Checking the identification number of a mobile subscriber
First Claim
1. A mobile equipment, said mobile equipment being a combination of a subscriber station and an individual subscriber identity module containing a protected subscriber identity, said individual subscriber identity module being removably attached to the subscriber station, whereby a mobile equipment may be composed by attaching the subscriber identity module to any subscriber station, the mobile equipment comprising:
- a user interface for requesting a personal identification number of a subscriber from the user of the mobile equipment,checking means for checking the validity of said personal identification number of the subscriber,a counter for counting the number of validity checks of the personal identification number of the subscriber,blocking means responsive to said counter for blocking the subscriber identity module when the number of said validity checks exceeds a predetermined number without the user of the mobile equipment having entered a valid personal identification number,releasing means responsive to said blocking means for releasing the protection of the protected subscriber identity in the subscriber identity module after the blocking of the subscriber identity module,means for requesting the released subscriber identity from the subscriber identity module,means for sending the released subscriber identity from the subscriber identity module to the subscriber station, andtransmission means for transmitting to the mobile communications system the released subscriber identity and an indication that the subscriber identity module has been blocked.
6 Assignments
0 Petitions
Accused Products
Abstract
The invention relates to method for checking a personal identification number (PIN) of a subscriber in a mobile equipment (500) employed in a mobile communications system (600), the mobile equipment containing a protected subscriber identity (IMSI, ITSI). The method comprises the steps of requesting (203) the user of the mobile equipment the personal identification number (PIN) of the subscriber, checking (103) the validity of the personal identification number entered by the user, repeating (109) these steps provided that the user does not enter the valid personal identification number, and, when the number of requests (203) and checks (103) of the identification number exceeds a predetermined threshold value, blocking (111) the mobile equipment. According to the invention, protection of a protected subscriber identity is released (112), thus finding out the identity of the subscriber; the subscriber identity as well as and an indication that the mobile equipment has been blocked are transmitted the mobile communications system.
60 Citations
10 Claims
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1. A mobile equipment, said mobile equipment being a combination of a subscriber station and an individual subscriber identity module containing a protected subscriber identity, said individual subscriber identity module being removably attached to the subscriber station, whereby a mobile equipment may be composed by attaching the subscriber identity module to any subscriber station, the mobile equipment comprising:
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a user interface for requesting a personal identification number of a subscriber from the user of the mobile equipment, checking means for checking the validity of said personal identification number of the subscriber, a counter for counting the number of validity checks of the personal identification number of the subscriber, blocking means responsive to said counter for blocking the subscriber identity module when the number of said validity checks exceeds a predetermined number without the user of the mobile equipment having entered a valid personal identification number, releasing means responsive to said blocking means for releasing the protection of the protected subscriber identity in the subscriber identity module after the blocking of the subscriber identity module, means for requesting the released subscriber identity from the subscriber identity module, means for sending the released subscriber identity from the subscriber identity module to the subscriber station, and transmission means for transmitting to the mobile communications system the released subscriber identity and an indication that the subscriber identity module has been blocked. - View Dependent Claims (2)
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3. A method for checking a personal identification number of a subscriber in a mobile equipment employed in a mobile communications system, said mobile equipment being a combination of a subscriber station and an individual subscriber identity module containing a protected subscriber identity, said individual subscriber identity module being removably attached to the subscriber station, whereby a mobile equipment may be composed by attaching the subscriber identity module to any subscriber station, the method comprising the steps of:
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requesting the user of the mobile equipment the personal identification number of the subscriber, checking from the subscriber identity module the validity of the personal identification number entered by the user, repeating these stops provided that the user does not enter the valid personal identification number, blocking the subscriber identity module when the number of requests and checks of the personal identification number exceeds a predetermined threshold value, releasing a protection of the protected subscriber identity in the subscriber identity module after said blocking of the subscriber identity module, requesting by the subscriber station the released subscriber identity from the subscriber identity module, p1 sending by the subscriber identity module to the subscriber station the released subscriber identity, transmitting to the mobile communications system said subscriber identity and an indication that the subscriber identity module has been blocked. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10)
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Specification