US 12,218,721 B2
Sounding reference signal (SRS) antenna switching for multiple transceiver user equipment (UE)
Runxin Wang, San Diego, CA (US); Muhammad Sayed Khairy Abdelghaffar, San Jose, CA (US); Yu Zhang, San Diego, CA (US); and Weimin Duan, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Appl. No. 18/020,248
Filed by QUALCOMM Incorporated, San Diego, CA (US)
PCT Filed Aug. 7, 2020, PCT No. PCT/CN2020/107662
§ 371(c)(1), (2) Date Feb. 7, 2023,
PCT Pub. No. WO2022/027544, PCT Pub. Date Feb. 10, 2022.
Prior Publication US 2023/0275629 A1, Aug. 31, 2023
Int. Cl. H04B 7/06 (2006.01); H04B 7/0404 (2017.01); H04L 5/00 (2006.01)
CPC H04B 7/0604 (2013.01) [H04B 7/0404 (2013.01); H04L 5/0023 (2013.01); H04L 5/0051 (2013.01)] 30 Claims
OG exemplary drawing
 
1. A method of wireless communication, by a user equipment (UE) supporting a four transmitter/six receiver (4T6R) antenna configuration, comprising:
reporting an SRS switching capability for the 4T6R UE;
receiving an SRS antenna switching configuration; and
performing SRS antenna switching while transmitting a plurality of sounding reference signals (SRSs) via a plurality of SRS resources with a plurality of transmitters for a plurality of different antenna ports, in accordance with the SRS antenna switching configuration, wherein a quantity of cyclic shifts for each antenna port is based on a ceiling function applied to a relationship between a maximum number of cyclic shifts, nSRScs,max, and a number of antenna ports given by a higher layer parameter, NapSRS.