Mobile Device Dual IP Address Route Optimization
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Solution Overview
Problem
Current wireless communication networks face challenges in optimizing traffic routing when a mobile device roams outside its home network, leading to increased latency and suboptimal traffic quality due to the need to send traffic back to the home network.
Innovation Solution
Assigning a mobile device two IP addresses, a home IP address for services requiring the home network and a roaming IP address for route optimization when outside the home network, allowing direct communication through the visited network without relying on the home network, and using rules to determine which IP address to use based on communication session parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traffic is routed through the home network when roaming, then network control and authentication are maintained, but latency increases and traffic quality deteriorates
Solution Approach 1:
The patent segments traffic into two types: home network traffic (requiring authentication and control) and local traffic (requiring direct routing). By segmenting traffic based on destination network, the system can optimize each type differently - maintaining reliable control for home traffic while reducing latency for local traffic through direct routing via the visited network.
Solution Approach 2:
The patent applies local quality by treating different traffic types differently based on their specific requirements. Local traffic destined for the visited network receives optimized direct routing with lower latency, while home network traffic maintains traditional routing for reliable control. This differentiated treatment resolves the contradiction by allowing each traffic type to have its optimal path.
2Reliability
If traffic is routed through the home network when roaming, then authentication and control are maintained, but traffic quality and communication path optimization are compromised
Solution Approach 1:
The patent segments traffic into home network traffic and local traffic, allowing each segment to be handled according to its specific requirements. Authentication and control are maintained for home traffic segments, while traffic quality is optimized for local traffic segments through direct routing, thereby resolving the contradiction between authentication reliability and traffic quality.
Solution Approach 2:
The patent implements local quality by applying different routing treatments to different traffic segments. Local traffic benefits from optimized direct routing that improves traffic quality and communication path efficiency, while home traffic maintains traditional authentication and control mechanisms, thus satisfying both requirements simultaneously.
3Device complexity
If a single IP address is used for the mobile device, then device simplicity is maintained, but route optimization capability is limited
Solution Approach 1:
The patent assigns two IP addresses to the mobile device: a home IP address for communicating with the home network and a roaming IP address for communicating with the visited network. This segmentation of IP addresses enables the device to optimize routes for different networks independently, improving route optimization capability while maintaining manageable complexity through standardized dual-IP configuration.
Solution Approach 2:
The patent makes the mobile device multi-functional by enabling it to use different IP addresses for different communication scenarios. The device can switch between home and roaming IP addresses depending on the destination network, providing universal routing optimization capability across multiple network types without requiring complex device modifications.
Data Source
AI summary
Route optimization is based on a network enforced, and mobile implemented, policy. A communication session between a mobile device and an access router is established. First and second IP addresses to be assigned to the mobile device are received by the mobile device via the established communication session, as is a set of rules. The mobile device evaluates at least one parameter of the communication session against the set of rules to determine which of the IP addresses to use to communicate with an external device, and proceeds to communicate with the external device using the selected IP address based upon the evaluation result.