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Murto; Juhani
Coppel, TX
No. of patents:

Patent Number Title Of Patent Date Issued
5991407 Subscriber authentication in a mobile communications system November 23, 1999
An authentication procedure in a Global System for Mobile Communications (GSM)-based mobile communications system relies on a challenge and response principle. A 32-bit Signed Response (SRES) parameter is calculated by an A3 algorithm from a 128-bit random number (RAND) and a 128-bit
5629974 Communication system providing mobility management internetworking between a C-interface radio s May 13, 1997
A communication system providing mobility management interworking between a C-interface radio system and an overlay mobile radio network. In the first embodiment the radio system uses NCAS signalling and communicates with the SCP using the MMAP protocol. The SCP then makes the conversion

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