Thursday February 22, 2024

Southbound Interface Network Resources APIs Version 4.0

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This specification defines the APIs that an Operator Platform would use for its interaction with the core network’s capabilities on its Southbound Interface to the Network Resources. This would enable the Operator Platform among others to expose NaaS capabilities but is also needed to support edge compute scenarios (e.g. where mobility of the end user is relevant like cases where the end user’s application session would have to be migrated to a different application server to avoid a too high latency). The APIs covered for the Southbound Interface to the network resources are mostly exposed by 3GPP’s NEF and SCEF functions. This specification defines a baseline for the APIs that those functions are expected to support to enable the Operator Platform use cases. This new version of the specification brings several clarifications and bug fixes and aligns with the requirements in GSMA PRD OPG.02 v5.0. For ease of use, the Open API definition of the API that is defined in this specification for mapping IP addresses to more generic long term subscriber identifiers such as the MSISDN is provided in this yaml file. As described in the specification, the server side of this API could be implemented in several ways.

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