UE Core Network Selection Based on CIoT Feature Support
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently selecting between Enhanced Packet Core (EPC) and 5G Core (5GC) networks for Cellular Internet of Things (CIoT) devices, particularly in determining and steering UEs to the most suitable core network based on available features and load conditions, leading to suboptimal resource utilization and user experience.
Innovation Solution
The implementation of a mechanism in user equipment (UE) to determine required CIoT features, indicate capabilities to the core network, and select between EPC and 5GC for establishing a wireless connection based on supported features, allowing for dynamic network selection and load balancing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If UE connects to EPC network, then backward compatibility and existing CIoT feature support is maintained, but access efficiency and new service capabilities are limited
Solution Approach 1:
The system dynamically selects between EPC and 5GC core networks based on UE capability matching. The network selection is not static but adapts to the specific CIoT features required by each UE, allowing the system to optimize for either reliability (EPC for legacy features) or productivity (5GC for enhanced services) depending on the scenario.
Solution Approach 2:
The patent changes the selection parameter from arbitrary or load-based to capability-based matching. By evaluating whether the core network supports the specific CIoT features required by the UE (such as control plane optimization, user plane optimization, header compression), the system selects the most appropriate network, thereby resolving the contradiction between reliability and productivity.
2Productivity
If UE connects to 5GC network, then access efficiency and new service capabilities are improved, but compatibility with legacy CIoT features may be compromised
Solution Approach 1:
The system dynamically determines which core network to access based on the specific CIoT features required by the UE. When legacy feature compatibility is needed, EPC is selected; when enhanced services are required, 5GC is selected. This dynamic approach ensures both productivity and reliability are optimized according to actual needs.
Solution Approach 2:
The patent introduces capability matching as the selection parameter, evaluating whether the core network supports the specific CIoT features required by the UE. This parameter change ensures that 5GC is only selected when it can meet the feature requirements, thereby maintaining reliability while achieving productivity improvements.
3Productivity
If core network selection is based on load balancing, then network resource utilization is improved, but feature-specific optimization is lost
Solution Approach 1:
The patent changes the selection parameter from load-based to capability-based matching. Instead of arbitrarily selecting networks based on load conditions, the system evaluates whether the core network supports the specific CIoT features required by the UE. This ensures feature-specific optimization while still considering overall system efficiency.
Data Source
AI summary
Systems, apparatuses, methods, and computer-readable media are provided for a user equipment (UE) of a wireless communication system. The UE includes a processor circuitry, and radio front end circuitry coupled to the processor circuitry. The processor circuitry is configured to determine and indicate, to a core network via a radio access network (RAN), one or more cellular internet of things (CIoT) features that are required by the UE and CIoT network behavior expected from the core network to support the one or more CIoT features that are required by the UE. The processor circuitry is configured to select either an enhanced packet core (EPC) or a 5G core (5GC) to establish a wireless connection with the core network, based on a first set of CIoT features supported by the EPC and a second set of CIoT features supported by the 5GC received from the core network.