Terminal DRX Configuration for BWP Adaptation
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Solution Overview
Problem
Current Discontinuous Reception (DRX) configurations in communication systems are inflexible, failing to meet service transmission requirements on different Bandwidth Parts (BWP) due to fixed DRX parameters, which limits scheduling flexibility and power savings.
Innovation Solution
Configuring multiple DRX configurations for terminal devices, allowing them to select an appropriate configuration for PDCCH detection based on specific BWP and resource configurations, thereby improving DRX performance and reducing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single fixed DRX configuration is used, then device complexity is reduced, but adaptability to different service transmission requirements on different BWPs deteriorates
Solution Approach 1:
The patent divides a single DRX configuration into multiple DRX configurations, each associated with different BWPs and service types. The terminal device maintains multiple DRX configurations simultaneously, allowing different configurations to be applied to different service scenarios and BWPs, thereby resolving the contradiction between simplicity and adaptability.
Solution Approach 2:
The patent introduces dynamic switching between multiple DRX configurations based on service requirements, BWP changes, and network conditions. The terminal device can flexibly select and switch between different DRX configurations according to actual needs, transforming the static single configuration into a dynamic multi-configuration system that adapts to varying requirements.
2Ease of operation
If DRX parameters are fixed, then configuration simplicity is maintained, but scheduling flexibility on different BWPs deteriorates
Solution Approach 1:
The patent applies different DRX parameters locally to different BWPs and service types. Each BWP can have its own optimized DRX configuration tailored to specific service requirements (e.g., eMBB, URLLC, mMTC), allowing local optimization without requiring complete reconfiguration of the entire system, thus maintaining ease of operation while improving scheduling flexibility.
Solution Approach 2:
The patent enables changing DRX parameters (such as drx-OnDurationTimer, drx-InactivityTimer, drx-LongCycle, drx-ShortCycle) based on different service types and BWP configurations. The network can dynamically adjust these parameters to optimize power saving and scheduling performance for different scenarios, transforming fixed parameters into adaptable variables.
3Reliability
If the terminal device monitors PDCCH continuously, then reliability of data reception is improved, but power consumption increases
Solution Approach 1:
The patent implements periodic PDCCH monitoring based on DRX cycles, where the terminal device alternates between active monitoring periods and sleep periods. During active periods, the terminal monitors PDCCH for incoming data; during sleep periods, monitoring is suspended to save power. This periodic action maintains data reception reliability while significantly reducing average power consumption compared to continuous monitoring.
Solution Approach 2:
The patent applies partial monitoring action by configuring the terminal to monitor PDCCH only during specific time windows (OnDurationTimer) and only when necessary (based on service requirements and network indications). This partial monitoring approach ensures reliable reception of critical data while avoiding unnecessary monitoring that would waste power, achieving a balance between reliability and power consumption.
Data Source
AI summary
Discontinuous transmission method and device Disclosed are a discontinuous transmission method and device, capable of improving the discontinuous transmission performance of a terminal device and further reducing the power consumption of the terminal device. The method comprises: the terminal device determines at least one DRX configuration in multiple DRX configurations; and the terminal device detects a physical downlink control channel (PDCCH) according to the at least one DRX configuration.