Dynamic OAM Transceiving Array Selection for Mobile Links
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Solution Overview
Problem
The challenge in OAM communication systems is the selection of optimal transceiving arrays, which is influenced by the distance between the receiver and transmitter, especially in mobile and multi-modal scenarios, leading to inefficiencies.
Innovation Solution
A method for determining a transmission/reception array in OAM systems involves sequentially transmitting reference signals from multiple arrays, receiving index information, and selecting the optimal array based on signal quality, ensuring consistent optimal transmission and reception even in mobile scenarios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed transceiving array is used in OAM communication system, then the system structure is simple, but the communication performance degrades in mobile and multi-modal scenarios due to changing distances and positions
Solution Approach 1:
The patent implements dynamic array selection by switching between different concentric circular arrays (first, second, and third concentric circular arrays) based on real-time communication conditions. The system dynamically determines which array to use for transmission and reception, allowing adaptation to changing distances and mobile scenarios rather than using a fixed array configuration.
Solution Approach 2:
The patent changes the geometric parameters of the array configuration by utilizing multiple concentric circular arrays with different radii and spatial arrangements. This allows the system to adjust the physical parameters of the transceiving array according to communication requirements, optimizing performance in different operational modes (coaxial, multi-modal, mobile).
2Reliability
If multiple transceiving arrays are implemented to adapt to different scenarios, then the communication performance is improved, but the system complexity and difficulty of array selection increase
Solution Approach 1:
The patent employs feedback mechanisms where the receiving end sends back information about signal quality and reception conditions to the transmitting end. Based on this feedback, the system automatically determines the optimal array configuration for transmission, ensuring reliable communication while simplifying the selection process through automated feedback-driven decision making.
Solution Approach 2:
The patent pre-configures multiple concentric circular arrays with different geometries before actual communication begins. This preliminary setup allows the system to quickly switch between predefined array configurations based on scenario detection, avoiding complex real-time calculations and reducing the computational burden during active communication.
3Productivity
If the array configuration is changed to match different OAM modes, then the transmission efficiency is improved, but the time required for array determination and switching increases
Solution Approach 1:
The patent pre-establishes multiple concentric circular arrays with different configurations before communication starts. This preliminary preparation allows the system to instantly switch between predefined arrays when changing OAM modes, eliminating the need for complex real-time array determination calculations and minimizing switching time while maintaining high transmission efficiency.
Data Source
AI summary
A method for determining a transmission array of an orbital angular momentum (OAM) system, performed by a transmitter, that can include determining a plurality of transmission arrays from a first concentric circular array of the transmitter, transmitting, respectively and sequentially by the plurality of transmission arrays, a first reference signal to a receiver, and receiving first target index information from the receiver, and determining the transmission array of the OAM system based on the first target index information.