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Source:   TS 23.003, clause 12.5

The last component of the SAI.


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Source:   TS 23.003, clause 12.5

The Service Area Identifier (SAI) is used to identify an area consisting of one or more cells belonging to the same Location Area. Such an area is called a Service Area and can be used for indicating the location of a UE to the CN.

The SAC is defined by the operator, and set in the RNC via OAM.
3GPP SAI Structure

 



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Source:   TS 23.003, clause 12.6

The last component of the SNA-Id.


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Source:   TS 23.003, clause 12.6

The Shared Network Area Identifier (SNA-Id) is used to identify an area consisting of one or more Location Areas. Such an area is called a Shared Network Area and can be used to grant access rights to parts of a Shared Network to a UE in connected mode (see TS 25.401).
3GPP SNA-ID Structure

 



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specified from  Rel-15  in
TS 23.501, clause 5.15.2 

An S-NSSAI identifies a Network Slice. It is comprised of:
  • A Slice/Service type (SST), which refers to the expected Network Slice behaviour in terms of features and services;
  • A Slice Differentiator (SD), which is optional information that complements the Slice/Service type(s) to differentiate amongst multiple Network Slices of the same Slice/Service type.


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Source:   TS 23.003, clause 18.5

A Session Transfer Identifier (STI) is a SIP URI or SIP dialogue ID and is used by the UE to request Session Transfer of a media path.


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Source:   TS 23.003, clause 18.8

A Session Transfer Identifier for CS to PS Single Radio Voice Call Continuity (STI‑rSR) is a SIP URI and is used by the UE to request access transfer of a media path.


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Source:   TS 23.003, clause 2.9

The S-TMSI is the shortened form of the GUTI to enable more efficient radio signalling procedures (e.g. paging and Service Request). For paging purposes, the mobile is paged with the S-TMSI.

The S-TMSI shall be constructed from the MMEC and the M-TMSI.
3GPP S-TMSI Structure

 



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Source:   TS 23.003, clause 18.4

A Session Transfer Number (STN) is a public telecommunication number, as defined by ITU-T Recommendation E.164 and is used by the UE to request Session Transfer of the media path from PS to CS access.


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Source:   TS 23.003, clause 18.6

The Session Transfer Number for Single Radio Voice Call Continuity (STN-SR) is a public telecommunication number, as defined by ITU-T Recommendation E.164 and is used by the MSC Server to request session transfer of the media path from the PS domain to CS domain.


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specified from  Rel-15  in
TS 33.501, clause 6.12.2 

The SUCI is a privacy preserving identifier containing the concealed SUPI. The UE shall generate a SUCI using the raw public key that was securely provisioned in control of the home network.

The protection scheme uses the raw public key of the home network. The UE shall construct a scheme-input from the subscription identifier part of the SUPI, as specified by the protection scheme (e.g., applying some padding-scheme). The UE shall execute the protection scheme with the constructed scheme-input as input and take the output as the scheme-output.

The UE shall not conceal the home network identifier, e.g., Mobile Country Code (MCC) or Mobile Network Code (MNC).

The UE shall construct the SUCI consisting of the home network identifier, the identifier of the home network public key, and the scheme-output.


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specified from  Rel-15  in
TS 23.501, clause 5.9.2 

A globally unique 5G Subscription Permanent Identifier (SUPI) shall be allocated to each subscriber in the 5G System and provisioned in the UDM/UDR. The SUPI is used only inside 3GPP system, and its privacy is specified in TS 33.501, clause 6.12. The following have been identified as valid SUPI types for this Release: NOTE: By using the NAI, it will be possible to also use non-IMSI based SUPIs.

It is possible for a representation of the IMSI to be contained within the NAI for the SUPI e.g. when used over a non-3GPP Access Technology.

In order to enable roaming scenarios, the SUPI shall contains the address of the home network (e.g. the MCC and MNC in the case of an IMSI based SUPI).

For interworking with the EPC, the SUPI allocated to the 3GPP UE shall always be based on an IMSI to enable the UE to present an IMSI to the EPC.



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