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专利名称：Interference reduction in shared-frequency
wireless communication systems
发明人：Hamilton W. Arnold,Scott Yates Seidel申请号：US08/5879申请日：19960119公开号：US05884181A公开日：19990316
摘要：An apparatus and method for reducing interference between an uplinktransmitter of a space-based wireless communication system and an uplink or downlinkreceiver of a terrestrial wireless communication system are described. The space-basedsystem may be a Fixed Satellite Service (FSS) system and the terrestrial system may be aLocal Multipoint Distribution Service (LMDS) system. An ordered list of preferred uplinktransmission frequencies is assigned to all FSS uplinks located in a particular cell of theLMDS system. Different ordered lists are used in different cells of the LMDS system,while uplinks located in the same cell can utilize the same ordered list. A given
potentially- interfering uplink transmitter selects an uplink transmission frequency fromthe appropriate ordered list if the uplink is unable to operate outside the LMDS
frequency band and there are no gaps in the LMDS spectrum which can accommodate theuplink transmission. The ordered list may be selected by the LMDS service provider suchthat the impact of interference from FSS uplinks can be readily predicted and minimized.The invention thus allows simultaneous access to a shared frequency band for both LMDSand FSS systems.
申请人：BELL COMMUNICATIONS RESEARCH, INC.
代理人：Joseph Giordano,David A. Hey,Loria B. Yeadon
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