Network Slice Selection Control Function for Service Adaptation
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Solution Overview
Problem
Current mobile network architectures are inflexible and unable to adapt to diverse service scenes, such as IoT and low latency requirements, due to their simple architecture, leading to inefficiencies in network resource management and service differentiation.
Innovation Solution
A network-slice selection method that involves obtaining and determining network-slice selection information based on policies, user subscription data, and context, allowing for flexible routing of signaling and data through a network-slice routing function entity, which includes identifiers for control plane functions, enabling precise configuration of network slices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a simple mobile network architecture with MME and gateway selection based on subscription information is used, then the network is easy to operate and maintain, but it cannot adapt to diversified service scenes such as IoT and low latency requirements
Solution Approach 1:
The patent divides the network into multiple network slices, each optimized for specific service scenes (e.g., IoT slice, low latency slice, high capacity slice). This segmentation allows different service types to have dedicated network paths and resources, improving adaptability without requiring complete architectural redesign for each service type.
Solution Approach 2:
The patent introduces dynamic network slice selection mechanisms that can adaptively route different traffic types to appropriate network slices based on real-time service requirements. This dynamic routing capability enables the network to flexibly respond to diverse service demands while maintaining a relatively stable underlying architecture.
2Productivity
If network slices are introduced to provide services similar to proprietary networks for different service scenes, then service differentiation and resource allocation are improved, but the complexity of network slice selection and management increases
Solution Approach 1:
The patent pre-configures network slices with specific characteristics and capabilities tailored to different service types. By preparing these specialized network configurations in advance, the system can quickly allocate appropriate slices to incoming traffic without performing complex real-time analysis, thus improving resource allocation efficiency while managing complexity through pre-planning.
Solution Approach 2:
The patent introduces a network slice selection function that acts as an intermediary between the core network and user equipment. This intermediary component handles the complexity of slice selection and management, shielding the rest of the network from complexity while enabling efficient resource allocation through centralized slice management.
3Adaptability or versatility
If APN-based network connection management is used, then network connectivity is established, but end-to-end service-oriented network cannot be established and services cannot be flexibly and precisely configured
Solution Approach 1:
The patent applies different network slice configurations to different service types and traffic flows, allowing each service to have optimized network characteristics (e.g., low latency for real-time services, high throughput for data-intensive services). This local quality approach enables precise service configuration without requiring complete redesign of the overall network management system.
Data Source
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AI summary
A network-slice selection method, device and system are provided. The method includes: obtaining one or more of a network-slice selection policy, user subscription information, a network-slice selection assistance parameter, and a user context by a network-slice selection control function entity; and determining network-slice selection information according to one or more of the network-slice selection policy, the user subscription information, the network-slice selection assistance parameter, and the user context by the network-slice selection control function entity, and transmitting the determined network-slice selection information to a network-slice routing function entity, so that the network-slice routing function entity performs routing for signaling or data.