United States Patent 7,760,794
Huang , et al. July 20, 2010
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Method and apparatus for performing joint channel equalization
Abstract
A method and apparatus for performing joint channel equalization (JCE) are disclosed. JCE is implemented to reject inter-cell and intra-cell interference in a receiver. The JCE only requires the channel responses of a desired signal and interferers with respect to different antennas. In order to implement JCE, a number of discrete Fourier transforms (DFTs) and an inverse discrete Fourier transform (IDFT) are performed and a number of independent linear systems are solved. With M antennas, the JCE is capable of completely rejecting M-1 interferers. Over-sampling with diversity may be used to increase observation dimensions to a certain extent so that a receiver with M antennas may be able to reject more than M-1 interferers.
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Inventors: Huang; Yuejin (Holbrook, NY), Yang; Rui (Greenlawn, NY)
Assignee: InterDigital Technology Corporation (Wilmington, DE)
Appl. No.: 11/734,101
Filed: April 11, 2007
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Related U.S. Patent Documents
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Application Number Filing Date Patent Number Issue Date
60792239 Apr., 2006
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Current U.S. Class: 375/148 ; 375/347
Current International Class: H04B 1/00 (20060101); H04L 1/02 (20060101)
Field of Search: 375/130,140,143,144,147,148,152,232,233,234,235,236,260,267,316,340,343,346-350 708/100,200,300,322,323,400,403-405
