HSS Emergency Service Priority Segmentation
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Solution Overview
Problem
Current telecommunication networks fail to differentiate between users during network congestion, leading to service rejection for emergency personnel during disasters, as they treat all users equally, preventing essential services from accessing communication services while allowing non-essential users access.
Innovation Solution
Implementing a method and system that associate different user priorities with various network statuses, using a Home Subscriber Server (HSS) to manage user profiles and emergency policies, ensuring that users with higher priority values can access services during emergencies by comparing their priority with minimum priority values set for each network condition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If current telecommunication networks treat all users equally during network congestion, then network management is simple and uniform, but emergency personnel cannot access telecommunication services during disasters
Solution Approach 1:
The network user base is segmented into different priority groups (emergency personnel with high priority, regular users with normal priority). The HSS stores separate priority indicators for different users and applies different admission control policies based on network conditions and user priority, allowing emergency personnel to access services during congestion while maintaining simple management for regular users.
Solution Approach 2:
The system changes the parameter of user priority level based on network conditions. During normal conditions, all users are treated equally. During congestion or emergency conditions, the system adjusts admission decisions based on user priority parameters stored in the HSS, enabling differential treatment without permanently complicating the network management structure.
2Reliability
If the network rejects all new traffic during congestion, then network load is controlled, but essential emergency services are prevented from accessing communication services
Solution Approach 1:
Different quality of service treatment is applied to different users based on their priority indicators. High-priority users (emergency personnel) receive preferential treatment with higher admission thresholds during congestion, while normal-priority users are rejected more readily. This local differentiation ensures essential services remain available while controlling overall network load.
Solution Approach 2:
The admission control policy dynamically adjusts based on network conditions and user priority. The system monitors network load and selectively applies different rejection thresholds depending on whether the user is high-priority or normal-priority, allowing the network to maintain essential services during congestion while still controlling overall resource utilization.
3Adaptability or versatility
If the HSS stores multiple network condition statuses and user priority values, then service differentiation during emergencies is enabled, but database provisioning complexity increases
Solution Approach 1:
User priority indicators and network condition thresholds are pre-configured in the HSS during provisioning. This preliminary setup allows the system to quickly make admission decisions during emergencies without complex real-time calculations. The HSS stores pre-defined priority levels and threshold values that are automatically applied when congestion is detected, enabling service differentiation without ongoing provisioning complexity.
Data Source
AI summary
A home subscriber server (HSS) and method are described herein for supporting an emergency telecommunication service (e.g., Government Emergency Telecommunications Service (GETS)). In one embodiment, the HSS and the method are adapted to selectively provide telecommunication access to subscribers of an IP Multimedia Subsystem (IMS) by associating different user priority values with different network condition statuses, where a network condition status may be a congestion level or a disaster relief emergency status.