Dynamic Home Agent Assignment for Mobile Node Local Access
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Solution Overview
Problem
Current Mobile Internet Protocol (MIPv6) systems assign home agent and home address statically, leading to inefficient and unreliable packet transmissions for mobile nodes when they are away from their home network, as packets often need to be routed through the home network, causing remote access issues and inefficiencies.
Innovation Solution
Implementing a dynamic assignment of home agent and home address based on the mobile node's current point of attachment, allowing the mobile node to receive local access service by registering with a visitor home agent on the visited network, which reduces reliance on the home network for packet routing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If static home agent and home address assignment is used, then network security and simplified management are improved, but packet transmission efficiency and reliability deteriorate when mobile nodes are away from home network
Solution Approach 1:
The patent applies dynamics by transitioning from static to dynamic assignment of home agents and home addresses. Mobile nodes can now be assigned different home agents and home addresses depending on their current network location, allowing the system to adapt to changing conditions and improve packet transmission reliability while managing complexity through automated procedures.
Solution Approach 2:
The patent changes key parameters including home agent address, home address, and care-of address based on the mobile node's current network attachment point. This dynamic parameter adjustment enables efficient local access services while maintaining network security through controlled assignment procedures managed by authentication servers.
2Productivity
If dynamic assignment of home agent and home address is implemented, then packet transmission efficiency is improved, but network configuration complexity increases
Solution Approach 1:
The patent implements self-service by enabling mobile nodes to automatically obtain appropriate home agents and home addresses through authentication procedures with the network. The mobile node initiates the process by sending a mobility message containing its current care-of address, and the system automatically assigns appropriate parameters without requiring manual configuration, thereby improving efficiency while managing complexity.
Solution Approach 2:
The patent uses an authentication server as an intermediary to manage the complexity of dynamic assignment. The authentication server receives mobility messages from mobile nodes, determines appropriate home agents and home addresses based on current network conditions, and assigns these parameters automatically. This intermediary approach simplifies the overall system by centralizing the complex assignment logic.
3Speed
If routing through home network is required, then network security is maintained, but transmission speed and reliability deteriorate
Solution Approach 1:
The patent applies local quality by enabling mobile nodes to receive local access services from visited networks when away from home. Instead of all packets being routed through the home network, packets can be locally routed through the current network attachment point, improving both speed and reliability for local communications while maintaining security through controlled home address assignment.
Data Source
AI summary
Embodiments disclosed herein relate to providing dynamic assignment of home agent and home address in wireless communications, such that a mobile node away from home may receive local access services from a visited network. In an embodiment, a mobile node accesses a visited network. The visited network authenticates the mobile node with its home network. The visited network then assigns a visited home agent and a home address for the mobile node. The mobile node subsequently performs secure binding with the visitor home agent. The mobile node proceeds with communications using the visitor home agent and home address.