UWB Ranging Measurement Report Message Size Reduction
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Solution Overview
Problem
There is a need for an efficient method to transmit messages for determining distances between electronic devices using ranging technology, particularly in IoT environments where existing methods are inefficient.
Innovation Solution
An operating method for ultra-wideband (UWB) communication systems that involves a target device transmitting and receiving data efficiently by using a measurement report message with reduced size, including round-trip time and reply time information, allowing devices to calculate time-of-flight values and determine distances effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a complete measurement report message including all ranging information is transmitted, then measurement precision is improved, but message size increases transmission time and reduces efficiency
Solution Approach 1:
The patent extracts and transmits only the essential ranging information elements (round-trip time and reply time) in the measurement report message, omitting redundant data. This extraction principle reduces message size while preserving the core functionality needed for distance calculation, thereby decreasing transmission time without significantly compromising measurement precision.
Solution Approach 2:
The patent implements partial action by transmitting a subset of potentially available ranging information rather than complete data sets. The measurement report includes only the critical time measurements necessary for distance determination, applying partial action to optimize the balance between information completeness and transmission efficiency.
2Measurement precision
If detailed ranging information is included in the measurement report message, then measurement precision is improved, but device complexity increases due to larger message processing requirements
Solution Approach 1:
The patent applies extraction by identifying and including only the essential ranging parameters (round-trip time and reply time) in the measurement report message. This selective inclusion reduces the complexity of message processing while maintaining sufficient information for accurate distance calculation, thereby resolving the contradiction between measurement precision and device complexity.
3Reliability
If comprehensive ranging data is transmitted in the measurement report, then reliability of distance measurement is improved, but transmission efficiency decreases due to larger message size
Solution Approach 1:
The patent extracts and transmits only the critical time measurement data (round-trip time and reply time) required for reliable distance calculation. This extraction approach maintains measurement reliability by including essential information while improving transmission efficiency through reduced message size, effectively resolving the identified contradiction.
Solution Approach 2:
The patent implements partial action by transmitting a minimal sufficient set of ranging information rather than comprehensive data. This partial transmission includes exactly what is needed for reliable distance measurement (time stamps for calculation) while excluding redundant information, thereby optimizing transmission efficiency without sacrificing measurement reliability.
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 method reduces the size of the measurement report message, enhancing transmission efficiency and accuracy in determining distances between electronic devices, thereby improving ranging performance in IoT applications.
Implementation Method 1
an operating method of a first target device for transmitting/receiving data through an ultra-wideband (UWB) in a wireless communication system
Data Source
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AI summary
Provided, according to one embodiment of the present disclosure, is an operation method of a first target device for transmitting/receiving data through an ultra wideband (UWB) in a wireless communication system. The first target device may: receive a ranging start message from an electronic device; transmit, to the electronic device, a response message for the ranging initiation message; and receive, from the electronic device, a measurement report message including time information which has been measured by the electronic device on the basis of response messages of a plurality of target devices including the first target device. In addition, the first target device may: determine, on the basis of the measurement report message, time information of the first target device, for determining a distance to the electronic device; and determine the distance from the electronic device by using the time information of the first target device.