(19)
(11)EP 2 031 929 B1

(12)EUROPEAN PATENT SPECIFICATION

(45)Mention of the grant of the patent:
14.10.2015 Bulletin 2015/42

(21)Application number: 08013869.6

(22)Date of filing:  01.08.2008
(51)International Patent Classification (IPC): 
H04W 52/02(2009.01)
H04W 76/04(2009.01)

(54)

Method and apparatus for improving continuous packet connectivity in a wireless communications system

Verfahren und Gerät zur Verbesserung der kontinuierlichen Paketkonnektivität in einem drahtlosen Kommunikationssystem

Appareil et procédé d'amélioration de la connectivité par paquet continue dans un système de communications sans fil


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

(30)Priority: 02.08.2007 US 953472 P

(43)Date of publication of application:
04.03.2009 Bulletin 2009/10

(60)Divisional application:
10003218.4 / 2200377

(73)Proprietor: Innovative Sonic Limited
Ebene 72201 (MU)

(72)Inventor:
  • Li-Chih, Tseng
    Peitou Taipei City (TW)

(74)Representative: Hoefer & Partner Patentanwälte mbB 
Pilgersheimer Straße 20
81543 München
81543 München (DE)


(56)References cited: : 
  
  • "Universal Mobile Telecommunications System (UMTS); Radio Resource Control (RRC); Protocol specification (3GPP TS 25.331 version 7.5.0 Release 7); ETSI TS 125 331" ETSI STANDARDS, LIS, SOPHIA ANTIPOLIS CEDEX, FRANCE, vol. 3-R2, no. V7.5.0, 1 June 2007 (2007-06-01), XP014040019 ISSN: 0000-0001
  • QUALCOMM EUROPE: "Correction to relation between DTX-DRX timing and DTX-DRX configuration" 3GPP TSG-RAN WG2 #62, [Online] 5 May 2008 (2008-05-05), - 9 May 2008 (2008-05-09) XP002563529 Kansas City Retrieved from the Internet: URL:http://www.3gpp.org/ftp/tsg_ran/WG2_RL 2/TSGR2_62/Docs/R2-082398.zip> [retrieved on 2010-01-14]
  
Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).


Description


[0001] The present invention relates to a method and related apparatus for improving Continuous Packet Connectivity in a wireless communications system according to the pre-characterizing clauses of claims 1 and 5. Such a method and related apparatus are described in "Universal Mobile Telecommunications System (UMTS); Radio Resource Control (RRC); Protocol specification (3GPP TS 25.331 version 7.5.0 Release 7); ETSI TS 125 331" ETSI STANDARDS, LIS, SOPHIA ANTIPOLIS CEDEX, FRANCE; vol. 3-R2, no. V7.5.0, 1 June 2007 (2007-06-01), XP014040019 ISSN:0000-0001.

[0002] The third generation (3G) mobile telecommunications system, the Universal Mobile Telecommunications System (UMTS), has adopted a Wideband Code Division Multiple Access (WCDMA) wireless air interface access method for a cellular network. WCDMA provides high frequency spectrum utilization, universal coverage, and high quality, high-speed multimedia data transmission. The WCDMA method also meets all kinds of QoS (Quality of Service) requirements simultaneously, providing diverse, flexible, two-way transmission services and better communication quality to reduce transmission interruption rates. Through the 3G mobile telecommunications system, a user can utilize a wireless communications device, such as a mobile phone, to realize real-time video communications, conference calls, real-time games, online music broadcasts, and email sending/receiving. However, these functions rely on fast, instantaneous transmission. Thus, targeting the third generation mobile telecommunication technology, the prior art provides High Speed Package Access (HSPA) technology, which includes High Speed Downlink Package Access (HSDPA) and High Speed Uplink Package Access (HSUPA), to increase bandwidth utility rate and package data processing efficiency to improve uplink/downlink transmission rate.

[0003] According to the related protocol specifications, one of protocol stacks of the UMTS, access stratum (AS), can be segmented into sub-layers for different functions. The operations of the sub-layers in the AS are well known in the art, and detailed description is not given here. The Radio Resource Control (RRC) layer, a Layer 3 protocol, is the core of communications protocols related to AS and is located in radio network controllers (RNC) of the UMTS Terrestrial Radio Access Network (UTRAN) and a user equipment (UE). The RRC layer uses RRC messages to perform RRC procedures. RRC messages are formed from many information elements (IEs) used for embedding necessary information for setting, changing, or releasing protocol entities of Layer 2 and Layer 1, thereby establishing, adjusting, or canceling information exchange channels to perform data packet transportation.

[0004] For improving HSDPA and HSUPA, the 3rd Generation Partnership Project (3GPP) provides a Continuous Packet Connectivity (CPC) protocol specification, which includes features that, for UEs in CELL_DCH state, aim to significantly increase the number of packet data users for a cell, reduce the uplink noise rise and improve the achievable download capacity for VoIP.

[0005] According to the CPC protocol specification, a discontinuous transmission and discontinuous reception (DTX-DRX) operation is used to reduce power consumption when transmission between a UE and the UTRAN is decreasing. The DTX-DRX operation includes discontinuous uplink transmission (uplink DTX), discontinuous uplink reception (uplink DRX) and discontinuous downlink reception (downlink DRX). Uplink DTX is a mechanism where control signals are transmitted on the uplink control channels according to defined discontinuous patterns during the inactive state of corresponding uplink data channels, such as Enhanced Dedicated Transport Channel (E-DCH) or High Speed Physical Control Channel (HS-DPCCH), in order to maintain signal synchronization and power control loop with less control signaling. Uplink DRX is utilized for controlling the UE to transmit E-DCH in specific time interval and has to be configured with uplink DTX. Downlink DRX is configured by a Radio Network Controller (RNC) and allows the UE to restrict the downlink reception times in order to reduce power consumption. When the downlink DRX is enabled, the UE is not required to receive physical downlink channels except for several specific situations. Please note that the DTX-DRX operation is enabled only when the UE is in CELL_DCH state.

[0006] Associated configurations of the DTX-DRX operation are described as follows. If the UE receives RRC CONNECTION SETUP, ACTIVE SET UPDATE, CELL UPDATE CONFIRM, or any other reconfiguration message, the UE shall determine the value for a DTX_DRX_STATUS variable that indicates a status of the DTX-DRX operation. The DTX_DRX_STATUS variable shall be set to TRUE for starting the DTX-DRX operation only when all the following conditions are met:
  1. 1. the UE is in CELL_DCH state;
  2. 2. both variables HS_DSCH RECEPTION and E_DCH_TRANSMISSION are set to TRUE;
  3. 3. no DCH transport channel is configured;
  4. 4. a variable DTX_DRX_PARAMS is set; and
  5. 5. the UE received an IE "DTX-DRX timing information".


[0007] If any one of the above conditions is not met and the variable DTX_DRX_STATUS is set to TRUE, the UE shall:
  1. 1. set the variable DTX_DRX_STATUS to FALSE;
  2. 2. clear the variable DTX_DRX_PARAMS; and
  3. 3. stop the DTX-DRX operation related activities.


[0008] In summary, the UE controls start or stop of the DTX-DRX operation by setting the variable DTX_DRX_STATUS to TRUE or FALSE. On the other hand, the UE stores the content of the received IE "DTX-DRX timing information" in the variable DTX_DRX_PARAMS. The variable DTX_DRX_PARAMS includes the IE "DTX-DRX timing information" and an IE "DTX-DRX information". The IE "DTX-DRX timing information" is used for indicating timing information of the DTX-DRX operation and comprises other IEs, such as an IE "CHOICE timing", an IE "DTX information", an IE "DRX information", and so on. The UTRAN has to transmit the IE "CHOICE timing" using for selecting a timing of the DTX-DRX operation to the UE to reconfigure the timing of the DTX-DRX operation. The content of the IE "CHOICE timing" comprises "new timing" or "continue".

[0009] Known as associated 3GPP protocols, if the UE confirms that the IE "DTX-DRX timing information" is included in a received reconfiguration message and the IE "CHOICE timing" is set to "new timing", the UE stores the content of the IE "DTX-DRX timing information" in the variable DTX_DRX_PARAMS. At the same time, if the UE confirms that the IE "DTX-DRX information" is included in the received reconfiguration message, the UE also stores the content of the IE "DTX-DRX information" in the variable DTX_DRX_PARAMS.

[0010] In fact, if the UE confirms that the IE "CHOICE timing" is set to "new timing", the UE can use the content of the IE "DTX-DRX timing information" and does not store it in the variable DTX_DRX_PARAMS. The UE only stores the IE "DTX-DRX information" in the variable DTX_DRX_PARAMS.

[0011] From the above, the UE starts the DTX-DRX operation only when all the above 5 conditions are met. In other words, the UE stops the DTX-DRX operation only when any one of the above 5 conditions is repealed. For example, the UE has to leave CELL_DCH state, or sets the variables HS_DSCH RECEPTION and E_DCH_TRANSMISSION to FALSE in order to stop the DTX-DRX operation after the DTX-DRX operation is enabled. In other words, the UE has to disable HSDPA and HSUPA for stopping the DTX-DRX operation. If the UE wants to keep transmission, the UE has to enter CELL_DCH state again. In addition, the variable DTX_DRX_PARAMS is set and the IE "DTX-DRX timing information" is received after the DTX-DRX operation is enabled. Therefore, it is impossible to stop the DTX-DRX operation by repealing the last two of the above 5 conditions.

[0012] In conclusion, it is difficult to stop the DTX-DRX operation by repealing any one of the above 5 conditions when the DTX-DRX operation is enabled. Therefore, transmission efficiency of CPC is decreased.

[0013] This in mind, the present invention aims at providing a method and related apparatus for improving a start procedure of DTX-DRX operation, for improving Continuous Packet Connectivity.

[0014] This is achieved by a method and apparatus of improving Continuous Packet Connectivity in a wireless communications system according to the pre-characterizing clauses of claims 1 and 5. The dependent claims pertain to corresponding further developments and improvements.

[0015] As will be seen more clearly from the detailed description following below, the claimed method of improving CPC for a UE in a wireless communications system is disclosed. The method includes receiving a reconfiguration message, determining the content of a second IE included in a first IE when the first IE is included in the reconfiguration message, wherein the first IE is used for indicating timing information of a DTX-DRX operation and the second IE is used for selecting a timing of the DTX-DRX operation, and using the content of the first IE without storing the content of the first IE when the content of the second IE is a new timing.

[0016] In the following, the invention is further illustrated by way of example, taking reference to the accompanying drawings. Thereof

Fig. 1 is a functional block diagram of a communications device.

Fig. 2 is a diagram of the program code shown in Fig. 1.

Fig. 3 is a flowchart of the process according to the embodiment of the present invention.

Fig. 4 is a schematic diagram of a communications system.



[0017] Please refer to Fig. 4, which is a schematic diagram of a wireless communications system 600. The wireless communications system 600 is preferably a High Speed Package Access (HSPA) system, and is briefly composed of a network and a plurality of user equipments (UEs). In Fig. 4, the network and the UEs are simply utilized for illustrating the structure of the wireless communications system 600. Practically, the network may comprise a plurality of base stations (or Node B), radio network controllers and so on according to actual demands, and the UEs can be devices such as mobile phones, computer systems, etc.

[0018] Please refer to Fig. 1, which is a functional block diagram of a communications device 100. The communications device 100 can be used for implementing the network or the UE shown in Fig. 4. For the sake of brevity, Fig. 1 only shows an input device 102, an output device 104, a control circuit 106, a central processing unit (CPU) 108, a memory 110, a program code 112, and a transceiver 114 of the communications device 100. In the communications device 100, the control circuit 106 executes the program code 112 in the memory 110 through the CPU 108, thereby controlling an operation of the communications device 100. The communications device 100 can receive signals input by a user through the input device 102, such as a keyboard, and can output images and sounds through the output device 104, such as a monitor or speakers. The transceiver 114 is used to receive and transmit wireless signals, deliver received signals to the control circuit 106, and output signals generated by the control circuit 106 wirelessly. From a perspective of a communications protocol framework, the transceiver 114 can be seen as a portion of Layer 1, and the control circuit 106 can be utilized to realize functions of Layer 2 and Layer 3. Preferably, the communications device 100 is utilized in the HSPA system, supporting Continuous Packet Connectivity (CPC).

[0019] Please continue to refer to Fig. 2. Fig. 2 is a diagram of the program code 112 shown in Fig. 1. The program code 112 includes an application layer 200, a Layer 3 202, and a Layer 2 206, and is coupled to a Layer 1 208. The Layer 3 202 is for performing radio resource control (RRC). The Layer 2 206 is for performing link control, and the Layer 1 208 is a physical layer.

[0020] According to the prior art, after a discontinuous transmission and discontinuous reception (DTX-DRX) operation is enabled, if the UE confirms that an information element (IE) "DTX-DRX timing information" is included in a received reconfiguration message and the content of an IE "CHOICE timing" included in the IE "DTX-DRX timing information" is "new timing", the UE does not only use the content of the IE "DTX-DRX timing information" but stores the content of the IE "DTX-DRX timing information" in a variable DTX_DRX_PARAMS. The embodiment of the present invention provides a CPC program code 220 for the program code 112 in the Layer 3 202, for using the IE "DTX-DRX timing information" without storing the IE "DTX-DRX timing information", so as to improve the DTX-DRX operation, and moreover, to improve efficiency of CPC. Please refer to Fig. 3, which is a flowchart of a process 30 according to an embodiment of the present invention. The process 30 is utilized for improving CPC for a UE in the wireless communications system 600, and can be compiled into the CPC program code 220. The process 30 includes the following steps:

Step 300: Start.

Step 302: Receive a reconfiguration message.

Step 304: Determine the content of a second IE included in a first IE when the first IE is included in the reconfiguration message, wherein the first IE is used for indicating timing information of a DTX-DRX operation and the second IE is used for selecting timing of the DTX-DRX operation.

Step 306: Use the content of the first IE without storing the content of the first IE when the content of the second IE is a new timing.

Step 308: End.



[0021] In the process 30, the first IE is the IE "DTX-DRX timing information", and the second IE is the IE "CHOICE timing". The content of the IE "CHOICE timing" comprises "new timing" or "continue". According to the process 30, when the UE receives the reconfiguration message and confirms that the IE "DTX-DRX timing information" is included in the reconfiguration message, the UE then determines the content of the IE "CHOICE timing" included in the IE "DTX-DRX timing information". When the content of the IE "CHOICE timing" is "new timing", the UE uses the content of the IE "DTX-DRX timing information" and does not store the content of the IE "DTX-DRX timing information". That is, the UE does not store the content of the IE "DTX-DRX timing information" in the variable DTX_DRX_PARAMS.

[0022] In the prior art, when the content of the IE "CHOICE timing" is "new timing", the UE shall store the content of the IE "DTX-DRX timing information" in the variable DTX_DRX_PARAMS when not using it. In comparison, the UE uses the content of the IE "DTX-DRX timing information" and does not store the content of the IE "DTX-DRX timing information" according to the process 30. Therefore, the unnecessary step of storing can be canceled for improving efficiency of CPC.


Claims

1. A method of improving Continuous Packet Connectivity, abbreviated to CPC, for a user equipment, abbreviated to UE, in a wireless communications system, the method comprising:

receiving a reconfiguration message (302); and

determining the content of a second information element, abbreviated to IE, included in a first IE when the first IE is included in the reconfiguration message, wherein the first IE is used for indicating timing information of a discontinuous transmission and discontinuous reception, abbreviated to DTX-DRX, operation and the second IE is used for selecting a timing of the DTX-DRX operation (304);

characterized by using the content of the first IE without storing the content of the first IE when the content of the second IE is a new timing (306).


 
2. The method of claim 1, characterized in that the new timing will be transmitted to the UE when a network terminal in the wireless communications system wants to reconfigure the timing of the DTX-DRX operation.
 
3. The method of claim 1, characterized in that the second IE is a choice timing IE and the content of the choice timing IE comprises "new timing" or "continue".
 
4. The method of claim 1, characterized in that the content of the first IE is not stored in a DTX-DRX operation parameter variable that is used for storing associated parameters of the DTX-DRX operation.
 
5. A communications device (100) used in a wireless communications system for improving Continuous Packet Connectivity, abbreviated to CPC, the communications device (100) comprising:

a control circuit (106) for realizing functions of the communications device (100);

a central processing unit (108) installed in the control circuit (106) for executing a program code (112) to operate the control circuit (106); and

a memory (110) coupled to the central processing unit (108) for storing the program code (112);

wherein the program code (112) comprises instructions to perform the following method steps:

receiving a reconfiguration message (302); and

determining the content of a second information element, abbreviated to IE, included in a first IE when the first IE is included in the reconfiguration message, wherein the first IE is used for indicating timing information of a discontinuous transmission and discontinuous reception, abbreviated to DTX-DRX, operation and the second IE is used for selecting a timing of the DTX-DRX operation (304);

characterized by using the content of the first IE without storing the content of the first IE when the content of the second IE is a new timing (306).


 
6. The communications device (100) of claim 5, characterized in that the new timing will be transmitted to the communications device (100) when a network terminal in the wireless communications system wants to reconfigure the timing of the DTX-DRX operation.
 
7. The communications device (100) of claim 5, characterized in that the second IE is a choice timing IE and the content of the choice timing IE comprises "new timing" or "continue".
 
8. The communications device (100) of claim 5, characterized in that the content of the first IE is not stored in a DTX-DRX operation parameter variable that is used for storing associated parameters of the DTX-DRX operation.
 


Ansprüche

1. Verfahren zur Verbesserung einer kontinuierlichen Datenpaketverbindung, abgekürzt CPC, für ein Anwendergerät, abgekürzt UE, in einem Funkkommunikationssystem, wobei das Verfahren umfasst:

Empfangen einer Rekonfigurationsnachricht (302); und

Bestimmen des Inhaltes eines zweiten Informationselementes, abgekürzt IE, welches von einem ersten IE umfasst ist, wenn das erste IE von der Rekonfigurationsnachricht umfasst ist, wobei das erste IE genutzt wird, um Timinginformationen eines Vorgangs zum diskontinuierlichen Senden und diskontinuierlichen Empfangen, abgekürzt DTX-DRX, anzuzeigen und das zweite IE genutzt wird, um ein Timing des DTX-DRX-Vorgangs auszuwählen (304);

Gekennzeichnet durch

Nutzen des Inhalts des ersten IEs, ohne den Inhalt des ersten IEs zu speichern, wenn der Inhalt der zweiten IEs ein neues Timing ist (306).


 
2. Verfahren gemäß Anspruch 1, dadurch gekennzeichnet, dass das neue Timing an das UE übertragen wird, wenn ein Netzwerkendgerät in dem Funkkommunikationssystem das Timing des DTX-DRX-Vorgangs rekonfigurieren will.
 
3. Verfahren gemäß Anspruch 1, dadurch gekennzeichnet, dass das zweite IE ein Timingauswahl-IE ist und der Inhalt des Timingauswahl-IEs "neues Timing" oder "Fortfahren" umfasst.
 
4. Verfahren gemäß Anspruch,1, dadurch gekennzeichnet, dass der Inhalt des ersten IE nicht in einer DTX-DRX-Betriebsparametervariable gespeichert ist, welche zum Speichern zugehöriger Parameter des DTX-DRX Vorgangs genutzt wird.
 
5. Kommunikationsvorrichtung (100), welche in einem Funkkommunikationssystem zur Verbesserung einer kontinuierlichen Datenpaketverbindung, abgekürzt CPC, genutzt wird, wobei die Kommunikationsvorrichtung (100) umfasst:

einen Steuerschaltkreis (106), um Funktionen der Kommunikationsvorrichtung (100) zu ermöglichen;

eine zentrale Recheneinheit (108), die in dem Steuerschaltkreis (106) installiert ist, um einen Programmcode (112) auszuführen, um den Steuerschaltkreis (106) zu betreiben; und

einen Speicher (110), der mit der zentralen Recheneinheit (108) gekoppelt ist, um den Programmcode (112) zu speichern;

wobei der Programmcode (112) Anweisungen umfasst, um die folgenden Verfahrensschritte auszuführen:

Empfangen einer Rekonfigurationsnachricht (302); und

Bestimmen des Inhaltes eines zweiten Informationselementes, abgekürzt IE, welches von einem ersten IE umfasst ist, wenn das erste IE von der Rekonfigurationsnachricht umfasst ist, wobei das erste IE genutzt wird, um Timing-Informationen für einen Vorgang zum diskontinuierlichen Senden und diskontinuierlichen Empfangen, abgekürzt DTX-DRX, anzuzeigen und das zweite IE genutzt wird, um ein Timing des DTX-DRX-Vorgangs (304) auszuwählen;

Gekennzeichnet durch

Nutzen des Inhalts des ersten IEs ohne den Inhalt des ersten IEs zu speichern, wenn der Inhalt der zweiten IEs ein neues Timing ist (306).


 
6. Kommunikationsvorrichtung (100) gemäß Anspruch 5, dadurch gekennzeichnet, dass das neue Timing an die Kommunikationsvorrichtung (100) übertragen wird, wenn ein Netzwerkendgerät in dem Funkkommunikationssystem das Timing des DTX-DRX-Vorgangs rekonfigurieren will.
 
7. Kommunikationsvorrichtung (100) gemäß Anspruch 5, dadurch gekennzeichnet, dass das zweite IE ein Timingauswahl-IE ist und der Inhalt des Timingauswahl-IEs "neues Timing" oder "Fortfahren" umfasst.
 
8. Kommunikationsvorrichtung (100) gemäß Anspruch 5, dadurch gekennzeichnet, dass der Inhalt des ersten IEs nicht in einer DTX-DRX-Betriebsparametervariable gespeichert ist, welche zum Speichern zugehöriger Parameter des DTX-DRX-Vorgangs genutzt wird.
 


Revendications

1. Procédé d'amélioration d'une Connectivité par Paquet Continue, en abrégé CPC, pour un équipement utilisateur, en abrégé UE, dans un système de communications sans fil, le procédé comprenant le fait :

de recevoir un message de reconfiguration (302) ; et

de déterminer le contenu d'un deuxième élément d'informations, en abrégé IE, inclus dans un premier IE lorsque le premier IE est inclus dans le message de reconfiguration, où le premier IE est utilisé pour indiquer des informations de synchronisation d'une opération de transmission discontinue et de réception discontinue, en abrégé DTX-DRX, et le deuxième IE est utilisé pour sélectionner une synchronisation de l'opération DTX-DRX (304) ;

caractérisé par l'utilisation du contenu du premier IE sans stocker le contenu du premier IE lorsque le contenu du deuxième IE est une nouvelle synchronisation (306).


 
2. Procédé de la revendication 1, caractérisé en ce que la nouvelle synchronisation sera transmise à l'UE lorsqu'un terminal de réseau dans le système de communications sans fil souhaite reconfigurer la synchronisation de l'opération DTX-DRX.
 
3. Procédé de la revendication 1, caractérisé en ce que le deuxième IE est un IE de synchronisation de choix et le contenu de l'IE de synchronisation de choix comprend "nouvelle synchronisation" ou "continuer".
 
4. Procédé de la revendication 1, caractérisé en ce que le contenu du premier IE n'est pas stocké dans une variable de paramètre d'opération DTX-DRX qui est utilisée pour stocker des paramètres associés de l'opération DTX-DRX.
 
5. Dispositif de communications (100) utilisé dans un système de communications sans fil pour améliorer une Connectivité par Paquet Continue, en abrégé CPC, le dispositif de communications (100) comprenant :

un circuit de commande (106) pour réaliser des fonctions du dispositif de communications (100) ;

une unité de traitement centrale (108) installée dans le circuit de commande (106) pour exécuter un code de programme (112) pour faire fonctionner le circuit de commande (106) ; et

une mémoire (110) couplée à l'unité de traitement centrale (108) pour stocker le code de programme (112) ;

dans lequel le code de programme (112) comprend des instructions pour effectuer les étapes de procédé suivantes qui consistent :

à recevoir un message de reconfiguration (302) ; et

à déterminer le contenu d'un deuxième élément d'informations, en abrégé IE, inclus dans un premier IE lorsque le premier IE est inclus dans le message de reconfiguration, où le premier IE est utilisé pour indiquer des informations de synchronisation d'une opération de transmission discontinue et de réception discontinue, en abrégé DTX-DRX, et le deuxième IE est utilisé pour sélectionner une synchronisation de l'opération DTX-DRX (304) ;

caractérisé par l'utilisation du contenu du premier IE sans stocker le contenu du premier IE lorsque le contenu du deuxième IE est une nouvelle synchronisation (306).


 
6. Dispositif de communications (100) de la revendication 5, caractérisé en ce que la nouvelle synchronisation sera transmise au dispositif de communications (100) lorsqu'un terminal de réseau dans le système de communications sans fil souhaite reconfigurer la synchronisation de l'opération DTX-DRX.
 
7. Dispositif de communications (100) de la revendication 5, caractérisé en ce que le deuxième IE est un IE de synchronisation de choix et le contenu de l'IE de synchronisation de choix comprend "nouvelle synchronisation" ou "continuer".
 
8. Dispositif de communications (100) de la revendication 5, caractérisé en ce que le contenu du premier IE n'est pas stocké dans une variable de paramètre d'opération DTX-DRX qui est utilisée pour stocker des paramètres associés de l'opération DTX-DRX.
 




Drawing

















Cited references

REFERENCES CITED IN THE DESCRIPTION



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

Non-patent literature cited in the description