Patent ID: 11943057
Assignee: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method of indicating a sidelink Hybrid Automatic Repeat reQuest (HARQ) feedback, comprising:
allocating, by a base station, a target resource to a user equipment to perform sidelink communication; and
sending, by the base station, a downlink control signaling to the user equipment, wherein the downlink control signaling comprises the target resource and first indication information; the first indication information is configured for at least one of followings:
in response to determining that the user equipment uses the target resource allocated by the base station to perform sidelink unicast communication, indicating whether to perform the sidelink HARQ feedback;
in response to determining that the user equipment uses the target resource allocated by the base station to perform sidelink multicast communication, indicating whether to perform the sidelink HARQ feedback; or
in response to determining that the user equipment uses the target resource allocated by the base station to perform the sidelink multicast communication, indicating a feedback manner of performing the sidelink HARQ feedback;
wherein the feedback manner indicates feedback operations performed by a data receiving end of the sidelink multicast communication, a data sending end of the sidelink multicast communication being the user equipment, and the feedback manner comprises one of:
feeding back, by the data receiving end, NACK only in response to incorrect reception of data; or
feeding back, by the data receiving end, ACK in response to correct reception of data, and feeding back NACK in response to incorrect reception of data;
wherein the downlink control signaling further comprises second indication information; wherein the second indication information indicates that the sidelink communication performed by the user equipment is the sidelink unicast communication or the sidelink multicast communication; or
the downlink control signaling further comprises third indication information; wherein the third indication information indicates a target address for performing the sidelink communication, and the target address indicates the sidelink communication performed by the user equipment is the sidelink unicast communication or the sidelink multicast communication.