Augmented Memory Module for 3D Angle of Arrival Adaptability
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Solution Overview
Problem
Existing electronic devices face challenges in accurately determining the three-dimensional field of view (FoV) of a target device due to environmental factors and UWB signal impairments, leading to inaccurate angle of arrival (AoA) and range measurements.
Innovation Solution
The implementation of an augmented memory module (AMM) that enables a FoV classifier to learn and adapt to environments, using encoded information from a memory module to improve the accuracy of FoV detection by reducing false positives and enhancing stability in AoA outputs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If UWB signals are used for determining AoA and range, then positioning capability is improved, but measurement precision deteriorates due to signal corruption and environmental factors
Solution Approach 1:
The system performs preliminary actions by collecting training data in advance for different environments and pre-training the neural network classifier. The augmented memory module stores environment-specific training data that is prepared beforehand, allowing the system to quickly adapt when entering a new environment without requiring real-time learning, thus maintaining measurement precision while preserving positioning capability.
Solution Approach 2:
The system implements feedback mechanisms where the neural network classifier continuously receives measurement data and adjusts its predictions based on environmental conditions. The augmented memory module provides feedback by storing and retrieving environment-specific patterns, allowing the system to learn from past measurements and improve AoA and range determination accuracy in response to signal corruption and environmental interference.
2Measurement precision
If environmental adaptability is improved through learning mechanisms, then detection accuracy is improved, but device complexity increases
Solution Approach 1:
The system segments the learning function into a dedicated augmented memory module that is separate from the main processor. The neural network classifier is implemented as a distinct component that interfaces with the augmented memory module, allowing the complex learning operations to be isolated and managed independently. This segmentation reduces overall device complexity by organizing the adaptive learning system into modular, manageable components.
Solution Approach 2:
The augmented memory module serves as an intermediary between the environment and the neural network classifier. It stores environment-specific training data and provides it to the classifier, acting as a buffer that simplifies the interaction between the complex learning mechanism and the rest of the system. This intermediary structure reduces device complexity by abstracting the learning process into a dedicated memory-based interface.
3Reliability
If false positive rates are reduced through adaptive learning, then reliability is improved, but loss of time increases due to learning and adaptation processes
Solution Approach 1:
The system performs preliminary learning actions by pre-collecting training data and pre-training the neural network classifier for various environments before actual operation. The augmented memory module stores this pre-processed environment-specific data, allowing the system to rapidly adapt to new environments without extensive real-time learning, thus reducing the time loss while maintaining high detection reliability.
Solution Approach 2:
The system implements dynamic adaptation where the neural network classifier can quickly switch between pre-trained environment models stored in the augmented memory module. When the environment changes, the system dynamically selects or updates the appropriate model without requiring complete retraining, balancing the need for high reliability with minimized adaptation time through flexible, on-the-fly model switching.
Data Source
AI summary
A method includes obtaining signal information based on wireless signals received from a target electronic device via a first antenna pair and a second antenna pair. The first and second antenna pairs are aligned along different axes. The signal information includes channel information, range information, a first angle of arrival (AoA) based on the first antenna pair, and a second AoA based on the second antenna pair. The method also includes obtaining tagging information that identifies an environment in which the electronic device is located. The method also includes generating encoded information from a memory module based on the tagging information. The method further includes initializing a field of view (FoV) classifier based on the encoded information. Additionally, the method includes determining whether the target electronic device is in a FoV of the electronic device based on the FoV classifier operating on the signal information.


