发明名称 Method for accessing a trunked communication system
摘要 A communication system (100) is provided comprising a communication resource controller (110) which synchronously communicates with a communication unit (120). Communication range of the system is extended by adjusting transmission timing of a channel access request based on position information received from a global positioning system.
申请公布号 US5225843(A) 申请公布日期 1993.07.06
申请号 US19920937777 申请日期 1992.09.01
申请人 MOTOROLA, INC. 发明人 THOMPSON, MICHAEL J.
分类号 G01S5/14;G01S19/06;G01S19/25;H04J3/06;H04W84/08 主分类号 G01S5/14
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