name: SUPI
full_form: Subscription Permanent Identifier
context: The 5G system shall satisfy the following requirements. Subscription authentication: The serving network shall authenticate the Subscription Permanent Identifier (SUPI) in the process of authentication and key agreement between UE and network. Serving network authentication: The UE shall authenticate the serving network identifier through implicit key authentication. NOTE 1: The meaning of 'implicit key authentication' here is that authentication is provided through the successful use of keys resulting from authentication and key agreement in subsequent procedures. NOTE 2: The preceding requirement does not imply that the UE authenticates a particular entity, e.g. an AMF, within a serving network. UE authorization: The serving network shall authorize the UE through the subscription profile obtained from the home network. UE authorization is based on the authenticated SUPI. Serving network authorization by the home network: Assurance shall be provided to the UE that it is connected to a serving network that is authorized by the home network to provide services to the UE. This authorization is 'implicit' in the sense that it is implied by a successful authentication and key agreement run. Access network authorization: Assurance shall be provided to the UE that it is connected to an access network that is authorized by the serving network to provide services to the UE. This authorization is 'implicit' in the sense that it is implied by a successful establishment of access network security. This access network authorization applies to all types of access networks. Unauthenticated Emergency Services: In order to meet regulatory requirements in some regions, the 5G system shall support unauthenticated access for emergency services. This requirement applies to all MEs and only to those serving networks where regulatory requirements for unauthenticated emergency services exist. Serving networks located in regions where unauthenticated emergency services are forbidden shall not support this feature.
description: The Subscription Permanent Identifier (SUPI) is a unique identifier used to authenticate and authorize user equipment (UE) within the 5G system. It plays a crucial role in ensuring secure access and services, including subscription authentication, serving network authentication, UE authorization, and assurance of connection to authorized networks. The SUPI is an essential component in the 3GPP's specifications for efficient and secure network operations.
explanation: SUPI is classified as an Identifier because it serves as a unique code for identifying user subscriptions within the 5G system, facilitating authentication, authorization, and access control processes.
section_title: 5.1.2 Authentication and Authorization
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biotag_Description: O,B-Parameter,I-Parameter,I-Parameter,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Technology,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Device,O,O,O,O,O,O,O,O,O,B-Parameter,O,O,O,O,O,O,O,O,O,O,O,O,O,O