US 12,414,118 B2
Guard period optimization for multi-antenna user equipments
Wooseok Nam, San Diego, CA (US); Alexandros Manolakos, San Diego, CA (US); Tao Luo, San Diego, CA (US); Peter Gaal, San Diego, CA (US); and Joseph Binamira Soriaga, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Sep. 16, 2021, as Appl. No. 17/476,895.
Application 17/476,895 is a division of application No. 16/406,544, filed on May 8, 2019, abandoned.
Claims priority of provisional application 62/669,853, filed on May 10, 2018.
Prior Publication US 2022/0007402 A1, Jan. 6, 2022
Int. Cl. H04W 72/21 (2023.01); H01Q 1/24 (2006.01); H04W 84/04 (2009.01); H04W 88/02 (2009.01)
CPC H04W 72/21 (2023.01) [H01Q 1/243 (2013.01); H04W 84/042 (2013.01); H04W 88/02 (2013.01)] 26 Claims
OG exemplary drawing
 
1. A method of selecting antenna configurations for communicating in a wireless communication network by a user equipment, the method comprising:
transmitting, to a base station, a scheduled sounding reference signal (SRS) transmission using a first antenna configuration; and
receiving, from the base station, a scheduled downlink transmission using a second antenna configuration that is different than the first antenna configuration without using a rear guard period between the transmitting of the scheduled SRS transmission and the receiving of the scheduled downlink transmission based on a determination that the rear guard period is not needed between the scheduled SRS transmission and the scheduled downlink transmission, wherein the determination that the rear guard period is not needed is based on a determination that twice a propagation delay between the base station and the user equipment is sufficient to allow for changing between the first antenna configuration and the second antenna configuration without the rear guard period.