Wireless Base Station Spot Removal for Inter-Beam Interference
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Solution Overview
Problem
Conventional technologies fail to provide effective coverage optimization for base stations with array antenna configurations in 5G wireless communication systems, as they are unable to optimize coverage in smaller virtual cell units using adjustments to transmitted power and antenna tile angles.
Innovation Solution
A control apparatus that obtains reception quality information from terminal devices for directional beams and determines whether to remove specific spots irradiated by the base station, allowing for optimized coverage by adjusting beam formation and reducing inter-beam interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional coverage optimization methods (adjusting transmitted power and antenna tile angle) are used for base stations with array antenna configurations, then the optimization can be performed using existing techniques, but the coverage cannot be optimized in smaller virtual cell units (spots) formed by directional beams
Solution Approach 1:
The invention segments the base station's coverage area into multiple directional beams, each forming a virtual cell or spot. The control apparatus manages each spot independently by determining whether to remove specific spots based on reception quality information, enabling precise coverage optimization at the spot level rather than at the entire cell level.
Solution Approach 2:
The invention introduces dynamic spot management where the control apparatus continuously receives reception quality information from terminal devices and dynamically determines whether to remove spots. This dynamic adjustment allows the coverage optimization to adapt to changing channel conditions and terminal locations, making the system versatile for array antenna configurations.
2Ease of operation
If the base station uses array antenna configuration with beamforming, then directional coverage can be formed, but conventional optimization parameters (transmitted power, antenna tile angle) are insufficient for optimizing individual spots
Solution Approach 1:
The invention implements a feedback mechanism where the control apparatus receives reception quality information from terminal devices for each directional beam. Based on this feedback, the control apparatus determines whether to remove specific spots, creating a closed-loop control system that simplifies the operation of beamforming while maintaining precise spot-level optimization.
Solution Approach 2:
The control apparatus autonomously determines whether to remove spots based on received reception quality information without requiring manual intervention. The system self-adjusts the coverage by automatically making removal decisions, reducing operational complexity while maintaining ease of beamforming operation.
3Extent of automation
If manual operator adjustment is used for coverage optimization, then simple control procedures can be used, but automation and network stability improvement cannot be achieved
Solution Approach 1:
The invention enables self-optimization where the control apparatus automatically receives reception quality information from terminal devices and independently determines whether to remove spots. This automated process eliminates the need for manual operator intervention while implementing coverage optimization, achieving both automation and network stability improvement.
Solution Approach 2:
The system implements automated feedback-based optimization where reception quality information flows from terminal devices to the control apparatus, which then automatically makes spot removal decisions. This feedback loop enables self-optimization without manual intervention, achieving automation while managing implementation complexity through a clear decision-making framework.
Data Source
AI summary
A control apparatus for wireless communication system includes: a communication unit to obtain, from a base station, information indicating reception quality, at a terminal device, of a signal transmitted on a directional beam from the base station; and a processing unit to determine whether to remove a spot on the basis of the information obtained by the communication unit, the spot being an area irradiated with a directional beam from the base station. If the processing unit determines that the spot is to be removed, the communication unit sends an instruction to remove the spot to the base station or to a master base station of the base station.