User Equipment Positioning Assistance Data Management
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Solution Overview
Problem
Mobile and wearable devices face energy and computational intensity in acquiring, processing, and managing positioning assistance data, particularly due to limited resources such as storage, power, and bandwidth, which hampers efficient and accurate location determination.
Innovation Solution
User equipment manages and filters positioning assistance data by obtaining subsets relevant to specific devices based on their capabilities, usage patterns, and preferences, providing them periodically or automatically, reducing the need for frequent data requests and minimizing resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If each wearable device acquires its own positioning assistance data from a server, then the device has access to necessary positioning information, but the energy consumption and computational load increase significantly
Solution Approach 1:
The patent combines the assistance data acquisition and management functions into a single user equipment device that serves multiple wearable devices. This consolidation allows the UE to download assistance data once and distribute it to multiple wearables, reducing redundant network transmissions and processing operations across the system, thereby lowering overall energy consumption while maintaining positioning accuracy for each device
Solution Approach 2:
The user equipment performs preliminary acquisition and processing of positioning assistance data before the wearable devices need it. The UE downloads, stores, and prepares the assistance data in advance, then provides it to wearable devices when requested. This eliminates the need for each wearable to perform energy-intensive downloads and processing operations, significantly reducing their energy consumption while ensuring accurate positioning data is available
2Measurement precision
If wearable devices download and store positioning assistance data, then positioning accuracy improves, but storage requirements and bandwidth usage increase
Solution Approach 1:
The patent implements local quality by providing different subsets of positioning assistance data to different wearable devices based on their specific characteristics, capabilities, and positioning needs. The user equipment analyzes each wearable's requirements and delivers only the relevant portion of assistance data, ensuring each device receives sufficient data for accurate positioning without unnecessary data that would consume valuable storage space
Solution Approach 2:
The assistance data is segmented into different subsets tailored to individual wearable devices. Instead of providing complete assistance data sets to all wearables, the system divides and distributes customized portions to each device based on their specific positioning requirements, capabilities, and current context, optimizing the balance between positioning accuracy and storage utilization
3Reliability
If assistance data is frequently updated to maintain accuracy, then positioning reliability improves, but the complexity of data management and energy consumption increase
Solution Approach 1:
The user equipment autonomously manages the assistance data lifecycle including downloading, storing, updating, and distributing data to wearable devices without requiring complex coordination or manual intervention. The UE monitors data freshness, determines when updates are needed, and automatically refreshes assistance data for wearables, simplifying the overall system architecture while maintaining high positioning reliability through timely data updates
Data Source
AI summary
Disclosed is an apparatus and method for managing assistance data by user equipment. The method may include obtaining positioning assistance data from a server. The method may also include generating, from the obtained positioning assistance data, at least one first subset of positioning assistance data based, at least in part, on positioning capabilities and/or positioning preferences associated with a first device. Furthermore, the method may include transmitting the first subset of positioning assistance data to the first device.