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RADIO SUBSCRIBER DENSITY CONTROL IN SIMULCAST COMMUNICATIONS SYSTEMS

IP.com Disclosure Number: IPCOM000008799D
Original Publication Date: 1998-Sep-01
Included in the Prior Art Database: 2002-Jul-15

Publishing Venue

Motorola

Related People

Authors:
Herbert Richard Wolf

Abstract

Simulcast communication systems enlarge their coverage area by simultaneously transmitting the same signal from multiple transmitters. These trans- mitters are physically located such that each trans- mitting coverage area slightly overlaps the next transmitting coverage area. To ensure receiving radio units within the overlap areas to receive a cor- rect RF signal, the transmitted RF signal from each transmitter has to be perfectly aligned with each other. Many solutions are available to ensure align- ment, among them most commonly used the Global Positioning Satellite network to assist in the launch time of the transmitted RF signal. This will ensure a very low bit error rate that will allow the radio to accept the reception of the transmission.