Wake-Up Signal Resource Mapping for Multi-Terminal Paging
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Solution Overview
Problem
Existing wake-up signals in mobile communication systems are not optimized for efficiently carrying information for multiple terminals or terminal sets, particularly in low-power wake-up signals using MC-ASK or MC-FSK waveforms, limiting their ability to support a larger number of terminals or terminal sets.
Innovation Solution
The solution involves transmitting wake-up signals corresponding to multiple terminals or terminal sets on different frequency-domain and/or time-domain resources, utilizing MC-ASK or MC-FSK waveforms, to support the transmission of wake-up signals for a plurality of terminals or terminal sets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If wake-up signals for multiple terminals are carried on the same frequency-domain and time-domain resources, then the system complexity is reduced, but the ability to support a larger number of terminals or terminal sets is limited
Solution Approach 1:
The patent segments wake-up signals by assigning different frequency-domain resources (e.g., different subcarriers or frequency bands) and/or time-domain resources (e.g., different time slots or symbols) to different terminals or terminal sets. This segmentation enables multiple terminals to be addressed simultaneously without increasing overall system complexity, as each terminal can independently monitor its designated resources.
Solution Approach 2:
The patent introduces additional dimensions (frequency-domain and time-domain resources) to differentiate wake-up signals for multiple terminals. By utilizing these dimensional resources, the system can support a larger number of terminals while maintaining manageable complexity, as terminals only need to monitor specific combinations of frequency and time resources assigned to them.
2Reliability
If terminals monitor all frequency-domain and time-domain resources for wake-up signals, then no wake-up signal is missed, but power consumption increases
Solution Approach 1:
The patent applies local quality by assigning specific frequency-domain and time-domain resources to specific terminals or terminal sets. Each terminal only needs to monitor its locally assigned resources rather than all resources, thereby maintaining reliable wake-up signal detection while significantly reducing power consumption. The terminal's monitoring activity is localized to relevant resource combinations.
3Use of energy by moving object
If wake-up signals use MC-ASK or MC-FSK waveforms, then power saving is improved, but the ability to carry information for multiple terminals is limited
Solution Approach 1:
The patent overcomes the information carrying capacity limitation of MC-ASK/MC-FSK waveforms by utilizing frequency-domain and time-domain dimensions. Instead of relying solely on waveform variations, the system encodes terminal identification information across multiple frequency resources and/or time resources, enabling MC-ASK/MC-FSK to support multiple terminals while maintaining their power-saving advantages.
Data Source
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AI summary
A wake-up signal sending method and apparatus, a wake-up signal receiving method and apparatus, and a device and a storage medium, which belong to the technical field of mobile communications. The method is executed by a network device, and comprises: sending wake-up signals (801), wherein the wake-up signals corresponding to at least two terminals or at least two terminal sets are carried by different frequency-domain resources and/or time-domain resources. The solution supports the sending of wake-up signals for a plurality of terminals or a plurality of terminal sets.