UWB Header Information Element for Interference-Free Data

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Solution Overview

Problem

Ultra-wideband (UWB) devices face challenges in efficiently transmitting data at higher rates due to co-channel interference from Wi-Fi and Bluetooth, and existing methods are limited in precision ranging and data communication, especially in AR/VR applications where accurate spatial audio and positioning are required.

Innovation Solution

The implementation of UWB devices that generate and transmit header information elements (IEs) with selected types based on data size, using condensed or full headers, and operate in frequency bands that avoid interference with Wi-Fi and Bluetooth, enabling precise ranging and data communication, and utilizing UWB transceivers to determine relative distances and orientations for enhanced AR/VR experiences.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If UWB devices transmit data at higher rates, then data throughput is improved, but co-channel interference from Wi-Fi and Bluetooth increases

Engineering Contradiction:
Improvedata throughputVSAvoidco-channel interference
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent extracts UWB operations from the crowded 2.4 GHz Wi-Fi and Bluetooth frequency bands by utilizing the 6 GHz frequency band for UWB transmissions. This frequency separation removes the harmful co-channel interference while preserving high data throughput capabilities, as UWB devices can operate at higher rates in the less congested 6 GHz spectrum without sharing the channel with Wi-Fi and Bluetooth devices.

Inventive Principle:
Principle #2Taking out (Extraction)

2Productivity

If condensed header IE is used for small data sizes, then transmission efficiency is improved, but header information completeness may be compromised

Engineering Contradiction:
Improvetransmission efficiencyVSAvoidheader information completeness
Core Design Contradiction:
ProductivityVSLoss of information

Solution Approach 1:

The header information element is segmented into two distinct types: condensed header IE and full header IE. The condensed version contains only essential fields for small data transmissions, while the full version includes complete header information for larger data sizes. This segmentation allows the system to optimize transmission efficiency for small packets while maintaining information completeness when needed, resolving the contradiction between brevity and completeness.

Inventive Principle:
Principle #1Segmentation

3Loss of information

If full header IE is used for large data sizes, then information completeness is improved, but transmission overhead increases

Engineering Contradiction:
Improveheader information completenessVSAvoidtransmission overhead
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The system dynamically selects between condensed and full header IE types based on the data size being transmitted. For small data packets, the condensed header is used to minimize overhead; for larger data packets, the full header is used to ensure completeness. This dynamic adaptation allows the system to optimize the balance between information completeness and transmission overhead for each specific transmission scenario.

Inventive Principle:
Principle #15Dynamics

4Adaptability or versatility

If UWB operates in 2.4 GHz frequency band, then compatibility with existing systems is improved, but interference from Wi-Fi and Bluetooth increases

Engineering Contradiction:
Improvesystem compatibilityVSAvoidco-channel interference
Core Design Contradiction:
Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The patent implements multi-functionality by enabling UWB devices to operate in both the 2.4 GHz and 6 GHz frequency bands. Devices can select the 6 GHz band for high-throughput data communications where interference is reduced, while maintaining the ability to use 2.4 GHz for compatibility with existing systems and for operations where frequency diversity is beneficial. This dual-band capability resolves the contradiction between compatibility and interference avoidance.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS20240235606A1Systems and methods of header information element for UWB data communication
Publication Date: 2024.07.11 META PLATFORMS TECHNOLOGIES LLC
  • US20240235606A1 patent drawing
  • US20240235606A1 patent drawing
  • US20240235606A1 patent drawing

AI summary

Systems and methods of header information element for UWB data communication may include a first device which generates a header information element (IE) for a data communication. The header IE may have a header type selected from a condensed header IE and a full header IE. The first device may transmit the header IE to a second device.