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Radio system

  • US 5,678,192 A
  • Filed: 05/25/1995
  • Issued: 10/14/1997
  • Est. Priority Date: 11/27/1992
  • Status: Expired due to Term
First Claim
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1. A radio system, comprising:

  • a radio network having a plurality of base stations;

    a plurality of mobile radio stations each having a user interface allowing a user to select between a normal operating mode and an alternative operating mode for the respective mobile radio station;

    each said mobile radio station in said normal operating mode thereof, in case of no ongoing call, being arranged to continuously monitor a control channel of a one of said base stations to which said mobile radio station is currently registered, said one base station thereby then being a serving base station for said mobile radio station;

    each said mobile radio station being responsive to selection of said alternative operating mode by the user, for stopping monitoring of said control channel of said serving base station for absence periods decided by said mobile radio station and for monitoring said control channel between said absence periods, and for informing said radio network of beginning and duration of each said absence period by means of an absence message prior to each absence period;

    said radio network being responsive to receiving each said absence message for ceasing sending of messages to said mobile radio station on said control channel of said serving base station during each absence period indicated by each absence message.

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