LP-WUS Signal Aggregation for Low-Power Wake-Up Coverage
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The low power wake up receiver (LP-WUR) in wireless communication systems has a limited coverage range and transmission performance due to its simple coding and modulating modes, which are necessary for low power operation.
Innovation Solution
The network device transmits a first target signal comprising K LP-WUS signals to improve coverage and transmission performance by aggregating LP-WUSs, enhancing the wake-up mechanism for terminal devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If simple coding and modulating modes are used for LP-WUS to maintain low power operation, then power consumption is reduced, but coverage range and transmission performance deteriorate
Solution Approach 1:
The patent combines multiple LP-WUS signals (K first signals) into a single target signal for transmission. By aggregating multiple low-power wake-up signals, the system maintains the low power consumption advantage of simple coding/modulation while achieving improved coverage range and transmission performance through signal combination at the receiver side.
2Device complexity
If simple coding and modulating modes are used for LP-WUS to maintain low power operation, then device complexity is reduced, but transmission performance deteriorates
Solution Approach 1:
The patent merges K simple LP-WUS signals into a composite target signal. This approach keeps the individual signal components simple (maintaining low device complexity) while the combined signal achieves better transmission performance and reliability through diversity gain and improved signal-to-noise ratio.
3Area of stationary object
If multiple LP-WUS signals are aggregated in the target signal, then coverage range and transmission performance are improved, but signal processing complexity increases
Solution Approach 1:
The patent segments the wake-up signal transmission into K separate first signals that are aggregated into one target signal. This segmentation allows the system to process and transmit multiple signals in a structured manner, improving coverage while managing processing complexity through organized signal handling and reception procedures.
Data Source
Figure 1~3
Figure 4~6
Figure 7A~7C
AI summary
Wireless communication methods, network devices and terminal devices. A wireless communication method comprises: a network device sending a first target signal, wherein the first target signal comprises K first signals, and the first signals are used for waking up a main receiver of a terminal device, or the first target signal is used for waking up the main receiver of the terminal device, K being a positive integer.