Secondary Module Signal Processing for Timed Low-Power Wake-Up
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Solution Overview
Problem
The high power consumption of terminal devices in 5G networks due to the use of conventional main functional modules for signal processing, and the inefficiency of wake-up signals leading to prolonged occupation of air interface resources, disrupts the normal operation of communication systems.
Innovation Solution
Implementing a secondary functional module that processes target signals based on a specified signal processing pattern, determining specific times to process or skip signal processing, using different time granularities to avoid conflicts with critical signals, and employing synchronization signals for time alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If a secondary functional module with low power consumption is used to process wake-up signals, then power consumption is reduced, but the wake-up signal occupies air interface resources for a long time
Solution Approach 1:
The patent divides the terminal device into two functional modules: a secondary functional module for low-power wake-up signal processing and a main functional module for full-capability communication. This segmentation allows the device to use only the necessary module at different times, reducing overall power consumption while managing channel occupation efficiently.
Solution Approach 2:
The patent implements periodic wake-up signal transmission with defined time windows and intervals. The secondary functional module processes wake-up signals only during specific time windows, allowing the channel to be released for other uses during non-wake-up periods, thus reducing prolonged channel occupation.
2Device complexity
If the wake-up signal uses simple modulation and coding, then demodulation and decoding operations are simplified, but the transmission rate is low and occupies time-frequency resources for long time
Solution Approach 1:
The patent applies partial action by using simple modulation (e.g., BPSK, QPSK) only for the wake-up signal portion, while reserving full-capability modulation and coding for data transmission handled by the main functional module. This partial simplification reduces demodulation complexity for wake-up detection without permanently limiting overall transmission efficiency.
3Reliability
If the secondary functional module processes the target signal continuously, then receiving performance is improved, but normal transmission of signals in the NR system is affected
Solution Approach 1:
The patent implements periodic processing where the secondary functional module activates only during specific time windows to process wake-up signals, then enters a low-power state. This periodic operation ensures reliable wake-up signal detection while preventing continuous channel occupation that would interfere with normal NR system signal transmission.
Solution Approach 2:
The patent uses preliminary action by configuring the secondary functional module to process synchronization signals and wake-up signals before full data transmission begins. This preliminary processing establishes time and frequency synchronization, ensuring reliable reception without requiring continuous operation that would interfere with subsequent normal signal transmission.
Data Source
AI summary
This application discloses a data processing method, wherein a main functional module of a terminal device obtains a signal processing pattern. The signal processing pattern indicates first time in which a secondary functional module with low power consumption in the terminal device can process a target signal, or indicates second time in which the secondary functional module cannot process the target signal. After the signal processing pattern is obtained, the secondary functional module processes the target signal based on the signal processing pattern, in other words, the secondary functional module processes the target signal only in the first time.