Patent ID: 11924901
Assignee: BEJING JINGSHI INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A wireless communication method, using a terminal or a chip used in a terminal, wherein a base station provides a carrier aggregation service for the terminal by using at least two serving cells, wherein the at least two serving cells comprise a first serving cell and a second serving cell, and the method comprises:
detecting that downlink communication of the first serving cell fails;
upon detecting that downlink communication of the first serving cell fails, determining that downlink communication of the second serving cell is normal;
sending a communication failure recovery request on an uplink channel of the second serving cell, the communication failure recovery request indicating a request to recover from a downlink communication failure of the first serving cell, wherein the communication failure recovery request comprises an index of the first serving cell and a candidate reference signal resource indication of the first serving cell;
detecting a communication failure recovery response on a downlink channel of the second serving cell, the communication failure recovery response indicating a downlink communication resource of the first serving cell;
wherein the terminal selects, from the serving cells in normal communication, a serving cell having the best channel quality of a downlink channel as of the second serving cell, if there are a plurality of serving cells in normal communication.