WO2022134958A1 - Procédé et appareil de transmission de données, et dispositif et support d'enregistrement - Google Patents

Procédé et appareil de transmission de données, et dispositif et support d'enregistrement Download PDF

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Publication number
WO2022134958A1
WO2022134958A1 PCT/CN2021/131313 CN2021131313W WO2022134958A1 WO 2022134958 A1 WO2022134958 A1 WO 2022134958A1 CN 2021131313 W CN2021131313 W CN 2021131313W WO 2022134958 A1 WO2022134958 A1 WO 2022134958A1
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WO
WIPO (PCT)
Prior art keywords
drb
data
buffered
indication information
reconfiguration message
Prior art date
Application number
PCT/CN2021/131313
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English (en)
Chinese (zh)
Inventor
夏少华
石峰
Original Assignee
展讯通信（上海）有限公司
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Filing date
Publication date
Application filed by 展讯通信（上海）有限公司 filed Critical 展讯通信（上海）有限公司
Publication of WO2022134958A1 publication Critical patent/WO2022134958A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/10—Flow control between communication endpoints
    • H04W28/14—Flow control between communication endpoints using intermediate storage
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/19—Connection re-establishment

Definitions

  • Embodiments of the present application provide a data transmission method, apparatus, device, and storage medium, so as to reduce the delay of data packet transmission.
  • the reconfiguration message includes non-incremental configuration indication information, buffer the data packets buffered on the data radio bearer DRB resources, and release the DRB resources;
  • the reconfiguration message is received through the radio resource control RRC layer.
  • the data packets buffered on the DRB resource are buffered by the PDCP layer according to the first indication information, and the DRB resource is released.
  • the data packet buffered on the DRB resource is buffered.
  • the method further includes:
  • a sending module configured to transmit the buffered data packets after rebuilding the DRB.
  • the reconfiguration message is received through the radio resource control RRC layer.
  • the processing module is further used for:
  • FIG. 1 is a schematic diagram of a network architecture provided by an embodiment of the present application.
  • FIG. 4 is a schematic diagram of an interaction flow of another embodiment of the data transmission method provided by the present application.
  • the non-incremental configuration full Config indication is often carried in the configuration message for performing cell handover or in the first reconfiguration message after Radio Resource Control (RRC) connection re-establishment.
  • RRC Radio Resource Control
  • the terminal device After receiving the full Config instruction, the terminal device needs to release all currently configured data radio bearer (Data Radio Bearer, DRB) resources, and then re-establish the DRB according to the reconfiguration message.
  • DRB Data Radio Bearer
  • the terminal device receives the reconfiguration message sent by the network device side.
  • the reconfiguration message is a configuration message for performing cell handover or a reconfiguration message after RRC connection re-establishment.
  • Step 102 If the reconfiguration message includes non-incremental configuration indication information, buffer the data packets buffered on the DRB resources of the data radio bearer, and release the DRB resources.
  • the RRC layer receives the reconfiguration message. If the reconfiguration message carries the non-incremental configuration full Config indication information, the RRC layer sends the first indication information to the PDCP layer through the RRC layer, which is used to instruct the PDCP layer to release the DRB resources. When the data packets cached on the DRB resource are cached.
  • the buffered data includes: SDUs received by the PDCP from the upper layer but not submitted to the lower layer for transmission, and SDUs that have been submitted to the lower layer for transmission but have not yet received confirmation of successful transmission from the lower layer.
  • the RRC layer sends the first indication information to the PDCP layer to instruct the PDCP layer to buffer the data packets buffered on the DRB resources when releasing the DRB resources, and the implementation process is simple.
  • the PDCP layer establishes an association relationship between the data packet and the EPS bearer ID; if the current network is an independent (Standalone, SA) group Network network, namely the 5G system, the PDCP layer establishes the association between the data packet and the PDU session ID.
  • Non-Standalone, SA non-standalone
  • SA independent group Network network
  • step 103 may be implemented in the following manner:
  • Step 2 If the reconfiguration message includes non-incremental configuration indication information, send first indication information to the Packet Data Convergence Protocol PDCP layer through the RRC layer, where the first indication information is used to instruct the PDCP layer to The data packets buffered on the DRB resource are buffered, and the DRB resource is released;
  • Step 7 Send second indication information to the PDCP layer through the RRC layer according to the reconfiguration message, where the second indication information is used to instruct the PDCP layer to rebuild the DRB;
  • Step 8 Rebuild the DRB through the PDCP layer according to the second indication information
  • Step 10 Transmit the buffered data packets
  • a receiving module 110 configured to receive a reconfiguration message
  • the receiving module 110 is specifically configured to:
  • the data packets buffered on the DRB resource are buffered by the PDCP layer according to the first indication information, and the DRB resource is released.
  • the processing module 111 is specifically used for:
  • the buffered data packets are transmitted.
  • Embodiments of the present application further provide a computer-readable storage medium, on which a computer program is stored.
  • a computer program is stored.
  • the computer program is executed by a processor, the corresponding method in the foregoing method embodiment is implemented.
  • the specific implementation process refer to the foregoing method implementation.
  • its implementation principle and technical effect are similar, and details are not repeated here.
  • An embodiment of the present application further provides a computer program product, including a computer program, when the computer program is executed by a processor, the method as described in any one of the foregoing method embodiments can be implemented.
  • a computer program product including a computer program, when the computer program is executed by a processor, the method as described in any one of the foregoing method embodiments can be implemented.
  • the specific implementation process reference may be made to the foregoing method embodiments. , its implementation principle and technical effect are similar, and details are not repeated here.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Procédé et appareil de transmission de données, et dispositif et support d'enregistrement. Le procédé consiste à : recevoir un message de reconfiguration ; si le message de reconfiguration comprend des informations d'indication de configuration de non-incrément, mettre en mémoire tampon un paquet de données qui est mis en mémoire tampon dans une ressource de support radio de données (DRB), et mettre à disposition la ressource DRB ; et, après le rétablissement du DRB, transmettre le paquet de données mis en mémoire tampon. Au moyen du procédé, une perte de paquet ne survient pas au niveau d'une pile de protocoles radio, ce qui signifie qu'une pile de protocoles radio effectue une transmission de données sans perte, et par comparaison à une retransmission de paquets de données exécutée au moyen d'une couche supérieure ou d'une couche d'application, le délai est relativement faible.
PCT/CN2021/131313 2020-12-22 2021-11-17 Procédé et appareil de transmission de données, et dispositif et support d'enregistrement WO2022134958A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202011527194.2A CN112702765B (zh) 2020-12-22 2020-12-22 数据传输方法、装置、设备和存储介质
CN202011527194.2 2020-12-22

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WO2022134958A1 true WO2022134958A1 (fr) 2022-06-30

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CN112702765B (zh) * 2020-12-22 2023-08-15 展讯通信（上海）有限公司 数据传输方法、装置、设备和存储介质

Citations (5)

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CN109246766A (zh) * 2017-06-15 2019-01-18 夏普株式会社 无线配置方法和相应的用户设备
CN109587677A (zh) * 2017-09-29 2019-04-05 电信科学技术研究院 数据无线承载的恢复方法、终端、基站及核心网设备
CN109862617A (zh) * 2017-10-27 2019-06-07 宏达国际电子股份有限公司 处理完全配置的装置及方法
CN109982378A (zh) * 2012-05-21 2019-07-05 三星电子株式会社 用于在移动通信系统中传送和接收数据的方法和设备
CN112702765A (zh) * 2020-12-22 2021-04-23 展讯通信（上海）有限公司 数据传输方法、装置、设备和存储介质

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Publication number Priority date Publication date Assignee Title
CN100527884C (zh) * 2006-01-04 2009-08-12 华为技术有限公司 一种实现小区间切换的方法
CN109327917B (zh) * 2013-03-22 2022-01-11 华为技术有限公司 建立连接的方法及设备
JP7267701B2 (ja) * 2018-09-20 2023-05-02 シャープ株式会社 端末装置、基地局装置、方法、および、集積回路

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109982378A (zh) * 2012-05-21 2019-07-05 三星电子株式会社 用于在移动通信系统中传送和接收数据的方法和设备
CN109246766A (zh) * 2017-06-15 2019-01-18 夏普株式会社 无线配置方法和相应的用户设备
CN109587677A (zh) * 2017-09-29 2019-04-05 电信科学技术研究院 数据无线承载的恢复方法、终端、基站及核心网设备
CN109862617A (zh) * 2017-10-27 2019-06-07 宏达国际电子股份有限公司 处理完全配置的装置及方法
CN112702765A (zh) * 2020-12-22 2021-04-23 展讯通信（上海）有限公司 数据传输方法、装置、设备和存储介质

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