Access Barring Check Mechanism for Wireless Signaling Reduction

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Solution Overview

Problem

In wireless communication systems, the existing access barring check mechanisms require significant signaling for transmission of access barring parameters across 64 defined access categories, leading to increased network signaling and inefficiency.

Innovation Solution

A method and apparatus for user equipment (UE) to perform access barring checks by receiving a list of barring information including a barring factor and time, mapping access categories to corresponding barring information, and allowing or barring uplink transmissions based on this information, thereby reducing network signaling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If access barring parameters are defined for each of the 64 access categories, then access control precision is improved, but network signaling overhead increases

Engineering Contradiction:

Improveaccess control precisionVSAvoidnetwork signaling overhead

Core Design Contradiction:

Measurement precisionVSQuantity of substance

Solution Approach 1:

The patent segments the 64 access categories into multiple access category groups, where each group shares common access barring parameters. This segmentation reduces the number of parameter sets that need to be signaled while maintaining the ability to differentiate between various access types through group-based control.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent creates a mapping relationship between access categories and access category groups, allowing a single access category group to represent multiple access categories. This universal grouping mechanism enables one set of barring parameters to serve multiple access categories, reducing overall signaling requirements while preserving access control functionality.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If access barring parameters are defined for each access category, then service differentiation is improved, but system complexity increases

Engineering Contradiction:

Improveservice differentiationVSAvoidsystem complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

By dividing 64 access categories into smaller groups, the system maintains service differentiation capabilities within each group while reducing the overall complexity of parameter management. Each group can be independently configured and signaled.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The access category group acts as an intermediary layer between individual access categories and the access barring parameter sets. This intermediate grouping structure simplifies the mapping relationship and reduces the complexity of managing one-to-one correspondences between categories and parameters.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS11665625B2Method and apparatus for performing access barring check

Publication Date: 2023.05.30 LG ELECTRONICS INC

AI summary

Provided are a method for a user equipment (UE) to perform access barring check in a wireless communication system, and an apparatus supporting the same. The method may include: receiving a list of barring information, wherein each of the barring information includes a barring factor and a barring time; receiving information on an access category related to barring information included in the list; performing the access barring check for the access category, based on the barring information related to the access category; and performing uplink transmission, if an access attempt is allowed for the access category.