Dynamic Interference Control for Macro Small Cell Signaling
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Solution Overview
Problem
Current methods for cooperative interference control between macro cells and small cells in wireless communication systems face challenges in achieving high-speed and low-latency signaling, which is necessary for effective interference management, and may not consistently deliver desirable communication performance due to varying small cell configurations and interference control arrangements.
Innovation Solution
A communication control device and system that includes a performance acquisition unit to measure communication performance on signaling paths, a selection unit to choose an appropriate interference control scheme based on the measured performance, and an interference control unit to transmit control signals to the small cell base station, allowing flexible switching between different interference control schemes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cooperative interference control methods are implemented between macro cell and small cell, then interference management capability is improved, but signaling latency increases and communication performance becomes unstable
Solution Approach 1:
The patent implements dynamic selection between two interference control schemes based on real-time signaling performance evaluation. The system transitions from static interference control to dynamic adaptation, choosing between direct small cell-to-small cell signaling (low latency) and macro cell-relayed signaling (high reliability) according to current network conditions, thereby resolving the contradiction between speed and reliability
Solution Approach 2:
The system changes the signaling path parameter dynamically by evaluating communication performance metrics (success rate, latency) and selecting different interference control schemes accordingly. When performance exceeds thresholds, the system switches to faster direct signaling; otherwise, it uses more reliable macro cell-relayed signaling, thus optimizing the trade-off between latency and reliability
2Loss of time
If direct small cell-to-small cell signaling is used for interference control, then signaling latency is reduced, but reliability decreases when communication performance is poor
Solution Approach 1:
The macro cell serves as an intermediary relay node when direct small cell-to-small cell signaling performance is insufficient. The system introduces the macro cell as a mediator to forward interference control signals, ensuring reliable delivery even when direct paths are poor, thus maintaining reliability without permanently sacrificing latency efficiency
3Device complexity
If interference control schemes are fixed in advance, then system complexity is reduced, but adaptability to different network conditions deteriorates
Solution Approach 1:
The system implements dynamic scheme selection based on real-time evaluation of signaling performance metrics. Instead of fixing the interference control scheme in advance, the system adapts its behavior according to current network conditions, automatically choosing between direct and relayed signaling paths to optimize both simplicity and adaptability
Solution Approach 2:
The system performs self-evaluation of communication performance and self-selection of appropriate interference control schemes without requiring complex external control. Each small cell autonomously monitors signaling success rates and latency, then independently decides which scheme to use, reducing overall system complexity while maintaining high adaptability
Data Source
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AI summary
Provided is a communication control device including a performance acquisition unit that acquires a parameter indicating communication performance on a signaling path of a base station of a small cell that at least partially overlaps with a macro cell in a wireless communication system, a selection unit that selects an interference control scheme for controlling interference between the macro cell and the small cell, based on the parameter acquired by the performance acquisition unit, and an interference control unit that transmits an interference control signal to the base station of the small cell in accordance with the interference control scheme selected by the selection unit.