Switching between active amplification transmission mode and passive transmission mode of a backscattering transmission

A semi-active backscattering transmission system dynamically switches between passive and active modes to balance coverage and energy consumption, enhancing data throughput and battery life by using a processor-controlled device with energy storage.

WO2026032647A1PCT designated stage Publication Date: 2026-02-12SONY GROUP CORP +1
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Patent Information

Application Number
PCT/EP2025/070490
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-08-07
Filing Date
2025-07-17
Publication Date
2026-02-12

AI Technical Summary

Technical Problem

Conventional wireless radio transmission methods consume significant battery power due to the use of active components, while passive backscattering transmission has limited coverage, and semi-active methods increase energy consumption for extended range.

Method used

Implement a semi-active backscattering transmission that dynamically switches between passive and active amplification modes based on criteria such as required communication range and data rate, using a device with a processor to manage transmission modes and an energy storage for amplification.

Benefits of technology

Balances coverage and energy consumption by selectively activating the active amplification mode when needed, optimizing data throughput and extending battery life.

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    Figure EP2025070490_12022026_PF_FP_ABST
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Abstract

One or more control messages (4040) are associated with a backscattering transmission (190). The one or more control messages are indicative of a switching point (970, 5130, 5230, 5330, 5430) at which a backscattering node (105) of the backscattering transmission (190) switches from a first transmission mode (871, 872) of the backscattering transmission (190) to a second transmission mode (871, 872) of the backscattering transmission (190).
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Citation Information

Patent Citations

  • Hybrid backscatter communication

    WO2024056530A1

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    EP4580225A1

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    US20090146785A1

  • Systems, devices, and methods for providing power-proportional communication

    US20190173543A1

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    US20230378807A1