InterDigital Inc (IDCC)

[Gamco]

United States Patent 7,596,171
Kim , et al. September 29, 2009

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Data detection for codes with non-uniform spreading factors


Abstract
A plurality of communication signals is received. Each communication signal has an associated code. At least two of the communication signals has a different spreading factor. The associated codes have a scrambling code period. A total system response matrix has blocks. Each block has one dimension of a length M and another dimension of a length based on in part M and the spreading factor of each communication. M is based on the scrambling code period. Data of the received plurality of communication signals is received using the constructed system response matrix.


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Inventors: Kim; Younglok (Seoul, KR), Pan; Jung-Lin (Selden, KR), Zeira; Ariela (Huntington, NY), Reznik; Alexander (Titusville, NJ)
Assignee: InterDigital Technology Corporation (Wilmington, DE)

Appl. No.: 11/962,779
Filed: December 21, 2007

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Related U.S. Patent Documents

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Application Number Filing Date Patent Number Issue Date
10834321 Apr., 2004 7313165
10064307 May., 2004 6741653


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Current U.S. Class: 375/147
Current International Class: H04B 1/707 (20060101)
Field of Search: 375/147,149 370/441