CSI-RS Resource Configuration for Interference Measurement
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Solution Overview
Problem
In full-duplex network operations, user equipment (UE) can only measure the magnitude of interference between a channel and a cell, but cannot measure interference caused by other UEs in co-channel or adjacent channels with different transmission directions.
Innovation Solution
A resource configuration method and apparatus that configures CSI-RS resource configuration information to enable terminals to perform channel measurement and interference measurement across different scenarios, using multiple CSI-RS resource configurations for various situations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the network operates in full-duplex mode with single CSI-RS resource configuration, then the device complexity is reduced, but the measurement precision is insufficient for interference scenarios
Solution Approach 1:
The patent segments the CSI-RS resource configuration into multiple distinct configurations (first, second, and third CSI-RS resource configurations), each optimized for specific measurement scenarios. This segmentation allows the system to achieve precise interference measurement for different transmission directions and channel conditions without requiring a single overly complex configuration that would need to handle all scenarios simultaneously.
Solution Approach 2:
The patent introduces dynamic selection mechanisms where the terminal device can adaptively choose which CSI-RS resource configuration to use based on the current transmission scenario. The network device dynamically indicates which configuration should be applied, allowing the system to optimize measurement precision for each specific situation while maintaining manageable configuration complexity through structured resource allocation.
2Adaptability or versatility
If multiple CSI-RS resource configurations are used for different scenarios, then the measurement precision is improved, but the device complexity increases
Solution Approach 1:
The patent designs the multiple CSI-RS resource configurations to serve universal purposes across different scenarios. Each configuration type (first, second, third) is designed to handle specific categories of measurement needs, creating a universal framework that can adapt to various interference scenarios without requiring entirely separate configurations for each case. This multi-functionality approach enhances adaptability while controlling complexity through systematic resource organization.
Solution Approach 2:
The system implements dynamic configuration selection where the terminal device and network device work together to choose the appropriate CSI-RS resource configuration based on current transmission conditions. This dynamic adaptation allows the system to achieve high versatility across different scenarios while managing complexity through intelligent selection rather than maintaining all possible configurations simultaneously.
3Reliability
If the terminal measures only channel magnitude without directional information, then the measurement process is simplified, but the reliability of transmission is reduced
Solution Approach 1:
The patent applies local quality by configuring different CSI-RS resources with specific spatial and directional characteristics tailored to their intended measurement purposes. Each CSI-RS resource configuration is optimized for its specific function (channel measurement, interference measurement from specific directions), providing locally optimized measurement quality that enhances overall transmission reliability without requiring uniform complexity across all measurement processes.
Solution Approach 2:
The system dynamically adapts the measurement process by selecting appropriate CSI-RS resource configurations based on current transmission conditions. When directional interference measurement is needed, the system activates configurations that provide directional information; when simple channel magnitude measurement suffices, simpler configurations are used. This dynamic approach ensures transmission reliability is maintained only when necessary, balancing reliability with measurement process complexity.
Data Source
AI summary
A resource configuration method includes receiving, by a terminal, one or more pieces of CSI-RS resource configuration information sent by a network side device; and performing, by the terminal, channel measurement and report or interference measurement and report on a target resource based on the one or more pieces of CSI-RS resource configuration information, where the CSI-RS resource configuration information is used to configure at least one first CSI-RS resource configuration; at least one second CSI-RS resource configuration; or at least one third CSI-RS resource configuration; the first CSI-RS resource configuration is used for a first resource; the second CSI-RS resource configuration is used for a second resource; and the third CSI-RS resource configuration is used for a third resource.