Mobile Node Clone List for Packet Radio Routing
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Solution Overview
Problem
Conventional mobile nodes in packet radio communication systems require frequent registration requests and increased over-the-air signaling when moving between network portions, leading to reduced communication capacity due to the need for constant updates of routing information.
Innovation Solution
A clone list is provided to the mobile node, containing multiple Network Provider Code (NPC) entries that store host routing information, allowing the mobile node to access and use the same routing information across different network portions, reducing the need for additional registration requests and over-the-air signaling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the mobile node frequently requests routing information updates when moving between network portions, then the routing accuracy is improved, but the over-the-air signaling overhead increases and communication capacity decreases
Solution Approach 1:
The system performs preliminary action by providing the mobile node with a clone list containing multiple NPC entries and corresponding routing information in advance, before the mobile node actually moves between network portions. This allows the mobile node to have routing information ready for multiple potential network portions, reducing the need for frequent update requests during movement.
Solution Approach 2:
The system implements dynamics by allowing the mobile node to dynamically select and use appropriate routing information from the clone list based on its current network portion, rather than requiring static or frequently updated single-source routing information. The mobile node can switch between different NPC entries in the clone list as it moves, maintaining accurate routing without constant updates.
2Adaptability or versatility
If the mobile node stores comprehensive routing information for all network portions, then the routing capability is improved, but the memory requirements and device complexity increase
Solution Approach 1:
The system applies copying by creating a clone list that contains copies of routing information for multiple network portions (represented by NPC entries). Instead of storing complete routing tables for all possible network portions, the mobile node receives cloned or copied routing information for specific network portions it is likely to visit, reducing memory requirements while maintaining routing capability.
Solution Approach 2:
The clone list structure provides universality by enabling a single data structure to serve multiple network portions. Each NPC entry in the clone list represents routing information that can be applied universally across different network portions, allowing the mobile node to handle multiple network environments with a unified routing mechanism rather than requiring separate routing tables for each network portion.
3Measurement precision
If the system provides updated routing information for each new network portion, then the routing accuracy is improved, but the registration request frequency increases and communication efficiency decreases
Solution Approach 1:
The system performs preliminary action by providing the mobile node with routing information for multiple network portions in advance through the clone list, before the mobile node actually needs to use it. This preliminary provision of routing information eliminates the need for frequent registration requests when the mobile node moves between network portions, maintaining routing accuracy while improving communication efficiency.
Solution Approach 2:
The system implements continuity of useful action by ensuring the mobile node continuously has valid routing information available through the clone list as it moves between network portions. Instead of interrupting communication for frequent registration requests, the mobile node can continuously use the pre-provided routing information from the clone list, maintaining both routing accuracy and communication efficiency.
Data Source
AI summary
Apparatus, and an associated method, for facilitating routing of data in a packet radio communication system. A clone list is downloaded to the mobile node and stored at a clone list depository thereat. The clone list includes a plurality of entries, each of which provides routing information needed to route data when the mobile node is positioned within coverage areas encompassed by differing networks. A determination is made whether the clone list includes appropriate routing information to route a data packet sent by the mobile node positioned in a particular area encompassed by a particular network portion. If the clone list includes an entry containing such information, the need separately to request such information is obviated.