Booster Cell Energy Saving to Prevent Base Station Ping-Pong
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Solution Overview
Problem
Existing base station energy saving technologies struggle to determine optimal times for powering on or off cells in energy-saving mode, leading to inefficient energy consumption due to frequent activation and deactivation (ping-pong phenomenon).
Innovation Solution
A base station energy saving management system that adaptively manages energy saving by considering channel conditions, load information, and terminal location, using a booster base station to switch cells to energy-saving mode when load and terminal conditions meet specific thresholds, and activating cells when necessary to maintain quality of service.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If a base station powers off a cell in energy saving mode to reduce power consumption, then energy saving is improved, but the cell cannot respond timely to increased load requirements
Solution Approach 1:
The patent applies preliminary action by establishing candidate cells in advance that can quickly take over when the main cell needs to be activated. The candidate cells are pre-configured and ready to serve users immediately when the cell transitions from energy saving mode to active mode, ensuring continuous service without interruption.
Solution Approach 2:
The patent uses candidate cells as intermediaries between the energy saving state and full service restoration. When a cell needs to be activated, candidate cells serve as temporary intermediaries that maintain service continuity while the main cell comes online, resolving the contradiction between energy saving and service reliability.
2Loss of energy
If a base station frequently activates and deactivates cells to adapt to load changes, then energy saving is optimized, but the ping-pong phenomenon increases causing instability
Solution Approach 1:
The patent applies preliminary action by pre-establishing candidate cells before the main cell is deactivated. This preparation allows for a smoother transition and prevents frequent flipping between active and energy saving states, as the candidate cells are already in place to handle immediate load requirements.
Solution Approach 2:
The patent implements feedback mechanisms where the base station continuously monitors cell load, user distribution, and channel conditions before making activation/deactivation decisions. This feedback loop prevents premature or unnecessary state changes, reducing the ping-pong phenomenon and stabilizing cell state composition.
3Reliability
If a base station activates a cell to maintain communication coverage, then service quality is improved, but power consumption increases
Solution Approach 1:
The patent applies local quality by differentiating between the main cell and candidate cells in terms of their operational characteristics. The main cell provides full service quality when active, while candidate cells provide limited or no service during energy saving mode. This local differentiation allows the system to maintain coverage where needed while saving energy where not required.
Solution Approach 2:
The patent uses partial action by having candidate cells provide partial coverage or limited service functionality rather than full service. This partial action is sufficient to maintain basic communication coverage during energy saving mode, reducing power consumption while still meeting minimum service requirements.
Data Source
AI summary
Provided herein is a base station device which includes a communication module configured to provide a communication channel to a capacity booster cell overlapping some region of at least one adjacent cell, and a processor functionally connected to the communication module, wherein the processor may receive cell load information and channel information from the at least one adjacent cell and at least one terminal within the capacity booster cell through the communication module; confirm that the capacity booster cell satisfies a first condition according to the cell load information and the channel information, in which the first condition is that a load of the capacity booster cell is less than a specified threshold value, and a specified terminal is not located within the capacity booster cell; and switch to an energy saving mode when the capacity booster cell satisfies the first condition.