Mobile telephone channel exchange system

Details Mobile telephone channel exchange system Mobile telephone channel exchange system

1979-08-22

1981-12-29

Konick, Bernard

Telecommunications

Receiver or analog modulated signal frequency converter

Signal selection based on frequency

455 33, 455 56, H04Q 704

Patent

active

043084290

ABSTRACT:
A mobile telephone communication system is provided with a plurality of mobile units having a transmitter-receiver capable of being tuned to a plurality of radio channels. A plurality of base stations are provided with receivers capable of detecting carrier level drop-off and a control station is operable to command the given base station to transmit an instruction to the mobile unit commanding it to transmit its signal over a channel which is common to all of the base stations. The control station is then operable to detect an increased carrier level in a zone corresponding to a second base station, and to instruct each of the base stations to transmit a signal over the common channel commanding the mobile unit to switch channels to an idle channel corresponding to a second base station.

REFERENCES:
patent: 4144412 (1979-03-01), Ito et al.

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