US 11,864,127 B2
Methods and apparatus to facilitate automatic association of pathloss reference and spatial relations for fast uplink beam switching
Xiao Feng Wang, San Diego, CA (US); Tao Luo, San Diego, CA (US); Yan Zhou, San Diego, CA (US); Xiaoxia Zhang, San Diego, CA (US); and Jing Sun, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Jun. 3, 2020, as Appl. No. 16/892,018.
Claims priority of provisional application 62/857,252, filed on Jun. 4, 2019.
Prior Publication US 2020/0389852 A1, Dec. 10, 2020
Int. Cl. H04W 52/24 (2009.01); H04W 16/28 (2009.01); H04L 5/00 (2006.01); H04W 76/27 (2018.01); H04B 7/06 (2006.01); H04L 25/02 (2006.01); H04W 52/10 (2009.01); H04W 72/044 (2023.01); H04W 80/02 (2009.01)
CPC H04W 52/242 (2013.01) [H04B 7/0695 (2013.01); H04L 5/0051 (2013.01); H04L 25/0226 (2013.01); H04W 16/28 (2013.01); H04W 52/10 (2013.01); H04W 72/046 (2013.01); H04W 76/27 (2018.02); H04W 80/02 (2013.01)] 27 Claims
OG exemplary drawing
 
1. A method of wireless communication at a user equipment (UE), comprising:
receiving a first power control parameter identifying a first pathloss reference signal associated with a first beam;
receiving a pathloss and spatial relation information linking indicator providing a relationship between a first set of spatial relation information signals and a second set of pathloss reference signals;
determining a second pathloss reference signal for a transmit beam based on the pathloss and spatial relation information linking indicator and without receiving a second power control parameter identifying the second pathloss reference signal for the transmit beam, the transmit beam being different from the first beam; and
measuring pathloss for the transmit beam based on the second pathloss reference signal.