Wireless UE Control Over Network Slices via AMF Selection

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Solution Overview

Problem

Wireless user devices do not effectively control their wireless network slices, and they do not efficiently optimize the Access and Mobility Management Functions (AMFs) that control these slices.

Innovation Solution

A wireless communication system where a wireless communication device selects and controls a wireless network slice by transferring network function characteristics from target network functions, allowing the device to optimize the AMFs based on slice requirements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the source network function controls the wireless network slice, then the network slice can be managed centrally, but the wireless user device cannot effectively control or optimize its own network slice

Engineering Contradiction:

Improvedevice control over network sliceVSAvoidcontrol mechanism complexity

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The wireless communication device is empowered to autonomously select and control target network functions based on slice requirements. The device receives network function characteristics from multiple target network functions, evaluates them against its own slice requirements, and independently selects the optimal target network function to control its network slice, enabling self-service control without requiring complex centralized coordination

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

Instead of the network function selecting and controlling the device (traditional approach), the invention inverts the control relationship by enabling the device to select and control the network function. This inversion allows the device to actively optimize its network slice control based on its specific requirements rather than passively receiving centralized assignments

Inventive Principle:

Principle #13The other way round (Inversion)

2Adaptability or versatility

If multiple target network functions are available, then the device can optimize selection based on slice requirements, but the device lacks information about network function characteristics to make informed decisions

Engineering Contradiction:

Improveoptimization capabilityVSAvoidnetwork function characteristics information

Core Design Contradiction:

Adaptability or versatilityVSLoss of information

Solution Approach 1:

The source network function performs preliminary action by collecting network function characteristics from multiple target network functions and transferring this information to the wireless communication device before the device needs to make its selection. This advance provision of information enables the device to make informed optimization decisions without experiencing information loss

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system implements feedback by having the source network function gather characteristics from target network functions and provide this feedback information to the wireless communication device. The device then uses this feedback to evaluate and select the optimal target network function based on its slice requirements, creating a closed-loop information flow that enables informed decision-making

Inventive Principle:

Principle #23Feedback

3Reliability

If the source network function transfers authentication tokens to the device, then the device can access target network functions, but the device cannot verify or compare network function characteristics

Engineering Contradiction:

Improveauthentication capabilityVSAvoidcharacteristics verification accuracy

Core Design Contradiction:

ReliabilityVSMeasurement precision

Solution Approach 1:

The source network function performs preliminary authentication by transferring authentication tokens to the wireless communication device before the device interacts with target network functions. This advance authentication enables the device to reliably access target network functions while maintaining security, and the authentication process is complemented by separate characteristic transfer that enables verification and comparison capabilities

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS20250071853A1Wireless user equipment (UE) control over wireless network slices based on slice requirements

Publication Date: 2025.02.27 T MOBILE INNOVATIONS LLC

AI summary

A wireless communication system comprises a wireless network slice, a source network function, and target network functions. The wireless network slice serves a wireless communication device. The wireless network slice has a slice requirement. The source network function controls the wireless network slice. The target network functions transfer their network function characteristics to the wireless communication device. The wireless communication device selects one of the target network functions based on the slice requirement and the network function characteristics. The selected one of the target network functions controls the wireless network slice in response to the selection by the wireless communication device.