Mobility-Adaptive Wake-Up Signal Periodicity for 5G Networks
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Solution Overview
Problem
Conventional techniques for energy and communication efficiency in 5G networks, such as Discontinuous Reception (DRX) and Wake-Up Signals (WUS), do not optimize energy and signaling overhead effectively.
Innovation Solution
A system and apparatus that regulate the periodicity of Wake-Up Signals (WUS) based on User Equipment (UE) mobility status, using mobility indicators to adjust WUS periodicity to reduce power consumption and signaling overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If conventional DRX and WUS techniques are used, then basic energy efficiency is achieved, but energy consumption and signaling overhead are not optimized effectively
Solution Approach 1:
The patent implements dynamic adjustment of WUS periodicity based on UE mobility status. The network device determines whether the UE is stationary or mobile and adjusts the WUS periodicity accordingly - using longer periodicity for stationary UEs and shorter periodicity for mobile UEs. This dynamic adaptation optimizes both energy consumption and signaling overhead efficiency根据不同 mobility states
Solution Approach 2:
The patent changes the periodicity parameter of WUS based on UE mobility status. By modifying this key parameter dynamically - increasing periodicity for stationary UEs to reduce signaling overhead and decreasing periodicity for mobile UEs to ensure reliable wake-up - the system achieves optimized energy efficiency and communication efficiency without compromising reliability
2Loss of energy
If WUS periodicity is lengthened for stationary UEs, then signaling overhead is reduced, but response time may be increased
Solution Approach 1:
The patent applies different WUS periodicity settings to different UE mobility categories. Stationary UEs receive longer periodicity to minimize signaling overhead, while mobile UEs receive shorter periodicity to ensure timely wake-up. This localized optimization based on UE-specific mobility status resolves the contradiction by tailoring the periodicity to the actual needs of each UE group
Solution Approach 2:
The system dynamically adjusts WUS periodicity based on real-time UE mobility status determination. By continuously monitoring and adapting the periodicity parameter to current mobility conditions, the system ensures that stationary UEs benefit from reduced signaling overhead while mobile UEs maintain adequate response times
3Speed
If WUS periodicity is shortened for mobile UEs, then response time is improved, but energy consumption increases
Solution Approach 1:
The patent implements UE-specific WUS periodicity configuration based on mobility status. Mobile UEs are assigned shorter periodicity to ensure fast wake-up response, while stationary UEs are assigned longer periodicity to reduce power consumption. This localized treatment according to actual UE conditions optimizes the trade-off between response speed and energy consumption
4Device complexity
If fixed WUS periodicity is used, then system complexity is low, but adaptability to different mobility scenarios is poor
Solution Approach 1:
The patent transitions from fixed WUS periodicity to dynamic periodicity adjustment based on UE mobility status determination. The network device evaluates UE mobility and adapts the periodicity parameter accordingly, enabling the system to handle diverse mobility scenarios effectively while maintaining manageable complexity through standardized procedures
Data Source
AI summary
A receiver and a processor regulate periodicity of at least one wake-up signal. The receiver and processor are communicable with at least one user equipment. The receiver receives at least one input signal indicative of mobility status associated with the UE. The processor performs periodicity variance-based processing in association with the received input signal(s) so as to generate at least one output signal which can include at least one periodicity regulated WUS based on UE mobility status.