Electronics and Telecommunications Research Institute

Hyun-Yong Hwang

Tae-Man Han

Jeong-Hwan Lee

Joo-Chul Lee

Seung-Woo Lee

Jae Heung Kim

Changhee Lee

Jung-Im Kim

Bhum-Cheol Lee

Jung-Hee Lee

Dae-Geun Park

Ok-Sun Park

JaeSheung Shin

Sung-Min Oh

Chang-Min Shin

Young-Ho Park

Jeong-Hwan Kim

Seo-Hyun Jeon

Chang-Gyu Lim

Taesoo Kwon

Mi-Ryong Park

Kyung-pyo Jun

Young-sun Kim

Jee-Sook Eun

Yang-Jae Jeong

Chul-Hong Kim

Disclosed is a random access method and device. A terminal generates a random number for a random access, and compares the random number and a setting value. When the random number is included in the setting value, the terminal transmits a preamble for a random access to a base station and attempts a random access.

Random access method and device

A base station infers a random access failure rate depending on a random access collision of terminals performing random access and controls a random access opportunity of a terminal that fails the random access by using the random access failure rate of each terminal. Also, information for the controlled random access opportunity is transmitted to the terminal that fails the random access.

Method and apparatus for controlling random access opportunity in mobile communication system

A frame conversion apparatus for converting a CAN frame into an Ethernet frame and a frame conversion method thereof, configured to efficiently convert CAN frame data into Ethernet frame data, to achieve high-speed and high-volume transmission.

Frame conversion apparatus for converting controller area network frame into ethernet frame and frame conversion method thereof

The present invention provides a method and apparatus for setting up a gateway for an AUTOSAR-based vehicle network. The apparatus for setting up the gateway includes a candidate selection unit for selecting an Electronic Control Unit (ECU) connected to at least two communication clusters, from among a plurality of ECUs, as a gateway candidate, and a gateway generation unit for generating a gateway instance with reference to the ECU selected by the candidate selection unit, and generating a gateway meta-model including the gateway instance based on instance generation input values entered by a user.

Method and apparatus for setting up gateway for AUTOSAR-based vehicle network

The present invention relates to a automotive partial networking apparatus and method, which operate or terminate only a specific electronic control unit corresponding to a service currently being provided in a vehicle network composed of a plurality of electronic control units. In the automotive partial networking method, a automotive partial networking apparatus receives a partial networking-only Controller Area Network (CAN) frame from outside of the apparatus. A partial network table is searched based on the CAN frame, and then a CAN identification (ID) is searched for. A partial networking-only CAN frame is generated using the CAN ID. Partial networking is performed by transferring the generated partial networking-only CAN frame to at least one electronic control unit corresponding to a vehicle service.

Automotive partial networking apparatus and method

Disclosed herein are an apparatus and method for collecting vehicle diagnostic information. The apparatus for collecting vehicle diagnostic information includes a conversion unit and an optical multiplexing unit. The conversion unit receives a plurality of frames complying with respective different protocols from a plurality of networks for vehicles, which collects vehicle diagnostic information, in electric signal form, and converts the plurality of frames into a plurality of optical signals having respective different wavelengths based on the wavelengths previously assigned to the respective protocols. The optical multiplexing unit generates a wavelength division multiplexed signal by performing wavelength division multiplexing (WDM) on the plurality of optical signals, and transmits the wavelength division multiplexed signal via an optical cable.

Apparatus and method for collecting vehicle diagnostic information

Provided are a method and apparatus for dynamically managing hierarchical flows that more efficiently process packet traffic while maintaining compatibility with an existing packet data network in transferring both circuit traffic and packet traffic in a packet switched network. The method for dynamically managing hierarchical flows includes: receiving data packets, classifying the data packets according to attributes of the received data packets, and producing first flows; determining whether traffic of each of the first flows exceeds a predetermined bandwidth limit, and performing a packet drop process or producing second flows for first flows that exceed the bandwidth limit, according to a flow-specific policy; and performing second flow processing on the second flows according to a second flow policy. Only flows exceeding the bandwidth limit or causing congestion are hierarchically divided for management. This makes it possible to finely manage the flows without complex operations.

Method and apparatus for dynamically managing hierarchical flows

Growing community of inventors

Daejeon, South Korea

Hyun-Yong Hwang