Base Station Dormant-Mode Control for 5G Energy Saving
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The challenge of excessive energy consumption in wireless communication systems, particularly in base stations, is a significant issue that needs to be addressed to enhance energy efficiency.
Innovation Solution
A method involving processing control signals in a wireless communication system, including receiving and transmitting signals between a base station and a terminal, with synchronization and data transmission based on control signals, to optimize energy usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If base stations continuously transmit and process control signals to support increasing connected devices, then communication coverage and service capability are improved, but energy consumption increases excessively
Solution Approach 1:
The base station dynamically adjusts its operational state by switching between active and dormant modes based on traffic conditions. When no data needs to be transmitted, the base station enters a dormant state where it stops transmitting control signals, thereby reducing energy consumption while maintaining the ability to quickly resume service when needed
Solution Approach 2:
Instead of continuous transmission, the base station transmits control signals periodically or on-demand based on whether there is actual data to send. This periodic action maintains communication coverage and service capability while avoiding unnecessary energy consumption during idle periods
2Reliability
If base stations maintain continuous signal transmission to ensure communication reliability, then connection reliability is improved, but energy efficiency deteriorates
Solution Approach 1:
The base station monitors its own traffic conditions and autonomously decides when to enter or exit dormant state. By using self-service mechanisms, the system maintains reliability when needed while automatically reducing energy consumption during idle periods without requiring continuous operational overhead
3Area of stationary object
If base stations process control signals for all connected devices, then communication coverage is expanded, but operational complexity increases
Solution Approach 1:
The patent extracts the essential function of providing coverage by maintaining the ability to transmit control signals, but removes the unnecessary complexity of continuous processing for all devices. The base station only processes and transmits control signals when there is actual data to send, simplifying operations while preserving coverage capability
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The present disclosure relates to a 5th generation (5G) or 6th generation (6G) communication system for supporting a higher data transmission rate. Also, the present disclosure provides a method and device for energy saving of a base station (BS) in a mobile communication system. According to the present disclosure, the problem of excessive energy consumption of a BS in a mobile communication system may be resolved and high energy efficiency may be achieved. A method, performed by a terminal, of transmitting and receiving a signal in a wireless communication system according to an embodiment of the present disclosure includes: synchronizing with a first cell, receiving, from the first cell, a first control signal including information for a cell controllable by the first cell; and transmitting data to a second cell based on the first control signal.