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Method and arrangement for controlling a mobile subscription in a module communication system

  • US 6,804,517 B1
  • Filed: 09/06/2000
  • Issued: 10/12/2004
  • Est. Priority Date: 09/09/1999
  • Status: Active Grant
First Claim
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1. A mobile communications system (1-4) comprising means for controlling the quantitative right of use of a subscription and means for authenticating the mobile subscription by means of authentication signaling (7) between a subscriber identity module of a mobile station and the mobile communication system while the mobile station is being connected to the mobile communication system, characterized in that the system also comprises means (16) for storing information representing the remaining amount of the right to use and means (3, 4, 32) for receiving from the mobile station information representing the remaining amount of the right of use in connection with said authentication signaling;

  • andfurther wherein the means for including information representing the spent and/or remaining amount of the right of use of a mobile subscription in said authentication message (SRES′

    ) comprises a memory (34) for storing a first algorithm, whereby said inclusion in the authentication message of the information is arranged so as to be carried out using the first algorithm.

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