Mobile Terminal Management System PMIP CMIP Mode Selection
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Solution Overview
Problem
Current mobile terminal management systems lack the ability to freely control whether a mobile terminal operates using Proxy Mobile IP (PMIP) or Client Mobile IP (CMIP) functions without relying on the MIP function, limiting network administrators' flexibility in managing mobile terminal operations.
Innovation Solution
A mobile terminal management system that allows network devices to notify mobile terminals of their PMIP functionality, enabling rapid decision-making between PMIP and CMIP operations based on network administrator policies, using existing MIP protocols to minimize system modifications and ensure compatibility with various terminals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the network uses existing MIP protocols to notify mobile terminals of PMIP functionality, then the system maintains compatibility with various terminals and minimizes modification complexity, but the network loses the ability to freely control whether mobile terminals operate using PMIP or CMIP functions
Solution Approach 1:
The patent introduces a new parameter (operation mode indicator) in the MIP protocol messages to control terminal behavior. By modifying the protocol parameters to include this indicator, the system enables network administrators to freely select between PMIP and CMIP operation modes while maintaining compatibility with existing terminals through gradual deployment.
Solution Approach 2:
The patent makes the terminal operation mode dynamic rather than fixed. The network can dynamically switch between PMIP and CMIP modes based on terminal capabilities and network policies, allowing flexible control while maintaining adaptability to different terminal types through runtime mode selection.
2Loss of time
If the mobile terminal rapidly decides between PMIP and CMIP operations based on network notification, then hand-over time and service interruption are reduced, but the terminal must process additional protocol information increasing processing complexity
Solution Approach 1:
The patent applies preliminary action by having the network notify the terminal of PMIP functionality and operation mode preferences before hand-over occurs. This advance notification allows the terminal to pre-configure the appropriate operation mode, enabling rapid mode switching during hand-over without increasing processing complexity at the critical moment.
Solution Approach 2:
The patent uses the MIP protocol messages as an intermediary to convey operation mode information from the network to the terminal. This intermediary mechanism efficiently transmits control information without requiring complex terminal processing, as the protocol structure already exists and can be extended with minimal overhead.
Data Source
AI summary
The object of the present invention is to provide a mobile terminal management system in which a mobile terminal can rapidly decide a PMIP operation or CMIP operation in accordance with the policy of a network administrator. According to the present invention, a network notifies a mobile terminal whether or not the mobile terminal is operable with the PMIP function. Moreover, the mobile terminal of the present invention transmits, to the network, notification saying that a use request for CMIP function has been stored in accordance with the policy of a terminal side, such as user setting or service contents, upon connection or hand-over to the access network.