Telecommunications – Transmitter and receiver at separate stations – Plural transmitters or receivers
Patent
1996-08-22
1999-01-26
Vo, Nguyen
Telecommunications
Transmitter and receiver at separate stations
Plural transmitters or receivers
455518, 455 70, H04Q 728
Patent
active
058647627
ABSTRACT:
A digitally trunked radio repeater system provides substantial improvements in timeliness and reliability. The mobile radio transceivers transmit channel requests on the control channel at 9600 bps. The mobile transceiver switches to a working channel in response to an assignment message received on the control channel. Message and transmission trunking capabilities are both present so as to maximize working channel usage without compromising channel access for high priority communications. Radios select between message and transmission trunking based on over-the-air signaling. During transmission trunking, called and calling receivers return to the control channel after each transmission (and called transceivers may be inhibited from transmitting) but grant higher priority to calls from the other transceivers being communicated with to ensure continuity over an entire conversation.
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Childress Jeffrey S.
Cooper Gerald M.
Dissosway Marc A.
Hughes, III Houston H.
Ericsson Inc.
Kincaid Lester G.
Vo Nguyen
LandOfFree
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