IoT Radio Access Architecture With Base Station Function Offloading
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Solution Overview
Problem
The existing 5G radio access network architecture is unable to adapt to Internet of Things (IoT) terminals, failing to meet the demands of new services and technologies such as IoT terminal services and cell-free technology.
Innovation Solution
A modified radio access network architecture is proposed, where core network functions are simplified by delegating some AMF functions to the base station and UPF functions to the base station, with enhanced reachability management, authentication, and identification capabilities, and a central UPF is established in the core network to manage connections across multiple base stations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the existing 5G core network architecture with numerous network elements (AMF, SMF, UPF) is used, then comprehensive service management functions are provided, but the network complexity increases and adaptability to IoT terminals deteriorates
Solution Approach 1:
The patent extracts and removes unnecessary core network elements (AMF, SMF, UPF) from the 5G network architecture to create a simplified network structure that is better suited for IoT terminals. This extraction principle directly addresses the contradiction by reducing network complexity while maintaining essential service management functions, thereby improving adaptability to IoT devices.
Solution Approach 2:
The patent implements a unified network architecture where remaining network elements perform multiple functions simultaneously. The base station handles both access control and data forwarding, while the data network server provides both authentication and service management. This multi-functionality approach reduces the number of specialized components needed, thereby reducing network complexity while maintaining comprehensive service capabilities for IoT terminals.
2Reliability
If comprehensive service management functions are provided through multiple network elements, then service continuity is ensured, but the need for handovers and network operations complexity increases
Solution Approach 1:
The patent merges multiple network elements into a simplified architecture where the base station and data network server perform combined functions. The base station integrates access control and data forwarding, while the data network server combines authentication and service management. This merging reduces the number of handovers needed between different network elements and simplifies network operations while maintaining service continuity through the coordinated operation of the simplified elements.
3Adaptability or versatility
If the existing 5G network architecture is used, then standard service management is provided, but the network cannot meet demands of new services like IoT terminal services and cell-free technology
Solution Approach 1:
The patent segments the network into two main functional parts: a simplified access network with base stations that handle access control and data forwarding, and a data network with servers that handle authentication and service management. This segmentation allows the network to be tailored for IoT services and cell-free technology without requiring the full complexity of the standard 5G architecture, thereby improving adaptability while reducing overall network architecture complexity.
Data Source
AI summary
Embodiments of the present disclosure provide a radio access method, an information processing method, and a network system based on Internet of Things. The method includes: connecting to a core network through an interface between the core network and an access network; and reporting at least one of the following information of an Internet of Things terminal to the core network: reachability management information, an authentication result, and an identification result. The problem that a 5G radio access network architecture is unable to adapt to Internet of Things terminals in the related art can be solved. By modifying functions performed by the core network and the access network, a modified radio access network can be applicable to access and management of the Internet of Things terminals.