Wireless Relay Device Integrating Non-Routing Devices in Multi-Hop Networks
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Solution Overview
Problem
In wireless multi-hop networks, integrating a wireless device that does not support a routing protocol with a wireless relay device is challenging, as the relay device struggles to obtain and transmit route information, hindering the construction of a multi-hop network.
Innovation Solution
A wireless relay device is equipped with a determination unit to identify non-routing protocol-supported devices and a notification unit to inform the gateway or other relay devices, enabling the creation of route information and facilitating network integration through ARP and NDP tables, even if the wireless device does not support the routing protocol.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a wireless relay device uses RPL routing protocol to construct multi-hop network, then routing functionality is achieved, but it cannot integrate wireless devices that do not support routing protocol
Solution Approach 1:
The patent introduces an intermediary mechanism where the wireless relay device acts as a mediator between routing protocol-supported devices and non-supported devices. The relay device obtains route information from routing protocol operations and transmits it to non-routing devices, enabling these devices to participate in the network without requiring them to implement the full RPL protocol.
Solution Approach 2:
The patent segments the routing functionality from the communication functionality. The routing protocol operations are performed by the wireless relay device, while the non-routing wireless devices only need to handle basic communication. This segmentation allows different types of devices to coexist in the network with different levels of protocol support.
2Reliability
If wireless relay device obtains route information from routing protocol, then routing is enabled, but it cannot transmit route information to non-routing wireless devices
Solution Approach 1:
The wireless relay device serves as an intermediary that bridges the gap between routing protocol infrastructure and non-routing devices. It obtains reliable route information through RPL operations and adapts this information for transmission to non-routing wireless devices, ensuring both reliability and compatibility.
Solution Approach 2:
The patent changes the parameters of route information representation and transmission. Instead of using standard RPL route information formats that require routing protocol support, the relay device transforms and adapts the route information into a format that can be understood and processed by non-routing wireless devices.
Data Source
AI summary
In a multi-hop network including a wireless relay device and a gateway device, the wireless relay device includes a determination unit which determines whether a wireless device connected to the wireless relay device supports a routing protocol of the multi-hop network, and a notification unit which notifies the gateway device or another wireless relay device in the multi-hop network of information for identifying the wireless device when the determination unit determines that the wireless device does not support the routing protocol.