Mobile radio with transmit command control and mobile radio syst

Details Mobile radio with transmit command control and mobile radio syst Mobile radio with transmit command control and mobile radio syst

1995-03-21

1997-03-18

Chin, Wellington

Multiplex communications

Channel assignment techniques

Only active channels transmitted

370528, 455 83, H04J 317

Patent

active

056129556

ABSTRACT:
A mobile radio for operation in a system includes a plurality of mobile radios, in which each mobile radio transmits, selectively, traffic frames containing traffic data responsive to inputting of information to the mobile radio when the mobile radio is in an active transmit state of operation, and silence descriptor frames responsive to absence of input information when the mobile radio is in active transmit state of operation. The mobile radio includes: a transmitter for transmitting traffic on a radio channel; a receiver for monitoring signals on the radio channel; a control input for inputting a transmit command; a controller, responsive to the receiver and responsive to the control input, for controlling the transmitter, where the controller is arranged to enable activation of the transmitter, when the receiver detects continuous silence descriptor frames on the radio channel for a predetermined duration and a transmit channel command is input at the control input.

REFERENCES:
patent: 4060764 (1977-11-01), Bethards et al.
patent: 4305154 (1981-12-01), Deman et al.
patent: 5418784 (1995-03-01), Ramakrishnan et al.
patent: 5524274 (1996-06-01), Takahashi et al.

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