Telecommunications – Radiotelephone system – Security or fraud prevention
Reexamination Certificate
2006-05-30
2006-05-30
Tran, Congvan (Department: 2688)
Telecommunications
Radiotelephone system
Security or fraud prevention
C455S410000, C455S456200
Reexamination Certificate
active
07054615
ABSTRACT:
A system and method in a mobile communication network for providing enhanced user privacy when responding to a location request from a client requesting location information for a mobile terminal. The system includes a mobile location node, a service node serving the mobile terminal, and a home location register/home subscriber server (HLR/HSS) associated with the mobile terminal. A list of approved codewords and a list of approved service types are stored in the HLR/HSS, and only location requests that include approved codewords or service types from these lists are accepted by the system. The mobile location node may also store a list of approved service identities, and may reject location requests that do not include a service identity matching one of the approved service identities. A mapping function in the mobile location node maps service identities to service types and sends them to the HLR/HSS or to the service node for comparison with approved service types.
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ETSI TS 123 271 V4.4.0 (Dec. 2000) Technical Specification; Digital Cellular Telecommunications Systems (Phase 2+)(GSM); Universal Mobile Telecommunications System (UMTS); Functional Stage 2 Description of Location Services (3GPP TS 23.271 Version 4.4.0 Release 4).
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Evensen Thommy
Maurizio Iovieno
Telefonaktiebolaget LM Ericsson (publ)
Tran Congvan
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