AIoT Data Transmission via UE Relay for Cellular Coverage
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Solution Overview
Problem
Existing RFID technologies have limited coverage areas, making it difficult to support large-scale cellular network deployment and seamless coverage for a large quantity of AIoT devices.
Innovation Solution
Implementing a data transmission method and apparatus that utilize a 3GPP air interface and AIoT links for communication between user equipment, network side devices, and AIoT devices, including a transceiver module to facilitate AIoT data transmission through a simplified protocol stack architecture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If RFID backscatter communication technology is used, then data transmission between electronic tag and reader is supported, but coverage area is limited and cannot support large-scale cellular network deployment
Solution Approach 1:
The patent introduces user equipment (UE) as an intermediary node that assists AIoT devices in transmitting data to the network. The UE receives data from AIoT devices via AIoT links and forwards it to the network side device, thereby extending the coverage area and enabling large-scale deployment without requiring direct connection between AIoT devices and the network infrastructure
Solution Approach 2:
The patent makes the UE serve multiple functions: it acts as both a terminal device for 3GPP air interface communication and as a relay node for AIoT data transmission. This multi-functionality allows the same UE to support both conventional cellular communication and AIoT backscatter communication, enhancing system versatility and coverage
2Device complexity
If traditional RFID architecture is used, then simple communication is achieved, but protocol stack complexity increases when integrating with 3GPP air interface for AIoT
Solution Approach 1:
The patent segments the protocol stack into distinct parts: the 3GPP air interface protocol stack for UE-network communication and the AIoT protocol stack for AIoT device-UE communication. This segmentation allows each protocol stack to be optimized independently while maintaining overall system simplicity and clarity
Solution Approach 2:
The UE serves as an intermediary that handles protocol conversion and data forwarding between the 3GPP air interface and AIoT links. By placing the protocol complexity management at the UE level, the patent simplifies the overall system architecture while maintaining adaptability to both communication interfaces
Data Source
AI summary
A data transmission method includes performing, by UE, at least one of the following in an AIoT protocol stack architecture; receiving, by the UE over a 3GPP air interface or a first AIoT link, AIoT data sent by a network side device, sending, by the UE, the AIoT data to the network side device over the 3GPP air interface or the first AIoT link, sending, by the UE, the AIoT data to an AIoT device over a second AIoT link, and receiving, by the UE over the second AIoT link, the AIoT data sent by the AIoT device. The network side device includes a base station and a core network device, and the AIoT data includes AIoT signaling and service-related data.