My 5G lawful interception notes - Revision history

Paul: /* 5G target identifier info */

2025-01-18T23:53:00Z

5G target identifier info

← Older revision		Revision as of 18:53, 18 January 2025
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	\|}		\|}

			=== Target identifier grid for each network or service function ===

	Lawful interception (LI) at each network or service function and applicable target identifiers based on Release 16.6.0 (2020-12)		Lawful interception (LI) at each network or service function and applicable target identifiers based on Release 16.6.0 (2020-12)

Paul: updated URL for 23.003

2022-09-14T20:41:23Z

updated URL for 23.003

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	5G identifiers in general		5G identifiers in general

	See [https://~~www~~.3gpp.org/~~DynaReport~~/~~23003~~.~~htm~~ 3GPP 23.003] document that defines the principal purpose and use of different naming, numbering, addressing and identification resources (i.e. Identifiers (ID)) within the digital cellular telecommunications system and the 3GPP system.		See [https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=729 3GPP 23.003] document that defines the principal purpose and use of different naming, numbering, addressing and identification resources (i.e. Identifiers (ID)) within the digital cellular telecommunications system and the 3GPP system.

	{\| class="wikitable sortable"		{\| class="wikitable sortable"

Paul: /* 5G LI specifications */

2022-09-14T18:19:12Z

5G LI specifications

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	\|\| Example		\|\| Example
	\|-		\|-
	\| 33.127 \|\| ~~Example~~ \|\| Example		\| [https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=3182 33.127] \|\| This document specifies both the architectural and functional system requirements for Lawful Interception (LI) in 3GPP networks. The present document provides an LI architecture supporting both network layer based and service layer based Interception. National regulations determine the specific set of LI functional capabilities that are applicable to a specific 3GPP operator deployment.
			\|\| Example
	\|-		\|-
	\| ~~Example~~ \|\| ~~Example~~ \|\| Example		\| [https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=3183 33.128] \|\| This document specifies the protocols and procedures required to perform Lawful Interception within a 3GPP network. The present document addresses both internal interfaces used internally with a 3GPP network and external handover interfaces used to handover intercepted communications to law enforcement. \|\| Example
	\|}		\|}

Paul: /* Identity functions */

2022-08-30T20:00:00Z

Identity functions

← Older revision		Revision as of 15:00, 30 August 2022
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	== Identity functions ==		== Identity functions ==

	ICF Identifier Caching Function		* ICF Identifier Caching Function
	IEF Identifier Event Function		* IEF Identifier Event Function
	IQF Identifier Query Function		* IQF Identifier Query Function

	For dedicated query, lookup and reporting, figure 5.7-1 shows the high-level architecture used to support identifier association query and response requirements. The Identifier Event Function (IEF) provides the Identifier Caching Function (ICF) with the events necessary to answer the identifier association queries from the IQF. LEAs are able to issue real-time queries to the Identifier Query Function (IQF), which in turn queries the ICF.		For dedicated query, lookup and reporting, figure 5.7-1 shows the high-level architecture used to support identifier association query and response requirements. The Identifier Event Function (IEF) provides the Identifier Caching Function (ICF) with the events necessary to answer the identifier association queries from the IQF. LEAs are able to issue real-time queries to the Identifier Query Function (IQF), which in turn queries the ICF.

Paul: /* Identity functions */

2022-08-30T19:42:25Z

Identity functions

← Older revision		Revision as of 14:42, 30 August 2022
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	</pre>		</pre>

			=== References ===

			* 33 127 § 7.3.4
			* 33 128 § 7.3.2

	== Identity functions ==		== Identity functions ==

Paul: /* References */

2022-08-30T19:42:06Z

References

← Older revision		Revision as of 14:42, 30 August 2022
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	For dedicated query, lookup and reporting, figure 5.7-1 shows the high-level architecture used to support identifier association query and response requirements. The Identifier Event Function (IEF) provides the Identifier Caching Function (ICF) with the events necessary to answer the identifier association queries from the IQF. LEAs are able to issue real-time queries to the Identifier Query Function (IQF), which in turn queries the ICF.		For dedicated query, lookup and reporting, figure 5.7-1 shows the high-level architecture used to support identifier association query and response requirements. The Identifier Event Function (IEF) provides the Identifier Caching Function (ICF) with the events necessary to answer the identifier association queries from the IQF. LEAs are able to issue real-time queries to the Identifier Query Function (IQF), which in turn queries the ICF.

	~~=== References ===~~

	* 33 127 § 7.3.4
	* 33 128 § 7.3.2

	== 33.128 V16.6.0 § 5.2.7 Usage for realising LI_XEM1 ==		== 33.128 V16.6.0 § 5.2.7 Usage for realising LI_XEM1 ==

Paul: /* 33.128 V16.6.0 § 5.2.7 */

2022-08-30T19:41:44Z

33.128 V16.6.0 § 5.2.7

← Older revision		Revision as of 14:41, 30 August 2022
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	For dedicated query, lookup and reporting, figure 5.7-1 shows the high-level architecture used to support identifier association query and response requirements. The Identifier Event Function (IEF) provides the Identifier Caching Function (ICF) with the events necessary to answer the identifier association queries from the IQF. LEAs are able to issue real-time queries to the Identifier Query Function (IQF), which in turn queries the ICF.		For dedicated query, lookup and reporting, figure 5.7-1 shows the high-level architecture used to support identifier association query and response requirements. The Identifier Event Function (IEF) provides the Identifier Caching Function (ICF) with the events necessary to answer the identifier association queries from the IQF. LEAs are able to issue real-time queries to the Identifier Query Function (IQF), which in turn queries the ICF.

	== 33.128 V16.6.0 § 5.2.7 ==		=== References ===

			* 33 127 § 7.3.4
			* 33 128 § 7.3.2

			== 33.128 V16.6.0 § 5.2.7 Usage for realising LI_XEM1 ==

	For the purposes of realizing LI_XEM1 between the LIPF and an IEF, the LIPF plays the role of the ADMF as defined in ETSI TS 103 221-1 reference model (clause 4.2), and the IEF plays the role of the NE.		For the purposes of realizing LI_XEM1 between the LIPF and an IEF, the LIPF plays the role of the ADMF as defined in ETSI TS 103 221-1 reference model (clause 4.2), and the IEF plays the role of the NE.
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	* The IEF may be reconfigured to send identity associations to a different ICF using a ModifyTask message to modify the delivery destinations.		* The IEF may be reconfigured to send identity associations to a different ICF using a ModifyTask message to modify the delivery destinations.
	* The IEF shall be disabled by sending the following DeactivateTask message from the LIPF.		* The IEF shall be disabled by sending the following DeactivateTask message from the LIPF.

	~~=== References ===~~

	* 33 127 § 7.3.4
	* 33 128 § 7.3.2

	== Resources ==		== Resources ==

Paul: /* Identity functions */

2022-08-30T19:41:11Z

Identity functions

← Older revision		Revision as of 14:41, 30 August 2022
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	For dedicated query, lookup and reporting, figure 5.7-1 shows the high-level architecture used to support identifier association query and response requirements. The Identifier Event Function (IEF) provides the Identifier Caching Function (ICF) with the events necessary to answer the identifier association queries from the IQF. LEAs are able to issue real-time queries to the Identifier Query Function (IQF), which in turn queries the ICF.		For dedicated query, lookup and reporting, figure 5.7-1 shows the high-level architecture used to support identifier association query and response requirements. The Identifier Event Function (IEF) provides the Identifier Caching Function (ICF) with the events necessary to answer the identifier association queries from the IQF. LEAs are able to issue real-time queries to the Identifier Query Function (IQF), which in turn queries the ICF.

	33.128 V16.6.0 § 5.2.7 For the purposes of realizing LI_XEM1 between the LIPF and an IEF, the LIPF plays the role of the ADMF as defined in ETSI TS 103 221-1 reference model (clause 4.2), and the IEF plays the role of the NE.		== 33.128 V16.6.0 § 5.2.7 ==

			For the purposes of realizing LI_XEM1 between the LIPF and an IEF, the LIPF plays the role of the ADMF as defined in ETSI TS 103 221-1 reference model (clause 4.2), and the IEF plays the role of the NE.

	* The IEF shall be enabled by sending the following ActivateTask message from the LIPF.		* The IEF shall be enabled by sending the following ActivateTask message from the LIPF.

Paul: /* References */

2022-08-30T19:40:52Z

References

← Older revision		Revision as of 14:40, 30 August 2022
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	</pre>		</pre>

			== Identity functions ==

			ICF Identifier Caching Function
			IEF Identifier Event Function
			IQF Identifier Query Function

			For dedicated query, lookup and reporting, figure 5.7-1 shows the high-level architecture used to support identifier association query and response requirements. The Identifier Event Function (IEF) provides the Identifier Caching Function (ICF) with the events necessary to answer the identifier association queries from the IQF. LEAs are able to issue real-time queries to the Identifier Query Function (IQF), which in turn queries the ICF.

			33.128 V16.6.0 § 5.2.7 For the purposes of realizing LI_XEM1 between the LIPF and an IEF, the LIPF plays the role of the ADMF as defined in ETSI TS 103 221-1 reference model (clause 4.2), and the IEF plays the role of the NE.

			* The IEF shall be enabled by sending the following ActivateTask message from the LIPF.
			* The IEF may be reconfigured to send identity associations to a different ICF using a ModifyTask message to modify the delivery destinations.
			* The IEF shall be disabled by sending the following DeactivateTask message from the LIPF.

	=== References ===		=== References ===

Paul: /* 5G LI documents */

2022-08-30T19:13:11Z

5G LI documents

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	== 5G LI ~~documents~~ ==		== 5G LI specifications ==

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