Tuesday, November 16, 2010 9:41:32 AM
Zeira November 16, 2010
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Mitigation of wireless transmit/receive unit (WTRU) to WTRU interference using multiple antennas or beams
Abstract
Multiple antenna elements of a WTRU are used to form an adaptive antenna beam pattern for receiving signals in the downlink direction. The WTRU utilizes the formed antenna beam to form a transmission antenna beam for transmitting signals in the uplink direction. In an alternate embodiment, the multiple antenna elements are used to form a plurality of fixed, predetermined antenna beams. The WTRU then selects and switches to the one of the predetermined beams that yields the best downlink reception signals. The WTRU utilizes the selected beam pattern to transmit signals in the uplink direction. In an alternate embodiment, the WTRU receives spectral arrangement information and utilizing this information to avoid transmitting in the direction of spectrally adjacent WRTUs.
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Inventors: Zeira; Eldad (Huntington, NY)
Assignee: InterDigital Technology Corporation (Wilmington, DE)
Appl. No.: 12/632,420
Filed: December 7, 2009
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Related U.S. Patent Documents
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Application Number Filing Date Patent Number Issue Date
11025252 Dec., 2004 7630688
60557967 Mar., 2004
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Current U.S. Class: 455/63.1 ; 370/328; 370/332; 455/278.1
Current International Class: H04B 1/00 (20060101)
Field of Search: 455/562.1,63.1,114.1,278.1,296,67.13,135,161.3,277.2,13.3,25,63.4,82,575.7 370/310,328,330,332
Gamco
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