Adaptive CSI-RS Configuration for 5G Terminal Power Reduction
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Solution Overview
Problem
The deployment of 5G base stations leads to increased greenhouse gas emissions and high power consumption, necessitating energy-saving solutions in wireless communication systems.
Innovation Solution
A wireless communication method that involves receiving control signaling with CSI-RS configuration information and first signaling with CSI-RS configuration indications from a wireless communication node, allowing the terminal to perform CSI-RS measurements or transmit channel state information measurement reports based on the received configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If CSI-RS measurements are performed with full configuration, then measurement precision is improved, but power consumption increases
Solution Approach 1:
The patent applies dynamics by making the CSI-RS configuration adaptive rather than fixed. The network dynamically adjusts the CSI-RS configuration based on terminal capability and network conditions, allowing the system to optimize between measurement precision and power consumption in real-time.
Solution Approach 2:
The patent changes key parameters of the CSI-RS configuration including the number of antenna ports, measurement bandwidth, and measurement duration. By varying these parameters, the system can achieve different measurement precision levels while controlling power consumption according to actual needs.
2Measurement precision
If multiple antenna ports are configured for CSI-RS, then channel state information accuracy is improved, but device complexity increases
Solution Approach 1:
The patent segments the CSI-RS configuration into different antenna port groups, allowing the terminal to process measurements from multiple ports in a structured manner. This segmentation reduces processing complexity by organizing the data into manageable units while maintaining measurement accuracy.
Solution Approach 2:
The patent enables partial measurement of antenna ports based on actual needs. The network can configure the terminal to measure only a subset of antenna ports when full measurement is not necessary, reducing terminal complexity and power consumption while maintaining sufficient accuracy for the given application.
3Reliability
If comprehensive CSI-RS configuration is applied, then communication reliability is improved, but power consumption increases
Solution Approach 1:
The patent applies local quality by tailoring the CSI-RS configuration to specific local conditions such as terminal location, mobility state, and channel conditions. Instead of using a uniform comprehensive configuration everywhere, the system adjusts the configuration locally to achieve sufficient reliability with minimal power consumption for each specific scenario.
Data Source
AI summary
A wireless communication method is disclosed. The method comprises: receiving, by a wireless communication terminal from a wireless communication node, control signaling comprising channel state information reference signal, CSI-RS, configuration information; receiving, by the wireless communication terminal from the wireless communication node, first signaling comprising a CSI-RS configuration indication associated with a port number or a dropping indication; and performing, by the wireless communication terminal, at least one of a CSI-RS measurement or a transmission of a channel state information, CSI, measurement report to the wireless communication node based on at least one of the CSI-RS configuration information or the CSI-RS configuration indication in the first signaling.