US 11,818,610 B2
Method and apparatus for indicating two-step random access procedure in wireless communication system
Jaehyuk Jang, Suwon-si (KR); Soenghun Kim, Suwon-si (KR); and 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 May 31, 2022, as Appl. No. 17/828,699.
Application 17/828,699 is a continuation of application No. 16/784,550, filed on Feb. 7, 2020, abandoned.
Claims priority of application No. 10-2019-0014882 (KR), filed on Feb. 8, 2019.
Prior Publication US 2022/0295357 A1, Sep. 15, 2022
Int. Cl. H04W 4/00 (2018.01); H04W 36/00 (2009.01); H04W 74/08 (2009.01)
CPC H04W 36/0055 (2013.01) [H04W 74/0833 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method performed by a terminal in a communication system, the method comprising:
receiving, from a first base station, a radio resource control (RRC) message for reconfiguration with sync, the RRC message including first information indicating a dedicated resource for 2-step random access and second information indicating a modulation and coding scheme (MCS) for a physical uplink shared channel (PUSCH) of a message A (MsgA) for the 2-step random access, wherein the first information includes information associated with a random access preamble of the MsgA and information associated with a resource of the PUSCH of the MsgA;
transmitting, to a second base station, the random access preamble of the MsgA on a physical random access channel (PRACH) based on the information associated with a random access preamble of the MsgA;
transmitting, to the second base station, a payload of the MsgA on the resource of the PUSCH based on the information associated with a resource of the PUSCH of the MsgA and the second information; and
receiving, from the second base station, message B (MsgB) as a response to the MsgA.