Mobile Terminal Multiple Prefix Selection for PMIP Route Optimization
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Solution Overview
Problem
Current mobility management protocols, such as PMIPv6, face challenges in optimizing route selection and reducing signaling load during mobile terminal movements across different network domains, leading to inefficiencies in communication and increased resource consumption.
Innovation Solution
A communication control method that allows a mobile terminal to acquire and utilize multiple prefixes from an access router, enabling optimized route selection and reduced signaling load by registering binding information with a location management node, thereby facilitating efficient communication without burdening the PMIP domain with excessive signaling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a mobile terminal frequently changes connection points in a network, then mobility support is improved, but signaling load and network throughput increase due to repeated location updates
Solution Approach 1:
The patent segments the mobility management function by introducing a local mobility anchor (LMA) that handles location updates within a local mobility management domain. This segmentation allows mobile terminals to change connection points locally without triggering global signaling to the home agent, thus reducing overall signaling load while maintaining mobility support.
Solution Approach 2:
The local mobility anchor acts as an intermediary between the mobile terminal and the home agent. It intercepts and processes location update signaling within the local domain, preventing excessive signaling from reaching the home agent and network-wide databases, thereby reducing the quantity of signaling traffic.
2Productivity
If route optimization is implemented with multiple prefixes, then communication efficiency is improved, but device complexity increases due to multiple address management
Solution Approach 1:
The mobile terminal autonomously selects appropriate prefixes from multiple available prefixes based on the destination address. This self-service mechanism allows the terminal to perform route optimization without complex network control, improving communication efficiency while keeping device complexity manageable through automatic decision-making algorithms.
Solution Approach 2:
The system changes the parameter of prefix selection dynamically based on communication conditions. The mobile terminal evaluates multiple prefixes and selects the optimal one for each communication session, enabling route optimization without requiring permanent complex configuration, thus balancing communication efficiency and device complexity.
Data Source
AI summary
A technology is disclosed with which a mobile terminal moving in a PMIP domain receives various types of prefixes and selects a type of an address to be configured, and route optimization is performed without adding a signaling load on the PMIP domain. According to the technique, when connecting with a home domain, a MN (310) requests a plurality of prefixes. When a MAG (320) makes an AAA server (340) authorize the MN and receives a notification instruction of the plurality of prefixes from the AAA server, the MAG 320 makes a notification of the plurality of prefixes with a RA message (364), for example. The MN configures a plurality of addresses (for example, a PMIP address including a PMIP domain prefix or a global address including an on-link prefix) from the plurality of prefixes received and notifies the MAG of the same. The MAG registers a plurality of bindings relating to the plurality of addresses with a LMA (330).