AAA Server IP Mobility Protocol Selection
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Solution Overview
Problem
Current network mobility management solutions lack an efficient mechanism for selecting the appropriate IP mobility management protocol between mobile nodes and network entities, leading to suboptimal IP mobility management in diverse networking environments.
Innovation Solution
A communication network system that utilizes an Authentication, Authorization, and Accounting (AAA) server to select the appropriate IP mobility management mechanism based on information provided by both mobile nodes and network entities, supporting protocols like mobile IPv4, mobile IPv6, dual stack mobile IP, and proxy mobile IP, using Extensible Authentication Protocol (EAP) for negotiation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple IP mobility management protocols are supported in the network, then the adaptability and versatility of the network is improved, but the device complexity and difficulty of protocol selection increase
Solution Approach 1:
The patent introduces an AAA server as an intermediary that centralizes the IP mobility management protocol selection process. The AAA server receives capability information from both the network entity and mobile node, performs the selection based on predefined criteria, and returns the selected protocol to the network entity. This mediator approach resolves the contradiction by handling the complexity of multi-protocol support and selection logic in a centralized location, thereby maintaining high adaptability while reducing selection complexity at the network entity level.
2Measurement precision
If the mobile node actively participates in mobility management signaling, then the measurement precision and control over mobility is improved, but the use of energy and processing resources increase
Solution Approach 1:
The patent implements a dynamic mobility management approach where the mobile node's participation level is adjusted based on the selected protocol type. When host-based mobility management is chosen, the mobile node actively participates in signaling exchanges with the AAA server, providing precise mobility control. When network-based mobility management is selected, the mobile node's participation is minimized, reducing energy consumption while maintaining adequate control through network-side management. This dynamic adjustment resolves the contradiction by adapting the mobile node's involvement to the specific mobility management scenario.
Data Source
AI summary
A communication network system having capability for IP mobility management selection. The communication system includes a server, a network entity, and at least one mobile node. The network entity is configured to provide its IP mobility management information to the server, whereas the mobile node is configured to provide its IP mobility management information to the server. In the communication system, the server is configured to make a selection of IP mobility management mechanism based on the information provided by the network entity and the mobile node. The server then sends the selection to the network entity. In a specific embodiment, the server can be an Authentication, Authorization and Accounting (AAA) server. Here, the IP mobility management information includes one or more supported IP mobility management protocols. For example, the supported IP mobility management protocols can include mobile IPv4, mobile IPv6, dual stack mobile IP, and proxy mobile IP, etc.