Reference Signal Feedback for Adaptive 5G Antenna Power Saving
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The high energy consumption of 5G base stations, particularly in the active antenna unit part of large-scale antenna arrays, poses a significant challenge, limiting the widespread deployment and application of 5G networks.
Innovation Solution
An information transmission method and device that involves a terminal obtaining spatial and power domain adaptation indication information, measuring reference signal resources, and reporting measurement results to enable adaptive antenna power adjustment and port turning-on/off, thereby reducing energy consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If large-scale antenna arrays are used in 5G base stations, then network coverage and data transmission capability are improved, but energy consumption increases significantly
Solution Approach 1:
The patent implements dynamic spatial domain adaptation where the base station adjusts antenna port configurations based on real-time channel conditions and traffic requirements. The network device receives feedback information from the terminal about channel quality and dynamically modifies the spatial domain parameters, enabling the system to transition between different antenna activation states adaptively, thus maintaining high data transmission capability while reducing energy consumption during low-traffic periods
Solution Approach 2:
The patent changes physical parameters of the antenna system by adjusting the activation state of different antenna ports in the large-scale antenna array. By modifying which antenna ports are active or deactivated based on spatial domain adaptation patterns, the system can maintain necessary coverage and transmission capability while significantly reducing the number of active components, thereby lowering overall energy consumption
2Use of energy by moving object
If spatial domain adaptation is implemented, then energy consumption is reduced, but system complexity increases
Solution Approach 1:
The patent segments the large-scale antenna array into multiple antenna ports that can be independently controlled and adapted. By dividing the antenna system into manageable spatial domain adaptation patterns, the complexity of controlling the entire large-scale array is reduced to controlling individual segments or groups of antenna ports, making the system more manageable while still achieving energy savings
Solution Approach 2:
The patent implements a feedback mechanism where the terminal measures channel state information and sends feedback to the network device. This feedback loop enables automatic adjustment of spatial domain adaptation patterns without requiring complex manual configuration, reducing the operational complexity while maintaining energy efficiency. The system self-adjusts based on real-time conditions
3Use of energy by moving object
If antenna ports are deactivated for energy saving, then energy consumption decreases, but channel state information accuracy deteriorates
Solution Approach 1:
The patent employs periodic channel state information measurement and reporting mechanisms. Even when antenna ports are deactivated for energy saving, the system periodically reactivates them to perform channel measurements and update adaptation patterns. This periodic action ensures that when the system needs to switch back to high-performance mode, accurate and up-to-date channel state information is already available, maintaining measurement precision while preserving energy during intermediate periods
Data Source
Figure 1~3
Figure 4~7
Figure 8~11
AI summary
The present disclosure provides an information transmission method and device. The information transmission method in the embodiments of the present disclosure includes: a terminal obtaining first indication information, wherein the first indication information comprises spatial domain adaptation indication information and/or power domain adaptation indication information; the terminal measuring reference signal resource associated with the first indication information and reporting a measurement result.