发明名称 Method and apparatus for trunked radio repeater communications with backwards compatibility
摘要 A trunked radio repeater communication system capable of use in a networked system includes a plurality of distributive switches and a unique signaling protocol and a switching protocol for interconnecting the trunked transmission communications systems into a wide area network that provides an expanded feature set of radio communications capabilities. The trunked radio repeater system including a protocol supporting communications for repeaters and/or subscribers conducting communications using existing protocols, such as the Logic Trunked Radio (LTR) protocol and supporting additional special functions.
申请公布号 US6374115(B1) 申请公布日期 2002.04.16
申请号 US19980058678 申请日期 1998.04.10
申请人 TRANSCRYPT INTERNATIONAL/E.F. JOHNSON 发明人 BARNES KEITH W.;SMITH RORY A.;GRINDAHL MERVIN L.
分类号 H04W28/04;H04W56/00;H04W80/00;H04W84/08;H04W88/04;H04W88/18;H04W92/02;(IPC1-7):H04Q7/20 主分类号 H04W28/04
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