Adaptive Wake-Up Signaling for 5G UE Power Saving
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Solution Overview
Problem
Current 5G networks and user equipment lack intelligence to adapt Wake-Up Signal (WUS) operation based on actual usage patterns, leading to inefficient power consumption in both light and heavy loading scenarios, with redundant wake-up operations consuming more power than necessary.
Innovation Solution
Implement an adaptive approach to WUS management that dynamically enables or disables WUS based on real-time analysis of user equipment data usage patterns, using threshold-based scenario determination and intelligent switching between WUS monitoring and Physical Downlink Control Channel (PDCCH) monitoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If WUS monitoring is enabled to reduce unnecessary wake-ups during light loading scenarios, then power consumption is reduced, but in heavy loading scenarios the UE must wake up twice (once for WUS monitoring and once for CDRX on-duration) which increases power consumption
Solution Approach 1:
The patent implements dynamic WUS operation where the UE monitors data usage patterns and adaptively switches between WUS monitoring and PDCCH monitoring modes based on detected usage scenarios (light loading vs. heavy loading). This transforms the static WUS configuration into a dynamic system that adjusts its behavior in real-time to optimize power consumption for each specific usage scenario.
Solution Approach 2:
The patent changes the operational parameters of WUS monitoring based on detected usage patterns. By monitoring data activity during CDRX cycles and comparing against thresholds, the system dynamically adjusts whether to monitor DCI format 2_6 (WUS) or directly monitor PDCCH, effectively changing the monitoring parameter to match the current usage scenario and optimize power consumption.
2Reliability
If the UE monitors DCI format 2_6 for WUS in heavy loading scenarios, then wake-up indication is received, but the UE performs redundant wake-up operations consuming more power than simply monitoring PDCCH during CDRX on-duration
Solution Approach 1:
The UE performs self-service by autonomously monitoring its own data usage patterns and making intelligent decisions about whether to enable or disable WUS monitoring based on its detected usage scenario. This self-awareness allows the UE to avoid redundant wake-up operations in heavy loading scenarios while maintaining reliable wake-up indication in light loading scenarios, optimizing energy efficiency without external intervention.
Solution Approach 2:
The system implements feedback by continuously monitoring data usage patterns during CDRX cycles and using this feedback to dynamically adjust WUS monitoring behavior. The UE compares monitored data activity against thresholds and adjusts its monitoring strategy accordingly, creating a closed-loop system that optimizes power consumption based on actual usage conditions.
3Ease of operation
If static WUS implementation is used to simplify system operation, then ease of operation is improved, but power consumption optimization across diverse application scenarios is lost
Solution Approach 1:
The patent transforms the static WUS operation into a dynamic system that automatically adapts to different usage scenarios. By monitoring data patterns and switching between WUS and PDCCH monitoring modes, the system maintains operational simplicity from the user perspective while internally optimizing power consumption for each specific scenario through automated scenario detection and mode switching.
Data Source
AI summary
The method for adaptive WUS management in UE operating in wireless communication networks comprises monitoring data usage patterns over a predetermined period to generate usage scenarios, determining a specific usage scenario based on the monitored patterns, and dynamically enabling or disabling WUS based on the determined scenario. The UE analyzes data activity during CDRX cycles and compares usage patterns against thresholds calculated from network configuration parameters including CDRX long cycle offset and Power Saving offset configurations. For light loading scenarios with sporadic data activity, WUS monitoring of DCI format 2_6 is maintained to achieve power savings. For heavy loading scenarios with continuous data activity, WUS monitoring is disabled and the UE directly monitors PDCCH during CDRX on-duration. The adaptive method manages power consumption across diverse application scenarios and maintains compatibility with 3GPP standards.