Title:
MULTICAST FEEDBACK CONFIGURATION METHOD AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/221343
Kind Code:
A1
Abstract:
The present application provides a multicast feedback configuration method and device, relates to the technical field of communications, especially V2X, smart driving, and intelligent connected vehicles, and can be used to ensure reliable data transmission and improve resource utilization. The method comprises: a first terminal sending first information to a second terminal, wherein the first information comprises information indicating a feedback configuration of first data, the first data is a data packet sent by the first terminal to the second terminal, the feedback configuration is a first feedback configuration or a second feedback configuration, and the second terminal, in the first feedback configuration, only feeds back a negative acknowledgement message indicating data packet reception failure to the first terminal, and, in the second feedback configuration, feeds back to the first terminal either a positive acknowledgement message indicating data packet reception success or a negative acknowledgement message indicating data packet reception failure. The method is applied to a multicast transmission process.
Inventors:
HUANG HAINING (CN)
ZHANG XINGWEI (CN)
LI CHAO (CN)
ZHANG XINGWEI (CN)
LI CHAO (CN)
Application Number:
PCT/CN2020/088239
Publication Date:
November 05, 2020
Filing Date:
April 30, 2020
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04L1/16; H04L5/00; H04W72/12; H04W74/08
Foreign References:
| CN109792371A | 2019-05-21 | |||
| CN109075921A | 2018-12-21 | |||
| CN103828281A | 2014-05-28 | |||
| CN104620528A | 2015-05-13 | |||
| US20180145796A1 | 2018-05-24 | |||
| CN201936462U | 2011-08-17 |
Other References:
NOKIA ET AL.: "Discussion of physical layer procedures for sidelink", 3GPP TSG-RAN WG1 MEETING #97 R1-1906079, 4 May 2019 (2019-05-04), XP051708121, DOI: 20200622154042Y
LG ELECTRONICS INC.: "Discussion on groupcast HARQ in NR SL", 3GPP TSG-RAN WG2 MEETING #108 R2-1915516, 8 November 2019 (2019-11-08), XP051817258, DOI: 20200622153229PX
HUAWEI ET AL.: "Sidelink physical layer procedures for NR V2X", 3GPP TSG RAN WG1 MEETING #99 R1-1911887, 9 November 2019 (2019-11-09), XP051823069, DOI: 20200622150344X
SONY: "Discussion on HARQ feedback for NR V2X communication", 3GPP TSG RAN WG1 #96BIS R1-1904257, 2 April 2019 (2019-04-02), XP051707169, DOI: 20200622145504
See also references of EP 3955491A4
LG ELECTRONICS INC.: "Discussion on groupcast HARQ in NR SL", 3GPP TSG-RAN WG2 MEETING #108 R2-1915516, 8 November 2019 (2019-11-08), XP051817258, DOI: 20200622153229PX
HUAWEI ET AL.: "Sidelink physical layer procedures for NR V2X", 3GPP TSG RAN WG1 MEETING #99 R1-1911887, 9 November 2019 (2019-11-09), XP051823069, DOI: 20200622150344X
SONY: "Discussion on HARQ feedback for NR V2X communication", 3GPP TSG RAN WG1 #96BIS R1-1904257, 2 April 2019 (2019-04-02), XP051707169, DOI: 20200622145504
See also references of EP 3955491A4
Attorney, Agent or Firm:
BEIJING ZBSD PATENT&TRADEMARK AGENT LTD. (CN)
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