5G Cell Sleep-State Management for Service-Responsive Energy Saving
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The energy consumption of 5G networks has significantly increased compared to 4G networks, leading to higher operation and maintenance costs for operators, and existing methods for dynamically adjusting network deployment to save energy are inadequate for dynamically varying service demands.
Innovation Solution
Implementing Discontinuous Transmission (DTX) and Discontinuous Reception (DRX) configurations in cells to manage energy consumption by periodically activating and deactivating network components based on service demand, with separate configurations for different Radio Resource Control (RRC) states and service types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If 5G network components are continuously activated to meet service demands, then service quality is improved, but energy consumption increases significantly
Solution Approach 1:
The patent implements cell DTX and cell DRX mechanisms that periodically activate and deactivate cell components based on service demand. The network device configures parameters such as dtxPattern, dtxPeriod, and drxOnDuration to control periodic transmission and reception cycles, allowing cells to switch between active and sleep states, thereby reducing energy consumption while maintaining service quality during active periods
Solution Approach 2:
The patent introduces dynamic cell state management where cells can transition between active, partial, and sleep states based on real-time service demands. The network device dynamically adjusts configuration parameters including cell activation/deactivation timing, measurement resource allocation, and mobility management settings to optimize the balance between service quality and energy consumption
2Use of energy by moving object
If cell DTX and cell DRX are configured to save energy, then energy consumption is reduced, but service responsiveness may deteriorate
Solution Approach 1:
The patent configures measurement resources in advance for both active and deactivated cell states. The network device pre-configures measurementObjectList, reportingConfig, and other measurement parameters so that when cells are deactivated for energy saving, measurement functions remain available and can quickly resume service when activated, preventing service responsiveness deterioration
Solution Approach 2:
The patent implements measurement and reporting mechanisms that provide feedback to the network device about cell conditions and service demands. The terminal device performs measurements on configured resources and reports back, enabling the network device to make informed decisions about cell activation/deactivation timing, ensuring service responsiveness is maintained by activating cells before demand peaks
3Reliability
If measurement resources are configured for deactivated cells, then mobility management is improved, but device complexity increases
Solution Approach 1:
The patent creates a universal measurement configuration framework where a single set of measurement resources can serve both active and deactivated cell states. The network device configures measurementObjectList and reportingConfig that apply regardless of cell state, allowing the same measurement infrastructure to support mobility management for cells in any state, thereby reducing overall system complexity
Solution Approach 2:
The patent segments measurement configurations into cell-specific and state-specific components. The network device configures cell-specific measurement resources that can be independently activated or deactivated based on cell state, while maintaining a unified measurement framework. This segmentation allows flexible management of measurement resources without increasing overall configuration complexity
Data Source
AI summary
An energy-saving method includes: a terminal receives first configuration information sent by a network device. The first configuration information is for configuring a cell Discontinuous Transmission (DTX) and/or a cell Discontinuous Reception (DRX).