US 11,888,593 B2
Scaling and quantization for channel state information reporting
Stephen Jay Shellhammer, Ramona, CA (US); Bin Tian, San Diego, CA (US); Alireza Raissinia, Monte Sereno, CA (US); and Simone Merlin, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Jul. 21, 2021, as Appl. No. 17/382,145.
Prior Publication US 2023/0033864 A1, Feb. 2, 2023
Int. Cl. H04B 7/06 (2006.01); H04L 25/02 (2006.01); H04L 5/00 (2006.01); H04B 17/318 (2015.01)
CPC H04L 5/0053 (2013.01) [H04B 17/318 (2015.01)] 50 Claims
OG exemplary drawing
 
1. A method for wireless communication at a station (STA), comprising:
receiving a null data packet on a plurality of subcarriers of a channel;
generating a channel state information matrix for each subcarrier of the plurality of subcarriers of the channel;
scaling each value in the channel state information matrix using a power-of-two value based at least in part on a determined value in the channel state information matrix, wherein each value in the channel state information matrix is scaled such that a real part and an imaginary part of each scaled value of the channel state information matrix is less than a largest positive value of a binary word having a word size configured for the channel state information matrix and greater than half of the largest positive value of the binary word; and
transmitting, to a second device, a channel state information report that includes the scaled values of the channel state information matrix.