Antenna Array Vertical Tilting Angle Optimization
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Solution Overview
Problem
Existing communication systems face challenges in optimizing system throughput due to limitations in vertical antenna tilting, which affects the propagation of radio waves in very high frequency bands.
Innovation Solution
A communication device equipped with an antenna array capable of forming multiple vertical beams and a processor that determines optimal vertical tilting angles based on Inter-Beam Interference (IBI), allowing for flexible adjustment of beamforming to maximize system throughput.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single vertical beam is used for transmission, then the device complexity is low, but the system throughput is limited due to inability to serve multiple users simultaneously
Solution Approach 1:
The patent divides the single transmission beam into multiple vertical beams (first vertical beam and second vertical beam) that can be formed simultaneously. Each beam serves different user groups located at different vertical positions, enabling spatial multiplexing and increasing system throughput without requiring complex multi-user MIMO processing
2Productivity
If vertical antenna tilting is applied to maximize throughput, then system throughput is improved, but Inter-Beam Interference (IBI) increases between multiple vertical beams
Solution Approach 1:
The patent implements a feedback mechanism where the processor determines optimal vertical tilting angles for each beam by considering the IBI generated by other beams. The SINR calculation incorporates interference from other vertical beams, and this information feeds back into the tilting angle optimization process, creating an iterative optimization that balances throughput maximization with interference mitigation
Solution Approach 2:
The patent dynamically adjusts the vertical tilting angle parameter for each beam based on calculated SINR values that consider inter-beam interference. By changing the tilting angle parameter optimally for each beam, the system maximizes throughput while minimizing the harmful IBI effect between simultaneously transmitted vertical beams
Data Source
AI summary
Disclosed are a communication device for performing beamforming and an operating method thereof. The communication device includes: an antenna array configured to simultaneously form a first vertical beam and a second vertical beam for an arbitrary time; a transceiver configured to transmit and receive a signal using a double beam including the first vertical beam and the second vertical beam; and a processor configured to determine a first optimal vertical tilting angle of the first vertical beam based on Inter-Beam Interference (IBI) of the second vertical beam, and determine a second optimal vertical tilting angle of the second vertical beam based on the IBI of the first vertical beam.