My 4G lawful interception notes - Revision history

Paul: added link to my TS 23.228 notes

2021-06-03T15:44:42Z

added link to my TS 23.228 notes

← Older revision		Revision as of 10:44, 3 June 2021
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	\| WWSF \|\| WebRTC Web Server Function \|\| 3GPP TS 33.107 V15.6.0 (2019-06)		\| WWSF \|\| WebRTC Web Server Function \|\| 3GPP TS 33.107 V15.6.0 (2019-06)
	\|}		\|}

			== Resources ==

			[[My 3GPP TS 23.228 Notes]]

	<center>[[My lawful interception notes]]</center>		<center>[[My lawful interception notes]]</center>

Paul: moved abbreviations to end of page

2021-06-03T15:40:48Z

moved abbreviations to end of page

@@ Line 7: / Line 7: @@
 === IRI ===
 '''The following events are applicable to the MME:'''
@@ Line 47: / Line 46: @@
 * Table 10.5.1.1.19: Register location REPORT Record
 * Table 10.5.1.1.20: Location information request REPORT Record
 == Abbreviations ==
@@ Line 313: / Line 348: @@
 |-
 | WWSF || WebRTC Web Server Function || 3GPP TS 33.107 V15.6.0 (2019-06)
 |}
 <center>[[My lawful interception notes]]</center>

Paul: added section for 33 107 abbreviations

2021-06-03T15:14:35Z

added section for 33 107 abbreviations

Show changes

Paul: /* EPS Multimedia */

2021-06-03T14:55:04Z

EPS Multimedia

← Older revision		Revision as of 09:55, 3 June 2021
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	For IMS-based VoIP, the S-CSCF and optionally, the P-CSCF provide the IRI events. For IMS-based VoIP, the functional element that provides the communication content (CC) interception depends on the call scenario and network configuration.		For IMS-based VoIP, the S-CSCF and optionally, the P-CSCF provide the IRI events. For IMS-based VoIP, the functional element that provides the communication content (CC) interception depends on the call scenario and network configuration.

	As described in 33.107, CC interception is done by one of the following functional elements (referred to as CC Intercept Function)		The term "CC Intercept Function" is a generic term used to denote a network function that has access to the voice media of an intercepted call. The term "CC Interception Triggering Function" is a generic term used to denote a network function that provides a trigger to intercept the CC.

			As described in 33.107, CC interception may be done by one of the following functional elements (referred to as CC Intercept Function)
	* PDN-GW/GGSN		* PDN-GW/GGSN
	* IMS-AGW		* IMS-AGW

Paul: /* EPS Multimedia */

2021-06-02T15:18:59Z

EPS Multimedia

← Older revision		Revision as of 10:18, 2 June 2021
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	This includes IMS-based voice (VoLTE) or other services.		This includes IMS-based voice (VoLTE) or other services.

			33.108 12.1.4
			Lawful intercept identifier (LIID) and Network identifier are same as data. The correlation number is unique per VoIP session.

			For IMS-based VoIP, the S-CSCF and optionally, the P-CSCF provide the IRI events. For IMS-based VoIP, the functional element that provides the communication content (CC) interception depends on the call scenario and network configuration.

			As described in 33.107, CC interception is done by one of the following functional elements (referred to as CC Intercept Function)
			* PDN-GW/GGSN
			* IMS-AGW
			* TrGW
			* IM-MGW
			* MRF

			The trigger to perform the CC interception at the above functional elements may be provided by the following functional elements (referred to as CC Interception Triggering Function)

			{\| class="wikitable sortable"
			\|-
			! CC Interception Triggering Function !! CC Intercept Function
			\|-
			\| P-CSCF\|\| PDN-GW/GGSN
			\|-
			\| P-CSCF \|\| IMS-AGW
			\|-
			\| IBCF \|\| TrGW
			\|-
			\| MGCF \|\| IM-MGW
			\|-
			\| S-CSCF \|\| MRF
			\|}

	<center>[[My lawful interception notes]]</center>		<center>[[My lawful interception notes]]</center>

Paul: organized into data and multimedia

2021-06-02T15:11:47Z

organized into data and multimedia

← Older revision		Revision as of 10:11, 2 June 2021
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	*3GPP TS 33.107		*3GPP TS 33.107
	*3GPP TS 33.108		*3GPP TS 33.108

			== EPS Data ==

	=== IRI ===		=== IRI ===


	'''The following events are applicable to the MME:'''		'''The following events are applicable to the MME:'''
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	* Table 10.5.1.1.19: Register location REPORT Record		* Table 10.5.1.1.19: Register location REPORT Record
	* Table 10.5.1.1.20: Location information request REPORT Record		* Table 10.5.1.1.20: Location information request REPORT Record

			== EPS Multimedia ==

			This includes IMS-based voice (VoLTE) or other services.





	<center>[[My lawful interception notes]]</center>		<center>[[My lawful interception notes]]</center>

Paul: /* IRI */

2020-11-30T20:04:07Z

IRI

← Older revision		Revision as of 15:04, 30 November 2020
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	=== IRI ===		=== IRI ===

	The following events are applicable to the MME:		'''The following events are applicable to the MME:'''
	*Attach;		*Attach;
	*Detach;		*Detach;
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	*UE Requested PDN disconnection;		*UE Requested PDN disconnection;
	*Start of interception with E-UTRAN attached UE.		*Start of interception with E-UTRAN attached UE.
	The following events are applicable to the Serving GW (S-GW) and PDN GW (P-GW):		'''The following events are applicable to the Serving GW (S-GW) and PDN GW (P-GW):'''
	*Bearer activation (valid for both Default and Dedicated bearer);		*Bearer activation (valid for both Default and Dedicated bearer);
	*Start of intercept with bearer active;		*Start of intercept with bearer active;
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	*UE Requested Bearer Resource Modification;		*UE Requested Bearer Resource Modification;
	*Packet Data Header Information.		*Packet Data Header Information.
	The following events are applicable to the HSS:		'''The following events are applicable to the HSS:'''
	*Serving Evolved Packet System.		*Serving Evolved Packet System.
	*HSS subscriber record change;		*HSS subscriber record change;
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	*Register location;		*Register location;
	*Location information request.		*Location information request.
	The following LALS Reports are applicable to the EPS (see Clause 19):		'''The following LALS Reports are applicable to the EPS (see Clause 19):'''
	*Report for LALS Target Positioning;		*Report for LALS Target Positioning;
	*Report for LALS Enhanced Location for IRI.		*Report for LALS Enhanced Location for IRI.

Paul: Added 33.107 clause 12.2.1.2

2020-11-30T19:54:04Z

Added 33.107 clause 12.2.1.2

← Older revision		Revision as of 14:54, 30 November 2020
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	=== IRI ===		=== IRI ===

			The following events are applicable to the MME:
			*Attach;
			*Detach;
			*Tracking Area/EPS Location Update;
			*UE requested PDN connectivity;
			*UE Requested PDN disconnection;
			*Start of interception with E-UTRAN attached UE.
			The following events are applicable to the Serving GW (S-GW) and PDN GW (P-GW):
			*Bearer activation (valid for both Default and Dedicated bearer);
			*Start of intercept with bearer active;
			*Bearer modification;
			*Bearer deactivation;
			*UE Requested Bearer Resource Modification;
			*Packet Data Header Information.
			The following events are applicable to the HSS:
			*Serving Evolved Packet System.
			*HSS subscriber record change;
			*Cancel location
			*Register location;
			*Location information request.
			The following LALS Reports are applicable to the EPS (see Clause 19):
			*Report for LALS Target Positioning;
			*Report for LALS Enhanced Location for IRI.

	==== Home Subscriber Server (HSS) IRI ====		==== Home Subscriber Server (HSS) IRI ====

Paul: added 33.107 as reference

2020-11-30T19:50:09Z

added 33.107 as reference

← Older revision		Revision as of 14:50, 30 November 2020
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	== Evolved Packet Systems (EPS) ==		== Evolved Packet Systems (EPS) ==

	3GPP TS 33.108		*3GPP TS 33.107
			*3GPP TS 33.108

	=== IRI ===		=== IRI ===

Paul: /* Home Subscriber Server (HSS) IRI */

2020-11-30T19:49:23Z

Home Subscriber Server (HSS) IRI

← Older revision		Revision as of 14:49, 30 November 2020
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	* Table 10.5.1.1.12: Serving Evolved Packet System REPORT Record		* Table 10.5.1.1.12: Serving Evolved Packet System REPORT Record
	* Table 10.5.1.1.17: HSS subscriber record change REPORT Record		* Table 10.5.1.1.17: HSS subscriber record change REPORT Record
			* Table 10.5.1.1.18: Cancel location REPORT Record
			* Table 10.5.1.1.19: Register location REPORT Record
			* Table 10.5.1.1.20: Location information request REPORT Record

	<center>[[My lawful interception notes]]</center>		<center>[[My lawful interception notes]]</center>