Measurement Reference Signal Parameter Determination for Interference Reduction
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Solution Overview
Problem
The challenge is to reduce interference between links of a communication node that uses space-division multiplexing (SDM), as existing technologies struggle to effectively manage interference in SDM modes.
Innovation Solution
The proposed solution involves determining and sending parameter information for a measurement reference signal, which includes determining resources for measurement reference signals based on received signaling information and pre-negotiated rules, and using these signals to measure interference effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If space-division multiplexing mode is adopted to increase spectral efficiency and reduce delay, then spectrum utilization rate is improved and delay is reduced, but interference between links increases
Solution Approach 1:
The patent applies preliminary action by pre-configuring measurement reference signal resources and parameters before actual communication occurs. The network device determines and notifies the IAB node about the resources (time, frequency, spatial) where measurement reference signals will be transmitted, enabling the IAB node to proactively measure interference levels on these pre-allocated resources rather than reacting to interference after it occurs.
Solution Approach 2:
The patent replaces traditional mechanical interference management methods with signal-based measurement and indication mechanisms. Instead of physically separating links or using complex hardware isolation, the system uses measurement reference signals (CSI-RS, SRS) and uplink indication signals to detect and manage interference through information exchange and coordinated resource allocation.
2Measurement precision
If measurement reference signal resources are increased to improve interference measurement accuracy, then interference measurement precision is improved, but resource overhead increases
Solution Approach 1:
The patent applies universality by designing measurement reference signals that serve multiple functions simultaneously. The same measurement reference signal resources are used for both channel state information measurement and interference measurement. Additionally, uplink signals serve dual purposes as both data transmission carriers and interference measurement indicators, reducing the need for dedicated measurement-only resources.
Solution Approach 2:
The patent implements self-service by enabling the IAB node to autonomously determine interference measurement resources and parameters based on pre-configured rules and received indications. The IAB node independently selects appropriate measurement reference signal resources from configured sets and determines uplink signal parameters for interference indication without requiring detailed step-by-step configuration from the network, reducing signaling overhead while maintaining measurement capability.
Data Source
AI summary
Provided are a signal transmission method and apparatus, a device, and a computer storage medium. A method for sending a measurement reference signal includes: determining parameter information of the measurement reference signal according to received signaling information and/or a pre-negotiated parameter determination rule; and sending the measurement reference signal according to the determined parameter information.