Antenna Array Beamforming via Geometric Property Exchange
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Solution Overview
Problem
Current wireless communication systems face challenges in optimizing beamforming for wireless links due to variations in antenna array properties between different devices, which affect communication efficiency and performance, especially in millimeter wave communications.
Innovation Solution
The method involves exchanging information related to the geometric properties of antenna arrays, such as inter-antenna element spacings, between wireless nodes to determine an optimal operating frequency for beamforming, allowing devices to select the best frequency based on their specific array geometries and performance objectives.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wireless communication systems use fixed beamforming configurations, then device complexity is reduced, but communication performance deteriorates due to variations in antenna array properties between different devices
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting beamforming parameters (such as beam width, direction, and frequency) based on the specific antenna array properties of each device. The system determines optimal beamforming parameters by considering device-specific characteristics like antenna element spacing and array geometry, thereby improving communication performance without requiring complex reconfiguration of the entire beamforming system.
Solution Approach 2:
The patent implements preliminary action by pre-determining optimal operating frequencies and beamforming parameters based on antenna array properties before actual communication occurs. The system performs initial characterization of device antenna properties and pre-calculates suitable beamforming configurations, so that when communication begins, the optimized parameters are already in place, improving performance without adding real-time complexity.
2Reliability
If wireless systems optimize beamforming for each device's specific antenna properties, then array gain and spherical coverage are improved, but beam management latency increases
Solution Approach 1:
The patent reduces beam management latency by performing preliminary determination of optimal operating frequencies and beamforming parameters based on antenna array properties. By pre-calculating these parameters before communication sessions begin, the system avoids time-consuming real-time optimization during active communication, thus maintaining high array gain while minimizing time loss.
Solution Approach 2:
The patent implements feedback mechanisms where devices exchange information about their antenna array properties and performance metrics. This feedback loop allows the system to learn from actual communication performance and refine beamforming parameter selections, improving array gain over time while reducing the need for frequent re-optimization and associated latency.
3Reliability
If wireless communication systems exchange detailed antenna array property information between nodes, then beamforming optimization is improved, but information overhead and processing complexity increase
Solution Approach 1:
The patent applies the extraction principle by selectively determining and exchanging only the most critical antenna array property information needed for beamforming optimization. Rather than transmitting complete detailed specifications of antenna arrays, the system extracts and communicates key parameters such as optimal operating frequencies and essential geometric properties, reducing information overhead while maintaining beamforming optimization effectiveness.
4Speed
If wireless systems use millimeter wave frequencies for high-speed communication, then data transmission rate is improved, but communication reliability deteriorates due to sensitivity to antenna array property variations
Solution Approach 1:
The patent addresses millimeter wave communication challenges by dynamically adjusting beamforming parameters based on device-specific antenna array properties. The system determines optimal beam widths, directions, and frequencies tailored to each device's antenna characteristics, which compensates for the sensitivity of millimeter wave signals to environmental and hardware variations, thereby maintaining high data transmission rates while improving communication reliability.
Solution Approach 2:
The patent improves millimeter wave communication reliability through preliminary determination of optimal operating parameters based on antenna array properties. By pre-configuring beamforming settings before high-speed data transmission begins, the system ensures that the communication link is optimized for the specific hardware characteristics, reducing the impact of millimeter wave sensitivity issues while maintaining high data rates.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless node may transmit, to another wireless node, information related to one or more properties of a first antenna array associated with the wireless node. The wireless node may receive, from the other wireless node, information related to one or more properties of a second antenna array associated with the other wireless node. The wireless node may communicate with the other wireless node over a wireless link using one or more beams associated with an operating frequency, wherein the operating frequency is based at least in part on the one or more properties of the first antenna array and the one or more properties of the second antenna array. Numerous other aspects are described.