FMSC QoS Policy Coordination for Consistent Service Handover

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Solution Overview

Problem

There is no existing QoS guarantee mechanism for Fixed, Mobile, and Satellite Convergence (FMSC) networks, which are essential for providing integrated communication services across terrestrial and space-based domains.

Innovation Solution

A QoS guarantee method and apparatus for FMSC networks, involving network-customized policies at various granularities, including PDU, flow, service, and user levels, with inter-network collaborative management and capability negotiation to ensure resource allocation and service quality.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If no QoS guarantee mechanism is implemented in FMSC network, then network complexity is reduced, but service quality consistency and user experience cannot be guaranteed

Engineering Contradiction:
Improveservice quality consistencyVSAvoidnetwork complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent segments QoS policies into multiple granular levels (PDU session level, QoS flow level, service level, user level) to enable differentiated service quality guarantees. This segmentation allows the complex QoS management function to be divided into manageable components that can be independently configured and enforced across the FMSC network.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent implements preliminary QoS policy generation and distribution before service activation. The network device generates QoS policies based on service requirements and distributes them to relevant network elements in advance, ensuring that QoS guarantees are already in place before traffic begins, thus avoiding reactive adjustments that would increase operational complexity.

Inventive Principle:
Principle #10Preliminary action

2Reliability

If network-customized QoS policies are generated and distributed to multiple network elements, then QoS guarantee capability is improved, but message processing complexity increases

Engineering Contradiction:
ImproveQoS guarantee capabilityVSAvoidmessage processing complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent designs a universal QoS policy framework that can be applied across multiple network elements (core network, access network, service platform) using common policy structures and protocols. This multi-functionality allows the same QoS mechanism to operate consistently across different network domains without requiring element-specific processing logic, thereby reducing overall message processing complexity.

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

Solution Approach 2:

The patent introduces QoS policy as an intermediary structure that mediates between service requirements and network resource allocation. By encapsulating QoS parameters in standardized policy messages, the system simplifies communication between diverse network elements, reducing the complexity of direct interactions and enabling more efficient policy distribution and enforcement.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Adaptability or versatility

If QoS policies are implemented at multiple granular levels, then service differentiation is improved, but policy management complexity increases

Engineering Contradiction:
Improveservice differentiationVSAvoidpolicy management complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent segments QoS policies into multiple granular levels (PDU session level, QoS flow level, service level, user level) to enable differentiated service quality guarantees. This segmentation allows the complex QoS management function to be divided into manageable components that can be independently configured and enforced across the FMSC network.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent implements dynamic QoS policy adjustment mechanisms that allow policies to be automatically modified based on real-time network conditions and service requirements. This dynamic capability enables the system to adapt to changing conditions without requiring manual reconfiguration of all policies, thereby managing complexity through automation while maintaining service differentiation.

Inventive Principle:
Principle #15Dynamics

4Reliability

If inter-network collaborative management is implemented, then handover service quality is improved, but coordination complexity increases

Engineering Contradiction:
Improvehandover service qualityVSAvoidcoordination complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent implements feedback mechanisms in inter-network collaborative management that enable continuous monitoring of handover performance and QoS parameters. By collecting real-time feedback from network elements during handover processes, the system can automatically adjust coordination parameters and policies to maintain service quality, reducing the need for complex manual coordination protocols.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent implements preliminary QoS policy generation and distribution before service activation. The network device generates QoS policies based on service requirements and distributes them to relevant network elements in advance, ensuring that QoS guarantees are already in place before traffic begins, thus avoiding reactive adjustments that would increase operational complexity.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP4701257A1QOS guarantee method for fixed, mobile and satellite convergence network, and apparatus
Publication Date: 2026.02.25 CHINA MOBILE COMM GRP CO LTD
  • EP4701257A1 patent drawingFigure 1~3
  • EP4701257A1 patent drawingFigure 4
  • EP4701257A1 patent drawingFigure 5

AI summary

A method and apparatus for Quality of Service (QoS) guarantee of a Fixed, Mobile and Satellite Convergence (FMSC) network are provided. The method includes: generating a network-customized QoS policy; sending the network-customized QoS policy, wherein a recipient of the network-customized QoS policy includes one or more of: a space-based core network, a terrestrial core network, a fixed access network, a mobile access network, a satellite access network, a multi-connectivity terminal, a terrestrial service platform, and a space-based service platform.