United States Patent 7,689,235
Demir , et al. March 30, 2010
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Unsuitable cell exclusion in wireless communication systems
Abstract
A method for performing initial cell search in wireless communication system wherein unsuitable cells includes searching stored frequencies exhaustively and initial frequencies non-exhaustively. Initial frequencies may be searched exhaustively in certain circumstances. When performing exhaustive initial cell searches, primary synchronization codes that lead to unsuitable cells are excluded from subsequent initial cell searches performed on the same frequency.
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Inventors: Demir; Alpaslan (East Meadow, NY), Grieco; Donald M. (Manhassett, NY), Haim; John W. (Baldwin, NY), Bednarz; Andrew F. (Garden City, NY)
Assignee: InterDigital Technology Corporation (Wilmington, DE)
Appl. No.: 12/001,162
Filed: December 10, 2007
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Related U.S. Patent Documents
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Application Number Filing Date Patent Number Issue Date
10764087 Jan., 2004 7308258
60442087 Jan., 2003
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Current U.S. Class: 455/502 ; 455/434; 455/436; 455/437; 455/440; 455/550.1
Current International Class: H04B 7/00 (20060101)
Field of Search: 455/502,550.1,434,436,437,440,422.1,435.1
