Interference Measurement Pattern Determination in MU-MIMO Systems
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Solution Overview
Problem
In Multi-User Multiple-Input Multiple-Output (MU-MIMO) systems, terminal devices face difficulties in measuring interference when the resource region for reference signal transmission is configurable, leading to increased interference and reduced transmission performance due to unawareness of the resource pattern.
Innovation Solution
A method and device that determine an interference measurement pattern indicating the distribution of resource elements, allowing terminal devices to identify the interference type and accurately measure interference on these elements, thereby reducing overall interference and enhancing transmission performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the resource region for transmitting reference signals is made configurable with multiple resource patterns, then the adaptability of the system is improved, but the interference measurement capability deteriorates because terminal devices cannot identify the resource pattern
Solution Approach 1:
The network device determines and notifies the terminal device of the interference measurement pattern in advance before interference measurement is performed. This preliminary action provides the terminal device with the necessary resource element distribution information beforehand, enabling accurate interference measurement on the configured resource elements despite the configurable resource patterns.
2Ease of operation
If the resource region is fixed for reference signal transmission, then the terminal device can easily measure interference, but the system flexibility and adaptability are reduced
Solution Approach 1:
The network device determines and notifies the terminal device of the interference measurement pattern in advance, providing the resource element distribution information before measurement. This allows the resource region to be flexible and configurable while maintaining ease of interference measurement, as the terminal device receives the necessary pattern information beforehand.
3Productivity
If different resource patterns are used to transmit downlink reference signals to different terminal devices, then the system capacity is improved, but the interference level increases when terminal devices are unaware of the patterns
Solution Approach 1:
The network device determines and notifies the terminal device of the interference measurement pattern before interference measurement is performed. This allows multiple terminal devices to use different resource patterns for reference signal transmission, increasing system capacity, while each terminal device can accurately measure interference on its configured resource elements because it has been provided with the appropriate pattern information in advance.
Data Source
AI summary
Embodiments of the disclosure generally relate to interference measurement. A device determines an interference measurement pattern indicating distribution of resource elements allocated for interference measurement. Then, the device determines, based on the interference measurement pattern, an interference type for measuring interference on the resource elements.