Wake-Up Signal Scheduling for Terminal Energy-Saving States
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Solution Overview
Problem
Existing wireless communication systems face challenges in flexibly controlling the energy-saving reception and transmission states of terminal devices to optimize power consumption, particularly with the introduction of secondary receivers and wake-up signals, which can lead to communication congestion.
Innovation Solution
A method and device that utilize a first signal to determine whether to exit an energy-saving state, using a secondary receiver for low-complexity detection, and a network device sends the first signal on a transmission resource set to manage power consumption and avoid congestion by varying transmit powers and locations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If wake-up signals are used to manage terminal device power consumption, then power consumption is reduced, but communication congestion increases
Solution Approach 1:
The wake-up signal transmission is segmented across multiple transmission resources (time slots, frequency resources, spatial layers). The network device divides the wake-up signal into multiple parts and transmits them on different resources, allowing terminal devices to selectively receive only the segments they need, thereby reducing overall communication congestion while maintaining effective wake-up functionality.
Solution Approach 2:
Terminal devices perform partial detection of wake-up signals by monitoring only specific transmission resources configured for their group or identity, rather than continuously monitoring all resources. This partial action approach reduces the signaling load on the network while ensuring that each terminal can still reliably detect its wake-up signals when needed.
2Reliability
If continuous monitoring of transmission resources is implemented, then communication reliability is improved, but power consumption increases
Solution Approach 1:
Terminal devices transition from continuous monitoring to periodic monitoring of wake-up signals. The device monitors transmission resources at specific intervals or only during configured monitoring occasions, maintaining communication reliability by checking for wake-up signals periodically while significantly reducing power consumption compared to continuous monitoring.
Solution Approach 2:
The terminal device autonomously determines when to monitor and when to sleep based on configured parameters and received signaling. The device self-manages its monitoring behavior by entering sleep mode during non-monitoring periods and automatically waking to check for signals only when necessary, thereby balancing reliability requirements with power conservation without requiring continuous network control.
Data Source
AI summary
A processing method and apparatus, a terminal device, and a network device. In the method, a terminal device receives a first signal, the first signal being used for determining whether to exit an energy-saving receiving and/or transmitting state.