Distributed Wireless Packet Assembly for Roaming Redundancy
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Solution Overview
Problem
Packet-based wireless communication networks face inefficiencies and redundancy issues due to reliance on a single network point for message transmission, particularly when mobile devices roam, leading to potential message loss and the need for resenting entire messages.
Innovation Solution
A distributed system where interface devices within a coverage area take ownership of data packet sequences, request and assemble missing packets, and reassemble messages upon receipt, enhancing redundancy and scalability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single network point is used for message transmission, then the system structure is simple, but redundancy and scalability are insufficient
Solution Approach 1:
The gateway is segmented into multiple interface devices distributed across different network points. Each interface device can independently receive and process data packets, allowing the system to maintain functionality even if individual devices fail. This segmentation provides redundancy while keeping each individual device relatively simple in structure.
2Productivity
If a single network point is used for message transmission, then the system is easy to operate, but efficiency is reduced when mobile devices roam
Solution Approach 1:
Multiple interface devices are merged into a cooperative system where they share information about received data packets through inter-device communication. When a mobile device roams between network points, the interface devices can collaborate to assemble the complete message from packets received at different locations, maintaining high efficiency without requiring complex manual intervention.
3Reliability
If all packets are sent to a single network point, then packet routing is simple, but message loss occurs during roaming and entire messages must be resent
Solution Approach 1:
Interface devices perform preliminary actions by storing and holding data packets received from mobile devices before the complete message is needed. When a mobile device roams, the packets already captured by different interface devices are preserved and can be assembled later, preventing message loss and eliminating the need to resend entire messages.
Solution Approach 2:
An intermediary communication mechanism is established between interface devices, allowing them to share information about received packets. This intermediary system coordinates the collection of packets from multiple network points and facilitates their assembly into complete messages, ensuring reliable delivery during roaming without requiring message resending.
4Reliability
If a single network point handles all packets, then the system is scalable in a simple way, but redundancy requirements are not met
Solution Approach 1:
Each interface device in the distributed system is designed with multi-functionality, capable of receiving data packets, storing them temporarily, communicating with other interface devices, and participating in message assembly. This universal design allows any interface device to perform multiple roles, providing system redundancy without requiring complex specialized components for each device.
Data Source
AI summary
Distributed assembly of data packets into messages at a group of interface devices that receive data packets from within a coverage area. Each interface device in the group will take ownership of a sequence of data packets forming a message when a data packet of the message meeting predetermined criteria is received by that interface device. Once an interface device takes ownership of a sequence of data packets, it sends a request to the other interface devices for any missing data packets of the sequence that the ownership claiming interface does not have, and then assembles message upon receiving all the data packets of the sequence.