DRX Configuration for 5G UE Power Management
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Solution Overview
Problem
The 5G wireless mobile communication system faces challenges in reducing power consumption, particularly in implementing effective discontinuous reception (DRX) and transmission (DTX) techniques to enhance sustainability and efficiency.
Innovation Solution
The method involves transmitting UECapabilityInformation to the GNB, receiving RRCReconfiguration, and performing DRX operations based on specific configurations, including applying different DRX and DTX operations for various cells to optimize power usage and communication efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If discontinuous reception (DRX) technique is implemented to reduce power consumption, then power efficiency is improved, but communication responsiveness and reliability may deteriorate
Solution Approach 1:
The patent implements dynamic DRX operation where the UE can switch between different DRX configurations (first DRX operation and second DRX operation) based on current communication conditions and network requirements. This dynamic adjustment allows the system to optimize power consumption while maintaining communication responsiveness when needed.
Solution Approach 2:
The patent changes DRX parameters dynamically by receiving RRCReconfiguration messages from the gNB that modify DRX configuration. The UE applies different DRX parameters (such as drx-OnDurationTimer, drx-SlotOffset, drx-InactivityTimer) based on network instructions, allowing flexible adjustment between power saving and communication responsiveness.
2Use of energy by moving object
If different DRX operations are applied for different cells to optimize power usage, then power efficiency is improved, but device complexity increases
Solution Approach 1:
The patent segments the DRX operation into different configurations for different cells (first cell and second cell). Each cell can have its own DRX configuration (first DRX operation or second DRX operation), allowing the UE to optimize power consumption on a per-cell basis while managing complexity through structured configuration management.
Solution Approach 2:
The patent applies DRX operations selectively to different cells rather than uniformly to all cells. The UE can apply first DRX operation to one cell and second DRX operation to another cell, implementing partial optimization where needed while maintaining simpler operation where not required, thus balancing power efficiency with device complexity.
Data Source
AI summary
A Method and Apparatus for discontinuous reception and discontinuous transmission are provided. The method includes transmitting a UECapabilityInformation to the GNB, receiving a RRCReconfiguration form the GNB, performing DRX operation based on the RRCReconfiguration and current-drx2-ConfigId, receiving a first MAC CE from the GNB and performing DRX operation based on the first MAC CE. The performing DRX operation based on the RRCReconfiguration and current-drx-ConfigId comprises applying a first DRX operation for a first cell and a third DRX operation for a second cell.