Adaptive Beam Width Control for Mobile Beamforming Antennas
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Solution Overview
Problem
In high-frequency wireless communication systems, such as 5G, the directional nature of beamforming antennas is disrupted by user mobility, leading to unintended beam steering and reduced radio signal quality.
Innovation Solution
An electronic device with a processor and memory that identifies mobility information to adjust the beam width of its antenna elements, forming a beam with an optimal width for communication based on mobility, thereby maintaining high radio signal quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If beamforming is used to overcome radio propagation loss in high-frequency bands, then transmission and reception antenna gain is increased in a desired direction, but user mobility causes unintended beam steering and reduced radio signal quality
Solution Approach 1:
The patent applies dynamics by making the beam width adjustable based on mobility conditions. The system dynamically changes the beam width from narrow (when stationary) to wide (when moving) to adapt to different operational states. This resolves the contradiction by allowing the beamforming system to maintain high gain when needed while accommodating mobility-induced orientation changes through width adjustment rather than fixed narrow beams.
2Power
If a narrow beam width is used to increase antenna gain, then radio signal quality is improved in a specific direction, but beam steering becomes more sensitive to orientation changes during mobility
Solution Approach 1:
The system dynamically adjusts beam width based on detected mobility conditions. When the device is stationary, a narrow beam provides high gain. When mobility is detected, the beam width is automatically widened to maintain stability. This dynamic adaptation resolves the contradiction between narrow beam benefits and mobility sensitivity.
Solution Approach 2:
The patent changes the beam width parameter in response to mobility conditions. By modifying this key parameter from narrow to wide based on motion detection, the system maintains both high gain performance and adaptability to mobility, resolving the contradiction between these two requirements.
3Ease of operation
If beam orientation is compensated based on device rotation, then beam steering is corrected for static orientation changes, but beam steering remains unintended during dynamic mobility
Solution Approach 1:
The system transitions from static orientation compensation to dynamic beam width adjustment. Instead of relying solely on orientation compensation algorithms that fail during mobility, the system dynamically widens the beam when motion is detected, providing a more robust solution that maintains reliability during dynamic conditions while preserving ease of operation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution ensures stable and high-quality wireless communication by dynamically adjusting the beam width in response to user mobility, improving signal strength and range.
Implementation Method 1
Beamforming is a directional antenna technique using a plurality of antenna elements, in which a transmission and reception antenna gain may be increased in a desired direction by adjusting the phases of signals transmitted from the plurality of antenna elements.
Implementation Method 2
The electronic device may sequentially measure the radio signal qualities of all electronic device beams and use and maintain an electronic device beam having the best radio signal quality (the best electronic device beam) among the electronic device beams.
Data Source
AI summary
An electronic device comprises a first communication circuit configured to transmit at least one radio frequency (RF) signal, at least one antenna structure, electrically coupled to the first communication circuit, and including a plurality of antenna elements, at least one processor operatively coupled to the first communication circuit, and memory operatively coupled to the at least one processor. The memory stores instructions that, when executed by the at least one processor, causes the processor to perform a plurality of operation. The plurality of operations comprises identifying mobility information of the electronic device, identifying a beam width of a beam formed by at least a part of the plurality of antenna elements based on at least part of the mobility information of the electronic device, the beam being used to search for or communicate with an external electronic device, and forming the beam having the identified beam width.