IoT Device Registration via Target Device for 5G Core Access
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Solution Overview
Problem
Low-cost Internet of Things (IoT) devices, such as wearable devices, face challenges in communicating with 5G core networks due to the lack of support for existing protocol stacks, leading to increased costs and inability for the network to manage and control these devices effectively.
Innovation Solution
A target device-assisted registration method where a target device obtains policy information and an identifier of the IoT device, sending a registration request message to the core network, enabling IoT devices to register without supporting the existing NAS protocol stack, thus reducing communication costs and allowing network control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a full 3GPP UE protocol stack is supported in IoT devices, then communication reliability with the core network is improved, but device cost increases
Solution Approach 1:
The patent extracts the essential registration functionality from the complete 3GPP UE protocol stack. Instead of implementing the full protocol stack, the IoT device only implements the registration request sending capability, while the target device assists with obtaining policy information and identifiers. This selective extraction maintains core network communication reliability while significantly reducing device complexity and cost.
Solution Approach 2:
The target device serves as an intermediary between the IoT device and the core network device. It assists the IoT device by obtaining policy information and device identifiers, then forwarding registration requests to the core network. This intermediary approach allows simple IoT devices to achieve reliable core network communication without implementing complex protocol stacks.
2Device complexity
If a simplified protocol approach is used in IoT devices, then device cost is reduced, but network control capability deteriorates
Solution Approach 1:
The target device acts as an intermediary that bridges the gap between simplified IoT devices and network control requirements. It obtains policy information from the core network, retrieves device identifiers, and manages the registration process, thereby maintaining network control capability despite the IoT device's simplified protocol implementation.
Solution Approach 2:
The system implements feedback mechanisms where the target device receives policy information from the core network device, processes it, and uses it to assist the IoT device registration. The core network device receives registration requests and provides policy information, creating a closed-loop control system that maintains network management capability even with simplified endpoint devices.
Data Source
AI summary
A registration method for an Internet of Things device includes obtaining, by a target device, first policy information, where the first policy information is used for describing that an Internet of Things device is allowed to access the target device; obtaining, by the target device, an identifier of the Internet of Things device according to the first policy information; and sending, by the target device, a registration request message to a core network device, where the registration request message is used for requesting to register the Internet of Things device into the core network device, and the registration request message includes the identifier of the Internet of Things device.