Communication method, communication apparatus, and storage medium

Patent metadata

Field	Value
Publication number	US-12562845-B2
Application number	US-202118273588-A
Country	US
Kind code	B2
Filing date	Jan 22, 2021
Priority date	Jan 22, 2021
Publication date	Feb 24, 2026
Grant date	Feb 24, 2026

Abstract

A communication method, including: determining first information, the first information being used for indicating a hybrid automatic repeat request process used for receiving a multicast broadcast service or being used for indicating that a hybrid automatic repeat request process is not used for receiving the multicast broadcast service; and, on the basis of the first information, receiving the multicast broadcast service.

First claim

What is claimed is:

1 . A communication method, performed by a terminal and comprising:
determining first information, wherein the first information is used for indicating a hybrid automatic repeat request process used for receiving a multicast broadcast service or the first information is used for indicating that the multicast broadcast service is received without the hybrid automatic repeat request process; and receiving the multicast broadcast service based on the first information; wherein determining the first information comprises:
determining that hybrid automatic repeat request processes used for a plurality of different multicast broadcast services are the same; and
receiving the multicast broadcast service comprises receiving the multicast broadcast service through at least one of methods:
receiving a multicast broadcast service having highest priority with the hybrid automatic repeat request process based on priority of receiving the plurality of different multicast broadcast services,
taking, in response to determining that multicast broadcast service data received and buffered with the hybrid automatic repeat request process is not successfully decoded, the hybrid automatic repeat request process as a hybrid automatic repeat request process used for a multicast broadcast service that is not successfully decoded, and neglecting other multicast broadcast services of the plurality of multicast broadcast services different from the multicast broadcast service that is not successfully decoded, or
starting, in response to determining that a designated multicast broadcast service is received, a hybrid automatic repeat request process occupation timer for a hybrid automatic repeat request process used for the designated multicast broadcast service, and neglecting other multicast broadcast services of the plurality of multicast broadcast services different from the designated multicast broadcast service;
wherein the communication method further comprising:
transmitting data reception state feedback information in response to determining that first multicast broadcast service data stored in a hybrid automatic repeat request buffer for buffering the multicast broadcast service data is covered with second multicast broadcast service data, wherein the data reception state feedback information indicates that the first multicast broadcast service data is successfully decoded, or not transmitting reception state feedback information of the first multicast broadcast service data.

2 . The communication method according to claim 1 , wherein
determining the first information comprises:
determining a dedicated corresponding relation configured for the terminal, wherein the dedicated corresponding relation is a corresponding relation between a value of a hybrid automatic repeat request process number field and a hybrid automatic repeat request process number; and
receiving the multicast broadcast service based on the first information comprises:
determining, based on the first information, a first hybrid automatic repeat request process number for scheduling a first multicast broadcast service, wherein the first hybrid automatic repeat request process number is a hybrid automatic repeat request process number of the terminal corresponding to the value of the hybrid automatic repeat request process number field in scheduling signaling, and
receiving the first multicast broadcast service with a hybrid automatic repeat request process indicated by the first hybrid automatic repeat request process number, and
different terminals have different dedicated corresponding relations.

3 . The communication method according to claim 1 , wherein
determining first information comprises:
determining that the multicast broadcast service is scheduled without the hybrid automatic repeat request process, wherein the multicast broadcast service is scheduled without the hybrid automatic repeat request process comprises: a physical downlink control channel for scheduling the multicast broadcast service does not use the hybrid automatic repeat request process, or a semi-persistent scheduling for scheduling the multicast broadcast service does not use the hybrid automatic repeat request process; and
the receiving the multicast broadcast service comprises:
receiving the multicast broadcast service without the hybrid automatic repeat request process.

4 . The communication method according to claim 3 , wherein determining that the multicast broadcast service is scheduled without the hybrid automatic repeat request process comprises:
determining, in response to determining that a bit of the hybrid automatic repeat request process number field in scheduling signaling for scheduling the multicast broadcast service is a reserved bit, that the multicast broadcast service is scheduled without the hybrid automatic repeat request process.

5 . The communication method according to claim 1 , wherein
determining the first information comprises:
determining that one or more multicast broadcast services are scheduled with a designated hybrid automatic repeat request process; and
receiving the multicast broadcast service based on the first information comprises:
receiving the multicast broadcast service with the designated hybrid automatic repeat request process in response to determining that a to-be-received multicast broadcast service is scheduled with the designated hybrid automatic repeat request process.

6 . The communication method according to claim 5 , wherein the designated hybrid automatic repeat request process is different from a hybrid automatic repeat request process for scheduling a unicast service.

7 . The communication method according to claim 1 , further comprising:
transmitting the data reception state feedback information that indicates decoding failure for other neglected multicast broadcast services.

8 . The communication method according to claim 1 , wherein the hybrid automatic repeat request process occupation timer is started according to at least one of cases:
after multicast broadcast service (MBS) data of the designated multicast broadcast service is received, the hybrid automatic repeat request process occupation timer is started; after the MBS data of the designated multicast broadcast service is received, and in a case that the MBS data is not successfully decoded, the hybrid automatic repeat request process occupation timer is started; after the MBS data of the designated multicast broadcast service is received and feedback information of the MBS data is transmitted, the hybrid automatic repeat request process occupation timer is started; or after the MBS data of the designated multicast broadcast service is received and the feedback information of the MBS data is transmitted, and in a case that the feedback information is not successfully decoded, the hybrid automatic repeat request process occupation timer is started.

9 . The communication method according to claim 1 , further comprising:
stopping the hybrid automatic repeat request process occupation timer according to at least one of cases:
a multicast broadcast service having higher priority than the designated multicast broadcast service is received;
MBS data of the designated multicast broadcast service is successfully decoded; or
the MBS data of the designated multicast broadcast service is successfully decoded, and feedback information of the MBS data is transmitted.

10 . A communication method, performed by a network device and comprising:
determining first information, wherein the first information is used for indicating a hybrid automatic repeat request process used for receiving a multicast broa

Assignees

• Beijing Xiaomi Mobile Software Co Ltd

Inventors

• Jiang Xiaowei

Classifications

• H04L1/1887

  Scheduling and prioritising arrangements · CPC title

• H04L1/1822

  involving configuration of automatic repeat request [ARQ] with parallel processes · CPC title

• H04L2001/0093

  Point-to-multipoint · CPC title

• H04W72/00

  Local resource management · CPC title

• H04L1/1812 Primary

  Hybrid protocols; Hybrid automatic repeat request [HARQ] · CPC title