Access Router Packet Data Network Availability Verification
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current internet protocol mobility frameworks face challenges in verifying packet data network support, particularly in scenarios where wireless terminals need to seamlessly connect to multiple packet data networks while maintaining transparent mobility and efficient address management.
Innovation Solution
The implementation of a system that includes an access router with a wireless network interface, an address assignment module, and an availability module, which determines mobile IP availability for each packet data network and generates an availability signal to the wireless terminal, allowing it to disconnect from non-routable networks and allocate a care-of address for communication with available networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the wireless terminal maintains connections to multiple packet data networks simultaneously, then network coverage and service availability are improved, but resource wastage increases due to maintaining connections to non-routable networks
Solution Approach 1:
The access router implements a feedback mechanism by sending availability signals to wireless terminals indicating whether packet data networks are routable. The router determines routability status and communicates this information back to terminals, enabling them to adjust their connections accordingly. This feedback loop allows terminals to maintain connections only to available networks, improving resource efficiency while preserving service availability.
Solution Approach 2:
The system performs preliminary determination of network routability before the wireless terminal fully establishes connections. The access router assesses which packet data networks are routable in advance and communicates this information to terminals prior to connection establishment. This preliminary action prevents terminals from wasting resources establishing connections to non-routable networks.
2Adaptability or versatility
If the access router provides transparent mobility support, then wireless terminal mobility is improved, but the complexity of verifying packet data network support increases
Solution Approach 1:
The access router serves as an intermediary that simplifies the complexity of verifying packet data network support. Instead of requiring wireless terminals to directly verify network routability (which would increase terminal complexity), the router performs the verification and communicates results to terminals. This intermediary approach maintains transparent mobility support while centralizing the verification complexity in the network infrastructure.
3Loss of energy
If the wireless terminal disconnects from non-routable networks, then resource efficiency is improved, but the time to establish reliable connectivity increases
Solution Approach 1:
The system performs preliminary determination of network routability through availability signals sent from the access router to wireless terminals before connection establishment. This preliminary action provides terminals with advance knowledge of which networks are routable, enabling them to establish connections only to available networks. This approach improves resource efficiency by preventing connections to non-routable networks while minimizing connection establishment time through proactive information provision.
Data Source
AI summary
An access router includes a wireless network interface, an address assignment module, and an availability module. The wireless network interface establishes a wireless link with a wireless terminal. The address assignment module determines a list of packet data networks for use by the wireless terminal. The availability module determines a mobile internet protocol availability for each packet data network in the list of packet data networks and generates an availability signal based on each mobile internet protocol availability. The address assignment module transmits an address assignment message that includes the availability signal to the wireless terminal.