US 12,463,773 B2
Enhanced cyclic shift configuration for multi-port sounding reference signals
Yitao Chen, San Diego, CA (US); Mostafa Khoshnevisan, 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 Aug. 11, 2022, as Appl. No. 17/819,265.
Prior Publication US 2024/0056252 A1, Feb. 15, 2024
Int. Cl. H04L 5/00 (2006.01)
CPC H04L 5/0051 (2013.01) 26 Claims
OG exemplary drawing
 
1. A method of wireless communication performed by a user equipment (UE), the method comprising:
receiving a configuration for a plurality of groups of sounding reference signal (SRS) ports associated with an SRS resource, the configuration indicating one or more cyclic shift parameters for each group of SRS ports of the plurality of groups of SRS ports; and
transmitting one or more SRSs using at least one group of SRS ports of the plurality of groups of SRS ports based at least in part on the one or more cyclic shift parameters associated with the at least one group of SRS ports,
wherein the one or more cyclic shift parameters indicate an antenna port cyclic shift value for a first SRS port in the at least one group of SRS ports, and wherein cyclic shift values for other SRS ports within the at least one group of SRS ports are uniformly distributed based on the antenna port cyclic shift value of the first SRS port, and
wherein the plurality of groups of SRS ports includes a total number of four or more SRS ports, the method further comprising:
determining whether the antenna port cyclic shift value of a first SRS port in the SRS resource is a value in a first half of antenna port cyclic shift values or a value in a second half of antenna port cyclic shift values, and
wherein different groups of the plurality of groups of SRS ports are configured with a same comb offset value based on the antenna port cyclic shift value of the first SRS port in the SRS resource being the value in the first half of antenna port cyclic shift values,
wherein different groups of the plurality of groups of SRS ports are configured with different comb offset values based on the antenna port cyclic shift value of the first SRS port in the SRS resource being the value in the second half of antenna port cyclic shift values.