Communication method and communication device
By generating a signal using a spread spectrum sequence to power environmental devices and performing backscatter modulation, the problem of power signal design in wireless fidelity systems is solved, achieving zero-power communication and meeting the needs of extreme environments and low-cost IoT devices.
Patent Information
- Application Number
- PCT/CN2024/117581
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-09-06
- Publication Date
- 2026-03-12
AI Technical Summary
In wireless fidelity systems, how to design the waveform of the power supply signal or carrier signal to support the normal use of environmentally powered devices, especially to achieve communication in extreme environments and low-cost, low-maintenance IoT devices.
The signal generated by the spread spectrum sequence is used to provide energy to environmental power supply equipment and to perform backscatter modulation. The spread spectrum technology is used to transmit the signal in a wide frequency band. Combined with energy harvesting and backscatter communication technology, zero-power communication is achieved.
It enables communication of low-cost, low-maintenance IoT devices without batteries in extreme environments, improves device miniaturization and communication reliability, and reduces device complexity and cost.