DRX Grouping for 5G Network Energy Saving
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The 5G wireless communication system faces challenges in network energy saving, particularly due to excessive complexity in managing Discontinuous Reception (DRX) operations across multiple serving cells, which increases energy consumption and complicates network management.
Innovation Solution
The implementation of a method that configures cell-specific active times into DRX groups, allowing for the activation of CELL-DTX and CELL-DRX, where the base station transmits or receives limited signals during specific periods, reducing energy consumption by optimizing the transmission and reception of radio resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple serving cells are configured for a UE, then service versatility and data rate are improved, but UE complexity in managing DRX operation increases
Solution Approach 1:
The patent segments serving cells into DRX groups based on their active time characteristics. Cells with overlapping active times are grouped together, allowing the UE to manage DRX operations at the group level rather than individually for each cell. This segmentation reduces management complexity while preserving the ability to serve multiple cells simultaneously.
Solution Approach 2:
The patent merges DRX management operations for multiple serving cells into a unified approach by grouping them. Instead of managing DRX parameters separately for each cell, the UE applies common DRX configurations to grouped cells, reducing the number of independent management tasks while maintaining service versatility.
2Loss of energy
If DRX operation is implemented for each serving cell, then energy saving is improved, but network management complexity increases
Solution Approach 1:
The patent combines cell-specific active times into DRX groups, allowing the network to manage DRX operations at a grouped level rather than individually for each cell. This merging approach maintains energy saving benefits while reducing network management complexity through standardized group-based configurations.
Solution Approach 2:
The patent creates universal DRX group configurations that can apply to multiple serving cells simultaneously. These group-based DRX settings serve multiple cells with overlapping active times through a single management framework, reducing network management complexity while preserving energy saving effectiveness.
3Adaptability or versatility
If cell-specific active times are not consolidated, then signal transmission flexibility is improved, but energy consumption increases
Solution Approach 1:
The patent dynamically determines DRX group memberships based on active time characteristics of serving cells. The grouping is not static but adapts to the temporal patterns of signal transmission, allowing flexible energy management that responds to actual transmission needs while consolidating active times to reduce overall energy consumption.
Data Source
AI summary
A Method and Apparatus for discontinuous reception and discontinuous transmission are provided. The method includes receiving a radio resource control (RRC) reconfiguration message and performing transmission of CSI report on a specific serving cell. In case that the first timer of the specific serving cell is not running, the terminal performs transmission of a first type CSI report on the serving cell, does not perform transmission of a second type CSI report on the serving cell, and does not perform transmission of a third type CSI report on the serving cell. The RRC reconfiguration message comprises channel status information (CSI) report configuration, one or more first DRX configurations and a second DRX configuration.