US 11,956,055 B2
Apparatus and method of recursive tree search based multiple-input multiple-output detection
Bin Liu, San Diego, CA (US); Hang Zhou, San Diego, CA (US); Chengzhi Li, San Diego, CA (US); and Jian Gu, San Diego, CA (US)
Assigned to ZEKU TECHNOLOGY (SHANGHAI) CORP. LTD., Shanghai (CN)
Filed by ZEKU TECHNOLOGY (SHANGHAI) CORP. LTD., Shanghai (CN)
Filed on Sep. 22, 2022, as Appl. No. 17/950,332.
Application 17/950,332 is a continuation of application No. PCT/US2021/015141, filed on Jan. 26, 2021.
Claims priority of provisional application 63/024,845, filed on May 14, 2020.
Prior Publication US 2023/0027975 A1, Jan. 26, 2023
Int. Cl. H04B 7/08 (2006.01); H04L 25/03 (2006.01)
CPC H04B 7/0837 (2013.01) [H04L 25/03993 (2013.01)] 20 Claims
OG exemplary drawing
 
12. A method of wireless communication, comprising:
receiving a data stream associated with a channel, the channel including a plurality of transmission layers, and the plurality of transmission layers including a first transmission layer associated with first constellation points and a second transmission layer associated with second constellation points;
selecting a first anchor point from the first constellation points of the first transmission layer;
selecting, based at least in part on the first anchor point, a first subset of constellation points from the first constellation points and the second constellation points;
performing a first iteration of a recursive tree search operation based at least in part on the first anchor point and the first subset of constellation points;
determining a first path metric based at least in part on the first iteration of the recursive tree search operation; and
selecting, based at least in part on the first path metric, a second anchor point from the second constellation points of the second transmission layer, the second anchor point being associated with a second iteration of the recursive tree search operation.