Base Station Cell Energy Saving via SON Power Control
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Solution Overview
Problem
The high costs associated with adding hardware devices to achieve energy-saving in base stations, as well as the inefficiency of existing energy-saving methods that do not effectively reduce energy consumption without modifying hardware, are significant challenges in the telecommunication industry.
Innovation Solution
Implementing a Self Organizing Network (SON) that judges whether a cell of a base station requires sleep or wake-up, and accordingly controls the carrier power by reducing or recovering pilot channel power to enter or exit an energy-saving state, thereby reducing energy consumption without modifying hardware.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If new energy-saving devices and heat dissipation materials are used, then energy consumption is reduced, but manufacturing costs increase
Solution Approach 1:
The base station autonomously monitors its own energy consumption status and automatically adjusts transmission power without external intervention. The system self-regulates by comparing current energy usage against thresholds and autonomously implementing power reduction or increase decisions, eliminating the need for additional control hardware or manual intervention.
Solution Approach 2:
The invention dynamically changes the transmission power parameter based on real-time energy consumption monitoring. By adjusting the power parameter (reducing or increasing it) in response to energy consumption levels, the system achieves energy-saving operation during low-demand periods while maintaining full power during high-demand periods, without requiring physical hardware modifications.
2Use of energy by moving object
If transmission power is reduced to save energy, then energy consumption decreases, but service quality may deteriorate
Solution Approach 1:
The system continuously monitors energy consumption and establishes feedback loops that compare actual energy usage against predefined thresholds. This feedback mechanism enables the base station to make informed decisions about when to reduce power (when consumption exceeds thresholds during low-traffic periods) and when to maintain or increase power (when thresholds are not exceeded or during high-traffic periods), thereby maintaining service quality while achieving energy savings.
Solution Approach 2:
The transmission power is made dynamic rather than static, allowing the base station to adaptively adjust power levels in real-time based on traffic conditions and energy consumption patterns. The system transitions between different power states (full power, reduced power, sleep mode) dynamically, ensuring that service quality is maintained during high-demand periods while energy consumption is reduced during low-demand periods.
Data Source
AI summary
The present invention discloses a method for cell sleep/wakeup, and a method and an apparatus for controlling carrier power, wherein the method for controlling carrier power comprises: a SON judging whether a cell of a base station requires sleep and/or wakeup, wherein when the judgment result is that the cell requires sleep, the SON indicates the base station to make the cell to sleep, so that the base station reduces pilot channel power of a carrier of the cell to zero or closes the carrier to make the cell enter an energy-saving state; and when the judgment result is that the cell requires wakeup, the SON indicates the base station to wake up the cell, so that the base station recovers the pilot channel power of the carrier of the cell to an operation state value to make the cell exit the energy-saving state.