Zero-Power CSI-RS Interference Measurement in Wireless Systems
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless communication systems face challenges in efficiently measuring interference in distributed multi-node systems, particularly due to the abnormal characteristics of wireless channels and increasing data requirements, which affect the reliability and performance of high-speed data services.
Innovation Solution
A method and apparatus for measuring interference using a zero-power channel state information reference signal (CSI-RS) indicator, allowing user equipment (UE) to determine whether to measure interference based on the CSI-RS received from a base station, effectively addressing interference in distributed multi-node systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If distributed multi-node systems are deployed to increase node density for higher performance, then system performance and data capacity are improved, but interference measurement becomes less efficient and more complex
Solution Approach 1:
The patent introduces zero-power CSI-RS resources as intermediary reference signals that enable UE to measure interference from other nodes without requiring complex coordination. These zero-power resources act as mediators that allow interference measurement in a simplified manner, resolving the complexity issue while maintaining the benefits of distributed multi-node systems
2Productivity
If zero-power CSI-RS resources are configured for interference measurement, then interference measurement efficiency is improved, but system resources are consumed
Solution Approach 1:
The zero-power CSI-RS resources are configured with multi-functionality, serving both as reference signals for channel state information and as interference measurement resources. This universal approach allows the same resources to fulfill multiple purposes, improving measurement efficiency without proportionally increasing resource consumption
Data Source
AI summary
Provided are a method and apparatus for measuring interference in a wireless communication system. A terminal receives, from a base station, a zero-power channel state information (CSI) reference signal (RS) indicator that indicates whether or not to estimate interference using a zero-power CSI RS signal, and, according to the zero-power CSI RS indicator, measures interference on the basis of the zero-power CSI RS.