Patent ID: 11871247
Assignee: DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 3:
4. A downlink control channel transmission method, applied to a network side device, comprising:
in a case that occasions of transmissions of a downlink control channel that requires to be performed in different CORESETs configured with different beam directions collide, wherein the collision during the occasions of the transmissions of the downlink control channel comprises: that the occasions of the transmissions of the downlink control channel are the same and configured resources of the different CORESETs overlap, or, that a time interval between the transmissions of the downlink control channel is less than a specified threshold,
selecting a target CORESET from the different CORESETs according to types of search spaces in the different CORESETs where the collision occurs, and transmitting the downlink control channel according to a beam direction of the target CORESET; or,
transmitting the downlink control channel in the different CORESETs according to respective beam directions of the different CORESETs;
wherein, selecting the target CORESET from the different CORESETs according to the types of the search spaces in the different CORESETs where the collision occurs comprises:
selecting, in a case that at least two of the search spaces where the collision occurs are common search spaces, a CORESET with a lowest index as the target CORESET from at least two CORESETs for transmitting the common search spaces;
or, selecting the target CORESET from the different CORESETs according to the types of the search spaces in the different CORESETs where the collision occurs comprises:
selecting, in a case that the search spaces where the collision occurs are all UE-specific search spaces, a CORESET with a lowest index as the target CORESET from the different CORESETs.