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1. (WO2018001537) FORWARDING IMS-RELATED INFORMATION FOR LAWFUL INTERCEPTION FOR MOBILITY IN S8HR

Pub. No.:    WO/2018/001537    International Application No.:    PCT/EP2016/075750
Publication Date: Fri Jan 05 00:59:59 CET 2018 International Filing Date: Thu Oct 27 01:59:59 CEST 2016
IPC: H04W 12/02
H04L 29/06
H04W 36/00
H04W 36/12
H04W 36/14
Applicants: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Inventors: GUSTAFSSON, Roland
IOVIENO, Maurizio
KELLER, Ralf
DANNEBRO, Patrik
Title: FORWARDING IMS-RELATED INFORMATION FOR LAWFUL INTERCEPTION FOR MOBILITY IN S8HR
Abstract:
This invention is related to S8 Home Routing (S8HR), under specification by the Global System for Mobile Communications (GSM) Association (GSMA) and 3rd Generation Partnership Project (3GPP). In a first aspect of the invention, a method is provided for enabling Lawful Interception (LI) when a wireless communication terminal (20) performs S8HR roaming. The method comprises receiving (S101), at a first LMISF (26) from a first SGW (22) serving the wireless communication terminal (20), IMS-related information of the wireless communication terminal (20) required for performing LI, and providing, from the first LMISF (26) upon the wireless communication terminal (20) relocating to a second SGW (34) serving the wireless communication terminal (20), the received IMS-related information of the wireless communication terminal (20) required for performing LI, to a second LMISF (38) associated with the second SGW (34).