US 11,877,311 B2
Rate selection in multiple-input multiple-output communication systems
Wanlu Sun, San Diego, CA (US); Masoumeh Sadeghi, San Diego, CA (US); Siddhartha Mallik, San Diego, CA (US); Anthony Edet Ekpenyong, San Diego, CA (US); Jing Jiang, San Diego, CA (US); and Tamer Adel Kadous, San Diego, CA (US)
Assigned to Virewirx, Inc., San Diego, CA (US)
Filed by Virewirx, Inc., San Diego, CA (US)
Filed on Oct. 28, 2021, as Appl. No. 17/452,677.
Claims priority of provisional application 63/108,170, filed on Oct. 30, 2020.
Prior Publication US 2022/0140936 A1, May 5, 2022
Int. Cl. H04W 72/542 (2023.01); H04B 7/0456 (2017.01); H04L 1/00 (2006.01); H04L 25/02 (2006.01); H04W 28/06 (2009.01); H04W 72/541 (2023.01); H04W 72/566 (2023.01); H04B 7/0413 (2017.01)
CPC H04W 72/542 (2023.01) [H04B 7/0456 (2013.01); H04L 1/0003 (2013.01); H04L 25/0228 (2013.01); H04W 28/06 (2013.01); H04W 72/541 (2023.01); H04W 72/566 (2023.01); H04B 7/0413 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of multi-cluster user equipment selection and precoding coefficient determination, the method comprising:
selecting first user equipments and associated first ranks for a first cluster that includes the first user equipments and first network nodes;
selecting second user equipments and associated second ranks for a second cluster that includes the second user equipments and second network nodes;
allocating frequency and time resources to the first cluster and the second cluster prior to the selecting the first user equipments and associated ranks;
determining one or more user equipments of the second user equipments to protect;
computing precoding coefficients for the first cluster with nulling based on the one or more user equipments of the second user equipments to protect; and
causing wireless transmission from the first network nodes to the first user equipments using the precoding coefficients.