Terminal Core Network Selection for 5G IoT Services
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Solution Overview
Problem
In next-generation mobile communication systems, terminals connected to both LTE and 5G core networks face challenges in selecting the appropriate core network to support specific services, as each network may not support all functions or services, leading to inefficient service provision and potential reconfiguration needs.
Innovation Solution
A method for terminals to efficiently select or reselect between the Evolved Packet Core (EPC) and 5G Core Network (CN) based on service requirements, allowing seamless switching between networks to access supported functions or services, involving the transmission of preferred CN type or slice type information and core network reconfiguration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a terminal connects to both EPC and 5G CN simultaneously, then service coverage is improved, but network complexity and selection difficulty increase
Solution Approach 1:
The patent changes the selection parameter from manual configuration to automatic determination based on service type. The terminal automatically selects EPC or 5G CN based on whether the service is eMBB, URLLC, or MTC, eliminating the need for users to manually configure network preferences and simplifying the selection process while maintaining dual-network connectivity
Solution Approach 2:
The terminal performs self-service by automatically determining which core network to use based on the service requirements. The device autonomously evaluates the service type (eMBB, URLLC, MTC) and selects the appropriate network without external intervention, reducing complexity while ensuring optimal service coverage
2Ease of operation
If manual CN selection is used, then user control is improved, but service provisioning time increases
Solution Approach 1:
The patent applies preliminary action by pre-configuring the terminal with service type information (eMBB, URLLC, MTC) and predetermined network selection rules. When a service is initiated, the terminal immediately matches the service type to the appropriate core network based on pre-established criteria, eliminating manual selection steps and reducing provisioning time while maintaining user control over service type selection
3Adaptability or versatility
If terminal always connects to 5G CN, then future-proofing is improved, but compatibility with legacy services deteriorates
Solution Approach 1:
The patent applies local quality by assigning different core networks to different service types based on their specific requirements. MTC services are directed to EPC where they have full compatibility, while eMBB services utilize 5G CN for future-proofing. This localized assignment ensures each service receives optimal network support without compromising legacy service reliability
4Adaptability or versatility
If core network reconfiguration is performed, then service suitability is improved, but service interruption occurs
Solution Approach 1:
The patent eliminates reconfiguration needs through preliminary action by having the terminal select the appropriate core network (EPC or 5G CN) before service initiation based on service type. Services like MTC are pre-assigned to EPC and services like eMBB to 5G CN, ensuring service suitability from the start without requiring post-connection reconfiguration that would cause interruptions
Data Source
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AI summary
The present invention relates to a communication technique for combining IoT technology with 5G communication systems for supporting higher data transmission rates than 4G systems, and to a system therefor. The present disclosure can be applied, on the basis of 5G communication technology and IoT-related technology, to intelligent services such as smart homes, smart buildings, smart cities, smart cars or connected cars, health care, digital education, retail business, security- and safety-related services. The present invention relates to a method for configuring temporal ordering of uplinks in a wireless communication system, more specifically, in 3GPP 5G New Radio (NR).