US 11,943,642 B2
Apparatus and method for beam failure recovery in wireless communication system
Byounghoon Jung, 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 Jun. 14, 2021, as Appl. No. 17/346,859.
Application 17/346,859 is a continuation of application No. 16/376,296, filed on Apr. 5, 2019, granted, now 11,039,325.
Claims priority of application No. 10-2018-0039850 (KR), filed on Apr. 5, 2018.
Prior Publication US 2021/0306880 A1, Sep. 30, 2021
Int. Cl. H04W 24/04 (2009.01); H04B 7/06 (2006.01); H04W 24/08 (2009.01); H04W 56/00 (2009.01); H04W 72/044 (2023.01); H04W 72/542 (2023.01); H04W 74/02 (2009.01); H04W 74/0833 (2024.01); H04W 76/11 (2018.01); H04W 80/02 (2009.01); H04W 88/02 (2009.01); H04W 68/00 (2009.01); H04W 76/28 (2018.01)
CPC H04W 24/04 (2013.01) [H04B 7/0617 (2013.01); H04W 24/08 (2013.01); H04W 56/001 (2013.01); H04W 72/046 (2013.01); H04W 72/542 (2023.01); H04W 74/02 (2013.01); H04W 74/0833 (2013.01); H04W 76/11 (2018.02); H04W 80/02 (2013.01); H04W 88/023 (2013.01); H04W 68/00 (2013.01); H04W 76/28 (2018.02)] 20 Claims
OG exemplary drawing
 
1. A method performed by a terminal in wireless communication system, the method comprising:
transmitting, to a base station, a random access preamble based on a random access procedure;
receiving, from the base station, a random access response corresponding to the random access preamble, wherein the random access response includes an uplink grant;
identifying whether the random access procedure is initiated by beam failure recovery; and
transmitting, to the base station, an uplink message based on the uplink grant,
wherein the uplink message includes beam failure recovery (BFR) media access control (MAC) control element(CE) after identifying that the random access procedure is initiated by beam failure recovery.