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:
Sep. 09, 2014

Filed:

Nov. 27, 2009
Applicants:

Jiye Liang, Beijing, CN;

Michael Fan, San Diego, CA (US);

Yisheng Xue, Beijing, CN;

Inventors:

Jiye Liang, Beijing, CN;

Michael Fan, San Diego, CA (US);

Yisheng Xue, Beijing, CN;

Assignee:

QUALCOMM Incorporated, San Diego, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03D 1/04 (2006.01); H04B 1/10 (2006.01); H04B 1/7107 (2011.01);
U.S. Cl.
CPC ...
H04B 1/10 (2013.01); H04B 1/71072 (2013.01); H04B 1/7107 (2013.01);
Abstract

Techniques for interference cancellation in a CDMA system. In an exemplary embodiment, a channel set scrambled using a secondary scrambling code (SSC) is estimated and cancelled along with a channel set scrambled using a primary scrambling code (SSC). The estimation and cancellation of the SSC channel set may proceed in series with the estimation and cancellation of the PSC channel set. Alternatively, the estimation of the SSC channel set may proceed in parallel with the estimation of the PSC channel set, and the cancellations of the PSC and SSC channel sets may be simultaneously performed. Multiple iterations of such estimation and cancellation may be performed in a successive interference cancellation (SIC) scheme.


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