Network Session Management for Service Continuity

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Current mobile communication systems lack a means for optimizing session management and ensuring continuity of mobile communication services across various terminals and network apparatuses, particularly in establishing and maintaining communication sessions effectively.

Innovation Solution

The solution involves a communication control method where the network initiates session establishment and maintains connectivity for optimized mobile communication services, allowing terminals and core networks to establish and manage communication paths efficiently, enabling seamless service continuity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the network initiates session establishment procedures, then service continuity and mobility are improved, but device complexity and control overhead increase

Engineering Contradiction:
Improveservice continuityVSAvoidcontrol overhead
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent introduces a session management function in the network that acts as an intermediary to coordinate session establishment and continuity. This function manages session contexts and coordinates between access networks, reducing the complexity burden on individual network elements while maintaining reliable service continuity through centralized session control.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If session management is optimized for various terminals, then adaptability and service quality improve, but system complexity increases

Engineering Contradiction:
Improveterminal compatibilityVSAvoidsystem complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements a universal session management framework that can handle multiple terminal types and access networks through a common interface and procedure set. The session management function is designed to be multi-functional, supporting different terminal capabilities and network configurations without requiring separate management systems, thus improving adaptability while controlling system complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Reliability

If communication paths are dynamically established and maintained, then service continuity is improved, but use of energy and network resources increases

Engineering Contradiction:
Improveconnectivity continuityVSAvoidnetwork resource consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent implements dynamic session management where communication paths are established and maintained based on actual service needs and terminal mobility states. The system dynamically adjusts session contexts and communication routes according to changing conditions, ensuring continuous connectivity while optimizing network resource usage by avoiding unnecessary path maintenance in stable conditions.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP3461104B1Apparatus and method for PDU session management
Publication Date: 2023.10.11 SHARP KK
  • EP3461104B1 patent drawingFigure 1
  • EP3461104B1 patent drawingFigure 2A~2B
  • EP3461104B1 patent drawingFigure 3A~3B

AI summary

To provide a communication control means for establishing a session between a terminal apparatus and a network in a network-initiated manner and/or a connection control means for supporting service continuity and/or a session establishment control means for supporting service continuity and/or a communication control means for service continuity, and the like. These provide a communication control method for establishing an optimal session for service continuity through which service is continued by switching between sessions for communication, an optimal communication control method for service continuity, and the like.