Multi-Carrier CSI Reporting Mechanism for Sidelink Terminals
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Solution Overview
Problem
The existing new radio (NR) sidelink communication system only supports a single carrier and a single-carrier-based CSI reporting mechanism, which is inadequate for multi-carrier scenarios, leading to inefficiencies in channel state information reporting.
Innovation Solution
A wireless communication method that involves receiving indication information to send a CSI report, determining a suitable carrier for the report, and sending the CSI report on that carrier, enabling efficient CSI reporting in multi-carrier environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single-carrier-based CSI reporting mechanism is used, then the system is simple to implement, but it cannot support multi-carrier scenarios effectively
Solution Approach 1:
The patent extends the existing single-carrier CSI reporting mechanism to support multi-carrier scenarios by defining a universal reporting framework that can handle both single and multiple carriers. The second terminal determines whether to send CSI reports on the same carrier or different carriers based on configuration, enabling the system to adapt to different carrier scenarios with a unified mechanism.
Solution Approach 2:
The patent introduces dynamic carrier selection for CSI reporting based on terminal capability and configuration. The second terminal can dynamically choose to send CSI reports on the same carrier or different carriers, and the first terminal can dynamically select the most appropriate carrier for receiving CSI reports based on channel conditions and resource availability.
2Reliability
If CSI reports are sent on the same carrier, then the reporting mechanism is simple, but it may not optimize transmission performance in multi-carrier scenarios
Solution Approach 1:
The patent enables different CSI reporting strategies for different carriers based on local conditions. The first terminal can configure the second terminal to send CSI reports on specific carriers according to channel quality, resource availability, and interference conditions on each carrier, optimizing the reporting performance for each local context.
Solution Approach 2:
The patent introduces pre-configuration of carrier selection for CSI reporting. The network can pre-configure which carriers should be used for CSI reporting based on historical channel conditions and traffic patterns, allowing the terminals to make informed carrier selection decisions without real-time complex calculations.
3Adaptability or versatility
If multiple carriers are configured for CSI reporting, then reporting flexibility increases, but resource management becomes more complex
Solution Approach 1:
The patent segments the multi-carrier CSI reporting resource management into distinct components: carrier selection for sending CSI reports, carrier selection for receiving CSI reports, and configuration management. This segmentation allows each component to be managed independently, reducing the overall complexity of resource management while maintaining flexibility.
Data Source
AI summary
A wireless communication method and a terminal device are provided. The wireless communication method includes the following. A first terminal receives first indication information, where the first indication information indicates the first terminal to send a first channel state information (CSI) report. The first terminal determines a first carrier, where the first carrier is used for sending the first CSI report.