Common DRX Configuration for Multi-Connectivity UE Power
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In wireless communication systems, the mismatched DRX configurations between multiple eNodeBs lead to increased power consumption in User Equipment (UE) as it remains in a partial sleep state for most of the time, due to independent DRX cycle states from different eNBs, resulting in inefficient power management.
Innovation Solution
A method for applying a common DRX configuration at the UE in a multi-connectivity mode, where the UE detects a common DRX criterion and splits or delays its DRX states to align with another DRX cycle, forcing transitions to optimize power consumption by ensuring both cycles are in sleep or wake states together for maximum duration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate DRX configurations are applied for each eNB in multi-connectivity mode, then each eNB can independently manage its DRX operations, but the UE cannot enter complete sleep state due to mismatched DRX cycles, leading to increased power consumption
Solution Approach 1:
The patent merges multiple independent DRX configurations into a unified common DRX configuration that is shared across all serving eNBs. The network side (MeNB) coordinates and aligns the DRX cycles of different eNBs, allowing the UE to enter complete sleep state when all eNBs are in DRX OFF state simultaneously, thereby reducing power consumption while maintaining independent DRX management capability
Solution Approach 2:
The patent creates a universal DRX configuration that serves multiple eNBs simultaneously. Instead of having separate DRX configurations for each eNB, a single common DRX configuration is established that can be applied across all serving cells, enabling the UE to efficiently manage sleep and wake states for multiple connections
2Adaptability or versatility
If multiple independent DRX configurations are maintained, then each eNB can serve different users with customized DRX parameters, but the UE remains in partial sleep state for most duration, reducing power management efficiency
Solution Approach 1:
The patent combines multiple customized DRX configurations into a harmonized common DRX configuration. The network side maintains the ability to customize DRX parameters for different users and eNBs, but coordinates these configurations to ensure alignment, allowing the UE to achieve complete sleep state when all configurations are synchronized in their OFF periods
3Ease of operation
If separate DRX operations are allowed for MeNB and SeNB, then each eNB can independently control its DRX timers and active time, but it becomes difficult for both eNBs to have same configuration, resulting in high power consumption at UE
Solution Approach 1:
The patent introduces the MeNB as an intermediary that coordinates between SeNB and UE for DRX configuration management. The MeNB receives DRX configuration from SeNB, aligns it with its own configuration, and provides a unified common DRX configuration to the UE. This intermediary role enables independent DRX control at each eNB while ensuring synchronization to reduce UE power consumption
Data Source
AI summary
Embodiments herein provide a method applying a common Discontinuous Reception (DRX) configuration at a User Equipment (UE) in a multi-connectivity mode. The method includes detecting, by the UE, a common DRX criterion. Further, the method includes forcing, by the UE, the DRX ON state of the first DRX cycle to a DRX OFF state. Further, the method includes forcing, by the UE, the first DRX cycle to wake up when one of a second DRX cycle transits from the DRX OFF state to the DRX ON state and a common DRX time period expires.