Static IP Assignment for Dual-Mode Wireless Devices
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Solution Overview
Problem
Dual-mode wireless communication devices face challenges in maintaining a static IP address across different wireless access networks, such as 3G and 4G networks, which are built on different access technologies, leading to disruptions in service when switching between networks.
Innovation Solution
An authorization system in the home wireless network that transfers a network service request to acquire a static packet address, involving a communication interface and processing system to receive and process authorization requests, queries the user profile system for the static packet address, and responds with the necessary authentication to ensure the device maintains the same packet address across networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If dynamic IP address assignment is used in visited wireless networks, then network flexibility and ease of operation are improved, but service continuity and reliability deteriorate when devices roam between networks
Solution Approach 1:
The system performs preliminary action by assigning a static IP address to the wireless communication device before it roams to visited networks. The authorization system stores the device's permanent IP address in the user profile system, and this pre-assigned address is retrieved and applied whenever the device connects to any network, ensuring service continuity without requiring reassignment during roaming.
Solution Approach 2:
The invention introduces an intermediary mechanism - the authorization system with user profile system - that acts as a mediator between the wireless device and visited networks. This intermediary stores and manages the static IP address assignment, translating between different network access technologies (3G, 4G) and ensuring consistent IP address delivery to the device regardless of which network it connects to.
2Adaptability or versatility
If different IP address assignment techniques are used for 3G and 4G networks, then adaptability to different access technologies is improved, but device complexity and difficulty of operation increase for dual-mode devices
Solution Approach 1:
The authorization system implements universality by providing a single, unified static IP address assignment mechanism that works across both 3G and 4G networks. Instead of requiring separate IP address management for each network type, the system uses one universal approach: the device requests a static IP through the authorization system, which retrieves it from the user profile system and applies it consistently regardless of whether the device is accessing via 3G or 4G network.
Solution Approach 2:
The authorization system serves as an intermediary that abstracts away the differences between 3G and 4G IP address assignment mechanisms. It receives access requests from either network type, uniformly queries the user profile system for the stored static IP address, and returns the appropriate addressing information to both network types, thereby simplifying device operation while maintaining adaptability.
3Reliability
If static IP address is maintained across network switches, then service reliability and communication stability are improved, but network configuration complexity and processing requirements increase
Solution Approach 1:
The invention extracts the static IP address management function from the visited networks and concentrates it in the authorization system and user profile system. Instead of each visited network attempting to maintain and manage static IP assignments, the system extracts this responsibility to a centralized authorization mechanism that handles all static IP assignments uniformly, reducing configuration complexity in individual networks while maintaining communication stability.
Solution Approach 2:
The system implements self-service by having the authorization system automatically retrieve the static IP address from the user profile system and apply it without requiring manual configuration. When a device connects to a visited network, the authorization system autonomously queries the user profile system for the pre-stored static IP address and configures it, eliminating the need for complex manual intervention while ensuring reliable IP address consistency.
Data Source
AI summary
An authorization system in a home wireless network comprises a communication interface and a processing system, wherein a wireless communication device associated with the home wireless network transfers a network service request to a service node to acquire a static packet address for the wireless communication device. The communication interface is configured to receive an authorization request for the wireless communication device, transfer a query for delivery to a user profile system, receive a packet address of a home agent associated with the wireless communication device, transfer an authorization response, and receive an authentication request transferred from the home agent. The processing system is configured to process the authentication request to determine the static packet address for the wireless communication device. The communication interface is configured to transfer an authentication response for delivery to the home agent, wherein the authentication response includes the static packet address for the wireless communication device.