Base Station Discontinuous Operation for Power Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The increasing number of micro base stations in wireless communication systems leads to higher power consumption, especially since existing methods for reducing power consumption during communication are not effective in managing traffic variability, resulting in unnecessary power usage when no communication is occurring.
Innovation Solution
A method and apparatus that check the states of mobile stations allowed to a base station and control its operation to be either continuous or discontinuous, separately setting transmission and reception times, and communication with the upper layer network to reduce power consumption by activating only when necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If micro base stations are deployed to expand coverage and improve transmission efficiency, then the coverage area and transmission efficiency are improved, but the power consumption increases significantly
Solution Approach 1:
The base station operates in periodic cycles with active periods for transmission/reception and inactive periods for power saving. The controller switches the base station between continuous operation mode and discontinuous operation mode based on traffic conditions, implementing periodic action to reduce power consumption while maintaining coverage capability.
2Reliability
If the base station operates continuously to maintain communication availability, then the communication reliability is improved, but the power consumption increases during inactive periods
Solution Approach 1:
The base station operates mode is dynamically adjusted based on real-time traffic conditions. The controller monitors traffic variability and switches between continuous operation mode (high reliability) and discontinuous operation mode (power saving) adaptively, making the system dynamic rather than static to balance reliability and power consumption.
Solution Approach 2:
The operational parameters of the base station are changed based on traffic conditions. When traffic is low or no traffic exists, the system changes from continuous operation to discontinuous operation with reduced power consumption. When traffic increases, it switches back to continuous operation, thereby changing operational parameters to resolve the contradiction.
3Loss of energy
If power consumption reduction methods are applied during communication, then the energy efficiency is improved, but they are not effective when no communication is occurring resulting in unnecessary power usage
Solution Approach 1:
The base station implements periodic operation cycles with active transmission/reception periods and inactive periods. During inactive periods when no communication occurs, the base station enters a low-power state, applying periodic action to eliminate unnecessary power usage during idle time while maintaining energy efficiency during active communication periods.
Data Source
AI summary
An operation control method in a base station of a wireless communication system includes: checking whether or not an allowed mobile station exists in coverage of the base station and overall coverage of base stations adjacent to the base station; and controlling the base station to perform transmission/reception at a predetermined period through a first discontinuous operation, when the allowed mobile station does not exist in the coverage of the base station and the overall coverage of the adjacent base stations.