IoT Reader Session Routing for Mobile Terminal Communication
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Solution Overview
Problem
Current passive internet of things technologies primarily focus on access network devices serving as readers, neglecting the potential of terminal devices to function as readers, limiting flexibility and mobility.
Innovation Solution
A communication method and apparatus enabling terminal devices to serve as readers by establishing internet of things service transmission paths through session management devices, allowing them to communicate with internet of things devices and interconnect with core network management devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If access network devices serve as readers in passive internet of things technology, then system stability and management control are improved, but device mobility and flexibility are limited
Solution Approach 1:
The patent enables terminal devices to perform dual functions: acting as both users and readers. The session management device establishes separate transmission paths for control plane data and user plane data, allowing terminal devices to function as readers while maintaining proper network management control. This multi-functionality resolves the contradiction by enabling mobility (terminal devices can move freely) while preserving stability (through dedicated management paths).
Solution Approach 2:
The patent segments the data transmission paths into control plane and user plane. The control plane path handles management and signaling between the session management device and terminal device, while the user plane path handles actual internet of things service data. This segmentation allows terminal devices to maintain mobility through flexible user plane routing while ensuring system stability through controlled management plane communication.
2Adaptability or versatility
If terminal devices serve as readers, then flexibility and mobility are improved, but network management complexity increases
Solution Approach 1:
The session management device acts as an intermediary between terminal devices serving as readers and the internet of things management device. It establishes and manages separate transmission paths for control and user plane data, abstracting the complexity of managing mobile terminal devices. This intermediary role reduces network management complexity by providing a dedicated control mechanism while maintaining terminal device flexibility.
3Productivity
If terminal devices transmit data directly to internet of things management devices, then communication efficiency is improved, but path control and routing complexity increase
Solution Approach 1:
The patent segments data transmission into two distinct paths: control plane data transmitted through the session management device for managed routing, and user plane data transmitted directly between terminal devices and internet of things management devices for efficiency. This segmentation achieves communication efficiency through direct user plane paths while maintaining routing control through the separate control plane path.
Solution Approach 2:
The patent extracts the control function from the data transmission path. Control plane data (including routing and management information) is separated and transmitted through the session management device, while user plane data (actual internet of things service data) is transmitted directly without involving the session management device. This extraction achieves efficiency for data transmission while maintaining control for management functions.
Data Source
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AI summary
This application provides a communication method and apparatus, so that a terminal device serving as a reader can communicate with an internet of things device. The method includes: A terminal device sends a session establishment request message to a session management device, to request to establish a first session for transmission of internet of things service data. The session management device establishes, to each of a user plane device and an internet of things management device, an internet of things service transmission path for transmission of the internet of things service data; or obtains address information of an internet of things management device. The session management device sends, to the terminal device, a session establishment accept message including an uplink destination address (an address of the user plane device or the internet of things management device) for transmission of the internet of things service data. When the uplink destination address of the received data is the address of the user plane device, the user plane device sends the data to the session management device. When the uplink destination address of the received data is the address of the internet of things management device, the user plane device sends the data to the internet of things management device.