FWA Network Slice Switching for Consistent Multi-Service QoS

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Solution Overview

Problem

Current 3GPP standards lack guidelines for network slicing management in fixed wireless access (FWA) systems, leading to inconsistent user experiences and inefficient resource utilization due to the lack of optimized network slices for different services.

Innovation Solution

Implement a device in the FWA system that receives QoS category requests, determines appropriate network slices, and facilitates data packet transmission using machine learning models or predefined mapping tables to dynamically allocate network resources based on QoS requirements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If virtual network slicing is implemented to separate 5G use cases, then user experience consistency is improved, but device complexity increases due to lack of management guidelines in home routers

Engineering Contradiction:
Improveuser experience consistencyVSAvoidnetwork slicing management complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent introduces a network slice selector as an intermediary component in the home router that mediates between client devices and the network infrastructure. This selector receives service requests, determines appropriate network slices based on QoS requirements, and routes traffic accordingly, thereby managing network slicing complexity centrally rather than distributing it across multiple components

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system implements feedback mechanisms where the network slice selector continuously monitors network conditions, service performance, and QoS metrics. Based on this feedback, it dynamically adjusts network slice selection and can trigger re-slicing operations to maintain optimal user experience consistency across different services

Inventive Principle:
Principle #23Feedback

2Productivity

If network slicing is managed without standardized guidelines, then service optimization is improved, but service level consistency deteriorates across different services

Engineering Contradiction:
Improveservice optimizationVSAvoidservice level consistency
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent employs parameter changes by dynamically adjusting QoS parameters, network slice selection, and resource allocation based on service requirements. The system modifies these parameters in real-time to optimize each service while maintaining consistent service levels through standardized management procedures

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The network slicing functionality is segmented into distinct modular components including a network slice selector, QoS parameter manager, and service optimization engine. This segmentation allows each component to handle specific aspects of service management independently while working together to maintain overall service level consistency

Inventive Principle:
Principle #1Segmentation

3Reliability

If QoS management is implemented in FWA systems, then service quality is improved, but device complexity increases due to additional management functions

Engineering Contradiction:
Improveservice qualityVSAvoidmanagement function complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The network slice selector is designed as a universal component that handles multiple QoS management functions including service request evaluation, network slice determination, traffic routing, and performance monitoring. This multi-functionality reduces the need for separate dedicated components for each QoS function, thereby managing device complexity while improving service quality

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

Data Source

PatentUS20250220548A1Network slice switching for fixed wireless access systems
Publication Date: 2025.07.03 T MOBILE US INC
  • US20250220548A1 patent drawing
  • US20250220548A1 patent drawing
  • US20250220548A1 patent drawing

AI summary

Methods and systems for network slice switching in a fixed wireless access (FWA) system are described herein. In one implementation, a device configured to route outgoing data traffic generated in the FWA system may receive from a first client device on the FWA system, a request to transmit data packets associated with a service to a service provider located external of the FWA system. The device may obtain, from the request, a first tag being indicative of a first quality of service (QOS) category requested by the service. The device may further determine, based on the first tag, a network slice to be assigned for the service, establish, via a wireless network, a session corresponding to the network slice between the first client device and the service provider, and facilitate transmission of the data packets associated with the service on the session.