UE Paging Sub-Group Signaling for Reliable Low-Power Reception

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Solution Overview

Problem

Existing 3GPP communication systems face challenges in efficiently managing diverse deployment scenarios and requirements for enhanced mobile broadband (eMBB), ultra-reliable low-latency communications (URLLC), and massive machine type communication (mMTC), particularly in optimizing subcarrier spacing and channel delay spreads to meet varying latency and reliability needs.

Innovation Solution

The implementation of a user equipment (UE) processor that monitors a downlink control channel for paging, receives paging sub-group signaling, and determines a paging sub-group index to facilitate efficient paging functions, including monitoring for paging messages and sub-group identification, enhancing the UE's ability to operate based on specific requirements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the UE monitors every paging message to check for its identification, then the UE ensures it does not miss any paging calls, but the UE consumes excessive power and increases latency

Engineering Contradiction:

Improvepaging reception reliabilityVSAvoidUE power consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent segments the paging message structure into two parts: a first part containing sub-group ID information that all UEs in a group must monitor, and a second part containing individual UE identification information. This segmentation allows UEs to quickly determine whether they need to process the complete paging message, thereby reducing power consumption while maintaining reliable paging reception for relevant UEs.

Inventive Principle:

Principle #1Segmentation

2Reliability

If the network transmits detailed paging information to all UEs, then the network ensures accurate delivery, but the transmission time and processing overhead increase

Engineering Contradiction:

Improvepaging delivery accuracyVSAvoidpaging processing time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent implements preliminary action by transmitting the first part of the paging message containing sub-group ID information before the second part containing detailed UE-specific information. UEs can perform preliminary checks on the sub-group ID to determine early whether they belong to the targeted group, allowing them to discard irrelevant paging messages without processing the complete message, thus reducing processing time while maintaining accurate delivery for relevant UEs.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS12557068B2User equipment and base station involved in paging

Publication Date: 2026.02.17 PANASONIC INTELLECTUAL PROPERTY CORP OF AMERICA

AI summary

The present disclosure relates to a user equipment (UE), comprising the following. A processor of the UE operates a paging function that includes monitoring of a downlink control channel for receiving a paging downlink control information, DCI, and includes receiving of a paging message, the paging DCI and the paging message being transmitted from a base station. A receiver of the UE receives paging sub-group signalling from the base station. The processor determines a paging sub-group index based on the received paging sub-group signalling. The processor determines how to operate the paging function based on whether or not the determined paging sub-group index fulfils a requirement that involves an identification of the UE.