My 3GPP TS 23.003 notes - Revision history

Paul: /* Subscription Concealed Identifier (SUCI) § 2.2B */

2023-07-16T22:18:48Z

Subscription Concealed Identifier (SUCI) § 2.2B

Paul: /* 5G Globally Unique Temporary UE Identity (5G-GUTI) § 2.10 */

2023-02-23T22:42:05Z

5G Globally Unique Temporary UE Identity (5G-GUTI) § 2.10

← Older revision		Revision as of 17:42, 23 February 2023
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	The 5G-TMSI is also 4 octets (32 bits), local to one AMF, and uniquely identifies a UE within that AMF. The 5G-TMSI structure and coding format is operator and manufacturer dependent.		The 5G-TMSI is also 4 octets (32 bits), local to one AMF, and uniquely identifies a UE within that AMF. The 5G-TMSI structure and coding format is operator and manufacturer dependent.

	== 5G Globally Unique Temporary UE Identity (5G-GUTI) § 2.10 ==		== 5G Globally Unique Temporary Identity (5G-GUTI) § 2.10 ==

	=== Introduction § 2.10.1 ===		=== Introduction § 2.10.1 ===

Paul: /* Structure of the 5G-Short-Temporary Mobile Subscriber Identity (5G-S-TMSI) § 2.11 */

2022-12-06T17:14:32Z

Structure of the 5G-Short-Temporary Mobile Subscriber Identity (5G-S-TMSI) § 2.11

← Older revision		Revision as of 12:14, 6 December 2022
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	Diagram:		Diagram:

	[[File:5G-S-TMSI struct.png\|~~center~~]]		[[File:5G-S-TMSI struct.png\|5G-S-TMSI structure]]

	== Definition of Access Point Name § 9 ==		== Definition of Access Point Name § 9 ==

Paul: /* Structure of the 5G-Short-Temporary Mobile Subscriber Identity (5G-S-TMSI) § 2.11 */

2022-12-06T16:48:01Z

Structure of the 5G-Short-Temporary Mobile Subscriber Identity (5G-S-TMSI) § 2.11

← Older revision		Revision as of 11:48, 6 December 2022
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	<code><5G-S-TMSI> = <AMF Set ID><AMF Pointer><5G-TMSI></code>		<code><5G-S-TMSI> = <AMF Set ID><AMF Pointer><5G-TMSI></code>

			Diagram:

			[[File:5G-S-TMSI struct.png\|center]]

	== Definition of Access Point Name § 9 ==		== Definition of Access Point Name § 9 ==

Paul: /* Structure of the 5G-S-Temporary Mobile Subscriber Identity (5G-S-TMSI) § 2.11 */

2022-12-06T16:30:01Z

Structure of the 5G-S-Temporary Mobile Subscriber Identity (5G-S-TMSI) § 2.11

← Older revision		Revision as of 11:30, 6 December 2022
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	[[File:5G-GUTI struct.png\|5G-GUTI struct]]		[[File:5G-GUTI struct.png\|5G-GUTI struct]]

	== Structure of the 5G-S-Temporary Mobile Subscriber Identity (5G-S-TMSI) § 2.11 ==		== Structure of the 5G-Short-Temporary Mobile Subscriber Identity (5G-S-TMSI) § 2.11 ==
	The 5G-S-TMSI is the shortened form of the 5G-GUTI to enable more efficient radio signalling procedures (e.g. paging and Service Request). For paging purposes, the mobile is paged with the 5G-S-TMSI. The 5G-S-TMSI shall be constructed from the AMF Set ID, the AMF Pointer and the 5G-TMSI:		The 5G-S-TMSI is the shortened form of the 5G-GUTI to enable more efficient radio signalling procedures (e.g. paging and Service Request). For paging purposes, the mobile is paged with the 5G-S-TMSI. The 5G-S-TMSI shall be constructed from the AMF Set ID, the AMF Pointer and the 5G-TMSI:

Paul: /* 2.4 Structure of TMSI (also 5G-TMSI) */

2022-10-27T15:05:49Z

2.4 Structure of TMSI (also 5G-TMSI)

← Older revision		Revision as of 10:05, 27 October 2022
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	:NOTE 2: If the null protection scheme is used, the NFs can derive SUPI from SUCI when needed. The AMF derives SUPI used for AUSF discovery from SUCI when the Routing-Indicator is zero and the protection scheme is null. For an anonymous SUCI, an NF can derive an anonymous SUPI from an anonymous SUCI when needed; this is, the NF can derive a SUPI in NAI format for which the "username" part of the SUPI is "anonymous" or omitted.		:NOTE 2: If the null protection scheme is used, the NFs can derive SUPI from SUCI when needed. The AMF derives SUPI used for AUSF discovery from SUCI when the Routing-Indicator is zero and the protection scheme is null. For an anonymous SUCI, an NF can derive an anonymous SUPI from an anonymous SUCI when needed; this is, the NF can derive a SUPI in NAI format for which the "username" part of the SUPI is "anonymous" or omitted.

	== 2.4 Structure of TMSI ~~(also~~ 5G-TMSI) ==		== 2.4 Structure of Temporary Mobile Subscriber Identity (TMSI) and 5G-TMSI ==

	Since the TMSI has only local significance (i.e. within a VLR and the area controlled by a VLR, or within an SGSN and the area controlled by an SGSN, or within an MME and the area controlled by an MME), the structure and coding of it can be chosen by agreement between operator and manufacturer in order to meet local needs.		Since the TMSI has only local significance (i.e. within a VLR and the area controlled by a VLR, or within an SGSN and the area controlled by an SGSN, or within an MME and the area controlled by an MME), the structure and coding of it can be chosen by agreement between operator and manufacturer in order to meet local needs.

Paul: /* 5G Globally Unique Temporary UE Identity (5G-GUTI) § 2.10 */

2022-10-25T20:25:50Z

5G Globally Unique Temporary UE Identity (5G-GUTI) § 2.10

← Older revision		Revision as of 15:25, 25 October 2022
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	:NOTE 2: If the null protection scheme is used, the NFs can derive SUPI from SUCI when needed. The AMF derives SUPI used for AUSF discovery from SUCI when the Routing-Indicator is zero and the protection scheme is null. For an anonymous SUCI, an NF can derive an anonymous SUPI from an anonymous SUCI when needed; this is, the NF can derive a SUPI in NAI format for which the "username" part of the SUPI is "anonymous" or omitted.		:NOTE 2: If the null protection scheme is used, the NFs can derive SUPI from SUCI when needed. The AMF derives SUPI used for AUSF discovery from SUCI when the Routing-Indicator is zero and the protection scheme is null. For an anonymous SUCI, an NF can derive an anonymous SUPI from an anonymous SUCI when needed; this is, the NF can derive a SUPI in NAI format for which the "username" part of the SUPI is "anonymous" or omitted.

			== 2.4 Structure of TMSI (also 5G-TMSI) ==

			Since the TMSI has only local significance (i.e. within a VLR and the area controlled by a VLR, or within an SGSN and the area controlled by an SGSN, or within an MME and the area controlled by an MME), the structure and coding of it can be chosen by agreement between operator and manufacturer in order to meet local needs.

			The TMSI consists of 4 octets.

			The 5G-TMSI is also 4 octets (32 bits), local to one AMF, and uniquely identifies a UE within that AMF. The 5G-TMSI structure and coding format is operator and manufacturer dependent.

	== 5G Globally Unique Temporary UE Identity (5G-GUTI) § 2.10 ==		== 5G Globally Unique Temporary UE Identity (5G-GUTI) § 2.10 ==

Paul: /* Introduction § 2.10.1 */

2022-10-25T20:06:28Z

Introduction § 2.10.1

← Older revision		Revision as of 15:06, 25 October 2022
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	Diagram:		Diagram:
	[[File:5G-GUTI struct.png]]
			[[File:5G-GUTI struct.png\|5G-GUTI struct]]

	== Structure of the 5G-S-Temporary Mobile Subscriber Identity (5G-S-TMSI) § 2.11 ==		== Structure of the 5G-S-Temporary Mobile Subscriber Identity (5G-S-TMSI) § 2.11 ==

Paul: /* Subscription Concealed Identifier (SUCI) § 2.2B */

2022-10-25T20:06:03Z

Subscription Concealed Identifier (SUCI) § 2.2B

← Older revision		Revision as of 15:06, 25 October 2022
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	The SUCI is a privacy preserving identifier containing the concealed SUPI. It is defined in clause 6.12.2 of 3GPP TS 33.501.		The SUCI is a privacy preserving identifier containing the concealed SUPI. It is defined in clause 6.12.2 of 3GPP TS 33.501.

	~~<center>~~[[File:SUCI struct.png\|SUCI struct]]~~</center>~~		[[File:SUCI struct.png\|SUCI struct]]

	The SUCI is composed of the following parts:		The SUCI is composed of the following parts:

Paul: /* 5G Globally Unique Temporary UE Identity (5G-GUTI) § 2.10 */

2022-10-25T20:05:24Z

5G Globally Unique Temporary UE Identity (5G-GUTI) § 2.10

@@ Line 66: / Line 66: @@
 === Introduction § 2.10.1 ===
-The purpose of the 5G-GUTI is to provide an unambiguous identification of the UE that does not reveal the UE or the user's permanent identity in the 5G System (5GS). It also allows the identification of the Access and Mobility Management Function (AMF) and network. It can be used by the network and the UE to establish the UE's identity during signalling between them in the 5GS. See 3GPP TS 23.501 [119].
+The purpose of the 5G-GUTI is to provide an unambiguous identification of the UE that does not reveal the UE or the user's permanent identity in the 5G System (5GS). It also allows the identification of the Access and Mobility Management Function (AMF) and network. It can be used by the network and the UE to establish the UE's identity during signalling between them in the 5GS. See 3GPP TS 23.501.
 The 5G-GUTI has two main components:
@@ Line 75: / Line 75: @@
 The Globally Unique AMF Identifier (GUAMI) shall be constructed from the MCC, MNC and AMF Identifier (AMFI).
 The format and size of the 5G-GUTI is therefore the following:
 <code><5G-GUTI> = <GUAMI><5G-TMSI></code>, where <code><GUAMI> = <MCC><MNC><AMF Identifier></code> and <code><AMF Identifier> = <AMF Region ID><AMF Set ID><AMF Pointer></code>
 == Structure of the 5G-S-Temporary Mobile Subscriber Identity (5G-S-TMSI) § 2.11 ==

← Older revision		Revision as of 17:18, 16 July 2023
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	The SUCI is composed of the following parts:		The SUCI is composed of the following parts:
	:1) SUPI Type, consisting in a value in the range 0 to 7. It identifies the type of the SUPI concealed in the SUCI. The following values are defined:		:1) <span style="color:blue">SUPI Type</span>, consisting in a value in the range 0 to 7. It identifies the type of the SUPI concealed in the SUCI. The following values are defined:
	::- 0: IMSI		::- 0: IMSI
	::- 1: Network Specific Identifier (NSI)		::- 1: Network Specific Identifier (NSI)
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	::- 3: Global Cable Identifier (GCI)		::- 3: Global Cable Identifier (GCI)
	::- 4 to 7: spare values for future use.		::- 4 to 7: spare values for future use.
	:2) Home Network Identifier, identifying the home network of the subscriber.		:2) <span style="color:blue">Home Network Identifier</span>, identifying the home network of the subscriber.
	:When the SUPI Type is an IMSI, the Home Network Identifier is composed of two parts:		:When the SUPI Type is an IMSI, the Home Network Identifier is composed of two parts:
	::- Mobile Country Code (MCC), consisting of three decimal digits. The MCC identifies uniquely the country of domicile of the mobile subscription;		::- Mobile Country Code (MCC), consisting of three decimal digits. The MCC identifies uniquely the country of domicile of the mobile subscription;
	::- Mobile Network Code (MNC), consisting of two or three decimal digits. The MNC identifies the home PLMN or SNPN of the mobile subscription.		::- Mobile Network Code (MNC), consisting of two or three decimal digits. The MNC identifies the home PLMN or SNPN of the mobile subscription.
	:When the SUPI type is a Network Specific Identifier (NSI), a GLI or a GCI, the Home Network Identifier consists of a string of characters with a variable length representing a domain name as specified in clause 2.2 of IETF RFC 7542. For a GLI or a GCI, the domain name shall correspond to the realm part specified in the NAI format for SUPI in clauses 28.15.2 and 28.16.2.		:When the SUPI type is a Network Specific Identifier (NSI), a GLI or a GCI, the Home Network Identifier consists of a string of characters with a variable length representing a domain name as specified in clause 2.2 of IETF RFC 7542. For a GLI or a GCI, the domain name shall correspond to the realm part specified in the NAI format for SUPI in clauses 28.15.2 and 28.16.2.
	:3) Routing Indicator, consisting of 1 to 4 decimal digits assigned by the home network operator and provisioned in the USIM, that allow together with the Home Network Identifier to route network signalling with SUCI to AUSF and UDM instances capable to serve the subscriber.		:3) <span style="color:blue">Routing Indicator</span>, consisting of 1 to 4 decimal digits assigned by the home network operator and provisioned in the USIM, that allow together with the Home Network Identifier to route network signalling with SUCI to AUSF and UDM instances capable to serve the subscriber.
	:Each decimal digit present in the Routing Indicator shall be regarded as meaningful (e.g. value "012" is not the same as value "12"). If no Routing Indicator is configured on the USIM or the ME, this data field shall be set to the value 0 (i.e. only consist of one decimal digit of "0").		:Each decimal digit present in the Routing Indicator shall be regarded as meaningful (e.g. value "012" is not the same as value "12"). If no Routing Indicator is configured on the USIM or the ME, this data field shall be set to the value 0 (i.e. only consist of one decimal digit of "0").
	:4) Protection Scheme Identifier, consisting in a value in the range of 0 to 15 (see Annex C.1 of 3GPP TS 33.501). It represents the null scheme or a non-null scheme specified in Annex C of 3GPP TS 33.501 or a protection scheme specified by the HPLMN; the null scheme shall be used if the SUPI type is a GLI or GCI.		:4) <span style="color:blue">Protection Scheme Identifier</span>, consisting in a value in the range of 0 to 15 (see Annex C.1 of 3GPP TS 33.501). It represents the null scheme or a non-null scheme specified in Annex C of 3GPP TS 33.501 or a protection scheme specified by the HPLMN; the null scheme shall be used if the SUPI type is a GLI or GCI.
	:5) Home Network Public Key Identifier, consisting in a value in the range 0 to 255. It represents a public key provisioned by the HPLMN or SNPN and it is used to identify the key used for SUPI protection. This data field shall be set to the value 0 if and only if null protection scheme is used;		:5) <span style="color:blue">Home Network Public Key Identifier</span>, consisting in a value in the range 0 to 255. It represents a public key provisioned by the HPLMN or SNPN and it is used to identify the key used for SUPI protection. This data field shall be set to the value 0 if and only if null protection scheme is used;
	:6) Scheme Output, consisting of a string of characters with a variable length or hexadecimal digits, dependent on the used protection scheme, as defined below. It represents the output of a public key protection scheme specified in Annex C of 3GPP TS 33.501 or the output of a protection scheme specified by the HPLMN.		:6) <span style="color:blue">Scheme Output</span>, consisting of a string of characters with a variable length or hexadecimal digits, dependent on the used protection scheme, as defined below. It represents the output of a public key protection scheme specified in Annex C of 3GPP TS 33.501 or the output of a protection scheme specified by the HPLMN.

	Figure 2.2B-2 defines the scheme output for the null protection scheme. Figure recreated here:		Figure 2.2B-2 defines the scheme output for the null protection scheme. Figure recreated here: