White Space Device Spectrum Update Optimization
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Solution Overview
Problem
The existing methods for updating and using white spaces in communication technologies often result in low service signal quality and signal interruptions due to the need for frequent switching between available white spaces, which is inefficient and affects the quality of service.
Innovation Solution
A method and system that allow a white space device to intelligently manage white space updates by acquiring feature information of the current white space, querying a spectrum database, and configuring the white space for continued use if available, or switching to another available white space if necessary, thereby optimizing the spectrum update usage process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the white space device performs a complete spectrum usage request each time the white space needs to be updated, then the white space device can obtain available white spaces from the spectrum database device, but the white space device is forced to switch to configuring and using another white space, causing low service signal quality and signal interruption
Solution Approach 1:
The spectrum database device performs preliminary actions by storing feature information of available white spaces and proactively pushing updates to the white space device when white space availability changes. This eliminates the need for the white space device to perform complete spectrum usage requests and forced switching, thereby maintaining service signal quality while simplifying the update process.
Solution Approach 2:
The system implements a feedback mechanism where the spectrum database device monitors white space availability and actively pushes update notifications to the white space device. This feedback loop ensures the white space device receives real-time information about white space availability without needing to repeatedly query, thus avoiding service interruptions and maintaining high signal quality.
2Productivity
If the spectrum database device allocates available white spaces to the white space device, then the white space device can use the white space to increase bandwidth resources, but not all available white spaces are listed, causing the spectrum database device to need to switch to configuring and using another white space
Solution Approach 1:
The spectrum database device is designed with multi-functionality, serving both as a passive responder to spectrum usage requests and as an active pusher of white space availability updates. This universal approach ensures complete listing of available white spaces while maintaining service continuity, resolving the contradiction between maximizing bandwidth utilization and ensuring reliable service delivery.
Solution Approach 2:
The feedback mechanism ensures that the white space device receives comprehensive information about all available white spaces. The spectrum database device pushes updates whenever white space availability changes, ensuring the white space device can fully utilize available bandwidth resources without experiencing service interruptions due to incomplete information.
3Loss of information
If the white space device queries the spectrum database device for white space availability, then the white space device can obtain spectrum resource information, but a complete spectrum usage request needs to be performed each time, causing loss of time and reducing efficiency
Solution Approach 1:
The spectrum database device performs preliminary actions by maintaining an up-to-date database of white space availability and proactively pushing updates to the white space device. This eliminates the need for repeated complete spectrum usage requests, ensuring complete spectrum resource information is obtained while significantly reducing the time required for white space updates.
Solution Approach 2:
The feedback mechanism where the spectrum database device pushes real-time updates to the white space device ensures complete spectrum resource information is transmitted efficiently. This approach maintains information completeness while minimizing update time, as the white space device receives notifications only when actual changes occur rather than performing repeated queries.
Data Source
AI summary
The present invention provides a method for updating a white space spectrum, an access device and a communication system, where the method performed by the access device includes: acquiring feature information of a white space spectrum, wherein the white space spectrum is currently used by the access device for communicating with a terminal, and the feature information comprises information about a bandwidth and a central frequency of the white space spectrum; sending an update request that comprises the feature information to a spectrum database device; and communicating with the terminal by using the white space spectrum identified by the feature information when a response for the update request from the spectrum database device indicates that the white space spectrum is available. The present invention optimizes a process of updating a white space spectrum.