Access Category Mapping for Wireless Network Resource Control
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Solution Overview
Problem
The increasing number of user equipment (UEs) and data transmission requirements in wireless communication systems pose challenges in efficiently managing limited radio resources, delaying latency, and providing fair access opportunities while supporting new radio access technologies.
Innovation Solution
A method where user equipment (UE) and base stations use mapping information and priority data to determine permitted access categories, allowing access attempts only when higher-priority categories are permitted, and dynamically allocate access categories based on UE types and services to manage radio resource control and access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the number of user equipments (UEs) and data transmission requirements increase, then network capacity and service coverage improve, but radio resource management becomes more difficult and access congestion increases
Solution Approach 1:
The patent segments the access attempt into multiple independent checks corresponding to different access categories (AC 0-9). Each category has its own access control information (barred status, probability, duration) that can be independently evaluated. This segmentation allows the system to manage access for numerous UEs by dividing the complex access control into manageable categorical units, resolving the contradiction between network capacity and management complexity.
Solution Approach 2:
The patent introduces multiple access control parameters (barred status, probability value, duration) that can be dynamically adjusted for each access category. These parameters enable flexible resource allocation and access control strategies, allowing the network to adapt to varying traffic conditions and UE types without increasing fundamental system complexity, thus resolving the contradiction between network capacity and management complexity.
2Ease of operation
If access control checks are performed for multiple access categories, then access fairness and resource allocation improve, but access latency increases
Solution Approach 1:
The patent performs preliminary evaluation of access control information for all applicable access categories before the actual access attempt. The UE determines in advance which access categories are permitted, barred, or require probability checks, and prepares the appropriate access category for the attempt. This preliminary action ensures fair and accurate access control while minimizing latency during the actual access process.
Solution Approach 2:
The patent implements a hierarchical checking approach where the UE first checks for barred status (partial action), and only performs probability checks or full evaluations for categories that are not barred. This partial action approach ensures access fairness by checking all categories while reducing latency by skipping detailed checks for obviously barred categories, resolving the contradiction between fairness and latency.
3Measurement precision
If access control information is stored and processed for each access category, then access control precision and resource allocation accuracy improve, but memory usage and processing overhead increase
Solution Approach 1:
The patent applies local quality by storing access control information specifically for the 10 standardized access categories (AC 0-9) that are most relevant to different UE types and services. Each access category has tailored access control parameters (barred status, probability, duration) optimized for its specific use case. This localized approach provides high access control precision for critical categories while avoiding the need to store information for all possible UE scenarios, thus resolving the contradiction between precision and memory usage.
4Productivity
If the system supports new radio access technologies and high-density nodes, then service quality and data capacity improve, but system complexity and resource management difficulty increase
Solution Approach 1:
The patent implements a universal access control framework using 10 standardized access categories that can accommodate multiple radio access technologies (LTE, 5G NR, Wi-Fi) and different UE types (mobile, stationary, M2M, IoT). The same access category structure and control mechanisms apply across different technologies and scenarios, providing multi-functionality that resolves the contradiction between data capacity and system complexity by offering a unified management approach.
Data Source
AI summary
A user equipment (UE) receives mapping information on each of a plurality of access categories. The UE determines whether access for a corresponding access category is permitted by applying access control information of an access category in the order of an access category with a higher priority to an access category with a lower priority based on the priority information, among access categories into which access attempt is mapped in accordance with the mapping information, if the access attempt is triggered.