D2D Network Access for Smart Home Cellular Reliability
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Solution Overview
Problem
Smart home devices face instability and reliability issues with Wi-Fi connections, which cannot meet the high requirements for delay and reliability in data transmission, limiting their ability to communicate effectively with the Internet.
Innovation Solution
A network access method utilizing device-to-device (D2D) communication between a terminal and a smart home device, where the terminal determines a target base station based on access requirements and provides access information for the smart home device to initiate random access, allowing the device to connect to a cellular mobile network.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If smart home devices use Wi-Fi connections for Internet access, then device connectivity is achieved, but communication reliability and stability deteriorate
Solution Approach 1:
The patent introduces a terminal device as an intermediary between the smart home device and the network. The terminal device establishes a D2D communication connection with the smart home device and uses this connection to relay network access information and data, thereby improving communication reliability while maintaining network accessibility.
Solution Approach 2:
The patent enables smart home devices to access multiple types of networks (cellular mobile networks via D2D communication and Wi-Fi networks) beyond the traditional single Wi-Fi access method. This multi-functionality allows the device to adapt to different network environments and improves overall system reliability.
2Reliability
If smart home devices rely on Wi-Fi for Internet access, then simple network setup is maintained, but delay requirements and reliability standards cannot be met
Solution Approach 1:
The terminal device autonomously performs network access procedures including selecting target base stations, acquiring access information, and initiating random access processes. This self-service capability eliminates the need for complex manual configuration while ensuring reliable data transmission through cellular networks.
3Speed
If traditional Wi-Fi connections are used for smart home devices, then existing network infrastructure is utilized, but delay and reliability requirements are not satisfied
Solution Approach 1:
The patent changes the communication parameter from Wi-Fi based communication to D2D cellular communication. This parameter change enables the system to utilize cellular network infrastructure with higher reliability and faster data transmission speeds, meeting the stringent delay and reliability requirements of smart home applications.
Data Source
AI summary
The method includes that, in response to a device-to-device (D2D) communication connection being established between a smart home device and a terminal, the terminal receives access requirement information sent by the smart home device. Further, the terminal determines a target base station based on the access requirement information and sends access information for accessing the target base station to the smart home device. The smart home device initiates random access to the target base station based on the access information, such that the smart home device accesses a cellular mobile network.