Title:
METHOD AND APPARATUS FOR SENDING SIDELINK FEEDBACK INFORMATION AND METHOD AND APPARATUS FOR RECEIVING SIDELINK FEEDBACK INFORMATION
Document Type and Number:
WIPO Patent Application WO/2023/065151
Kind Code:
A1
Abstract:
Provided in the embodiments of the present application are a method and apparatus for sending sidelink feedback information and a method and apparatus for receiving sidelink feedback information. With regard to HARQ-ACK retransmission from a first device to a network device, if the first device has sent a PSCCH and/or a PSSCH, which are/is associated with an HARQ-ACK, to a second device, but has not received sidelink feedback information that needs to be carried by a PUCCH, then the first device does not send the PUCCH to the network device, such that unnecessary occupation of an unlicensed frequency band can be reduced or prevented, and the network device can be notified to schedule the HARQ-ACK retransmission. With regard to HARQ-ACK retransmission from the second device to the first device, the size of an HARQ-ACK codebook is additionally used for determining a PSFCH resource, such that the occurrence of a PSFCH resource collision during HARQ-ACK retransmission of a multicast can be prevented.
Inventors:
ZHANG JIAN (CN)
JIANG QINYAN (CN)
JI PENGYU (CN)
LI GUORONG (CN)
WANG XIN (CN)
JIANG QINYAN (CN)
JI PENGYU (CN)
LI GUORONG (CN)
WANG XIN (CN)
Application Number:
PCT/CN2021/124985
Publication Date:
April 27, 2023
Filing Date:
October 20, 2021
Export Citation:
Assignee:
FUJITSU LTD (JP)
ZHANG JIAN (CN)
JIANG QINYAN (CN)
JI PENGYU (CN)
LI GUORONG (CN)
WANG XIN (CN)
ZHANG JIAN (CN)
JIANG QINYAN (CN)
JI PENGYU (CN)
LI GUORONG (CN)
WANG XIN (CN)
International Classes:
H04W72/04
Domestic Patent References:
| WO2021071331A1 | 2021-04-15 | |||
| WO2021071330A1 | 2021-04-15 |
Foreign References:
| CN112312351A | 2021-02-02 | |||
| CN111431674A | 2020-07-17 |
Other References:
SPREADTRUM COMMUNICATIONS: "Remaining issues in physical layer procedures for sidelink", 3GPP DRAFT; R1-2002269, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. e-Meeting; 20200420 - 20200430, 11 April 2020 (2020-04-11), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051875513
Attorney, Agent or Firm:
BEIJING SANYOU INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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