US 12,302,402 B2
Method for transmitting and receiving signal for terminal to perform random access channel procedure in unlicensed band, and apparatus therefor
Jeongsu Lee, Seoul (KR); Sukhyon Yoon, Seoul (KR); Hyunsoo Ko, Seoul (KR); and Seonwook Kim, Seoul (KR)
Assigned to LG Electronics Inc., Seoul (KR)
Appl. No. 17/641,998
Filed by LG Electronics Inc., Seoul (KR)
PCT Filed May 20, 2020, PCT No. PCT/KR2020/006587
§ 371(c)(1), (2) Date Mar. 10, 2022,
PCT Pub. No. WO2021/066278, PCT Pub. Date Apr. 8, 2021.
Claims priority of application No. 10-2019-0123141 (KR), filed on Oct. 4, 2019.
Prior Publication US 2024/0049287 A1, Feb. 8, 2024
Int. Cl. H04W 74/0833 (2024.01); H04W 74/00 (2009.01)
CPC H04W 74/0833 (2013.01) [H04W 74/004 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A method comprising:
receiving, by a terminal, a synchronization signal/physical broadcast channel (SS/PBCH) block from a base station;
obtaining, by the terminal, system information from the PBCH included in the SS/PBCH block;
transmitting, by the terminal to the base station, a message A, based on the system information; and
receiving, by the terminal, a random access response (RAR) in a message B during a window;
wherein, based on a physical random access channel (PRACH) preamble being mapped to a valid physical uplink shared channel (PUSCH) occasion, for both of i) a transmission of a PRACH and a PUSCH and ii) a transmission of only a PRACH without a PUSCH, the window for detecting the message B starts at least one symbol after a last symbol of a PUSCH occasion corresponding to the PRACH preamble.