Gateway Node Extension for Mobile IP Address Assignment
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Solution Overview
Problem
Assigning a mobile internet protocol address to a mobile station in wireless communication networks becomes problematic when multiple network elements are involved in authentication, requiring effective recognition to ensure proper data transfer.
Innovation Solution
A method and system where a gateway node generates an extension with an authentication node identifier associated with a user identifier, sending a mobile internet protocol request message to a mobile network internet node, which then assigns the address after authentication, ensuring seamless connectivity across different network elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple network elements are involved in authentication, then authentication capability is improved, but device complexity increases
Solution Approach 1:
The authentication process is segmented into distinct phases: gateway node generates extension with authentication node identifier, mobile network internet node sends access request to authentication node, authentication node validates credentials, and finally mobile network internet node assigns IP address. This segmentation distributes authentication functionality across multiple specialized network elements, improving reliability while managing complexity through functional decomposition.
Solution Approach 2:
The gateway node acts as an intermediary that generates an extension containing the authentication node identifier, which is then included in the mobile internet protocol request message. This intermediary mechanism facilitates communication between the mobile station and authentication node without requiring direct complex interactions, thereby improving authentication capability while managing network element complexity.
2Adaptability or versatility
If mobile station moves across different locations, then mobility is improved, but maintaining connectivity becomes more difficult
Solution Approach 1:
The gateway node performs preliminary actions by generating an extension with the authentication node identifier before the mobile station moves. This pre-established authentication context allows the mobile network internet node to quickly re-authenticate and reassign IP addresses as the mobile station moves to different locations, maintaining connectivity without requiring complex real-time negotiation protocols.
Data Source
AI summary
In various embodiments, methods and systems are provided for acquiring a mobile internet protocol address in a communication network. In an embodiment, a gateway node generates an extension where the extension comprises an authentication node identifier associated with a user identifier. The gateway node then sends a mobile internet protocol request message to a mobile network internet node where the mobile internet protocol request message comprises the extension. The mobile network internet node can then send a mobile internet protocol access request message to an authentication node utilizing the authentication node identifier obtained from the extension. In response to receiving a mobile internet protocol access accept message at the mobile network internet node transferred from the authentication node where the mobile internet protocol access accept message comprises the mobile network internet node key, the mobile network internet node assigns the mobile internet protocol address to the mobile station associated with the user identifier. A mobile internet protocol session accept message is sent to a mobile station wherein the mobile internet protocol session accept message comprises the mobile internet protocol address.