Content for TS 23.222 Word version: 19.1.0

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8.28 Registering the API provider domain functions on the CAPIF 8.28.1 General 8.28.2 Information flows 8.28.2.1 Registration request 8.28.2.2 Registration response 8.28.3 Procedure 8.29 Update registration information of the API provider domain functions on the CAPIF 8.29.1 General 8.29.2 Information flows 8.29.2.1 Registration update request 8.29.2.2 Registration update response 8.29.3 Procedure
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8.28 Registering the API provider domain functions on the CAPIF |R16| p. 93

8.28.1 General p. 93

The procedure in this subclause corresponds to the architectural requirements for registering the API provider domain functions on the CAPIF. This procedure registers the API provider domain functions as authorized users of the CAPIF functionalities.

8.28.2 Information flows p. 93

8.28.2.1 Registration request p. 93

Table 8.28.2.1-1 describes the information flow, registration request, from the API management function to the CAPIF core function.

Table 8.28.2.1-1: Registration request

Information Element	Status	Description
List of API provider domain functions	M	List of API provider domain functions including role (e.g. AEF, APF, AMF) and, if required, specific security information.
API provider name	O	The API provider name uniquely identifies an API provider (e.g. Internet Service Provider).
Security information	M	Information for CAPIF core function to validate the registration request

8.28.2.2 Registration response p. 94

Table 8.28.2.2-1 describes the information flow, registration response, from the CAPIF core function to the API management function.

Table 8.28.2.2-1: Registration response

Information Element	Status	Description
List of identities	M (1)	List of identities, for each successfully registered API provider domain function and any specific security information.
Security information	O	Information to be used by the API provider domain function in subsequent CAPIF API invocations. Provided when registration is successful.
Reason	O (2)	Information related to registration result specific to individual API provider domain functions. Provided when the registration fails.
NOTE 1: Information element shall be present when at least one registration request is successful. NOTE 2: Information element may be present when at least one registration requests fail.

8.28.3 Procedure p. 94

Figure 8.28.3-1 illustrates the procedure for registering API provider domain functions on the CAPIF core function.

Reproduction of 3GPP TS 23.222, Fig. 8.28.3-1: Procedure for registration of API provider domain functions on CAPIF

Figure 8.28.3-1: Procedure for registration of API provider domain functions on CAPIF

Step 1.

For registration of API provider domain functions on the CAPIF core function, the API management function sends a registration request to the CAPIF core function. The registration request contains a list of information about all the API provider domain functions, which require registration on the CAPIF core function.

Step 2.

The CAPIF core function validates the received request and generates the identity and other security related information for all the API provider domain functions listed in the registration request.

Step 3.

The CAPIF core function sends the generated information in the registration response message to the API management function.

Step 4.

The API management function configures the received information to the individual API provider domain functions.

8.29 Update registration information of the API provider domain functions on the CAPIF |R16| p. 95

8.29.1 General p. 95

The procedure in this subclause corresponds to the architectural requirements for update of the registration information of the API provider domain functions on the CAPIF.

8.29.2 Information flows p. 95

8.29.2.1 Registration update request p. 95

Table 8.29.2.1-1 describes the information flow, registration update request, from the API management function to the CAPIF core function.

Table 8.29.2.1-1: Registration update request

Information Element	Status	Description
List of API provider domain functions requiring update	M	List of API provider domain functions requiring updates, including role (e.g. AEF, APF, AMF) and, if required, specific security information.
Security information	M	Information for CAPIF core function to validate the registration request

8.29.2.2 Registration update response p. 95

Table 8.29.2.2-1 describes the information flow, registration update response, from the CAPIF core function to the API management function.

Table 8.29.2.2-1: Registration update response

Information Element	Status	Description
List of identities	M (1)	List of identities, for each successfully updated API provider domain function and any specific security information.
Security information	O	Information to be used by the API provider domain function in subsequent CAPIF API invocations. Provided when registration update is successful.
Reason	O (2)	Information related to registration update result specific to individual API provider domain functions. Provided when the registration fails.
NOTE 1: Information element shall be present when at least one registration update request is successful. NOTE 2: Information element may be present when at least one registration update requests fail.

8.29.3 Procedure p. 96

Figure 8.29.3-1 illustrates the procedure for updating the registration information of the API provider domain functions on the CAPIF core function.

Reproduction of 3GPP TS 23.222, Fig. 8.29.3-1: Procedure for update of registration information of API provider domain functions on CAPIF

Figure 8.29.3-1: Procedure for update of registration information of API provider domain functions on CAPIF

Step 1.

For updating the registration information of API provider domain functions on the CAPIF core function, the API management function sends a registration update request to the CAPIF core function. The registration update request contains a list of information about all the API provider domain functions, which require registration update on the CAPIF core function.

Step 2.

The CAPIF core function validates the received request and updates the identity and other security related information for all the API provider domain functions listed in the registration request.

Step 3.

The CAPIF core function sends the updated information in the registration update response message to the API management function.

Step 4.

The API management function configures the received information to the individual API provider domain functions.