LPWA IP Packet Encapsulation for Secure IoT Network Integration
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Solution Overview
Problem
Existing low-power wide area (LPWA) communication technologies in IoT systems lack support for IP connectivity, complicating the integration and management of diverse, non-standardized devices and limiting the development of robust, distributed IoT applications.
Innovation Solution
Modifying LPWA communication technologies to support IP connectivity by enabling IP operations such as address negotiation, secure login, and routing, allowing IoT devices to participate in broader IP-based networks and systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If LPWA communication technologies are used without IP connectivity support, then power consumption is reduced and simple device communication is enabled, but device integration into broader networks and application functionality are limited
Solution Approach 1:
The patent introduces a gateway as an intermediary component that bridges LPWA devices without native IP support and IP-based networks. The gateway performs protocol translation and data formatting, allowing LPWA devices to communicate with IP networks without modifying the simple LPWA protocol itself, thus achieving IP connectivity while maintaining protocol simplicity.
Solution Approach 2:
The communication system is segmented into distinct functional layers: LPWA devices operate at a simple data link layer, while the gateway handles IP protocol operations at higher layers. This segmentation allows IP connectivity to be added at the gateway level without increasing complexity at the LPWA device level, resolving the contradiction between adaptability and device complexity.
2Reliability
If LPWA protocol is modified to support IP operations, then network integration and security are improved, but protocol compatibility with existing LPWA systems deteriorates
Solution Approach 1:
The gateway serves as a security intermediary that provides IP-based security mechanisms (authentication, encryption) for LPWA devices without requiring them to implement complex security protocols. The gateway handles security operations at the IP layer while maintaining compatibility with simple LPWA device protocols.
Solution Approach 2:
Security functions are segmented and implemented at the gateway level rather than at the LPWA device level. This allows IP-based security mechanisms to be added to the system without modifying the existing LPWA protocol, thus maintaining protocol compatibility while improving security.
3Adaptability or versatility
If LPWA devices are equipped with full IP stack, then IP-based services and routing are enabled, but device power consumption increases
Solution Approach 1:
The gateway acts as an intermediary that provides IP-based services to LPWA devices without requiring the devices themselves to implement full IP stacks. The gateway performs routing, address negotiation, and IP protocol operations, allowing LPWA devices to remain power-efficient while still accessing IP-based services through the gateway's mediation.
Solution Approach 2:
The IP protocol stack is segmented and implemented at the gateway rather than at the LPWA device level. This segmentation allows IP-based service capability to be provided without increasing power consumption at the device level, as the simple LPWA devices only need to communicate basic data with the gateway.
Data Source
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AI summary
A device includes a microcontroller and communications logic to identify data to be sent to another device and encapsulate the data in a data link layer frame of a wireless data link layer protocol. The data link layer frame includes a particular field and the particular field encapsulates Internet Protocol (IP) packet data, and the data is encapsulated in the IP packet data. The device further includes a transmitter to send the data to the other device over a one-hop radio link according to a low power wide area (LPWA) protocol, and the data link layer frame is sent in a physical layer frame of the LPWA protocol.