NBA-MMS UWB Ranging Protocols for Low-Collision Multi-Device Cycles
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Solution Overview
Problem
Existing wireless communication systems face inefficiencies in ranging processes due to long ranging cycles that consume excessive power and are prone to collisions, especially when multiple devices are involved in one-to-many or many-to-many ranging scenarios.
Innovation Solution
Implementing narrowband assisted (NBA)-multi-millisecond (MMS) ultra wideband (UWB) protocols to facilitate shorter ranging cycles and reduce power consumption while minimizing collisions through adaptive access slots, interleaved segment transmissions, and coordinated initiator devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If traditional ranging protocols are used in one-to-many or many-to-many scenarios, then ranging functionality is provided, but ranging cycles become long and power consumption increases
Solution Approach 1:
The patent segments the ranging process into multiple access slots within a single ranging cycle, allowing multiple devices to perform ranging operations simultaneously in different time slots. This divides the traditional long ranging cycle into shorter, parallel segments, reducing overall power consumption while maintaining complete ranging functionality for multiple devices.
2Productivity
If multiple devices perform ranging in parallel, then ranging efficiency improves, but collisions between transmissions increase
Solution Approach 1:
The patent implements dynamic access slot allocation where the initiator device assigns different time slots to responder devices based on their ranging requirements. This dynamic scheduling adapts to varying traffic patterns and device priorities, allowing efficient parallel ranging while minimizing collisions through intelligent resource allocation.
Solution Approach 2:
The system incorporates feedback mechanisms where devices report their ranging status and channel conditions to the initiator. This feedback enables the initiator to adjust access slot assignments and resolve collisions dynamically, improving both ranging efficiency and reliability through iterative optimization.
3Adaptability or versatility
If adaptive access slot configurations are implemented, then resource utilization improves, but system complexity increases
Solution Approach 1:
The patent designs a universal access slot structure that can accommodate different ranging scenarios (one-to-many, many-to-one, many-to-many) using the same basic framework. The access slots are configured with flexible parameters that can be adjusted through standardized signaling, providing adaptability without requiring separate complex protocols for each scenario.
Data Source
AI summary
Embodiments are disclosed for one-to-many and many-to-many ranging using narrowband assisted (NBA)-multi-millisecond (MMS) ultra wideband (UWB) protocols. Some embodiments include an initiator device that communicates with many responder devices. For example, the initiator device can transmit a control/initialization poll message via NB signaling that identifies a ranging cycle, and transmit a first set of MMS segments corresponding to the control/initialization poll message. The initiator device can receive a plurality of report frames from two or more responder devices via NB signaling subsequent to transmitting the first set of MMS segments, and transmit within the ranging cycle, a ranging results report message based at least on the plurality of report frames via narrowband signaling.