Base Station Energy Saving via Remote Radio Unit Shutdown
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current energy-saving schemes for 5G base stations, particularly in scenarios with tidal user patterns, result in significant energy waste due to continuous operation without adequate load, contradicting the goal of green upgrade and increased operational costs.
Innovation Solution
Shutting down the remote radio unit in an active antenna unit and controlling the multi-mode baseband unit to enter an energy-saving mode, while ensuring normal communication by loading only essential modules, such as the clock reset management subsystem, network transport layer accelerator, and optical interface module.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the base station operates continuously to ensure communication availability, then communication reliability is improved, but energy consumption increases
Solution Approach 1:
The base station dynamically adjusts its operational state based on traffic conditions. During low-traffic periods, the remote radio unit is shut down and the baseband unit enters energy-saving mode with only essential modules loaded. During high-traffic periods, the system transitions back to full operational mode, ensuring communication reliability is maintained when needed while reducing energy consumption during low-demand periods.
2Productivity
If all modules in the baseband unit are loaded to ensure full functionality, then communication performance is improved, but energy consumption increases
Solution Approach 1:
The patent extracts and separates the essential communication modules from non-essential modules in the baseband unit. During energy-saving mode, only the first module responsible for basic communication functionality between the building baseband unit and active antenna unit is loaded. Other modules are unloaded or placed in low-power state, reducing energy consumption while maintaining essential communication performance.
Solution Approach 2:
Instead of loading all modules unnecessarily during low-traffic periods, the system applies partial action by loading only the minimum required module (first module) for basic communication functionality. This partial loading approach reduces energy consumption significantly while still providing sufficient communication performance for low-traffic scenarios.
3Speed
If the remote radio unit remains active to handle traffic instantly, then response speed is improved, but energy consumption increases
Solution Approach 1:
The remote radio unit operates in a periodic manner, switching between active and shutdown states based on traffic conditions. During low-traffic periods, the unit is shut down to save energy. When traffic arrives or during high-traffic periods, the unit activates to handle traffic instantly. This periodic activation pattern reduces overall energy consumption while maintaining responsive service when needed.
Data Source
Figure 1~2
AI summary
The present application provides a base station control method, an electronic device, and a computer-readable storage medium. The base station control method comprises: in response to meeting energy-saving conditions, closing a remote radio unit in an active antenna unit in a base station, and putting a multi-mode baseband processing unit in the active antenna unit in an energy-saving mode, wherein after the multi-mode baseband processing unit is put in the energy-saving mode, only a first module, required for ensuring normal communication between an indoor baseband processing unit and the active antenna unit, in the multi-mode baseband processing unit is loaded.