Wireline Access Gateway Function Control and User Plane Separation

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Solution Overview

Problem

The existing wireless network architectures, such as those in 4G and 5G core networks, lack control and user plane separation (CUPS) in Trusted Non-3GPP Gateway Function (TNGF) and Wireline Access Gateway Function (W-AGF), leading to constrained interface needs and operational inefficiencies.

Innovation Solution

Implementing control and user plane separation (CUPS) by splitting TNGF and W-AGF into TNGF-C and TNGF-U entities, and W-AGF-C and W-AGF-U entities, respectively, with new interfaces (E11 and E12) to manage performance and signaling between these entities.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If monolithic gateway function architecture is used in TNGF and W-AGF, then implementation simplicity is maintained, but operational flexibility and performance management capability are limited

Engineering Contradiction:

Improveoperational flexibilityVSAvoidgateway function structure

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The gateway function is divided into separate control plane entity (gateway function control plane entity) and user plane entity (gateway function user plane entity), allowing independent management and operation of control and user plane functions, thereby improving operational flexibility while maintaining manageable complexity through modular architecture

Inventive Principle:

Principle #1Segmentation

2Productivity

If control and user plane separation is implemented, then operational efficiency and flexibility are improved, but interface complexity increases

Engineering Contradiction:

Improveoperational efficiencyVSAvoidinterface structure

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

Separation of control and user plane functions enables independent optimization and management of each plane, improving operational efficiency through specialized processing while the standardized interface protocol manages the complexity of inter-entity communication

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The control plane entity receives performance statistics from the user plane entity through defined interfaces, enabling feedback-based optimization and management while maintaining structured communication protocols that control interface complexity

Inventive Principle:

Principle #23Feedback

3Measurement precision

If monolithic gateway function is used, then interface requirements are constrained, but performance monitoring and management capability are reduced

Engineering Contradiction:

Improveperformance statisticsVSAvoidgateway function architecture

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The gateway function is segmented into control and user plane entities, allowing the control plane to receive and process performance statistics from the user plane through standardized interfaces, thereby improving measurement precision while managing architectural complexity through functional separation

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS20250113227A1Managing gateway function operation in wireless network

Publication Date: 2025.04.03 SAMSUNG ELECTRONICS CO LTD

AI summary

A method for managing an operation of a wireline access gateway function (W-AGF) in a wireless network is disclosed. The method comprises transmitting, by a W-AGF control plane (W-AGF-C) entity of the W-AGF to a W-AGF user plane (W-AGF-U) entity of the W-AGF, a performance statistics request message for at least one object; and receiving, by the W-AGF-C entity from the W-AGF-U entity, a performance statics response message in response to the performance statistics request message.