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.
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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 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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