RAN Event Report Transmission via Network Function Intermediary
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Solution Overview
Problem
The challenge in new generation wireless communication technology is how to report Radio Access Network (RAN) events to the Network Data Analytics Function (NWDAF) without a direct interface between RAN nodes and NWDAF, which is essential for network optimization based on RAN event reports.
Innovation Solution
A method and apparatus for RAN event report transmission that involves sending an event report subscription to a radio access network node, receiving the report, and transmitting it to the NWDAF through network functions like AMF or RECF, enabling the creation of an event container for multiple reports to be sent in a predefined time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a direct interface between RAN nodes and NWDAF is established, then RAN event report transmission is simplified, but system architecture complexity increases and interface management becomes more difficult
Solution Approach 1:
The patent introduces a network function (AMF or RECF) as an intermediary between RAN nodes and NWDAF. This mediator receives event reports from RAN nodes and forwards them to NWDAF, eliminating the need for a direct interface while simplifying the architecture. The intermediary approach reduces interface management complexity and maintains reliable event reporting.
2Reliability
If multiple event reports are transmitted separately, then each report can be processed independently, but transmission time and network load increase
Solution Approach 1:
The patent merges multiple event reports into a single event container that is transmitted together to the network function. This consolidation reduces the number of separate transmission messages, decreasing transmission time and network load while maintaining the ability to process each event report independently through structured data organization within the container.
Data Source
AI summary
The present application is directed to a method and apparatus for RAN event report transmission and network optimization based on analytics of RAN event reports. According to an embodiment of the present application, a method includes sending an event report subscription to a radio access network node, receiving a report of an event associated with the event report subscription from the radio access network node, and transmitting the received report to a network data analytics function. This method can be implemented in a network function in a core network, for example, an access management function or a RAN event collection function.