Dynamic Map Label Prioritization for Wireless Devices
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Solution Overview
Problem
Wireless communications devices face inefficiencies in downloading and displaying map labels due to limited bandwidth and processing capabilities, particularly at higher zoom levels and when moving rapidly, leading to inefficient use of bandwidth and processing resources.
Innovation Solution
A method for dynamically downloading label data based on label data size and density, using a label prioritization scheme that considers the device's current position and movement, to minimize data transmission and processing demands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If all label data is downloaded to the wireless device, then complete map labeling is achieved, but bandwidth consumption increases significantly
Solution Approach 1:
The patent extracts and downloads only the most important label data from the complete set of available labels. By identifying and separating critical labels (those necessary for navigation and orientation) from non-critical labels, the system downloads minimal data while preserving essential map functionality, thus reducing bandwidth consumption without complete loss of labeling information.
Solution Approach 2:
The patent applies different quality levels to different regions of the map by prioritizing label downloads based on their importance and relevance to the current view. Critical areas receive higher quality labeling data, while less important areas receive reduced or no labeling, creating a non-uniform distribution of label quality that optimizes bandwidth usage while maintaining navigational utility.
2Loss of information
If all label data is downloaded, then comprehensive map labeling is achieved, but processing resource usage increases
Solution Approach 1:
The system extracts and processes only the most important label data rather than all available labels. By identifying critical labels based on navigational importance and downloading only those, the processing load on the wireless device is significantly reduced while maintaining sufficient map labeling for navigation purposes.
Solution Approach 2:
The patent applies partial action by downloading and processing a subset of label data that is sufficient for navigation rather than the complete set. This partial downloading approach provides adequate labeling functionality without the excessive processing resources required to handle all available label data.
3Speed
If label data is downloaded rapidly for high velocity movement, then map updates keep pace with device movement, but bandwidth consumption increases
Solution Approach 1:
The system extracts and downloads only critical label data that is essential for maintaining navigation functionality during high-velocity movement. By prioritizing labels along the current path and nearby areas while omitting less important labels, the system achieves adequate map update speed without proportionally increasing bandwidth consumption.
Solution Approach 2:
The patent applies partial action by downloading a selective subset of label data sufficient for high-velocity navigation rather than complete label sets. This approach provides adequate map update speed for fast movement while avoiding the excessive bandwidth consumption that would result from downloading all available labels at the same rate.
Data Source
AI summary
Map labels are dynamically downloaded to a wireless communication device for efficiently labelling a map displayed on the device. A method of dynamically downloading map labels to a wireless communications device includes steps of determining a size of label data for an area of interest and dynamically downloading the label data for the area of interest based on the size of the label data. Optionally, map labels can be dynamically downloaded based on a label prioritization scheme that takes into account the current position of the device. Optionally, the size of the label data can be determined from a map data index.