VERTICAL ADAPTIVE ANTENNA ARRAY FOR A DISCRETE MULTITONE SPREAD SPECTRUM COMMUNICATIONS SYSTEM
摘要
Two or more antenna elements are arranged in the vertical direction to give vertical spatial adaptivity to a wireless discrete multitone spread spectrum communications system. The system is based on a combination of Discrete Multitone Spread Spectrum (DMT-SS) and multi-element adaptive antenna array technologies. This enables the automatic positioning of a beam in the vertical direction to position nulls where interferers are located on the same azimuth but are separated in elevation.
申请公布号
WO9837654(A3)
申请公布日期
1999.06.17
申请号
WO1998US03675
申请日期
1998.02.24
申请人
AT & T WIRELESS SERVICES, INC.
发明人
ALAMOUTI, SIAVASH;BECKER, JOEL, E.;STOLARZ, DOUGLAS, FRANK