Deterministic multi-access method for a decentralized mobile radio system
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United States of America Patent
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-
Aug 6, 1985
Grant Date -
N/A
app pub date -
Sep 6, 1983
filing date -
Sep 6, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A mobile radio system uses a predetermined number of control channels over which a hand-shake routine is performed to determine called station availability, before one of a limited number of talk channels (local and repeater) is assigned for communication between a calling and the called station. After locating an idle talk channel (local channels are searched first), the control channel to which the called station is predeterminedly assigned is attempted to be accessed. Transmission times on the control channel are a function of the called station's identification code, thus creating a logical ring. Provision is made for message based priorities, emergency numbers and high priority for stations having experienced a previous unsuccessful attempt to access a control channel.
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