Spectrum Coordination Device for Wireless Interference Management
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Solution Overview
Problem
In wireless communication systems, secondary systems face challenges in efficiently using spectrum resources without interfering with each other due to independent allocation by different spectrum management devices, leading to suboptimal resource utilization and interference issues.
Innovation Solution
A spectrum coordination device allocates and modifies spectrum resources across coexistence groups, generating spectrum modification information to ensure that secondary systems use resources effectively without interference, by considering usable spectrum resources from other systems and adjusting transmission power to meet coexistence management requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If spectrum management devices independently allocate spectrum resources to secondary systems on any frequency band, then secondary systems can access spectrum resources flexibly, but global optimization is not considered resulting in interferences between secondary systems and reduced spectrum efficiency
Solution Approach 1:
A coordination device is introduced as an intermediary between spectrum management devices and secondary systems. The coordination device receives spectrum usage information from multiple spectrum management devices, performs global optimization calculations, and generates coordinated spectrum allocation results. This mediator enables both flexible spectrum access (by allowing secondary systems to use any available band) and global optimization (by coordinating allocations across all systems to prevent interference).
Solution Approach 2:
The patent combines the functions of multiple independently operating spectrum management devices into a unified coordination framework. By merging their spectrum usage information and allocation decisions through the coordination device, the system achieves global optimization while maintaining the flexibility of individual spectrum access. The coordination device consolidates allocation results from all managed secondary systems to ensure efficient spectrum utilization.
2Quantity of substance
If multiple secondary systems occupy certain frequency bands independently, then each system can use available spectrum resources, but the frequency band may not be able to accommodate new secondary systems due to lack of coordination
Solution Approach 1:
The coordination device implements a feedback mechanism where spectrum usage information from all secondary systems is continuously collected and monitored. Based on this feedback, the coordination device dynamically adjusts spectrum allocations to accommodate new secondary systems while preventing over-occupation of frequency bands. This feedback loop ensures both high resource utilization and the ability to expand the system by adding new secondary users.
3Ease of operation
If different spectrum management devices allocate spectrum resources relatively independently, then each device can manage its secondary systems autonomously, but global optimization is not considered leading to interference between systems
Solution Approach 1:
The coordination device serves as a mediator that preserves autonomous management while preventing interference. Each spectrum management device continues to operate independently, managing its secondary systems autonomously. However, the coordination device receives their allocation decisions, performs global optimization to identify potential interferences, and generates coordinated results that all devices implement. This maintains operational simplicity while eliminating harmful interference.
4Ease of operation
If secondary systems use spectrum resources without coordinated allocation, then spectrum access is simplified, but continuous spectrum resources may not be available for all secondary systems
Solution Approach 1:
The coordination device performs preliminary optimization actions by pre-calculating coordinated spectrum allocations before secondary systems actually use the resources. It analyzes all spectrum management devices' requirements and pre-arranges allocations that ensure continuous spectrum availability. This preliminary coordination simplifies the actual access process while guaranteeing resource continuity, as systems can directly implement pre-coordinated allocations without complex real-time negotiations.
Data Source
AI summary
A spectrum coordination device is used in a wireless communication system that includes a first coexisting system and a second coexisting system, the first coexisting system comprises a spectrum coordination device and one or more sub-systems divided into coexisting groups, the second coexisting system comprises one or more sub-systems, and the spectrum coordination device includes a processing circuit, which is configured to generate spectrum modification information used for modifying spectrum resources of the sub-systems in the first coexistence system and/or for modifying spectrum resources of the sub-systems in the second coexistence system when coexistence management requirements of the first coexistence system are not satisfied. By using the spectrum device, wireless communication system, wireless communication method and storage medium according to the present disclosure, spectrum resources can be reasonably allocated to the sub-systems, so as to make more effective use of resources without mutual interference among the sub-systems.