Roaming Data Routing via Home Network IP Allocation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current mobile communication systems face challenges in reducing latency and enhancing data service quality for roaming users, particularly in optimizing user plane routing and IP address allocation, which are not effectively controlled by home network operators.
Innovation Solution
Implementing a method and system for data routing of roaming users that involves configuring a roaming protocol between the home and roaming networks, allowing interactive negotiation for IP address allocation, and establishing a default IP bearer controlled by the home network to optimize data plane routing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the terminal performs PDP context activating process before service communication, then the terminal can acquire IP address and configuration parameters, but the time-delay for the user to turn from idle state to data communication state increases
Solution Approach 1:
The patent applies preliminary action by establishing the default IP bearer and allocating IP address during the network attaching process before the user actually needs data service. This allows the terminal to be pre-configured with IP addressing information, so when data service is required, the terminal can immediately use the pre-established bearer without waiting for additional PDP context activation, thus reducing the time-delay while maintaining proper IP address management
2Productivity
If the home network operator controls IP address allocation for roaming users, then the data routing can be optimized, but the complexity of roaming protocol configuration increases
Solution Approach 1:
The patent uses the default IP bearer as an intermediary mechanism that enables home network operator control over IP address allocation and data routing for roaming users. The bearer acts as a pre-established data path that carries user plane traffic, allowing the home network operator to influence routing decisions without requiring complex direct control protocols between networks. This intermediary approach simplifies the roaming protocol configuration while maintaining optimization capabilities
3Speed
If the roaming network allocates IP address for default IP bearer, then the data plane routing of roaming user can be optimized, but the control over IP address allocation is lost
Solution Approach 1:
The patent applies preliminary action by establishing the default IP bearer during the network attaching process, which includes pre-negotiating and allocating the IP address before actual data service begins. This preliminary IP address allocation during attachment ensures that when data service starts, the optimized data plane routing is already in place, achieving fast routing speed while maintaining home network operator control through the pre-established bearer configuration
Data Source
AI summary
A method and system for implementing data routing of a roaming user are disclosed. The method comprises: configuring a roaming protocol between the home network and the roaming network; during the registering process of the user in the roaming network, performing an interactive negotiation between the home network and the roaming network, so as to determine one of the home network and the roaming network to allocate IP address according to the roaming protocol between the home network and the roaming network; and establishing the IP access bearer based on the IP address.