Antenna Sector Azimuth-Tilt Optimization for Interference Control
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Solution Overview
Problem
Existing telecommunication networks face interference issues between mobile broadband systems and other systems like satellite systems, leading to coverage loss and inefficient antenna adjustments that do not adequately balance interference and coverage.
Innovation Solution
A method to determine optimal azimuth and tilt values for antenna sectors by simulating broadcast interference and shortlisting combinations that meet interference and coverage thresholds, ensuring sufficient transmission power.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the tilt and azimuth of the antenna are adjusted to reduce interference, then interference is reduced, but coverage loss occurs for a location
Solution Approach 1:
The patent applies parameter changes by systematically varying both tilt and azimuth parameters across multiple combinations to find the optimal balance between interference reduction and coverage maintenance. Instead of adjusting only one parameter, the method evaluates a matrix of tilt-azimuth combinations to identify the pair that simultaneously achieves acceptable interference levels and sufficient coverage for target locations.
Solution Approach 2:
The patent introduces a new dimension of optimization by considering both tilt and azimuth parameters simultaneously rather than optimizing one while fixing the other. This two-dimensional parameter space allows for a more comprehensive search of the solution space, enabling the identification of antenna configurations that balance interference and coverage requirements that would not be achievable through single-parameter adjustment.
2Object-affected harmful factors
If the transmission power is lowered to reduce harmful interference to another system, then interference to another system is reduced, but the service quality for the target location deteriorates
Solution Approach 1:
The patent applies parameter changes by adjusting the transmission power parameter to different levels and evaluating the impact on both interference to other systems and service quality to target locations. The method identifies optimal power levels that satisfy both constraints, rather than simply minimizing power or using maximum power.
Solution Approach 2:
The patent introduces dynamics by enabling the transmission power to be adjusted dynamically based on the specific tilt and azimuth configuration and the resulting interference and coverage characteristics. This allows the system to adapt power levels to the actual operational conditions rather than using fixed power settings.
3Reliability
If the azimuth and tilt are set based only on target service location and desired coverage level, then coverage requirement is met, but interference to other systems is not adequately considered
Solution Approach 1:
The patent adds another dimension to the optimization problem by incorporating interference considerations into the azimuth and tilt selection process. Instead of optimizing only for coverage, the method evaluates multiple tilt-azimuth combinations against both coverage requirements and interference constraints, effectively adding a second optimization dimension that balances both objectives.
Solution Approach 2:
The patent applies parameter changes by systematically varying the azimuth and tilt parameters to identify configurations that satisfy both coverage requirements and interference constraints. This multi-parameter optimization allows the system to find solutions that would not be achievable through single-parameter adjustment.
Data Source
AI summary
A method, apparatus, and system for sector interference countermeasures may be provided and may include, generating a list of azimuth and tilt values which may provide service to a target location for an NG sector of a site; and determining an optimal azimuth and tilt value with the lowest interference threshold and sufficient coverage, wherein determining comprises: simulating broadcast to determine interference based on each combination from the list of azimuth and tilt values; shortlisting the list of azimuth and tilt values based on the determined interference; and selecting the optimal azimuth and tilt value from the shortlisted list of azimuth and tilt values which has transmission power greater than or equal to a transmission power threshold value