	US 11,757,500 B2
	Generation of spatial multiplexing modes for multiple input multiple output channel
Pinar Sen, San Diego, CA (US); Peter Gaal, San Diego, CA (US); Naga Bhushan, San Diego, CA (US); Seyong Park, San Diego, CA (US); Renqiu Wang, San Diego, CA (US); Wei Yang, San Diego, CA (US); Krishna Kiran Mukkavilli, San Diego, CA (US); Tingfang Ji, San Diego, CA (US); Muhammad Sayed Khairy Abdelghaffar, San Jose, CA (US); and Hwan Joon Kwon, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Nov. 3, 2021, as Appl. No. 17/453,437.
Claims priority of provisional application 63/199,064, filed on Dec. 4, 2020.
Prior Publication US 2022/0182114 A1, Jun. 9, 2022
Int. Cl. H04B 7/0456 (2017.01); H04B 7/06 (2006.01)

CPC H04B 7/0478 (2013.01) [H04B 7/0482 (2013.01); H04B 7/0639 (2013.01)]

22 Claims

1. A wireless communication device comprising:

a memory; and

one or more processors, coupled to the memory, configured to:

generate a Legendre precoder for line of sight transmission on a multiple-input multiple-output channel based at least in part on computing Legendre polynomials for a quantity N of transmit antennas, wherein the quantity N is a positive integer greater than one; and

transmit a communication using the Legendre precoder,

wherein the one or more processors, to compute the Legendre polynomials, are configured to:

divide an interval [−1 1] into N equally separated points; and

compute a Legendre polynomial of degree n at each point on the interval to form a precoder matrix.