UWB-Guided Narrowband Channel Allocation for Ranging and Data Transfer

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Solution Overview

Problem

There is a need for an efficient method to provide wireless communication services in IoT environments, particularly for accurate distance measurement and data communication between devices using ultra-wide band (UWB) technology.

Innovation Solution

A method and device for narrow band (NB) resource allocation using UWB communication, involving UWB devices that perform ranging, transmit NB resource allocation information, and establish data communication in configured NB channels.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If UWB channel is used for both ranging and data communication, then device complexity is reduced, but communication efficiency deteriorates due to channel contention and interference

Engineering Contradiction:

Improvechannel management complexityVSAvoidcommunication efficiency

Core Design Contradiction:

Device complexityVSProductivity

Solution Approach 1:

The patent segments the communication resources by introducing separate UWB channels for ranging operations and NB channels for data communication. This division allows ranging and data transmission to occur simultaneously without interfering with each other, thereby improving communication efficiency while maintaining manageable device complexity through clear channel assignment protocols.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent introduces NB channels as intermediary communication paths for data transmission, while UWB channels are dedicated to ranging functions. This intermediary approach allows the system to leverage the precise ranging capabilities of UWB while using NB channels for efficient data communication, resolving the conflict between channel versatility and communication performance.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Productivity

If NB channel is introduced for data communication, then communication efficiency is improved, but device complexity increases due to dual-channel management

Engineering Contradiction:

Improvedata communication efficiencyVSAvoiddual-channel management complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The patent merges the functionality of UWB and NB channels at the device level, where each device is equipped with both UWB transceivers for ranging and NB transceivers for data communication. This merging allows seamless operation across both channel types while maintaining a unified device architecture, thereby improving communication efficiency without proportionally increasing overall device complexity.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The patent performs preliminary channel assignment and resource allocation before actual communication occurs. The system pre-configures which devices use which NB channels based on ranging results and communication requirements, thereby simplifying real-time channel management and reducing the operational complexity of handling multiple channels during active communication.

Inventive Principle:

Principle #10Preliminary action

3Measurement precision

If ranging is performed in UWB channel before data communication, then distance measurement accuracy is improved, but communication delay increases

Engineering Contradiction:

Improvedistance measurement accuracyVSAvoidcommunication setup time

Core Design Contradiction:

Measurement precisionVSLoss of time

Solution Approach 1:

The patent implements periodic ranging updates at predetermined intervals rather than requiring ranging before every data transmission. This periodic approach maintains accurate distance measurement information while significantly reducing the time loss associated with frequent ranging operations, allowing data communication to proceed efficiently between periodic ranging updates.

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

The patent performs ranging operations in advance and caches the distance measurement results for subsequent data communication sessions. By preliminarily establishing the ranging information and storing it for reuse, the system avoids repeating the ranging process before each communication event, thereby maintaining measurement accuracy while minimizing communication setup delays.

Inventive Principle:

Principle #10Preliminary action

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

Enables efficient data communication by effectively operating UWB and NB channels, facilitating accurate ranging and data transfer between UWB devices.

Implementation Method 1

it is possible to use a ranging technique for measuring the distance between electronic devices using ultra-wide band (UWB)

Methodology Applied

Scientific EffectTime of flight: Time of Flight

Data Source

PatentEP4709006A1Narrow band resource allocation method and device using ultra wide band communication

Publication Date: 2026.03.11 SAMSUNG ELECTRONICS CO LTD

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AI summary

The present disclosure discloses a method for operating an ultra wide band (UWB) channel and a narrow band (NB) channel together. A method of a first UWB device, according to various embodiments of the present disclosure, may comprise the steps of: performing ranging in a UWB channel; transmitting a packet including NB resource allocation information to a second UWB device, in the UWB channel or a NB channel controlling the UWB channel; and performing data communication with the second UWB device, in a first NB channel configured on the basis of the NB resource allocation information. Other various embodiments are possible.