UWB STS Segment Splitting for Interference-Resilient Data Throughput
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Solution Overview
Problem
Existing ultra-wideband (UWB) devices face challenges in overcoming co-channel interference from Wi-Fi and Bluetooth for higher data rates, particularly in AR/VR applications, where larger frames are prone to packet drops and errors.
Innovation Solution
The systems and methods involve segmenting a scrambled timestamp sequence (STS) into multiple frames based on payload size and link quality, transmitting these frames across time windows to enhance reliability and reduce interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If larger frames are used to increase data throughput, then higher data rates can be achieved, but packet drops and errors increase due to co-channel interference
Solution Approach 1:
The patent divides a large frame into multiple smaller sub-frames, each containing a portion of the payload and corresponding STS segments. This segmentation allows the system to maintain higher data throughput by transmitting more frames while reducing packet drops and errors through smaller, more reliable transmission units that are less susceptible to co-channel interference from Wi-Fi and Bluetooth
2Productivity
If transmission duration is extended to send larger payloads, then data throughput increases, but susceptibility to interference and packet errors increases
Solution Approach 1:
The patent segments the payload and STS into multiple smaller portions distributed across separate sub-frames. This reduces the transmission duration of each individual frame, thereby minimizing exposure to co-channel interference from Wi-Fi and Bluetooth while maintaining overall data throughput through increased frame transmission rate
Solution Approach 2:
The patent employs periodic transmission of multiple sub-frames with structured time windows and slot schedules. This periodic action allows for systematic spacing of transmissions, reducing cumulative interference exposure while maintaining sustained data throughput through regular transmission cycles
3Productivity
If more STS segments are transmitted to increase data rate, then productivity improves, but the complexity of frame management and synchronization increases
Solution Approach 1:
The patent segments the STS into multiple portions, each assigned to specific sub-frames with defined timing relationships. This structured segmentation simplifies frame management by establishing clear patterns for STS distribution and reception, reducing synchronization complexity while enabling higher data rates through increased STS transmission volume
Solution Approach 2:
The patent establishes predetermined slot schedules and time window allocations for STS segments before transmission begins. This preliminary structuring of frame management parameters simplifies real-time processing by eliminating the need for dynamic decision-making during transmission, thereby reducing device complexity while supporting high data rates
Data Source
AI summary
Systems and methods of segment splitting across frames include a first ultra-wideband (UWB) device that determines to split a scrambled timestamp sequence (STS) into at least a first portion and a second portion of the STS, for transmission to a second UWB device. The first UWB device may transmit a first frame comprising the first portion of the STS to the second UWB device. The first UWB device may transmit a second frame comprising the second portion of the STS to the second UWB device.