UWB Node Timing Adaptation for RAT Coexistence

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Solution Overview

Problem

Existing wireless communication systems face challenges in coexisting with radio access technologies (RATs) like 4G, 5G, and 6G, as these systems can cause interference with ultra-wideband (UWB) communications.

Innovation Solution

The implementation of a method where a UWB network node determines reference timing information associated with a RAT and configures UWB signal parameters based on this information, using techniques such as repetition schemes and transmission diversity to mitigate interference.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If UWB communications operate simultaneously with RAT systems (4G, 5G, 6G) in the same wireless environment, then wireless communication coverage is extended, but interference between UWB signals and RAT signals occurs

Engineering Contradiction:

Improvecoexistence capabilityVSAvoidinterference

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The patent applies preliminary action by having the UWB network node obtain reference timing information from RAT network nodes before configuring UWB signal parameters. This advance knowledge of RAT timing allows the UWB system to pre-adjust its transmission timing, frequency, and power parameters to avoid interfering with RAT communications, thereby enabling coexistence while preventing interference

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent implements parameter changes by dynamically adjusting UWB signal parameters (timing, frequency, power) based on the obtained reference timing information from RAT systems. By changing these parameters adaptively, the UWB system can operate simultaneously with RAT systems without causing harmful interference, thus resolving the contradiction between coexistence and interference

Inventive Principle:

Principle #35Parameter changes

2Object-affected harmful factors

If UWB signal parameters are configured based on reference timing information from RAT systems, then interference is reduced, but system complexity increases

Engineering Contradiction:

Improveinterference levelVSAvoidconfiguration complexity

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The patent applies self-service by enabling the UWB network node to autonomously obtain reference timing information from RAT systems and automatically configure its own signal parameters based on this information. This self-configuration capability reduces the need for manual intervention or complex external coordination, thereby lowering operational complexity while achieving interference reduction

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The patent implements feedback by using the reference timing information obtained from RAT systems to continuously adjust and optimize UWB signal parameters. This feedback mechanism allows the UWB system to adapt to changing RAT timing conditions, maintaining low interference levels while keeping the configuration process automated and manageable

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS20250031187A1Ultra-wideband communications

Publication Date: 2025.01.23 QUALCOMM INC

AI summary

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first network node may obtain reference timing information associated with a second network node associated with a radio access technology (RAT). The first network node may communicate, in association with a set of ultra-wideband (UWB) ranging parameters, a UWB ranging signal, the set of UWB ranging parameters being based on the reference timing information. Numerous other aspects are described.