UWB Ranging Test Time Slot Allocation

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Solution Overview

Problem

Existing UWB ranging performance testing methods are inefficient due to the need for one-to-one interactions between control terminal devices and devices to be tested, leading to low testing efficiency and potential interference between multiple devices tested simultaneously.

Innovation Solution

A UWB ranging performance testing method and system that allows a control terminal device to send test request signal messages with distributed communication time slots to multiple devices to be tested, enabling them to return response signal messages in their respective time slots, thus avoiding interference and improving testing efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If one-to-one interaction between control terminal device and device to be tested is used, then testing accuracy is maintained, but testing efficiency deteriorates

Engineering Contradiction:
Improvetesting accuracyVSAvoidtesting efficiency
Core Design Contradiction:
Measurement precisionVSProductivity

Solution Approach 1:

The patent segments the communication process by dividing the time domain into distinct time slots for different devices. Each device to be tested is assigned a specific time slot to communicate with the control terminal device, allowing multiple devices to be tested simultaneously without interfering with each other. This time-division multiplexing approach enables parallel testing while maintaining the accuracy that would otherwise require sequential one-to-one interactions.

Inventive Principle:
Principle #1Segmentation

2Productivity

If multiple devices to be tested interact simultaneously with control terminal device, then testing efficiency is improved, but interference between devices occurs

Engineering Contradiction:
Improvetesting efficiencyVSAvoidinterference between devices
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent implements periodic action by organizing device communications into distinct time slots that repeat in a periodic pattern. Each device is assigned specific time slots for transmission and reception, creating a structured periodic communication schedule. This ensures that multiple devices can operate simultaneously in an organized manner, improving efficiency while preventing interference through temporal separation of their communication activities.

Inventive Principle:
Principle #19Periodic action

Data Source

PatentUS12342193B2UWB ranging performance testing method, system, device and storage medium
Publication Date: 2025.06.24 BEIJING XIAOMI MOBILE SOFTWARE CO LTD
  • US12342193B2 patent drawing
  • US12342193B2 patent drawing
  • US12342193B2 patent drawing

AI summary

A UWB ranging performance testing method is disclosed in which a control terminal device sends a test request signal message to multiple devices to be tested. The test request signal message includes communication time slots distributed by the control terminal device to multiple devices to be tested. Communication time slots of different devices to be tested are different. All devices to be tested return the response signal message for UWB ranging performance testing in their respective corresponding communication time slots.