G.1 Delivery methods preferences

33.1083G Security3GPPHandover interface for Lawful Interception (LI)Release 17TS

Tools: ARFCN - Frequency Conversion for 5G NR/LTE/UMTS/GSM

Law enforcement agencies want reliable delivery of intercepted communications to the LEMF:

– U.S. Law enforcement prefers that the capability to deliver IRI to the LEMF be provided over the HI2 directly over TCP (at the transport layer) and the Internet Protocol (IP) (at the network layer).

– U.S. Law enforcement prefers that the capability to deliver content of communication to the LEMF be provided using the UMTS LI Correlation (ULIC) v1 Header over TCP/IP method for delivery.