CAPIF Node Endpoint Health Checking and Stale Record Cleanup
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Solution Overview
Problem
In 5G telecommunications networks, there is a lack of effective methods for health checking and resource cleanup of service endpoints, leading to issues with unavailable API invokers and service API endpoints being registered indefinitely, which can cause network inefficiencies and congestion.
Innovation Solution
A Common Application Programming Interface (API) Framework (CAPIF) node is configured to receive health check information, including a URI and an acceptable response value, to periodically or aperiodically determine the health status of endpoints, and perform resource cleanup by deleting or compressing stale data records of inactive endpoints.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If health check procedures are implemented to monitor endpoint status, then network efficiency is improved by removing inactive endpoints, but system complexity increases due to additional monitoring mechanisms
Solution Approach 1:
The patent introduces a CAPIF node as an intermediary between the NRF and consumer NFs. This mediator performs health check procedures by sending requests to endpoints and evaluating responses, thereby managing endpoint status without requiring complex health monitoring logic in the NRF or consumer NFs themselves.
Solution Approach 2:
The system implements feedback mechanisms where the CAPIF node periodically sends health check requests to endpoints and evaluates the responses. Based on whether endpoints return acceptable responses within timeout periods, the system dynamically updates endpoint status information in the NRF, enabling automatic removal of inactive endpoints from service registries.
2Reliability
If endpoint health monitoring is performed periodically, then service reliability is improved by preventing use of inactive endpoints, but energy consumption increases due to continuous monitoring activities
Solution Approach 1:
The patent implements periodic health check actions where the CAPIF node monitors endpoint status at scheduled intervals rather than continuously. This periodic monitoring approach maintains service reliability by detecting inactive endpoints while reducing energy consumption compared to continuous monitoring. The system can adjust monitoring frequency based on service requirements and endpoint criticality.
Data Source
AI summary
Methods, systems, and computer readable media for health checking involving common application programming interface (API) framework (CAPIF) are disclosed. One example method for health checking using CAPIF comprises: at a CAPIF node including at least one processor: receiving, from a sender, a CAPIF request message including health check information usable in checking the health of an endpoint associated with the sender, wherein the health check information includes a uniform resource identifier (URI) associated with the endpoint and an acceptable response value for indicating that the endpoint is active; and determining, periodically or aperiodically, a health status of the endpoint by performing a health check procedure using the URI and the acceptable response value.