5G Paging Occasion Alignment Across RRC Idle and Inactive States

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Solution Overview

Problem

The 5G communication system faces uplink coverage issues due to the use of high frequency bands, necessitating enhancements in paging methods to improve coverage and efficiency.

Innovation Solution

A method for paging in 5G systems that involves determining the paging frame and index based on specific parameters, ensuring consistent paging occasions across different RRC states, thereby optimizing power consumption and network efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Power

If high frequency bands are used for 5G communication, then data rate is improved, but uplink coverage deteriorates

Engineering Contradiction:

Improvedata rateVSAvoiduplink coverage

Core Design Contradiction:

PowerVSObject-affected harmful factors

Solution Approach 1:

The base station is divided into a central unit and multiple distributed units, allowing paging messages to be transmitted through multiple distributed units simultaneously. This segmentation enables the system to maintain high data rates while improving uplink coverage by utilizing multiple transmission points.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Paging messages are merged and transmitted through both the central unit and distributed units using the same time-frequency resources. This combining approach allows the system to achieve both high data rates and improved uplink coverage by leveraging multiple transmission paths.

Inventive Principle:

Principle #5Merging (Combining)

2Adaptability or versatility

If different T values are used for paging frame determination in RRC_IDLE and RRC_INACTIVE states, then state-specific optimization is achieved, but paging occasion consistency deteriorates

Engineering Contradiction:

Improvestate-specific optimizationVSAvoidpaging occasion consistency

Core Design Contradiction:

Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

A single T value is used for determining paging frames in both RRC_IDLE and RRC_INACTIVE states. This universal approach ensures that the same paging occasion is used across both states, providing consistency while still allowing state-specific optimizations through other parameters.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

While keeping the T value consistent across states, the system allows other parameters such as the number of paging occasions and monitoring patterns to be adjusted based on the specific RRC state, achieving state-specific optimization without sacrificing paging occasion consistency.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS12501401B2Method and apparatus for monitoring paging in wireless mobile communication system

Publication Date: 2025.12.16 BLACKPIN INC

AI summary

A method and apparatus for paging is provided. Method of terminal for paging includes receiving SystemInformationBlock1, determining the paging frame based at least in part on the first T. determining the index of paging occasion based at least in part on the second T and monitoring paging occasion per DRX cycle.