Terminal Power Saving Signal Across Frequency Resources
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Solution Overview
Problem
The challenge in 5G new radio (NR) systems is the higher power consumption compared to LTE systems, necessitating efficient power-saving methods, particularly in optimizing terminal power usage across different frequency domain resources.
Innovation Solution
A communications method where a network device sends a power saving signal indicating N time units, allowing the terminal to determine its sleep or wake-up state on different frequency domain resources, synchronizing states to conserve power.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal operates continuously to ensure good user experience, then user experience is improved, but power consumption increases
Solution Approach 1:
The terminal implements periodic wake-up and sleep cycles on different frequency domain resources. The terminal wakes up at specific time points to monitor for signals, then enters sleep mode to conserve power, creating a periodic pattern of activity and rest that balances user experience with power consumption
2Use of energy by moving object
If the terminal enters sleep state to reduce power consumption, then power consumption is reduced, but response time to service increases
Solution Approach 1:
The terminal performs preliminary actions by waking up in advance of potential service needs and monitoring for signals during wake-up periods. This allows the terminal to detect incoming service requests before entering sleep mode, ensuring timely response when service is required while maintaining power-saving operation
3Measurement precision
If the terminal monitors signals on all frequency domain resources continuously, then signal detection accuracy is improved, but power consumption increases
Solution Approach 1:
The terminal segments its monitoring operation across different frequency domain resources and time periods. Instead of continuously monitoring all frequencies, the terminal divides monitoring into specific time windows on specific frequency resources, achieving adequate signal detection while reducing overall power consumption through selective monitoring
Data Source
AI summary
A terminal receives a power saving signal sent by a network device, where the power saving signal indicates N time units, and where N is greater than 0. The terminal determines a state of the terminal in a first time period corresponding to the N time units on a first frequency domain resource and a state in a second time period corresponding to the N time units on a second frequency domain resource. The state of the terminal includes a sleep state or a wake-up state. The sleep state indicates that the terminal monitors no first signal, and the wake-up state indicates that the terminal monitors a first signal based on a configuration parameter.