Electronics and Telecommunications Research Institute

Jung-Soo Park

Hyoung-Jun Kim

Myung-Ki Shin

Yong-Geun Hong

Tae-Wan You

Ki-Shik Park

An Internet-of-Things (IoT) system for public transportation service and a method of operating the same are disclosed. The IoT system includes on-vehicle devices, a management server, a plurality of bus stop access points (APs), and a wired/wireless bus stop access point (AP) communication network. The on-vehicle devices are mounted within a bus, i.e., a public transportation means. The management server is connected to the bus over an Internet, i.e., a wireless communication means. The plurality of bus stop APs are short distance communication APs, and are each provided in each bus stop at which the bus stops and configured to enable information to be exchanged between the bus stop and the bus. The wired/wireless bus stop AP communication network connects the plurality of bus stop APs. The management server performs Internet access processing to connect the bus stop AP communication network and an external terminal.

Internet-of-things system for public transportation service and method of operating same

Provided is a method of operating a tunnel point that provides a tunnel between a router group including at least one router and a mobile node. The method includes: providing a tunnel between the mobile node and the router group by authenticating the mobile node; receiving a packet including an identifier (ID) of a target node from the mobile node; converting the ID of the target node in the packet into a locator corresponding to the ID of the target node; transmitting a packet including the converted locator to the router group; and maintaining the ID of the mobile node by authenticating the mobile node through the router group when the mobile node is connected to another external terminal node.

Method of operating tunnel point supporting routing scalability and mobility

Provided is a mobile IPv6 fast handovers method, which includes the steps of: a) if a mobile node is moved in a layer 2, receiving a modified RS message from a mobile node in the access router, b) detecting movement of the mobile node in a layer 3 in the access router, c) if the mobile node makes a movement in the layer 3, generating CoA of the mobile node in the access router; d) performing Duplicate Address Detection in the access router to inspect uniqueness of the generated CoA; and e) transmitting a modified RA message to the mobile node in the access router. The Fast Handovers method of the present research performs fast movement detection by using layer 2 information simply and efficiently for fast handover in the mobile IPv6 and generates CoA in the access router instead of the mobile node without operations of many additional messages.

Growing community of inventors

Daejeon, South Korea

Jung-Soo Park