Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2006-06-20
2006-06-20
Feild, Joseph (Department: 2681)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S433000, C455S411000, C455S445000, C455S414200, C455S415000, C455S403000, C455S412100, C455S435100, C455S436000, C455S437000, C455S439000, C455S443000, C380S248000
Reexamination Certificate
active
07065356
ABSTRACT:
Systems and methods for preventing unauthorized use of roaming numbers in a wireless telecommunications system. Upon receipt of a call request for a mobile terminal at a Gateway Mobile Switching Center (GMSC), the GMSC queries a Home Location Register (HLR). The HLR requests a roaming number for the mobile terminal from a Mobile Switching Center (MSC). The MSC allocates a roaming number for the mobile terminal, assigns an authentication code, and sends to the HLR. The HLR receives the roaming number and authentication code and relays to the GMSC. The GMSC sends a call setup request to the MSC; the call setup request includes the roaming number and the authentication code. The MSC confirms the authentication code and, if the authentication code for the roaming number is confirmed, completes the call request to the mobile terminal.
REFERENCES:
patent: 5400390 (1995-03-01), Salin
patent: 5930701 (1999-07-01), Skog
patent: 5940512 (1999-08-01), Tomoike
patent: 6101382 (2000-08-01), Granberg
patent: 6157832 (2000-12-01), Lahtinen
patent: 6285871 (2001-09-01), Daniels
patent: 6640108 (2003-10-01), Lu et al.
patent: 6725037 (2004-04-01), Grootwassink
patent: 6745023 (2004-06-01), Offer
patent: 2002/0072367 (2002-06-01), Osafune et al.
patent: 2002/0197991 (2002-12-01), Anvekar et al.
patent: 410013945 (1998-01-01), None
Mouly et al., The GSM System for Mobile Communications, 1992, Chapter 7.2 “Security Management,” pp. 477-492.
Corby Victor
Lin Janette
Burleigh Roger
Feild Joseph
Nguyen David Q.
Telefonaktiebolaget LM Ericsson (publ)
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