Wireless Device PDU Session Setup for TSN Access Management

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Solution Overview

Problem

Existing 5G systems face challenges in efficiently managing network slices and access management for wireless devices, particularly in handling diverse access types and ensuring seamless connectivity and QoS across various network environments.

Innovation Solution

The implementation of enhanced network functions and protocols in 5G systems, including AMF, SMF, UPF, and PCF, to manage network slices and access management, enabling unified policy frameworks, edge computing, and support for multiple access types, with features like QoS flow-based frameworks and traffic steering.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If existing 5G systems manage network slices and access management, then connectivity is provided, but network efficiency and seamless access management across diverse access networks is not achieved

Engineering Contradiction:

Improvenetwork efficiencyVSAvoidaccess management across diverse access networks

Core Design Contradiction:

ProductivityVSAdaptability or versatility

Solution Approach 1:

The patent segments access management by introducing separate access management functions (AMF) for different access types (3GPP and non-3GPP). Each AMF instance handles specific access types independently, allowing optimized management for each access network while maintaining overall system efficiency. This segmentation enables parallel processing of access management tasks without interference between different access types.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent introduces an access and mobility management function (AMF) as an intermediary between the wireless device and the core network. This intermediary handles access management, mobility management, and session management tasks, enabling seamless connectivity across diverse access networks while improving overall network efficiency by centralizing control functions.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Ease of operation

If unified policy frameworks and edge computing are implemented, then access management is enhanced, but device complexity increases

Engineering Contradiction:

Improveaccess managementVSAvoidnetwork function implementation

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The patent implements a unified policy framework where the access and mobility management function (AMF) performs multiple functions including access management, mobility management, and session management. This multi-functional approach simplifies access management across diverse networks while the complexity is managed through standardized protocols and procedures rather than increasing device complexity.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

By introducing the AMF as an intermediary layer, the patent simplifies access management operations for wireless devices while the complexity of implementing unified policies and edge computing is absorbed by the network infrastructure rather than the devices. The intermediary handles complex policy enforcement and coordination transparently.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS12408213B2Wireless device related to time sensitive network for protocol data unit session establishment with access management function

Publication Date: 2025.09.02 TOYOTA JIDOSHA KK

AI summary

A wireless device may be configured to perform a method including receiving, from a time sensitive network (TSN) translator device, a TSN parameter. The wireless device may also send, to an access and mobility management function (AMF), a non-access stratum (NAS) message indicating a request to establish a protocol data unit (PDU) session comprising the one or more TSN parameters. The wireless device may receive, from the AMF, a message indicating acceptance of the PDU session.