Patent ID: 11864144
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 5:
6. The method according to claim 1, wherein the method further comprises:
when a maximum timing advance (TA) difference of the terminal device is greater than or equal to a first threshold and is less than or equal to a second threshold, determining that a TAT of a timing advance group (TAG) in which a secondary cell is located expires, and asynchronously sending the uplink data to the secondary cell, wherein the maximum TA difference is a maximum difference between TAs of any two of TAGs of the terminal device; or
when a maximum TA difference of the terminal device is greater than a third threshold, determining that a TAT of a TAG in which a secondary cell is located expires, and asynchronously sending the uplink data to the secondary cell, wherein the maximum TA difference is a maximum difference between TAs of any two of TAGs of the terminal device.