Patent ID: 11876838
Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 5:
6. A network operator device configured to provide a lawful interception, LI, service to a law enforcement agency, LEA, the device including:
an interface configured to acquire intercept related information, IRI, and contents of communication, CC, related to an LI target and a service session of the LI target; and
a data processing unit connected to the interface, the data processing unit configured
to determine or cause determining a chain identifier, chainID, based on a target type related to the LI target, a target identifier related to the LI target, a Lawful Interception Identifier uniquely associated with an intercept request, and a correlation number for the service session; and
to control the interface to transmit packets related to the service session to the LEA as a unique chain, each packet including a chain header and at least one of intercept related information, IRI, and contents of communication, CC,
wherein the chain header includes the chainID, a timestamp and a sequence number, which is a packet counter, and wherein the chain header of a first packet transmitted for the service session also includes the target type, the target identifier, the Lawful Interception Identifier, and the correlation number.