5G Service Discovery Response Filtering for Lower Signaling Overhead
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Solution Overview
Problem
The existing 5G service discovery response in the SBA system includes a large amount of unnecessary information, leading to high signaling overheads and waste of network and storage resources, particularly in inter-PLMN scenarios.
Innovation Solution
A communication method and apparatus that optimizes the service discovery response by determining conditions for optimization, such as identifying the source PLMN or including indication information, to reduce the amount of information carried in the response, thereby reducing signaling overheads and conserving network and storage resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the service discovery response includes complete NF profile information as defined by 3GPP protocol, then the information completeness is ensured, but the signaling overhead increases and network resources are wasted
Solution Approach 1:
The patent extracts only the necessary service instance information from the complete NF profile, excluding redundant details. The NRF returns a simplified response containing only the essential service discovery data needed by the NF client, rather than transmitting the entire NF profile structure defined in 3GPP specifications.
Solution Approach 2:
The patent segments the service discovery response into two parts: essential service instance information that must be transmitted, and optional detailed NF profile information that can be retrieved separately if needed. This segmentation allows the primary response to be compact while maintaining the ability to provide complete information on demand.
2Loss of information
If the service discovery response includes complete NF profile information, then the service information completeness is improved, but the storage resources of NF client are wasted
Solution Approach 1:
The patent extracts only the essential service instance information required for service discovery and transmission to the NF client, while excluding redundant NF profile details that would consume storage resources. The NF client receives precisely the data needed for service discovery without unnecessary information that would occupy storage space.
3Loss of energy
If the NRF returns optimized service discovery response with less information, then the signaling overhead is reduced, but the service discovery response may lack necessary details
Solution Approach 1:
The patent segments information into two layers: a compact primary response containing essential service instance information for immediate use, and an optional secondary detailed NF profile that can be provided if the NF client requires additional information. This segmentation ensures that the optimized response contains all necessary service discovery data while maintaining the capability to provide complete information if needed.
Solution Approach 2:
The patent performs preliminary action by providing the NF client with essential service instance information upfront in the optimized response, enabling immediate service discovery. If additional detailed information is required, the NF client can subsequently request the complete NF profile, ensuring that the most critical information is delivered first with minimal overhead.
Data Source
AI summary
A communication method and apparatus are provided, to optimize a service discovery response. After receiving a service discovery request that is from a network function client, a first network function repository network element determines that the service discovery request meets a first condition, and determines to optimize a service discovery response; and further, the first network function repository network element sends an optimized service discovery response to the network function client.