DRX Cycle Selection for Battery Power Optimization
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Solution Overview
Problem
User equipment experiences unnecessary battery power consumption due to shorter Discontinuous Receive (DRX) cycle lengths configured for packet switched operations, even when data services are disabled or not needed, leading to increased battery drain without benefits in scenarios like data-only plans or roaming.
Innovation Solution
The system logic in user equipment determines the need for shorter DRX cycle lengths based on service plan details and network configurations, allowing it to passively select longer DRX cycle lengths for CS or PS operations, reducing battery drain by avoiding unnecessary monitoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the network operator configures shorter DRX cycle lengths for packet switched operations, then the user equipment can respond faster to page requests, but the battery power consumption increases unnecessarily when data services are disabled
Solution Approach 1:
The system dynamically adapts the DRX cycle length based on service plan characteristics and network conditions. When data services are disabled or not needed, the system automatically selects longer DRX cycles to reduce power consumption, while switching to shorter cycles when fast response is required. This dynamic adaptation resolves the contradiction by making the DRX cycle length flexible rather than fixed.
Solution Approach 2:
The system changes the DRX cycle parameter based on service plan details and network configurations. By detecting whether data services are enabled or disabled, the system adjusts the DRX cycle length parameter accordingly - using shorter cycles when services are active and longer cycles when they are disabled, thus optimizing both response speed and power consumption.
2Loss of time
If the user equipment uses shorter DRX cycle lengths for page monitoring, then the response time to page requests is reduced, but the battery life is shortened due to increased monitoring frequency
Solution Approach 1:
The system dynamically selects between shorter and longer DRX cycles based on real-time assessment of service plan characteristics and network conditions. This dynamic selection allows the system to minimize response time when necessary while maximizing battery life during periods when data services are not required, effectively balancing the trade-off between response time and battery duration.
Solution Approach 2:
The system changes the DRX cycle parameter based on service plan detection. When data services are disabled, the system switches to longer DRX cycles to extend battery life, while maintaining shorter cycles when services are active, thus adapting the time parameter to match actual service requirements.
3Adaptability or versatility
If the network configures different DRX cycles for CS and PS operations, then the network can optimize for both voice and data services, but the user equipment must monitor multiple cycle lengths increasing complexity
Solution Approach 1:
The system extracts and monitors only the relevant DRX cycle length based on the detected service plan characteristics. Instead of continuously monitoring both CS and PS DRX cycles, the system identifies which cycle length is actually needed based on whether data services are enabled, thereby reducing monitoring complexity while maintaining network optimization capabilities.
Solution Approach 2:
The system applies different monitoring strategies to different service domains based on local conditions. When data services are disabled, the system focuses only on CS DRX cycle monitoring, ignoring PS DRX cycle monitoring. This localized approach reduces overall complexity while maintaining adaptability to service requirements.
Data Source
AI summary
A system includes a processor and a memory connected with the processor, the memory to store logic. A DRX module also connects with the processor. The DRX module alternatively provides both a CS DRX cycle length and a PS DRX cycle length observed from network configuration. The processor executes the logic stored in the memory to instruct the DRX module to use a longer of a CS DRX cycle length or a PS DRX cycle length.