LP-WUS Assistance Signaling for PDCCH Sleep Interval Coordination
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In existing communication technologies, network side devices often lack knowledge of a terminal's low power wake-up signal (LP-WUS) capability or duration, leading to suboptimal message transmission and poor communication performance.
Innovation Solution
The terminal sends LP-WUS assistance information to the network side device, including expected time intervals and preference information to help schedule and transmit messages effectively, ensuring the terminal does not monitor the physical downlink control channel or receive data within specified intervals, thereby improving communication performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the network side device sends messages without knowing the terminal's LP-WUS capability or duration, then the network side device can operate with simpler information requirements, but the communication performance of the terminal deteriorates
Solution Approach 1:
The terminal sends LP-WUS assistance information to the network side device before the network side device sends messages. This preliminary action provides the network with necessary capability information in advance, enabling optimized message transmission that improves communication performance without adding significant complexity to the overall system.
2Reliability
If the terminal monitors the physical downlink control channel continuously, then the terminal can receive messages in time, but the power consumption of the terminal increases
Solution Approach 1:
The terminal uses LP-WUS assistance information to determine periodic monitoring intervals for the physical downlink control channel. Instead of continuous monitoring, the terminal monitors at specific periodic intervals, which significantly reduces power consumption while maintaining message reception reliability through optimized timing based on the assistance information.
Data Source
AI summary
An assistance information sending method and receiving method, a terminal, and a network side device. The assistance information sending method in embodiments of this application includes: A terminal sends LP-WUS assistance information, where the LP-WUS assistance information is used to assist in at least one of the following: sending an LP-WUS to the terminal; scheduling the terminal; sending a control command to the terminal; and sending data to the terminal, where the LP-WUS assistance information includes at least one of the following: an expected time interval and preference information; where the terminal does not monitor a physical downlink control channel PDCCH or does not receive data sent by a network within the expected time interval; and the preference information includes at least one of the following: sleep mode preference information and LP-WUS indication content preference information.