NWDAF Capability Signaling for Accurate Analytics Subscription
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In a multi-NWDAF deployment scenario, the selection of a target NWDAF by an analytics consumer or source NWDAF may result in subscribing to services from a network element that does not support the required capabilities, leading to adverse impacts on analytics results and resource consumption.
Innovation Solution
A communication method and apparatus that enables network elements to determine the capabilities of potential NWDAFs through information exchange, allowing selective subscription to services from NWDAFs that support the required capabilities, such as accuracy checking, analytics aggregation, or metadata provisioning, thereby avoiding resource wastage and ensuring accurate analytics results.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the analytics consumer or source NWDAF discovers and selects a target NWDAF without capability verification, then the service subscription process is simplified and faster, but the selected target NWDAF may be incapable of providing the required analytics services
Solution Approach 1:
The patent applies preliminary action by having the target NWDAF proactively send capability indication information to the analytics consumer or source NWDAF before the service subscription is finalized. This allows the selecting entity to verify capabilities in advance and make an informed decision, preventing the selection of incapable NWDAFs while maintaining a streamlined subscription process.
Solution Approach 2:
The patent implements feedback by introducing a capability indication information transmission mechanism where the target NWDAF provides feedback about its supported capabilities to the analytics consumer or source NWDAF. This feedback loop enables the selecting entity to adjust its subscription decisions based on the actual capabilities of the target NWDAF, ensuring reliable service provision.
2Productivity
If the first network element subscribes to analytics service from a first data analytics network element without capability checking, then the subscription process is more efficient, but the analytics results received may not meet the required accuracy and completeness
Solution Approach 1:
The patent applies preliminary action by enabling the first network element to obtain capability indication information about the first data analytics network element before completing the subscription. This allows verification of capabilities such as accuracy checking, analytics aggregation, and metadata provisioning in advance, ensuring that the selected NWDAF can deliver accurate analytics results while maintaining subscription efficiency.
Solution Approach 2:
The patent implements feedback by establishing a mechanism where capability indication information is transmitted from the first data analytics network element to the first network element. This feedback enables the first network element to make informed subscription decisions based on the actual capabilities of the analytics provider, ensuring both efficient subscription and high-quality analytics results.
3Device complexity
If capability information is not exchanged during NWDAF selection, then the communication overhead is reduced and the process is simpler, but the selecting network element cannot determine whether the target NWDAF supports required capabilities
Solution Approach 1:
The patent applies the taking out principle by extracting capability indication information as a separate, dedicated transmission from the target NWDAF to the analytics consumer or source NWDAF. This extraction approach allows capability information to be obtained efficiently without complicating the overall subscription process, while ensuring that critical capability data is not lost during the selection process.
Data Source
AI summary
This application provides communication methods and communication apparatuses. According to an example method provided in this application, a first network element can receive first information from a second network element. The second network element is a source data analytics network element. The source data analytics network element is configured to provide an analytics service for the first network element. The first information indicates whether at least one first data analytics network element supports a first capability. The first network element can determine, based on the first information, whether to subscribe to the analytics service from the second network element. The first capability includes one or more of the following: an accuracy checking capability, an analytics aggregation capability, or an analytics metadata provisioning capability.