Wireless Paging DCI Scheduling for Lower UE Monitoring Overhead

Solution Overview

Problem

Existing wireless communication systems face inefficiencies in signal transmission and reception procedures, particularly in optimizing power consumption and overhead for paging operations in user equipment (UE) across different scheduling slots.

Innovation Solution

The method involves detecting a paging early indicator (PEI) to determine whether downlink control information (DCI) for paging is scheduled in the same slot or a different slot through cross-slot scheduling, allowing UE to optimize power consumption and overhead by adjusting its reception strategy based on this indication.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the UE monitors paging DCI in every slot to ensure reliable paging reception, then the reliability of paging reception is improved, but the power consumption and processing overhead increase

Engineering Contradiction:

Improvepaging reception reliabilityVSAvoidUE power consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The base station transmits a paging early indicator (PEI) before the paging occasion to provide advance notification about whether paging DCI will be transmitted in the upcoming slot. This preliminary action allows the UE to prepare accordingly and make informed decisions about whether to fully monitor the paging occasion, thereby reducing unnecessary power consumption while maintaining reliable paging reception when needed.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system dynamically adjusts UE behavior based on the PEI indication. When PEI indicates paging DCI will be transmitted, the UE activates full monitoring mode; when PEI indicates no paging DCI, the UE enters a low-power state. This dynamic adaptation optimizes the balance between reliability and power consumption by making monitoring behavior flexible rather than static.

Inventive Principle:

Principle #15Dynamics

2Reliability

If the UE monitors paging DCI in every slot to ensure reliable paging reception, then the reliability of paging reception is improved, but the processing overhead increases

Engineering Contradiction:

Improvepaging reception reliabilityVSAvoidUE processing overhead

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The base station transmits a paging early indicator (PEI) before the paging occasion to provide advance notification about whether paging DCI will be transmitted in the upcoming slot. This preliminary action allows the UE to prepare accordingly and make informed decisions about whether to fully monitor the paging occasion, thereby reducing unnecessary power consumption while maintaining reliable paging reception when needed.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system dynamically adjusts UE behavior based on the PEI indication. When PEI indicates paging DCI will be transmitted, the UE activates full monitoring mode; when PEI indicates no paging DCI, the UE enters a low-power state. This dynamic adaptation optimizes the balance between reliability and power consumption by making monitoring behavior flexible rather than static.

Inventive Principle:

Principle #15Dynamics

3Use of energy by moving object

If cross-slot scheduling is used for paging operations, then the power consumption and overhead are optimized, but the latency for paging reception increases

Engineering Contradiction:

ImproveUE power consumptionVSAvoidpaging reception latency

Core Design Contradiction:

Use of energy by moving objectVSLoss of time

Solution Approach 1:

The base station transmits a paging early indicator (PEI) before the paging occasion to provide advance notification about whether paging DCI will be transmitted in the upcoming slot. This preliminary action allows the UE to prepare accordingly and make informed decisions about whether to fully monitor the paging occasion, thereby reducing unnecessary power consumption while maintaining reliable paging reception when needed.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system dynamically adjusts UE behavior based on the PEI indication. When PEI indicates paging DCI will be transmitted, the UE activates full monitoring mode; when PEI indicates no paging DCI, the UE enters a low-power state. This dynamic adaptation optimizes the balance between reliability and power consumption by making monitoring behavior flexible rather than static.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS12581456B2Method and apparatus for transmitting and receiving wireless signal in wireless communication system

Publication Date: 2026.03.17 LG ELECTRONICS INC

AI summary

User equipment according to an embodiment of the present disclosure may detect first DCI for a paging early indicator (PEI), monitor second DCI for paging on a paging occasion (PO) of a first slot related to the PEI, on the basis of detecting the first DCI, and receive a paging message through a PDSCH scheduled by the second DCI, and preferably, the user equipment may determine, on the basis of the first DCI for the PEI, before the monitoring of the second DCI on the PO, whether the second DCI is configured to schedule the PDSCH on the first slot on the basis of same-slot scheduling or configured to schedule the PDSCH on a second slot different from the first slot on the basis of cross-slot scheduling.