Paging Early Indication for Low-Power UE Paging Reception
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Solution Overview
Problem
User equipment (UE) in RRC_IDLE or RRC_INACTIVE states experiences high power consumption due to unnecessary paging receptions, particularly for UEs with low paging probability, as they need to monitor each paging occasion despite uncertain message arrival.
Innovation Solution
Implementing a paging early indication (PEI) signal before the paging occasion to inform the UE whether to wake up for PO reception, allowing it to enter a sleep state if no message is expected, thus reducing unnecessary power consumption and switching costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the UE monitors the paging occasion in each paging cycle, then the message detection reliability is improved, but the power consumption increases
Solution Approach 1:
The base station transmits the PEI signal before the paging occasion to provide advance indication about whether paging information will be transmitted. This preliminary action allows the UE to prepare in advance and make informed decisions about whether to wake up for PO reception, thereby avoiding unnecessary power consumption while maintaining reliable message detection when needed
Solution Approach 2:
The PEI signal serves as a feedback mechanism from the base station to the UE, providing information about the upcoming paging occasion. This feedback loop enables the UE to adjust its power consumption behavior based on actual paging needs, resolving the contradiction between reliability and energy efficiency
2Reliability
If the UE receives the PO in each paging cycle, then the message detection capability is improved, but the unnecessary switching operations increase
Solution Approach 1:
By receiving the PEI signal in advance, the UE can perform preliminary determination about whether to execute the complex switching operation to receive the PO. This eliminates unnecessary switching operations while preserving the capability to receive messages when the PEI indicates paging information is transmitted
Data Source
AI summary
Provided are a signal sending method and apparatus, a signal receiving method and apparatus, a device, and a storage medium. The signal receiving method includes: receiving a paging early indication (PEI) signal before a paging occasion (PO), where the PEI signal is used for indicating to a user equipment (UE) whether to receive the PO in a paging cycle; and performing a predefined operation based on the PEI signal.