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.
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).
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.
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.
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: