Proxy Mobile IP Client Reduces RF Bandwidth
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Solution Overview
Problem
Mobile IP systems, as defined in RFC 3344, require significant RF bandwidth for registration processes, which is inefficient and undesirable.
Innovation Solution
A proxy, known as the Miniature Mobility Exchange (Mini-ME), is used to initiate and complete foreign IP registration procedures locally, reducing the need for RF bandwidth by acting as a direct Ethernet-connected device and minimizing the RF registration process between the mobile node and the foreign agent.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the mobile node performs foreign IP registration using the RFC 3344 procedure, then the mobile IP system maintains proper registration tracking, but significant RF bandwidth is consumed
Solution Approach 1:
The patent introduces a proxy mobile IP client as an intermediary between the mobile IP client and the foreign agent. This proxy performs the foreign IP registration procedure on behalf of the mobile node, maintaining proper registration tracking while significantly reducing RF bandwidth consumption. The proxy acts as a mediator that handles the registration communications locally rather than requiring the mobile node to directly communicate with the foreign agent over RF.
Solution Approach 2:
The proxy mobile IP client is configured with registration information and autonomously performs the foreign IP registration procedure without requiring the mobile node to initiate or participate in the RF communication for registration. The proxy serves itself by maintaining the registration state and handling the registration communications with the foreign agent, thereby eliminating the need for the mobile node to consume RF bandwidth for registration purposes.
2Ease of operation
If the mobile node directly communicates with the foreign agent for registration, then the registration is completed, but multiple RF communications are required
Solution Approach 1:
The proxy mobile IP client serves as an intermediary that consolidates the registration process. Instead of the mobile node engaging in multiple RF communications with the foreign agent, the proxy handles the registration communications locally through wired connections (such as Ethernet), thereby completing the registration function without requiring the mobile node to participate in multiple RF communication exchanges.
Solution Approach 2:
The patent replaces the mechanical RF communication system with a wired communication system for the registration process. The proxy mobile IP client communicates with the foreign agent through wired connections (such as Ethernet cables), substituting the wireless RF communication mechanism. This substitution eliminates the need for multiple RF communications while still achieving proper registration completion.
Data Source
AI summary
A proxy is utilized to limit the RF bandwidth needed for foreign IP registration. An existing RF log-in procedure causes the proxy to initiate and complete the foreign IP registration procedure with the foreign agent at the RF site where the mobile node is located. The proxy then acts as a locally connected (i.e., direct ethernet connected) device for each IP address for which it is proxying, and thus there is no need to use RF to register a mobile with the active foreign agent. This allows the use of off-the-shelf home and foreign agents to complete the mobile IP architecture, and reduces the RF bandwidth used, since the RF portion of the registration process (the registration between the active foreign agent and the mobile) is reduced.