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Method and apparatus for communication with a mobile unit

  • US 6,799,037 B1
  • Filed: 12/10/1997
  • Issued: 09/28/2004
  • Est. Priority Date: 12/12/1996
  • Status: Expired due to Term
First Claim
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1. A method for transferring data in a communication system, the communication system comprising a central station, a plurality of mobile units, and a plurality of radio base stations, wherein the central station communicates with each of the plurality of mobile units, the method comprising the steps of:

  • receiving from each mobile unit registration information identifying a radio base station currently in communication with the mobile unit;

    storing the registration information in a registration database located at the central station, such that the registration database stores information identifying the particular radio base station currently communicating with each of the plurality of mobile units;

    receiving a request to transfer data to a selected group of the plurality of mobile units; and

    transferring data from the central station to the selected group of mobile units using the radio base stations identified by the registration information stored in the registration database for each mobile unit in the selected group, wherein the data transferred to the selected group of mobile units includes application software invoked by at least one of the mobile units.

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