Title: Method and system for implementing smart antennas and diversity techniques
Application Number: 03805521 Application Date: 2003.03.04
Publication Number: 1639988 Publication Date: 2005.07.13
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H04B1/02;H04B7/02;H04B7/185;H03C7/02
Applicant(s) Name: Interdigital Tech Corp. Address:
Inventor(s) Name: Kazakevich Leonid;Klahn Gerard;Ozluturk Fatih
Attorney & Agent: chen liang
Abstract:
    Method and apparatus for transfer of signals from multiple antennas down to baseband over a common radio frequency (RF) chain. Antenna selection having greater flexibility and applicability to both uplink and downlink is obtained by giving priority to the antenna receiving a better/best quality signal. Measurements are taken by at least a channel estimator during each time slot to determine the weighting to be given to the antenna with the better/best quality signal. Techniques and apparatus are provided to take measurements over a range of intervals from time slots to single symbols, for example, to select the best signal. The techniques described herein may be used individually, and in some cases are combined to receive additional benefits in efficiency.
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