US 11,943,051 B2
Rate matching and channel interleaving for probabilistic shaping
Jun Ma, San Diego, CA (US); Xiaoxia Zhang, San Diego, CA (US); Morteza Soltani, San Diego, CA (US); Raviteja Patchava, San Diego, CA (US); Elyes Balti, Austin, TX (US); Tao Luo, San Diego, CA (US); Iyab Issam Sakhnini, San Diego, CA (US); Zhifei Fan, San Diego, CA (US); and Dung Ngoc Doan, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Sep. 22, 2021, as Appl. No. 17/482,315.
Prior Publication US 2023/0090492 A1, Mar. 23, 2023
Int. Cl. H04L 1/00 (2006.01); H03M 13/25 (2006.01); H04L 27/34 (2006.01); H03M 13/00 (2006.01); H03M 13/11 (2006.01); H03M 13/27 (2006.01); H03M 13/29 (2006.01); H04L 1/1812 (2023.01); H04L 1/1829 (2023.01)
CPC H04L 1/0071 (2013.01) [H03M 13/255 (2013.01); H04L 1/0057 (2013.01); H04L 27/34 (2013.01); H03M 13/1102 (2013.01); H03M 13/27 (2013.01); H03M 13/2703 (2013.01); H03M 13/271 (2013.01); H03M 13/2906 (2013.01); H03M 13/6356 (2013.01); H04L 1/0013 (2013.01); H04L 1/0067 (2013.01); H04L 1/1812 (2013.01); H04L 1/1864 (2013.01)] 29 Claims
OG exemplary drawing
 
1. An apparatus for wireless communication at a user equipment (UE), comprising:
memory; and
at least one processor coupled to the memory and configured to:
encode a plurality of bits associated with quadrature amplitude modulation (QAM), the plurality of bits corresponding to a circular buffer associated with at least one redundancy version (RV), the plurality of bits including a plurality of systematic bits, wherein the plurality of systematic bits are grouped into clusters of systematic bits corresponding to constellation shaping of the QAM;
transfer the plurality of bits from the circular buffer associated with the at least one RV to an amplitude bit buffer and a sign bit buffer for the QAM, wherein one or more of the clusters of systematic bits are transferred to the amplitude bit buffer to preserve the constellation shaping; and
map the plurality of bits from the amplitude bit buffer and the sign bit buffer to a plurality of modulation symbols.