Radio Frequency Fingerprint Database Grid Segmentation
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Solution Overview
Problem
Conventional wireless networks face limitations in network optimization and performance improvement due to the lack of refined information in radio frequency fingerprint databases, which only record inter-system handover attempts and successes at a grid level, affecting their application range and effectiveness.
Innovation Solution
A method and apparatus for creating a radio frequency fingerprint database by dividing cells into grids based on grid indexes and historical data from terminals, performing neighbor cell information statistics, and generating an effective database for improved radio resource management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If radio frequency fingerprint database only records inter-system handover attempts and successes at grid level, then database structure is simple, but application range and effectiveness are reduced
Solution Approach 1:
The patent segments the grid level handover statistics into more granular dimensions by introducing terminal identification and grid identification as separate key fields. This allows the database to store handover information at multiple levels (cell level, grid level, terminal level) while maintaining a structured format that doesn't excessively complicate the overall database structure.
Solution Approach 2:
The patent adds new dimensions to the existing database structure by incorporating terminal ID, grid ID, and detailed handover statistics as separate fields. This dimensional expansion enables the database to store richer information about terminal behavior patterns without fundamentally redesigning the entire database architecture.
2Quantity of substance
If radio frequency fingerprint database only records inter-system handover attempts and successes at grid level, then data storage is minimal, but application effect is reduced
Solution Approach 1:
The patent segments handover data into distinct records for each terminal and grid combination, storing individual handover attempts, successes, and failure reasons. This segmentation allows the system to store detailed information that improves application effectiveness while keeping the storage structure organized and manageable.
Solution Approach 2:
The patent incorporates feedback mechanisms by storing handover failure reasons and success indicators, enabling the system to analyze what causes handover failures and optimize future handover decisions. This feedback-rich data structure significantly improves application effect despite increased storage requirements.
3Device complexity
If processing is based on cell granularity, then processing is simple, but network optimization requirements cannot be met
Solution Approach 1:
The patent segments the cell into multiple grids and further into terminal-specific records within each grid. This segmentation enables the system to perform differentiated processing for different grids and terminals while maintaining a systematic approach that doesn't excessively complicate the processing logic.
Solution Approach 2:
The patent applies local quality by storing and processing handover information specifically for each terminal in each grid, allowing the system to optimize network performance for specific terminal-grid combinations rather than treating all terminals uniformly across the entire cell.
4Ease of manufacture
If radio frequency fingerprint database lacks refined information, then database creation is simple, but terminal-specific wireless communication characteristics cannot be accurately handled
Solution Approach 1:
The patent performs preliminary actions by pre-defining the database structure with fields for terminal ID, grid ID, handover attempts, successes, and failure reasons before actually storing the data. This pre-structured approach simplifies the data collection process while ensuring that terminal-specific characteristics are captured with high precision.
Data Source
AI summary
The present disclosure provides a method for radio frequency fingerprint database creation, a method for radio frequency fingerprint database application, a device, a centralized processing device and a base station. During creating a radio frequency fingerprint database, neighbor cell information statistics is performed on each of a plurality of neighbor cells of the cell in each of the plurality of divided grids, and an effective radio frequency fingerprint database corresponding to the cell is generated according to a result of the dividing and a result of the neighbor cell information statistics.