UWB Ranging Parameter Updates for Changing Channel Conditions
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Solution Overview
Problem
Narrowband assisted ultra-wideband multi-millisecond (NBA-UWB MMS) ranging sessions face reduced measurement performance due to long-term operating parameters that do not adapt to changing channel conditions between initiator and responder devices.
Innovation Solution
A communication method that sets specific parameter sets for individual measurement cycles based on current channel conditions, including narrowband PHY parameters and UWB MMS ranging configuration parameters, to optimize ranging efficiency and reduce interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If long-term operating parameters are used for multiple measurement cycles, then device complexity is reduced and ease of operation is improved, but measurement precision deteriorates when channel conditions change
Solution Approach 1:
The patent implements dynamic parameter adjustment by introducing a parameter update mechanism that allows ranging parameters to be modified for each measurement cycle based on current channel conditions. The initiator device determines whether to update parameters by comparing channel conditions before and after the measurement cycle, and selectively applies updated parameters from the responder device's suggestion, transforming the static long-term parameter configuration into a dynamic adaptive system.
Solution Approach 2:
The patent directly applies parameter changes by enabling the responder device to suggest optimized ranging parameters based on its observation of channel conditions, and allowing the initiator device to adopt these suggested parameters for subsequent measurement cycles. This mechanism enables systematic parameter adjustments in response to changing environmental conditions, improving measurement precision through adaptive parameter optimization.
2Measurement precision
If parameters are dynamically adjusted for each measurement cycle, then measurement precision is improved under varying channel conditions, but device complexity increases
Solution Approach 1:
The patent segments the parameter management process into distinct functional components: the initiator device determines whether parameter updates are needed by evaluating channel condition changes, while the responder device provides suggested parameter optimizations. This segmentation distributes the complexity burden across both devices and separates the decision-making logic from the parameter adjustment execution, making the overall system more manageable despite the dynamic nature of parameter updates.
Solution Approach 2:
The patent implements a feedback mechanism where the responder device monitors channel conditions and provides feedback in the form of suggested parameter optimizations to the initiator device. The initiator device uses this feedback to make informed decisions about whether to update parameters for the next measurement cycle. This feedback loop enables adaptive parameter adjustment without requiring either device to independently analyze all possible parameter combinations, thereby managing complexity through structured information exchange.
3Productivity
If long-term operating parameters are applied to all measurement cycles, then ease of operation is maintained, but productivity decreases due to reduced ranging efficiency under changing conditions
Solution Approach 1:
The patent applies partial action by implementing selective parameter updates rather than requiring parameter reconfiguration for every measurement cycle. The initiator device evaluates channel condition changes and only triggers parameter updates when necessary, avoiding unnecessary configuration complexity while still capturing the performance benefits when conditions change. This partial application of dynamic parameter adjustment maintains operational simplicity while improving ranging efficiency when needed.
Data Source
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AI summary
This application relates to a communication method and a communication apparatus, and may be applied to a UWB-based wireless personal area network system. The communication apparatus supports the 802.15 series protocols and the 802.11 series protocols. The communication method includes: sending a first poll frame, where the first poll frame is for triggering ranging measurement in a first range-measurement cycle, the first poll frame further indicates a first parameter set that takes effect in the first range-measurement cycle, and the first parameter set includes one or more of the following parameters: a first narrowband physical layer PHY parameter, a first narrowband channel allow list, a first ranging block structure parameter, or a first ultra-wideband UWB multi-millisecond MMS ranging configuration parameter; and receiving a response frame of the first poll frame. According to this application, an initiator uses a poll frame to indicate a parameter set that takes effect in a current range-measurement cycle. Compared with a conventional manner of setting a ranging session configuration parameter that takes effect in a plurality of range-measurement cycles, this application helps set a ranging session configuration parameter more applicable to the current range-measurement cycle.