Flexible Network Architecture Using Universal SAE Anchor Nodes
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Solution Overview
Problem
Current wireless communication network architectures are complex due to the need for two userplane nodes in both visited and home networks, leading to overlapping functions and increased interfaces, especially in non-roaming cases, which complicates network simplification efforts.
Innovation Solution
Implementing a single user plane node for non-roaming connections and allowing two nodes to be connected in series for roaming cases, simplifying the architecture by reducing the number of interfaces and enabling selective use of two-node configurations when necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If two user plane nodes are deployed in both visited and home networks, then roaming functionality is supported, but device complexity and interface quantity increase
Solution Approach 1:
The SAE anchor is designed as a universal node that can function in both roaming and non-roaming scenarios. A single SAE anchor type replaces the need for separate user plane nodes in visited and home networks, providing multi-functional capability that reduces overall architecture complexity while maintaining roaming support
2Adaptability or versatility
If two user plane nodes are deployed in both visited and home networks, then roaming functionality is supported, but the number of interfaces increases
Solution Approach 1:
The SAE anchor serves as a universal interface point that consolidates multiple interfaces into a single standardized interface. By using one SAE anchor type for all user plane functions, the patent reduces the total number of interfaces while maintaining the ability to support roaming through selective activation of series connection mode
3Reliability
If two user plane nodes are used in non-roaming cases, then network coverage is maintained, but system efficiency decreases due to redundant processing
Solution Approach 1:
The patent implements a dynamic architecture where the number of active SAE anchors adjusts based on operational mode. In non-roaming cases, only one SAE anchor is activated to eliminate redundant processing and improve efficiency. In roaming cases, two SAE anchors are activated in series connection to maintain full functionality. This dynamic configuration allows the system to optimize performance based on actual network conditions
Data Source
AI summary
In a method and apparatus for providing a flexible network architecture, an apparatus operable in a communication system comprises one or more logical entities adapted to provide a set of functions related to a connection through the communication system, wherein said logical entities are connected in series, and a subset of said functions are provided by each occurrence of said logical entities.