Channel state information configuration method and device for network energy saving in wireless communication system
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Solution Overview
Problem
Existing wireless communication systems face challenges in reducing power consumption at base stations, particularly in advanced communication systems like 5G and 6G, which require efficient energy management to support increasing device connectivity and diverse services.
Innovation Solution
A method and device for network energy saving that involves configuring and reporting channel state information (CSI) using a subset of CSI-RS ports, allowing terminals and base stations to optimize CSI reporting to reduce unnecessary power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If full CSI-RS ports are used for CSI reporting, then measurement precision is improved, but energy consumption increases
Solution Approach 1:
The patent applies partial action by configuring the terminal to perform CSI measurement and reporting only on a subset of CSI-RS ports rather than all available ports. The base station transmits CSI-RS on multiple ports but the terminal is configured to measure and report CSI for only a portion of these ports, thereby reducing the energy consumption at the base station while maintaining sufficient measurement precision for network operation
Solution Approach 2:
The patent changes the parameter of CSI reporting by introducing a configuration that specifies a subset of CSI-RS ports for measurement. The base station can dynamically adjust which ports are included in the subset through RRC configuration, allowing flexibility in balancing measurement precision requirements against energy consumption constraints based on network conditions
2Use of energy by moving object
If subset of CSI-RS ports is used for CSI reporting, then energy consumption is reduced, but measurement precision deteriorates
Solution Approach 1:
The patent implements partial action by selecting a carefully chosen subset of CSI-RS ports that provides sufficient measurement precision for network operation. The base station configures the terminal to measure only the necessary subset of ports rather than all ports, achieving energy savings while maintaining adequate CSI accuracy through intelligent port selection
Solution Approach 2:
The patent utilizes parameter changes by allowing the base station to dynamically configure which specific CSI-RS ports are included in the measurement subset through RRC signaling. This enables the system to adapt the measurement configuration based on traffic conditions, channel characteristics, and energy requirements, maintaining measurement precision where needed while reducing it only where acceptable
Data Source
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AI summary
The present disclosure relates to a 5G or 6G communication system for supporting higher data transmission rates. The present disclosure relates to operations of a terminal and a base station in a wireless communication system. Specifically, the present disclosure describes a channel state information report method and device for network energy saving in a wireless communication system.