Device-Equipped Target Object for RF Sensing
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Solution Overview
Problem
Current wireless communication systems, particularly in the context of 5G, face challenges in efficiently utilizing millimeter wave (mmW) RF signals for environment sensing and communication, due to high path loss and short range limitations.
Innovation Solution
The proposed method involves a device-equipped target object that receives a radio frequency (RF) sensing signal and responds with an RF sensing response signal, enabling a sensing device to detect the presence of the target object and improve sensing accuracy and range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If mmW RF signals are used for wireless communication and sensing, then data transfer speeds and connection capacity are improved, but path loss increases and transmission range decreases
Solution Approach 1:
The patent introduces a device-equipped target object as an intermediary in the sensing process. The target object receives the RF sensing signal from the transmitter and sends back an RF sensing response signal, enabling the sensing device to detect the target object's presence and characteristics. This intermediary approach compensates for the high path loss of mmW signals by adding an active responding element in the transmission path.
2Measurement precision
If device-equipped target objects are used to improve sensing accuracy, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The target object's device serves multiple functions: it acts as both a communication device for normal wireless operations and as a sensing target that responds to RF sensing signals. By making the target object multi-functional, the system achieves improved sensing accuracy without requiring separate dedicated sensing hardware, thereby limiting the increase in overall system complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enhances the accuracy and range of wireless environment sensing by leveraging device-equipped target objects to assist in the sensing process, while also reducing power consumption and interference.
Implementation Method 1
receiving a radio frequency (RF) sensing signal from a transmitter device
Implementation Method 2
responds with an RF sensing response signal, enabling a sensing device to detect the presence of the target object
Data Source
AI summary
Disclosed are techniques for wireless environment sensing. In aspects, a device-equipped target object receives a radio frequency (RF) sensing signal from a transmitter device, the RF sensing signal configured to enable a sensing device to sense target objects in an environment of the sensing device, the target objects including the device equipped target object. The device-equipped target object transmits an RF sensing response signal to the sensing device in response to reception of the RF sensing signal. In an aspect, a sensing device receives an RF sensing response signal from a device-equipped target object, the RF sensing response signal configured to enable the sensing device to sense the device-equipped target object in an environment of the sensing device. The sensing device detects a presence of the device-equipped target object in the environment of the sensing device based at least on the RF sensing response signal.