Home Base Station Energy Saving Control via Source-Target Signaling
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Solution Overview
Problem
Current energy saving technologies for home base stations in LTE networks are inefficient due to their unique structure and lack of effective control mechanisms, which hinder energy conservation efforts in cellular communication systems.
Innovation Solution
A method and device for energy saving control in home base stations, where a source base station sends an energy saving control request to a target home base station, specifying operations like SLEEP or WAKE-UP, and the target station performs the requested action, with responses transmitted through the S1 interface via the Mobility Management Entity (MME) or gateway, enabling efficient energy management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If carrier off time and cell on-off technology are used for energy saving, then energy consumption is reduced, but control efficiency and responsiveness are insufficient due to lack of effective control mechanisms
Solution Approach 1:
The source base station proactively determines energy saving control strategies and sends control requests to target home base stations before energy consumption becomes critical. This preliminary action enables proactive energy management rather than reactive responses, improving both energy efficiency and control responsiveness by anticipating energy needs and preparing control actions in advance.
Solution Approach 2:
The patent implements a feedback mechanism where target home base stations send control responses back to source base stations after receiving energy saving control requests. This feedback loop allows the system to monitor the effectiveness of energy saving actions, adjust strategies dynamically, and maintain optimal control efficiency while achieving energy reduction goals.
2Area of stationary object
If home base stations are deployed freely to meet coverage demand, then network coverage is improved, but energy management complexity increases due to lack of centralized control
Solution Approach 1:
The patent introduces source base stations as intermediary nodes that receive energy saving control strategies from the core network and distribute them to target home base stations. This intermediary layer simplifies energy management by creating a hierarchical control structure where centralized strategies are efficiently propagated to distributed home base stations, reducing overall management complexity while maintaining extensive network coverage.
3Speed
If home base stations remain active to ensure quick user service, then service responsiveness is improved, but energy consumption increases
Solution Approach 1:
The patent implements dynamic energy saving control where home base stations can transition between active and energy-saving states based on real-time traffic conditions and service requirements. Source base stations send control requests to adjust the operational state of target home base stations, enabling the system to dynamically balance service responsiveness with energy consumption by activating home base stations only when necessary.
Data Source
AI summary
A method and a device for energy saving control in the home base station environment are provided to solve the problem of energy saving control in the home base station environment. In the present invention, a source base station sends an energy saving control request to a target home base station, wherein the energy saving control request comprises the information of the target base station, the information of the source base station, and the type of the energy saving control request. After receiving the energy saving control request, the target home base station performs an energy saving control processing operation, and sends a result of the energy saving control processing to the source base station through an energy saving control response. If the energy saving control processing fails, the energy saving control response further comprises a reason for the failure and/or a wait time. In the present invention, by exchanging energy saving control related messages between the source base station and the target home base station, energy saving control can be implemented on a home base station in time, and the home base station can sleep or be awakened, and thereby effective energy saving of a network in the home base station environment is achieved.