Wake Up Signal Segmentation for 5G Terminal Power Reduction
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Solution Overview
Problem
Current 5G wireless communication technologies face high power consumption in terminal devices due to false alarm probabilities of paging, as existing methods do not effectively consider service features when determining wake-up signals.
Innovation Solution
A wake-up signal sending method that categorizes terminal devices based on service features such as uplink/downlink service trigger types and communication probabilities, allowing only devices with similar service features to be woken up, thereby reducing unnecessary monitoring and power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If terminal devices monitor all wake up signals in a paging occasion, then no terminal is missed, but power consumption increases and false alarm probability increases
Solution Approach 1:
The patent segments terminal devices into different groups based on service features (e.g., uplink-triggered, downlink-triggered, bidirectional services). Each group monitors only the wake up signals configured for its specific service type, rather than all wake up signals. This segmentation reduces the monitoring burden on each terminal while ensuring that the appropriate terminals are woken up for their specific service requirements.
2Reliability
If terminal devices monitor all wake up signals, then paging coverage is complete, but false alarm probability increases
Solution Approach 1:
The patent divides wake up signals into different types corresponding to different service features (uplink-triggered WUS, downlink-triggered WUS, bidirectional WUS). Terminals are configured to monitor only the WUS types relevant to their service category. This segmentation ensures that terminals are not falsely woken up by irrelevant WUS types, thereby reducing false alarm probability while maintaining complete paging coverage for the appropriate terminal groups.
3Adaptability or versatility
If wake up signals are configured for all terminal groups, then all terminals can be paged, but device complexity increases
Solution Approach 1:
The patent applies local quality by configuring different wake up signal parameters (such as different radio network temporary identifiers, time-frequency resources, or signal sequences) for different terminal groups based on their service features. Each terminal group has locally optimized WUS configurations tailored to its specific service requirements, rather than using a uniform configuration for all terminals. This reduces overall system complexity while maintaining high adaptability to different service types.
Data Source
AI summary
This application provides a wake up signal sending method and a device. One example method includes: receiving, from a core network device, an identifier of first category to which a terminal device belongs, wherein different categories correspond to different service features; receiving a configuration of a wake up signal from a network device; determining, based on the wake up signal and the first category, weather the terminal device is woken up.