Telecommunications – Radiotelephone system – Special service
Reexamination Certificate
2007-06-07
2010-12-28
Corsaro, Nick (Department: 2617)
Telecommunications
Radiotelephone system
Special service
C455S411000, C455S412100, C455S422100, C455S403000, C455S445000, C709S223000, C709S218000
Reexamination Certificate
active
07860488
ABSTRACT:
An application (1, 10, 20) in a mobile network, receives an EIR trigger (MAP CHECK_IMEI). The application generates a signature derived from a device identifier (IMEI) and a subscriber identifier (e.g. IMSI), the signature not having a semantic meaning as it is pseudo-randomly generated. The application (1, 10, 20) checks if the signature exists in a signature store (2, 11, 21); and if not, determines that the device/subscriber combination has not been detected in the network within a certain preceding time window, and stores the signature in the store, with an associated timestamp. It also transmits a notification to an external system such as a device management system. If the signature is already in the database, the application determines that the device/subscriber combination already exists in the network and updates a time stamp associated with the signature in the store to indicate the last time the signature was processed.
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Arthur Fuller, “Intelligent Database Design Using Hash Keys” Feb. 17, 2006, pp. 1-2, XP002452853.
Wijbrans Klaas
Wollersheim Maurice
Corsaro Nick
Jacobson & Holman PLLC
Markport Limited
Vu Michael T
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