US 12,244,377 B2
Compression of channel estimates
Praneet Chivate, Nashua, NH (US); and Juwendo Denis, Boston, MA (US)
Assigned to Parallel Wireless, Inc., Nashua, NH (US)
Filed by Parallel Wireless, Inc., Nashua, NH (US)
Filed on Feb. 21, 2023, as Appl. No. 18/172,288.
Claims priority of provisional application 63/268,701, filed on Feb. 28, 2022.
Claims priority of provisional application 63/268,273, filed on Feb. 20, 2022.
Prior Publication US 2023/0421217 A1, Dec. 28, 2023
Int. Cl. H04B 7/06 (2006.01); H04L 5/00 (2006.01)
CPC H04B 7/0617 (2013.01) [H04L 5/0051 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A method for port reduction, comprising:
calculating, at a distributed unit (DU), beamforming weights based on received demodulation reference signal (DMRS) channel estimates;
sending the calculated beamforming weights to a radio unit (RU);
applying, at the RU, port reduction to DMRS symbols based on the calculated beamforming weights;
compressing in-phase and quadrature (IQ) data and received DMRS symbol data to compensate for an underlying bandwidth increase,
thereby enabling beamforming at the RU.