Localized Mobility Management Packet Routing Optimization
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Solution Overview
Problem
Localized Mobility Management (LMM) networks experience increased transmission delay and reduced efficiency due to alternative routing paths that require data packets to be forwarded through a Local Mobility Anchor (LMA), even when the sending and receiving end nodes are within the same domain.
Innovation Solution
Implementing a method and system for packet routing that enables route optimization by directly forwarding packets between access devices attached to sending and receiving end nodes within the same LMM domain, bypassing the LMA, and using a packet resolution module and forward module in the LMA to determine and enable this optimization based on predefined strategies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If data packets are forwarded through the LMA in LMM network, then routing control and mobility management are maintained, but transmission delay increases and system efficiency decreases
Solution Approach 1:
The patent segments routing into two types: default routing through LMA for mobility management, and optimized direct routing for same-domain communication. This allows the system to maintain reliable LMA-based routing control when needed while enabling low-delay direct routing for appropriate traffic patterns.
Solution Approach 2:
The patent changes the routing parameter dynamically based on the relative positions of sending and receiving nodes. When both nodes are in the same LMA domain, the routing path parameter is changed from LMA-mediated to direct routing, reducing transmission delay while maintaining routing control capabilities.
2Reliability
If data packets are forwarded through the LMA in LMM network, then mobility management is maintained, but system efficiency is reduced
Solution Approach 1:
The patent segments traffic handling into LMA-managed routing for mobility support and direct peer-to-peer forwarding for efficiency. This segmentation allows mobility management functions to be maintained through LMA while improving overall system efficiency by bypassing the LMA for data forwarding in same-domain scenarios.
Solution Approach 2:
The patent extracts the data forwarding function from the LMA for same-domain communications, allowing the LMA to focus on mobility management while direct routing handles data transmission. This extraction improves system efficiency by eliminating unnecessary LMA processing steps while preserving mobility management capabilities.
3Loss of time
If direct packet forwarding is implemented between access devices, then transmission delay is reduced, but routing complexity increases
Solution Approach 1:
The patent performs preliminary actions by having the LMA pre-establish routing information and relationships between access devices before direct forwarding occurs. This preliminary setup simplifies the actual direct forwarding operation, as access devices can use pre-computed routing information rather than performing complex real-time routing decisions.
Solution Approach 2:
The patent uses the LMA as an intermediary that facilitates direct routing by providing routing information and coordination services. The LMA acts as a mediator that enables simplified direct forwarding between access devices without requiring the devices themselves to implement complex routing logic.
Data Source
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AI summary
A method of packet routing for an LMM network includes: by an LMA, determining that both a sending end node and a receiving end node are located in an LMM domain controlled by the LMA, and starting a route optimization (301); directly forwarding, by an access device attached to the sending end node, a packet to be sent to the receiving end node to an access device attached to the receiving end node without being forwarded by the LMA; and forwarding, by the access device attached to the receiving end node, to the receiving end node (302).. A system of packet routing for an LMM network includes a sending end node (410), a receiving end node (450), an access device (420) attached to the sending end node, an access device (440) attached to the receiving end node, and an LMA (430).