Subscription Data Query Filtering for Single-Response Retrieval
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Solution Overview
Problem
Existing communication networks face inefficiencies in retrieving subscription data due to multiple read procedures, leading to performance degradation and increased resource consumption, particularly when accessing subscription information from a unified data repository (UDR) in 5G systems.
Innovation Solution
Implement a mechanism to filter and retrieve subscription information sub-resources using query parameters that specify the network function type and instance, allowing for a single response containing the required data, thereby reducing unnecessary read requests.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If multiple read requests are made to retrieve subscription data from the unified data repository, then complete subscription information can be obtained, but performance degrades and resource consumption increases due to requests for non-existent resources
Solution Approach 1:
The system performs preliminary actions by checking the presence of sub-resources before attempting to read them. The UDM checks whether AMF subscription information exists for each EE subscription before making read requests to the UDR, avoiding unnecessary requests for non-existent resources and improving overall performance
Solution Approach 2:
Instead of making complete read requests for all subscription data regardless of existence, the system applies partial action by selectively reading only the AMF subscription information when it exists. This partial read approach reduces unnecessary requests while maintaining data completeness for existing resources
2Loss of information
If multiple read requests are made to retrieve subscription data, then comprehensive data can be retrieved, but network resource consumption increases
Solution Approach 1:
The UDM performs preliminary checking of sub-resource presence before making read requests. By first determining whether AMF subscription information exists for each EE subscription, the system avoids making unnecessary read requests to the UDR, thereby reducing network resource consumption while maintaining data completeness for existing resources
Solution Approach 2:
The system extracts and removes unnecessary read requests from the overall data retrieval process. By filtering out requests for non-existent AMF subscription information, the system reduces the number of network transactions and conserves network resources while still retrieving necessary subscription data
3Productivity
If query parameters are added to filter subscription data, then data retrieval efficiency improves, but system complexity increases
Solution Approach 1:
The system segments the subscription data retrieval process into distinct phases: first checking the presence of AMF subscription information for each EE subscription, then selectively reading only the AMF subscription information when it exists. This segmentation simplifies the overall process by breaking down the complex task of retrieving potentially non-existent data into manageable steps
Data Source
AI summary
An apparatus for use by a management network element or management network function of a communication network, the apparatus comprising at least one processing circuitry, and at least one memory for storing instructions to be executed by the processing circuitry, wherein the at least one memory and the instructions are configured to, with the at least one processing circuitry, cause the apparatus at least: to provide, with a request for data, query information as a part of a data retrieving process to read subscription data from a data repository element or data repository function, the query information being set for filtering sub-resources of subscription information within subscription data and for requesting a return of data according to the request in a single response, and to receive the requested data with the single response.