The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 12, 2017

Filed:

Apr. 19, 2016
Applicant:

Qualcomm Incorporated, San Diego, CA (US);

Inventors:

Qinghai Gao, Sunnyvale, CA (US);

Nathaniel David Houghton, San Jose, CA (US);

Ahmed Ragab Elsherif, San Jose, CA (US);

Ehab Tahir, Mississauga, CA;

Assignee:

QUALCOMM, Incorporated, San Diego, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 1/00 (2006.01); H04B 7/0452 (2017.01); H04W 72/08 (2009.01);
U.S. Cl.
CPC ...
H04L 1/0003 (2013.01); H04B 7/0452 (2013.01); H04W 72/085 (2013.01);
Abstract

Wireless node selects modulation coding schemes (MCS) and number of spatial streams for transmitting data to devices via a MU-MIMO transmission based on the total number of spatial streams. In one implementation, a wireless node selects first MCS, first number of spatial stream(s) for a first device, and total number of spatial streams to be used in the MU-MIMO transmission so as to maximize the data rate to the first device, then selects a second MCS and a second number of spatial stream(s) for a second device based on the selected total number of spatial streams. In another implementation, the wireless node toggles the first selection of the MCS and spatial stream(s) between the first and second devices for fairness purposes. In another implementation, a wireless selects the MCS and the spatial streams for the receiving nodes so as to maximize the aggregate data rate for the MU-MIMO transmission.


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