(19)
(11)EP 3 242 514 B1

(12)EUROPEAN PATENT SPECIFICATION

(45)Mention of the grant of the patent:
03.07.2019 Bulletin 2019/27

(21)Application number: 14909387.4

(22)Date of filing:  30.12.2014
(51)International Patent Classification (IPC): 
H04W 72/04(2009.01)
H04W 72/12(2009.01)
(86)International application number:
PCT/CN2014/095623
(87)International publication number:
WO 2016/106576 (07.07.2016 Gazette  2016/27)

(54)

TRANSMISSION METHOD AND DEVICE FOR CONTROL INFORMATION

ÜBERTRAGUNGSVERFAHREN UND VORRICHTUNG FÜR STEUERUNGSINFORMATIONEN

PROCÉDÉ DE TRANSMISSION ET DISPOSITIF POUR INFORMATIONS DE COMMANDE


(84)Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

(43)Date of publication of application:
08.11.2017 Bulletin 2017/45

(60)Divisional application:
19169223.5

(73)Proprietor: Huawei Technologies Co., Ltd.
Longgang District Shenzhen, Guangdong 518129 (CN)

(72)Inventors:
  • LIU, Jianqin
    Shenzhen Guangdong 518129 (CN)
  • WU, Qiang
    Shenzhen Guangdong 518129 (CN)
  • ZHOU, Yongxing
    Shenzhen Guangdong 518129 (CN)
  • QU, Bingyu
    Shenzhen Guangdong 518129 (CN)

(74)Representative: Isarpatent 
Patent- und Rechtsanwälte Behnisch Barth Charles Hassa Peckmann & Partner mbB Friedrichstrasse 31
80801 München
80801 München (DE)


(56)References cited: : 
EP-A1- 2 816 858
WO-A1-2014/107052
CN-A- 102 752 085
WO-A1-2014/038863
CN-A- 101 765 184
US-A1- 2014 064 216
  
  • JIN, RONGHONG ET AL.: 'Smart Antennas in Wireless Communications' 30 June 2006, page 6, XP008185480
  
Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).


Description

TECHNICAL FIELD



[0001] Embodiments of the present invention relate to the communications field, and in particular, to a control information transmission method, and an apparatus.

BACKGROUND



[0002] An existing communications system, for example, a global system for mobile communications (GSM) system, a universal mobile telecommunications system (UMTS), or a Long Term Evolution (LTE) system, usually works in a carrier frequency band below 3 GHz. As intelligent terminals especially video services emerge, a high frequency band, for example, 3 GHz to 250 GHz, is becoming a candidate frequency band for a next-generation communications system.

[0003] A large-scale loss usually increases with an increase in a carrier frequency. For example, a path loss of 70 GHz is greater than a path loss of 28 GHz. In addition, factors such as the atmosphere and vegetation all cause a larger-scale loss on a high-frequency carrier. Therefore, channel receiving quality decreases with an increase in a carrier frequency. For a service channel, an increase in a large-scale loss and a decrease in channel receiving quality that are caused by an increase in a carrier frequency may be compensated by using a beamforming technology and a retransmission combining technology, thereby ensuring quality of high-frequency channel transmission. A common channel or signal usually includes control information. For transmission of the common channel or signal, for example, transmission of a broadcast channel, a synchronous signal, or a control channel, a large-scale loss cannot be compensated by using an antenna gain brought by the beamforming technology, because the common channel or signal usually carries some cell public information or signals, and coverage of all user equipments in an entire cell needs to be ensured so that the user equipments can receive the common channel or signal. Therefore, a beam used for transmission of the common channel or signal cannot be excessively narrow, and a relatively large antenna gain similar to that of the service channel cannot be obtained. In addition, reliability of the transmission of the common channel/signal cannot be enhanced by using the retransmission combining technology. Therefore, quality and reliability of transmission of a common channel or signal on a high-frequency carrier are relatively poor. US 2014/064216 A1 relates to a method for communicating Downlink Control Information (DCI) in an asymmetric multicarrier communication network environment, the method comprising: determining a carrier type corresponding to DCI to be transmitted to a mobile station from a plurality of carrier types, encoding the DCI in a DCI format, wherein the DCI format comprises a set of fields corresponding to the determined carrier type, and transmitting the DCI encoded in the DCI format to the mobile station through a downlink control channel on a primary carrier, wherein the DCI format comprises a carrier index field indicating type of the fields in the DCI format encoding the DCI and the carrier type corresponding to the encoded DCI. EP 2 816 858 A1 relates to method of operating a base station (10) of a cellular communications network (100), wherein time and frequency resources are used for data transmission, wherein a first scheduling granularity is used (200) for scheduling first resources associated with a first frequency range, and wherein a second scheduling granularity, which is different from said first scheduling granularity, is used (210) for scheduling second resources associated with a second frequency range.

SUMMARY



[0004] The invention is defined by the appended claims. Disclosed is a control information transmission method, and an apparatus, so as to improve reliability of high-frequency control information transmission.

[0005] According to a first aspect, a data transmission method is provided, including: sending, by a base station, first control information on a second carrier, where the first control information is used by the base station to send data on a first carrier according to the first control information; and sending, by the base station, the data on the first carrier according to the first control information; where duration of a transmission time interval of the first carrier is less than duration of a transmission time interval of the second carrier.

[0006] In a first possible implementation manner, the method further includes: sending, by the base station, carrier indication information on a third carrier, where the carrier indication information is used to indicate a carrier on which the data that is sent by the base station according to the first control information is located.

[0007] With reference to the first possible implementation manner, in a second possible implementation manner, the carrier indication information includes a carrier index number, and the carrier index number is used to indicate the carrier on which the data that is sent by the base station according to the first control information is located.

[0008] With reference to the first or the second possible implementation manner, in a third possible implementation manner, the carrier indication information further includes at least one of start transmission time interval information, time window length information, or end transmission time interval information, where the start transmission time interval information is used to indicate a start transmission time interval of the data that is sent on the first carrier by the base station, the end transmission time interval information is used to indicate an end transmission time interval of the data that is sent on the first carrier by the base station, and the time window length information is used to indicate a range of a transmission time interval occupied by the data that is sent on the first carrier by the base station.

[0009] With reference to the third possible implementation manner, in a fourth possible implementation manner, the sending, by a base station, first control information on a second carrier includes: sending, by the base station, the first control information on a control channel of a first transmission time interval of the second carrier; and the sending, by the base station, the data on the first carrier according to the first control information includes: sending, by the base station, the data according to the first control information and from the start transmission time interval to the end transmission time interval of the first carrier, where the start transmission time interval is a next transmission time interval of a transmission time interval that is of the first carrier and that corresponds to the last symbol occupied by the control channel, and the end transmission time interval is a transmission time interval that is of the first carrier and that corresponds to the last symbol occupied by a control channel of a second transmission time interval, where the second transmission time interval is a next transmission time interval of the first transmission time interval.

[0010] With reference to the first to the fourth possible implementation manners, in a fifth possible implementation manner, the third carrier is a primary component carrier.

[0011] With reference to the first to the fifth possible implementation manners, in a sixth possible implementation manner, the third carrier and the first or the second carrier are a same carrier.

[0012] With reference to the first possible implementation manner, in a seventh possible implementation manner, the first control information includes first time-frequency resource indication information, where the first time-frequency resource indication information is used to indicate a time-frequency resource used by the base station to send the data on the first carrier, and the method further includes: sending, by the base station, second control information on a fourth carrier; and the sending, by the base station, the data on the first carrier according to the first control information includes: sending, by the base station, the data on the first carrier according to the first control information and the second control information, where the second control information includes second time-frequency resource indication information, the second time-frequency resource indication information is used to indicate a time-frequency resource used by the base station to send the data on the first carrier, duration of a transmission time interval of the fourth carrier is greater than the duration of the transmission time interval of the second carrier, and the time-frequency resource of the first carrier that is indicated by the second time-frequency resource indication information includes the time-frequency resource of the first carrier that is indicated by the first time-frequency resource indication information.

[0013] With reference to the seventh possible implementation manner, in an eighth possible implementation manner, the base station sends third control information on a fifth carrier; and the sending, by the base station, the data on the first carrier according to the first control information includes: sending, by the base station, the data on the first carrier according to the first control information, the second control information, and the third control information, where the third control information includes third time-frequency resource indication information, the third time-frequency resource indication information is used to indicate a time-frequency resource used by the base station to send the data on the first carrier, duration of a transmission time interval of the fifth carrier is less than the duration of the transmission time interval of the second carrier, and the time-frequency resource of the first carrier that is indicated by the first time-frequency resource indication information includes the time-frequency resource of the first carrier that is indicated by the third time-frequency resource indication information.

[0014] With reference to the eighth possible implementation manner, in a ninth possible implementation manner, the base station sends fourth control information on the first carrier; and the sending, by the base station, the data on the first carrier according to the first control information includes: sending, by the base station, the data on the first carrier according to the first control information, the second control information, the third control information, and the fourth control information, where the fourth control information includes fourth time-frequency resource indication information, the fourth time-frequency resource indication information is used to indicate a time-frequency resource used by the base station to send the data on the first carrier, and the time-frequency resource of the first carrier that is indicated by the third time-frequency resource indication information includes the time-frequency resource of the first carrier that is indicated by the fourth time-frequency resource indication information.

[0015] With reference to the ninth possible implementation manner, in a tenth possible implementation manner, the frequency domain resource of the first carrier that is indicated by the second time-frequency resource indication information includes the frequency domain resource of the first carrier that is indicated by the first time-frequency resource indication information, the frequency domain resource of the first carrier that is indicated by the first time-frequency resource indication information includes the frequency domain resource of the first carrier that is indicated by the third time-frequency resource indication information, the frequency domain resource of the first carrier that is indicated by the third time-frequency resource indication information includes the frequency domain resource of the first carrier that is indicated by the fourth time-frequency resource indication information.

[0016] With reference to the seventh to the tenth possible implementation manners, in an eleventh possible implementation manner, the carrier indication information is further used to indicate a carrier on which the data that is sent by the base station according to the second, the third, or the fourth control information is located.

[0017] With reference to the eleventh possible implementation manner, in a twelfth possible implementation manner, the carrier indication information includes a carrier index number, and the carrier index number is used to indicate the carrier on which the data that is sent by the base station according to the second, the third, or the fourth control information is located.

[0018] With reference to the seventh to the twelfth possible implementation manners, in a thirteenth possible implementation manner, the third carrier is a primary component carrier.

[0019] With reference to the seventh to the thirteenth possible implementation manners, in a fourteenth possible implementation manner, the fourth carrier or the fifth carrier and the third carrier are a same carrier.

[0020] According to a second aspect, a base station is provided, including: a sending unit, configured to send first control information on a second carrier, where the first control information is used by the base station to send data on a first carrier according to the first control information; where the sending unit is further configured to send the data on the first carrier according to the first control information; where duration of a transmission time interval of the first carrier is less than duration of a transmission time interval of the second carrier.

[0021] In a first possible implementation manner, the sending unit is further configured to send carrier indication information on a third carrier, where the carrier indication information is used to indicate a carrier on which the data that is sent by the sending unit according to the first control information is located.

[0022] With reference to the first possible implementation manner, in a second possible implementation manner, the carrier indication information includes a carrier index number, and the carrier index number is used to indicate the carrier on which the data that is sent by the base station according to the first control information is located.

[0023] With reference to the first or the second possible implementation manner, in a third possible implementation manner, the carrier indication information further includes at least one of start transmission time interval information, time window length information, or end transmission time interval information, where the start transmission time interval information is used to indicate a start transmission time interval of the data that is sent on the first carrier by the sending unit, the end transmission time interval information is used to indicate an end transmission time interval of the data that is sent on the first carrier by the sending unit, and the time window length information is used to indicate a range of a transmission time interval occupied by the data that is sent on the first carrier by the sending unit.

[0024] With reference to the third possible implementation manner, in a fourth possible implementation manner, that the sending unit is configured to send the first control information on the second carrier includes: the sending unit sends the first control information on a control channel of a first transmission time interval of the second carrier; and that the sending unit is further configured to send the data on the first carrier according to the first control information includes: the sending unit sends the data according to the first control information and from the start transmission time interval to the end transmission time interval of the first carrier, where the start transmission time interval is a next transmission time interval of a transmission time interval that is of the first carrier and that corresponds to the last symbol occupied by the control channel, and the end transmission time interval is a transmission time interval that is of the first carrier and that corresponds to the last symbol occupied by a control channel of a second transmission time interval, where the second transmission time interval is a next transmission time interval of the first transmission time interval.

[0025] With reference to the first to the fourth possible implementation manners, in a fifth possible implementation manner, the third carrier is a primary component carrier.

[0026] With reference to the first to the fifth possible implementation manners, in a sixth possible implementation manner, the third carrier and the first or the second carrier are a same carrier.

[0027] With reference to the first possible implementation manner, in a seventh possible implementation manner, the first control information includes first time-frequency resource indication information, where the first time-frequency resource indication information is used to indicate a time-frequency resource used by the sending unit to send the data on the first carrier, and the base station further includes: the sending unit, further configured to send second control information on a fourth carrier; and the sending, by the sending unit, the data on the first carrier according to the first control information includes: sending, by the sending unit, the data on the first carrier according to the first control information and the second control information, where the second control information includes second time-frequency resource indication information, the second time-frequency resource indication information is used to indicate a time-frequency resource used by the sending unit to send the data on the first carrier, duration of a transmission time interval of the fourth carrier is greater than the duration of the transmission time interval of the second carrier, and the time-frequency resource of the first carrier that is indicated by the second time-frequency resource indication information includes the time-frequency resource of the first carrier that is indicated by the first time-frequency resource indication information.

[0028] With reference to the seventh possible implementation manner, in an eighth possible implementation manner, the base station further includes: the sending unit, further configured to send third control information on a fifth carrier; and the sending, by the sending unit, the data on the first carrier according to the first control information includes: sending, by the sending unit, the data on the first carrier according to the first control information, the second control information, and the third control information, where the third control information includes third time-frequency resource indication information, the third time-frequency resource indication information is used to indicate a time-frequency resource used by the sending unit to send the data on the first carrier, duration of a transmission time interval of the fifth carrier is less than the duration of the transmission time interval of the second carrier, and the time-frequency resource of the first carrier that is indicated by the first time-frequency resource indication information includes the time-frequency resource of the first carrier that is indicated by the third time-frequency resource indication information.

[0029] With reference to the eighth possible implementation manner, in a ninth possible implementation manner, the sending unit is further configured to send fourth control information on the first carrier; and the sending, by the sending unit, the data on the first carrier according to the first control information includes: sending, by the sending unit, the data on the first carrier according to the first control information, the second control information, the third control information, and the fourth control information, where the fourth control information includes fourth time-frequency resource indication information, the fourth time-frequency resource indication information is used to indicate a time-frequency resource used by the sending unit to send the data on the first carrier, and the time-frequency resource of the first carrier that is indicated by the third time-frequency resource indication information includes the time-frequency resource of the first carrier that is indicated by the fourth time-frequency resource indication information.

[0030] With reference to the ninth possible implementation manner, in a tenth possible implementation manner, the frequency domain resource of the first carrier that is indicated by the second time-frequency resource indication information includes the frequency domain resource of the first carrier that is indicated by the first time-frequency resource indication information, the frequency domain resource of the first carrier that is indicated by the first time-frequency resource indication information includes the frequency domain resource of the first carrier that is indicated by the third time-frequency resource indication information, the frequency domain resource of the first carrier that is indicated by the third time-frequency resource indication information includes the frequency domain resource of the first carrier that is indicated by the fourth time-frequency resource indication information.

[0031] With reference to the seventh to the tenth possible implementation manners, in an eleventh possible implementation manner, the carrier indication information is further used to indicate a carrier on which the data that is sent by the sending unit according to the second, the third, or the fourth control information is located.

[0032] With reference to the eleventh possible implementation manner, in a twelfth possible implementation manner, the carrier indication information includes a carrier index number, and the carrier index number is used to indicate the carrier on which the data that is sent by the sending unit according to the second, the third, or the fourth control information is located.

[0033] With reference to the seventh to the twelfth possible implementation manners, in a thirteenth possible implementation manner, the third carrier is a primary component carrier.

[0034] With reference to the seventh to the thirteenth possible implementation manners, in a fourteenth possible implementation manner, the fourth carrier or the fifth carrier and the third carrier are a same carrier.

[0035] According to a third aspect, a control information receiving method is provided, including: receiving, by user equipment, first control information on a second carrier, where the first control information is used by the user equipment to receive data on a first carrier according to the first control information; and receiving, by the user equipment, the data on the first carrier according to the first control information; where duration of a transmission time interval of the first carrier is less than duration of a transmission time interval of the second carrier.

[0036] In a first possible implementation manner, the method further includes: receiving, by the user equipment, carrier indication information on a third carrier, where the carrier indication information is used to indicate a carrier on which the data that is received by the user equipment according to the first control information is located.

[0037] With reference to the first possible implementation manner, in a second possible implementation manner, the carrier indication information includes a carrier index number, and the carrier index number is used to indicate the carrier on which the data that is received by the user equipment according to the first control information is located.

[0038] With reference to the first or the second possible implementation manner, in a third possible implementation manner, the carrier indication information further includes at least one of start transmission time interval information, time window length information, or end transmission time interval information, where the start transmission time interval information is used to indicate a start transmission time interval of the data that is received on the first carrier by the user equipment, the end transmission time interval information is used to indicate an end transmission time interval of the data that is received on the first carrier by the user equipment, and the time window length information is used to indicate a range of a transmission time interval occupied by the data that is received on the first carrier by the user equipment.

[0039] With reference to the third possible implementation manner, in a fourth possible implementation manner, the receiving, by user equipment, first control information on a second carrier includes: receiving, by the user equipment, the first control information on a control channel of a first transmission time interval of the second carrier; and the receiving, by the user equipment, the data on the first carrier according to the first control information includes: receiving, by the user equipment, the data according to the first control information and from the start transmission time interval to the end transmission time interval of the first carrier, where the start transmission time interval is a next transmission time interval of a transmission time interval that is of the first carrier and that corresponds to the last symbol occupied by the control channel, and the end transmission time interval is a transmission time interval that is of the first carrier and that corresponds to the last symbol occupied by a control channel of a second transmission time interval, where the second transmission time interval is a next transmission time interval of the first transmission time interval.

[0040] With reference to the first to the fourth possible implementation manners, in a fifth possible implementation manner, the third carrier is a primary component carrier.

[0041] With reference to the first to the fifth possible implementation manners, in a sixth possible implementation manner, the third carrier and the first or the second carrier are a same carrier.

[0042] With reference to the first possible implementation manner, in a seventh possible implementation manner, the first control information includes first time-frequency resource indication information, where the first time-frequency resource indication information is used to indicate a time-frequency resource used by the user equipment to receive the data on the first carrier, and the method further includes: receiving, by the user equipment, second control information on a fourth carrier; and the receiving, by the user equipment, the data on the first carrier according to the first control information includes: receiving, by the user equipment, the data on the first carrier according to the first control information and the second control information, where the second control information includes second time-frequency resource indication information, the second time-frequency resource indication information is used to indicate a time-frequency resource used by the user equipment to receive the data on the first carrier, duration of a transmission time interval of the fourth carrier is greater than the duration of the transmission time interval of the second carrier, and the time-frequency resource of the first carrier that is indicated by the second time-frequency resource indication information includes the time-frequency resource of the first carrier that is indicated by the first time-frequency resource indication information.

[0043] With reference to the seventh possible implementation manner, in an eighth possible implementation manner, the method further includes: sending, by the user equipment, third control information on a fifth carrier; and the receiving, by the user equipment, the data on the first carrier according to the first control information includes: receiving, by the user equipment, the data on the first carrier according to the first control information, the second control information, and the third control information, where the third control information includes third time-frequency resource indication information, the third time-frequency resource indication information is used to indicate a time-frequency resource used by the user equipment to receive the data on the first carrier, duration of a transmission time interval of the fifth carrier is less than the duration of the transmission time interval of the second carrier, and the time-frequency resource of the first carrier that is indicated by the first time-frequency resource indication information includes the time-frequency resource of the first carrier that is indicated by the third time-frequency resource indication information.

[0044] With reference to the eighth possible implementation manner, in a ninth possible implementation manner, the user equipment sends fourth control information on the first carrier; and the receiving, by the user equipment, the data on the first carrier according to the first control information includes: receiving, by the user equipment, the data on the first carrier according to the first control information, the second control information, the third control information, and the fourth control information, where the fourth control information includes fourth time-frequency resource indication information, the fourth time-frequency resource indication information is used to indicate a time-frequency resource used by the user equipment to receive the data on the first carrier, and the time-frequency resource of the first carrier that is indicated by the third time-frequency resource indication information includes the time-frequency resource of the first carrier that is indicated by the fourth time-frequency resource indication information.

[0045] With reference to the ninth possible implementation manner, in a tenth possible implementation manner, the frequency domain resource of the first carrier that is indicated by the second time-frequency resource indication information includes the frequency domain resource of the first carrier that is indicated by the first time-frequency resource indication information, the frequency domain resource of the first carrier that is indicated by the first time-frequency resource indication information includes the frequency domain resource of the first carrier that is indicated by the third time-frequency resource indication information, the frequency domain resource of the first carrier that is indicated by the third time-frequency resource indication information includes the frequency domain resource of the first carrier that is indicated by the fourth time-frequency resource indication information.

[0046] With reference to the seventh to the tenth possible implementation manners, in an eleventh possible implementation manner, the carrier indication information is further used to indicate a carrier on which the data that is received by the user equipment according to the second, the third, or the fourth control information is located.

[0047] With reference to the eleventh possible implementation manner, in a twelfth possible implementation manner, the carrier indication information includes a carrier index number, and the carrier index number is used to indicate the carrier on which the data that is received by the user equipment according to the second, the third, or the fourth control information is located.

[0048] With reference to the seventh to the twelfth possible implementation manners, in a thirteenth possible implementation manner, the third carrier is a primary component carrier.

[0049] With reference to the seventh to the thirteenth possible implementation manners, in a fourteenth possible implementation manner, the third carrier and the fourth carrier or the fifth carrier are a same carrier.

[0050] According to a fourth aspect, user equipment is provided, including: a receiving unit, configured to receive first control information on a second carrier, where the first control information is used by the receiving unit to receive data on a first carrier according to the first control information; where the receiving unit is further configured to receive the data on the first carrier according to the first control information; where duration of a transmission time interval of the first carrier is less than duration of a transmission time interval of the second carrier.

[0051] In a first possible implementation manner, the receiving unit receives carrier indication information on a third carrier, where the carrier indication information is used to indicate a carrier on which the data that is received by the user equipment according to the first control information is located.

[0052] With reference to the first possible implementation manner, in a second possible implementation manner, the carrier indication information includes a carrier index number, and the carrier index number is used to indicate the carrier on which the data that is received by the receiving unit according to the first control information is located.

[0053] With reference to the first or the second possible implementation manner, in a third possible implementation manner, the carrier indication information further includes at least one of start transmission time interval information, time window length information, or end transmission time interval information, where the start transmission time interval information is used to indicate a start transmission time interval of the data that is received on the first carrier by the receiving unit, the end transmission time interval information is used to indicate an end transmission time interval of the data that is received on the first carrier by the receiving unit, and the time window length information is used to indicate a range of a transmission time interval occupied by the data that is received on the first carrier by the receiving unit.

[0054] With reference to the third possible implementation manner, in a fourth possible implementation manner, the receiving, by the receiving unit, the first control information on the second carrier includes: receiving, by the receiving unit, the first control information on a control channel of a first transmission time interval of the second carrier; and the receiving, by the receiving unit, the data on the first carrier according to the first control information includes: receiving, by the receiving unit, the data according to the first control information and from the start transmission time interval to the end transmission time interval of the first carrier, where the start transmission time interval is a next transmission time interval of a transmission time interval that is of the first carrier and that corresponds to the last symbol occupied by the control channel, and the end transmission time interval is a transmission time interval that is of the first carrier and that corresponds to the last symbol occupied by a control channel of a second transmission time interval, where the second transmission time interval is a next transmission time interval of the first transmission time interval.

[0055] With reference to the first to the fourth possible implementation manners, in a fifth possible implementation manner, the third carrier is a primary component carrier.

[0056] With reference to the first to the fifth possible implementation manners, in a sixth possible implementation manner, the third carrier and the first or the second carrier are a same carrier.

[0057] With reference to the first possible implementation manner, in a seventh possible implementation manner, the first control information includes first time-frequency resource indication information, where the first time-frequency resource indication information is used to indicate a time-frequency resource used by the receiving unit to receive the data on the first carrier, and the user equipment further includes: the receiving unit, further configured to receive second control information on a fourth carrier; and the receiving, by the receiving unit, the data on the first carrier according to the first control information includes: receiving, by the receiving unit, the data on the first carrier according to the first control information and the second control information, where the second control information includes second time-frequency resource indication information, the second time-frequency resource indication information is used to indicate a time-frequency resource used by the receiving unit to receive the data on the first carrier, duration of a transmission time interval of the fourth carrier is greater than the duration of the transmission time interval of the second carrier, and the time-frequency resource of the first carrier that is indicated by the second time-frequency resource indication information includes the time-frequency resource of the first carrier that is indicated by the first time-frequency resource indication information.

[0058] With reference to the seventh possible implementation manner, in an eighth possible implementation manner, the user equipment further includes: the receiving unit, further configured to send third control information on a fifth carrier; and the receiving, by the receiving unit, the data on the first carrier according to the first control information includes: receiving, by the receiving unit, the data on the first carrier according to the first control information, the second control information, and the third control information, where the third control information includes third time-frequency resource indication information, the third time-frequency resource indication information is used to indicate a time-frequency resource used by the receiving unit to receive the data on the first carrier, duration of a transmission time interval of the fifth carrier is less than the duration of the transmission time interval of the second carrier, and the time-frequency resource of the first carrier that is indicated by the first time-frequency resource indication information includes the time-frequency resource of the first carrier that is indicated by the third time-frequency resource indication information.

[0059] With reference to the eighth possible implementation manner, in a ninth possible implementation manner, the receiving unit is further configured to send fourth control information on the first carrier; and the receiving, by the receiving unit, the data on the first carrier according to the first control information includes: receiving, by the receiving unit, the data on the first carrier according to the first control information, the second control information, the third control information, and the fourth control information, where the fourth control information includes fourth time-frequency resource indication information, the fourth time-frequency resource indication information is used to indicate a time-frequency resource used by the receiving unit to receive the data on the first carrier, and the time-frequency resource of the first carrier that is indicated by the third time-frequency resource indication information includes the time-frequency resource of the first carrier that is indicated by the fourth time-frequency resource indication information.

[0060] With reference to the ninth possible implementation manner, in a tenth possible implementation manner, the frequency domain resource of the first carrier that is indicated by the second time-frequency resource indication information includes the frequency domain resource of the first carrier that is indicated by the first time-frequency resource indication information, the frequency domain resource of the first carrier that is indicated by the first time-frequency resource indication information includes the frequency domain resource of the first carrier that is indicated by the third time-frequency resource indication information, the frequency domain resource of the first carrier that is indicated by the third time-frequency resource indication information includes the frequency domain resource of the first carrier that is indicated by the fourth time-frequency resource indication information.

[0061] With reference to the seventh to the tenth possible implementation manners, in an eleventh possible implementation manner, the carrier indication information is further used to indicate a carrier on which the data that is received by the receiving unit according to the second, the third, or the fourth control information is located.

[0062] With reference to the eleventh possible implementation manner, in a twelfth possible implementation manner, the carrier indication information includes a carrier index number, and the carrier index number is used to indicate the carrier on which the data that is received by the receiving unit according to the second, the third, or the fourth control information is located.

[0063] With reference to the seventh to the twelfth possible implementation manners, in a thirteenth possible implementation manner, the third carrier is a primary component carrier.

[0064] With reference to the seventh to the thirteenth possible implementation manners, in a fourteenth possible implementation manner, the third carrier and the fourth carrier or the fifth carrier are a same carrier.

[0065] According to a fifth aspect, a control information receiving method is provided, including: sending, by a base station, first data in a first transmission time interval of a first carrier; and receiving, by the base station in a first time unit of a second transmission time interval of a second carrier, first acknowledgment information sent by user equipment, where the first acknowledgment information is used to indicate whether the user equipment correctly receives the first data, and the first transmission time interval of the first carrier is less than the second transmission time interval of the second carrier.

[0066] In a first possible implementation manner, the method further includes: receiving, by the base station, the first acknowledgment information in a second time unit of the second transmission time interval of the second carrier, where the first acknowledgment information is used to indicate whether the user equipment correctly receives the first data, and the second time unit and the first time unit are different time units.

[0067] In a second possible implementation manner, the method further includes: sending, by the base station, second data in a third transmission time interval of the first carrier, where the third transmission time interval and the first transmission time interval are different transmission time intervals; and receiving, by the base station, second acknowledgment information in the first time unit of the second transmission time interval of the second carrier, where the second acknowledgment information is used to indicate whether the user equipment correctly receives the second data.

[0068] With reference to the fifth aspect, or the first to the second possible implementation manners, in a third possible implementation manner, the first carrier is a downlink carrier, and the second carrier is an uplink carrier.

[0069] According to a sixth aspect, a base station is provided, including: a sending unit, configured to send first data in a first transmission time interval of a first carrier; and a receiving unit, configured to receive, in a first time unit of a second transmission time interval of a second carrier, first acknowledgment information sent by user equipment, where the first acknowledgment information is used to indicate whether the user equipment correctly receives the first data, and the first transmission time interval of the first carrier is less than the second transmission time interval of the second carrier.

[0070] In a first possible implementation manner, the base station further includes: the receiving unit, receiving the first acknowledgment information in a second time unit of the second transmission time interval of the second carrier, where the first acknowledgment information is used to indicate whether the user equipment correctly receives the first data, and the second time unit and the first time unit are different time units.

[0071] In a second possible implementation manner, the base station further includes: the sending unit, sending second data in a third transmission time interval of the first carrier, where the third transmission time interval and the first transmission time interval are different transmission time intervals; and the receiving unit, receiving second acknowledgment information in the first time unit of the second transmission time interval of the second carrier, where the second acknowledgment information is used to indicate whether the user equipment correctly receives the second data.

[0072] With reference to the sixth aspect, or the first to the second possible implementation manners, in a third possible implementation manner, the first carrier is a downlink carrier, and the second carrier is an uplink carrier.

[0073] According to a seventh aspect, a control information transmission method is provided, including: receiving, by user equipment, first data in a first transmission time interval of a first carrier; and sending, by the user equipment, first acknowledgment information in a first time unit of a second transmission time interval of a second carrier, where the first acknowledgment information is used to indicate whether the user equipment correctly receives the first data, and the first transmission time interval of the first carrier is less than the second transmission time interval of the second carrier.

[0074] In a first possible implementation manner, the method further includes: sending, by the user equipment, the first acknowledgment information in a second time unit of the second transmission time interval of the second carrier, where the first acknowledgment information is used to indicate whether the user equipment correctly receives the first data, and the second time unit and the first time unit are different time units.

[0075] In a second possible implementation manner, the method further includes: receiving, by the user equipment, second data in a third transmission time interval of the first carrier, where the third transmission time interval and the first transmission time interval are different transmission time intervals; and sending, by the user equipment, second acknowledgment information in the first time unit of the second transmission time interval of the second carrier, where the second acknowledgment information is used to indicate whether the user equipment correctly receives the second data.

[0076] With reference to the seventh aspect, or the first to the second possible implementation manners, in a third possible implementation manner, the first carrier is a downlink carrier, and the second carrier is an uplink carrier.

[0077] According to an eighth aspect, user equipment is provided, including: a receiving unit, configured to receive first data in a first transmission time interval of a first carrier; and a sending unit, configured to send first acknowledgment information in a first time unit of a second transmission time interval of a second carrier, where the first acknowledgment information is used to indicate whether the receiving unit correctly receives the first data, and the first transmission time interval of the first carrier is less than the second transmission time interval of the second carrier.

[0078] In a first possible implementation manner, the sending unit is further configured to send the first acknowledgment information in a second time unit of the second transmission time interval of the second carrier, where the first acknowledgment information is used to indicate whether the receiving unit correctly receives the first data, and the second time unit and the first time unit are different time units.

[0079] In a second possible implementation manner, the receiving unit is further configured to receive second data in a third transmission time interval of the first carrier, where the third transmission time interval and the first transmission time interval are different transmission time intervals; and the sending unit is further configured to send second acknowledgment information in the first time unit of the second transmission time interval of the second carrier, where the second acknowledgment information is used to indicate whether the receiving unit correctly receives the second data.

[0080] With reference to the eighth aspect, or the first to the second possible implementation manners, in a third possible implementation manner, the first carrier is a downlink carrier, and the second carrier is an uplink carrier.

[0081] According to the foregoing solutions, duration of a transmission time interval of a first carrier is less than duration of a transmission time interval of a second carrier. Therefore, a frequency of the first carrier is greater than a frequency of the second carrier, that is, compared with the second carrier, the first carrier is a high-frequency carrier. A base station sends data on the first carrier, and sends first control information on the second carrier. Because the frequency of the second carrier is less than the frequency of the first carrier, a large-scale loss on the second carrier is less than a large-scale loss on the first carrier. Therefore, the first control information is sent on the second carrier, thereby improving reliability of transmission of the first control information.

BRIEF DESCRIPTION OF DRAWINGS



[0082] To describe the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings required for describing the embodiments or the prior art.

FIG. 1 is a diagram of a system architecture according to an embodiment of the present invention;

FIG. 2 shows a control information transmission method according to an embodiment of the present invention;

FIG. 3 shows a control information transmission apparatus according to an embodiment of the present invention;

FIG. 4 shows a control information receiving method according to an embodiment of the present invention;

FIG. 5 shows a control information receiving apparatus according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of a carrier for communication between a base station and user equipment according to an embodiment of the present invention;

FIG. 7 is a schematic diagram of a carrier for communication between a base station and user equipment according to an embodiment of the present invention;

FIG. 8 shows a control information receiving method according to an embodiment of the present invention;

FIG. 9 shows a control information transmission apparatus according to an embodiment of the present invention;

FIG. 10 shows a control information transmission method according to an embodiment of the present invention;

FIG. 11 shows a control information transmission apparatus according to an embodiment of the present invention;

FIG. 12 is a schematic diagram of control information transmission according to an embodiment of the present invention;

FIG. 13 is a schematic diagram of control information transmission according to another embodiment of the present invention; and

FIG. 14 is a schematic diagram of control information transmission according to still another embodiment of the present invention.


DESCRIPTION OF EMBODIMENTS



[0083] The following clearly and completely describes the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0084] It should be understood that the technical solutions of this application may be applied to various communications systems, for example, a GSM system, a UMTS system, an LTE system, and a5th Generation mobile communications system. This is not limited in the embodiments of this application.

[0085] FIG. 1 is a diagram of a system architecture according to an embodiment of the present invention.

[0086] A base station provided in this embodiment of the present invention may be a Node B (NB) in UMTS, an evolved NodeB (eNodeB, eNB) in LTE, or a base station or controller in a 5th Generation mobile communications system.

[0087] User equipment (UE) provided in this embodiment of the present invention may be, but is not limited to, a mobile station (MS), a mobile terminal, a mobile telephone, a handset, portable equipment, or the like.

[0088] In this embodiment of the present invention, the base station sends control information and data to the user equipment, and the user equipment receives the data according to the control information. In a future high-frequency application scenario, both a low-frequency carrier already existing in a current LTE system and multiple consecutive or nonconsecutive high-frequency carriers exist, and a user terminal or another receiving node can simultaneously support multiple frequency ranges. Carriers of different frequencies have different air interface transmission delays. For example, an air interface transmission delay of a low frequency of 2 GHz is 4 ms to 5 ms, while an air interface transmission delay of a relatively high frequency, for example, 28 GHz or 70 GHz is 1 ms. Therefore, carriers of different frequencies have different minimum time granularities, such as a transmission time interval (TTI), and time sequence settings, and a bundling transmission technology based on carriers of multiple different frequencies needs to be considered and designed.

[0089] In an optional embodiment, after the user equipment receives the data sent by the base station, the user equipment sends acknowledgment information (ACK) or negative acknowledgment information (NACK) to the base station, to notify the base station whether the user equipment correctly receives the data.

[0090] This embodiment of the present invention is based on the foregoing system architecture. It should be noted that, without conflicts, the embodiments and features in the embodiments may be mutually combined.

[0091] FIG. 2 shows a control information transmission method according to an embodiment of the present invention. The method includes the following steps.

[0092] Step 21: A base station sends first control information on a second carrier. The first control information is used by the base station to send data on a first carrier according to the first control information. Optionally, the first carrier is a high-frequency carrier, and a frequency range of the high-frequency carrier is 3 GHz to 250 GHz. Optionally, the first control information may be at least one of downlink control information, downlink data transmission scheduling information, uplink data transmission scheduling information, or an uplink power control command.

[0093] Step 22: The base station sends the data on the first carrier according to the first control information. Duration of a transmission time interval of the first carrier is less than duration of a transmission time interval of the second carrier.

[0094] Optionally, a frequency of the second carrier is less than a frequency of the first carrier. Optionally, the transmission time interval is a subframe.

[0095] Duration of a transmission time interval of a first carrier is less than duration of a transmission time interval of a second carrier. Therefore, a frequency of the first carrier is greater than a frequency of the second carrier, that is, compared with the second carrier, the first carrier is a high-frequency carrier. A base station sends data on the first carrier, and sends first control information on the second carrier. Because the frequency of the second carrier is less than the frequency of the first carrier, a large-scale loss on the second carrier is less than a large-scale loss on the first carrier. Therefore, the first control information is sent on the second carrier, thereby improving reliability of transmission of the first control information.

[0096] In an optional embodiment, the base station sends carrier indication information on a third carrier, where the carrier indication information is used to indicate a carrier on which the data that is sent by the base station according to the first control information is located. Optionally, the carrier indication information is used to indicate the first carrier.

[0097] In an optional embodiment, the carrier indication information includes a carrier index number, and the carrier index number is used to indicate the carrier on which the data that is sent by the base station according to the first control information is located. Optionally, the carrier index number indicates the first carrier.

[0098] In an optional embodiment, the carrier indication information further includes at least one of start transmission time interval information, time window length information, or end transmission time interval information. The start transmission time interval information is used to indicate a start transmission time interval of the data that is sent on the first carrier by the base station, the end transmission time interval information is used to indicate an end transmission time interval of the data that is sent on the first carrier by the base station, and the time window length information is used to indicate a range of a transmission time interval occupied by the data that is sent on the first carrier by the base station.

[0099] In an optional embodiment, step 21 of sending, by a base station, first control information on a second carrier includes: sending, by the base station, the first control information on a control channel of a first transmission time interval of the second carrier. Step 22 of sending, by the base station, the data on the first carrier according to the first control information includes: sending, by the base station, the data according to the first control information and from the start transmission time interval to the end transmission time interval of the first carrier. The start transmission time interval is a next transmission time interval of a transmission time interval that is of the first carrier and that corresponds to the last symbol occupied by the control channel, and the end transmission time interval is a transmission time interval that is of the first carrier and that corresponds to the last symbol occupied by a control channel of a second transmission time interval, where the second transmission time interval is a next transmission time interval of the first transmission time interval.

[0100] In an optional embodiment, the third carrier is a primary component carrier.

[0101] In an optional embodiment, the third carrier and the first or the second carrier are a same carrier.

[0102] In an optional embodiment, the first control information includes first time-frequency resource indication information, where the first time-frequency resource indication information is used to indicate a time-frequency resource used by the base station to send the data on the first carrier, and the method further includes: sending, by the base station, second control information on a fourth carrier; and the sending, by the base station, the data on the first carrier according to the first control information includes: sending, by the base station, the data on the first carrier according to the first control information and the second control information, where the second control information includes second time-frequency resource indication information, the second time-frequency resource indication information is used to indicate a time-frequency resource used by the base station to send the data on the first carrier, duration of a transmission time interval of the fourth carrier is greater than the duration of the transmission time interval of the second carrier, and the time-frequency resource of the first carrier that is indicated by the second time-frequency resource indication information includes the time-frequency resource of the first carrier that is indicated by the first time-frequency resource indication information. Optionally, a frequency of the fourth carrier is less than a frequency of the second carrier.

[0103] In an optional embodiment, the base station sends third control information on a fifth carrier. Step 22 of sending, by the base station, the data on the first carrier according to the first control information includes: sending, by the base station, the data on the first carrier according to the first control information, the second control information, and the third control information, where the third control information includes third time-frequency resource indication information, the third time-frequency resource indication information is used to indicate a time-frequency resource used by the base station to send the data on the first carrier, duration of a transmission time interval of the fifth carrier is less than the duration of the transmission time interval of the second carrier, and the time-frequency resource of the first carrier that is indicated by the first time-frequency resource indication information includes the time-frequency resource of the first carrier that is indicated by the third time-frequency resource indication information. Optionally, a frequency of the fifth carrier is greater than a frequency of the second carrier.

[0104] In an optional embodiment, the base station sends fourth control information on the first carrier. Step 22 of sending, by the base station, the data on the first carrier according to the first control information includes: sending, by the base station, the data on the first carrier according to the first control information, the second control information, the third control information, and the fourth control information, where the fourth control information includes fourth time-frequency resource indication information, the fourth time-frequency resource indication information is used to indicate a time-frequency resource used by the base station to send the data on the first carrier, and the time-frequency resource of the first carrier that is indicated by the third time-frequency resource indication information includes the time-frequency resource of the first carrier that is indicated by the fourth time-frequency resource indication information. Optionally, a frequency of the first carrier is greater than a frequency of the fifth carrier.

[0105] In an optional embodiment, the frequency domain resource of the first carrier that is indicated by the second time-frequency resource indication information includes the frequency domain resource of the first carrier that is indicated by the first time-frequency resource indication information, the frequency domain resource of the first carrier that is indicated by the first time-frequency resource indication information includes the frequency domain resource of the first carrier that is indicated by the third time-frequency resource indication information, the frequency domain resource of the first carrier that is indicated by the third time-frequency resource indication information includes the frequency domain resource of the first carrier that is indicated by the fourth time-frequency resource indication information.

[0106] In an optional embodiment, the carrier indication information is further used to indicate a carrier on which the data that is sent by the base station according to the second, the third, or the fourth control information is located.

[0107] In an optional embodiment, the carrier indication information includes a carrier index number, and the carrier index number is used to indicate the carrier on which the data that is sent by the base station according to the second, the third, or the fourth control information is located.

[0108] In an optional embodiment, the third carrier is a primary component carrier.

[0109] In an optional embodiment, the fourth carrier or the fifth carrier and the third carrier are a same carrier.

[0110] FIG. 3 shows a control information transmission apparatus, that is, a base station, according to an embodiment of the present invention. The base station is configured to perform the control information transmission method provided in the embodiment shown in FIG. 2.

[0111] The base station includes a sending unit 301. The sending unit 301 is configured to send first control information on a second carrier. The first control information is used by the base station to send data on a first carrier according to the first control information. Optionally, the first carrier is a high-frequency carrier, and a frequency range of the high-frequency carrier is 3 GHz to 250 GHz. Optionally, the first control information may be at least one of downlink control information, downlink data transmission scheduling information, uplink data transmission scheduling information, or an uplink power control command.

[0112] The sending unit 301 is further configured to send the data on the first carrier according to the first control information. Duration of a transmission time interval of the first carrier is less than duration of a transmission time interval of the second carrier.

[0113] Optionally, a frequency of the second carrier is less than a frequency of the first carrier. Optionally, the transmission time interval is a subframe.

[0114] Duration of a transmission time interval of a first carrier is less than duration of a transmission time interval of a second carrier. Therefore, a frequency of the first carrier is greater than a frequency of the second carrier, that is, compared with the second carrier, the first carrier is a high-frequency carrier. A base station sends data on the first carrier, and sends first control information on the second carrier. Because the frequency of the second carrier is less than the frequency of the first carrier, a large-scale loss on the second carrier is less than a large-scale loss on the first carrier. Therefore, the first control information is sent on the second carrier, thereby improving reliability of transmission of the first control information.

[0115] In an optional embodiment, the sending unit 301 is further configured to send carrier indication information on a third carrier, where the carrier indication information is used to indicate a carrier on which the data that is sent by the sending unit 301 according to the first control information is located. Optionally, the carrier indication information is used to indicate the first carrier.

[0116] In an optional embodiment, the carrier indication information includes a carrier index number, and the carrier index number is used to indicate the carrier on which the data that is sent by the base station according to the first control information is located. Optionally, the carrier index number indicates the first carrier.

[0117] In an optional embodiment, the carrier indication information further includes at least one of start transmission time interval information, time window length information, or end transmission time interval information. The start transmission time interval information is used to indicate a start transmission time interval of the data that is sent on the first carrier by the sending unit 301, the end transmission time interval information is used to indicate an end transmission time interval of the data that is sent on the first carrier by the sending unit 301, and the time window length information is used to indicate a range of a transmission time interval occupied by the data that is sent on the first carrier by the sending unit 301.

[0118] In an optional embodiment, that the sending unit 301 is configured to send the first control information on the second carrier includes: the sending unit 301 sends the first control information on a control channel of a first transmission time interval of the second carrier; and that the sending unit 301 is further configured to send the data on the first carrier according to the first control information includes: the sending unit 301 sends the data according to the first control information and from the start transmission time interval to the end transmission time interval of the first carrier, where the start transmission time interval is a next transmission time interval of a transmission time interval that is of the first carrier and that corresponds to the last symbol occupied by the control channel, and the end transmission time interval is a transmission time interval that is of the first carrier and that corresponds to the last symbol occupied by a control channel of a second transmission time interval, where the second transmission time interval is a next transmission time interval of the first transmission time interval.

[0119] In an optional embodiment, the third carrier is a primary component carrier.

[0120] In an optional embodiment, the third carrier and the first or the second carrier are a same carrier.

[0121] In an optional embodiment, the first control information includes first time-frequency resource indication information, where the first time-frequency resource indication information is used to indicate a time-frequency resource used by the sending unit 301 to send the data on the first carrier, and the base station further includes: the sending unit 301, further configured to send second control information on a fourth carrier; and the sending, by the sending unit 301, the data on the first carrier according to the first control information includes: sending, by the sending unit 301, the data on the first carrier according to the first control information and the second control information, where the second control information includes second time-frequency resource indication information, the second time-frequency resource indication information is used to indicate a time-frequency resource used by the sending unit 301 to send the data on the first carrier, duration of a transmission time interval of the fourth carrier is greater than the duration of the transmission time interval of the second carrier, and the time-frequency resource of the first carrier that is indicated by the second time-frequency resource indication information includes the time-frequency resource of the first carrier that is indicated by the first time-frequency resource indication information. Optionally, a frequency of the fourth carrier is less than a frequency of the second carrier.

[0122] In an optional embodiment, the base station further includes: the sending unit 301, further configured to send third control information on a fifth carrier. The sending, by the sending unit 301, the data on the first carrier according to the first control information includes: sending, by the sending unit 301, the data on the first carrier according to the first control information, the second control information, and the third control information, where the third control information includes third time-frequency resource indication information, the third time-frequency resource indication information is used to indicate a time-frequency resource used by the sending unit 301 to send the data on the first carrier, duration of a transmission time interval of the fifth carrier is less than the duration of the transmission time interval of the second carrier, and the time-frequency resource of the first carrier that is indicated by the first time-frequency resource indication information includes the time-frequency resource of the first carrier that is indicated by the third time-frequency resource indication information. Optionally, a frequency of the fifth carrier is greater than a frequency of the second carrier.

[0123] In an optional embodiment, the sending unit 301 is further configured to send fourth control information on the first carrier. The sending, by the sending unit 301, the data on the first carrier according to the first control information includes: sending, by the sending unit 301, the data on the first carrier according to the first control information, the second control information, the third control information, and the fourth control information, where the fourth control information includes fourth time-frequency resource indication information, the fourth time-frequency resource indication information is used to indicate a time-frequency resource used by the sending unit 301 to send the data on the first carrier, and the time-frequency resource of the first carrier that is indicated by the third time-frequency resource indication information includes the time-frequency resource of the first carrier that is indicated by the fourth time-frequency resource indication information. Optionally, a frequency of the first carrier is greater than a frequency of the fifth carrier.

[0124] In an optional embodiment, the frequency domain resource of the first carrier that is indicated by the second time-frequency resource indication information includes the frequency domain resource of the first carrier that is indicated by the first time-frequency resource indication information, the frequency domain resource of the first carrier that is indicated by the first time-frequency resource indication information includes the frequency domain resource of the first carrier that is indicated by the third time-frequency resource indication information, the frequency domain resource of the first carrier that is indicated by the third time-frequency resource indication information includes the frequency domain resource of the first carrier that is indicated by the fourth time-frequency resource indication information.

[0125] In an optional embodiment, the carrier indication information is further used to indicate a carrier on which the data that is sent by the sending unit 301 according to the second, the third, or the fourth control information is located.

[0126] In an optional embodiment, the carrier indication information includes a carrier index number, and the carrier index number is used to indicate the carrier on which the data that is sent by the sending unit 301 according to the second, the third, or the fourth control information is located.

[0127] In an optional embodiment, the third carrier is a primary component carrier.

[0128] In an optional embodiment, the fourth carrier or the fifth carrier and the third carrier are a same carrier.

[0129] In an optional implementation manner, the sending unit 301 may be a transmitter. Alternatively, the sending unit 301 may be implemented by using a transceiver. The transmitter and the transceiver may be a radio frequency circuit or a combination that includes the processor and a radio frequency circuit. The base station includes a transmitter. The transmitter is configured to send first control information on a second carrier, where the first control information is used by the base station to send data on a first carrier according to the first control information. The transmitter is further configured to send the data on the first carrier according to the first control information, where duration of a transmission time interval of the first carrier is less than duration of a transmission time interval of the second carrier.

[0130] FIG. 4 shows a control information receiving method according to an embodiment of the present invention. The method includes the following steps.

[0131] Step 41:User equipment receives first control information on a second carrier. The first control information is used by the user equipment to receive data on a first carrier according to the first control information. Optionally, the first carrier is a high-frequency carrier. Optionally, a frequency range of the high-frequency carrier is 3 GHz to 250 GHz. Optionally, the first control information may be at least one of downlink control information, downlink data transmission scheduling information, uplink data transmission scheduling information, or an uplink power control command.

[0132] Step 42: The user equipment receives the data on the first carrier according to the first control information. Duration of a transmission time interval of the first carrier is less than duration of a transmission time interval of the second carrier. Optionally, the first control information may be at least one of downlink control information, downlink data transmission scheduling information, uplink data transmission scheduling information, or an uplink power control command. Optionally, a frequency of the second carrier is less than a frequency of the first carrier. Optionally, the transmission time interval is a subframe.

[0133] Duration of a transmission time interval of a first carrier is less than duration of a transmission time interval of a second carrier. Therefore, a frequency of the first carrier is greater than a frequency of the second carrier, that is, compared with the second carrier, the first carrier is a high-frequency carrier. A base station sends data on the first carrier, and sends first control information on the second carrier. Because the frequency of the second carrier is less than the frequency of the first carrier, a large-scale loss on the second carrier is less than a large-scale loss on the first carrier. Therefore, the first control information is sent on the second carrier, thereby improving reliability of transmission of the first control information.

[0134] In an optional embodiment, the user equipment receives carrier indication information on a third carrier, where the carrier indication information is used to indicate a carrier on which the data that is received by the user equipment according to the first control information is located. Optionally, the carrier indication information is used to indicate the first carrier.

[0135] In an optional embodiment, the carrier indication information includes a carrier index number, and the carrier index number is used to indicate the carrier on which the data that is received by the user equipment according to the first control information is located. Optionally, the carrier index number indicates the first carrier.

[0136] In an optional embodiment, the carrier indication information further includes at least one of start transmission time interval information, time window length information, or end transmission time interval information. The start transmission time interval information is used to indicate a start transmission time interval of the data that is received on the first carrier by the user equipment, the end transmission time interval information is used to indicate an end transmission time interval of the data that is received on the first carrier by the user equipment, and the time window length information is used to indicate a range of a transmission time interval occupied by the data that is received on the first carrier by the user equipment.

[0137] In an optional embodiment, step 41 of receiving, by user equipment, first control information on a second carrier includes: receiving, by the user equipment, the first control information on a control channel of a first transmission time interval of the second carrier. Step 42 of receiving, by the user equipment, the data on the first carrier according to the first control information includes: receiving, by the user equipment, the data according to the first control information and from the start transmission time interval to the end transmission time interval of the first carrier, where the start transmission time interval is a next transmission time interval of a transmission time interval that is of the first carrier and that corresponds to the last symbol occupied by the control channel, and the end transmission time interval is a transmission time interval that is of the first carrier and that corresponds to the last symbol occupied by a control channel of a second transmission time interval, where the second transmission time interval is a next transmission time interval of the first transmission time interval.

[0138] In an optional embodiment, the third carrier is a primary component carrier.

[0139] In an optional embodiment, the third carrier and the first or the second carrier are a same carrier.

[0140] In an optional embodiment, the first control information includes first time-frequency resource indication information, where the first time-frequency resource indication information is used to indicate a time-frequency resource used by the user equipment to receive the data on the first carrier, and the method further includes: receiving, by the user equipment, second control information on a fourth carrier. Step 42 of receiving, by the user equipment, the data on the first carrier according to the first control information includes: receiving, by the user equipment, the data on the first carrier according to the first control information and the second control information, where the second control information includes second time-frequency resource indication information, the second time-frequency resource indication information is used to indicate a time-frequency resource used by the user equipment to receive the data on the first carrier, duration of a transmission time interval of the fourth carrier is greater than the duration of the transmission time interval of the second carrier, and the time-frequency resource of the first carrier that is indicated by the second time-frequency resource indication information includes the time-frequency resource of the first carrier that is indicated by the first time-frequency resource indication information. Optionally, a frequency of the fourth carrier is less than a frequency of the second carrier.

[0141] In an optional embodiment, the user equipment sends third control information on a fifth carrier. Step 42 of receiving, by the user equipment, the data on the first carrier according to the first control information includes: receiving, by the user equipment, the data on the first carrier according to the first control information, the second control information, and the third control information, where the third control information includes third time-frequency resource indication information, the third time-frequency resource indication information is used to indicate a time-frequency resource used by the user equipment to receive the data on the first carrier, duration of a transmission time interval of the fifth carrier is less than the duration of the transmission time interval of the second carrier, and the time-frequency resource of the first carrier that is indicated by the first time-frequency resource indication information includes the time-frequency resource of the first carrier that is indicated by the third time-frequency resource indication information. Optionally, a frequency of the fifth carrier is greater than a frequency of the second carrier.

[0142] In an optional embodiment, the user equipment sends fourth control information on the first carrier. Step 42 of receiving, by the user equipment, the data on the first carrier according to the first control information includes: receiving, by the user equipment, the data on the first carrier according to the first control information, the second control information, the third control information, and the fourth control information, where the fourth control information includes fourth time-frequency resource indication information, the fourth time-frequency resource indication information is used to indicate a time-frequency resource used by the user equipment to receive the data on the first carrier, and the time-frequency resource of the first carrier that is indicated by the third time-frequency resource indication information includes the time-frequency resource of the first carrier that is indicated by the fourth time-frequency resource indication information. Optionally, a frequency of the first carrier is greater than a frequency of the fifth carrier.

[0143] In an optional embodiment, the frequency domain resource of the first carrier that is indicated by the second time-frequency resource indication information includes the frequency domain resource of the first carrier that is indicated by the first time-frequency resource indication information, the frequency domain resource of the first carrier that is indicated by the first time-frequency resource indication information includes the frequency domain resource of the first carrier that is indicated by the third time-frequency resource indication information, the frequency domain resource of the first carrier that is indicated by the third time-frequency resource indication information includes the frequency domain resource of the first carrier that is indicated by the fourth time-frequency resource indication information.

[0144] In an optional embodiment, the carrier indication information is further used to indicate a carrier on which the data that is received by the user equipment according to the second, the third, or the fourth control information is located.

[0145] In an optional embodiment, the carrier indication information includes a carrier index number, and the carrier index number is used to indicate the carrier on which the data that is received by the user equipment according to the second, the third, or the fourth control information is located.

[0146] In an optional embodiment, the third carrier is a primary component carrier.

[0147] In an optional embodiment, the third carrier and the fourth carrier or the fifth carrier are a same carrier.

[0148] FIG. 5 shows a control information receiving apparatus, that is, user equipment, according to an embodiment of the present invention. The user equipment is configured to perform the control information receiving method provided in the embodiment shown in FIG. 4.

[0149] The user equipment includes a receiving unit 501. The receiving unit 501 is configured to receive first control information on a second carrier. The first control information is used by the receiving unit to receive data on a first carrier according to the first control information. Optionally, the first carrier is a high-frequency carrier, and a frequency range of the high-frequency carrier is 3 GHz to 250 GHz. Optionally, the first control information may be at least one of downlink control information, downlink data transmission scheduling information, uplink data transmission scheduling information, or an uplink power control command.

[0150] The receiving unit 501 is further configured to receive the data on the first carrier according to the first control information. Duration of a transmission time interval of the first carrier is less than duration of a transmission time interval of the second carrier.

[0151] Optionally, a frequency of the second carrier is less than a frequency of the first carrier. Optionally, the transmission time interval is a subframe.

[0152] Duration of a transmission time interval of a first carrier is less than duration of a transmission time interval of a second carrier. Therefore, a frequency of the first carrier is greater than a frequency of the second carrier, that is, compared with the second carrier, the first carrier is a high-frequency carrier. A base station sends data on the first carrier, and sends first control information on the second carrier. Because the frequency of the second carrier is less than the frequency of the first carrier, a large-scale loss on the second carrier is less than a large-scale loss on the first carrier. Therefore, the first control information is sent on the second carrier, thereby improving reliability of transmission of the first control information.

[0153] In an optional embodiment, the receiving unit 501 is further configured to receive carrier indication information on a third carrier, where the carrier indication information is used to indicate a carrier on which the data that is received by the user equipment according to the first control information is located. Optionally, the carrier indication information is used to indicate the first carrier.

[0154] In an optional embodiment, the carrier indication information includes a carrier index number, and the carrier index number is used to indicate the carrier on which the data that is received by the receiving unit according to the first control information is located. Optionally, the carrier index number indicates the first carrier.

[0155] In an optional embodiment, the carrier indication information further includes at least one of start transmission time interval information, time window length information, or end transmission time interval information. The start transmission time interval information is used to indicate a start transmission time interval of the data that is received on the first carrier by the receiving unit 501, the end transmission time interval information is used to indicate an end transmission time interval of the data that is received on the first carrier by the receiving unit 501, and the time window length information is used to indicate a range of a transmission time interval occupied by the data that is received on the first carrier by the receiving unit 501.

[0156] In an optional embodiment, the receiving, by the receiving unit 501, the first control information on the second carrier includes: receiving, by the receiving unit 501, the first control information on a control channel of a first transmission time interval of the second carrier. The receiving, by the receiving unit 501, the data on the first carrier according to the first control information includes: receiving, by the receiving unit 501, the data according to the first control information and from the start transmission time interval to the end transmission time interval of the first carrier. The start transmission time interval is a next transmission time interval of a transmission time interval that is of the first carrier and that corresponds to the last symbol occupied by the control channel, and the end transmission time interval is a transmission time interval that is of the first carrier and that corresponds to the last symbol occupied by a control channel of a second transmission time interval, where the second transmission time interval is a next transmission time interval of the first transmission time interval.

[0157] In an optional embodiment, the third carrier is a primary component carrier.

[0158] In an optional embodiment, the third carrier and the first or the second carrier are a same carrier.

[0159] In an optional embodiment, the first control information includes first time-frequency resource indication information, where the first time-frequency resource indication information is used to indicate a time-frequency resource used by the receiving unit 501 to receive the data on the first carrier, and the user equipment further includes:
the receiving unit 501, further configured to receive second control information on a fourth carrier; and the receiving, by the receiving unit 501, the data on the first carrier according to the first control information includes: receiving, by the receiving unit 501, the data on the first carrier according to the first control information and the second control information, where the second control information includes second time-frequency resource indication information, the second time-frequency resource indication information is used to indicate a time-frequency resource used by the receiving unit 501 to receive the data on the first carrier, duration of a transmission time interval of the fourth carrier is greater than the duration of the transmission time interval of the second carrier, and the time-frequency resource of the first carrier that is indicated by the second time-frequency resource indication information includes the time-frequency resource of the first carrier that is indicated by the first time-frequency resource indication information. Optionally, a frequency of the fourth carrier is less than a frequency of the second carrier.

[0160] In an optional embodiment, the user equipment further includes: the receiving unit 501, further configured to send third control information on a fifth carrier. The receiving, by the receiving unit 501, the data on the first carrier according to the first control information includes: receiving, by the receiving unit 501, the data on the first carrier according to the first control information, the second control information, and the third control information, where the third control information includes third time-frequency resource indication information, the third time-frequency resource indication information is used to indicate a time-frequency resource used by the receiving unit 501 to receive the data on the first carrier, duration of a transmission time interval of the fifth carrier is less than the duration of the transmission time interval of the second carrier, and the time-frequency resource of the first carrier that is indicated by the first time-frequency resource indication information includes the time-frequency resource of the first carrier that is indicated by the third time-frequency resource indication information. Optionally, a frequency of the fifth carrier is greater than a frequency of the second carrier.

[0161] In an optional embodiment, the receiving unit 501 is further configured to send fourth control information on the first carrier. The receiving, by the receiving unit 501, the data on the first carrier according to the first control information includes: receiving, by the receiving unit 501, the data on the first carrier according to the first control information, the second control information, the third control information, and the fourth control information, where the fourth control information includes fourth time-frequency resource indication information, the fourth time-frequency resource indication information is used to indicate a time-frequency resource used by the receiving unit 501 to receive the data on the first carrier, and the time-frequency resource of the first carrier that is indicated by the third time-frequency resource indication information includes the time-frequency resource of the first carrier that is indicated by the fourth time-frequency resource indication information. Optionally, a frequency of the first carrier is greater than a frequency of the fifth carrier.

[0162] In an optional embodiment, the frequency domain resource of the first carrier that is indicated by the second time-frequency resource indication information includes the frequency domain resource of the first carrier that is indicated by the first time-frequency resource indication information, the frequency domain resource of the first carrier that is indicated by the first time-frequency resource indication information includes the frequency domain resource of the first carrier that is indicated by the third time-frequency resource indication information, the frequency domain resource of the first carrier that is indicated by the third time-frequency resource indication information includes the frequency domain resource of the first carrier that is indicated by the fourth time-frequency resource indication information.

[0163] In an optional embodiment, the carrier indication information is further used to indicate a carrier on which the data that is received by the receiving unit 501 according to the second, the third, or the fourth control information is located.

[0164] In an optional embodiment, the carrier indication information includes a carrier index number, and the carrier index number is used to indicate the carrier on which the data that is received by the receiving unit 501 according to the second, the third, or the fourth control information is located.

[0165] In an optional embodiment, the third carrier is a primary component carrier.

[0166] In an optional embodiment, the third carrier and the fourth carrier or the fifth carrier are a same carrier.

[0167] In an optional implementation manner, the receiving unit 501 may be a receiver. Alternatively, the receiving unit 501 may be implemented by using a transceiver. The receiver and the transceiver may be a radio frequency circuit or a combination that includes the processor and a radio frequency circuit. The user equipment includes a receiver, configured to receive first control information on a second carrier, where the first control information is used by the receiving unit to receive data on a first carrier according to the first control information, where the receiver is further configured to receive the data on the first carrier according to the first control information, where duration of a transmission time interval of the first carrier is less than duration of a transmission time interval of the second carrier.

[0168] This embodiment of the present invention is described below in more details with reference to specific examples.

[0169] FIG. 6 is a schematic diagram of a carrier for communication between a base station and user equipment according to an embodiment of the present invention.

[0170] Abase station sends first control information on a second carrier CC2. The first control information is used by the base station to send data on a first carrier according to the first control information. The base station sends the data on the first carrier CC1. User equipment receives the first control information on the second carrier CC2. The user equipment receives the data on the first carrier CC1 according to the first control information. Duration of a transmission time interval of the first carrier CC1 is less than duration of a transmission time interval of the second carrier CC2. Optionally, the first carrier CC1 is a high-frequency carrier, and a frequency range of the high-frequency carrier is 3 GHz to 250 GHz. A frequency of the second carrier CC2 is less than the frequency of the first carrier CC1 in step 21. Optionally, the transmission time interval is a subframe.

[0171] Duration of a transmission time interval of a first carrier CC1 is less than duration of a transmission time interval of a second carrier CC2. Therefore, a frequency of the first carrier CC1 is greater than a frequency of the second carrier CC2, that is, compared with the second carrier CC2, the first carrier CC1 is a high-frequency carrier. Abase station sends data on the first carrier CC1, and sends first control information on the second carrier CC2. Because the frequency of the second carrier is less than the frequency of the first carrier CC1, a large-scale loss on the second carrier CC2 is less than a large-scale loss on the first carrier CC1. Therefore, reliability of sending the first control information on the second carrier CC2 is higher than reliability of sending the first control information on the first carrier CC1, thereby improving reliability of transmission of the first control information.

[0172] The duration of the transmission time interval of the second carrier CC2 is greater than the duration of the transmission time interval of the first carrier CC1. As shown in FIG. 6, one transmission time interval of the second carrier CC2 spans 10 transmission time intervals of the first carrier CC1. Therefore, the first control information sent on the second carrier CC2 is to be used to schedule all transmission time intervals of the first carrier CC1 that correspond to the transmission time interval of the second carrier CC2. For example, as shown in FIG. 6, a transmission time interval 0 of the second carrier CC2 spans 10transmission time intervals 0 to 9 of the first carrier CC 1 in the time domain. Therefore, control information that corresponds to data that is sent in the transmission time intervals 0 to 9 of the first carrier CC1 by the base station is to be sent on the transmission time interval 0 of the second carrier CC2. Optionally, respective control information of the data in the transmission time intervals 0 to 9 of the first carrier CC1 may be the same, or may be separately different. Control information being the same means that the data in the transmission time intervals 0 to 9 of the first carrier CC1 may be received by the user equipment according to an instruction of same control information. Control information being different means that data in any transmission time interval of the first carrier CC1 may be received by the user equipment according to an instruction of control information corresponding to the any time interval. For example, data in a transmission time interval of the first carrier CC1 is received by the user equipment according to control information corresponding to the transmission time interval, where i is any integer greater than or equal to 0 and less than or equal to 9. The control information in the transmission time intervals 0 to 9 of the first carrier CC1 may be code division multiplexed to the transmission time interval 0 of the second carrier CC2.

[0173] In an optional embodiment, the base station sends carrier indication information on a third carrier CC3 (not shown in FIG. 6). The carrier indication information is used to indicate a carrier on which the data that is sent by the base station according to the first control information is located. In an optional embodiment, the carrier indication information is used to indicate the first carrier CC1. The carrier indication information may be in a format of a byte stream, that is, in a form of a bitmap, or in a representation form of a binomial, for example, a best-M method. Optionally, a format of control information that is on a low-frequency carrier and that is used to schedule transmission data of a high-frequency carrier may be different from a format of control information that is on the low-frequency carrier and that is used to schedule transmission data of the low-frequency carrier.

[0174] In an optional embodiment, the carrier indication information includes a carrier index number, and the carrier index number is used to indicate the carrier on which the data that is sent by the base station according to the first control information is located. Optionally, the carrier index number is used to indicate the first carrier CC1. In an optional embodiment, the third carrier CC3 is a primary component carrier.

[0175] In an optional embodiment, the third carrier CC3 and the first carrier CC1 or the second carrier CC2 are a same carrier. The base station may also send the carrier indication information on the first carrier CC1 or the second carrier CC2.

[0176] In an optional embodiment, the first control information includes first time-frequency resource indication information, where the first time-frequency resource indication information is used to indicate a time-frequency resource used by the base station to send the data on the first carrier. The base station sends second control information on a fourth carrier CC4. The user equipment receives the second control information on the fourth carrier CC4. The base station sends the data on the first carrier according to the first control information and the second control information. The user equipment receives the data on the first carrier according to the first control information and the second control information. The second control information includes second time-frequency resource indication information, and the second time-frequency resource indication information is used to indicate a time-frequency resource used by the base station to send the data on the first carrier. Duration of a transmission time interval of the fourth carrier CC4 is greater than the duration of the transmission time interval of the second carrier CC2. The time-frequency resource of the first carrier that is indicated by the second time-frequency resource indication information includes the time-frequency resource of the first carrier that is indicated by the first time-frequency resource indication information. As shown in FIG. 6, the second control information in a transmission time interval 0 of the fourth carrier CC4 is to be used by the user equipment to receive data in 20 transmission time intervals of the first carrier CC1. The first control information in a transmission time interval 0 of the second carrier CC2 is to be used by the user equipment to receive data in 10 transmission time intervals of the first carrier CC1. The time-frequency resource of the first carrier that is indicated by the second time-frequency resource indication information includes the time-frequency resource of the first carrier that is indicated by the first time-frequency resource indication information. Optionally, a frequency of the fourth carrier CC4 is less than the frequency of the second carrier CC2.

[0177] In an optional embodiment, the base station sends third control information on a fifth carrier CC5. The user equipment receives the third control information on the fifth carrier CC5. The base station sends the data on the first carrier according to the first control information, the second control information, and the third control information. The user equipment receives the data on the first carrier according to the first control information, the second control information, and the third control information. The third control information includes third time-frequency resource indication information, and the third time-frequency resource indication information is used to indicate a time-frequency resource used by the base station to send the data on the first carrier. Duration of a transmission time interval of the fifth carrier CC5 is less than the duration of the transmission time interval of the second carrier CC2, and the time-frequency resource of the first carrier that is indicated by the first time-frequency resource indication information includes the time-frequency resource of the first carrier that is indicated by the third time-frequency resource indication information. As shown in FIG. 6, the third control information in a transmission time interval 0 of the fifth carrier CC5 is to be used by the user equipment to receive data in two transmission time intervals of the first carrier CC1. The first control information in a transmission time interval 0 of the second carrier CC2 is to be used by the user equipment to receive data in 10 transmission time intervals of the first carrier CC1. The time-frequency resource of the first carrier that is indicated by the first time-frequency resource indication information includes the time-frequency resource of the first carrier that is indicated by the third time-frequency resource indication information. Optionally, the frequency of the second carrier CC2 is less than a frequency of the fifth carrier CC5.

[0178] In an optional embodiment, the base station sends fourth control information on the first carrier CC1. The user equipment receives the fourth control information on the first carrier CC1. The base station sends the data on the first carrier according to the first control information, the second control information, the third control information, and the fourth control information. The user equipment receives the data on the first carrier according to the first control information, the second control information, the third control information, and the fourth control information. The fourth control information includes fourth time-frequency resource indication information, and the fourth time-frequency resource indication information is used to indicate a time-frequency resource used by the base station to send the data on the first carrier CC1. As shown in FIG. 6, the fourth control information in a transmission time interval 0 of the first carrier CC1 is to be used by the user equipment to receive data in one transmission time interval of the first carrier CC1. The third control information in a transmission time interval 0 of the fourth carrier CC4 is to be used by the user equipment to receive data in two transmission time intervals of the first carrier CC1. The time-frequency resource of the first carrier CC1 that is indicated by the third time-frequency resource indication information includes the time-frequency resource of the first carrier CC1 that is indicated by the fourth time-frequency resource indication information. Optionally, the frequency of the fourth carrier CC4 is less than the frequency of the first carrier CC1.

[0179] In an optional embodiment, the frequency domain resource of the first carrier CC1 that is indicated by the second time-frequency resource indication information includes the frequency domain resource of the first carrier CC1 that is indicated by the first time-frequency resource indication information. The frequency domain resource of the first carrier CC1 that is indicated by the first time-frequency resource indication information includes the frequency domain resource of the first carrier CC1 that is indicated by the third time-frequency resource indication information. The frequency domain resource of the first carrier CC1 that is indicated by the third time-frequency resource indication information includes the frequency domain resource of the first carrier CC1 that is indicated by the fourth time-frequency resource indication information. In this embodiment, the transmission time interval of the fourth carrier CC4 is greater than the transmission time interval of the second carrier CC2, the transmission time interval of the second carrier CC2 is greater than the transmission time interval of the fifth carrier CC5, and the transmission time interval of the fifth carrier CC5 is greater than the transmission time interval of the first carrier CC1. That is, the frequency of the fourth carrier CC4 is less than the frequency of the second carrier CC2, the frequency of the second carrier CC2 is less than the frequency of the fifth carrier CC5, and the frequency of the fifth carrier CC5 is less than the frequency of the first carrier CC1. Therefore, coverage and signal transmission reliability of the fourth carrier CC4 are greater than coverage and signal transmission reliability of the second carrier CC2, the coverage and signal transmission reliability of the second carrier CC2 are greater than coverage and signal transmission reliability of the fifth carrier CC5, and the coverage and signal transmission reliability of the fifth carrier CC5 are greater than coverage and signal transmission reliability of the first carrier CC1.

[0180] The foregoing design of transmitting, on multiple low-frequency carriers, control information of transmission data of a high-frequency carrier improves reliability and coverage of transmission of a control channel of a high-frequency carrier. In addition, considering an advantage that a time delay of signal transmission of a high-frequency carrier is low while a data transmission rate is high, the base station may configure different control information transmission carriers for different users. For example, for a cell center user whose channel transmission quality is relatively good, because signal transmission quality of the user is relatively good, the base station may configure that control information of transmission data of the user on the high-frequency carrier is transmitted on the high-frequency carrier. However, for a cell edge user whose channel transmission quality is relatively poor, because reliability of signal transmission of the user on the high-frequency carrier is relatively poor, the base station may configure that control information of transmission data of the user on the high-frequency carrier is transmitted on one or more low-frequency carriers. When the control information of the transmission data of the high-frequency carrier is transmitted on multiple low-frequency carriers, control information of the transmission data of the high-frequency carrier on the low-frequency carriers are differentially designed. That is, a frequency domain resource corresponding to the control information of the transmission data of the high-frequency carrier on a second low-frequency carrier is a subset of a frequency domain resource corresponding to the control information of the transmission data of the high-frequency carrier on a first low-frequency carrier. Compared with a control information indication manner in which bandwidths of an entire system are used as a universal set of frequency domain resources, a control information indication manner of transmission data of the high-frequency carrier on the second low-frequency carrier greatly reduces control signaling overheads.

[0181] When the control information of the transmission data of the high-frequency carrier is transmitted on multiple low-frequency carriers, optionally, the control information of the transmission data of the high-frequency carrier that is sent on the low-frequency carriers by the user may be completely the same. The user equipment combines and receives control information according to maximum control information that can be detected by the user equipment on the carriers. At the same time, the user feeds back, to the base station, a number of a carrier on which the control information is received. Therefore, coverage of the control information of the transmission data of the high-frequency carrier is maximally improved.

[0182] Optionally, the embodiment of FIG. 6 merely shows, by using examples, the control information of the data of the first carrier CC1 that is sent by the base station on the second carrier CC2, the fourth carrier CC4, and the fifth carrier CC5. A quantity of low-frequency carriers of the control information of the data of the first carrier CC1 that is sent by the base station is not limited in the present invention.

[0183] In an optional embodiment, the carrier indication information that is sent on the third carrier CC3 by the base station is further used to indicate the carrier on which the data that is sent by the base station according to the second control information, the third control information, or the fourth control information is located. In an optional embodiment, the carrier index number is used to indicate the carrier on which the data that is sent by the base station according to the second, the third or the fourth control information is located.

[0184] In an optional embodiment, the third carrier is a primary component carrier, and the first carrier, the second carrier, the fourth carrier, and the fifth carrier are secondary component carriers. In an optional embodiment, the third carrier and the first, the second, the fourth or the fifth carrier are a same carrier. That is, the primary component carrier may be any carrier. For example, the first carrier, the second carrier, the fourth carrier, or the fifth carrier is a primary component carrier.

[0185] FIG. 7 is a schematic diagram of communication on a carrier between a base station and user equipment according another embodiment of the present invention. The carrier indication information further includes at least one of start transmission time interval information, time window length information, or end transmission time interval information. The start transmission time interval information is used to indicate a start transmission time interval of the data that is sent on the first carrier CC1 by the base station. The end transmission time interval information is used to indicate an end transmission time interval of the data that is sent on the first carrier CC 1 by the base station. The time window length information is used to indicate a range of a transmission time interval occupied by the data that is sent on the first carrier CC1 by the base station. The base station sends the first control information on a control channel of a first transmission time interval of the second carrier. The base station sends the data according to the first control information and from the start transmission time interval to the end transmission time interval of the first carrier. The start transmission time interval is a next transmission time interval of a transmission time interval that is of the first carrier and that corresponds to the last symbol occupied by the control channel. The end transmission time interval is a transmission time interval that is of the first carrier and that corresponds to the last symbol occupied by a control channel of a second transmission time interval. The second transmission time interval is a next transmission time interval of the first transmission time interval.

[0186] Specifically, in the embodiment of FIG. 7, the base station sends control information in a TTI 0 of a second carrier CC2 that is of a low frequency compared with the first carrier CC1. The base station sends data in a TTI 2 to a TTI n of the high-frequency first carrier CC1 according to the control information, where n is a natural number. The user equipment receives the control information in the TTI 0 of the second carrier CC2. The user equipment receives the data in the TTI 2 to the TTI n of the first carrier CC1 according to the control information. The TTI 2 of the first carrier CC1 is a next TTI of a TTI 1 that is of the first carrier CC1 and that corresponds to the last symbol of a physical downlink control channel (PDCCH) of the TTI 0 of the second carrier. The TTI 2 of the first carrier CC1 is a start TTI in which the base station sends the data according to the control information. The TTI n of the first carrier CC1 is a TTI corresponding to the last symbol of a PDCCH of a TTI 1 of the second carrier CC2. The TTI n of the first carrier CC1 is an end TTI in which the base station sends the data according to the control information. The time window length information indicates a range of a transmission time interval, that is, the TTI 2 to the TTI n, occupied by the data that is sent by the base station on the first carrier CC1. For example, the time window length information includes TTI quantity information. For example, the TTI quantity information is used to indicate that a quantity of TTIs occupied by the TTI 2 to the TTI n is n-1.

[0187] FIG. 8 is a control information receiving method according to an embodiment of the present invention. The method includes the following steps.

[0188] Step 81: A base station sends first data in a first transmission time interval of a first carrier.

[0189] Step 82: The base station receives, in a first time unit of a second transmission time interval of a second carrier, first acknowledgment information sent by user equipment. The first acknowledgment information is used to indicate whether the user equipment correctly receives the first data, and duration of the first transmission time interval of the first carrier is less than duration of the second transmission time interval of the second carrier. Optionally, the first acknowledgment information is acknowledgment (ACK) information or negative acknowledgment (NACK) information.

[0190] In an optional embodiment, the base station receives the first acknowledgment information in a second time unit of the second transmission time interval of the second carrier, where the first acknowledgment information is used to indicate whether the user equipment correctly receives the first data, and the second time unit and the first time unit are different time units.

[0191] In an optional embodiment, the base station sends second data in a third transmission time interval of the first carrier, where the third transmission time interval and the first transmission time interval are different transmission time intervals; and the base station receives second acknowledgment information in the first time unit of the second transmission time interval of the second carrier, where the second acknowledgment information is used to indicate whether the user equipment correctly receives the second data. Optionally, the base station receives one acknowledgment message in the first time unit of the second transmission time interval of the second carrier. The acknowledgment message includes the first acknowledgment information and the second acknowledgment information.

[0192] In an optional embodiment, the first carrier is a downlink carrier, and the second carrier is an uplink carrier.

[0193] FIG. 9 shows a control information transmission apparatus, that is, a base station, according to an embodiment of the present invention. The base station is configured to perform the control information transmission method in the embodiment of FIG. 8. The base station includes a sending unit 901 and a receiving unit 902. The sending unit 901 is configured to send first data in a first transmission time interval of a first carrier. The receiving unit 902 is configured to receive, in a first time unit of a second transmission time interval of a second carrier, first acknowledgment information sent by user equipment, where the first acknowledgment information is used to indicate whether the user equipment correctly receives the first data, and the first transmission time interval of the first carrier is less than the second transmission time interval of the second carrier.

[0194] In an optional embodiment, the receiving unit 902 receives the first acknowledgment information in a second time unit of the second transmission time interval of the second carrier, where the first acknowledgment information is used to indicate whether the user equipment correctly receives the first data, and the second time unit and the first time unit are different time units.

[0195] In an optional embodiment, the sending unit 901 sends second data in a third transmission time interval of the first carrier, where the third transmission time interval and the first transmission time interval are different transmission time intervals. The receiving unit 902 receives second acknowledgment information in the first time unit of the second transmission time interval of the second carrier, where the second acknowledgment information is used to indicate whether the user equipment correctly receives the second data. Optionally, the receiving unit 902 receives one acknowledgment message in the first time unit of the second transmission time interval of the second carrier. The acknowledgment message includes the first acknowledgment information and the second acknowledgment information.

[0196] In an optional embodiment, the first carrier is a downlink carrier, and the second carrier is an uplink carrier.

[0197] In an optional implementation manner, the receiving unit 902 may be a receiver (receiver), and the sending unit 901 may be a transmitter. Alternatively, the receiving unit 902 and the sending unit 901 may be implemented by using a transceiver. The receiver, the transmitter, and the transceiver may be a radio frequency circuit or a combination that includes the processor and a radio frequency circuit. The base station includes a receiver and a transmitter. The transmitter is configured to send the first data in the first transmission time interval of the first carrier. The receiver is configured to receive, in the first time unit of the second transmission time interval of the second carrier, the first acknowledgment information sent by the user equipment. The first acknowledgment information is used to indicate whether the user equipment correctly receives the first data. The first transmission time interval of the first carrier is less than the second transmission time interval of the second carrier.

[0198] FIG. 10 is a control information transmission method according to an embodiment of the present invention. The method includes the following specific steps.

[0199] Step 101 :User equipment receives first data in a first transmission time interval of a first carrier.

[0200] Step 102: The user equipment sends first acknowledgment information in a first time unit of a second transmission time interval of a second carrier. The first acknowledgment information is used to indicate whether the user equipment correctly receives the first data, and duration of the first transmission time interval of the first carrier is less than duration of the second transmission time interval of the second carrier. Optionally, the first acknowledgment information is ACK information or NACK information.

[0201] In an optional embodiment, the user equipment sends the first acknowledgment information in a second time unit of the second transmission time interval of the second carrier, where the first acknowledgment information is used to indicate whether the user equipment correctly receives the first data, and the second time unit and the first time unit are different time units.

[0202] In an optional embodiment, the user equipment receives second data in a third transmission time interval of the first carrier, where the third transmission time interval and the first transmission time interval are different transmission time intervals. The user equipment receives second acknowledgment information in the first time unit of the second transmission time interval of the second carrier, where the second acknowledgment information is used to indicate whether the user equipment correctly receives the second data. Optionally, the user equipment sends one acknowledgment message in the first time unit of the second transmission time interval of the second carrier. The acknowledgment message includes the first acknowledgment information and the second acknowledgment information.

[0203] In an optional embodiment, the first carrier is a downlink carrier, and the second carrier is an uplink carrier.

[0204] FIG. 11 shows a control information transmission apparatus, that is, user equipment, according to an embodiment of the present invention. The user equipment is configured to perform the control information transmission method in the embodiment of FIG. 10. The user equipment includes a receiving unit 1101 and a sending unit 1102.

[0205] The receiving unit 1101 is configured to receive first data in a first transmission time interval of a first carrier.

[0206] The sending unit 1102 is configured to send first acknowledgment information in a first time unit of a second transmission time interval of a second carrier, where the first acknowledgment information is used to indicate whether the receiving unit correctly receives the first data, and the first transmission time interval of the first carrier is less than the second transmission time interval of the second carrier.

[0207] In an optional embodiment, the sending unit is further configured to send the first acknowledgment information in a second time unit of the second transmission time interval of the second carrier, where the first acknowledgment information is used to indicate whether the receiving unit correctly receives the first data, and the second time unit and the first time unit are different time units.

[0208] In an optional embodiment, the receiving unit is further configured to receive second data in a third transmission time interval of the first carrier, where the third transmission time interval and the first transmission time interval are different transmission time intervals. The sending unit is further configured to send second acknowledgment information in the first time unit of the second transmission time interval of the second carrier, where the second acknowledgment information is used to indicate whether the receiving unit correctly receives the second data. Optionally, the sending unit 1102 sends one acknowledgment message in the first time unit of the second transmission time interval of the second carrier. The acknowledgment message includes the first acknowledgment information and the second acknowledgment information.

[0209] In an optional embodiment, the first carrier is a downlink carrier, and the second carrier is an uplink carrier.

[0210] In an optional implementation manner, the receiving unit 1101 may be a receiver, and the sending unit 1102 may be a transmitter. Alternatively, the receiving unit 1101 and the sending unit 1102 may be implemented by using a transceiver. The receiver, the transmitter, and the transceiver may be a radio frequency circuit or a combination that includes the processor and a radio frequency circuit. The user equipment includes a receiver and a transmitter. The receiver is configured to receive the first data in the first transmission time interval of the first carrier. The transmitter is configured to send the first acknowledgment information in the first time unit of the second transmission time interval of the second carrier. The first acknowledgment information is used to indicate whether the receiving unit correctly receives the first data. The first transmission time interval of the first carrier is less than the second transmission time interval of the second carrier.

[0211] FIG. 12 is a schematic diagram of control information transmission according to an embodiment of the present invention.

[0212] A base station sends first data in a first transmission time interval TTI 1 of a first carrier CC1. User equipment receives the first data. The user equipment sends first acknowledgment information in a first time unit 1 of a second transmission time interval of a second carrier CC2. The base station receives, in the first time unit of the second transmission time interval of the second carrier CC2, the first acknowledgment information sent by the user equipment. The first acknowledgment information is used to indicate whether the user equipment correctly receives the first data. Duration of the first transmission time interval of the first carrier CC1 is less than duration of the second transmission time interval of the second carrier CC2. The time unit may be an orthogonal frequency division multiplexing (OFDM) symbol.

[0213] FIG. 13 is a schematic diagram of control information transmission according to another embodiment of the present invention. Differences of the embodiment of FIG. 13 from the embodiment of FIG. 12 lie in that the base station sends data in a TTI 1 to a TTI 4 of the first carrier CC1, and after the user equipment receives the data in the TTI 1 to the TTI 4 of the first carrier CC1, the user equipment sends the first acknowledgment information in a time unit 1, a time unit 2, and a time unit 8 of the second transmission time interval of the second carrier CC2, where the first acknowledgment information is used to indicate whether the user equipment correctly receives the data in the TTI 1 of the first carrier CC1, and the time unit 2, the time unit 8, and the time unit 1 are different time units. Optionally, the first acknowledgment information may be sent in one or more time units of a transmission time unit of the second carrier CC2. The user equipment sends second acknowledgment information in a time unit 9 of the second transmission time interval of the second carrier CC2. The second acknowledgment information is used to indicate whether the user equipment correctly receives the data in the TTI 2 of the first carrier CC1. The user equipment sends third acknowledgment information in time units 6 and 13 of the second transmission time interval of the second carrier CC2. The third acknowledgment information is used to indicate whether the user equipment correctly receives the data in the TTI 3 of the first carrier CC1. The user equipment sends fourth acknowledgment information in time units 7 and 14 of the second transmission time interval of the second carrier CC2. The fourth acknowledgment information is used to indicate whether the user equipment correctly receives the data in the TTI 4 of the first carrier CC 1.

[0214] FIG. 14 is a schematic diagram of a carrier for control information transmission according to still another embodiment of the present invention. Differences of the embodiment of FIG. 14 from the embodiment of FIG. 12 lie in that the base station sends data in a TTI 1 to a TTI 10 of the first carrier CC1, and after the user equipment receives the data in the TTI 1 to the TTI 10 of the first carrier CC1, the user equipment sends the first acknowledgment information in a time unit 1 of the second transmission time interval of the second carrier CC2, where the first acknowledgment information is used to indicate whether the user equipment correctly receives the data in the TTI 1 of the first carrier CC1. The user equipment sends second acknowledgment information in a time unit 2 of the second transmission time interval of the second carrier CC2. The second acknowledgment information is used to indicate whether the user equipment correctly receives the data in the TTI 2 of the first carrier CC1. The user equipment sends third acknowledgment information in a time unit 6 of the second transmission time interval of the second carrier CC2. The third acknowledgment information is used to indicate whether the user equipment correctly receives the data in the TTI 3 of the first carrier CC1. The user equipment sends fourth acknowledgment information in a time unit 7 of the second transmission time interval of the second carrier CC2. The fourth acknowledgment information is used to indicate whether the user equipment correctly receives the data in the TTI 4 and the TT5 of the first carrier CC1. The user equipment sends fifth acknowledgment information in a time unit 8 of the second transmission time interval of the second carrier CC2. The fifth acknowledgment information is used to indicate whether the user equipment correctly receives the data in the TTI 6 of the first carrier CC1. The user equipment sends sixth acknowledgment information in a time unit 9 of the second transmission time interval of the second carrier CC2. The sixth acknowledgment information is used to indicate whether the user equipment correctly receives the data in the TTI 7 of the first carrier CC1. The user equipment sends seventh acknowledgment information in a time unit 13 of the second transmission time interval of the second carrier CC2. The seventh acknowledgment information is used to indicate whether the user equipment correctly receives the data in the TTI 8 of the first carrier CC1. The user equipment sends eighth acknowledgment information in a time unit 14 of the second transmission time interval of the second carrier CC2. The eighth acknowledgment information is used to indicate whether the user equipment correctly receives the data in the TTI 9 and the TTI 10 of the first carrier CC1.

[0215] In all the foregoing embodiments, control information of data that is sent by a base station on a high-frequency carrier is transmitted on a low-frequency carrier, so as to improve transmission reliability and transmission quantity of the control information. Duration of a transmission time interval of the high-frequency carrier is less than duration of a transmission time interval of the low-frequency carrier. In another embodiment of the present invention, the control information of the data that is sent by the base station on the high-frequency carrier is sent on the high-frequency carrier. To enhance transmission reliability of the control information sent on the high-frequency carrier, bundling transmission of the control information is performed in multiple TTIs. The control information transmitted in the multiple TTIs may be same control information repeatedly transmitted for multiple times. The base station configures, for a user, different quantities of TTIs for bundling transmission of control information, that is, a control information multiple-TTI bundling transmission solution specified by a user. Correspondingly, an aggregation level supported by each user equipment, including a lowest aggregation level, can be flexibly configured according to a quantity of bundling TTIs of control information that is specified by the user. For example, in order not to increase a quantity of times of blind detection by the user, when bundling transmission of control information is performed in multiple TTIs, a control format supported by the user equipment is different from a control format during non-bundling transmission. For example, a lowest aggregation level that is supported by the user equipment during bundling transmission in multiple TTIs is greater than a lowest aggregation level during non-bundling transmission. Specifically, a lowest aggregation level that can be supported by bundling transmission of multiple TTIs is related to a quantity of bundling TTIs of control information that is configured by the base station. For example, when the quantity of bundling TTIs is 1, corresponding lowest aggregation levels of the user equipment in different scenarios are separately 1 and 2. When the quantity of bundling TTIs is N, and N is a natural number, the corresponding lowest aggregation levels of the user equipment in different scenarios are separately extended to 1×N and 2×N.

[0216] Without conflicts, the embodiments in the present invention and the features in the embodiments may be mutually combined.

[0217] The foregoing descriptions are merely specific implementation manners of the present invention, but are not intended to limit the protection scope of the present invention. Any variation or replacement readily figured out by a person skilled in the art within the technical scope disclosed in the present invention shall fall within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.


Claims

1. A control information transmission method, comprising:

sending, by a base station, first control information on a second carrier, wherein the first control information is used by the base station to send data on a first carrier according to the first control information; and

sending, by the base station, the data on the first carrier according to the first control information, wherein

duration of a transmission time interval of the first carrier is less than duration of a transmission time interval of the second carrier;

wherein the method is characterized by:

sending, by the base station, carrier indication information on a third carrier, wherein the carrier indication information is used to indicate a carrier on which the data that is sent by the base station according to the first control information is located; and

wherein the first control information comprises first time-frequency resource indication information, the first time-frequency resource indication information is used to indicate a time-frequency resource used by the base station to send the data on the first carrier;

sending, by the base station, second control information on a fourth carrier; and

the sending, by the base station, the data on the first carrier according to the first control information comprises: sending, by the base station, the data on the first carrier according to the first control information and the second control information, wherein the second control information comprises second time-frequency resource indication information, the second time-frequency resource indication information is used to indicate a time-frequency resource used by the base station to send the data on the first carrier, duration of a transmission time interval of the fourth carrier is greater than the duration of the transmission time interval of the second carrier, and the time-frequency resource of the first carrier that is indicated by the second time-frequency resource indication information comprises the time-frequency resource of the first carrier that is indicated by the first time-frequency resource indication information.


 
2. The method according to claim 1, wherein the carrier indication information comprises a carrier index number, and the carrier index number is used to indicate the carrier on which the data that is sent by the base station according to the first control information is located.
 
3. The method according to claim 1 or 2, wherein the carrier indication information further comprises at least one of start transmission time interval information, time window length information, or end transmission time interval information, wherein
the start transmission time interval information is used to indicate a start transmission time interval of the data that is sent on the first carrier by the base station, the end transmission time interval information is used to indicate an end transmission time interval of the data that is sent on the first carrier by the base station, and the time window length information is used to indicate a range of a transmission time interval occupied by the data that is sent on the first carrier by the base station.
 
4. Abase station, comprising:

a sending unit (301), configured to send first control information on a second carrier, wherein the first control information is used by the base station to send data on a first carrier according to the first control information, wherein

the sending unit (301) is further configured to send the data on the first carrier according to the first control information; wherein

duration of a transmission time interval of the first carrier is less than duration of a transmission time interval of the second carrier;

characterized in that:

the sending unit (301) is further configured to send carrier indication information on a third carrier, wherein the carrier indication information is used to indicate a carrier on which the data that is sent by the sending unit (301) according to the first control information is located; and

wherein the first control information comprises first time-frequency resource indication information, the first time-frequency resource indication information is used to indicate a time-frequency resource used by the sending unit (301) to send the data on the first carrier;

the sending unit (301) is further configured to send second control information on a fourth carrier; and

the sending, by the sending unit (301), the data on the first carrier according to the first control information comprises: the sending unit (301) is configured to send the data on the first carrier according to the first control information and the second control information, wherein the second control information comprises second time-frequency resource indication information, the second time-frequency resource indication information is used to indicate a time-frequency resource used by the sending unit (301) to send the data on the first carrier, duration of a transmission time interval of the fourth carrier is greater than the duration of the transmission time interval of the second carrier, and the time-frequency resource of the first carrier that is indicated by the second time-frequency resource indication information comprises the time-frequency resource of the first carrier that is indicated by the first time-frequency resource indication information..


 
5. The base station according to claim 4, wherein the carrier indication information comprises a carrier index number, and the carrier index number is used to indicate the carrier on which the data that is sent by the base station according to the first control information is located.
 
6. The base station according to claim 4 or 5, wherein the carrier indication information further comprises at least one of start transmission time interval information, time window length information, or end transmission time interval information, wherein
the start transmission time interval information is used to indicate a start transmission time interval of the data that is sent on the first carrier by the sending unit (301), the end transmission time interval information is used to indicate an end transmission time interval of the data that is sent on the first carrier by the sending unit (301), and the time window length information is used to indicate a range of a transmission time interval occupied by the data that is sent on the first carrier by the sending unit (301).
 
7. A control information receiving method, comprising:

receiving, by user equipment, first control information on a second carrier, wherein the first control information is used by the user equipment to receive data on a first carrier according to the first control information; and

receiving, by the user equipment, the data on the first carrier according to the first control information, wherein

duration of a transmission time interval of the first carrier is less than duration of a transmission time interval of the second carrier;

wherein the method is characterized by:

receiving, by the user equipment, carrier indication information on a third carrier, wherein the carrier indication information is used to indicate a carrier on which the data that is received by the user equipment according to the first control information is located; and

wherein the first control information comprises first time-frequency resource indication information, the first time-frequency resource indication information is used to indicate a time-frequency resource used by the user equipment to receive the data on the first carrier;

receiving, by the user equipment, second control information on a fourth carrier; and

the receiving, by the user equipment, the data on the first carrier according to the first control information comprises: receiving, by the user equipment, the data on the first carrier according to the first control information and the second control information, wherein the second control information comprises second time-frequency resource indication information, the second time-frequency resource indication information is used to indicate a time-frequency resource used by the user equipment to receive the data on the first carrier, duration of a transmission time interval of the fourth carrier is greater than the duration of the transmission time interval of the second carrier, and the time-frequency resource of the first carrier that is indicated by the second time-frequency resource indication information comprises the time-frequency resource of the first carrier that is indicated by the first time-frequency resource indication information..


 
8. The method according to claim 7, wherein the carrier indication information comprises a carrier index number, and the carrier index number is used to indicate the carrier on which the data that is received by the user equipment according to the first control information is located.
 
9. The method according to claim 7 or 8, wherein the carrier indication information further comprises at least one of start transmission time interval information, time window length information, or end transmission time interval information, wherein
the start transmission time interval information is used to indicate a start transmission time interval of the data that is received on the first carrier by the user equipment, the end transmission time interval information is used to indicate an end transmission time interval of the data that is received on the first carrier by the user equipment, and the time window length information is used to indicate a range of a transmission time interval occupied by the data that is received on the first carrier by the user equipment.
 
10. User equipment, comprising:

a receiving unit (501), configured to receive first control information on a second carrier, wherein the first control information is used by the receiving unit (501) to receive data on a first carrier according to the first control information, wherein

the receiving unit (501) is further configured to receive the data on the first carrier according to the first control information, wherein

duration of a transmission time interval of the first carrier is less than duration of a transmission time interval of the second carrier;

characterized in that:

the receiving unit (501) is configured to receive carrier indication information on a third carrier, wherein the carrier indication information is used to indicate a carrier on which the data that is received by the user equipment according to the first control information is located; and

wherein the first control information comprises first time-frequency resource indication information, the first time-frequency resource indication information is used to indicate a time-frequency resource used by the receiving unit (501) to receive the data on the first carrier;

the receiving unit (501) is further configured to receive second control information on a fourth carrier; and

the receiving, by the receiving unit (501), the data on the first carrier according to the first control information comprises: the receiving unit (501) is configured to receive the data on the first carrier according to the first control information and the second control information, wherein the second control information comprises second time-frequency resource indication information, the second time-frequency resource indication information is used to indicate a time-frequency resource used by the receiving unit (501) to receive the data on the first carrier, duration of a transmission time interval of the fourth carrier is greater than the duration of the transmission time interval of the second carrier, and the time-frequency resource of the first carrier that is indicated by the second time-frequency resource indication information comprises the time-frequency resource of the first carrier that is indicated by the first time-frequency resource indication information.


 
11. The user equipment according to claim 10, wherein the carrier indication information comprises a carrier index number, and the carrier index number is used to indicate the carrier on which the data that is received by the receiving unit (501) according to the first control information is located.
 
12. The user equipment according to claim 10 or 11, wherein the carrier indication information further comprises at least one of start transmission time interval information, time window length information, or end transmission time interval information, wherein
the start transmission time interval information is used to indicate a start transmission time interval of the data that is received on the first carrier by the receiving unit (501), the end transmission time interval information is used to indicate an end transmission time interval of the data that is received on the first carrier by the receiving unit (501), and the time window length information is used to indicate a range of a transmission time interval occupied by the data that is received on the first carrier by the receiving unit (501).
 


Ansprüche

1. Steuerinformationsübertragungsverfahren, umfassend:

Senden, durch eine Basisstation, erster Steuerinformationen auf einem zweiten Träger, wobei die ersten Steuerinformationen von der Basisstation verwendet werden, um Daten auf einem ersten Träger gemäß den ersten Steuerinformationen zu senden; und

Senden, durch die Basisstation, der Daten auf dem ersten Träger, gemäß den ersten Steuerinformationen, wobei

eine Dauer eines Übertragungszeitintervalls des ersten Trägers kleiner ist als eine Dauer eines Übertragungszeitintervalls des zweiten Trägers;

wobei das Verfahren gekennzeichnet ist durch:

Senden, durch die Basisstation, von Trägerangabeinformationen eines dritten Trägers, wobei die Trägerangabeinformationen verwendet werden, um einen Träger anzugeben, auf dem sich Daten, die von der Basisstation gemäß den ersten Steuerinformationen gesendet werden, befinden; und

wobei die ersten Steuerinformationen erste Zeitfrequenz-Ressourcenangabeinformationen umfassen, wobei die ersten Zeitfrequenz-Ressourcenangabeinformationen verwendet werden, um eine Zeitfrequenzressource anzugeben, die von der Basisstation verwendet wird, um die Daten auf dem ersten Träger zu senden;

Senden, durch die Basisstation, zweiter Steuerinformationen auf einem vierten Träger; und das Senden, durch die Basisstation, der Daten auf dem ersten Träger gemäß den ersten Steuerinformationen umfasst: Senden, durch die Basisstation, der Daten auf dem ersten Träger gemäß den ersten Steuerinformationen und den zweiten Steuerinformationen, wobei die zweiten Steuerinformationen zweite Zeitfrequenz-Ressourcenangabeinformationen umfassen, wobei die zweiten Zeitfrequenz-Ressourcenangabeinformationen verwendet werden, um eine Zeitfrequenzressource anzugeben, die von der Basisstation verwendet wird, um die Daten auf dem ersten Träger zu senden, wobei die Dauer eines Übertragungszeitintervalls des vierten Trägers größer ist als die Dauer des Übertragungszeitintervalls des zweiten Trägers, und die Zeitfrequenzressource des ersten Trägers, die von den zweiten Zeitfrequenz-Ressourcenangabeinformationen angegeben wird, umfasst die Zeitfrequenzressource des ersten Trägers, die von den ersten Zeitfrequenz-Ressourcenangabeinformationen angegeben wird.


 
2. Verfahren nach Anspruch 1, wobei die Trägerangabeinformationen eine Trägerindexnummer umfassen, und die Trägerindexnummer verwendet wird, um den Träger anzugeben, auf dem sich die Daten, die von der Basisstation gemäß den ersten Steuerinformationen gesendet werden, befinden.
 
3. Verfahren nach Anspruch 1 oder 2, wobei die Trägerangabeinformationen ferner Start-Übertragungszeitintervallinformationen, Zeitfensterlängeninformationen und/oder End-Übertragungszeitintervallinformationen umfassen, wobei die Start-Übertragungszeitintervallinformationen verwendet werden, um ein Start-Übertragungszeitintervall der Daten, die auf dem ersten Träger von der Basisstation gesendet werden, anzugeben, die End-Übertragungszeitintervallinformationen verwendet werden, um ein End-Übertragungszeitintervall der Daten, die auf dem ersten Träger von der Basisstation gesendet werden, anzugeben, und die Zeitfensterlängeninformationen verwendet werden, um einen Bereich eines Übertragungszeitintervalls anzugeben, der von den Daten, die auf dem ersten Träger von der Basisstation gesendet werden, belegt wird.
 
4. Basisstation, umfassend:

eine Sendeeinheit (301), die konfiguriert ist, erste Steuerinformationen auf einem zweiten Träger zu senden, wobei die ersten Steuerinformationen von der Basisstation verwendet werden, um Daten auf einem ersten Träger gemäß den ersten Steuerinformationen zu senden, wobei

die Sendeeinheit (301) ferner konfiguriert ist, die Daten auf dem ersten Träger gemäß den ersten Steuerinformationen zu senden; wobei

eine Dauer eines Übertragungszeitintervalls des ersten Trägers kleiner ist als eine Dauer eines Übertragungszeitintervalls des zweiten Trägers; dadurch gekennzeichnet, dass:

die Sendeeinheit (301) ferner konfiguriert ist, Trägerangabeinformationen auf einem dritten Träger zu senden, wobei die Trägerangabeinformationen verwendet werden, um einen Träger anzugeben, auf dem sich Daten, die von der Sendeeinheit (301) gemäß den ersten Steuerinformationen gesendet werden, befinden; und

wobei die ersten Steuerinformationen erste Zeitfrequenz-Ressourcenangabeinformationen umfassen, wobei die ersten Zeitfrequenz-Ressourcenangabeinformationen verwendet werden, um eine Zeitfrequenzressource anzugeben, die von der Sendeeinheit (301) verwendet wird, um die Daten auf dem ersten Träger zu senden;

die Sendeeinheit (301) ferner konfiguriert ist, zweite Steuerinformationen auf einem vierten Träger zu senden; und

das Senden, durch die Sendeeinheit (301), der Daten auf dem ersten Träger gemäß den ersten Steuerinformationen umfasst: die Sendeeinheit (301) ist konfiguriert, die Daten auf dem ersten Träger gemäß den ersten Steuerinformationen und den zweiten Steuerinformationen zu senden, wobei die zweiten Steuerinformationen zweite Zeitfrequenz-Ressourcenangabeinformationen umfassen, die zweiten Zeitfrequenz-Ressourcenangabeinformationen verwendet werden, um eine Zeitfrequenzressource anzugeben, die von der Sendeeinheit (301) verwendet wird, um die Daten auf dem ersten Träger zu senden, wobei eine Dauer eines Übertragungszeitintervalls des vierten Trägers größer ist als die Dauer des Übertragungszeitintervalls des zweiten Trägers, und die Zeitfrequenzressource des ersten Trägers, die von den zweiten Zeitfrequenz-Ressourcenangabeinformationen angegeben wird, die Zeitfrequenzressource des ersten Trägers umfasst, die von den ersten Zeitfrequenz-Ressourcenangabeinformationen angegeben wird.


 
5. Basisstation nach Anspruch 4, wobei die Trägerangabeinformationen eine Trägerindexnummer umfassen, und die Trägerindexnummer verwendet wird, um den Träger anzugeben, auf dem sich die Daten, die von der Basisstation gemäß den ersten Steuerinformationen gesendet werden, befinden.
 
6. Basisstation nach Anspruch 4 oder 5, wobei die Trägerangabeinformationen ferner Start-Übertragungszeitintervallinformationen, Zeitfensterlängeninformationen und/oder End-Übertragungszeitintervallinformationen umfassen, wobei die Start-Übertragungszeitintervallinformationen verwendet werden, um ein Start-Übertragungszeitintervall der Daten, die auf dem ersten Träger von der Sendeeinheit (301) gesendet werden, anzugeben, die End-Übertragungszeitintervallinformationen verwendet werden, um ein End-Übertragungszeitintervall der Daten, die auf dem ersten Träger von der Sendeeinheit (301) gesendet werden, anzugeben, und die Zeitfensterlängeninformationen verwendet werden, um einen Bereich eines Übertragungszeitintervalls anzugeben, der von den Daten, die auf dem ersten Träger von der Sendeeinheit (301) gesendet werden, belegt wird.
 
7. Steuerinformationenempfangsverfahren, umfassend:

Empfangen, durch Benutzergerät, erster Steuerinformationen auf einem zweiten Träger,

wobei die ersten Steuerinformationen von dem Benutzergerät verwendet werden, um Daten auf einem ersten Träger gemäß den ersten Steuerinformationen zu empfangen; und

Empfangen, durch das Benutzergerät, der Daten auf dem ersten Träger, gemäß den ersten Steuerinformationen, wobei

eine Dauer eines Übertragungszeitintervalls des ersten Trägers kleiner ist als eine Dauer eines Übertragungszeitintervalls des zweiten Trägers;

wobei das Verfahren gekennzeichnet ist durch:

Empfangen, durch das Benutzergerät, von Trägerangabeinformationen eines dritten Trägers, wobei die Trägerangabeinformationen verwendet werden, um einen Träger anzugeben, auf dem sich Daten, die von dem Benutzergerät gemäß den ersten Steuerinformationen empfangen werden, befinden; und

wobei die ersten Steuerinformationen erste Zeitfrequenz-Ressourcenangabeinformationen umfassen, wobei die ersten Zeitfrequenz-Ressourcenangabeinformationen verwendet werden, um eine Zeitfrequenzressource anzugeben, die von dem Benutzergerät verwendet wird, um die Daten auf dem ersten Träger zu empfangen;

Empfangen, durch das Benutzergerät, zweiter Steuerinformationen auf einem vierten Träger; und

das Empfangen, durch das Benutzergerät, der Daten auf dem ersten Träger gemäß den ersten Steuerinformationen umfasst: Empfangen, durch das Benutzergerät, der Daten auf dem ersten Träger gemäß den ersten Steuerinformationen und den zweiten Steuerinformationen, wobei die zweiten Steuerinformationen zweite Zeitfrequenz-Ressourcenangabeinformationen umfassen, wobei die zweiten Zeitfrequenz-Ressourcenangabeinformationen verwendet werden, um eine Zeitfrequenzressource anzugeben, die von dem Benutzergerät verwendet wird, um die Daten auf dem ersten Träger zu empfangen, wobei eine Dauer eines Übertragungszeitintervalls des vierten Trägers größer ist als die Dauer des Übertragungszeitintervalls des zweiten Trägers, und die Zeitfrequenzressource des ersten Trägers, die von den zweiten Zeitfrequenz-Ressourcenangabeinformationen angegeben wird, die Zeitfrequenzressource des ersten Trägers umfasst, die von den ersten Zeitfrequenz-Ressourcenangabeinformationen angegeben wird.


 
8. Verfahren nach Anspruch 7, wobei die Trägerangabeinformationen eine Trägerindexnummer umfassen, und die Trägerindexnummer verwendet wird, um den Träger anzugeben, auf dem sich die Daten, die von dem Benutzergerät gemäß den ersten Steuerinformationen empfangen werden, befinden.
 
9. Verfahren nach Anspruch 7 oder 8, wobei die Trägerangabeinformationen ferner Start-Übertragungszeitintervallinformationen, Zeitfensterlängeninformationen und/oder End-Übertragungszeitintervallinformationen umfassen, wobei die Start-Übertragungszeitintervallinformationen verwendet werden, um ein Start-Übertragungszeitintervall der Daten, die auf dem ersten Träger von dem Benutzergerät empfangen werden, anzugeben, die End-Übertragungszeitintervallinformationen verwendet werden, um ein End-Übertragungszeitintervall der Daten, die auf dem ersten Träger von dem Benutzergerät empfangen werden, anzugeben, und die Zeitfensterlängeninformationen verwendet werden, um einen Bereich eines Übertragungszeitintervalls anzugeben, der von den Daten, die auf dem ersten Träger von dem Benutzergerät empfangen werden, belegt wird.
 
10. Benutzergerät, umfassend:

eine Empfangseinheit (501), die konfiguriert ist, erste Steuerinformationen auf einem zweiten Träger zu empfangen, wobei die ersten Steuerinformationen von der Empfangseinheit (501) verwendet werden, um Daten auf einem ersten Träger gemäß den ersten Steuerinformationen zu empfangen, wobei

die Empfangseinheit (501) ferner konfiguriert ist, die Daten auf dem ersten Träger gemäß den ersten Steuerinformationen zu empfangen, wobei

eine Dauer eines Übertragungszeitintervalls des ersten Trägers kleiner ist als eine Dauer eines Übertragungszeitintervalls des zweiten Trägers; dadurch gekennzeichnet, dass:

die Empfangseinheit (501) ferner konfiguriert ist, Trägerangabeinformationen auf einem dritten Träger zu empfangen, wobei die Trägerangabeinformationen verwendet werden, um einen Träger anzugeben, auf dem sich Daten, die von dem Benutzergerät gemäß den ersten Steuerinformationen empfangen werden, befinden; und

wobei die ersten Steuerinformationen erste Zeitfrequenz-Ressourcenangabeinformationen umfassen, wobei die ersten Zeitfrequenz-Ressourcenangabeinformationen verwendet werden, um eine Zeitfrequenzressource anzugeben, die von der Empfangseinheit (501) verwendet wird, um die Daten auf dem ersten Träger zu empfangen;

die Empfangseinheit (501) ferner konfiguriert ist, zweite Steuerinformationen auf einem vierten Träger zu empfangen; und

das Empfangen, durch die Empfangseinheit (501), der Daten auf dem ersten Träger gemäß den ersten Steuerinformationen umfasst: die Empfangseinheit (501) ist konfiguriert, die Daten auf dem ersten Träger gemäß den ersten Steuerinformationen und den zweiten Steuerinformationen zu empfangen, wobei die zweiten Steuerinformationen zweite Zeitfrequenz-Ressourcenangabeinformationen umfassen, wobei die zweiten Zeitfrequenz-Ressourcenangabeinformationen verwendet werden, um eine Zeitfrequenzressource, die von der Empfangseinheit (501) verwendet wird, um die Daten auf dem ersten Träger zu empfangen, wobei die Dauer eines Übertragungszeitintervalls des vierten Trägers größer ist als die Dauer des Übertragungszeitintervalls des zweiten Trägers, und die Zeitfrequenzressource des ersten Trägers, die von den zweiten Zeitfrequenz-Ressourcenangabeinformationen angegeben wird, die Zeitfrequenzressource des ersten Trägers umfasst, die von den ersten Zeitfrequenz-Ressourcenangabeinformationen angegeben wird.


 
11. Benutzergerät nach Anspruch 10, wobei die Trägerangabeinformationen eine Trägerindexnummer umfassen, und die Trägerindexnummer verwendet wird, um den Träger anzugeben, auf dem sich die Daten, die von der Empfangseinheit (501) gemäß den ersten Steuerinformationen empfangen werden, befinden.
 
12. Benutzergerät nach Anspruch 10 oder 11, wobei die Trägerangabeinformationen ferner Start-Übertragungszeitintervallinformationen, Zeitfensterlängeninformationen und/oder End-Übertragungszeit Intervallinformationen umfassen, wobei
die Start-Übertragungszeitintervallinformationen verwendet werden, um ein Start-Übertragungszeitintervall der Daten, die auf dem ersten Träger von der Empfangseinheit (501) empfangen werden, anzugeben, die End-Übertragungszeitintervallinformationen verwendet werden, um ein End-Übertragungszeitintervall der Daten, die auf dem ersten Träger von der Empfangseinheit (501) empfangen werden, anzugeben, und die Zeitfensterlängeninformationen verwendet werden, um einen Bereich eines Übertragungszeitintervalls anzugeben, der von den Daten, die auf dem ersten Träger von der Empfangseinheit (501) empfangen werden, belegt wird.
 


Revendications

1. Procédé d'émission d'informations de contrôle, consistant à :

envoyer, par une station de base, une première information de contrôle sur une deuxième porteuse, la première information de contrôle étant utilisée par la station de base pour envoyer des données sur une première porteuse selon la première information de contrôle ; et

envoyer, par la station de base, les données sur la première porteuse selon la première information de contrôle,

la durée d'un intervalle de temps d'émission de la première porteuse étant inférieure à la durée d'un intervalle de temps d'émission de la deuxième porteuse ;

le procédé étant caractérisé par les étapes consistant à :

envoyer, par la station de base, une information d'indication de porteuse sur une troisième porteuse, l'information d'indication de porteuse étant utilisée pour indiquer une porteuse sur laquelle sont situées les données qui sont envoyées par la station de base selon la première information de contrôle ; et

la première information de contrôle comprenant une première information d'indication de ressource temps-fréquence, et la première information d'indication de ressource temps-fréquence étant utilisée pour indiquer une ressource temps-fréquence utilisée par la station de base pour envoyer les données sur la première porteuse ;

envoyer, par la station de base, une seconde information de contrôle sur une quatrième porteuse ; et

l'envoi, par la station de base, des données sur la première porteuse selon la première information de contrôle consistant à : envoyer, par la station de base, les données sur la première porteuse selon la première information de contrôle et la seconde information de contrôle, la seconde information de contrôle comprenant une seconde information d'indication de ressource temps-fréquence, la seconde information d'indication de ressource temps-fréquence étant utilisée pour indiquer une ressource temps-fréquence utilisée par la station de base pour envoyer les données sur la première porteuse, la durée d'un intervalle de temps d'émission de la quatrième porteuse étant supérieure à la durée de l'intervalle de temps d'émission de la deuxième porteuse, et la ressource temps-fréquence de la première porteuse qui est indiquée par la seconde information d'indication de ressource temps-fréquence comprenant la ressource temps-fréquence de la première porteuse qui est indiquée par la première information d'indication de ressource temps-fréquence.


 
2. Procédé selon la revendication 1, dans lequel l'information d'indication de porteuse comprend un numéro d'indice de porteuse, et le numéro d'indice de porteuse est utilisé pour indiquer la porteuse sur laquelle sont situées les données qui sont envoyées par la station de base selon la première information de contrôle.
 
3. Procédé selon la revendication 1 ou 2, dans lequel l'information d'indication de porteuse comprend en outre au moins une information parmi une information d'intervalle de temps d'émission de début, une information de longueur de fenêtre de temps et une information d'intervalle de temps d'émission de fin,
l'information d'intervalle de temps d'émission de début étant utilisée pour indiquer un intervalle de temps d'émission de début des données qui sont envoyées sur la première porteuse par la station de base, l'information d'intervalle de temps d'émission de fin étant utilisée pour indiquer un intervalle de temps d'émission de fin des données qui sont envoyées sur la première porteuse par la station de base, et l'information de longueur de fenêtre de temps étant utilisée pour indiquer une plage d'un intervalle de temps d'émission occupé par les données qui sont envoyées sur la première porteuse par la station de base.
 
4. Station de base, comprenant :

une unité d'envoi (301), configurée pour envoyer une première information de contrôle sur une deuxième porteuse, la première information de contrôle étant utilisée par la station de base pour envoyer des données sur une première porteuse selon la première information de contrôle,

l'unité d'envoi (301) étant en outre configurée pour envoyer les données sur la première porteuse selon la première information de contrôle,

la durée d'un intervalle de temps d'émission de la première porteuse étant inférieure à la durée d'un intervalle de temps d'émission de la deuxième porteuse ;

caractérisée en ce que :

l'unité d'envoi (301) est en outre configurée pour envoyer une information d'indication de porteuse sur une troisième porteuse, l'information d'indication de porteuse étant utilisée pour indiquer une porteuse sur laquelle sont situées les données qui sont envoyées par l'unité d'envoi (301) selon la première information de contrôle ; la première information de contrôle comprenant une première information d'indication de ressource temps-fréquence, et la première information d'indication de ressource temps-fréquence étant utilisée pour indiquer une ressource temps-fréquence utilisée par l'unité d'envoi (301) pour envoyer les données sur la première porteuse ;

l'unité d'envoi (301) étant en outre configurée pour envoyer une seconde information de contrôle sur une quatrième porteuse ; et

l'envoi, par l'unité d'envoi (301), des données sur la première porteuse selon la première information de contrôle consistant à : envoyer, par l'unité d'envoi (301), les données sur la première porteuse selon la première information de contrôle et la seconde information de contrôle, la seconde information de contrôle comprenant une seconde information d'indication de ressource temps-fréquence, la seconde information d'indication de ressource temps-fréquence étant utilisée pour indiquer une ressource temps-fréquence utilisée par l'unité d'envoi (301) pour envoyer les données sur la première porteuse, la durée d'un intervalle de temps d'émission de la quatrième porteuse étant supérieure à la durée de l'intervalle de temps d'émission de la deuxième porteuse, et la ressource temps-fréquence de la première porteuse qui est indiquée par la seconde information d'indication de ressource temps-fréquence comprenant la ressource temps-fréquence de la première porteuse qui est indiquée par la première information d'indication de ressource temps-fréquence.


 
5. Station de base selon la revendication 4, dans laquelle l'information d'indication de porteuse comprend un numéro d'indice de porteuse, et le numéro d'indice de porteuse est utilisé pour indiquer la porteuse sur laquelle sont situées les données qui sont envoyées par la station de base selon la première information de contrôle.
 
6. Station de base selon la revendication 4 ou 5, dans laquelle l'information d'indication de porteuse comprend en outre au moins une information parmi une information d'intervalle de temps d'émission de début, une information de longueur de fenêtre de temps et une information d'intervalle de temps d'émission de fin,
l'information d'intervalle de temps d'émission de début étant utilisée pour indiquer un intervalle de temps d'émission de début des données qui sont envoyées sur la première porteuse par l'unité d'envoi (301), l'information d'intervalle de temps d'émission de fin étant utilisée pour indiquer un intervalle de temps d'émission de fin des données qui sont envoyées sur la première porteuse par l'unité d'envoi (301), et l'information de longueur de fenêtre de temps étant utilisée pour indiquer une plage d'un intervalle de temps d'émission occupé par les données qui sont envoyées sur la première porteuse par l'unité d'envoi (301).
 
7. Procédé de réception d'informations de contrôle, consistant à :

recevoir, par un équipement d'utilisateur, une première information de contrôle sur une deuxième porteuse, la première information de contrôle étant utilisée par l'équipement d'utilisateur pour recevoir des données sur une première porteuse selon la première information de contrôle ; et

recevoir, par l'équipement d'utilisateur, les données sur la première porteuse selon la première information de contrôle,

la durée d'un intervalle de temps d'émission de la première porteuse étant inférieure à la durée d'un intervalle de temps d'émission de la deuxième porteuse ;

le procédé étant caractérisé par les étapes consistant à :

recevoir, par l'équipement d'utilisateur, une information d'indication de porteuse sur une troisième porteuse, l'information d'indication de porteuse étant utilisée pour indiquer une porteuse sur laquelle sont situées les données qui sont reçues par l'équipement d'utilisateur selon la première information de contrôle ; et

la première information de contrôle comprenant une première information d'indication de ressource temps-fréquence, et la première information d'indication de ressource temps-fréquence étant utilisée pour indiquer une ressource temps-fréquence utilisée par l'équipement d'utilisateur pour recevoir les données sur la première porteuse ;

recevoir, par l'équipement d'utilisateur, une seconde information de contrôle sur une quatrième porteuse ; et

la réception, par l'équipement d'utilisateur, des données sur la première porteuse selon la première information de contrôle consistant à : recevoir, par l'équipement d'utilisateur, les données sur la première porteuse selon la première information de contrôle et la seconde information de contrôle, la seconde information de contrôle comprenant une seconde information d'indication de ressource temps-fréquence, la seconde information d'indication de ressource temps-fréquence étant utilisée pour indiquer une ressource temps-fréquence utilisée par l'équipement d'utilisateur pour recevoir les données sur la première porteuse, la durée d'un intervalle de temps d'émission de la quatrième porteuse étant supérieure à la durée de l'intervalle de temps d'émission de la deuxième porteuse, et la ressource temps-fréquence de la première porteuse qui est indiquée par la seconde information d'indication de ressource temps-fréquence comprenant la ressource temps-fréquence de la première porteuse qui est indiquée par la première information d'indication de ressource temps-fréquence.


 
8. Procédé selon la revendication 7, dans lequel l'information d'indication de porteuse comprend un numéro d'indice de porteuse, et le numéro d'indice de porteuse est utilisé pour indiquer la porteuse sur laquelle sont situées les données qui sont reçues par l'équipement d'utilisateur selon la première information de contrôle.
 
9. Procédé selon la revendication 7 ou 8, dans lequel l'information d'indication de porteuse comprend en outre au moins une information parmi une information d'intervalle de temps d'émission de début, une information de longueur de fenêtre de temps et une information d'intervalle de temps d'émission de fin,
l'information d'intervalle de temps d'émission de début étant utilisée pour indiquer un intervalle de temps d'émission de début des données qui sont reçues sur la première porteuse par l'équipement d'utilisateur, l'information d'intervalle de temps d'émission de fin étant utilisée pour indiquer un intervalle de temps d'émission de fin des données qui sont reçues sur la première porteuse par l'équipement d'utilisateur, et l'information de longueur de fenêtre de temps étant utilisée pour indiquer une plage d'un intervalle de temps d'émission occupé par les données qui sont reçues sur la première porteuse par l'équipement d'utilisateur.
 
10. Équipement d'utilisateur, comprenant :

une unité de réception (501), configurée pour recevoir une première information de contrôle sur une deuxième porteuse, la première information de contrôle étant utilisée par l'unité de réception (501) pour recevoir des données sur une première porteuse selon la première information de contrôle,

l'unité de réception (501) étant en outre configurée pour recevoir les données sur la première porteuse selon la première information de contrôle,

la durée d'un intervalle de temps d'émission de la première porteuse étant inférieure à la durée d'un intervalle de temps d'émission de la deuxième porteuse ;

étant caractérisé en ce que :

l'unité de réception (501) est configurée pour recevoir une information d'indication de porteuse sur une troisième porteuse,

l'information d'indication de porteuse étant utilisée pour indiquer une porteuse sur laquelle sont situées les données qui sont reçues par l'équipement d'utilisateur selon la première information de contrôle ; et

la première information de contrôle comprenant une première information d'indication de ressource temps-fréquence, et la première information d'indication de ressource temps-fréquence étant utilisée pour indiquer une ressource temps-fréquence utilisée par l'unité de réception (501) pour recevoir les données sur la première porteuse ;

l'unité de réception (501) étant en outre configurée pour recevoir une seconde information de contrôle sur une quatrième porteuse ; et

la réception, par l'unité de réception (501), des données sur la première porteuse selon la première information de contrôle consistant à: recevoir, par l'unité de réception (501), les données sur la première porteuse selon la première information de contrôle et la seconde information de contrôle, la seconde information de contrôle comprenant une seconde information d'indication de ressource temps-fréquence, la seconde information d'indication de ressource temps-fréquence étant utilisée pour indiquer une ressource temps-fréquence utilisée par l'unité de réception (501) pour recevoir les données sur la première porteuse, la durée d'un intervalle de temps d'émission de la quatrième porteuse étant supérieure à la durée de l'intervalle de temps d'émission de la deuxième porteuse, et la ressource temps-fréquence de la première porteuse qui est indiquée par la seconde information d'indication de ressource temps-fréquence comprenant la ressource temps-fréquence de la première porteuse qui est indiquée par la première information d'indication de ressource temps-fréquence.


 
11. Équipement d'utilisateur selon la revendication 10, dans lequel l'information d'indication de porteuse comprend un numéro d'indice de porteuse, et le numéro d'indice de porteuse est utilisé pour indiquer la porteuse sur laquelle sont situées les données qui sont reçues par l'unité de réception (501) selon la première information de contrôle.
 
12. Équipement d'utilisateur selon la revendication 10 ou 11, dans lequel l'information d'indication de porteuse comprend en outre au moins une information parmi une information d'intervalle de temps d'émission de début, une information de longueur de fenêtre de temps et une information d'intervalle de temps d'émission de fin, l'information d'intervalle de temps d'émission de début étant utilisée pour indiquer un intervalle de temps d'émission de début des données qui sont reçues sur la première porteuse par l'unité de réception (501), l'information d'intervalle de temps d'émission de fin étant utilisée pour indiquer un intervalle de temps d'émission de fin des données qui sont reçues sur la première porteuse par l'unité de réception (501), et l'information de longueur de fenêtre de temps étant utilisée pour indiquer une plage d'un intervalle de temps d'émission occupé par les données qui sont reçues sur la première porteuse par l'unité de réception (501).
 




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Cited references

REFERENCES CITED IN THE DESCRIPTION



This list of references cited by the applicant is for the reader's convenience only. It does not form part of the European patent document. Even though great care has been taken in compiling the references, errors or omissions cannot be excluded and the EPO disclaims all liability in this regard.

Patent documents cited in the description