Backscatter Channel Measurement via Reader Intermediary
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Backscatter communication devices lack the capability to perform channel measurement, leading to uncertainty in channel quality and poor communication reliability.
Innovation Solution
A measurement processing method and apparatus that obtain measurement configuration information and perform channel measurement on a backscatter communication channel, using a transmission channel for a backscatter signal and/or a reference signal to trigger a first backscatter signal for measurement purposes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If backscatter communication devices are used to reduce power consumption and costs, then energy efficiency is improved, but channel measurement capability is lost leading to poor communication reliability
Solution Approach 1:
The patent introduces a reader device as an intermediary that performs channel measurement on behalf of the backscatter communication device. The reader sends reference signals to the backscatter device, receives the modulated signals, and conducts the measurement processing, thereby enabling channel quality assessment without requiring measurement capabilities in the power-constrained backscatter device itself
Solution Approach 2:
The backscatter communication device utilizes the incident reference signal from the reader to generate the backscatter signal automatically, without requiring additional power for signal generation. The device passively modulates the incident signal by adjusting its impedance, thereby achieving communication functionality while maintaining ultra-low power consumption
2Device complexity
If backscatter communication devices lack channel measurement capability, then device complexity is reduced, but channel quality uncertainty arises
Solution Approach 1:
The reader device serves as an intermediary that collects and processes channel quality information. By centralizing the measurement functionality in the reader, the backscatter device remains simple while the system as a whole gains channel quality awareness through the reader's measurement and reporting capabilities
Data Source
AI summary
This application provides a measurement processing method and apparatus, and a device. The measurement processing method includes: obtaining, by a first device, measurement configuration information; and performing, by the first device, channel measurement on a backscatter communication channel based on the measurement configuration information. The backscatter communication channel includes at least one of the following: a transmission channel for a backscatter signal; or a transmission channel for a reference signal. The reference signal is used to trigger a first backscatter signal, and the first backscatter signal is used for channel measurement.