US 11,700,639 B2
Method and apparatus for releasing PUSCH resources assigned for random access in wireless communication system
Anil Agiwal, Suwon-si (KR)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Jul. 6, 2022, as Appl. No. 17/858,478.
Application 17/858,478 is a continuation of application No. 17/109,599, filed on Dec. 2, 2020, granted, now 11,419,145.
Claims priority of provisional application 62/948,363, filed on Dec. 16, 2019.
Prior Publication US 2022/0346140 A1, Oct. 27, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 74/02 (2009.01); H04W 76/36 (2018.01); H04W 76/27 (2018.01); H04W 74/08 (2009.01)
CPC H04W 74/02 (2013.01) [H04W 74/0833 (2013.01); H04W 76/27 (2018.02); H04W 76/36 (2018.02)] 20 Claims
OG exemplary drawing
 
1. A method performed by a terminal in a wireless communication system, the method comprising:
receiving, from a base station, a message for a master cell group (MCG) including information configuring a contention free random access resource for 2-step random access procedure, wherein the contention free random access resource for 2-step random access procedure comprises a dedicated random access preamble and a dedicated physical uplink shared channel (PUSCH) resource;
transmitting, to the base station, a message A (MSGA) preamble for the 2-step random access procedure based on the information;
identifying whether the 2-step random access procedure is completed;
releasing the contention free random access resource comprising the dedicated random access preamble and the dedicated PUSCH resource based on whether the 2-step random access procedure is completed; and
releasing the contention free random access resource comprising the dedicated random access preamble and the dedicated PUSCH resource, in case that a T304 timer of the MCG configured based on the message expires.