发明名称 |
Method for automatic transceiver selection in a mobile multiple RF transceiver apparatus |
摘要 |
A multi-radio equipment arrangement comprises multiple transceivers of different band splits. A preferred arrangement utilizes at least one transceiver for communicating on digital "trunked" RF communications system and at least one transceiver for communicating on a wide-area "conventional" RF communications system. The multi-radio equipment transceivers communicate with each other and with an equipment control unit via a common internal serial data bus to form a multi-radio local network. Each transceiver incorporates a microprocessor controller that includes appropriate task management and serial bus interface software routines for operating and communicating with other devices on the bus. The control unit provides a user interface comprising conventional radio equipment front-panel controls. A "trunked" system transceiver is automatically selected whenever its measured audio quality exceeds a predetermined user-programmable minimum level. When audio quality falls below the predetermined level, an auto-select control task (ASCT) automatically switches to the "conventional" RF transceiver in a manner transparent to the user. Evaluations of the audio quality on each transceiver are assessed on a continuing periodic basic individually by each transceiver and provided to the ASCT. In addition, a radio-roaming feature automatically switches back and forth between two or more "trunked" communications transceivers depending on audio quality available from each trunked system and a preference selected by the mobile user.
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申请公布号 |
US6006106(A) |
申请公布日期 |
1999.12.21 |
申请号 |
US19970813494 |
申请日期 |
1997.03.07 |
申请人 |
ERICSSON INC. |
发明人 |
COOK, DAVID P.;SCHAUFERT, ERIC;SCHMIDT, ROBERT E. |
分类号 |
H04B1/00;H04W16/16;H04W48/18;H04W84/08;H04W88/06;(IPC1-7):H04B1/38 |
主分类号 |
H04B1/00 |
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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