DRX Configuration Segmentation for Carrier Aggregation
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Solution Overview
Problem
In wireless communication systems, especially in carrier aggregation scenarios, the inconsistency in DRX group services leads to a lack of scheduling flexibility, as a single wake-up bit is used for both primary and secondary cells, which is inappropriate after dual DRX is introduced, resulting in suboptimal power management and communication efficiency.
Innovation Solution
The user equipment (UE) reports auxiliary information for at least two DRX groups to the network, allowing the network to determine and configure DRX configurations separately for each group based on communication capabilities, service requirements, and power consumption, enabling the use of distinct wake-up signals and timers for each group.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single wake-up bit is used for both primary and secondary cells in carrier aggregation, then device complexity is reduced, but scheduling flexibility and power management performance deteriorate
Solution Approach 1:
The patent segments the wake-up signal configuration by introducing separate wake-up bits for primary cells and secondary cells. This allows independent control and monitoring of wake-up signals for different cell types, thereby improving scheduling flexibility without significantly increasing overall system complexity. The segmentation enables tailored DRX configurations for each cell type while maintaining manageable device complexity through structured separation.
Solution Approach 2:
The patent applies local quality by configuring different wake-up signal parameters specifically for secondary cells versus primary cells. Secondary cells can have customized wake-up bit settings, monitoring configurations, and DRX parameters optimized for their specific traffic patterns and service requirements, while primary cells maintain their own standardized configuration. This localized optimization enhances overall scheduling flexibility.
2Device complexity
If DRX configurations are aligned across different DRX groups, then device complexity is reduced, but power consumption optimization and communication efficiency deteriorate
Solution Approach 1:
The patent segments DRX configuration management by introducing separate DRX parameter sets for different DRX groups (e.g., first DRX group for primary cells, second DRX group for secondary cells). Each group can have independently optimized parameters such as onDurationTimer, drx-InactivityTimer, and drx-RetransmissionTimer, allowing the UE to optimize power consumption for each cell type according to its specific traffic characteristics while maintaining manageable complexity through structured separation.
Solution Approach 2:
The patent enables local quality optimization by allowing different DRX parameters to be configured for different DRX groups based on their specific requirements. For example, secondary cells handling enhanced Mobile Broadband (eMBB) traffic can have shorter onDurationTimers, while primary cells handling Ultra-Reliable Low-Latency Communication (URLLC) traffic can have longer timers. This localized optimization reduces overall power consumption by matching DRX parameters to actual traffic patterns.
3Adaptability or versatility
If separate wake-up signals are configured for different DRX groups, then scheduling flexibility and power management are improved, but device complexity and configuration overhead increase
Solution Approach 1:
The patent manages the complexity of separate wake-up signals through segmentation by organizing them into distinct DRX groups with clear functional boundaries. The first DRX group for primary cells and the second DRX group for secondary cells each have their own wake-up signal configurations, but this segmentation is managed through standardized protocols and procedures that prevent complexity from becoming unmanageable. The separation allows independent optimization while maintaining overall system coherence.
Solution Approach 2:
The patent applies dynamics by making wake-up signal configurations adaptable and configurable based on actual network conditions and service requirements. The network can dynamically adjust whether to use separate or aligned wake-up signals for different DRX groups depending on traffic patterns, UE capabilities, and network load. This dynamic configurability allows the system to optimize scheduling flexibility when needed while reducing complexity when conditions permit.
Data Source
AI summary
An information processing method, including: reporting auxiliary information for at least two discontinuous reception (DRX) groups, where the auxiliary information is configured for a network to determine DRX configurations for the at least two DRX groups.