US 11,942,964 B2
Methods and apparatus for compactly describing lifted low-density parity-check (LDPC) codes
Shrinivas Kudekar, Roswell, GA (US); and Thomas Joseph Richardson, South Orange, NJ (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Jan. 28, 2022, as Appl. No. 17/649,300.
Application 17/649,300 is a continuation of application No. 16/655,850, filed on Oct. 17, 2019, granted, now 11,239,860.
Application 16/655,850 is a continuation of application No. 15/622,019, filed on Jun. 13, 2017, granted, now 10,469,104, issued on Nov. 5, 2019.
Claims priority of provisional application 62/374,514, filed on Aug. 12, 2016.
Claims priority of provisional application 62/349,784, filed on Jun. 14, 2016.
Prior Publication US 2022/0224356 A1, Jul. 14, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H03M 13/11 (2006.01); H03M 13/00 (2006.01); H03M 13/03 (2006.01); H04L 1/00 (2006.01); H04L 1/1812 (2023.01)
CPC H03M 13/1148 (2013.01) [H03M 13/116 (2013.01); H03M 13/616 (2013.01); H03M 13/6393 (2013.01); H03M 13/036 (2013.01); H03M 13/6306 (2013.01); H03M 13/6505 (2013.01); H03M 13/6516 (2013.01); H04L 1/0041 (2013.01); H04L 1/0056 (2013.01); H04L 1/0058 (2013.01); H04L 1/0067 (2013.01); H04L 1/1812 (2013.01); H04L 1/1819 (2013.01)] 31 Claims
OG exemplary drawing
 
1. A method for wireless communications, comprising:
obtaining a set of information bits;
generating a lifted low density parity check (LDPC) code, the generating including:
determining a lifting size value from a tower of lifting size values, the tower of lifting size values comprising products of a plurality of powers of an integer and a plurality of different lifting size values;
determining a set of cyclic lifting values; and
applying the set of cyclic lifting values to interconnect edges in a number of copies of a base parity check matrix (PCM), the number of copies corresponding to the lifting size value;
encoding the set of information bits based on the lifted LDPC code to produce one or more codewords; and
transmitting the one or more codewords in accordance with a radio technology across a wireless channel.