Title:
DATA SENDING AND RECEIVING METHOD AND APPARATUS
Document Type and Number:
WIPO Patent Application WO/2023/274182
Kind Code:
A1
Abstract:
The present application relates to the technical field of communications, and provides a data sending and receiving method and apparatus, for use in solving the problem of waste of multicast service transmission resources and improving spectrum utilization. The method comprises: a first device sends channel sounding reference signal (SRS) configuration information to at least one terminal device in a first multicast group, the SRS configuration information indicating a first time-frequency resource for sending an SRS, a sequence of the SRS, and an antenna port for sending the SRS; the first device receives at least one SRS from the at least one terminal device on the first time-frequency resource, and determines multicast channel state information on the basis of the at least one SRS, wherein the time-frequency resources carrying at least one SRS are the same, and the sequences of at least one SRS are the same; the first device determines a physical layer multicast beamforming or precoding matrix according to the multicast channel state information; and the first device sends multicast data to the at least one terminal device according to the physical layer multicast beamforming or precoding matrix.
Inventors:
LIU RONGKUAN (CN)
XIANG ZHENGZHENG (CN)
LU LEI (CN)
XIANG ZHENGZHENG (CN)
LU LEI (CN)
Application Number:
PCT/CN2022/101686
Publication Date:
January 05, 2023
Filing Date:
June 27, 2022
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04W4/06; H04W24/02
Foreign References:
| US20210152307A1 | 2021-05-20 | |||
| US20210153164A1 | 2021-05-20 | |||
| CN112838916A | 2021-05-25 |
Attorney, Agent or Firm:
BEIJING ZBSD PATENT & TRADEMARK AGENT LTD. (CN)
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