发明名称 |
METHOD AND APPARATUS FOR DETERMINING A SERVING COMMUNICATION SYSTEM WHERE COMMUNICATION SYSTEMS OPERATE CONJUNCTIVELY |
摘要 |
A method and apparatus is provided for facilitating scanning of radio control channels where a plurality of communication systems (106, 114) conjunctively cover the same area. A subscriber unit (116) receives an overhead message train on a control channel which includes a channel count representing the number of control channels of a communication system (114). Subsequently, the subscriber unit (116) scans a channel count number of control channels to tune to a control channel being used by a communication system (114) having coverage for the subscriber unit (116). This scanning of control channels starts with a predermined start control channel which corresponds to the logical number of the control channel in a sequence of control channels which is after the channel count control channel. In addition, an apparatus may be provided to transmit, in the overhead message train, a subscriber unit control message with an address indicating that a communication system (114) is operating within a coverage area. |
申请公布号 |
WO9316563(A1) |
申请公布日期 |
1993.08.19 |
申请号 |
WO1992US10528 |
申请日期 |
1992.12.07 |
申请人 |
MOTOROLA, INC. |
发明人 |
WILLIAMS, JAMES, M.;D'AVELLO, ROBERT, F.;KROLOPP, ROBERT, K. |
分类号 |
H04W48/12;H04W48/16 |
主分类号 |
H04W48/12 |
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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