How should 5G network capabilities be opened up? （2）

5G capability open architecture and deployment

Capability openness has a long history, but there is no authoritative standard to follow for the architecture of capability openness. Based on this, 3GPP introduced the CAPIF (Common API Framework) standard to guide the open construction of capabilities within the scope of 3GPP. According to the framework, the ability to open from the architecture can be divided into CAPIF Core Function, Exposing API Function, API Publishing Function and API Management Function four logical functions, the actual construction of network, the four Function modules can be flexible combination, adopt centralized or distributed deployment.

For 5G capacity open construction, the capability engine layer belonging to the API provider domain will contain multiple network functional entities, providing different capabilities to open API services based on their own capabilities. The API authentication, authorization, logging, billing and other functions defined by Core Function are the common requirements required by various functional entities with open capabilities. CAPIF advised, therefore, the Core Function + API Exposing open gateway combination for API Function, on the one hand, for each Function open engine entity provides open API certification authentication billing, and other functions; On the other hand, a unified entry point for AF capability calls can be provided for some API and scenarios, making it easy for AF to use and mask the network internal topology. Ability to open Function entity in realize decoupling ability and realize the API Exposing Function, API Publishing Function and API Management Function, achieve the release of the API and the ability to in scenarios such as low latency open call directly.

Suggestions on 5G capacity opening construction

Capacity opening covers a wide range, including network layer capability, B domain side capability, O domain side capability, etc. Looking at the operation of capability open platform, it can be seen that relatively successful projects focus on the core competence they are good at, and provide operational support and ecological services for specific application scenarios and business models. For 5G capacity opening, it is suggested that the capacity can be screened at the beginning of the construction according to the application needs of the industry, and the construction can be planned in stages, so as to avoid large-scale open construction of comprehensive capacity API.

First of all, considering...Continue to read more or contact me：[email protected]