Method and device for setting time advance group identifier, method and device for configuring time advance group identifier, and user equipment

User Equipment (UE), comprising:

• a processor;
• and
• memory storing instructions for execution by the processor,
• wherein the processor is configured to:
• receive configuration information sent by a base station, the configuration information comprising a Supplement UpLink (SUL) carrier configured for a serving cell of the UE;
• set, according to the configuration information, TAG IDs for the SUL carrier and a non-SUL carrier of the serving cell of the UE respectively;
• and
• in response to that a time alignment timer associated with a TAG corresponding to a serving cell does not run, not initiate, by a Media Access Control (MAC) entity, any UL transmission other than random access pilot transmission in the serving cell or on the SUL carrier and the non-SUL carrier, associated with the TAG, of the serving cell.

A non-transitory computer-readable storage medium having computer instructions stored thereon, the computer instructions being executed by a processor to implement:

• receiving configuration information sent by a base station, the configuration information comprising a Supplement UpLink (SUL) carrier configured for a serving cell of the UE;
• setting, according to the configuration information, TAG IDs for the SUL carrier and a non-SUL carrier of the serving cell of the UE respectively;
• and
• in response to that a time alignment timer associated with a TAG corresponding to a serving cell does not run, not initiating, by a Media Access Control (MAC) entity, any UL transmission other than random access pilot transmission in the serving cell or on the SUL carrier and the non-SUL carrier, associated with the TAG, of the serving cell,
• wherein the configuration information further comprises the TAG IDs configured for the SUL and non-SUL carriers of the serving cell of the UE respectively, and the computer instructions are executed by the processor to:
• directly set, according to the configuration information, the corresponding TAG IDs for the SUL and non-SUL carriers of the serving cell of the UE;
• or
• the processor is further configured to:
• set, according to the configuration information, the TAG IDs for the SUL and non-SUL carriers of the serving cell of the UE in a stipulated manner respectively.