Method for radio communication with base station, by user equipment (UE), apparatus in UE for radio communication with base station, a method for radio communication with a UE by a base station, and an apparatus in a base station for radio communication with a UE are provided. The method for radio communication with a base station, by a UE, includes determining whether to start a first timer based on a predetermined condition, in response to a buffer status reporting triggered; starting the first timer in response to the predetermined condition being satisfied; in response to an uplink resource for a buffer status report transmission being available before the first timer expires, transmitting an uplink packet including a buffer status report using the available uplink resource; and in response to no uplink resource for the buffer status report transmission being available and the first timer expiring, transmitting a scheduling request to the base station.