Dynamic IP Address Allocation for Mobility Management
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current IP-based communication networks face inefficiencies in managing mobility due to triangular routing, which increases latency, power consumption, and costs, and deteriorates network reliability, especially when maintaining static IP addresses for mobile stations.
Innovation Solution
A method and device for managing mobility in IP-based networks by dynamically allocating and managing IP addresses based on application requests, using an enhanced API that selects and configures different types of IP addresses (permanent, stable, or local) depending on the application's needs, allowing for efficient anchoring and reducing reliance on static nodes like HA/PGW.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If static IP addresses are allocated to mobile stations using permanent anchoring through HA/PGW, then IP session continuity and reachability are maintained, but triangular routing increases latency, power consumption, and network costs
Solution Approach 1:
The patent applies dynamics by transitioning from permanent static anchoring to dynamic anchoring, where the anchor point changes based on mobile station location. The system determines whether to use permanent anchoring (through HA/PGW) or tentative anchoring (through local access router) based on real-time conditions, optimizing the routing path dynamically to reduce latency while maintaining IP session continuity
Solution Approach 2:
The patent segments the anchoring function into two types: permanent anchoring for core network mobility and tentative anchoring for access network mobility. This segmentation allows the system to use the most appropriate anchoring method for each mobility scenario, avoiding unnecessary triangular routing for local movements while maintaining reliability for broader mobility changes
2Reliability
If permanent anchoring through HA/PGW is used to maintain static IP addresses, then IP reachability is ensured, but power consumption and operational costs increase
Solution Approach 1:
The system dynamically selects between permanent and tentative anchoring based on mobility requirements. For local access network movements, tentative anchoring is used which reduces power consumption by avoiding constant communication with distant HA/PGW nodes. For broader mobility changes, permanent anchoring ensures IP reachability is maintained. This dynamic selection optimizes power usage while maintaining reliability
3Ease of operation
If static IP addresses are allocated to all applications, then mobility management is simplified, but network efficiency decreases due to unnecessary anchoring overhead
Solution Approach 1:
The patent applies local quality by providing different IP address types to different applications based on their specific requirements. Applications requiring high mobility support receive permanent IP addresses with HA/PGW anchoring, while applications with lower mobility requirements receive temporary IP addresses with local anchoring or no anchoring. This differentiated approach optimizes network efficiency by avoiding unnecessary anchoring overhead for applications that don't require it, while maintaining ease of operation for mobility-sensitive applications
Data Source
AI summary
A method and a device for managing mobility of a mobile station in an Internet Protocol (IP) based network are provided. The method includes receiving a request for allocation of an IP address from an application, determining a type of IP address to be allocated to the application based on the request for the allocation of the IP address, and allocating the determined type of IP address to the application.