OAM Data Channel Configuration for Higher-Rate 6G Multiplexing
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Solution Overview
Problem
Existing wireless communication systems face challenges in meeting the increasing demand for higher transmission rates, particularly in 6G systems, due to limitations in resource utilization and multiplexing techniques.
Innovation Solution
The implementation of orbital angular momentum (OAM) data channels configuration, which involves mapping data channels to OAM modes using spatial multiplexing and diversity techniques, along with OAM-MIMO multiplexing with multiple antenna arrays, to enhance communication capacity and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If traditional time and frequency domain resources are used for wireless transmission, then the system can support basic communication requirements, but the transmission rate cannot meet the increasing demand for higher speeds in 6G systems
Solution Approach 1:
The patent introduces orbital angular momentum (OAM) modes as an additional dimension for data multiplexing beyond traditional time and frequency domains. By mapping data channels to different OAM modes, the system creates a new spatial dimension for communication, enabling higher transmission rates without exhausting existing time-frequency resources. This dimensional expansion allows multiple data streams to be transmitted simultaneously through orthogonal OAM modes.
Solution Approach 2:
The patent changes the fundamental parameter of wave propagation by utilizing the angular momentum property of electromagnetic waves. Instead of relying solely on frequency and time variations, the system employs OAM mode parameters (topological charges) to differentiate communication channels. This parameter transformation enables new multiplexing capabilities that directly address the transmission rate bottleneck.
2Quantity of substance
If more communication channels are created to increase transmission rates, then the data capacity improves, but the system complexity increases due to additional multiplexing techniques
Solution Approach 1:
The patent segments the communication channels by assigning different OAM modes to different data streams. Each OAM mode acts as an independent segment carrying specific data, allowing the system to increase the number of channels through mode division. This segmentation approach enables scalable channel creation without requiring complete redesign of the multiplexing architecture.
Solution Approach 2:
The patent creates a universal framework where OAM modes can be applied across multiple communication scenarios and configurations. The same OAM-based multiplexing mechanism can serve different purposes (spatial multiplexing, diversity schemes) and work with various antenna arrays, reducing the need for separate complex systems for each function and thereby managing overall system complexity.
3Productivity
If spatial multiplexing and diversity techniques are applied with OAM modes, then the communication capacity increases, but the configuration and signaling overhead increases
Solution Approach 1:
The patent performs preliminary configuration of OAM modes and their mapping to data channels before actual data transmission. By pre-establishing the relationships between OAM modes, antenna arrays, and data streams through initial signaling, the system reduces the complexity of real-time configuration management. This preliminary setup enables efficient spatial multiplexing and diversity operations without requiring complex dynamic reconfiguration during transmission.
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 increases the number of available communication channels and improves transmission rates by leveraging the angular domain of electromagnetic waves, providing an extra dimension for data multiplexing and utilizing spatial diversity.
Implementation Method 1
orbital angular momentum (OAM) data channels configuration... mapping data channels to OAM modes using spatial multiplexing... leveraging the angular domain of electromagnetic waves, providing an extra dimension for data multiplexing
Data Source
AI summary
Various aspects of the present disclosure relate to a user equipment (UE) that receives, from a base station, a signaling indicating an orthogonal angular momentum (OAM) multiplexing configuration of one or more configured OAM modes. The UE can apply at least one of the configured OAM modes for receiving a downlink transmission and/or transmitting an uplink transmission. The base station transmits the OAM multiplexing configuration of the one or more configured OAM modes to be applied at the UE, and the base station can then receive, from the UE, an uplink transmission with at least one of the configured OAM modes applied.