Subscriber Profile Selection for Roaming Jurisdiction Optimization
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Solution Overview
Problem
Current 5G wireless networks face challenges in providing seamless coverage and service access due to limited deployment, resulting in coverage holes and roaming issues, especially when users move between different jurisdictions with close proximity, leading to higher unnecessary usage and roaming charges.
Innovation Solution
The system allows mobile devices to roam by overriding default subscriber profiles using a 'New Radio (NR) as Secondary Radio Access Technology (RAT) identifier, enabling customized service access based on the user's location, allowing or denying access to specific services in different jurisdictions, thereby optimizing service selection and reducing roaming issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If 5G networks are deployed in all physical locations to provide full coverage, then coverage completeness is improved, but deployment cost and complexity increase significantly
Solution Approach 1:
The patent introduces a location determination mechanism that acts as an intermediary between the UE and network services. This mechanism determines the UE's location and uses it to select appropriate network slices, enabling full coverage service delivery without requiring physical 5G infrastructure in every location. The location-based routing functions as a virtual intermediary that connects users to appropriate network resources regardless of physical proximity to 5G cells.
Solution Approach 2:
The patent implements a universal location determination mechanism that works across multiple network types (5G, 4G/LTE, Wi-Fi) and multiple jurisdictions. This single mechanism provides multi-functional service by determining location and simultaneously routing to appropriate network slices, eliminating the need for separate deployment strategies for different coverage scenarios.
2Ease of operation
If UEs use default subscriber profiles across all jurisdictions, then profile management is simplified, but service optimization and roaming cost reduction are compromised
Solution Approach 1:
The patent transforms static default subscriber profiles into dynamic, location-aware profiles. The system automatically determines the UE's location and dynamically selects appropriate network slices based on current jurisdiction and service requirements. This dynamic adaptation optimizes service delivery without requiring manual profile management or user intervention.
Solution Approach 2:
The patent implements a feedback mechanism where the location determination result feeds back into the network slice selection process. The system continuously monitors UE location, determines the appropriate jurisdiction, and adjusts network slice selection accordingly. This closed-loop feedback enables automatic service optimization while maintaining simple profile management at the user end.
3Device complexity
If UEs roam between different jurisdictions without location-based profile customization, then network operation is simpler, but roaming charges increase and service appropriateness decreases
Solution Approach 1:
The patent performs preliminary location determination and network slice selection before actual data transmission begins. By determining the UE's location and selecting the appropriate network slice in advance, the system prepares optimized routing paths that reduce roaming charges. This preliminary action prevents costly ad-hoc routing decisions during active communication.
Solution Approach 2:
The patent changes the operational parameters of network slice selection based on location parameters. When the UE crosses jurisdictional boundaries, the system detects the parameter change and adjusts the selected network slice accordingly. This parameter-based adaptation automatically optimizes roaming routes without increasing network operation complexity.
4Ease of manufacture
If 5G cells are sparsely deployed to reduce cost, then deployment cost decreases, but coverage holes increase and service reliability deteriorates
Solution Approach 1:
The patent adds a new dimension to network coverage by introducing location-based virtual routing. Instead of expanding physical 5G infrastructure in all directions, the system uses location determination to route users through appropriate network slices that may traverse different physical infrastructures (5G, 4G/LTE, Wi-Fi). This dimensional shift from physical to virtual coverage maintains service reliability while reducing deployment costs.
Data Source
AI summary
The systems and method disclosed herein select a customized or default UE SIM profile for a registration with a particular network element in a specific jurisdiction based on the identification of the serving network element (e.g. MME, SGSN, S-CSCF). The default profile may be chosen over a particular subscriber identifier in various jurisdictions and types of networks. To implement the default profile, the subscription server may store a New Radio (NR) as a Secondary Radio Access Technologies (RAT) identifier, or “NR as a Secondary RAT” identifier, and set the value of the identifier as “ALLOW” or “DENY” of the default profile described herein.