Dual-Mode Terminal Switching Between Backscatter and Active Transmission
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Solution Overview
Problem
Existing terminal devices supporting dual-mode transmission (backscatter and active transmission) lack a method to determine the appropriate communication mode, leading to potential continuous failure and increased power consumption due to prolonged backscatter communication attempts.
Innovation Solution
A communication method and apparatus that enables a terminal device to switch from backscatter communication to active transmission when a preset condition is met, such as exceeding a maximum backscatter communication number or time, thereby reducing power consumption and ensuring successful data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the terminal device continuously performs backscatter communication, then power consumption is reduced, but transmission delay increases and transmission success rate decreases
Solution Approach 1:
The terminal device dynamically switches between backscatter communication mode and active transmission mode based on real-time channel conditions and transmission requirements. When channel conditions are good, backscatter mode is used for low power consumption; when channel conditions deteriorate or delay requirements increase, the device transitions to active transmission mode to ensure timely data delivery
Solution Approach 2:
The system changes communication parameters by switching between two distinct communication modes (backscatter and active transmission). The selection is based on parameters such as channel quality indicators, transmission delay requirements, and power consumption thresholds, allowing the device to optimize performance by adjusting its operational state
2Use of energy by moving object
If the terminal device continuously performs backscatter communication, then power consumption is reduced, but transmission success rate decreases
Solution Approach 1:
The terminal device monitors transmission feedback from the network device (such as acknowledgment signals or channel quality indicators) and uses this feedback to determine whether to continue backscatter communication or switch to active transmission mode. This feedback mechanism ensures that transmission success rate is maintained while optimizing power consumption
3Adaptability or versatility
If the terminal device supports dual-mode transmission, then communication flexibility increases, but device complexity increases
Solution Approach 1:
The terminal device is designed with multi-functionality to support both backscatter communication and active transmission modes. This universal design allows the device to adapt to different communication scenarios and requirements while maintaining a single integrated hardware architecture, reducing the need for separate specialized devices
Data Source
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AI summary
Provided are a communication method and a communication apparatus. The method comprises: a terminal device performs backscatter communication; and when a preset condition is satisfied, the terminal device switches to active transmission communication. According to the method in embodiments of the present application, the power consumption of the terminal device can be reduced while the transmission delay is ensured.