×

Authentication method for radio communication system, radio communication system, radio communication terminal and communication managing apparatus

  • US 6,091,945 A
  • Filed: 03/26/1997
  • Issued: 07/18/2000
  • Est. Priority Date: 03/29/1996
  • Status: Expired due to Fees
First Claim
Patent Images

1. An authentication method for a radio communication system including a plurality of base stations, a plurality of radio communication terminals, wherein each of said plurality of radio communication terminals is capable of communicating with each of said plurality of base stations, and a telephone network having a plurality of exchangers connected to said plurality of base stations and a communication managing apparatus for controlling said plurality of exchangers connected to said plurality of base stations, comprising the steps of:

  • storing identification data in each of said plurality of radio communication terminals, wherein said identification data is different for each of said plurality of radio communication terminals;

    storing said identification data for each of said plurality of radio communication terminals permitted to access said radio communication system in said communication managing apparatus;

    determining whether the identification data stored in one of said plurality of radio communication terminals requesting a connection to said telephone network through one of said plurality of base stations coincides with any of said identification data of said plurality of radio communication terminals which are permitted to access said radio communication system stored in said communication managing apparatus;

    connecting one of said plurality of radio communication terminals to said telephone network upon confirming that the identification data stored in one of said plurality of radio communication terminals and said identification data stored in said communication managing apparatus coincide with each other; and

    updating the identification data of one of said plurality of radio communication terminals stored in one of said plurality of radio communication terminals and updating said identification data of said communication managing apparatus with new identification data before every connection made between one of said plurality of radio communication terminals and said telephone network, wherein said new identification data is data output from a counter.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×