Antenna Array Configuration for Base Station Interference Reduction
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Solution Overview
Problem
Interference between user equipments (UEs) in omni-directional antennas installed in base stations reduces cell throughput, and existing smart antennas lack optimal control mechanisms for antenna configuration to enhance transmission quality and data rates.
Innovation Solution
An antenna apparatus and method that includes a controller and switching unit to select and configure antenna elements based on service criteria, such as UE priority, location, or grouping, using feedback measurements to optimize directional and omni-directional services, thereby improving overall cell performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If omni-directional antennas are installed in base stations, then coverage is improved, but interference between user equipments increases and cell throughput decreases
Solution Approach 1:
The patent applies dynamics by making the antenna configuration changeable based on service requirements. The system dynamically switches between omni-directional and directional antenna configurations using a switching unit controlled by a controller, allowing the base station to adapt its radiation pattern according to UE priority, location, or grouping criteria to optimize both coverage and throughput
Solution Approach 2:
The patent applies local quality by providing different antenna configurations for different spatial regions or service requirements. High-priority UEs or UEs in specific locations receive directional beamforming for focused high-quality service, while other UEs receive omni-directional coverage, thereby optimizing overall cell throughput while maintaining adequate coverage
2Reliability
If smart antenna with antenna array is used, then transmission quality and data rate are improved, but device complexity increases
Solution Approach 1:
The patent applies parameter changes by modifying the antenna configuration parameters (beamforming weights, phase shifts, amplitude distributions) based on service criteria. The controller adjusts these parameters dynamically to provide directional services to specific UEs, improving transmission quality without requiring complex manual configuration
Solution Approach 2:
The patent applies self-service by implementing automatic antenna configuration selection based on predefined service criteria. The controller autonomously determines the appropriate antenna configuration for each UE based on factors like UE priority, location, or grouping, eliminating the need for manual intervention and reducing operational complexity
3Object-generated harmful factors
If directional antenna configuration is selected for specific UE, then interference reduction is achieved, but control mechanism complexity increases
Solution Approach 1:
The patent applies feedback by using UE feedback measurements to determine the appropriate antenna configuration. The controller receives feedback from UEs about signal quality, channel conditions, or preferred beam directions, and uses this information to select optimal directional configurations that minimize interference while keeping the control mechanism manageable through automated decision-making
Data Source
AI summary
An antenna apparatus and a method for controlling an antenna array are provided. The method includes the following steps. A plurality of selectable antenna configurations is provided for a directional service. One of the antenna configurations is selected for an antenna element of the antenna array according to a service criterion. The antenna apparatus includes an antenna array, a controller, and a switching unit. The antenna array includes a plurality of antenna elements. The controller is adapted to generate a control signal based on selecting one of a plurality of antenna configurations according to a service criterion for an antenna element to provide a directional service. The switching unit is adapted to configure each of the antenna elements according to the control signal.