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:
Nov. 15, 2016

Filed:

Sep. 03, 2015
Applicant:

Spreadtrum Communications Usa Inc., San Diego, CA (US);

Inventors:

David Haub, San Diego, CA (US);

Zhigang Xu, San Diego, CA (US);

Jarrett Malone, Carlsbad, CA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/10 (2006.01); H03G 3/30 (2006.01); H04L 25/03 (2006.01); H04B 1/12 (2006.01); H04B 17/29 (2015.01); H04B 17/327 (2015.01); H04L 12/26 (2006.01);
U.S. Cl.
CPC ...
H04B 1/1027 (2013.01); H03G 3/3078 (2013.01); H04B 1/123 (2013.01); H04B 17/29 (2015.01); H04B 17/327 (2015.01); H04L 25/03057 (2013.01); H04L 43/16 (2013.01);
Abstract

A receiver architecture optimizes receiver performance in the presence of interference. In various embodiments, power estimation circuits are used with variable selectivity to determine the exact nature of the interference and to optimize the performance correspondingly. The variable selectivity is achieved using stages of filtering with progressively narrower bandwidths. Also, the actual method of optimizing the receiver performance is an improvement compared to the traditional techniques in that the gain settings and the baseband filter order (stages to be used) will be optimized based on the nature of the interference as determined by the power detector measurements. For a device such as a cellular phone that operates in a dynamic and changing environment where interference is variable, embodiments advantageously provide the capability to modify the receiver's operational state depending on the interference.


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