Antenna Radiation Pattern Selection for Wireless Interference Reduction
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Solution Overview
Problem
Existing wireless communication systems, particularly in cellular networks, face challenges in determining optimal antenna radiation patterns for multiple antennas, leading to difficulties in maximizing throughput and minimizing interference between devices, especially in small cells which are not carefully designed or optimized.
Innovation Solution
An electronic device with multiple antenna elements and control logic selectively adjusts transmit and receive antenna radiation patterns based on feedback from other devices to maximize throughput and reduce interference, by modifying the schedule of subcarriers and adjusting antenna elements to steer radiation patterns, thereby optimizing communication performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple antenna radiation patterns are used to maximize throughput, then communication performance is improved, but interference between devices increases
Solution Approach 1:
The patent applies local quality by configuring different radiation patterns for different antenna elements based on their spatial locations. Each antenna element is assigned a specific radiation pattern that optimizes its coverage area, allowing the system to maximize throughput in desired directions while minimizing interference in other directions. This localized optimization resolves the contradiction between improving overall throughput and reducing interference.
Solution Approach 2:
The patent implements dynamics by dynamically selecting and adjusting radiation patterns based on real-time feedback from receiving devices. The transmitting device modifies its antenna radiation patterns in response to channel conditions and interference levels, enabling adaptive optimization of throughput while controlling interference. This dynamic adjustment allows the system to respond to changing environmental conditions and maintain optimal performance.
2Productivity
If antenna radiation patterns are optimized for specific directions, then throughput is improved, but device complexity increases
Solution Approach 1:
The patent applies feedback by implementing a closed-loop system where receiving devices send feedback information about channel quality and interference levels to transmitting devices. Based on this feedback, the transmitting devices adjust their antenna radiation patterns to optimize throughput. This feedback mechanism simplifies the coordination complexity by providing explicit guidance on pattern selection, eliminating the need for complex centralized coordination while achieving optimal performance.
3Productivity
If feedback mechanisms are implemented to select optimal radiation patterns, then communication performance is improved, but loss of time increases
Solution Approach 1:
The patent applies preliminary action by pre-configuring multiple radiation patterns for antenna elements before actual communication begins. The system prepares a set of candidate radiation patterns that cover various spatial directions and conditions. During communication, the system can quickly select from these pre-prepared patterns based on feedback, significantly reducing the time required for pattern selection and adjustment compared to generating patterns in real-time.
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
This approach enhances communication performance by maximizing throughput, reducing interference, and improving user experience by dynamically selecting and adjusting antenna radiation patterns and communication schedules in response to changing environments.
Implementation Method 1
an antenna with multiple antenna elements... transmits outgoing messages to a second electronic device using a set of transmit antenna radiation patterns... receives incoming messages from the second electronic device using a set of receive antenna radiation patterns
Data Source
AI summary
An electronic device iteratively determines an optimal transmit antenna radiation pattern and an optimal receive antenna radiation pattern based on a feedback process with a second electronic device. First, the electronic device transmits outgoing messages to the second electronic device using a set of transmit antenna radiation patterns having different transmit spatial orientations. Based on throughput feedback from the second electronic device, the electronic device selects the optimal transmit antenna radiation pattern. Then, based on throughputs for incoming messages from the second electronic device that were received using a set of receive antenna radiation patterns having different receive spatial orientations, the electronic device selects the optimal receive antenna radiation pattern. Note that the transmit antenna radiation pattern and the receive antenna radiation pattern may reduce or eliminate interference between the electronic device and the second electronic device.