H - Electricity – 04 – L
Patent
H - Electricity
04
L
H04L 12/26 (2006.01) H04M 3/22 (2006.01) H04Q 7/38 (2006.01)
Patent
CA 2491816
The present invention proposes a method for informing a lawful interception system of the serving system serving an intercepted target (MS) roaming within a communication network system, the communication network system comprising at least one serving system each serving system comprising at least one serving system node (SGSN) serving the intercepted target for communication, the method comprising the steps of: first detecting a serving system node change request (1.) from the intercepted target (MS) towards a new serving system node which is currently not serving the target, first processing said serving system node change request at said new serving system node currently not serving the target, wherein said processing comprises the inclusion, to the request, of a serving system address of the new serving system node currently not serving the target, and first forwarding said processed request (2.) to an old serving system node currently serving the target. Also, the present invention proposes a serving system node adapted to be used in such a method.
La présente invention porte sur un procédé visant à informer un système d'interception licite du système serveur servant une cible interceptée accédant dans un système de réseau de communication. Le système de réseau de communication comprend au moins un système serveur, chaque système serveur comprenant au moins un noeud de système serveur (SGSN) servant la cible interceptée pour la communication. Le procédé consiste à détecter d'abord une demande de changement de noeud de système serveur (1.) de la cible interceptée (MS) vers un nouveau noeud de système serveur qui ne sert pas habituellement la cible, traiter la demande de changement du système serveur au niveau du nouveau noeud du système serveur ne servant pas habituellement la cible, ce traitemetn consistant à inclure, à la demande, une adresse de système serveur du nouveau noeud de système serveur ne servant pas habituellement la cible, et envoyer la demande traitée (2.) à un ancien noeud du système serveur servant habituellement la cible. L'invention porte également sur un noeud de système serveur adapté pour être utilisé dans ce procédé.
Gulbani Giorgi
Makinen Teemu
Sandas Ulf
Nokia Corporation
Sim & Mcburney
LandOfFree
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