Content for TR 33.928 Word version: 18.4.0
0 Introduction p. 5
The LI technical specifications (TS 33.126, TS 33.127, TS 33.128) contain the normative part of the LI requirements and the technical report TR 33.929 [5] contains additional information as an implementation guidance for LI. The ADMF that receives the warrant information from the Law Enforcement Agencies has the task of provisioning the LI functions present in various Network Functions (NFs) of the serving CSP network. Upon provisioning, the LI is activated in those NFs, and accordingly, the LI functions within those NFs monitor the target's communications and provide the LI as required by the warrant.
The scope of the NFs that provide the LI functions within the CSP network is determined based on various factors such as LI service type, CSP deployment choice, scope of LI as authorized in the warrant. The present document provides the logic used within the ADMF in provisioning the LI functions considering those points.
1 Scope p. 6
The present document provides ADMF provisioning logic for LI in association with the LI functions defined in TS 33.126, TS 33.127 and TS 33.128.
2 References p. 6
The following documents contain provisions which, through reference in this text, constitute provisions of the present document.
- References are either specific (identified by date of publication, edition number, version number, etc.) or non-specific.
- For a specific reference, subsequent revisions do not apply.
- For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same Release as the present document.
[1]
TR 21.905: "Vocabulary for 3GPP Specifications".
[2]
TS 33.126: "Lawful Interception Requirements".
[3]
TS 33.127: "Lawful Interception (LI) Architecture and Functions".
[4]
TS 33.128: "Lawful Interception (LI) Protocol and Procedures".
[5]
[6]
ETSI TS 103 221-1: "Lawful Interception (LI); Internal Network Interfaces; Part 1: X1".
3 Definitions of terms, symbols and abbreviations p. 6
3.1 Terms p. 6
For the purposes of the present document, the terms given in TR 21.905 and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in TR 21.905.
3.2 Symbols p. 6
For the purposes of the present document, the following symbols apply:
None.
3.3 Abbreviations p. 6
