The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 11, 2019
Filed:
Aug. 27, 2015
Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL), Stockholm, SE;
Abstract
The following disclosure relates a method and mediation device () in a Lawful Interception (LI) system for detecting and correlating copies of SIP and RTP flows, from different domains EPS or IMS, said method comprising to determine a unique IMS Communication Identity Number, IMS CIN, and a corresponding correlation set of identifiers, storing each unique IMS CIN together with its correlation set for an intercepted communication session, correlating a SIP or RTP flow received from one domain to the same SIP or RTP flows of the same communication session received from the other domain by comparing the flow identity information of the received flow to the stored correlation sets for identifying a matching correlation set and its unique IMS CIN and sending to a LEA requesting for LI of the target said received SIP or RTP flow comprising said identified unique IMS CIN for a matching correlation set.