MA-PDU Session Performance Measurement via Access-Specific Echo
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Solution Overview
Problem
Current communication networks face challenges in efficiently managing multiple technologies and releases, particularly in supporting a mix of wireless devices with varying capabilities, and in providing flexible and configurable architectures for service-based communication scenarios.
Innovation Solution
The proposed solution involves a service-based architecture within a core network that includes multiple user plane functions and untrusted access, enabling flexible configuration and support for various wireless devices and technologies by utilizing a framework that allows for selective implementation of protocols based on criteria such as traffic load and device capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a core network supports multiple access technologies and releases simultaneously, then device compatibility and network coverage are improved, but network complexity and management difficulty increase
Solution Approach 1:
The network is segmented into separate access types (3GPP and non-3GPP) with distinct PDU session establishment procedures. Each access type has its own specific handling mechanism, allowing the network to manage multiple technologies independently while maintaining overall system organization and reducing complexity through structured separation.
Solution Approach 2:
The core network is designed with universal PDU session management capabilities that can handle multiple access technologies through a unified framework. The network function can serve both 3GPP and non-3GPP access types using common architectural elements, reducing overall complexity while maintaining versatility.
2Productivity
If the network implements flexible protocol selection based on traffic load and device capabilities, then network efficiency and resource optimization are improved, but control complexity and decision-making overhead increase
Solution Approach 1:
The network implements dynamic protocol selection where the appropriate PDU session establishment procedure is chosen based on real-time conditions such as traffic load and device capabilities. This dynamic adaptation allows the network to optimize efficiency by selecting the most suitable access type for each scenario while managing complexity through condition-based decision logic.
Solution Approach 2:
The network changes operational parameters (protocol selection, access type) based on varying conditions including traffic load and device capabilities. By adjusting these parameters dynamically, the network optimizes resource utilization and efficiency while containing control complexity within manageable decision frameworks.
3Adaptability or versatility
If the network supports both 3GPP and non-3GPP access types with separate PDU session procedures, then access flexibility and device support are improved, but procedure complexity and signaling overhead increase
Solution Approach 1:
The PDU session establishment is segmented into separate procedures for 3GPP and non-3GPP access types, with distinct handling for each access method. This segmentation enables flexible support for multiple access technologies while organizing complexity into structured, manageable procedures that can be implemented systematically.
Data Source
AI summary
A wireless device receives, from a network element, a measurement assistance information for a performance measurement function of a multi-access packet data unit (MA-PDU) session. The measurement assistance information comprises a first field indicating that a first address, associated with a first access of the MA-PDU session, is for a first radio access technology; and a second field indicating that a second address, associated with a second access of the MA-PDU session, is for a second radio access technology. The wireless device sends, to a user plane function, at least one echo request to measure performance of at least one of the first access and the second access of the MA-PDU session. The wireless device receives at least one echo response from the user plane function.