InterDigital Inc (IDCC)

[Gamco]

United States Patent 7,539,238
Pan , et al. May 26, 2009

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Extended algorithm data estimator


Abstract
A method of data estimation for a Time Division Duplex (TDD) Code Division Multiple Access (CDMA) system or any other system using an extended algorithm (EA) in preference to a truncated algorithm (TA). The EA avoids implementation errors by choice of proper extended matrices, and accepts the use of one piece of hardware. The EA also obviates loss of multiple signals in the tail part of each data field, and avoids errors due to transformation of a Toeplitz matrix to a circulant matrix.


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Inventors: Pan; Jung-Lin (Selden, NY), Huang; Yuejin (Holbrook, NY), Zeira; Ariela (Huntington, NY)
Assignee: InterDigital Patent Holdings, Inc. (Wilmington, DE)

Appl. No.: 12/173,163
Filed: July 15, 2008

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Related U.S. Patent Documents

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Application Number Filing Date Patent Number Issue Date
10657435 Aug., 2008 7408978
60409973 Sep., 2002


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Current U.S. Class: 375/149 ; 375/340
Current International Class: H04L 27/06 (20060101); H04B 1/707 (20060101)
Field of Search: 375/140,146,149,150,260,340,348 370/320,335,342,441