IMPROVED SIGNALLING METHOD FOR ESTABLISHING TRUNKED COMMUNICATION

IMPROVED SIGNALLING METHOD FOR ESTABLISHING TRUNKED COMMUNICATION

A trunked communication signalling method is provided by a unifying signalling protocol in which subscribers request communication channels using only their individual IDs encoded into a single ISWs. The central decodes the call request, extracts the requesting subscriber's individual ID, which...

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Hauptverfasser: KENNETH JOHN ZDUNEK, MICHAEL DAVID SASUTA
Format: Patent
Sprache:eng
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
WIRELESS COMMUNICATIONS NETWORKS
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creator KENNETH JOHN ZDUNEK
MICHAEL DAVID SASUTA
description A trunked communication signalling method is provided by a unifying signalling protocol in which subscribers request communication channels using only their individual IDs encoded into a single ISWs. The central decodes the call request, extracts the requesting subscriber's individual ID, which is cross referenced to determine the subscriber's talk-group affiliation(s). If the requesting subscriber's affiliation(s) are not known, the central commands the subscriber to transmit its affiliation using dual ISW signalling. In another aspect of the present invention, each subscriber automatically informs the central of a change in talk-group affiliation, thereby providing continual affiliation updates. In this way, many thousand subscribers are afforded access to a single trunked system, and control channel traffic congestion is minimized.
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subjects ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
WIRELESS COMMUNICATIONS NETWORKS
title IMPROVED SIGNALLING METHOD FOR ESTABLISHING TRUNKED COMMUNICATION
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