Spectrum Coordination Controller for Wireless Interference Mitigation
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Solution Overview
Problem
Current wireless communication technologies lack efficient coordination for spectrum allocation between host/primary and secondary networks, leading to potential interference and suboptimal spectral usage, especially when dissimilar network technologies coexist.
Innovation Solution
A method and system that monitor communication channel allocation commands in the host/primary network to identify unused frequencies and transmit this information to secondary networks, ensuring proper synchronization and allocation to prevent interference and enhance spectral efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If secondary networks use spectrum scavenged from host/primary networks, then spectral efficiency is improved, but harmful interference to the host/primary network may occur
Solution Approach 1:
The patent implements a feedback mechanism where the host/primary network monitors spectrum usage and sends allocation commands to secondary networks. The secondary networks receive feedback about which frequencies are currently assigned or unused, allowing them to adjust their usage dynamically. This closed-loop feedback system ensures that spectral efficiency is maximized while preventing harmful interference through real-time coordination.
Solution Approach 2:
The patent introduces a spectrum coordination controller as an intermediary entity that mediates between the host/primary network and secondary networks. This intermediary monitors spectrum allocation commands, determines unused frequencies, and communicates availability to secondary networks. By acting as a mediator, it coordinates spectrum sharing to improve overall spectral efficiency while protecting the host/primary network from harmful interference.
2Productivity
If spectrum is shared between host/primary and secondary networks, then spectral efficiency is improved, but synchronization and time-aligned operations become complex
Solution Approach 1:
The spectrum coordination controller serves as a central intermediary that manages synchronization between networks. It monitors allocation commands from the host/primary network and provides coordinated information to secondary networks, centralizing the synchronization function. This approach improves spectral efficiency through coordinated sharing while managing synchronization complexity through a dedicated control entity rather than distributed peer-to-peer coordination.
Solution Approach 2:
The system performs preliminary actions by monitoring spectrum allocation commands and determining unused frequencies before assigning them to secondary networks. The spectrum coordination controller proactively identifies available spectrum and communicates it to secondary networks in advance, allowing them to synchronize their operations beforehand. This preliminary coordination reduces the complexity of real-time synchronization during actual spectrum usage.
3Device complexity
If traditional independent operation is used by co-located networks, then system complexity is reduced, but spectrum utilization becomes suboptimal
Solution Approach 1:
The patent merges the spectrum management functions of the host/primary network and secondary networks through a unified spectrum coordination controller. Instead of independent operation, the system combines monitoring, allocation determination, and coordination functions into a single integrated entity. This merging improves spectrum utilization by enabling coordinated sharing while managing complexity through consolidation rather than multiplication of independent systems.
Solution Approach 2:
The spectrum coordination controller performs multiple functions: monitoring spectrum allocation commands, determining unused frequencies, communicating availability to secondary networks, and receiving feedback. This multi-functional universal controller improves spectrum utilization across different network types while managing complexity through a single versatile system rather than separate specialized systems for each network.
Data Source
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AI summary
Disclosed are a method, wireless controller, and information processing system that define communication channel allocation. Communication channel allocation commands associated with a first network (102) are monitored. The first network (102) comprises a plurality of communication frequencies assigned by the communication channel allocation commands. A set of communication frequencies are determined that have been assigned to wireless devices (108) associated with the first network (102). A specification of unused communication frequencies within the plurality of communication frequencies are transmitted to a second network (104) in response to the determining.