| (11) | EP 3 668 142 A1 |
(12) | EUROPEAN PATENT APPLICATION |
published in accordance with Art. 153(4) EPC |
|
|
|
| |||||||||||||||||||||||||||||||||||
(54) | PUCCH TRANSMISSION METHOD, USER EQUIPMENT AND DEVICE |
(57) Provided are a physical uplink control channel (PUCCH) transmission method, user equipment and device, used to solve the technical problem that there is no clear method or device in existing technology which supports a PUCCH transmission scenario in a new wireless communication system. The PUCCH transmission method comprises: determining an uplink beam used during PUCCH transmission on the basis of a downlink beam used by a physical downlink control channel (PDCCH) and/or a physical downlink shared channel (PDSCH); and carrying out PUCCH transmission using the determined uplink beam. |
Field
Background
Summary
determining an uplink beam for PUCCH transmission according to a downlink beam used by a PDCCH and/or PDSCH;
performing the PUCCH transmission with the determined uplink beam.
determining a corresponding uplink Beam Pair Linkage, BPL, according to a downlink BPL corresponding to the received PDCCH and/or PDSCH, determining the uplink beam for the PUCCH transmission or a QCL relationship between a DMRS port of the PUCCH and a port on resources of a first reference signal according to the uplink BPL, and performing the PUCCH transmission with the uplink beam corresponding to the uplink BPL; or determining a QCL relationship between a DMRS port of the PUCCH and a port on resources of a first reference signal according to the uplink BPL, and performing the PUCCH transmission with the QCL relationship; or
determining a corresponding uplink beam index according to a downlink BPL corresponding to the received PDCCH and/or PDSCH, and performing the PUCCH transmission with the uplink beam corresponding to the uplink beam index; or
determining a QCL relationship between a DMRS port of the PUCCH and a port on resources of a first reference signal according to a downlink BPL corresponding to the received PDCCH and/or PDSCH, and performing the PUCCH transmission with the QCL relationship; or
determining an uplink beam index for identifying the uplink beam performing the PUCCH transmission according to a downlink beam index of the downlink beam corresponding to the received PDCCH and/or PDSCH, and performing the PUCCH transmission with the uplink beam corresponding to the uplink beam index; or
determining a QCL relationship between a DMRS port of the PUCCH and a port on resources of a first reference signal according to a QCL relationship between a DMRS port of the received PDCCH and/or PDSCH and a port on resources of a second reference signal, and performing the PUCCH transmission with the QCL relationship between the DMRS port of the PUCCH and the port on resources of the first reference signal; or
determining a corresponding uplink BPL according to a QCL relationship between a DMRS port of the received PDCCH and/or PDSCH and a port on resources of a second reference signal, determining the uplink beam for the PUCCH transmission or a QCL relationship between a DMRS port of the PUCCH and a port on resources of a first reference signal according to the uplink BPL, and performing the PUCCH transmission with the uplink beam corresponding to the uplink BPL; or determining a QCL relationship between a DMRS port of the PUCCH and a port on resources of a first reference signal according to the uplink BPL, and performing the PUCCH transmission with the QCL relationship; or
determining a corresponding uplink beam index according to a QCL relationship between a DMRS port of the received PDCCH and/or PDSCH and a port on resources of a second reference signal, and performing the PUCCH transmission with the uplink beam corresponding to the uplink beam index.
the DMRS port of the PDCCH and/or PDSCH, and all ports or a specified port on resources of a configured second reference signal are of QCL; or
the QCL relationship between the DMRS port of the PUCCH and the port on resources of the first reference signal includes:
the DMRS port of the PUCCH and all ports or a specified port on resources of a configured first reference signal are of QCL.
when a plurality of PDCCHs and/or PDSCHs are received and different downlink beams are used for the plurality of PDCCHs and/or PDSCHs and ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs are fed back at the same time, determining a plurality of uplink beams corresponding to the plurality of downlink beams, and selecting one from the plurality of uplink beams as the uplink beam for the PUCCH transmission;
performing the PUCCH transmission with the determined uplink beam, includes:
transmitting the ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs on the same PUCCH with the determined uplink beam.
when a plurality of PDCCHs and/or PDSCHs are received and different beams are used for the plurality of PDCCHs and/or PDSCHs and ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs are fed back at the same time, selecting one from the plurality of downlink beams, and determining the uplink beam for the PUCCH transmission according to the selected downlink beam;
performing the PUCCH transmission with the determined uplink beam, includes:
transmitting the ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs on the same PUCCH with the determined uplink beam.
first way: determining a first uplink beam according to a downlink beam-x used by a received first PDCCH and/or PDSCH, and determining that the first uplink beam is used to transmit a PUCCH carrying ACK/NACK related to the first PDCCH and/or PDSCH, wherein the downlink beam-x and the first uplink beam are in a same group and have a correspondence, and/or, determining a second uplink beam according to a downlink beam-y used by a received second PDCCH and/or PDSCH, and using the second uplink beam to transmit a PUCCH carrying ACK/NACK related to the second PDCCH and/or PDSCH, wherein the downlink beam-y and the second uplink beam are in a same group and have a correspondence; wherein ACK/NACKs related to PDCCHs and/or PDSCHs transmitted by using different downlink beams in a same beam group are transmitted at different times;
second way: when a plurality of PDCCHs and/or PDSCHs transmitted by using different downlink beams in a same group are received and ACK/NACKs related to the PDCCHs and/or PDSCHs are fed back at the same time, determining a plurality of uplink beams corresponding to the plurality of downlink beams in the group, and selecting one from the plurality of uplink beams as the uplink beam for the PUCCH transmission, wherein the PUCCH carries the ACK/NACKs related to the PDCCHs and/or PDSCHs;
third way: when a plurality of PDCCHs and/or PDSCHs transmitted by using different downlink beams in a same group are received and ACK/NACKs related to the PDCCHs and/or PDSCHs are fed back at the same time, selecting one from the plurality of downlink beams, and determining the uplink beam for the PUCCH transmission according to the selected downlink beam, wherein the PUCCH carries the ACK/NACKs related to the PDCCHs and/or PDSCHs.
selecting one from the plurality of uplink beams as the uplink beam for the PUCCH transmission according to pre-configured or pre-agreed priorities of uplink beams or cells; or
when the plurality of uplink beams contain a pre-configured or pre-agreed uplink primary beam, determining the uplink primary beam as the uplink beam for the PUCCH transmission; and when the at least one uplink beam does not contain the uplink primary beam, determining a secondary beam with a certain index in the at least one uplink beam as the uplink beam for the PUCCH transmission; or
when there is an uplink beam corresponding to a pre-configured or pre-agreed primary cell in the plurality of uplink beams, taking the uplink beam corresponding to the primary cell as the uplink beam for the PUCCH transmission; and when there is no uplink beam corresponding to the primary cell in the at least one uplink beam, taking an uplink beam corresponding to a secondary cell as the uplink beam for the PUCCH transmission.
selecting one downlink beam according to pre-configured or pre-agreed uplink beam priorities, beam group priorities or cell priorities, and determining the uplink beam for the PUCCH transmission according to the selected downlink beam; or
when a PDCCH and/or PDSCH transmitted by using a downlink primary beam is received, determining the uplink beam for the PUCCH transmission according to the downlink primary beam, and/or, when the PDCCH and/or PDSCH transmission is received on a primary cell, determining the uplink beam for the PUCCH transmission according to a downlink beam corresponding to the primary cell; and when no PDCCH and/or PDSCH transmitted by using the downlink primary beam is received or when no PDCCH and/or PDSCH transmission is received on the primary cell, determining the uplink beam for the PUCCH transmission according to a downlink secondary beam with a certain index used by the received PDCCH and/or PDSCH transmission, and/or, determining the uplink beam for the PUCCH transmission according to a downlink beam corresponding to a secondary cell receiving the PDCCH and/or PDSCH transmission; wherein the downlink primary beam and the primary cell are pre-configured or pre-agreed; or
when a PDCCH and/or PDSCH transmitted by using a downlink beam in a downlink primary beam group is received, determining an uplink primary beam corresponding to the primary beam group as the uplink beam for the PUCCH transmission, wherein the primary beam group and the uplink primary beam corresponding to the primary beam group are pre-configured or pre-defined; and when no PDCCH and/or PDSCH transmitted by using any downlink beam in the downlink primary beam group is received, if a PDCCH and/or PDSCH transmitted by using a downlink beam in a downlink secondary beam group is received, then determining an uplink secondary beam corresponding to the downlink secondary beam group as the uplink beam for the PUCCH transmission; and if there are a plurality of downlink secondary beam groups, then selecting one downlink secondary beam group in accordance with priorities of the downlink secondary beam groups or an order of the index of the downlink secondary beam groups.
determining that a terminal determines an uplink beam for PUCCH transmission according to a downlink beam used by a PDCCH and/or PDSCH;
determining that the terminal performs the PUCCH transmission with the determined uplink beam.
determining that the terminal determines a corresponding uplink Beam Pair Linkage, BPL, according to a downlink BPL corresponding to the received PDCCH and/or PDSCH, determines the uplink beam for the PUCCH transmission or a QCL relationship between a DMRS port of the PUCCH and a port on resources of a first reference signal according to the uplink BPL, and performs the PUCCH transmission with the uplink beam corresponding to the uplink BPL; or determines a QCL relationship between a DMRS port of the PUCCH and a port on resources of a first reference signal according to the uplink BPL, and performs the PUCCH transmission with the QCL relationship; or
determining that the terminal determines a corresponding uplink beam index according to a downlink BPL corresponding to the received PDCCH and/or PDSCH, and determining that the performs the PUCCH transmission with the uplink beam corresponding to the uplink beam index; or
determining that the terminal determines a QCL relationship between a DMRS port of the PUCCH and a port on resources of a first reference signal according to a downlink BPL corresponding to the received PDCCH and/or PDSCH, and determining that the terminal performs the PUCCH transmission with the QCL relationship; or
determining that the terminal determines an uplink beam index for identifying the uplink beam performing the PUCCH transmission according to a downlink beam index of the downlink beam corresponding to the received PDCCH and/or PDSCH, and determining that the terminal performs the PUCCH transmission with the uplink beam corresponding to the uplink beam index; or
determining that the terminal determines a QCL relationship between a DMRS port of the PUCCH and a port on resources of a first reference signal according to a QCL relationship between a DMRS port of the received PDCCH and/or PDSCH and a port on resources of a second reference signal, and determining that the terminal performs the PUCCH transmission with the QCL relationship between the DMRS port of the PUCCH and the port on resources of the first reference signal; or
determining that the terminal determines a corresponding uplink BPL according to a QCL relationship between a DMRS port of the received PDCCH and/or PDSCH and a port on resources of a second reference signal, determines the uplink beam for the PUCCH transmission or a QCL relationship between a DMRS port of the PUCCH and a port on resources of a first reference signal according to the uplink BPL, and performs the PUCCH transmission with the uplink beam corresponding to the uplink BPL; or determines a QCL relationship between a DMRS port of the PUCCH and a port on resources of a first reference signal according to the uplink BPL, and performs the PUCCH transmission with the QCL relationship; or
determining that the terminal determines a corresponding uplink beam index according to a QCL relationship between a DMRS port of the received PDCCH and/or PDSCH and a port on resources of a second reference signal, and determining that the terminal performs the PUCCH transmission with the uplink beam corresponding to the uplink beam index.
the DMRS port of the PDCCH and/or PDSCH, and all ports or a specified port on resources of a configured second reference signal are of QCL; or
the QCL relationship between the DMRS port of the PUCCH and the port on resources of the first reference signal includes:
the DMRS port of the PUCCH and all ports or a specified port on resources of a configured first reference signal are of QCL.
when a plurality of PDCCHs and/or PDSCHs are received and different downlink beams are used for the plurality of PDCCHs and/or PDSCHs and ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs are fed back at the same time, determining a plurality of uplink beams corresponding to the plurality of downlink beams, and selecting one from the plurality of uplink beams as the uplink beam for the PUCCH transmission;
determining that the terminal performs the PUCCH transmission with the determined uplink beam in accordance with the process of:
transmitting the ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs on the same PUCCH with the determined uplink beam.
when a plurality of PDCCHs and/or PDSCHs are received and different beams are used for the plurality of PDCCHs and/or PDSCHs and ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs are fed back at the same time, selecting one from the plurality of downlink beams, and determining the uplink beam for the PUCCH transmission according to the selected downlink beam;
determining that the terminal performs the PUCCH transmission with the determined uplink beam in accordance with the process of:
transmitting the ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs on the same PUCCH with the determined uplink beam.
first way: determining a first uplink beam according to a downlink beam-x used by a received first PDCCH and/or PDSCH, and determining that the first uplink beam is used to transmit a PUCCH carrying ACK/NACK related to the first PDCCH and/or PDSCH, wherein the downlink beam-x and the first uplink beam are in a same group and have a correspondence, and/or, determining a second uplink beam according to a downlink beam-y used by a received second PDCCH and/or PDSCH, and using the second uplink beam to transmit a PUCCH carrying ACK/NACK related to the second PDCCH and/or PDSCH, wherein the downlink beam-y and the second uplink beam are in a same group and have a correspondence; wherein ACK/NACKs related to PDCCHs and/or PDSCHs transmitted by using different downlink beams in a same beam group are transmitted at different times;
second way: when a plurality of PDCCHs and/or PDSCHs transmitted by using different downlink beams in a same group are received and ACK/NACKs related to the PDCCHs and/or PDSCHs are fed back at the same time, determining a plurality of uplink beams corresponding to the plurality of downlink beams in the group, and selecting one from the plurality of uplink beams as the uplink beam for the PUCCH transmission, wherein the PUCCH carries the ACK/NACKs related to the PDCCHs and/or PDSCHs;
third way: when a plurality of PDCCHs and/or PDSCHs transmitted by using different downlink beams in a same group are received and ACK/NACKs related to the PDCCHs and/or PDSCHs are fed back at the same time, selecting one from the plurality of downlink beams, and determining the uplink beam for the PUCCH transmission according to the selected downlink beam, wherein the PUCCH carries the ACK/NACKs related to the PDCCHs and/or PDSCHs.
when a first PDCCH and/or PDSCH transmitted by using a downlink beam belonging to a first group is received, determining that a first uplink primary beam corresponding to the first group is used to transmit a PUCCH carrying ACK/NACK related to the first PDCCH and/or PDSCH, and/or, when a second PDCCH and/or PDSCH transmitted by using a downlink beam belonging to a second group is received, using a second uplink primary beam corresponding to the second group to transmit a PUCCH carrying ACK/NACK related to the second PDCCH and/or PDSCH.
selecting one from the plurality of uplink beams as the uplink beam for the PUCCH transmission according to pre-configured or pre-agreed priorities of uplink beams or cells; or
when the plurality of uplink beams contain a pre-configured or pre-agreed uplink primary beam, determining the uplink primary beam as the uplink beam for the PUCCH transmission; and when the at least one uplink beam does not contain the uplink primary beam, determining a secondary beam with a certain index in the at least one uplink beam as the uplink beam for the PUCCH transmission; or
when there is an uplink beam corresponding to a pre-configured or pre-agreed primary cell in the plurality of uplink beams, taking the uplink beam corresponding to the primary cell as the uplink beam for the PUCCH transmission; and when there is no uplink beam corresponding to the primary cell in the at least one uplink beam, taking an uplink beam corresponding to a secondary cell as the uplink beam for the PUCCH transmission.
selecting one downlink beam according to pre-configured or pre-agreed uplink beam priorities, beam group priorities or cell priorities, and determining the uplink beam for the PUCCH transmission according to the selected downlink beam; or
when a PDCCH and/or PDSCH transmitted by using a downlink primary beam is received, determining the uplink beam for the PUCCH transmission according to the downlink primary beam, and/or, when the PDCCH and/or PDSCH transmission is received on a primary cell, determining the uplink beam for the PUCCH transmission according to a downlink beam corresponding to the primary cell; and when no PDCCH and/or PDSCH transmitted by using the downlink primary beam is received or when no PDCCH and/or PDSCH transmission is received on the primary cell, determining the uplink beam for the PUCCH transmission according to a downlink secondary beam with a certain index used by the received PDCCH and/or PDSCH transmission, and/or, determining the uplink beam for the PUCCH transmission according to a downlink beam corresponding to a secondary cell receiving the PDCCH and/or PDSCH transmission; wherein the downlink primary beam and the primary cell are pre-configured or pre-agreed; or
when a PDCCH and/or PDSCH transmitted by using a downlink beam in a downlink primary beam group is received, determining an uplink primary beam corresponding to the primary beam group as the uplink beam for the PUCCH transmission, wherein the primary beam group and the uplink primary beam corresponding to the primary beam group are pre-configured or pre-defined; and when no PDCCH and/or PDSCH transmitted by using any downlink beam in the downlink primary beam group is received, if a PDCCH and/or PDSCH transmitted by using a downlink beam in a downlink secondary beam group is received, then determining an uplink secondary beam corresponding to the downlink secondary beam group as the uplink beam for the PUCCH transmission; and if there are a plurality of downlink secondary beam groups, then selecting one downlink secondary beam group in accordance with priorities of the downlink secondary beam groups or an order of the index of the downlink secondary beam groups.
a determining unit configured to determine an uplink beam for PUCCH transmission according to a downlink beam used by a PDCCH and/or PDSCH;
a transmission unit configured to perform the PUCCH transmission with the determined uplink beam.
the DMRS port of the PDCCH and/or PDSCH, and all ports or a specified port on resources of a configured second reference signal are of QCL; or
the QCL relationship between the DMRS port of the PUCCH and the port on resources of the first reference signal includes:
the DMRS port of the PUCCH and all ports or a specified port on resources of a configured first reference signal are of QCL.
when a plurality of PDCCHs and/or PDSCHs are received and different downlink beams are used for the plurality of PDCCHs and/or PDSCHs and ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs are fed back at the same time, determine a plurality of uplink beams corresponding to the plurality of downlink beams, and select one from the plurality of uplink beams as the uplink beam for the PUCCH transmission;
the transmission unit is configured to:
transmit the ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs on the same PUCCH with the determined uplink beam.
when a plurality of PDCCHs and/or PDSCHs are received and different beams are used for the plurality of PDCCHs and/or PDSCHs and ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs are fed back at the same time, select one from the plurality of downlink beams, and determine the uplink beam for the PUCCH transmission according to the selected downlink beam;
the transmission unit is configured to:
transmit the ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs on the same PUCCH with the determined uplink beam.
first way: determine a first uplink beam according to a downlink beam-x used by a received first PDCCH and/or PDSCH, and determine that the first uplink beam is used to transmit a PUCCH carrying ACK/NACK related to the first PDCCH and/or PDSCH, wherein the downlink beam-x and the first uplink beam are in a same group and have a correspondence, and/or, determine a second uplink beam according to a downlink beam-y used by a received second PDCCH and/or PDSCH, and use the second uplink beam to transmit a PUCCH carrying ACK/NACK related to the second PDCCH and/or PDSCH, wherein the downlink beam-y and the second uplink beam are in a same group and have a correspondence; wherein ACK/NACKs related to PDCCHs and/or PDSCHs transmitted by using different downlink beams in a same beam group are transmitted at different times;
second way: when a plurality of PDCCHs and/or PDSCHs transmitted by using different downlink beams in a same group are received and ACK/NACKs related to the PDCCHs and/or PDSCHs are fed back at the same time, determine a plurality of uplink beams corresponding to the plurality of downlink beams in the group, and select one from the plurality of uplink beams as the uplink beam for the PUCCH transmission, wherein the PUCCH carries the ACK/NACKs related to the PDCCHs and/or PDSCHs;
third way: when a plurality of PDCCHs and/or PDSCHs transmitted by using different downlink beams in a same group are received and ACK/NACKs related to the PDCCHs and/or PDSCHs are fed back at the same time, select one from the plurality of downlink beams, and determine the uplink beam for the PUCCH transmission according to the selected downlink beam, wherein the PUCCH carries the ACK/NACKs related to the PDCCHs and/or PDSCHs.
select one from the plurality of uplink beams as the uplink beam for the PUCCH transmission according to pre-configured or pre-agreed priorities of uplink beams or cells; or
when the plurality of uplink beams contain a pre-configured or pre-agreed uplink primary beam, determine the uplink primary beam as the uplink beam for the PUCCH transmission; and when the at least one uplink beam does not contain the uplink primary beam, determine a secondary beam with a certain index in the at least one uplink beam as the uplink beam for the PUCCH transmission; or
when there is an uplink beam corresponding to a pre-configured or pre-agreed primary cell in the plurality of uplink beams, take the uplink beam corresponding to the primary cell as the uplink beam for the PUCCH transmission; and when there is no uplink beam corresponding to the primary cell in the at least one uplink beam, take an uplink beam corresponding to a secondary cell as the uplink beam for the PUCCH transmission.
select one downlink beam according to pre-configured or pre-agreed uplink beam priorities, beam group priorities or cell priorities, and determine the uplink beam for the PUCCH transmission according to the selected downlink beam; or
when a PDCCH and/or PDSCH transmitted by using a downlink primary beam is received, determine the uplink beam for the PUCCH transmission according to the downlink primary beam, and/or, when the PDCCH and/or PDSCH transmission is received on a primary cell, determine the uplink beam for the PUCCH transmission according to a downlink beam corresponding to the primary cell; and when no PDCCH and/or PDSCH transmitted by using the downlink primary beam is received or when no PDCCH and/or PDSCH transmission is received on the primary cell, determine the uplink beam for the PUCCH transmission according to a downlink secondary beam with a certain index used by the received PDCCH and/or PDSCH transmission, and/or, determine the uplink beam for the PUCCH transmission according to a downlink beam corresponding to a secondary cell receiving the PDCCH and/or PDSCH transmission; wherein the downlink primary beam and the primary cell are pre-configured or pre-agreed; or
when a PDCCH and/or PDSCH transmitted by using a downlink beam in a downlink primary beam group is received, determine an uplink primary beam corresponding to the primary beam group as the uplink beam for the PUCCH transmission, wherein the primary beam group and the uplink primary beam corresponding to the primary beam group are pre-configured or pre-defined; and when no PDCCH and/or PDSCH transmitted by using any downlink beam in the downlink primary beam group is received, if a PDCCH and/or PDSCH transmitted by using a downlink beam in a downlink secondary beam group is received, then determine an uplink secondary beam corresponding to the downlink secondary beam group as the uplink beam for the PUCCH transmission; and if there are a plurality of downlink secondary beam groups, then select one downlink secondary beam group in accordance with priorities of the downlink secondary beam groups or an order of the index of the downlink secondary beam groups.
determine that the terminal determines a corresponding uplink Beam Pair Linkage, BPL, according to a downlink BPL corresponding to the received PDCCH and/or PDSCH, determines the uplink beam for the PUCCH transmission or a QCL relationship between a DMRS port of the PUCCH and a port on resources of a first reference signal according to the uplink BPL, and performs the PUCCH transmission with the uplink beam corresponding to the uplink BPL; or determines a QCL relationship between a DMRS port of the PUCCH and a port on resources of a first reference signal according to the uplink BPL, and performs the PUCCH transmission with the QCL relationship; or
determine that the terminal determines a corresponding uplink beam index according to a downlink BPL corresponding to the received PDCCH and/or PDSCH, and determine that the terminal performs the PUCCH transmission with the uplink beam corresponding to the uplink beam index; or
determine that the terminal determines a QCL relationship between a DMRS port of the PUCCH and a port on resources of a first reference signal according to a downlink BPL corresponding to the received PDCCH and/or PDSCH, and determine that the terminal performs the PUCCH transmission with the QCL relationship; or
determine that the terminal determines an uplink beam index for identifying the uplink beam performing the PUCCH transmission according to a downlink beam index of the downlink beam corresponding to the received PDCCH and/or PDSCH, and determine that the terminal performs the PUCCH transmission with the uplink beam corresponding to the uplink beam index; or
determine that the terminal determines a QCL relationship between a DMRS port of the PUCCH and a port on resources of a first reference signal according to a QCL relationship between a DMRS port of the received PDCCH and/or PDSCH and a port on resources of a second reference signal, and determine that the terminal performs the PUCCH transmission with the QCL relationship between the DMRS port of the PUCCH and the port on resources of the first reference signal; or
determine that the terminal determines a corresponding uplink BPL according to a QCL relationship between a DMRS port of the received PDCCH and/or PDSCH and a port on resources of a second reference signal, determines the uplink beam for the PUCCH transmission or a QCL relationship between a DMRS port of the PUCCH and a port on resources of a first reference signal according to the uplink BPL, and performs the PUCCH transmission with the uplink beam corresponding to the uplink BPL; or determines a QCL relationship between a DMRS port of the PUCCH and a port on resources of a first reference signal according to the uplink BPL, and performs the PUCCH transmission with the QCL relationship; or
determine that the terminal determines a corresponding uplink beam index according to a QCL relationship between a DMRS port of the received PDCCH and/or PDSCH and a port on resources of a second reference signal, and determine that the terminal performs the PUCCH transmission with the uplink beam corresponding to the uplink beam index.
the DMRS port of the PDCCH and/or PDSCH, and all ports or a specified port on resources of a configured second reference signal are of QCL; or
the QCL relationship between the DMRS port of the PUCCH and the port on resources of the first reference signal includes:
the DMRS port of the PUCCH and all ports or a specified port on resources of a configured first reference signal are of QCL.
when a plurality of PDCCHs and/or PDSCHs are received and different downlink beams are used for the plurality of PDCCHs and/or PDSCHs and ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs are fed back at the same time, determine a plurality of uplink beams corresponding to the plurality of downlink beams, and select one from the plurality of uplink beams as the uplink beam for the PUCCH transmission;
determine that the terminal performs the PUCCH transmission with the determined uplink beam in accordance with the process of:
transmitting the ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs on the same PUCCH with the determined uplink beam.
when a plurality of PDCCHs and/or PDSCHs are received and different beams are used for the plurality of PDCCHs and/or PDSCHs and ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs are fed back at the same time, select one from the plurality of downlink beams, and determine the uplink beam for the PUCCH transmission according to the selected downlink beam;
determine that the terminal performs the PUCCH transmission with the determined uplink beam in accordance with the process of:
transmitting the ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs on the same PUCCH with the determined uplink beam.
first way: determine a first uplink beam according to a downlink beam-x used by a received first PDCCH and/or PDSCH, and determine that the first uplink beam is used to transmit a PUCCH carrying ACK/NACK related to the first PDCCH and/or PDSCH, wherein the downlink beam-x and the first uplink beam are in a same group and have a correspondence, and/or, determine a second uplink beam according to a downlink beam-y used by a received second PDCCH and/or PDSCH, and use the second uplink beam to transmit a PUCCH carrying ACK/NACK related to the second PDCCH and/or PDSCH, wherein the downlink beam-y and the second uplink beam are in a same group and have a correspondence; wherein ACK/NACKs related to PDCCHs and/or PDSCHs transmitted by using different downlink beams in a same beam group are transmitted at different times;
second way: when a plurality of PDCCHs and/or PDSCHs transmitted by using different downlink beams in a same group are received and ACK/NACKs related to the PDCCHs and/or PDSCHs are fed back at the same time, determine a plurality of uplink beams corresponding to the plurality of downlink beams in the group, and select one from the plurality of uplink beams as the uplink beam for the PUCCH transmission, wherein the PUCCH carries the ACK/NACKs related to the PDCCHs and/or PDSCHs;
third way: when a plurality of PDCCHs and/or PDSCHs transmitted by using different downlink beams in a same group are received and ACK/NACKs related to the PDCCHs and/or PDSCHs are fed back at the same time, select one from the plurality of downlink beams, and determine the uplink beam for the PUCCH transmission according to the selected downlink beam, wherein the PUCCH carries the ACK/NACKs related to the PDCCHs and/or PDSCHs.
select one from the plurality of uplink beams as the uplink beam for the PUCCH transmission according to pre-configured or pre-agreed priorities of uplink beams or cells; or
when the plurality of uplink beams contain a pre-configured or pre-agreed uplink primary beam, determine the uplink primary beam as the uplink beam for the PUCCH transmission; and when the at least one uplink beam does not contain the uplink primary beam, determine a secondary beam with a certain index in the at least one uplink beam as the uplink beam for the PUCCH transmission; or
when there is an uplink beam corresponding to a pre-configured or pre-agreed primary cell in the plurality of uplink beams, take the uplink beam corresponding to the primary cell as the uplink beam for the PUCCH transmission; and when there is no uplink beam corresponding to the primary cell in the at least one uplink beam, take an uplink beam corresponding to a secondary cell as the uplink beam for the PUCCH transmission.
select one downlink beam according to pre-configured or pre-agreed uplink beam priorities, beam group priorities or cell priorities, and determine the uplink beam for the PUCCH transmission according to the selected downlink beam; or
when a PDCCH and/or PDSCH transmitted by using a downlink primary beam is received, determine the uplink beam for the PUCCH transmission according to the downlink primary beam, and/or, when the PDCCH and/or PDSCH transmission is received on a primary cell, determine the uplink beam for the PUCCH transmission according to a downlink beam corresponding to the primary cell; and when no PDCCH and/or PDSCH transmitted by using the downlink primary beam is received or when no PDCCH and/or PDSCH transmission is received on the primary cell, determine the uplink beam for the PUCCH transmission according to a downlink secondary beam with a certain index used by the received PDCCH and/or PDSCH transmission, and/or, determine the uplink beam for the PUCCH transmission according to a downlink beam corresponding to a secondary cell receiving the PDCCH and/or PDSCH transmission; wherein the downlink primary beam and the primary cell are pre-configured or pre-agreed; or
when a PDCCH and/or PDSCH transmitted by using a downlink beam in a downlink primary beam group is received, determine an uplink primary beam corresponding to the primary beam group as the uplink beam for the PUCCH transmission, wherein the primary beam group and the uplink primary beam corresponding to the primary beam group are pre-configured or pre-defined; and when no PDCCH and/or PDSCH transmitted by using any downlink beam in the downlink primary beam group is received, if a PDCCH and/or PDSCH transmitted by using a downlink beam in a downlink secondary beam group is received, then determine an uplink secondary beam corresponding to the downlink secondary beam group as the uplink beam for the PUCCH transmission; and if there are a plurality of downlink secondary beam groups, then select one downlink secondary beam group in accordance with priorities of the downlink secondary beam groups or an order of the index of the downlink secondary beam groups.
determining an uplink beam for PUCCH transmission according to a downlink beam used by a PDCCH and/or PDSCH;
controlling the transceiver to perform the PUCCH transmission with the determined uplink beam.
the DMRS port of the PDCCH and/or PDSCH, and all ports or a specified port on resources of a configured second reference signal are of QCL; or
the QCL relationship between the DMRS port of the PUCCH and the port on resources of the first reference signal includes:
the DMRS port of the PUCCH and all ports or a specified port on resources of a configured first reference signal are of QCL.
when a plurality of PDCCHs and/or PDSCHs are received and different downlink beams are used for the plurality of PDCCHs and/or PDSCHs and ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs are fed back at the same time, determining a plurality of uplink beams corresponding to the plurality of downlink beams, and selecting one from the plurality of uplink beams as the uplink beam for the PUCCH transmission;
controlling the transceiver to perform the PUCCH transmission with the determined uplink beam, includes:
controlling the transceiver to transmit the ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs on the same PUCCH with the determined uplink beam.
when a plurality of PDCCHs and/or PDSCHs are received and different beams are used for the plurality of PDCCHs and/or PDSCHs and ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs are fed back at the same time, selecting one from the plurality of downlink beams, and determining the uplink beam for the PUCCH transmission according to the selected downlink beam;
controlling the transceiver to perform the PUCCH transmission with the determined uplink beam, includes:
controlling the transceiver to transmit the ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs on the same PUCCH with the determined uplink beam.
first way: determining a first uplink beam according to a downlink beam-x used by a received first PDCCH and/or PDSCH, and determining that the first uplink beam is used to transmit a PUCCH carrying ACK/NACK related to the first PDCCH and/or PDSCH, wherein the downlink beam-x and the first uplink beam are in a same group and have a correspondence, and/or, determining a second uplink beam according to a downlink beam-y used by a received second PDCCH and/or PDSCH, and using the second uplink beam to transmit a PUCCH carrying ACK/NACK related to the second PDCCH and/or PDSCH, wherein the downlink beam-y and the second uplink beam are in a same group and have a correspondence; wherein ACK/NACKs related to PDCCHs and/or PDSCHs transmitted by using different downlink beams in a same beam group are transmitted at different times;
second way: when a plurality of PDCCHs and/or PDSCHs transmitted by using different downlink beams in a same group are received and ACK/NACKs related to the PDCCHs and/or PDSCHs are fed back at the same time, determining a plurality of uplink beams corresponding to the plurality of downlink beams in the group, and selecting one from the plurality of uplink beams as the uplink beam for the PUCCH transmission, wherein the PUCCH carries the ACK/NACKs related to the PDCCHs and/or PDSCHs;
third way: when a plurality of PDCCHs and/or PDSCHs transmitted by using different downlink beams in a same group are received and ACK/NACKs related to the PDCCHs and/or PDSCHs are fed back at the same time, selecting one from the plurality of downlink beams, and determining the uplink beam for the PUCCH transmission according to the selected downlink beam, wherein the PUCCH carries the ACK/NACKs related to the PDCCHs and/or PDSCHs.
selecting one from the plurality of uplink beams as the uplink beam for the PUCCH transmission according to pre-configured or pre-agreed priorities of uplink beams or cells; or
when the plurality of uplink beams contain a pre-configured or pre-agreed uplink primary beam, determining the uplink primary beam as the uplink beam for the PUCCH transmission; and when the at least one uplink beam does not contain the uplink primary beam, determining a secondary beam with a certain index in the at least one uplink beam as the uplink beam for the PUCCH transmission; or
when there is an uplink beam corresponding to a pre-configured or pre-agreed primary cell in the plurality of uplink beams, taking the uplink beam corresponding to the primary cell as the uplink beam for the PUCCH transmission; and when there is no uplink beam corresponding to the primary cell in the at least one uplink beam, taking an uplink beam corresponding to a secondary cell as the uplink beam for the PUCCH transmission.
selecting one downlink beam according to pre-configured or pre-agreed uplink beam priorities, beam group priorities or cell priorities, and determining the uplink beam for the PUCCH transmission according to the selected downlink beam; or
when a PDCCH and/or PDSCH transmitted by using a downlink primary beam is received, determining the uplink beam for the PUCCH transmission according to the downlink primary beam, and/or, when the PDCCH and/or PDSCH transmission is received on a primary cell, determining the uplink beam for the PUCCH transmission according to a downlink beam corresponding to the primary cell; and when no PDCCH and/or PDSCH transmitted by using the downlink primary beam is received or when no PDCCH and/or PDSCH transmission is received on the primary cell, determining the uplink beam for the PUCCH transmission according to a downlink secondary beam with a certain index used by the received PDCCH and/or PDSCH transmission, and/or, determining the uplink beam for the PUCCH transmission according to a downlink beam corresponding to a secondary cell receiving the PDCCH and/or PDSCH transmission; wherein the downlink primary beam and the primary cell are pre-configured or pre-agreed; or
when a PDCCH and/or PDSCH transmitted by using a downlink beam in a downlink primary beam group is received, determining an uplink primary beam corresponding to the primary beam group as the uplink beam for the PUCCH transmission, wherein the primary beam group and the uplink primary beam corresponding to the primary beam group are pre-configured or pre-defined; and when no PDCCH and/or PDSCH transmitted by using any downlink beam in the downlink primary beam group is received, if a PDCCH and/or PDSCH transmitted by using a downlink beam in a downlink secondary beam group is received, then determining an uplink secondary beam corresponding to the downlink secondary beam group as the uplink beam for the PUCCH transmission; and if there are a plurality of downlink secondary beam groups, then selecting one downlink secondary beam group in accordance with priorities of the downlink secondary beam groups or an order of the index of the downlink secondary beam groups.
determining that a terminal determines an uplink beam for PUCCH transmission according to a downlink beam used by a PDCCH and/or PDSCH;
determining that the terminal performs the PUCCH transmission with the determined uplink beam.
determining that the terminal determines a corresponding uplink Beam Pair Linkage, BPL, according to a downlink BPL corresponding to the received PDCCH and/or PDSCH, determines the uplink beam for the PUCCH transmission or a QCL relationship between a DMRS port of the PUCCH and a port on resources of a first reference signal according to the uplink BPL, and performs the PUCCH transmission with the uplink beam corresponding to the uplink BPL; or determines a QCL relationship between a DMRS port of the PUCCH and a port on resources of a first reference signal according to the uplink BPL, and performs the PUCCH transmission with the QCL relationship; or
determining that the terminal determines a corresponding uplink beam index according to a downlink BPL corresponding to the received PDCCH and/or PDSCH, and determining that the terminal performs the PUCCH transmission with the uplink beam corresponding to the uplink beam index; or
determining that the terminal determines a QCL relationship between a DMRS port of the PUCCH and a port on resources of a first reference signal according to a downlink BPL corresponding to the received PDCCH and/or PDSCH, and determining that the terminal performs the PUCCH transmission with the QCL relationship; or
determining that the terminal determines an uplink beam index for identifying the uplink beam performing the PUCCH transmission according to a downlink beam index of the downlink beam corresponding to the received PDCCH and/or PDSCH, and determining that the terminal performs the PUCCH transmission with the uplink beam corresponding to the uplink beam index; or
determining that the terminal determines a QCL relationship between a DMRS port of the PUCCH and a port on resources of a first reference signal according to a QCL relationship between a DMRS port of the received PDCCH and/or PDSCH and a port on resources of a second reference signal, and determining that the terminal performs the PUCCH transmission with the QCL relationship between the DMRS port of the PUCCH and the port on resources of the first reference signal; or
determining that the terminal determines a corresponding uplink BPL according to a QCL relationship between a DMRS port of the received PDCCH and/or PDSCH and a port on resources of a second reference signal, determines the uplink beam for the PUCCH transmission or a QCL relationship between a DMRS port of the PUCCH and a port on resources of a first reference signal according to the uplink BPL, and performs the PUCCH transmission with the uplink beam corresponding to the uplink BPL; or determines a QCL relationship between a DMRS port of the PUCCH and a port on resources of a first reference signal according to the uplink BPL, and performs the PUCCH transmission with the QCL relationship; or
determining that the terminal determines a corresponding uplink beam index according to a QCL relationship between a DMRS port of the received PDCCH and/or PDSCH and a port on resources of a second reference signal, and determining that the terminal performs the PUCCH transmission with the uplink beam corresponding to the uplink beam index.
the DMRS port of the PDCCH and/or PDSCH, and all ports or a specified port on resources of a configured second reference signal are of QCL; or
the QCL relationship between the DMRS port of the PUCCH and the port on resources of the first reference signal includes:
the DMRS port of the PUCCH and all ports or a specified port on resources of a configured first reference signal are of QCL.
when a plurality of PDCCHs and/or PDSCHs are received and different downlink beams are used for the plurality of PDCCHs and/or PDSCHs and ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs are fed back at the same time, determining a plurality of uplink beams corresponding to the plurality of downlink beams, and selecting one from the plurality of uplink beams as the uplink beam for the PUCCH transmission;
determining that the terminal performs the PUCCH transmission with the determined uplink beam in accordance with the process of:
transmitting the ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs on the same PUCCH with the determined uplink beam.
when a plurality of PDCCHs and/or PDSCHs are received and different beams are used for the plurality of PDCCHs and/or PDSCHs and ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs are fed back at the same time, selecting one from the plurality of downlink beams, and determining the uplink beam for the PUCCH transmission according to the selected downlink beam;
determining that the terminal performs the PUCCH transmission with the determined uplink beam in accordance with the process of:
transmitting the ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs on the same PUCCH with the determined uplink beam.
first way: determining a first uplink beam according to a downlink beam-x used by a received first PDCCH and/or PDSCH, and determining that the first uplink beam is used to transmit a PUCCH carrying ACK/NACK related to the first PDCCH and/or PDSCH, wherein the downlink beam-x and the first uplink beam are in a same group and have a correspondence, and/or, determining a second uplink beam according to a downlink beam-y used by a received second PDCCH and/or PDSCH, and using the second uplink beam to transmit a PUCCH carrying ACK/NACK related to the second PDCCH and/or PDSCH, wherein the downlink beam-y and the second uplink beam are in a same group and have a correspondence; wherein ACK/NACKs related to PDCCHs and/or PDSCHs transmitted by using different downlink beams in a same beam group are transmitted at different times;
second way: when a plurality of PDCCHs and/or PDSCHs transmitted by using different downlink beams in a same group are received and ACK/NACKs related to the PDCCHs and/or PDSCHs are fed back at the same time, determining a plurality of uplink beams corresponding to the plurality of downlink beams in the group, and selecting one from the plurality of uplink beams as the uplink beam for the PUCCH transmission, wherein the PUCCH carries the ACK/NACKs related to the PDCCHs and/or PDSCHs;
third way: when a plurality of PDCCHs and/or PDSCHs transmitted by using different downlink beams in a same group are received and ACK/NACKs related to the PDCCHs and/or PDSCHs are fed back at the same time, selecting one from the plurality of downlink beams, and determining the uplink beam for the PUCCH transmission according to the selected downlink beam, wherein the PUCCH carries the ACK/NACKs related to the PDCCHs and/or PDSCHs.
selecting one from the plurality of uplink beams as the uplink beam for the PUCCH transmission according to pre-configured or pre-agreed priorities of uplink beams or cells; or
when the plurality of uplink beams contain a pre-configured or pre-agreed uplink primary beam, determining the uplink primary beam as the uplink beam for the PUCCH transmission; and when the at least one uplink beam does not contain the uplink primary beam, determining a secondary beam with a certain index in the at least one uplink beam as the uplink beam for the PUCCH transmission; or
when there is an uplink beam corresponding to a pre-configured or pre-agreed primary cell in the plurality of uplink beams, taking the uplink beam corresponding to the primary cell as the uplink beam for the PUCCH transmission; and when there is no uplink beam corresponding to the primary cell in the at least one uplink beam, taking an uplink beam corresponding to a secondary cell as the uplink beam for the PUCCH transmission.
selecting one downlink beam according to pre-configured or pre-agreed uplink beam priorities, beam group priorities or cell priorities, and determining the uplink beam for the PUCCH transmission according to the selected downlink beam; or
when a PDCCH and/or PDSCH transmitted by using a downlink primary beam is received, determining the uplink beam for the PUCCH transmission according to the downlink primary beam, and/or, when the PDCCH and/or PDSCH transmission is received on a primary cell, determining the uplink beam for the PUCCH transmission according to a downlink beam corresponding to the primary cell; and when no PDCCH and/or PDSCH transmitted by using the downlink primary beam is received or when no PDCCH and/or PDSCH transmission is received on the primary cell, determining the uplink beam for the PUCCH transmission according to a downlink secondary beam with a certain index used by the received PDCCH and/or PDSCH transmission, and/or, determining the uplink beam for the PUCCH transmission according to a downlink beam corresponding to a secondary cell receiving the PDCCH and/or PDSCH transmission; wherein the downlink primary beam and the primary cell are pre-configured or pre-agreed; or
when a PDCCH and/or PDSCH transmitted by using a downlink beam in a downlink primary beam group is received, determining an uplink primary beam corresponding to the primary beam group as the uplink beam for the PUCCH transmission, wherein the primary beam group and the uplink primary beam corresponding to the primary beam group are pre-configured or pre-defined; and when no PDCCH and/or PDSCH transmitted by using any downlink beam in the downlink primary beam group is received, if a PDCCH and/or PDSCH transmitted by using a downlink beam in a downlink secondary beam group is received, then determining an uplink secondary beam corresponding to the downlink secondary beam group as the uplink beam for the PUCCH transmission; and if there are a plurality of downlink secondary beam groups, then selecting one downlink secondary beam group in accordance with priorities of the downlink secondary beam groups or an order of the index of the downlink secondary beam groups.
Brief Description of the Drawings
Fig.1 is a flow chart of a PUCCH transmission method according to an embodiment of the invention;
Fig.2 is a flow chart of another PUCCH transmission method according to an embodiment of the invention;
Fig.3 is a structural block diagram of a user equipment according to an embodiment of the invention;
Fig.4 is a structural schematic diagram of a user equipment according to an embodiment of the invention;
Fig.5 is a structural schematic diagram of a device according to an embodiment of the invention.
Detailed Description of Embodiments
First embodiment
Step 101: determining an uplink beam for the PUCCH transmission according to the downlink beam used by the PDCCH and/or PDSCH;
Step 102: performing the PUCCH transmission with the determined uplink beam.
first type: BPL; the BPL from base station to terminal and the BPL from terminal to base station may be obtained by beam training, and if the reciprocity between the uplink and downlink channels exists, the BPL from terminal to base station may be obtained according to the BPL from base station to terminal through the reciprocity, that is, the beam used for the uplink transmission may be determined according to the beam used for the downlink transmission;
or second type: beam index; the results of different sending and receiving combinations (e.g., the used combination of the pre-coding matrix) obtained by measuring/training on the configured resources of multiple first reference signals are recorded, directly defined as different beams and represented by the beam indexes, the uplink and downlink beams may be defined respectively, and if the reciprocity between the uplink and downlink channels exists, the corresponding uplink beam may be obtained according to the downlink beam through the reciprocity;
or third type: the QCL relationship between the DMRS port of the PUCCH and all ports or a certain port on resources of a first reference signal; where the first reference signal is one or more of CSI-RS, SRS and other signals; that is, the resources, or the resources and ports, of multiple first reference signal are pre-configured. In the case of different resources, or different combinations of resources and ports, different sending and receiving combination results obtained by measuring/training are recorded as the transmission scheme of the corresponding resource, or the corresponding resource and port. When a terminal is notified of the resource ,or the resource and port, of a first reference signal, that is, the terminal is notified of that the DMRS of the channel to be transmitted and the notified port of the first reference signal resource have the QCL relationship, namely, the transmission scheme on the resource, or the corresponding resource and port are required to perform the transmission (receiving or sending), i.e., the recorded pre-coding matrix corresponding to receiving or sending is used to perform the transmission. If the reciprocity between the uplink and downlink channels exists, the uplink QCL relationship may be obtained according to the downlink QCL relationship.
determining the corresponding uplink Beam Pair Linkage, BPL, according to the downlink BPL corresponding to the received PDCCH and/or PDSCH, determining the uplink beam for the PUCCH transmission or the QCL relationship between the DMRS port of the PUCCH and the port on resources of a first reference signal according to the uplink BPL, and performing the PUCCH transmission with the uplink beam corresponding to the uplink BPL; or determining the QCL relationship between the DMRS port of the PUCCH and the port on resources of a first reference signal according to the uplink BPL, and performing the PUCCH transmission with the QCL relationship; or
determining the corresponding uplink beam index according to the downlink BPL corresponding to the received PDCCH and/or PDSCH, and performing the PUCCH transmission with the uplink beam corresponding to the uplink beam index; or
determining the QCL relationship between the DMRS port of the PUCCH and the port on resources of a first reference signal according to the downlink BPL corresponding to the received PDCCH and/or PDSCH, and performing the PUCCH transmission with the QCL relationship; or
determining the uplink beam index for identifying the uplink beam performing the PUCCH transmission according to the downlink beam index of the downlink beam corresponding to the received PDCCH and/or PDSCH, and performing the PUCCH transmission with the uplink beam corresponding to the uplink beam index; or
determining the QCL relationship between the DMRS port of the PUCCH and the port on resources of a first reference signal according to the QCL relationship between the DMRS port of the received PDCCH and/or PDSCH and the port on resources of a second reference signal, and performing the PUCCH transmission with the QCL relationship between the DMRS port of the PUCCH and the port on resources of the first reference signal; or
determining the corresponding uplink BPL according to the QCL relationship between the DMRS port of the received PDCCH and/or PDSCH and the port on resources of a second reference signal, determining the uplink beam for the PUCCH transmission or the QCL relationship between the DMRS port of the PUCCH and the port on resources of a first reference signal according to the uplink BPL, and performing the PUCCH transmission with the uplink beam corresponding to the uplink BPL; or determining the QCL relationship between the DMRS port of the PUCCH and the port on resources of a first reference signal according to the uplink BPL, and performing the PUCCH transmission with the QCL relationship; or
determining the corresponding uplink beam index according to the QCL relationship between the DMRS port of the received PDCCH and/or PDSCH and the port on resources of a second reference signal, and performing the PUCCH transmission with the uplink beam corresponding to the uplink beam index.
the DMRS port of the PDCCH and/or PDSCH, and all ports or a specified port on resources of a configured second reference signal are of QCL; or
the QCL relationship between the DMRS port of the PUCCH and the port on resources of the first reference signal includes:
the DMRS port of the PUCCH and all ports or a specified port on resources of a configured first reference signal are of QCL.
when a plurality of PDCCHs and/or PDSCHs are received, different downlink beams are used for the plurality of PDCCHs and/or PDSCHs and the ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs are fed back at the same time, determining a plurality of uplink beams corresponding to the plurality of downlink beams, and selecting one from the plurality of uplink beams as the uplink beam for the PUCCH transmission;
performing the PUCCH transmission with the determined uplink beam, includes:
transmitting the ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs on the same PUCCH with the determined uplink beam.
when a plurality of PDCCHs and/or PDSCHs are received, different beams are used for the plurality of PDCCHs and/or PDSCHs and the ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs are fed back at the same time, selecting one from the plurality of downlink beams, and determining the uplink beam for the PUCCH transmission according to the selected downlink beam;
performing the PUCCH transmission with the determined uplink beam, includes:
transmitting the ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs on the same PUCCH with the determined uplink beam.
first way: determining a first uplink beam according to the downlink beam-x used for a received first PDCCH and/or PDSCH, and determining that the first uplink beam is used to transmit the PUCCH carrying the ACK/NACK related to the first PDCCH and/or PDSCH, where the downlink beam-x and the first uplink beam are in a same group and have a correspondence, and/or, determining a second uplink beam according to the downlink beam-y used by a received second PDCCH and/or PDSCH, and using the second uplink beam to transmit the PUCCH carrying the ACK/NACK related to the second PDCCH and/or PDSCH, where the downlink beam-y and the second uplink beam are in a same group and have a correspondence; where the ACK/NACKs related to the PDCCHs and/or PDSCHs transmitted by different downlink beams in a same beam group are transmitted at different times;
second way: when a plurality of PDCCHs and/or PDSCHs transmitted by using different downlink beams in a same group are received and the ACK/NACKs related to the PDCCHs and/or PDSCHs are fed back at the same time, determining a plurality of uplink beams corresponding to the plurality of downlink beams in the group, and selecting one from the plurality of uplink beams as the uplink beam for the PUCCH transmission, where the PUCCH carries the ACK/NACKs related to the PDCCHs and/or PDSCHs;
third way: when a plurality of PDCCHs and/or PDSCHs transmitted by using different downlink beams in a same group are received and the ACK/NACKs related to the PDCCHs and/or PDSCHs are fed back at the same time, selecting one from the plurality of downlink beams, and determining the uplink beam for the PUCCH transmission according to the selected downlink beam, where the PUCCH carries the ACK/NACKs related to the PDCCHs and/or PDSCHs.
selecting one from the plurality of uplink beams as the uplink beam for the PUCCH transmission according to the pre-configured or pre-agreed priorities of the uplink beams or cells; for example, the certain number order of the beams or cells is taken as the priority (ascending or descending order); or
when the plurality of uplink beams contain a pre-configured or pre-agreed uplink primary beam, determining the uplink primary beam as the uplink beam for the PUCCH transmission; and when the at least one uplink beam does not contain the uplink primary beam, determining a secondary beam with a certain index in the at least one uplink beam as the uplink beam for the PUCCH transmission (for example, numbering from smallest to largest or from largest to smallest); or
when there is the uplink beam corresponding to the pre-configured or pre-agreed primary cell in the plurality of uplink beams, taking the uplink beam corresponding to the primary cell as the uplink beam for the PUCCH transmission; and when there is no uplink beam corresponding to the primary cell in the at least one uplink beam, taking the uplink beam corresponding to the secondary cell as the uplink beam for the PUCCH transmission; if there are a plurality of secondary cells, selecting the uplink beam corresponding to the secondary cell with the certain number (for example, numbering from smallest to largest or from largest to smallest).
selecting one downlink beam according to the pre-configured or pre-agreed downlink beam priorities, beam group priorities or cell priorities, and determining the uplink beam for the PUCCH transmission according to the selected downlink beam; for example, the certain number order of the beams or beam groups or cells is taken as the priority (ascending or descending order); or
when the PDCCH and/or PDSCH transmitted by using the downlink primary beam is received, determining the uplink beam for the PUCCH transmission according to the downlink primary beam, and/or, when the PDCCH and/or PDSCH transmission is received on the primary cell, determining the uplink beam for the PUCCH transmission according to the downlink beam corresponding to the primary cell; and when no PDCCH and/or PDSCH transmitted by using the downlink primary beam is received or when no PDCCH and/or PDSCH transmission is received on the primary cell, determining the uplink beam for the PUCCH transmission according to the downlink secondary beam with the certain index (for example, numbering from smallest to largest or from largest to smallest) used by the received PDCCH and/or PDSCH transmission, and/or, determining the uplink beam for the PUCCH transmission according to the downlink beam corresponding to the secondary cell receiving the PDCCH and/or PDSCH transmission; if there are a plurality of secondary cells, determining the uplink beam for the PUCCH transmission according to the downlink beam corresponding to the secondary cell with the certain number (for example, numbering from smallest to largest or from largest to smallest) receiving the PDCCH and/or PDSCH transmission; where the downlink primary beam and the primary cell are pre-configured or pre-agreed; or
when the PDCCH and/or PDSCH transmitted by using the downlink beam in the downlink primary beam group is received, determining the uplink primary beam corresponding to the primary beam group as the uplink beam for the PUCCH transmission, where the primary beam group and the uplink primary beam corresponding to the primary beam group are pre-configured or pre-defined; and when no PDCCH and/or PDSCH transmitted by using any downlink beam in the downlink primary beam group is received, if the PDCCH and/or PDSCH transmitted by using the downlink beam in the downlink secondary beam group is received, then determining the uplink secondary beam corresponding to the downlink secondary beam group as the uplink beam for the PUCCH transmission; and if there are a plurality of downlink secondary beam groups, then selecting one downlink secondary beam group in accordance with the priorities of the downlink secondary beam groups or the order of the index of the downlink secondary beam groups (for example, numbering from smallest to largest or from largest to smallest).
Second embodiment
Step 201: determining that a terminal determines the uplink beam for the PUCCH transmission according to the downlink beam used by the PDCCH and/or PDSCH;
Step 202: determining that the terminal performs the PUCCH transmission with the determined uplink beam.
determining that the terminal determines the corresponding uplink Beam Pair Linkage, BPL, according to the downlink BPL corresponding to the received PDCCH and/or PDSCH, determines the uplink beam for the PUCCH transmission or the QCL relationship between the DMRS port of the PUCCH and the port on resources of a first reference signal according to the uplink BPL, and performs the PUCCH transmission with the uplink beam corresponding to the uplink BPL; or determines the QCL relationship between the DMRS port of the PUCCH and the port on resources of a first reference signal according to the uplink BPL, and performs the PUCCH transmission with the QCL relationship; or
determining that the terminal determines the corresponding uplink beam index according to the downlink BPL corresponding to the received PDCCH and/or PDSCH, and determining that the terminal performs the PUCCH transmission with the uplink beam corresponding to the uplink beam index; or
determining that the terminal determines the QCL relationship between the DMRS port of the PUCCH and the port on resources of a first reference signal according to the downlink BPL corresponding to the received PDCCH and/or PDSCH, and determining that the terminal performs the PUCCH transmission with the QCL relationship; or
determining that the terminal determines the uplink beam index for identifying the uplink beam performing the PUCCH transmission according to the downlink beam index of the downlink beam corresponding to the received PDCCH and/or PDSCH, and determining that the terminal performs the PUCCH transmission with the uplink beam corresponding to the uplink beam index; or
determining that the terminal determines the QCL relationship between the DMRS port of the PUCCH and the port on resources of a first reference signal according to the QCL relationship between the DMRS port of the received PDCCH and/or PDSCH and the port on resources of a second reference signal, and determining that the terminal performs the PUCCH transmission with the QCL relationship between the DMRS port of the PUCCH and the port on resources of the first reference signal; or
determining that the terminal determines the corresponding uplink BPL according to the QCL relationship between the DMRS port of the received PDCCH and/or PDSCH and the port on resources of a second reference signal, determines the uplink beam for the PUCCH transmission or the QCL relationship between the DMRS port of the PUCCH and the port on resources of a first reference signal according to the uplink BPL, and performs the PUCCH transmission with the uplink beam corresponding to the uplink BPL; or determines the QCL relationship between the DMRS port of the PUCCH and the port on resources of a first reference signal according to the uplink BPL, and performs the PUCCH transmission with the QCL relationship; or
determining that the terminal determines the corresponding uplink beam index according to the QCL relationship between the DMRS port of the received PDCCH and/or PDSCH and the port on resources of a second reference signal, and determining that the terminal performs the PUCCH transmission with the uplink beam corresponding to the uplink beam index.
the DMRS port of the PDCCH and/or PDSCH, and all ports or a specified port on resources of a configured second reference signal are of QCL; or
the QCL relationship between the DMRS port of the PUCCH and the port on resources of the first reference signal includes:
the DMRS port of the PUCCH and all ports or a specified port on resources of a configured first reference signal are of QCL.
when a plurality of PDCCHs and/or PDSCHs are received, different downlink beams are used for the plurality of PDCCHs and/or PDSCHs and the ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs are fed back at the same time, determining a plurality of uplink beams corresponding to the plurality of downlink beams, and selecting one from the plurality of uplink beams as the uplink beam for the PUCCH transmission;
determining that the terminal performs the PUCCH transmission with the determined uplink beam in accordance with the process of:
transmitting the ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs on the same PUCCH with the determined uplink beam.
when a plurality of PDCCHs and/or PDSCHs are received, different beams are used for the plurality of PDCCHs and/or PDSCHs and the ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs are fed back at the same time, selecting one from the plurality of downlink beams, and determining the uplink beam for the PUCCH transmission according to the selected downlink beam;
determining that the terminal performs the PUCCH transmission with the determined uplink beam in accordance with the process of:
transmitting the ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs on the same PUCCH with the determined uplink beam.
first way: determining a first uplink beam according to the downlink beam-x used for a received first PDCCH and/or PDSCH, and determining that the first uplink beam is used to transmit the PUCCH carrying the ACK/NACK related to the first PDCCH and/or PDSCH, where the downlink beam-x and the first uplink beam are in a same group and have a correspondence, and/or, determining a second uplink beam according to the downlink beam-y used by a received second PDCCH and/or PDSCH, and using the second uplink beam to transmit the PUCCH carrying the ACK/NACK related to the second PDCCH and/or PDSCH, where the downlink beam-y and the second uplink beam are in a same group and have a correspondence; where the ACK/NACKs related to the PDCCHs and/or PDSCHs transmitted by different downlink beams in a same beam group are transmitted at different times;
second way: when a plurality of PDCCHs and/or PDSCHs transmitted by using different downlink beams in a same group are received and the ACK/NACKs related to the PDCCHs and/or PDSCHs are fed back at the same time, determining a plurality of uplink beams corresponding to the plurality of downlink beams in the group, and selecting one from the plurality of uplink beams as the uplink beam for the PUCCH transmission, where the PUCCH carries the ACK/NACKs related to the PDCCHs and/or PDSCHs;
third way: when a plurality of PDCCHs and/or PDSCHs transmitted by using different downlink beams in a same group are received and the ACK/NACKs related to the PDCCHs and/or PDSCHs are fed back at the same time, selecting one from the plurality of downlink beams, and determining the uplink beam for the PUCCH transmission according to the selected downlink beam, where the PUCCH carries the ACK/NACKs related to the PDCCHs and/or PDSCHs.
selecting one from the plurality of uplink beams as the uplink beam for the PUCCH transmission according to the pre-configured or pre-agreed priorities of uplink beams or cells; or
when the plurality of uplink beams contain a pre-configured or pre-agreed uplink primary beam, determining the uplink primary beam as the uplink beam for the PUCCH transmission; and when the at least one uplink beam does not contain the uplink primary beam, determining a secondary beam with a certain index in the at least one uplink beam as the uplink beam for the PUCCH transmission; or
when there is the uplink beam corresponding to the pre-configured or pre-agreed primary cell in the plurality of uplink beams, taking the uplink beam corresponding to the primary cell as the uplink beam for the PUCCH transmission; and when there is no uplink beam corresponding to the primary cell in the at least one uplink beam, taking the uplink beam corresponding to the secondary cell as the uplink beam for the PUCCH transmission.
selecting one downlink beam according to the pre-configured or pre-agreed downlink beam priorities, beam group priorities or cell priorities, and determining the uplink beam for the PUCCH transmission according to the selected downlink beam; or
when the PDCCH and/or PDSCH transmitted by using the downlink primary beam is received, determining the uplink beam for the PUCCH transmission according to the downlink primary beam, and/or, when the PDCCH and/or PDSCH transmission is received on the primary cell, determining the uplink beam for the PUCCH transmission according to the downlink beam corresponding to the primary cell; and when no PDCCH and/or PDSCH transmitted by using the downlink primary beam is received or when no PDCCH and/or PDSCH transmission is received on the primary cell, determining the uplink beam for the PUCCH transmission according to the downlink secondary beam with the certain index used by the received PDCCH and/or PDSCH transmission, and/or, determining the uplink beam for the PUCCH transmission according to the downlink beam corresponding to the secondary cell receiving the PDCCH and/or PDSCH transmission; if there are a plurality of secondary cells, determining the uplink beam for the PUCCH transmission according to the downlink beam corresponding to the secondary cell with the certain number receiving the PDCCH and/or PDSCH transmission; where the downlink primary beam and the primary cell are pre-configured or pre-agreed; or
when the PDCCH and/or PDSCH transmitted by using the downlink beam in the downlink primary beam group is received, determining the uplink primary beam corresponding to the primary beam group as the uplink beam for the PUCCH transmission, where the primary beam group and the uplink primary beam corresponding to the primary beam group are pre-configured or pre-defined; and when no PDCCH and/or PDSCH transmitted by using any downlink beam in the downlink primary beam group is received, if the PDCCH and/or PDSCH transmitted by using the downlink beam in the downlink secondary beam group is received, then determining the uplink secondary beam corresponding to the downlink secondary beam group as the uplink beam for the PUCCH transmission; and if there are a plurality of downlink secondary beam groups, then selecting one downlink secondary beam group in accordance with the priorities of the downlink secondary beam groups or the order of the index of the downlink secondary beam groups.
Third embodiment
the determining unit 301 is configured to determine the uplink beam for the PUCCH transmission according to the downlink beam used by the PDCCH and/or PDSCH;
the transmission unit 302 is configured to perform the PUCCH transmission with the determined uplink beam.
the DMRS port of the PDCCH and/or PDSCH, and all ports or a specified port on resources of a configured second reference signal are of QCL; or
the QCL relationship between the DMRS port of the PUCCH and the port on resources of the first reference signal includes:
the DMRS port of the PUCCH and all ports or a specified port on resources of a configured first reference signal are of QCL.
when a plurality of PDCCHs and/or PDSCHs are received, different downlink beams are used for the plurality of PDCCHs and/or PDSCHs and the ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs are fed back at the same time, determine a plurality of uplink beams corresponding to the plurality of downlink beams, and select one from the plurality of uplink beams as the uplink beam for the PUCCH transmission;
the transmission unit 302 is configured to:
transmit the ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs on the same PUCCH with the determined uplink beam.
when a plurality of PDCCHs and/or PDSCHs are received, different beams are used for the plurality of PDCCHs and/or PDSCHs and the ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs are fed back at the same time, select one from the plurality of downlink beams, and determine the uplink beam for the PUCCH transmission according to the selected downlink beam;
the transmission unit 302 is configured to:
transmit the ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs on the same PUCCH with the determined uplink beam.
first way: determine a first uplink beam according to the downlink beam-x used by a received first PDCCH and/or PDSCH, and determine that the first uplink beam is used to transmit the PUCCH carrying the ACK/NACK related to the first PDCCH and/or PDSCH, where the downlink beam-x and the first uplink beam are in a same group and have a correspondence, and/or, determine a second uplink beam according to the downlink beam-y used by a received second PDCCH and/or PDSCH, and use the second uplink beam to transmit the PUCCH carrying the ACK/NACK related to the second PDCCH and/or PDSCH, where the downlink beam-y and the second uplink beam are in a same group and have a correspondence; where the ACK/NACKs related to the PDCCHs and/or PDSCHs transmitted by using different downlink beams in a same beam group are transmitted at different times;
second way: when a plurality of PDCCHs and/or PDSCHs transmitted by using different downlink beams in a same group are received and the ACK/NACKs related to the PDCCHs and/or PDSCHs are fed back at the same time, determine a plurality of uplink beams corresponding to the plurality of downlink beams in the group, and select one from the plurality of uplink beams as the uplink beam for the PUCCH transmission, where the PUCCH carries the ACK/NACKs related to the PDCCHs and/or PDSCHs;
third way: when a plurality of PDCCHs and/or PDSCHs transmitted by using different downlink beams in a same group are received and the ACK/NACKs related to the PDCCHs and/or PDSCHs are fed back at the same time, select one from the plurality of downlink beams, and determine the uplink beam for the PUCCH transmission according to the selected downlink beam, where the PUCCH carries the ACK/NACKs related to the PDCCHs and/or PDSCHs.
select one from the plurality of uplink beams as the uplink beam for the PUCCH transmission according to the pre-configured or pre-agreed priorities of uplink beams or cells; or
when the plurality of uplink beams contain a pre-configured or pre-agreed uplink primary beam, determine the uplink primary beam as the uplink beam for the PUCCH transmission; and when the at least one uplink beam does not contain the uplink primary beam, determine the secondary beam with a certain index in the at least one uplink beam as the uplink beam for the PUCCH transmission; or
when there is an uplink beam corresponding to the pre-configured or pre-agreed primary cell in the plurality of uplink beams, take the uplink beam corresponding to the primary cell as the uplink beam for the PUCCH transmission; and when there is no uplink beam corresponding to the primary cell in the at least one uplink beam, take the uplink beam corresponding to the secondary cell as the uplink beam for the PUCCH transmission.
select one downlink beam according to the pre-configured or pre-agreed downlink beam priorities, beam group priorities or cell priorities, and determine the uplink beam for the PUCCH transmission according to the selected downlink beam; or
when the PDCCH and/or PDSCH transmitted by using the downlink primary beam is received, determine the uplink beam for the PUCCH transmission according to the downlink primary beam, and/or, when the PDCCH and/or PDSCH transmission is received on the primary cell, determine the uplink beam for the PUCCH transmission according to the downlink beam corresponding to the primary cell; and when no PDCCH and/or PDSCH transmitted by using the downlink primary beam is received or when no PDCCH and/or PDSCH transmission is received on the primary cell, determine the uplink beam for the PUCCH transmission according to the downlink secondary beam with the certain index used by the received PDCCH and/or PDSCH transmission, and/or, determine the uplink beam for the PUCCH transmission according to the downlink beam corresponding to the secondary cell receiving the PDCCH and/or PDSCH transmission; where the downlink primary beam and the primary cell are pre-configured or pre-agreed; or
when the PDCCH and/or PDSCH transmitted by using the downlink beam in the downlink primary beam group is received, determine the uplink primary beam corresponding to the primary beam group as the uplink beam for the PUCCH transmission, where the primary beam group and the uplink primary beam corresponding to the primary beam group are pre-configured or pre-defined; and when no PDCCH and/or PDSCH transmitted by using any downlink beam in the downlink primary beam group is received, if the PDCCH and/or PDSCH transmitted by using the downlink beam in the downlink secondary beam group is received, then determine the uplink secondary beam corresponding to the downlink secondary beam group as the uplink beam for the PUCCH transmission; and if there are a plurality of downlink secondary beam groups, then select one downlink secondary beam group in accordance with the priorities of the downlink secondary beam groups or the order of the index of the downlink secondary beam groups.
Fourth embodiment
determine that the terminal determines the corresponding uplink Beam Pair Linkage, BPL, according to the downlink BPL corresponding to the received PDCCH and/or PDSCH, determines the uplink beam for the PUCCH transmission or the QCL relationship between the DMRS port of the PUCCH and the port on resources of a first reference signal according to the uplink BPL, and performs the PUCCH transmission with the uplink beam corresponding to the uplink BPL; or determines the QCL relationship between the DMRS port of the PUCCH and the port on resources of a first reference signal according to the uplink BPL, and performs the PUCCH transmission with the QCL relationship; or
determine that the terminal determines the corresponding uplink beam index according to the downlink BPL corresponding to the received PDCCH and/or PDSCH, and determine that the terminal performs the PUCCH transmission with the uplink beam corresponding to the uplink beam index; or
determine that the terminal determines the QCL relationship between the DMRS port of the PUCCH and the port on resources of a first reference signal according to the downlink BPL corresponding to the received PDCCH and/or PDSCH, and determine that the terminal performs the PUCCH transmission with the QCL relationship; or
determine that the terminal determines the uplink beam index for identifying the uplink beam performing the PUCCH transmission according to the downlink beam index of the downlink beam corresponding to the received PDCCH and/or PDSCH, and determine that the terminal performs the PUCCH transmission with the uplink beam corresponding to the uplink beam index; or
determine that the terminal determines the QCL relationship between the DMRS port of the PUCCH and the port on resources of a first reference signal according to the QCL relationship between the DMRS port of the received PDCCH and/or PDSCH and the port on resources of a second reference signal, and determine that the terminal performs the PUCCH transmission with the QCL relationship between the DMRS port of the PUCCH and the port on resources of the first reference signal; or
determine that the terminal determines the corresponding uplink BPL according to the QCL relationship between the DMRS port of the received PDCCH and/or PDSCH and the port on resources of a second reference signal, determines the uplink beam for the PUCCH transmission or the QCL relationship between the DMRS port of the PUCCH and the port on resources of a first reference signal according to the uplink BPL, and performs the PUCCH transmission with the uplink beam corresponding to the uplink BPL; or determines the QCL relationship between the DMRS port of the PUCCH and the port on resources of a first reference signal according to the uplink BPL, and performs the PUCCH transmission with the QCL relationship; or
determine that the terminal determines the corresponding uplink beam index according to the QCL relationship between the DMRS port of the received PDCCH and/or PDSCH and the port on resources of a second reference signal, and determine that the terminal performs the PUCCH transmission with the uplink beam corresponding to the uplink beam index.
the DMRS port of the PDCCH and/or PDSCH and all ports or a specified port on resources of a configured second reference signal are of QCL; or
the QCL relationship between the DMRS port of the PUCCH and the port on resources of the first reference signal includes:
the DMRS port of the PUCCH and all ports or a specified port on resources of a configured first reference signal are of QCL.
when a plurality of PDCCHs and/or PDSCHs are received, different downlink beams are used for the plurality of PDCCHs and/or PDSCHs and the ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs are fed back at the same time, determine a plurality of uplink beams corresponding to the plurality of downlink beams, and select one from the plurality of uplink beams as the uplink beam for the PUCCH transmission;
determine that the terminal performs the PUCCH transmission with the determined uplink beam in accordance with the process of:
transmitting the ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs on the same PUCCH with the determined uplink beam.
when a plurality of PDCCHs and/or PDSCHs are received, different beams are used for the plurality of PDCCHs and/or PDSCHs and the ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs are fed back at the same time, select one from the plurality of downlink beams, and determine the uplink beam for the PUCCH transmission according to the selected downlink beam;
determine that the terminal performs the PUCCH transmission with the determined uplink beam in accordance with the process of:
transmitting the ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs on the same PUCCH with the determined uplink beam.
first way: determine a first uplink beam according to the downlink beam-x used for a received first PDCCH and/or PDSCH, and determine that the first uplink beam is used to transmit the PUCCH carrying the ACK/NACK related to the first PDCCH and/or PDSCH, where the downlink beam-x and the first uplink beam are in a same group and have a correspondence, and/or, determine a second uplink beam according to the downlink beam-y used by a received second PDCCH and/or PDSCH, and use the second uplink beam to transmit the PUCCH carrying the ACK/NACK related to the second PDCCH and/or PDSCH, where the downlink beam-y and the second uplink beam are in a same group and have a correspondence; where the ACK/NACKs related to the PDCCHs and/or PDSCHs transmitted by different downlink beams in a same beam group are transmitted at different times;
second way: when a plurality of PDCCHs and/or PDSCHs transmitted by using different downlink beams in a same group are received and the ACK/NACKs related to the PDCCHs and/or PDSCHs are fed back at the same time, determine a plurality of uplink beams corresponding to the plurality of downlink beams in the group, and select one from the plurality of uplink beams as the uplink beam for the PUCCH transmission, where the PUCCH carries the ACK/NACKs related to the PDCCHs and/or PDSCHs;
third way: when a plurality of PDCCHs and/or PDSCHs transmitted by using different downlink beams in a same group are received and the ACK/NACKs related to the PDCCHs and/or PDSCHs are fed back at the same time, select one from the plurality of downlink beams, and determine the uplink beam for the PUCCH transmission according to the selected downlink beam, where the PUCCH carries the ACK/NACKs related to the PDCCHs and/or PDSCHs.
select one from the plurality of uplink beams as the uplink beam for the PUCCH transmission according to the pre-configured or pre-agreed priorities of uplink beams or cells; or
when the plurality of uplink beams contain a pre-configured or pre-agreed uplink primary beam, determine the uplink primary beam as the uplink beam for the PUCCH transmission; and when the at least one uplink beam does not contain the uplink primary beam, determine a secondary beam with a certain index in the at least one uplink beam as the uplink beam for the PUCCH transmission; or
when there is the uplink beam corresponding to the pre-configured or pre-agreed primary cell in the plurality of uplink beams, take the uplink beam corresponding to the primary cell as the uplink beam for the PUCCH transmission; and when there is no uplink beam corresponding to the primary cell in the at least one uplink beam, take the uplink beam corresponding to the secondary cell as the uplink beam for the PUCCH transmission.
select one downlink beam according to the pre-configured or pre-agreed downlink beam priorities, beam group priorities or cell priorities, and determining the uplink beam for the PUCCH transmission according to the selected downlink beam; or
when the PDCCH and/or PDSCH transmitted by using the downlink primary beam is received, determine the uplink beam for the PUCCH transmission according to the downlink primary beam, and/or, when the PDCCH and/or PDSCH transmission is received on the primary cell, determine the uplink beam for the PUCCH transmission according to the downlink beam corresponding to the primary cell; and when no PDCCH and/or PDSCH transmitted by using the downlink primary beam is received or when no PDCCH and/or PDSCH transmission is received on the primary cell, determine the uplink beam for the PUCCH transmission according to the downlink secondary beam with the certain index used by the received PDCCH and/or PDSCH transmission, and/or, determine the uplink beam for the PUCCH transmission according to the downlink beam corresponding to the secondary cell receiving the PDCCH and/or PDSCH transmission; if there are a plurality of secondary cells, determine the uplink beam for the PUCCH transmission according to the downlink beam corresponding to the secondary cell with the certain number receiving the PDCCH and/or PDSCH transmission; where the downlink primary beam and the primary cell are pre-configured or pre-agreed; or
when the PDCCH and/or PDSCH transmitted by using the downlink beam in the downlink primary beam group is received, determine the uplink primary beam corresponding to the primary beam group as the uplink beam for the PUCCH transmission, where the primary beam group and the uplink primary beam corresponding to the primary beam group are pre-configured or pre-defined; and when no PDCCH and/or PDSCH transmitted by using any downlink beam in the downlink primary beam group is received, if the PDCCH and/or PDSCH transmitted by using the downlink beam in the downlink secondary beam group is received, then determine the uplink secondary beam corresponding to the downlink secondary beam group as the uplink beam for the PUCCH transmission; and if there are a plurality of downlink secondary beam groups, then select one downlink secondary beam group in accordance with the priorities of the downlink secondary beam groups or the order of the index of the downlink secondary beam groups.
Fifth embodiment
determining the uplink beam for the PUCCH transmission according to the downlink beam used by the PDCCH and/or PDSCH;
controlling the transceiver 403 to perform the PUCCH transmission with the determined uplink beam.
the DMRS port of the PDCCH and/or PDSCH, and all ports or a specified port on resources of a configured second reference signal are of QCL; or
the QCL relationship between the DMRS port of the PUCCH and the port on resources of the first reference signal includes:
the DMRS port of the PUCCH and all ports or a specified port on resources of a configured first reference signal are of QCL.
when a plurality of PDCCHs and/or PDSCHs are received, different downlink beams are used for the plurality of PDCCHs and/or PDSCHs and the ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs are fed back at the same time, determining a plurality of uplink beams corresponding to the plurality of downlink beams, and selecting one from the plurality of uplink beams as the uplink beam for the PUCCH transmission;
controlling the transceiver 403 to perform the PUCCH transmission with the determined uplink beam, includes:
controlling the transceiver 403 to transmit the ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs on the same PUCCH with the determined uplink beam.
when a plurality of PDCCHs and/or PDSCHs are received, different beams are used for the plurality of PDCCHs and/or PDSCHs and the ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs are fed back at the same time, selecting one from the plurality of downlink beams, and controlling the transceiver 403 to determine the uplink beam for the PUCCH transmission according to the selected downlink beam;
controlling the transceiver 403 to perform the PUCCH transmission with the determined uplink beam, includes:
controlling the transceiver 403 to transmit the ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs on the same PUCCH with the determined uplink beam.
first way: determining a first uplink beam according to the downlink beam-x used for a received first PDCCH and/or PDSCH, and determining that the first uplink beam is used to transmit the PUCCH carrying the ACK/NACK related to the first PDCCH and/or PDSCH, where the downlink beam-x and the first uplink beam are in a same group and have a correspondence, and/or, determining a second uplink beam according to the downlink beam-y used by a received second PDCCH and/or PDSCH, and using the second uplink beam to transmit the PUCCH carrying the ACK/NACK related to the second PDCCH and/or PDSCH, where the downlink beam-y and the second uplink beam are in a same group and have a correspondence; where the ACK/NACKs related to the PDCCHs and/or PDSCHs transmitted by different downlink beams in a same beam group are transmitted at different times;
second way: when a plurality of PDCCHs and/or PDSCHs transmitted by using different downlink beams in a same group are received and the ACK/NACKs related to the PDCCHs and/or PDSCHs are fed back at the same time, determining a plurality of uplink beams corresponding to the plurality of downlink beams in the group, and selecting one from the plurality of uplink beams as the uplink beam for the PUCCH transmission, where the PUCCH carries the ACK/NACKs related to the PDCCHs and/or PDSCHs;
third way: when a plurality of PDCCHs and/or PDSCHs transmitted by using different downlink beams in a same group are received and the ACK/NACKs related to the PDCCHs and/or PDSCHs are fed back at the same time, selecting one from the plurality of downlink beams, and determining the uplink beam for the PUCCH transmission according to the selected downlink beam, where the PUCCH carries the ACK/NACKs related to the PDCCHs and/or PDSCHs.
selecting one from the plurality of uplink beams as the uplink beam for the PUCCH transmission according to the pre-configured or pre-agreed priorities of the uplink beams or cells; or
when the plurality of uplink beams contain a pre-configured or pre-agreed uplink primary beam, determining the uplink primary beam as the uplink beam for the PUCCH transmission; and when the at least one uplink beam does not contain the uplink primary beam, determining a secondary beam with a certain index in the at least one uplink beam as the uplink beam for the PUCCH transmission; or
when there is the uplink beam corresponding to the pre-configured or pre-agreed primary cell in the plurality of uplink beams, taking the uplink beam corresponding to the primary cell as the uplink beam for the PUCCH transmission; and when there is no uplink beam corresponding to the primary cell in the at least one uplink beam, taking the uplink beam corresponding to the secondary cell as the uplink beam for the PUCCH transmission.
selecting one downlink beam according to the pre-configured or pre-agreed downlink beam priorities, beam group priorities or cell priorities, and determining the uplink beam for the PUCCH transmission according to the selected downlink beam; or
when the PDCCH and/or PDSCH transmitted by using the downlink primary beam is received, determining the uplink beam for the PUCCH transmission according to the downlink primary beam, and/or, when the PDCCH and/or PDSCH transmission is received on the primary cell, determining the uplink beam for the PUCCH transmission according to the downlink beam corresponding to the primary cell; and when no PDCCH and/or PDSCH transmitted by using the downlink primary beam is received or when no PDCCH and/or PDSCH transmission is received on the primary cell, determining the uplink beam for the PUCCH transmission according to the downlink secondary beam with the certain index used by the received PDCCH and/or PDSCH transmission, and/or, determining the uplink beam for the PUCCH transmission according to the downlink beam corresponding to the secondary cell receiving the PDCCH and/or PDSCH transmission; if there are a plurality of secondary cells, determining the uplink beam for the PUCCH transmission according to the downlink beam corresponding to the secondary cell with the certain number receiving the PDCCH and/or PDSCH transmission; where the downlink primary beam and the primary cell are pre-configured or pre-agreed; or
when the PDCCH and/or PDSCH transmitted by using the downlink beam in the downlink primary beam group is received, determining the uplink primary beam corresponding to the primary beam group as the uplink beam for the PUCCH transmission, where the primary beam group and the uplink primary beam corresponding to the primary beam group are pre-configured or pre-defined; and when no PDCCH and/or PDSCH transmitted by using any downlink beam in the downlink primary beam group is received, if the PDCCH and/or PDSCH transmitted by using the downlink beam in the downlink secondary beam group is received, then determining the uplink secondary beam corresponding to the downlink secondary beam group as the uplink beam for the PUCCH transmission; and if there are a plurality of downlink secondary beam groups, then selecting one downlink secondary beam group in accordance with the priorities of the downlink secondary beam groups or the order of the index of the downlink secondary beam groups.
Sixth embodiment
determining that a terminal determines the uplink beam for the PUCCH transmission according to the downlink beam used by the PDCCH and/or PDSCH;
determining that the terminal performs the PUCCH transmission with the determined uplink beam.
determining that the terminal determines the corresponding uplink Beam Pair Linkage, BPL, according to the downlink BPL corresponding to the received PDCCH and/or PDSCH, determines the uplink beam for the PUCCH transmission or the QCL relationship between the DMRS port of the PUCCH and the port on resources of a first reference signal according to the uplink BPL, and performs the PUCCH transmission with the uplink beam corresponding to the uplink BPL; or determines the QCL relationship between the DMRS port of the PUCCH and the port on resources of a first reference signal according to the uplink BPL, and performs the PUCCH transmission with the QCL relationship; or
determining that the terminal determines the corresponding uplink beam index according to the downlink BPL corresponding to the received PDCCH and/or PDSCH, and determining that the terminal performs the PUCCH transmission with the uplink beam corresponding to the uplink beam index; or
determining that the terminal determines the QCL relationship between the DMRS port of the PUCCH and the port on resources of a first reference signal according to the downlink BPL corresponding to the received PDCCH and/or PDSCH, and determining that the terminal performs the PUCCH transmission with the QCL relationship; or
determining that the terminal determines the uplink beam index for identifying the uplink beam performing the PUCCH transmission according to the downlink beam index of the downlink beam corresponding to the received PDCCH and/or PDSCH, and determining that the terminal performs the PUCCH transmission with the uplink beam corresponding to the uplink beam index; or
determining that the terminal determines the QCL relationship between the DMRS port of the PUCCH and the port on resources of a first reference signal according to the QCL relationship between the DMRS port of the received PDCCH and/or PDSCH and the port on resources of a second reference signal, and determining that the terminal performs the PUCCH transmission with the QCL relationship between the DMRS port of the PUCCH and the port on resources of the first reference signal; or
determining that the terminal determines the corresponding uplink BPL according to the QCL relationship between the DMRS port of the received PDCCH and/or PDSCH and the port on resources of a second reference signal, determines the uplink beam for the PUCCH transmission or the QCL relationship between the DMRS port of the PUCCH and the port on resources of a first reference signal according to the uplink BPL, and performs the PUCCH transmission with the uplink beam corresponding to the uplink BPL; or determines the QCL relationship between the DMRS port of the PUCCH and the port on resources of a first reference signal according to the uplink BPL, and performs the PUCCH transmission with the QCL relationship; or
determining that the terminal determines the corresponding uplink beam index according to the QCL relationship between the DMRS port of the received PDCCH and/or PDSCH and the port on resources of a second reference signal, and determining that the terminal performs the PUCCH transmission with the uplink beam corresponding to the uplink beam index.
the DMRS port of the PDCCH and/or PDSCH, and all ports or a specified port on resources of a configured second reference signal are of QCL; or
the QCL relationship between the DMRS port of the PUCCH and the port on resources of the first reference signal includes:
the DMRS port of the PUCCH and all ports or a specified port on resources of a configured first reference signal are of QCL.
when a plurality of PDCCHs and/or PDSCHs are received and different downlink beams are used for the plurality of PDCCHs and/or PDSCHs and the ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs are fed back at the same time, determining a plurality of uplink beams corresponding to the plurality of downlink beams, and selecting one from the plurality of uplink beams as the uplink beam for the PUCCH transmission;
determining that the terminal performs the PUCCH transmission with the determined uplink beam in accordance with the process of:
transmitting the ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs on the same PUCCH with the determined uplink beam.
when a plurality of PDCCHs and/or PDSCHs are received, different beams are used for the plurality of PDCCHs and/or PDSCHs and the ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs are fed back at the same time, selecting one from the plurality of downlink beams, and determining the uplink beam for the PUCCH transmission according to the selected downlink beam;
determining that the terminal performs the PUCCH transmission with the determined uplink beam in accordance with the process of:
transmitting the ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs on the same PUCCH with the determined uplink beam.
first way: determining a first uplink beam according to the downlink beam-x used for a received first PDCCH and/or PDSCH, and determining that the first uplink beam is used to transmit the PUCCH carrying the ACK/NACK related to the first PDCCH and/or PDSCH, where the downlink beam-x and the first uplink beam are in a same group and have a correspondence, and/or, determining a second uplink beam according to the downlink beam-y used by a received second PDCCH and/or PDSCH, and using the second uplink beam to transmit the PUCCH carrying the ACK/NACK related to the second PDCCH and/or PDSCH, where the downlink beam-y and the second uplink beam are in a same group and have a correspondence; where the ACK/NACKs related to the PDCCHs and/or PDSCHs transmitted by different downlink beams in a same beam group are transmitted at different times;
second way: when a plurality of PDCCHs and/or PDSCHs transmitted by using different downlink beams in a same group are received and the ACK/NACKs related to the PDCCHs and/or PDSCHs are fed back at the same time, determining a plurality of uplink beams corresponding to the plurality of downlink beams in the group, and selecting one from the plurality of uplink beams as the uplink beam for the PUCCH transmission, where the PUCCH carries the ACK/NACKs related to the PDCCHs and/or PDSCHs;
third way: when a plurality of PDCCHs and/or PDSCHs transmitted by using different downlink beams in a same group are received and the ACK/NACKs related to the PDCCHs and/or PDSCHs are fed back at the same time, selecting one from the plurality of downlink beams, and determining the uplink beam for the PUCCH transmission according to the selected downlink beam, where the PUCCH carries the ACK/NACKs related to the PDCCHs and/or PDSCHs.
selecting one from the plurality of uplink beams as the uplink beam for the PUCCH transmission according to the pre-configured or pre-agreed priorities of uplink beams or cells; or
when the plurality of uplink beams contain a pre-configured or pre-agreed uplink primary beam, determining the uplink primary beam as the uplink beam for the PUCCH transmission; and when the at least one uplink beam does not contain the uplink primary beam, determining a secondary beam with a certain index in the at least one uplink beam as the uplink beam for the PUCCH transmission; or
when there is the uplink beam corresponding to the pre-configured or pre-agreed primary cell in the plurality of uplink beams, taking the uplink beam corresponding to the primary cell as the uplink beam for the PUCCH transmission; and when there is no uplink beam corresponding to the primary cell in the at least one uplink beam, taking the uplink beam corresponding to the secondary cell as the uplink beam for the PUCCH transmission.
selecting one downlink beam according to the pre-configured or pre-agreed downlink beam priorities, beam group priorities or cell priorities, and determining the uplink beam for the PUCCH transmission according to the selected downlink beam; or
when the PDCCH and/or PDSCH transmitted by using the downlink primary beam is received, determining the uplink beam for the PUCCH transmission according to the downlink primary beam, and/or, when the PDCCH and/or PDSCH transmission is received on the primary cell, determining the uplink beam for the PUCCH transmission according to the downlink beam corresponding to the primary cell; and when no PDCCH and/or PDSCH transmitted by using the downlink primary beam is received or when no PDCCH and/or PDSCH transmission is received on the primary cell, determining the uplink beam for the PUCCH transmission according to the downlink secondary beam with the certain index used by the received PDCCH and/or PDSCH transmission, and/or, determining the uplink beam for the PUCCH transmission according to the downlink beam corresponding to the secondary cell receiving the PDCCH and/or PDSCH transmission; if there are a plurality of secondary cells, determining the uplink beam for the PUCCH transmission according to the downlink beam corresponding to the secondary cell with the certain number receiving the PDCCH and/or PDSCH transmission; where the downlink primary beam and the primary cell are pre-configured or pre-agreed; or
when the PDCCH and/or PDSCH transmitted by using the downlink beam in the downlink primary beam group is received, determining the uplink primary beam corresponding to the primary beam group as the uplink beam for the PUCCH transmission, where the primary beam group and the uplink primary beam corresponding to the primary beam group are pre-configured or pre-defined; and when no PDCCH and/or PDSCH transmitted by using any downlink beam in the downlink primary beam group is received, if the PDCCH and/or PDSCH transmitted by using the downlink beam in the downlink secondary beam group is received, then determining the uplink secondary beam corresponding to the downlink secondary beam group as the uplink beam for the PUCCH transmission; and if there are a plurality of downlink secondary beam groups, then selecting one downlink secondary beam group in accordance with the priorities of the downlink secondary beam groups or the order of the index of the downlink secondary beam groups.
Seventh embodiment
determining an uplink beam for PUCCH transmission according to a downlink beam used by a Physical Downlink Control Channel, PDCCH, and/or Physical Downlink Shared Channel, PDSCH;
performing the PUCCH transmission with the determined uplink beam.
determining a corresponding uplink Beam Pair Linkage, BPL, according to a downlink BPL corresponding to a received PDCCH and/or PDSCH, determining the uplink beam for the PUCCH transmission or a Quasi-Co-Location, QCL, relationship between a Demodulation Reference Signal, DMRS, port of the PUCCH and a port on resources of a first reference signal according to the uplink BPL, and performing the PUCCH transmission with the uplink beam corresponding to the uplink BPL; or determining a QCL relationship between a DMRS port of the PUCCH and a port on resources of a first reference signal according to the uplink BPL, and performing the PUCCH transmission with the QCL relationship; or
determining a corresponding uplink beam index according to a downlink BPL corresponding to the received PDCCH and/or PDSCH, and performing the PUCCH transmission with the uplink beam corresponding to the uplink beam index; or
determining a QCL relationship between a DMRS port of the PUCCH and a port on resources of a first reference signal according to a downlink BPL corresponding to the received PDCCH and/or PDSCH, and performing the PUCCH transmission with the QCL relationship; or
determining an uplink beam index for identifying the uplink beam performing the PUCCH transmission according to a downlink beam index of the downlink beam corresponding to the received PDCCH and/or PDSCH, and performing the PUCCH transmission with the uplink beam corresponding to the uplink beam index; or
determining a QCL relationship between a DMRS port of the PUCCH and a port on resources of a first reference signal according to a QCL relationship between a DMRS port of the received PDCCH and/or PDSCH and a port on resources of a second reference signal, and performing the PUCCH transmission with the QCL relationship between the DMRS port of the PUCCH and the port on resources of the first reference signal; or
determining a corresponding uplink BPL according to a QCL relationship between a DMRS port of the received PDCCH and/or PDSCH and a port on resources of a second reference signal, determining the uplink beam for the PUCCH transmission or a QCL relationship between a DMRS port of the PUCCH and a port on resources of a first reference signal according to the uplink BPL, and performing the PUCCH transmission with the uplink beam corresponding to the uplink BPL; or determining a QCL relationship between a DMRS port of the PUCCH and a port on resources of a first reference signal according to the uplink BPL, and performing the PUCCH transmission with the QCL relationship; or
determining a corresponding uplink beam index according to a QCL relationship between a DMRS port of the received PDCCH and/or PDSCH and a port on resources of a second reference signal, and performing the PUCCH transmission with the uplink beam corresponding to the uplink beam index.
the DMRS port of the PDCCH and/or PDSCH, and all ports or a specified port on resources of a configured second reference signal are of QCL; or
the QCL relationship between the DMRS port of the PUCCH and the port on resources of the first reference signal includes:
the DMRS port of the PUCCH and all ports or a specified port on resources of a configured first reference signal are of QCL.
when a plurality of PDCCHs and/or PDSCHs are received, different downlink beams are used for the plurality of PDCCHs and/or PDSCHs and ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs are fed back at a same time, determining a plurality of uplink beams corresponding to the plurality of downlink beams, and selecting one from the plurality of uplink beams as the uplink beam for the PUCCH transmission;
performing the PUCCH transmission with the determined uplink beam, comprises:
transmitting the ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs on a same PUCCH with the determined uplink beam.
when a plurality of PDCCHs and/or PDSCHs are received, different beams are used for the plurality of PDCCHs and/or PDSCHs and ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs are fed back at a same time, selecting one from the plurality of downlink beams, and determining the uplink beam for the PUCCH transmission according to the selected downlink beam;
performing the PUCCH transmission with the determined uplink beam, comprises:
transmitting the ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs on a same PUCCH with the determined uplink beam.
first way: determining a first uplink beam according to a downlink beam-x used by a received first PDCCH and/or PDSCH, and determining that the first uplink beam is used to transmit a PUCCH carrying ACK/NACK related to the first PDCCH and/or PDSCH, wherein the downlink beam-x and the first uplink beam are in a same group and have a correspondence, and/or, determining a second uplink beam according to a downlink beam-y used by a received second PDCCH and/or PDSCH, and using the second uplink beam to transmit a PUCCH carrying ACK/NACK related to the second PDCCH and/or PDSCH, wherein the downlink beam-y and the second uplink beam are in a same group and have a correspondence; wherein ACK/NACKs related to PDCCHs and/or PDSCHs transmitted by using different downlink beams in a same beam group are transmitted at different times;
second way: when a plurality of PDCCHs and/or PDSCHs transmitted by using different downlink beams in a same group are received and ACK/NACKs related to the PDCCHs and/or PDSCHs are fed back at the same time, determining a plurality of uplink beams corresponding to the plurality of downlink beams in the group, and selecting one from the plurality of uplink beams as the uplink beam for the PUCCH transmission, wherein the PUCCH carries the ACK/NACKs related to the PDCCHs and/or PDSCHs;
third way: when a plurality of PDCCHs and/or PDSCHs transmitted by using different downlink beams in a same group are received and ACK/NACKs related to the PDCCHs and/or PDSCHs are fed back at the same time, selecting one from the plurality of downlink beams, and determining the uplink beam for the PUCCH transmission according to the selected downlink beam, wherein the PUCCH carries the ACK/NACKs related to the PDCCHs and/or PDSCHs.
selecting one from the plurality of uplink beams as the uplink beam for the PUCCH transmission according to pre-configured or pre-agreed priorities of uplink beams or cells; or
when the plurality of uplink beams contain a pre-configured or pre-agreed uplink primary beam, determining the uplink primary beam as the uplink beam for the PUCCH transmission; and when at least one uplink beam does not contain the uplink primary beam, determining a secondary beam with a certain index in the at least one uplink beam as the uplink beam for the PUCCH transmission; or
when there is an uplink beam corresponding to a pre-configured or pre-agreed primary cell in the plurality of uplink beams, taking the uplink beam corresponding to the primary cell as the uplink beam for the PUCCH transmission; and when there is no uplink beam corresponding to the primary cell in the at least one uplink beam, taking an uplink beam corresponding to a secondary cell as the uplink beam for the PUCCH transmission.
selecting one downlink beam according to pre-configured or pre-agreed uplink beam priorities, beam group priorities or cell priorities, and determining the uplink beam for the PUCCH transmission according to the selected downlink beam; or
when a PDCCH and/or PDSCH transmitted by using a downlink primary beam is received, determining the uplink beam for the PUCCH transmission according to the downlink primary beam, and/or, when the PDCCH and/or PDSCH transmission is received on a primary cell, determining the uplink beam for the PUCCH transmission according to a downlink beam corresponding to the primary cell; and when no PDCCH and/or PDSCH transmitted by using the downlink primary beam is received or when no PDCCH and/or PDSCH transmission is received on the primary cell, determining the uplink beam for the PUCCH transmission according to a downlink secondary beam with a certain index used by the received PDCCH and/or PDSCH transmission, and/or, determining the uplink beam for the PUCCH transmission according to a downlink beam corresponding to a secondary cell receiving the PDCCH and/or PDSCH transmission; wherein the downlink primary beam and the primary cell are pre-configured or pre-agreed; or
when a PDCCH and/or PDSCH transmitted by using a downlink beam in a downlink primary beam group is received, determining an uplink primary beam corresponding to the primary beam group as the uplink beam for the PUCCH transmission, wherein the primary beam group and the uplink primary beam corresponding to the primary beam group are pre-configured or pre-defined; and when no PDCCH and/or PDSCH transmitted by using any downlink beam in the downlink primary beam group is received, if a PDCCH and/or PDSCH transmitted by using a downlink beam in a downlink secondary beam group is received, then determining an uplink secondary beam corresponding to the downlink secondary beam group as the uplink beam for the PUCCH transmission; and if there are a plurality of downlink secondary beam groups, then selecting one downlink secondary beam group in accordance with priorities of the downlink secondary beam groups or an order of the index of the downlink secondary beam groups.
determining that a terminal determines an uplink beam for PUCCH transmission according to a downlink beam used by a PDCCH and/or PDSCH;
determining that the terminal performs the PUCCH transmission with the determined uplink beam.
determining that the terminal determines a corresponding uplink Beam Pair Linkage, BPL, according to a downlink BPL corresponding to the received PDCCH and/or PDSCH, determines the uplink beam for the PUCCH transmission or a QCL relationship between a DMRS port of the PUCCH and a port on resources of a first reference signal according to the uplink BPL, and performs the PUCCH transmission with the uplink beam corresponding to the uplink BPL; or determines a QCL relationship between a DMRS port of the PUCCH and a port on resources of a first reference signal according to the uplink BPL, and performs the PUCCH transmission with the QCL relationship; or
determining that the terminal determines a corresponding uplink beam index according to a downlink BPL corresponding to the received PDCCH and/or PDSCH, and determining that the terminal performs the PUCCH transmission with the uplink beam corresponding to the uplink beam index; or
determining that the terminal determines a QCL relationship between a DMRS port of the PUCCH and a port on resources of a first reference signal according to a downlink BPL corresponding to the received PDCCH and/or PDSCH, and determining that the terminal performs the PUCCH transmission with the QCL relationship; or
determining that the terminal determines an uplink beam index for identifying the uplink beam performing the PUCCH transmission according to a downlink beam index of the downlink beam corresponding to the received PDCCH and/or PDSCH, and determining that the terminal performs the PUCCH transmission with the uplink beam corresponding to the uplink beam index; or
determining that the terminal determines a QCL relationship between a DMRS port of the PUCCH and a port on resources of a first reference signal according to a QCL relationship between a DMRS port of the received PDCCH and/or PDSCH and a port on resources of a second reference signal, and determining that the terminal performs the PUCCH transmission with the QCL relationship between the DMRS port of the PUCCH and the port on resources of the first reference signal; or
determining that the terminal determines a corresponding uplink BPL according to a QCL relationship between a DMRS port of the received PDCCH and/or PDSCH and a port on resources of a second reference signal, determines the uplink beam for the PUCCH transmission or a QCL relationship between a DMRS port of the PUCCH and a port on resources of a first reference signal according to the uplink BPL, and performs the PUCCH transmission with the uplink beam corresponding to the uplink BPL; or determines a QCL relationship between a DMRS port of the PUCCH and a port on resources of a first reference signal according to the uplink BPL, and performs the PUCCH transmission with the QCL relationship; or
determining that the terminal determines a corresponding uplink beam index according to a QCL relationship between a DMRS port of the received PDCCH and/or PDSCH and a port on resources of a second reference signal, and determining that the terminal performs the PUCCH transmission with the uplink beam corresponding to the uplink beam index.
the DMRS port of the PDCCH and/or PDSCH, and all ports or a specified port on resources of a configured second reference signal are of QCL; or
the QCL relationship between the DMRS port of the PUCCH and the port on resources of the first reference signal includes:
the DMRS port of the PUCCH and all ports or a specified port on resources of a configured first reference signal are of QCL.
when a plurality of PDCCHs and/or PDSCHs are received, different downlink beams are used for the plurality of PDCCHs and/or PDSCHs and ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs are fed back at a same time, determining a plurality of uplink beams corresponding to the plurality of downlink beams, and selecting one from the plurality of uplink beams as the uplink beam for the PUCCH transmission;
determining that the terminal performs the PUCCH transmission with the determined uplink beam in accordance with a process of:
transmitting the ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs on a same PUCCH with the determined uplink beam.
when a plurality of PDCCHs and/or PDSCHs are received, different beams are used for the plurality of PDCCHs and/or PDSCHs and ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs are fed back at a same time, selecting one from the plurality of downlink beams, and determining the uplink beam for the PUCCH transmission according to the selected downlink beam;
determining that the terminal performs the PUCCH transmission with the determined uplink beam in accordance with a process of:
transmitting the ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs on a same PUCCH with the determined uplink beam.
first way: determining a first uplink beam according to a downlink beam-x used by a received first PDCCH and/or PDSCH, and determining that the first uplink beam is used to transmit a PUCCH carrying ACK/NACK related to the first PDCCH and/or PDSCH, wherein the downlink beam-x and the first uplink beam are in a same group and have a correspondence, and/or, determining a second uplink beam according to a downlink beam-y used by a received second PDCCH and/or PDSCH, and using the second uplink beam to transmit a PUCCH carrying ACK/NACK related to the second PDCCH and/or PDSCH, wherein the downlink beam-y and the second uplink beam are in a same group and have a correspondence; wherein ACK/NACKs related to PDCCHs and/or PDSCHs transmitted by using different downlink beams in a same beam group are transmitted at different times;
second way: when a plurality of PDCCHs and/or PDSCHs transmitted by using different downlink beams in a same group are received and ACK/NACKs related to the PDCCHs and/or PDSCHs are fed back at the same time, determining a plurality of uplink beams corresponding to the plurality of downlink beams in the group, and selecting one from the plurality of uplink beams as the uplink beam for the PUCCH transmission, wherein the PUCCH carries the ACK/NACKs related to the PDCCHs and/or PDSCHs;
third way: when a plurality of PDCCHs and/or PDSCHs transmitted by using different downlink beams in a same group are received and ACK/NACKs related to the PDCCHs and/or PDSCHs are fed back at the same time, selecting one from the plurality of downlink beams, and determining the uplink beam for the PUCCH transmission according to the selected downlink beam, wherein the PUCCH carries the ACK/NACKs related to the PDCCHs and/or PDSCHs.
selecting one from the plurality of uplink beams as the uplink beam for the PUCCH transmission according to pre-configured or pre-agreed priorities of uplink beams or cells; or
when the plurality of uplink beams contain a pre-configured or pre-agreed uplink primary beam, determining the uplink primary beam as the uplink beam for the PUCCH transmission; and when at least one uplink beam does not contain the uplink primary beam, determining a secondary beam with a certain index in the at least one uplink beam as the uplink beam for the PUCCH transmission; or
when there is an uplink beam corresponding to a pre-configured or pre-agreed primary cell in the plurality of uplink beams, taking the uplink beam corresponding to the primary cell as the uplink beam for the PUCCH transmission; and when there is no uplink beam corresponding to the primary cell in the at least one uplink beam, taking an uplink beam corresponding to a secondary cell as the uplink beam for the PUCCH transmission.
selecting one downlink beam according to pre-configured or pre-agreed uplink beam priorities, beam group priorities or cell priorities, and determining the uplink beam for the PUCCH transmission according to the selected downlink beam; or
when a PDCCH and/or PDSCH transmitted by using a downlink primary beam is received, determining the uplink beam for the PUCCH transmission according to the downlink primary beam, and/or, when the PDCCH and/or PDSCH transmission is received on a primary cell, determining the uplink beam for the PUCCH transmission according to a downlink beam corresponding to the primary cell; and when no PDCCH and/or PDSCH transmitted by using the downlink primary beam is received or when no PDCCH and/or PDSCH transmission is received on the primary cell, determining the uplink beam for the PUCCH transmission according to a downlink secondary beam with a certain index used by the received PDCCH and/or PDSCH transmission, and/or, determining the uplink beam for the PUCCH transmission according to a downlink beam corresponding to a secondary cell receiving the PDCCH and/or PDSCH transmission; wherein the downlink primary beam and the primary cell are pre-configured or pre-agreed; or
when a PDCCH and/or PDSCH transmitted by using a downlink beam in a downlink primary beam group is received, determining an uplink primary beam corresponding to the primary beam group as the uplink beam for the PUCCH transmission, wherein the primary beam group and the uplink primary beam corresponding to the primary beam group are pre-configured or pre-defined; and when no PDCCH and/or PDSCH transmitted by using any downlink beam in the downlink primary beam group is received, if a PDCCH and/or PDSCH transmitted by using a downlink beam in a downlink secondary beam group is received, then determining an uplink secondary beam corresponding to the downlink secondary beam group as the uplink beam for the PUCCH transmission; and if there are a plurality of downlink secondary beam groups, then selecting one downlink secondary beam group in accordance with priorities of the downlink secondary beam groups or an order of the index of the downlink secondary beam groups.
determining an uplink beam for PUCCH transmission according to a downlink beam used by a PDCCH and/or PDSCH;
controlling the transceiver to perform the PUCCH transmission with the determined uplink beam.
the DMRS port of the PDCCH and/or PDSCH, and all ports or a specified port on resources of a configured second reference signal are of QCL; or
the QCL relationship between the DMRS port of the PUCCH and the port on resources of the first reference signal includes:
the DMRS port of the PUCCH and all ports or a specified port on resources of a configured first reference signal are of QCL.
when a plurality of PDCCHs and/or PDSCHs are received and different downlink beams are used for the plurality of PDCCHs and/or PDSCHs and ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs are fed back at a same time, determine a plurality of uplink beams corresponding to the plurality of downlink beams, and select one from the plurality of uplink beams as the uplink beam for the PUCCH transmission;
the transmission unit is configured to:
transmit the ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs on a same PUCCH with the determined uplink beam.
when a plurality of PDCCHs and/or PDSCHs are received and different beams are used for the plurality of PDCCHs and/or PDSCHs and ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs are fed back at a same time, select one from the plurality of downlink beams, and determine the uplink beam for the PUCCH transmission according to the selected downlink beam;
the transmission unit is configured to:
transmit the ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs on a same PUCCH with the determined uplink beam.
first way: determine a first uplink beam according to a downlink beam-x used by a received first PDCCH and/or PDSCH, and determine that the first uplink beam is used to transmit a PUCCH carrying ACK/NACK related to the first PDCCH and/or PDSCH, wherein the downlink beam-x and the first uplink beam are in a same group and have a correspondence, and/or, determine a second uplink beam according to a downlink beam-y used by a received second PDCCH and/or PDSCH, and use the second uplink beam to transmit a PUCCH carrying ACK/NACK related to the second PDCCH and/or PDSCH, wherein the downlink beam-y and the second uplink beam are in a same group and have a correspondence; wherein ACK/NACKs related to PDCCHs and/or PDSCHs transmitted by using different downlink beams in a same beam group are transmitted at different times;
second way: when a plurality of PDCCHs and/or PDSCHs transmitted by using different downlink beams in a same group are received and ACK/NACKs related to the PDCCHs and/or PDSCHs are fed back at a same time, determine a plurality of uplink beams corresponding to the plurality of downlink beams in the group, and select one from the plurality of uplink beams as the uplink beam for the PUCCH transmission, wherein the PUCCH carries the ACK/NACKs related to the PDCCHs and/or PDSCHs;
third way: when a plurality of PDCCHs and/or PDSCHs transmitted by using different downlink beams in a same group are received and ACK/NACKs related to the PDCCHs and/or PDSCHs are fed back at the same time, select one from the plurality of downlink beams, and determine the uplink beam for the PUCCH transmission according to the selected downlink beam, wherein the PUCCH carries the ACK/NACKs related to the PDCCHs and/or PDSCHs.
select one from the plurality of uplink beams as the uplink beam for the PUCCH transmission according to pre-configured or pre-agreed priorities of uplink beams or cells; or
when the plurality of uplink beams contain a pre-configured or pre-agreed uplink primary beam, determine the uplink primary beam as the uplink beam for the PUCCH transmission; and when at least one uplink beam does not contain the uplink primary beam, determine a secondary beam with a certain index in the at least one uplink beam as the uplink beam for the PUCCH transmission; or
when there is an uplink beam corresponding to a pre-configured or pre-agreed primary cell in the plurality of uplink beams, take the uplink beam corresponding to the primary cell as the uplink beam for the PUCCH transmission; and when there is no uplink beam corresponding to the primary cell in the at least one uplink beam, take an uplink beam corresponding to a secondary cell as the uplink beam for the PUCCH transmission.
select one downlink beam according to pre-configured or pre-agreed uplink beam priorities, beam group priorities or cell priorities, and determine the uplink beam for the PUCCH transmission according to the selected downlink beam; or
when a PDCCH and/or PDSCH transmitted by using a downlink primary beam is received, determine the uplink beam for the PUCCH transmission according to the downlink primary beam, and/or, when the PDCCH and/or PDSCH transmission is received on a primary cell, determine the uplink beam for the PUCCH transmission according to a downlink beam corresponding to the primary cell; and when no PDCCH and/or PDSCH transmitted by using the downlink primary beam is received or when no PDCCH and/or PDSCH transmission is received on the primary cell, determine the uplink beam for the PUCCH transmission according to a downlink secondary beam with a certain index used by the received PDCCH and/or PDSCH transmission, and/or, determine the uplink beam for the PUCCH transmission according to a downlink beam corresponding to a secondary cell receiving the PDCCH and/or PDSCH transmission; wherein the downlink primary beam and the primary cell are pre-configured or pre-agreed; or
when a PDCCH and/or PDSCH transmitted by using a downlink beam in a downlink primary beam group is received, determine an uplink primary beam corresponding to the primary beam group as the uplink beam for the PUCCH transmission, wherein the primary beam group and the uplink primary beam corresponding to the primary beam group are pre-configured or pre-defined; and when no PDCCH and/or PDSCH transmitted by using any downlink beam in the downlink primary beam group is received, if a PDCCH and/or PDSCH transmitted by using a downlink beam in a downlink secondary beam group is received, then determine an uplink secondary beam corresponding to the downlink secondary beam group as the uplink beam for the PUCCH transmission; and if there are a plurality of downlink secondary beam groups, then select one downlink secondary beam group in accordance with priorities of the downlink secondary beam groups or an order of the index of the downlink secondary beam groups.
determining that a terminal determines an uplink beam for PUCCH transmission according to a downlink beam used by a PDCCH and/or PDSCH;
determining that the terminal performs the PUCCH transmission with the determined uplink beam.
determine that the terminal determines a corresponding uplink Beam Pair Linkage, BPL, according to a downlink BPL corresponding to the received PDCCH and/or PDSCH, determines the uplink beam for the PUCCH transmission or a QCL relationship between a DMRS port of the PUCCH and a port on resources of a first reference signal according to the uplink BPL, and performs the PUCCH transmission with the uplink beam corresponding to the uplink BPL; or determines a QCL relationship between a DMRS port of the PUCCH and a port on resources of a first reference signal according to the uplink BPL, and performs the PUCCH transmission with the QCL relationship; or
determine that the terminal determines a corresponding uplink beam index according to a downlink BPL corresponding to the received PDCCH and/or PDSCH, and determine that the terminal performs the PUCCH transmission with the uplink beam corresponding to the uplink beam index; or
determine that the terminal determines a QCL relationship between a DMRS port of the PUCCH and a port on resources of a first reference signal according to a downlink BPL corresponding to the received PDCCH and/or PDSCH, and determine that the terminal performs the PUCCH transmission with the QCL relationship; or
determine that the terminal determines an uplink beam index for identifying the uplink beam performing the PUCCH transmission according to a downlink beam index of the downlink beam corresponding to the received PDCCH and/or PDSCH, and determine that the terminal performs the PUCCH transmission with the uplink beam corresponding to the uplink beam index; or
determine that the terminal determines a QCL relationship between a DMRS port of the PUCCH and a port on resources of a first reference signal according to a QCL relationship between a DMRS port of the received PDCCH and/or PDSCH and a port on resources of a second reference signal, and determine that the terminal performs the PUCCH transmission with the QCL relationship between the DMRS port of the PUCCH and the port on resources of the first reference signal; or
determine that the terminal determines a corresponding uplink BPL according to a QCL relationship between a DMRS port of the received PDCCH and/or PDSCH and a port on resources of a second reference signal, determines the uplink beam for the PUCCH transmission or a QCL relationship between a DMRS port of the PUCCH and a port on resources of a first reference signal according to the uplink BPL, and performs the PUCCH transmission with the uplink beam corresponding to the uplink BPL; or determines a QCL relationship between a DMRS port of the PUCCH and a port on resources of a first reference signal according to the uplink BPL, and performs the PUCCH transmission with the QCL relationship; or
determine that the terminal determines a corresponding uplink beam index according to a QCL relationship between a DMRS port of the received PDCCH and/or PDSCH and a port on resources of a second reference signal, and determine that the terminal performs the PUCCH transmission with the uplink beam corresponding to the uplink beam index.
the DMRS port of the PDCCH and/or PDSCH, and all ports or a specified port on resources of a configured second reference signal are of QCL; or
the QCL relationship between the DMRS port of the PUCCH and the port on resources of the first reference signal includes:
the DMRS port of the PUCCH and all ports or a specified port on resources of a configured first reference signal are of QCL.
when a plurality of PDCCHs and/or PDSCHs are received and different downlink beams are used for the plurality of PDCCHs and/or PDSCHs and ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs are fed back at a same time, determine a plurality of uplink beams corresponding to the plurality of downlink beams, and select one from the plurality of uplink beams as the uplink beam for the PUCCH transmission;
determine that the terminal performs the PUCCH transmission with the determined uplink beam in accordance with a process of:
transmitting the ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs on a same PUCCH with the determined uplink beam.
when a plurality of PDCCHs and/or PDSCHs are received and different beams are used for the plurality of PDCCHs and/or PDSCHs and ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs are fed back at a same time, select one from the plurality of downlink beams, and determine the uplink beam for the PUCCH transmission according to the selected downlink beam;
determine that the terminal performs the PUCCH transmission with the determined uplink beam in accordance with a process of:
transmitting the ACK/NACKs related to the plurality of PDCCHs and/or PDSCHs on the same PUCCH with the determined uplink beam.
first way: determine a first uplink beam according to a downlink beam-x used by a received first PDCCH and/or PDSCH, and determine that the first uplink beam is used to transmit a PUCCH carrying ACK/NACK related to the first PDCCH and/or PDSCH, wherein the downlink beam-x and the first uplink beam are in a same group and have a correspondence, and/or, determine a second uplink beam according to a downlink beam-y used by a received second PDCCH and/or PDSCH, and use the second uplink beam to transmit a PUCCH carrying ACK/NACK related to the second PDCCH and/or PDSCH, wherein the downlink beam-y and the second uplink beam are in a same group and have a correspondence; wherein ACK/NACKs related to PDCCHs and/or PDSCHs transmitted by using different downlink beams in a same beam group are transmitted at different times;
second way: when a plurality of PDCCHs and/or PDSCHs transmitted by using different downlink beams in a same group are received and ACK/NACKs related to the PDCCHs and/or PDSCHs are fed back at a same time, determine a plurality of uplink beams corresponding to the plurality of downlink beams in the group, and select one from the plurality of uplink beams as the uplink beam for the PUCCH transmission, wherein the PUCCH carries the ACK/NACKs related to the PDCCHs and/or PDSCHs;
third way: when a plurality of PDCCHs and/or PDSCHs transmitted by using different downlink beams in a same group are received and ACK/NACKs related to the PDCCHs and/or PDSCHs are fed back at a same time, select one from the plurality of downlink beams, and determine the uplink beam for the PUCCH transmission according to the selected downlink beam, wherein the PUCCH carries the ACK/NACKs related to the PDCCHs and/or PDSCHs.
select one from the plurality of uplink beams as the uplink beam for the PUCCH transmission according to pre-configured or pre-agreed priorities of uplink beams or cells; or
when the plurality of uplink beams contain a pre-configured or pre-agreed uplink primary beam, determine the uplink primary beam as the uplink beam for the PUCCH transmission; and when the at least one uplink beam does not contain the uplink primary beam, determine a secondary beam with a certain index in the at least one uplink beam as the uplink beam for the PUCCH transmission; or
when there is an uplink beam corresponding to a pre-configured or pre-agreed primary cell in the plurality of uplink beams, take the uplink beam corresponding to the primary cell as the uplink beam for the PUCCH transmission; and when there is no uplink beam corresponding to the primary cell in the at least one uplink beam, take an uplink beam corresponding to a secondary cell as the uplink beam for the PUCCH transmission.
select one downlink beam according to pre-configured or pre-agreed uplink beam priorities, beam group priorities or cell priorities, and determine the uplink beam for the PUCCH transmission according to the selected downlink beam; or
when a PDCCH and/or PDSCH transmitted by using a downlink primary beam is received, determine the uplink beam for the PUCCH transmission according to the downlink primary beam, and/or, when the PDCCH and/or PDSCH transmission is received on a primary cell, determine the uplink beam for the PUCCH transmission according to a downlink beam corresponding to the primary cell; and when no PDCCH and/or PDSCH transmitted by using the downlink primary beam is received or when no PDCCH and/or PDSCH transmission is received on the primary cell, determine the uplink beam for the PUCCH transmission according to a downlink secondary beam with a certain index used by the received PDCCH and/or PDSCH transmission, and/or, determine the uplink beam for the PUCCH transmission according to a downlink beam corresponding to a secondary cell receiving the PDCCH and/or PDSCH transmission; wherein the downlink primary beam and the primary cell are pre-configured or pre-agreed; or
when a PDCCH and/or PDSCH transmitted by using a downlink beam in a downlink primary beam group is received, determine an uplink primary beam corresponding to the primary beam group as the uplink beam for the PUCCH transmission, wherein the primary beam group and the uplink primary beam corresponding to the primary beam group are pre-configured or pre-defined; and when no PDCCH and/or PDSCH transmitted by using any downlink beam in the downlink primary beam group is received, if a PDCCH and/or PDSCH transmitted by using a downlink beam in a downlink secondary beam group is received, then determine an uplink secondary beam corresponding to the downlink secondary beam group as the uplink beam for the PUCCH transmission; and if there are a plurality of downlink secondary beam groups, then select one downlink secondary beam group in accordance with priorities of the downlink secondary beam groups or an order of the index of the downlink secondary beam groups.
a determining unit configured to determine an uplink beam for PUCCH transmission according to a downlink beam used by a PDCCH and/or PDSCH;
a transmission unit configured to perform the PUCCH transmission with the determined uplink beam.
REFERENCES CITED IN THE DESCRIPTION
Patent documents cited in the description