US 12,323,991 B2
Method and apparatus for transmitting and receiving signal in wireless communication system
Youngdae Lee, Seoul (KR); Jaehyung Kim, Seoul (KR); Suckchel Yang, Seoul (KR); Seonwook Kim, Seoul (KR); and Joonkui Ahn, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Filed by LG ELECTRONICS INC., Seoul (KR)
Filed on Apr. 6, 2022, as Appl. No. 17/714,889.
Claims priority of provisional application 63/171,500, filed on Apr. 6, 2021.
Prior Publication US 2022/0330317 A1, Oct. 13, 2022
Int. Cl. H04W 72/23 (2023.01); H04L 1/08 (2006.01); H04L 1/1812 (2023.01); H04W 24/08 (2009.01); H04W 56/00 (2009.01); H04W 72/0446 (2023.01); H04W 72/1268 (2023.01); H04W 74/0833 (2024.01); H04W 76/20 (2018.01); H04W 76/30 (2018.01)
CPC H04W 72/23 (2023.01) [H04L 1/08 (2013.01); H04L 1/1812 (2013.01); H04W 24/08 (2013.01); H04W 56/001 (2013.01); H04W 72/0446 (2013.01); H04W 72/1268 (2013.01); H04W 74/0841 (2013.01); H04W 76/20 (2018.02); H04W 76/30 (2018.02)] 15 Claims
OG exemplary drawing
 
1. A method of transmitting a signal by a user equipment (UE) in a radio resource control (RRC) Inactive state in a wireless communication system, the method comprising:
receiving an RRC Release message including configured grant (CG) configuration information in an RRC Connected state;
switching from the RRC Connected state to an RRC Inactive state based on the RRC Release message;
transmitting a CG-based physical uplink shared channel (PUSCH) based on the CG configuration information included in the RRC Release message;
monitoring a physical downlink control channel (PDCCH) carrying downlink control information (DCI) including a hybrid automatic repeat request (HARQ) response to the CG-based PUSCH transmission; and
determining whether to perform retransmission of the CG-based PUSCH based on a result of the PDCCH monitoring,
wherein the CG-based PUSCH is transmitted in the RRC Inactive state, and the CG-based PUSCH is associated with a specific synchronization signal block (SSB) among SSBs broadcast in the wireless communication system, and
wherein the RRC Release message includes a UE-specific identifier related to small data transmission (SDT), and the UE monitors the PDCCH based on the UE-specific identifier related to the SDT in the RRC Inactive state, and
wherein an SDT-dedicated timer which is related to a random access procedure, is started based on the RRC Release message for switching from the RRC Connected state to the RRC Inactive state.