US 12,438,759 B2
Codebook and non-codebook support for SRS with 6 ports
Haitong Sun, Cupertino, CA (US); Dawei Zhang, Saratoga, CA (US); Hong He, San Jose, CA (US); Jie Cui, San Jose, CA (US); Seyed Ali Akbar Fakoorian, San Diego, CA (US); Sigen Ye, San Diego, CA (US); and Wei Zeng, Saratoga, CA (US)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Sep. 23, 2022, as Appl. No. 17/934,632.
Prior Publication US 2024/0106690 A1, Mar. 28, 2024
Int. Cl. H04L 27/26 (2006.01); H04W 72/23 (2023.01)
CPC H04L 27/2613 (2013.01) [H04L 27/2605 (2013.01); H04W 72/23 (2023.01)] 20 Claims
OG exemplary drawing
 
1. A processor of a user equipment (UE) configured to:
receive a sounding reference signal (SRS) configuration from a network, wherein the SRS configuration comprises a 6 port SRS configuration including a cyclic shift step size, wherein the cyclic shift step size is a prime number; and
generate, for transmission from each of 6 ports, SRS on one or more SRS resources corresponding to the SRS configuration, wherein 6 port SRS is transmitted based on (n_CS+i*CS_step) mod CS_max, where, n_CS is a cyclic shift, CS_max is a maximum number of cyclic shifts, CS_step is the cyclic shift step size and i is a port number.