Frequency Resource Management Server with Location-Based Recalculation Threshold
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing frequency management systems face significant calculation burdens due to frequent recalculation of frequency resource allocation when communication device location information changes, especially in environments with multiple moving devices or varying positioning accuracy.
Innovation Solution
A management server and communication device system that creates and updates list information on frequency and transmission power based on location, with a re-creation judging unit determining whether to re-create this information based on location changes and a step size, thereby reducing unnecessary recalculation by reusing previous calculations when changes are minor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If frequency resource management recalculation is performed every time location information changes, then communication quality is maintained, but calculation burden becomes enormous
Solution Approach 1:
The patent changes the parameter of recalculation triggering from every location update to only when location change exceeds a threshold value. The management server compares the difference between current and previous location information, and only performs frequency resource management recalculation when this difference exceeds a predetermined threshold, thereby reducing unnecessary calculations while maintaining communication quality.
Solution Approach 2:
The patent applies partial action by performing recalculation only when necessary (when location change exceeds threshold) rather than continuously. This selective approach reduces the calculation burden by avoiding redundant recalculations when location changes are minor and do not significantly impact communication quality.
2Measurement precision
If frequency resource management is performed frequently, then frequency resource allocation accuracy is improved, but server operational burden increases
Solution Approach 1:
The patent introduces a threshold parameter for location change detection. The management server compares the magnitude of location change against this threshold parameter, and only triggers recalculation when the parameter exceeds the threshold. This maintains allocation accuracy for significant movements while reducing server burden for minor fluctuations.
3Speed
If recalculation is performed for every location update, then frequency resource management responsiveness is improved, but calculation time increases
Solution Approach 1:
The patent performs partial recalculation only when location change exceeds the threshold, avoiding unnecessary calculation time for minor updates. This maintains responsiveness for significant location changes while reducing overall calculation time by skipping redundant computations during minor movements.
Data Source
AI summary
A mechanism which enables management of frequency resources while suppressing a calculation amount under an environment where location information of a communication device changes. A management server including: a creating unit to create list information; an acquiring unit to acquire a step size relating to transmission power setting of the communication device; a re-creation judging unit to judge whether or not to re-create the list information based on first location information when the list information has been created last time, second location information to be judged and the step size; and a notification unit to notify the communication device which uses the list information, of the re-created list information in a case where it is judged to re-create the list information and the list information created last time in a case where it is judged not to re-create the list information.