Dynamic Spectrum Allocation for Wireless Base Stations
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Solution Overview
Problem
Existing spectrum control systems fail to significantly improve wireless communication system characteristics by temporarily allocating additional frequency bands to base stations, as they often cannot identify and utilize suitable candidate base stations that can effectively use these additional bands to enhance communication quality.
Innovation Solution
A spectrum control system that identifies base stations not meeting quality standards, extracts candidate base stations with suitable conditions, and allocates additional frequency bands to those that can utilize them effectively, including neighboring stations with communication functions, to distribute load and reduce interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If additional frequency bands are allocated to base stations to increase traffic handling capacity, then communication capacity is improved, but interference to other wireless systems increases
Solution Approach 1:
The patent implements dynamic spectrum allocation where base stations can temporarily use additional frequency bands (white spaces) when traffic demand increases. The spectrum control system continuously monitors network status and dynamically assigns unused frequency bands to base stations that need additional capacity, allowing the system to adapt traffic handling capabilities in real-time while minimizing interference through careful selection of unused bands
Solution Approach 2:
The system changes the frequency band parameter by allocating different frequency bands to different base stations based on their specific needs and location. The spectrum control system evaluates network status and assigns appropriate frequency bands from available white spaces, transforming a static frequency allocation into a dynamic, demand-driven allocation that improves capacity while managing interference
2Speed
If additional frequency bands are allocated to base stations, then transmission speed is improved, but harmful interference to licensed systems is introduced
Solution Approach 1:
The spectrum control system acts as an intermediary between base stations and frequency bands. It monitors which frequency bands are currently unused by licensed systems and intermediates the allocation of these white space bands to base stations needing higher transmission speeds. This intermediary role ensures that additional speed capacity is achieved without interfering with licensed systems, as the spectrum control system carefully selects and manages the use of unused bands
3Reliability
If spectrum control allocates additional bands to base stations, then communication quality is improved, but system complexity increases
Solution Approach 1:
The spectrum control system implements self-service mechanisms by automatically monitoring network status, identifying base stations that need additional capacity, and allocating appropriate frequency bands without manual intervention. The system autonomously evaluates traffic demand, selects suitable white space bands, and manages allocations, thereby improving communication quality while keeping operational complexity manageable through automation rather than manual spectrum management
Data Source
AI summary
A spectrum control system according to the present invention includes an identifying unit that identifies a base station or a cell that does not satisfy a predetermined level of communication quality based on information regarding a network status collected by a collecting unit that collects information regarding a network status of a wireless communication system, an extracting unit that extracts a plurality of base stations or a plurality of cells including a base station or a cell other than the identified base station or the identified cell as additional band allocating candidates, and an allocating unit that allocates an additional band to the base station or the cell that satisfies a predetermined condition among the plurality of extracted base stations or the plurality of extracted cells.