Wireless Communication-Sensing Slot Switching to Minimize Interference

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Solution Overview

Problem

Integrating wireless communication and wireless sensing at the same frequency band leads to adverse effects on communication systems due to the need for real-time echo signal reception in radar-based sensing, requiring high-demand transceivers.

Innovation Solution

Transmit wireless sensing signals during the switching points of wireless communication signals and receive echo signals after communication signal transmission has ended, minimizing mutual interference.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If wireless sensing and wireless communication operate at the same frequency band, then frequency resource utilization is improved, but interference between sensing and communication signals increases

Engineering Contradiction:

Improvefrequency band utilizationVSAvoidsignal interference

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The patent segments the time domain into different slots: communication slots for wireless communication signals and sensing slots for wireless sensing signals. This time-division multiplexing approach allows both functions to operate at the same frequency band while preventing signal interference by ensuring they do not transmit simultaneously.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent implements periodic switching between communication and sensing operations using a configured pattern of slots. The network device periodically alternates between transmitting communication signals and sensing signals, creating a rhythmic time-division structure that resolves the interference issue while maintaining frequency band utilization.

Inventive Principle:

Principle #19Periodic action

2Measurement precision

If radar-based wireless sensing transmits and receives signals in real time, then sensing accuracy is improved, but transceiver requirements and system complexity increase

Engineering Contradiction:

Improvesensing accuracyVSAvoidtransceiver requirements

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The patent merges the wireless communication transceiver functionality with the wireless sensing transceiver functionality into a unified system. By combining both functions in a single transceiver and using time-division multiplexing, the patent reduces the need for separate dedicated radar transceivers, thereby lowering system complexity while maintaining sensing accuracy through proper timing control.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS12628136B2Method and apparatus for integrating wireless communication and wireless sensing

Publication Date: 2026.05.12 DATANG MOBILE COMM EQUIP CO LTD

AI summary

Provided are a method and an apparatus for integrating wireless communication and wireless sensing. The method includes: transmitting, by a communication device, a wireless sensing signal in a target slot position related to a switching point between signal transmission and signal reception of a wireless communication signal; and receiving an echo signal corresponding to the wireless sensing signal in the case that a signal transmission slot of the wireless communication signal is ended.