Broadcast Packet Handling in Mobile IP Networks
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Solution Overview
Problem
Current methods for distributing broadcast packets across multiple Mobile Internet Protocol nodes result in excessive traffic between the Home Agent and Packet Data Serving Node, leading to network congestion.
Innovation Solution
Implementing a method where the Packet Data Serving Node determines whether to use a first or second broadcast packet handling approach, with the second approach involving the Home Agent transmitting a shared version of broadcast packets to multiple mobile stations, reducing redundant transmissions and optimizing bandwidth utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the Home Agent transmits discrete versions of broadcast packets to each mobile station through multiple tunnels, then each mobile node can receive broadcast packets, but the volume of traffic between the Home Agent and Packet Data Serving Node increases considerably
Solution Approach 1:
The patent combines multiple discrete broadcast packet transmissions into a single shared transmission. Instead of the Home Agent sending separate broadcast packets through multiple tunnels to each mobile node, the system establishes a single broadcast tunnel that carries broadcast packets to multiple mobile nodes simultaneously. This merging approach maintains reliable delivery to all subscribed nodes while dramatically reducing the volume of traffic between the Home Agent and Packet Data Serving Node.
2Adaptability or versatility
If multiple Mobile Internet Protocol nodes request broadcast packet forwarding, then broadcast packets can be distributed to all nodes, but redundant transmissions occur and bandwidth utilization decreases
Solution Approach 1:
The patent implements a universal broadcast tunnel that serves multiple mobile nodes simultaneously. The Packet Data Serving Node maintains a list of mobile nodes subscribed to broadcast packets and uses a single tunnel to deliver broadcast packets to all subscribed nodes. This multi-functional approach allows the same broadcast packet transmission to serve multiple purposes (delivering to multiple nodes) without creating redundant transmissions, thereby optimizing bandwidth utilization while maintaining broad distribution capability.
Data Source
AI summary
A first network element determines (11) that a given mobile node using mobile Internet Protocol should receive subsequent broadcast packets as may be sourced by a corresponding Home Agent. This first network element can then determine (12) whether to support such subsequent broadcast packets using a first broadcast packet handling approach or a second broadcast packet handling approach.