US 12,328,343 B2
Managing lawful interception information
Francesco Attanasio, Roccapiemonte (IT); and Amedeo Imbimbo, Caivano (IT)
Assigned to TELEFONAKTIEBOLAGET LM ERICSSON (PUBL), Stockholm (SE)
Appl. No. 17/782,299
Filed by Telefonaktiebolaget LM Ericsson (PUBL), Stockholm (SE)
PCT Filed Dec. 16, 2019, PCT No. PCT/SE2019/051286
§ 371(c)(1), (2) Date Jun. 3, 2022,
PCT Pub. No. WO2021/126020, PCT Pub. Date Jun. 24, 2021.
Prior Publication US 2023/0007052 A1, Jan. 5, 2023
Int. Cl. H04L 9/40 (2022.01); H04M 3/22 (2006.01); H04M 3/42 (2006.01); H04W 12/02 (2009.01); H04W 12/80 (2021.01)
CPC H04L 63/306 (2013.01) [H04W 12/80 (2021.01)] 9 Claims
OG exemplary drawing
 
1. A method of managing lawful interception, LI, information in a telecommunication network, the method comprising:
receiving, by an LI administrative function, ADMF via an LI HI1 interface from a Law Enforcement Agency, LEA, an object configured to indicate that identity information of a non-target communicating entity is to be obfuscated in a report of LI of a target communicating entity to the LEA,
receiving, by a mediation and delivery function, MDF2, from the ADMF, TaskDetails, comprising a data field configured to indicate that the identity information of the non-target communicating entity is to be obfuscated based on the object,
based on the data field received from the ADMF, determining that the identify information of the non-target communicating entity, with which the target communicating entity is communicating, is to be obfuscated in the report of LI of the target communicating entity to the LEA,
performing LI of the target communicating entity, and
reporting information pertaining to the performed LI of the target communicating entity to the LEA, said reported information comprising non-obfuscated identity information of the target communicating entity and obfuscated identity information of the non-target communicating entity.