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:
Jun. 28, 2016

Filed:

Oct. 02, 2012
Applicant:

Qualcomm Incorporated, San Diego, CA (US);

Inventors:

Shu Du, Milpitas, CA (US);

Zhanfeng Jia, Belmont, CA (US);

Ning Zhang, Saratoga, CA (US);

Qinghai Gao, San Jose, CA (US);

Balaji Srinivasan Babu, Tamil Nadu, IN;

Assignee:

QUALCOMM Incorporated, San Diego, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B 7/04 (2006.01); H04W 72/12 (2009.01);
U.S. Cl.
CPC ...
H04B 7/0452 (2013.01); H04W 72/1221 (2013.01); H04W 72/121 (2013.01);
Abstract

An access point determines the buffered data for each station of a plurality of stations in a BSS and groups the stations with similar station characteristics. The transmission time to the stations in a group can be apportioned. The groups can be ordered based on station characteristics and a transmission history. A sounding for a group can be performed based on the order. The MU-MIMO transmission for the group can be performed until a first condition is met. If the first condition is met, then the sounding and the MU-MIMO transmission for a next group can be performed, according to the order, until a second condition is met. The first condition can include an apportioned transmission time having expired and/or the buffers for the group being flushed. The second condition can include new data having been buffered by the AP and/or all buffered data having been transmitted.


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