Wi-Fi Admission Control for Priority User Access
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Solution Overview
Problem
Current radio access networks (RANs) and Wi-Fi access points face challenges such as resource underutilization, congestion, and performance degradation, particularly during peak demand or emergencies, which hinder priority users' access to essential services like messaging and internet access.
Innovation Solution
A Wi-Fi admission control and prioritization service is implemented to provide priority access to Wi-Fi access points for special classes of users, using priority information stored in devices like USIM applets, and managing connection reservations to ensure priority users can establish and maintain connections even during congestion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If priority access control is implemented for Wi-Fi connections, then priority users can maintain reliable access during congestion, but network complexity and resource management overhead increase
Solution Approach 1:
The system performs preliminary actions by pre-identifying priority users through USIM applet information and pre-reserving Wi-Fi connection resources for them. The network device obtains priority user information in advance and establishes a priority connection pool before congestion occurs, ensuring that when congestion happens, priority users can immediately access reserved resources without complex real-time arbitration.
Solution Approach 2:
The Wi-Fi connection pool is segmented into priority and non-priority connection pools. The system divides network resources by creating separate connection queues - a first connection pool for priority users and a second connection pool for regular users. This segmentation simplifies the admission control logic by allowing independent management of each pool rather than complex priority arbitration within a single pool.
2Reliability
If connection pools are reserved for priority users, then access reliability improves during congestion, but network resource utilization efficiency decreases
Solution Approach 1:
The system dynamically adjusts the allocation and size of connection pools based on real-time network conditions and user priority levels. The network device monitors network status and can flexibly allocate resources between priority and non-priority pools - expanding the priority pool when congestion is detected and priority users need guaranteed access, while contracting it during normal conditions to maximize overall resource utilization.
Solution Approach 2:
The system changes the parameter of connection pool allocation dynamically. Instead of fixed reservation, the network device adjusts the number of available connections in each pool based on network load, user density, and service requirements. This allows the network to maintain priority user access reliability while optimizing overall resource utilization by adapting parameters to current conditions.
3Measurement precision
If priority information is stored in USIM applets and used for admission control, then user identification and prioritization accuracy improve, but device complexity and security requirements increase
Solution Approach 1:
The USIM applet on the user device performs self-service by automatically providing priority identification information to the network without requiring manual configuration or complex authentication protocols. The network device simply reads the priority level from the USIM applet, and the system automatically routes the user to the appropriate connection pool, eliminating the need for complex security verification mechanisms.
Data Source
AI summary
A method, a device, and a non-transitory storage medium are described in which a Wi-Fi admission control and prioritization service is provided. The Wi-Fi admission control and prioritization service may be included in a Wi-Fi access device. The Wi-Fi admission control and prioritization service may include the Wi-Fi access device reserving Wi-Fi data connections for priority users. An end device may transmit priority information to the Wi-Fi access device during a Wi-Fi connection establishment procedure. The Wi-Fi access device may use one of the reserved data connections to establish a Wi-Fi connection with the end device. The priority information may include a non-Wi-Fi access control class value that indicates the end device is of a high priority. The Wi-Fi access device may provide quality of service and prioritization, which is in correspondence to the priority information, to traffic of the end device that traverses the Wi-Fi access device.