Multi-Carrier Time Slot Control for Base Station Energy Saving
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Solution Overview
Problem
Existing multi-carrier base stations face reduced energy efficiency due to static power amplifier voltage adjustments, leading to decreased power amplifier efficiency at low power output and deterioration of RF transmit indices from dynamic turn-off of idle time slots.
Innovation Solution
The method involves dynamically adjusting the power amplifier voltage based on statistical time periods and controlling carrier frequency time slots to optimize power consumption and RF indices by determining the time length for recovery from a dormant to an active state, reducing idle time slots and improving power amplifier efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If static power amplifier voltage adjustment is performed after base station power-up, then device complexity is reduced, but power amplifier efficiency at low power output deteriorates
Solution Approach 1:
The patent implements dynamic power amplifier voltage adjustment by continuously monitoring downlink power control information and statistical power values, then adjusting the power amplifier voltage in real-time based on current network conditions. This transforms the static voltage adjustment into a dynamic process that adapts to changing traffic loads, thereby maintaining high power amplifier efficiency across different power output levels while managing device complexity through automated control algorithms.
Solution Approach 2:
The patent changes the operating parameters of the power amplifier by adjusting its voltage based on statistical analysis of power consumption patterns and current traffic conditions. The system calculates statistical power values over time periods and uses these to determine optimal voltage settings, enabling the power amplifier to operate efficiently across a wide range of output power levels rather than being fixed at a single voltage setting.
2Use of energy by stationary object
If idle time slots are dynamically turned off to save energy, then power consumption is reduced, but RF transmit index deteriorates
Solution Approach 1:
The patent applies preliminary action by pre-calculating and storing statistical power values for different time periods before actual traffic occurs. When idle time slots need to be turned off, the system refers to these pre-computed statistical values to make informed decisions about which time slots can be safely deactivated without impacting RF performance, thus preventing deterioration of RF transmit indices while achieving energy savings.
Solution Approach 2:
The patent implements feedback mechanisms by continuously monitoring RF transmit indices and power consumption levels, then using this feedback information to adjust the decision-making process for turning off idle time slots. The system evaluates whether turning off specific idle time slots would adversely affect RF performance based on real-time feedback, and adjusts its energy saving strategy accordingly to maintain reliable operation.
Data Source
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AI summary
A method and a device for controlling time slot occupancy are provided. In the method, a base station determines a time length required for carrier frequency time slots of a multi-carrier module from a dormant state to an available state. The base station controls the carrier frequency time slots of the multi-carrier module and carrier time slots of the multi-carrier module according to the time length and time slot occupancy information of the multi-carrier module. Through the method, the quantity of time slots in the active state of the multi-carrier module is reduced, thereby lowering power consumption of the multi-carrier module, and realizing energy saving of the multi-carrier module.