Patent ID: 11889347
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 5:
6. A method performed by a user equipment (UE) in a wireless communication system, the method comprising:
receiving, from a base station, a system information block 1 (SIB1) including information on a time alignment timer common value;
transmitting, to the base station, a random access preamble of a random access procedure for a transition from a radio resource control (RRC) inactive state to an RRC connected state;
receiving, from the base station, a random access response including a timing advance command, as a response to the random access preamble;
applying the timing advance command based on the reception of the timing advance command included in the random access response;
starting a time alignment timer based on by applying the time alignment timer common value included in the SIB1, based on the reception of the timing advance command included in the random access response; and
transmitting, to the base station, an uplink-common control channel (UL-CCCH) message of the random access procedure based on the reception of the random access response, wherein the UL-CCCH message includes an RRC resume request message.