Multi-Port Costas Array Signaling for Integrated Sensing and Communication
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Solution Overview
Problem
Existing wireless communication systems lack efficient integration of sensing and communication capabilities, particularly in advanced mobile communication systems like B5G and 6G, which require improved signal design for simultaneous sensing and communication services.
Innovation Solution
The implementation of Costas arrays and CSI-RS signal resources to configure and transmit signals for integrated sensing and communication services, utilizing Costas arrays to enhance signal resolution and orthogonality, and configuring CSI-RS resources through RRC signaling for optimal signal transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional signal designs are used in wireless communication systems, then communication capability is maintained, but sensing capability integration is insufficient and signal resolution is limited
Solution Approach 1:
The patent applies universality by designing a multi-port Costas array signal structure that simultaneously provides both communication and sensing functions. The same signal transmission framework supports multiple ports for communication while enabling sensing capabilities through the inherent properties of Costas arrays, allowing one system to perform multiple functions without requiring separate dedicated systems for each function.
Solution Approach 2:
The patent employs parameter changes by utilizing the specific mathematical properties of Costas arrays, particularly their two-dimensional autocorrelation characteristics. By changing the signal structure parameters to adopt Costas array patterns instead of traditional sequences, the system achieves improved range resolution and velocity resolution while maintaining communication functionality, thus resolving the contradiction between versatility and measurement precision.
2Productivity
If multiple ports are used for signal transmission, then communication capacity increases, but signal orthogonality and interference management become more complex
Solution Approach 1:
The patent applies segmentation by dividing the multi-port signal transmission into independent Costas array configurations for each port. Each port can be independently configured with its own Costas array parameters, allowing for modular design and simplified management. This segmentation approach enables scalable expansion from 2-port to 4-port or more configurations without fundamentally changing the overall system architecture, thus increasing communication capacity while keeping signal configuration manageable.
3Adaptability or versatility
If sensing capability is added to communication systems, then system functionality is enhanced, but signal design complexity increases
Solution Approach 1:
The patent applies merging by combining sensing and communication signal designs into a unified Costas array-based framework. Instead of designing separate signals for sensing and communication, the patent merges both functions into a single multi-port Costas array signal structure that inherently supports both purposes. This merging reduces overall signal design complexity by eliminating the need for separate signal processing chains while enhancing system versatility.
Data Source
AI summary
Provided are a signal transmission method and apparatus, a signal transmit node, and a signal receive node. The signal transmission method includes: configuring, by a signal transmit node, a first signal corresponding to each port based on a Costas array corresponding to each of N ports, where the Costas array corresponding to each port includes at least one Costas array or at least one Costas array set, each Costas array set includes at least one Costas array, N is an integer greater than 1, and the first signal includes a signal related to a sensing service or a signal related to an integrated sensing and communication service; and sending, by the signal transmit node, the first signal corresponding to each port on each port.