CSI-RS Measurement Configuration for Wireless Communication
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Solution Overview
Problem
In wireless communication systems, particularly in 3GPP LTE, there is a challenge in efficiently measuring and reporting Channel State Information-Reference Signals (CSI-RS) across multiple transmission points, which affects data transmission quality, especially at the cell's periphery where interference from neighboring cells is significant, and during handovers.
Innovation Solution
A method and apparatus for measuring and reporting CSI-RS, where a terminal acquires a measurement configuration from the network, performs CSI-RS measurements, and evaluates report conditions to transmit measurement results, allowing for independent configuration and combination with Radio Resource Monitoring (RRM) measurements, enabling improved data transmission quality through coordinated communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If CSI-RS measurement and reporting is implemented separately from RRM measurement, then measurement flexibility and coordination capability are improved, but system complexity and configuration overhead increase
Solution Approach 1:
The patent combines CSI-RS measurement and reporting with existing RRM measurement frameworks by configuring measurement objects, reporting configurations, and measurement identities that integrate both functions. The measurement report can include both RRM measurement results and CSI-RS measurement results, allowing the system to leverage existing infrastructure while achieving enhanced coordination capability.
Solution Approach 2:
The measurement configuration structure is designed to serve multiple purposes: it can configure RRM measurements, CSI-RS measurements, or both simultaneously. The same measurement report mechanism can deliver different types of measurement results depending on the configuration, making the system adaptable to various scenarios including coordinated communication and handover.
2Productivity
If measurement report conditions are strictly enforced, then unnecessary reporting is reduced and network resources are saved, but measurement responsiveness may be compromised
Solution Approach 1:
The measurement report condition can be dynamically configured based on network needs and measurement scenarios. The network can adjust reporting triggers, thresholds, and conditions to balance between reducing unnecessary reporting and maintaining responsive measurement updates. This dynamic configuration allows optimization of the trade-off between network efficiency and measurement responsiveness.
Data Source
AI summary
Provided is a method for measuring and reporting a channel state information-reference signal (CSI-RS) by a terminal in a wireless communication system. The method involves acquiring, from a network, a measurement configuration for measuring radio resource monitoring, the measurement configuration including information for requesting a CSI-RS measurement report, performing a CSI-RS measurement based on the measurement configuration in order to acquire a CSI-RS measurement result, evaluating whether or not a measurement result report condition has been satisfied based on the measurement configuration, and, if the measurement result report condition has been satisfied, transmitting a measurement report message to the network. The measurement report message includes the CSI-RS measurement result.