Access Category Determination for Wireless Connection Requests
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently determining and communicating establishment cause values, particularly during high load conditions or emergency situations, where access control mechanisms like Access Class Barring (ACB) are employed to manage network overload.
Innovation Solution
The proposed solution involves determining an access category and associated access identity to determine an establishment cause for an access attempt, which is then included in the connection request message to the wireless communication network. This approach reduces the size of information needed for the establishment cause and facilitates operator-defined access categories.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional access control mechanisms are used to manage network overload, then network management capability is improved, but the size of information in connection request messages increases
Solution Approach 1:
The patent changes the parameter representation by mapping access categories to establishment cause values, transforming the information structure to reduce message size while maintaining network management capability
Solution Approach 2:
The patent extracts the essential access control information and separates it from the full connection request message, using only the necessary establishment cause values in the message while maintaining network management functionality
2Measurement precision
If detailed establishment cause values are included in connection requests, then access control precision is improved, but message size increases
Solution Approach 1:
The patent transforms detailed establishment cause values into compressed parameter representations, maintaining access control precision through standardized cause value mappings while reducing message information content
3Adaptability or versatility
If operator-defined access categories are implemented, then system adaptability is improved, but device complexity increases
Solution Approach 1:
The patent creates a universal mapping mechanism that handles both standardized and operator-defined access categories through a single determination process, allowing the device to adapt to different operator requirements without increasing fundamental complexity
Solution Approach 2:
The patent introduces an intermediary mapping layer between access categories and establishment cause values, simplifying the determination logic by providing a standardized interface that abstracts operator-specific configurations
Data Source
AI summary
Methods of operating a user equipment UE are discussed. An access category may be determined from a plurality of access categories and at least one access identity may be determined from a plurality of access identities to be applied for an access attempt. An establishment cause may be determined for the access attempt based on the access category determined from the plurality of access categories and based on the at least one access identity from the plurality of access identities. A connection request message for the access attempt may be transmitted to a wireless communication network, with the connection request message including the establishment cause determined based on the access category and based on the at least one access identity. Related devices are also discussed.