Small Cell eNodeB State Switching for Interference and Energy
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Solution Overview
Problem
The dense deployment of small cells in wireless communication networks leads to significant interference and increased energy consumption, necessitating a method to efficiently switch small cell eNodeB between active and sleep states while ensuring compatibility with various user equipment (UE) and network requirements.
Innovation Solution
A state switching method and device for small cell eNodeB that acquires and implements state switching information, allowing flexible selection of switching modes based on UE access status, interference coverage, and network performance, including dynamic, static, and semi-static switching modes to optimize power consumption and user satisfaction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If small cells are densely deployed to improve network capacity and reduce coverage holes, then network capacity and coverage are improved, but interference between small cells increases and energy consumption increases
Solution Approach 1:
The patent implements dynamic state switching for small cell eNodeBs between active and sleep states. The system continuously monitors traffic load and UE access status, and dynamically adjusts the operational state of small cells accordingly. This dynamic adaptation allows the network to maintain high capacity when needed while reducing energy consumption during low-traffic periods, directly resolving the contradiction between network productivity and energy loss.
2Loss of energy
If small cell eNodeB enters sleep state to reduce energy consumption, then energy consumption is reduced, but UE access and network responsiveness may be affected
Solution Approach 1:
The patent implements preliminary actions by notifying UEs in advance before small cell eNodeB transitions to sleep state. The system sends notifications to UEs about upcoming state changes, allowing them to prepare for potential handovers or access modifications. This preliminary notification mechanism ensures that UE access reliability is maintained even when small cells enter sleep state, as UEs can proactively adjust their connection strategies.
Solution Approach 2:
The system continuously monitors UE access status, traffic load, and network conditions, using this feedback to dynamically adjust small cell state transitions. When UE access attempts are detected or traffic load increases, the system receives feedback and prevents unnecessary sleep state transitions or triggers immediate activation. This feedback loop ensures that energy savings are achieved without compromising UE access reliability.
3Adaptability or versatility
If multiple sleep modes and activating modes are implemented for compatibility, then adaptability to different UEs is improved, but system complexity increases
Solution Approach 1:
The patent implements multiple sleep modes (immediate sleep, delayed sleep, partial sleep) and activating modes (immediate activation, gradual activation) by changing operational parameters of the small cell eNodeB. Each mode represents a different configuration of timing, power levels, and activation thresholds. The system selects appropriate parameter configurations based on UE type, traffic conditions, and network requirements, achieving broad adaptability while managing complexity through parameterization rather than structural complexity.
Data Source
AI summary
The present invention relates to the field of wireless communications. Disclosed are a state switching method and device for a small cell base station and a computer storage medium. The method comprises: acquiring state switching information comprising a state switching mode and performing state switching on the small cell base station according to the state switching information.