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. 13, 2016

Filed:

Oct. 01, 2015
Applicant:

Qualcomm Incorporated, San Diego, CA (US);

Inventors:

Sameer Vermani, San Diego, CA (US);

Simone Merlin, Solana Beach, CA (US);

Eugene Jong-Hyon Baik, San Diego, CA (US);

Bin Tian, San Diego, CA (US);

Tevfik Yucek, Santa Clara, CA (US);

Assignee:

QUALCOMM Incorporated, San Diego, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04W 74/08 (2009.01); H04W 16/14 (2009.01); H04W 72/04 (2009.01); H04L 27/00 (2006.01); H04L 27/26 (2006.01);
U.S. Cl.
CPC ...
H04W 16/14 (2013.01); H04L 27/0006 (2013.01); H04L 27/2601 (2013.01); H04W 72/0446 (2013.01); H04W 72/0453 (2013.01); H04W 74/0816 (2013.01);
Abstract

Methods and systems disclosed provide for clear channel assessment of first and second communication channels. In one aspect, a first primary channel has a first frequency spectrum bandwidth and a second primary channel has a second frequency spectrum bandwidth including the first frequency spectrum bandwidth. A method may include performing a first back-off procedure based on whether the first primary channel is idle if a transmission bandwidth for a wireless message is the first frequency spectrum bandwidth, performing a second back-off procedure based on whether the second primary channel is idle if the transmission bandwidth for the wireless message is greater than the first frequency spectrum bandwidth, and transmitting the wireless message based on a completion of the performed back off procedure.


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