Polarization Multiplexing Through a Single Antenna
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Solution Overview
Problem
Existing communication systems face challenges in efficiently utilizing high-frequency bands for wideband communication, particularly in terrestrial and non-terrestrial networks, where beam-based communication requires improved multiplexing techniques to enhance throughput.
Innovation Solution
A method and apparatus for polarization-based multiplexing involving the generation and conversion of polarized signals using conversion matrices to transmit and receive signals with different polarization schemes through a single antenna, enabling efficient transmission and reception of polarized signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If polarization multiplexing is implemented using multiple antennas, then transmission capacity and throughput are improved, but device complexity and cost increase
Solution Approach 1:
The patent combines multiple polarization schemes (linear polarization and circular polarization) into a single antenna system. The baseband processing unit generates polarized signals that are converted to different polarization schemes and transmitted through one antenna, merging functions that would traditionally require separate antennas into a unified system that achieves the same throughput enhancement without increasing hardware complexity
Solution Approach 2:
The single antenna is designed to transmit signals with multiple polarization schemes by receiving control information about the polarization scheme from the network and adjusting its transmission accordingly. This makes the antenna universal, capable of performing multiple polarization functions that would traditionally require dedicated antennas for each scheme, thereby improving productivity while reducing device complexity
2Adaptability or versatility
If beam-based communication is used in high-frequency bands, then wideband communication capability is improved, but resource efficiency deteriorates
Solution Approach 1:
The patent implements dynamic polarization switching where the antenna adapts its polarization scheme based on control information received from the network. This dynamic adjustment allows the system to optimize resource usage by selecting the appropriate polarization scheme for each transmission, improving resource efficiency while maintaining the beam-based wideband communication capability in high-frequency bands
Data Source
AI summary
A method of a first communication node may comprise: generating a first polarized signal by performing first baseband processing on a first set of modulation symbols; generating a second polarized signal by multiplying the first polarized signal by a first conversion matrix; and transmitting the second polarized signal to a second communication node.