Service-Based Direct Access Connection Management Across Releases
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Solution Overview
Problem
Existing communication networks face challenges in efficiently managing direct access and connectivity between wireless devices and core networks, particularly in scenarios involving multiple technologies and releases, leading to inefficiencies and compatibility issues.
Innovation Solution
A framework for service-based architecture is introduced, enabling dynamic discovery and interaction between network functions within the core network, allowing for flexible and efficient communication protocols and resource management across various wireless devices and base stations, including support for multiple technologies and releases.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If direct access between wireless devices and core networks is enabled across multiple technologies and releases, then network versatility and device connectivity are improved, but network complexity and compatibility management deteriorate
Solution Approach 1:
The patent implements a universal service-based architecture where network functions can serve multiple technologies (5G, 4G, 3G) and releases through a common framework. The service-based interface design allows the same core network functions to handle different wireless access technologies without requiring technology-specific implementations, thus achieving multi-functionality that resolves the contradiction between versatility and complexity.
Solution Approach 2:
The patent segments the core network into independent service-based functions that can be selectively activated and managed. By dividing the core network architecture into modular service functions with standardized interfaces, the system can support multiple technologies through composition of these segments rather than monolithic technology-specific implementations, reducing overall network complexity while maintaining versatility.
2Adaptability or versatility
If service-based architecture framework is implemented for dynamic discovery and interaction, then network flexibility and resource management are improved, but system complexity and implementation difficulty deteriorate
Solution Approach 1:
The patent utilizes parameter changes in the form of service-based interface configurations and discovery mechanisms. The system dynamically adjusts service parameters and interaction protocols based on network conditions and device requirements, enabling flexibility through parameterization rather than hard-coded architecture, which simplifies implementation while maintaining adaptability.
3Productivity
If seamless communication across diverse wireless devices is facilitated, then connection efficiency and user experience are improved, but signaling overhead and processing requirements deteriorate
Solution Approach 1:
The patent introduces service-based network functions as intermediaries between wireless devices and the core network. These intermediary service functions handle signaling and communication coordination, reducing direct signaling overhead between devices and core network elements. The mediator architecture enables seamless communication by centralizing management functions, thus improving connection efficiency while controlling signaling overhead through centralized processing.
Data Source
AI summary
A wireless device receives a second non-access stratum (NAS) messages indicating an establishment of a protocol data unit (PDU) session and a rejection of a multi-access (MA)-PDU session type for the PDU session.