UWB Ranging Coexistence Using Location-Based Interference Mitigation
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Solution Overview
Problem
The challenge of channel interference between ultra-wideband (UWB) devices and wireless telecommunication devices operating in the same frequency band, leading to lost data and inefficient ranging sessions, is addressed by implementing interference mitigation processes based on location and session initiation signaling.
Innovation Solution
Network entities perform interference mitigation processes when UWB devices initiate ranging sessions or are within a threshold distance, reducing interference in the shared frequency band used for UWB and cellular communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If UWB devices and wireless telecommunication devices operate in the same frequency band, then spectrum utilization is improved, but channel interference increases
Solution Approach 1:
The network entity performs location determination and identifies potential interference scenarios before UWB ranging sessions occur. By proactively determining device locations and predicting interference conditions in advance, the system can prepare mitigation strategies before actual interference degrades UWB communication performance
Solution Approach 2:
The system continuously monitors device locations, ranging session status, and interference conditions. Based on this feedback, the network entity dynamically adjusts interference mitigation processes, such as configuring transmission gaps or adjusting power levels, to maintain optimal coexistence between UWB and cellular devices in real-time
2Reliability
If interference mitigation processes are implemented based on location and session signaling, then UWB packet loss is reduced, but network entity processing complexity increases
Solution Approach 1:
UWB-enabled devices autonomously determine their locations using existing positioning mechanisms and self-initiate ranging sessions without continuous network intervention. The devices also autonomously report session status to the network entity, reducing the processing burden on the network while maintaining reliable interference mitigation
Solution Approach 2:
The network entity pre-configures interference mitigation parameters and thresholds based on historical data and service requirements. When devices report their locations and session status, the network entity can quickly apply pre-determined mitigation strategies rather than calculating optimal parameters in real-time, reducing processing complexity while maintaining reliability
Data Source
AI summary
Certain aspects of the present disclosure provide techniques for the coexistence of wireless telecommunication devices (e.g., 4G, 5G, and/or 6G devices) and UWB devices operating in a same frequency band. A method generally includes receiving, from a first user equipment (UE), first signaling indicating an initiation of a first ultra-wideband ranging session between the first UE and an ultra-wideband device; determining a location of the first UE after receiving the first signaling; and performing one or more first interference mitigation processes configured to reduce channel interference in a first ultra-wideband channel used for the first ultra-wideband ranging session based on, at least, the location of the first UE.