Beam-Specific Paging Early Indication Signaling for UE Power Savings

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Solution Overview

Problem

Existing paging mechanisms in 5G networks, particularly in multi-beam deployments, result in increased signaling overhead and inefficient energy consumption due to unnecessary synchronization signal block monitoring by UEs, which can be improved through the implementation of beam-specific paging early indication (PEI) configurations.

Innovation Solution

The network informs UEs about the presence and resource configuration of PEI on specific beams, allowing UEs to selectively monitor for PEI only on relevant beams based on their signal quality, thereby reducing unnecessary receptions and signaling overhead.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the network transmits PEI on all beams to ensure comprehensive paging coverage, then paging reliability is improved, but signaling overhead increases

Engineering Contradiction:

Improvepaging coverageVSAvoidsignaling overhead

Core Design Contradiction:

ReliabilityVSQuantity of substance

Solution Approach 1:

The patent segments the beam set into multiple subsets, where each subset is associated with specific UEs based on their channel conditions. UEs monitor PEI only on beams within their assigned subset rather than all beams, reducing signaling overhead while maintaining reliable paging coverage for each UE group.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent applies local quality by assigning different PEI transmission configurations to different beam subsets. Each UE is configured to monitor PEI on specific beams matched to its channel characteristics, optimizing the balance between paging reliability and signaling overhead for local conditions.

Inventive Principle:

Principle #3Local quality

2Measurement precision

If UEs monitor SSB bursts before every paging occasion to maintain synchronization, then synchronization accuracy is improved, but energy consumption increases

Engineering Contradiction:

Improvesynchronization accuracyVSAvoidUE energy consumption

Core Design Contradiction:

Measurement precisionVSUse of energy by moving object

Solution Approach 1:

The patent uses PEI as a preliminary indication transmitted before the paging occasion to inform UEs whether paging messages will be sent. UEs monitor PEI on selected beams instead of continuously monitoring all SSB bursts, achieving synchronization maintenance with reduced energy consumption by acting preliminarily and selectively.

Inventive Principle:

Principle #10Preliminary action

3Reliability

If the network uses more beams for paging transmission to cover more areas, then paging coverage is improved, but device complexity increases

Engineering Contradiction:

Improvepaging coverageVSAvoidbeam management complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent divides the complete beam set into multiple subsets and assigns different subsets to different UEs or UE groups. This segmentation reduces the number of beams each UE needs to monitor, thereby reducing device complexity while maintaining comprehensive paging coverage through the coordinated use of all beam subsets by the network.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentEP4068872B1Signaling of beam-specific paging early indication

Publication Date: 2025.09.10 NOKIA TECHNOLOGIES OY

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AI summary

It is provided a method comprising: checking if a base station is configured to transmit a paging early indication to a terminal over a first beam; causing the base station to inform the terminal that the base station is configured to transmit the paging early indication over the first beam if the base station is configured to transmit the paging early indication over the first beam.