GNSS Correction Data Acquisition via Cell Segmentation
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Solution Overview
Problem
Current methods for transmitting GNSS correction data to electronic terminals are inefficient, requiring significant resources and processing power as they involve broadcasting all data to terminals, which then select relevant information, leading to low efficiency and resource wastage.
Innovation Solution
An electronic terminal and server method where the terminal receives cell allocation information, determines target cells, and requests only the necessary GNSS correction data from the server, reducing data transmission and processing burdens.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the server broadcasts all GNSS correction data to all electronic terminals, then all terminals receive complete correction data, but the transmission efficiency is low and terminal processing resources are wasted
Solution Approach 1:
The patent extracts only the necessary portion of GNSS correction data by introducing cell identification information. The server determines which correction data corresponds to the terminal's current cell and transmits only that specific subset, rather than broadcasting all correction data. This extraction principle directly resolves the contradiction by maintaining data completeness for the relevant cell while eliminating unnecessary data transmission.
Solution Approach 2:
The patent segments the GNSS correction data by cell regions. Cell allocation information divides the coverage area into multiple cells, and correction data is organized and transmitted according to these cell segments. This segmentation allows the server to send only the correction data relevant to the terminal's current cell, improving transmission efficiency while ensuring the terminal receives complete data for its specific region.
2Reliability
If the terminal processes all received GNSS correction data, then the terminal ensures it has the complete data set, but the processing resources and time are excessively consumed
Solution Approach 1:
The terminal extracts only the correction data relevant to its current cell by using cell identification information to filter the received data. Instead of processing all correction data, the terminal extracts and processes only the subset corresponding to its cell, significantly reducing processing time while ensuring it has complete data for its specific region.
Solution Approach 2:
The correction data is segmented by cell regions, allowing the terminal to process only the segment relevant to its current location. This segmentation approach ensures the terminal has complete data for its cell while avoiding the time-consuming processing of data from other cells.
3Adaptability or versatility
If the server transmits all GNSS correction data to each terminal, then each terminal has access to all correction data, but the network bandwidth and server resources are excessively consumed
Solution Approach 1:
The server extracts and transmits only the correction data corresponding to the terminal's current cell, identified through cell allocation information. This extraction approach maintains the availability of complete correction data for each terminal's relevant region while dramatically reducing network bandwidth consumption and server resource usage by eliminating transmission of unnecessary data.
Solution Approach 2:
The correction data transmission is segmented by cell regions. The server transmits only the segment corresponding to the terminal's current cell, ensuring adaptability and versatility of correction data availability while minimizing network resource consumption through targeted, efficient transmission.
Data Source
AI summary
A method for acquiring GNSS correction data comprises: receiving cell allocation information from a server, wherein the cell allocation information includes information about the coverage of the cells for allocating GNSS correction data, determining target cells corresponding to an electronic terminal according to the received cell allocation information, sending a data acquisition request for acquiring GNSS correction data corresponding to the target cells to the server, and receiving GNSS correction data sent by the server in response to the data acquisition request and corresponding to the target cells from the server. The method and device for acquiring and sending GNSS correction data according to the present disclosure can enable an electronic terminal to acquire only GNSS correction da-ta corresponding to the electronic terminal, thus improving the transmission efficiency of GNSS correction data and saving the electronic terminal's resources for processing GNSS correction data.