Dynamic CSI-RS Port and Beam Control for gNB Energy Savings
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Solution Overview
Problem
The increasing power consumption of gNBs in 5G mobile communication systems due to larger bandwidths and more transmission antennas necessitates a method to adjust transmission parameters at short intervals for energy saving while maintaining cell throughput and coverage.
Innovation Solution
A method involving dynamic adjustment of CSI-RS ports or beams at short time intervals, with gNBs and terminals measuring and reporting channel state information (CSI) to optimize energy usage and coverage management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If gNBs use larger bandwidths and more transmission antennas to support 5G services, then transmission rates and coverage are improved, but power consumption increases
Solution Approach 1:
The patent implements dynamic adjustment of transmission parameters including bandwidth, number of antennas, and power levels based on real-time channel state information and traffic conditions. The gNB can flexibly change these parameters to match actual service requirements, avoiding fixed high-power operation and thereby reducing overall energy consumption while maintaining transmission performance.
Solution Approach 2:
The patent changes physical and operational parameters such as transmission bandwidth, antenna activation patterns, and power levels based on channel conditions and traffic demand. By dynamically modifying these parameters rather than operating at maximum capacity continuously, the system achieves energy efficiency while maintaining service quality.
2Use of energy by stationary object
If gNBs adjust transmission parameters at short intervals for energy saving, then power consumption is reduced, but measurement and reporting of channel state information becomes more complex
Solution Approach 1:
The patent configures CSI measurement and reporting parameters in advance through higher layer signaling, establishing measurement occasions, reporting configurations, and processing requirements before dynamic adjustment occurs. This preliminary setup simplifies real-time operations by pre-defining the measurement framework, allowing the gNB to focus only on executing pre-configured measurements during parameter adjustments.
Solution Approach 2:
The patent implements a feedback mechanism where the gNB measures channel state information, processes it according to pre-configured rules, and reports back to the terminal. This feedback loop enables the system to adapt transmission parameters based on actual channel conditions while maintaining manageable complexity through structured measurement and reporting procedures.
3Use of energy by stationary object
If gNBs dynamically change transmission parameters for energy saving and coverage management, then energy efficiency improves, but cell throughput may be affected
Solution Approach 1:
The patent dynamically adjusts transmission parameters based on real-time channel state information and traffic conditions. The gNB can increase power and bandwidth when throughput is critical and reduce them when energy saving is prioritized, creating a flexible balance between energy efficiency and productivity that adapts to changing network conditions.
Solution Approach 2:
The patent changes transmission parameters such as power levels, bandwidth, and antenna configuration based on the operational context. By modifying these parameters dynamically rather than using fixed settings, the system can optimize the trade-off between energy consumption and throughput according to actual service demands and channel conditions.
Data Source
AI summary
The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. Provided, according to various embodiments of the present disclosure, is a method comprising the steps of: receiving, from a base station, first information for dynamically changing the port or beam of a CSI-RS; receiving, from the base station, second information indicating a CSI-RS resource; receiving, on the basis of the first information and the second information, a CSI-RS in the CSI-RS resource; and transmitting, to the base station, CSI comprising measurement results for the CSI-RS.