Telecommunications – Transmitter and receiver at separate stations
Patent
1992-02-06
1996-06-04
Urban, Edward F.
Telecommunications
Transmitter and receiver at separate stations
455 341, 4551662, H04Q 720
Patent
active
055242782
ABSTRACT:
A method and apparatus is provided for facilitating scanning of radio control channels where a plurality of communication systems conjunctively cover the same area. A subscriber unit receives an overhead message train on a control channel which includes a channel count representing the number of control channels of a communication system. Subsequently, the subscriber unit scans a channel count number of control channels to tune to a control channel being used by a communication system having coverage for the subscriber unit. This scanning of control channels starts with a predetermined 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 is operating within a coverage area.
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Electronic Industries Association (EIA) Standard EIA-553, Engineering Department of the Electronic Industries Association, 2001 Pennsylvania Street, N.W., Washington, D.C., 20006.
D'Avello Robert F.
Krolopp Robert K.
Williams James M.
Buford Kevin A.
Motorola Inc.
Toler Jeffrey G.
Urban Edward F.
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