US 11,870,519 B2
Methods, systems, and devices to compress reference signals to enhance massive multiple-input-multiple-output (MIMO) uplink in split radio access network (RAN) deployments
Salam Akoum, Austin, TX (US); Aditya Chopra, Austin, TX (US); and Milap Majmundar, Austin, TX (US)
Assigned to AT&T Intellectual Property I, L.P., Atlanta, GA (US)
Filed by AT&T Intellectual Property I, L.P., Atlanta, GA (US)
Filed on Aug. 15, 2022, as Appl. No. 17/887,654.
Claims priority of provisional application 63/333,890, filed on Apr. 22, 2022.
Prior Publication US 2023/0344474 A1, Oct. 26, 2023
Int. Cl. H04W 84/12 (2009.01); H04L 5/00 (2006.01); H04B 7/0456 (2017.01)
CPC H04B 7/0456 (2013.01) [H04L 5/0053 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A radio unit device, comprising:
a processing system including a processor; and
a memory that stores executable instructions that, when executed by the processing system, facilitate performance of operations, the operations comprising:
obtaining compressed sounding reference signal (SRS) information associated with a user end device from a distributed unit device, wherein the distributed unit device compresses SRS information utilizing a first compression algorithm resulting in the compressed SRS information;
decompressing the compressed SRS information utilizing a first decompression algorithm resulting in the SRS information;
determining SRS channel estimation based on the SRS information;
determining a group of beamforming weights based on the SRS channel estimation; and
adjusting an antenna array according to the group of beamforming weights.