发明名称 LMDS SYSTEM HAVING CELL-SITE DIVERSITY AND ADAPTABILITY
摘要 The present invention relates to a millimeter-wave communication system for one-way and/or two-way video, voice and data services that leverages cell-site diversity, subscriber-unit adaptability and a reflection dominated propagation model. To this end, a variety of omni-directional and directional antenna plans, cell-site structures and adaptive reception/transmission plans are envisioned in the present invention. Cell-site diversity is employed and permits shadowed subscriber units to be serviced from the best choice of the surrounding cell-sites based upon millimeter-wave propagation efficiency and not geometric convenience. Cell-site diversity is used to mitigate the ill-effects of environmental and atmospheric factors. Finally, the present plan reduces the reliance on repeaters by using statistically optimal conditions for cell-site selection with reflection based models rather than line-of-sight models, as relied upon in the prior art.
申请公布号 WO9746040(A3) 申请公布日期 1998.02.26
申请号 WO1997US09478 申请日期 1997.06.02
申请人 THE WHITAKER CORPORATION 发明人 DI PIAZZA, GERALD, C.
分类号 H04B7/005;H04B7/02;H04B7/10;H04W16/02;H04W16/12;H04W16/24;H04W52/42 主分类号 H04B7/005
代理机构 代理人
主权项
地址