Method of target provisioning for lawful intercept in IP multi-media service networks
US8260258B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 13, 2008 |
| Grant date | Sep 4, 2012 |
| Priority date | — |
| Expiry date | Dec 25, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W12/80
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Provisioning of target related information into an IP Multi-media Subsystem (IMS) communications network, to provide lawful intercept, utilizes an interface between a lawful intercept server (LIS) and one or more of the Home Subscriber Servers (HSSs) of the network. The LIS provisions an HSS with target information for LI, with respect to a subset of the overall list of LI targets, that is to say with respect to those of targets homed on the respective HSS. The HSS provisions the target list for its subset down to Call Session Control Function elements (CSCFs) logically attached to that HSS, to enable each CSCF to intercept signaling messages relating to communication for identified target user equipment (UE) devices. The intercepted signaling enables the LIS to identify a location of a target UE device in an access network and instruct a network control point to intercept content of communications for that UE device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.