Mobile IPv4 Registration Protocol Optimizing Message Sequences
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Solution Overview
Problem
Current registration and authentication protocols in IP-based mobile communication systems are inefficient due to unnecessary re-transmission of registration and authentication request messages, leading to network congestion and potential delays.
Innovation Solution
A new registration and authentication protocol that optimizes the messaging sequence between the Mobile Node, Foreign Agent, foreign AAA server, and home network AAA server, eliminating unnecessary message re-transmissions by confirming authentication and authorization before sending the registration request to the Home Agent.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the current registration and authentication protocol is used, then the Mobile Node can register with the Home Agent, but unnecessary re-transmission of registration and authentication request messages occurs causing network congestion and delays
Solution Approach 1:
The patent applies preliminary action by performing authentication and authorization checks before the Mobile Node sends the registration request to the Home Agent. The Foreign Agent first authenticates the Mobile Node and obtains authorization from the foreign AAA server, then includes this authorization information in the registration request. This preliminary authentication prevents unnecessary re-transmissions because the Home Agent can verify the Mobile Node's credentials upfront, eliminating the need for subsequent authentication message exchanges and reducing network congestion.
2Productivity
If the current registration and authentication protocol is used, then the Mobile Node can register with the Home Agent, but the number of message formats and potential delays increases
Solution Approach 1:
The patent merges multiple message functions into a single optimized message flow. Instead of separate authentication, authorization, and registration messages, the Foreign Agent combines authentication results and authorization information into the registration request message sent to the Home Agent. The Home Agent then processes both authentication verification and registration in a single message exchange, reducing the total number of message formats and simplifying the protocol while maintaining security.
3Speed
If the Mobile Node sends registration request without prior authentication confirmation, then the registration process can start, but network congestion and unnecessary re-transmissions occur
Solution Approach 1:
The patent implements feedback by having the Foreign Agent first authenticate the Mobile Node and receive authorization confirmation from the foreign AAA server before proceeding with the registration request to the Home Agent. This feedback loop ensures that only authenticated and authorized Mobile Nodes initiate registration, preventing unnecessary re-transmissions and improving message transmission reliability. The Home Agent receives pre-validated registration requests, reducing network congestion and improving overall process speed.
Data Source
AI summary
The invention consists of a new registration and authentication protocol for between a Mobile Node and a Home Agent. The new protocol uses a novel messaging sequence to request registration, authentication and authorization of the Mobile Node when it is located on a foreign network, and the novel protocol will avoid some of the standard registration and authentication protocol messages in order to eliminate the problems associated with re-transmission errors.