Disaster Inbound Roamer Access Control in 5G Networks
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Solution Overview
Problem
During a partial outage in a mobile telecommunication network, users from the affected network may face difficulties accessing other operational networks, leading to congestion and adverse effects on the second network's services due to multiple users attempting to roam.
Innovation Solution
The second telecommunication network broadcasts a message indicating roaming availability to User Equipments from the affected network, implements Unified Access Control to manage the number of new entrants, and configures network slices to handle Disaster Inbound Roamers, using threshold values and random number generation to control access and prevent network overload.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple UEs from the affected network attempt to register with the second network, then more users can access service during disaster, but network congestion occurs and service quality deteriorates
Solution Approach 1:
The patent implements Unified Access Control (UAC) that allows partial access for disaster inbound roamers rather than complete open access. The network operator can configure access barring parameters to permit a controlled number of roamers to register while preventing excessive access that would cause network congestion. This resolves the contradiction by enabling sufficient roaming capability while maintaining service quality through regulated access levels.
2Ease of operation
If the second network accepts all roaming users without control, then all affected users can connect, but network overload occurs and existing users are impacted
Solution Approach 1:
The patent implements access control parameters and barring configurations before disaster inbound roamers attempt to register. The network operator pre-configures UAC parameters, access barring lists, and threshold values that automatically activate when roamers attempt registration. This preliminary setup enables seamless roaming registration for authorized users while simultaneously preventing network overload through pre-established control mechanisms.
Solution Approach 2:
The patent utilizes configurable access control parameters including barring ratios, threshold values, and access identities that can be dynamically adjusted. By changing these parameters, the network can control the number and type of disaster inbound roamers accepted while maintaining network capacity for existing users. The system monitors network load and adjusts parameter values to balance roaming accessibility with network productivity.
3Reliability
If access control mechanisms are implemented to manage roamer numbers, then network overload is prevented, but access complexity increases
Solution Approach 1:
The patent implements automated access control mechanisms where the network system automatically evaluates and controls disaster inbound roamer access without manual intervention. The Unified Access Control system autonomously monitors registration attempts, applies barring parameters, and enforces access policies based on pre-configured rules. This self-service approach maintains network stability through automated control while minimizing the operational complexity burden on network operators.
Data Source
AI summary
The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. Disclosed is a method of operating a second telecommunication network to manage access of Disaster Inbound Roamers, DIR, from a first telecommunication network, to the second telecommunication network, comprising the step of: the second telecommunication network broadcasting a message indicating to User Equipments, UEs, of the first telecommunications network that they are able to roam on the second telecommunication network.