3 Definitions, symbols and abbreviations

33.1283GPPProtocol and procedures for Lawful Interception (LI)Release 18SecurityStage 3TS

3.1 Definitions

For the purposes of the present document, the terms and definitions given in 3GPP TR 21.905 [1] and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in 3GPP TR 21.905 [1].

3.2 Symbols

For the purposes of the present document, the following symbols apply:

<symbol> <Explanation>

3.3 Abbreviations

For the purposes of the present document, the abbreviations given in 3GPP TR 21.905 [1] and the following apply. An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in 3GPP TR 21.905 [1].

ADMF LI Administration Function

CC Content of Communication

CSP Communication Service Provider

CUPS Control and User Plane Separation

DNAI Data Network Access Identifier

ICF Identity Caching Function

IEF Identity Event Function

IQF Identity Query Function

IRI Intercept Related Information

LAF Location Acquisition Function

LALS Lawful Access Location Services

LARF Location Acquisition Requesting Function

LEA Law Enforcement Agency

LEMF Law Enforcement Monitoring Facility

LI Lawful Interception

LICF Lawful Interception Control Function

LI_HI1 LI_Handover Interface 1

LI_HI2 LI_Handover Interface 2

LI_HI3 LI_Handover Interface 3

LI_HI4 LI_Handover Interface 4

LI_HILA Lawful Interception Handover Interface Location Acquisition

LI_HIQR Lawful Interception Handover Interface Query Response

LIPF Lawful Interception Provisioning Function

LIR Location Immediate Request

LI_SI Lawful Interception System Information Interface

LISSF Lawful Interception State Storage Function

LI_ST Lawful Interception State Transfer Interface

LI_X1 Lawful Interception Internal Interface 1

LI_X2 Lawful Interception Internal Interface 2

LI_X2_LA Lawful Interception Internal Interface 2 Location Acquisition

LI_X3 Lawful Interception Internal Interface 3

LI_XEM1 Lawful Interception Internal Interface Event Management Interface 1

LI_XER Lawful Interception Internal Interface Event Record

LI_XLA Lawful Interception Internal Interface Location Acquisition

LI_XQR Lawful Interception Internal Interface Query Response

LTF Location Triggering Function

MDF Mediation and Delivery Function

MDF2 Mediation and Delivery Function 2

MDF3 Mediation and Delivery Function 3

MM Multimedia Message

MMS Multimedia Message Service

NAT Network Address Translation

NPLI Network Provided Location Information

O&M Operations and Management

POI Point Of Interception

RCS Rich Communication Suite

SDP Session Description Protocol

SIP Session Initiation Protocol

SIRF System Information Retrieval Function

SOI Start Of Interception

TF Triggering Function

TNGF Trusted Non-3GPP Gateway Function

TWIF Trusted WLAN Interworking Function

xCC LI_X3 Communications Content.

xIRI LI_X2 Intercept Related Information