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:
Oct. 07, 2014

Filed:

Sep. 11, 2009
Applicants:

Haralabos Papadopoulos, San Jose, CA (US);

Ming-yang Chen, Stanford, CA (US);

Sean A. Ramprashad, Los Altos, CA (US);

Inventors:

Haralabos Papadopoulos, San Jose, CA (US);

Ming-Yang Chen, Stanford, CA (US);

Sean A. Ramprashad, Los Altos, CA (US);

Assignee:

NTT DoCoMo, Inc., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04K 1/10 (2006.01); H04L 1/06 (2006.01); H04L 25/03 (2006.01); H04L 27/26 (2006.01); H04L 1/00 (2006.01);
U.S. Cl.
CPC ...
H04L 1/06 (2013.01); H04L 1/005 (2013.01); H04L 25/03216 (2013.01); H04L 27/2647 (2013.01);
Abstract

The techniques and components described herein may improve the performance for a class of reduced-complexity receiver designs for coded OFDM MIMO systems with bit interleaved coded modulation. The receiver structures described are soft-input soft-output inner/outer decoder receiver structures that include one or more of the following: 1) an inner decoder that includes a linear front-end followed by a limited tree-search based on a soft-output M-algorithm; 2) a conventional near-optimal or optimal decoder for the outer binary code; and 3) iterative decoding (ID), whereby decoding (output) information is passed from one decoder module as input to the other and used to refine and improve the inner/outer decoding module outputs.


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