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:
Apr. 28, 2015

Filed:

Oct. 20, 2011
Applicants:

Dorin Panaitopol, Berkshire, GB;

Ismail Fourari, Berkshire, GB;

Lanto Rakotoharison, Berkshire, GB;

Pierre Marchand, Berkshire, GB;

Inventors:

Dorin Panaitopol, Berkshire, GB;

Ismail Fourari, Berkshire, GB;

Lanto Rakotoharison, Berkshire, GB;

Pierre Marchand, Berkshire, GB;

Assignee:

NEC Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 16/14 (2009.01); H04W 24/00 (2009.01); H04B 17/00 (2006.01); H04L 25/02 (2006.01); H04L 27/00 (2006.01); H04W 8/00 (2009.01); H04W 28/04 (2009.01);
U.S. Cl.
CPC ...
H04W 24/00 (2013.01); H04B 17/0055 (2013.01); H04B 17/007 (2013.01); H04L 25/0202 (2013.01); H04L 27/0006 (2013.01); H04W 8/005 (2013.01); H04W 28/04 (2013.01);
Abstract

A communications apparatus capable of detecting a signal transmitted by another apparatus in a first band of spectrum is described. The apparatus identifies at least one second band of spectrum, different from the first band of spectrum, in which no signal is detected and then determines a noise characteristic for the at least one second band of spectrum. The determined noise characteristic may then be used by an energy detector operating in the first band of spectrum to ensure reliable detection of signals transmitted by the other apparatus.


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