Network Function Request Handling for Access Token Errors
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Solution Overview
Problem
In communication networks, network function consumers (NFc) are not adequately informed about the reasons for service request failures during access token retrieval, leading to inefficiencies in error handling and service access reliability when delegation is involved.
Innovation Solution
Implementing an apparatus and method that provides detailed error responses, specifically indicating access token errors, allowing NFc to understand the cause of failures and take appropriate corrective actions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If detailed error responses are provided to network function consumers, then error handling capability and troubleshooting effectiveness are improved, but response message complexity increases
Solution Approach 1:
The error response is segmented into distinct components: error type identification, error code, human-readable message, and diagnostic information. This segmentation allows the response to be structured and parsed systematically, improving error handling capability while maintaining manageable complexity through organized information presentation.
Solution Approach 2:
The patent implements feedback mechanisms by providing detailed error information back to network function consumers, enabling them to understand failure reasons and take corrective actions. This feedback loop enhances reliability by allowing consumers to respond appropriately to errors, while the structured feedback format prevents uncontrolled complexity expansion.
2Reliability
If access token error information is transmitted to network function consumers, then service access reliability is improved, but communication overhead increases
Solution Approach 1:
The error information is tailored to be locally relevant to the specific failure context, providing only the necessary diagnostic details needed for troubleshooting particular access token errors. This localized approach ensures reliability improvements are achieved without transmitting unnecessary information that would increase communication overhead.
Solution Approach 2:
The patent employs parameter changes by varying the level of detail in error responses based on context, such as providing more diagnostic information for critical failures versus simpler responses for minor issues. This adaptive parameter adjustment maintains service access reliability while minimizing communication overhead by avoiding excessive data transmission for all error types uniformly.
Data Source
AI summary
According to an example aspect, there is provided a method, comprising: receiving, by a service communication proxy from a network function consumer, a service request for a service by a network function producer, transmitting, in response to an error in obtaining an access token from a network repository function on the basis of the service request, a response to the service request to the network function consumer, wherein the access token is for authorizing access to a service at the network function producer and the response is indicative of an access token error.