Small Cell Base Station Power Adjustment for Interference Control
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Solution Overview
Problem
The increasing density of network nodes in wireless communication systems leads to interference between small cells, which hampers network performance and increases power consumption, posing a challenge to operators while ensuring high-quality service for users.
Innovation Solution
A method and system for adjusting the transmission power of small cells based on load state and surrounding cell power, allowing for dynamic adjustment of transmission power to minimize interference and optimize service quality, including real-time detection and power requests between cells.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the density of network nodes is increased to improve data rate and coverage, then the data rate and coverage of hot spots are improved, but the interference between nodes increases and power consumption increases
Solution Approach 1:
The patent implements dynamic adjustment of transmission power for small cells based on real-time load conditions and surrounding cell power levels. The small cell controller continuously monitors the load state and adjusts the transmission power dynamically, transitioning from static power settings to adaptive power control, thereby resolving the contradiction between maintaining high data rates and reducing interference.
Solution Approach 2:
The patent changes the transmission power parameter of small cells based on load state and surrounding cell conditions. By adjusting the power parameter dynamically rather than maintaining fixed high power, the system achieves both high data rates when needed and reduced interference when load is low, directly addressing the technical contradiction.
2Area of stationary object
If the density of network nodes is increased to improve coverage, then the coverage of hot spots is improved, but the power consumption increases
Solution Approach 1:
The system implements dynamic power adjustment where small cells transition between different power states based on real-time load conditions. When load is low, power is reduced to minimize consumption; when load increases, power is raised to maintain coverage quality, thereby resolving the contradiction between coverage and power consumption.
Solution Approach 2:
The transmission power parameter is changed dynamically based on load state monitoring. The small cell controller adjusts the power parameter to match actual service demands, avoiding continuous high power consumption while maintaining adequate coverage, thus resolving the contradiction between coverage area and energy usage.
3Object-affected harmful factors
If small cells are turned off to reduce interference and power consumption, then interference and power consumption are reduced, but service quality for existing users deteriorates
Solution Approach 1:
Instead of statically turning off small cells, the patent implements dynamic power adjustment where cells remain active but operate at reduced power levels when load is low. This dynamic approach maintains service availability for existing users while still reducing interference and power consumption, resolving the contradiction between reliability and harmful factors.
Solution Approach 2:
The transmission power parameter is adjusted continuously based on load conditions rather than using binary on/off states. This parameter change strategy allows the system to maintain adequate service quality by keeping power above minimum thresholds while reducing interference, thus resolving the contradiction between service reliability and interference reduction.
4Reliability
If transmission power is increased to ensure high quality service for users, then service quality is improved, but interference with other small cells increases
Solution Approach 1:
The patent adjusts the transmission power parameter based on both local load conditions and surrounding cell power levels. By changing the power parameter adaptively rather than using fixed high power settings, the system achieves high service quality when needed while minimizing interference with neighboring cells, directly resolving this technical contradiction.
Data Source
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AI summary
The present disclosure provides a method for adjusting transmission power of a small cell, a system for adjusting transmission power of a small cell, and a small cell. The method for adjusting transmission power of a small cell includes: acquiring transmission power of other small cells when downlink data needs to be transmitted; and adjusting transmission power for transmitting the downlink data according to a load state of the small cell and the transmission power of the other small cells. According to the technical solution of the present disclosure, the interference between the small cell and the other small cells can be effectively avoided while high quality service for loads is ensured.