Electronics and Telecommunications Research Institute

Cheon In Oh

Nae Soo Kim

Hyun Seo Oh

Hyun Kyun Choi

Ho Yong Kang

Kyo Hoon Son

Kyeong-Soo Han

In a vehicle communication system, a frame transmitting apparatus gives a transmission opportunity to an emergency frame received from an upper layer without EDCA (Enhanced Distributed Channel Access), and gives a transmission opportunity to a generic frame received from an upper layer through EDCA.

Apparatus and method for transmitting frame in vehicle communication system based on wireless access for vehicular environment

Provided are an apparatus and method of transmitting and receiving a wake-up signal. The method of receiving a wake-up signal includes the following: operating a radio frequency (RF) receiving unit that receives a wireless signal through an antenna during an SFD detecting time, wherein the SFD detecting time is shorter than a predetermined SFD detecting time period, according to the predetermined SFD detecting time period and detecting a start of frame delimiter (SFD) to indicate that the received wireless signal is a wake-up signal to wake-up a node in a sleep mode; and detecting the wake-up signal by continuously operating the RF receiving unit when the SFD is detected. Power consumption that is used to receive the wake-up signal can be reduced.

Apparatus and method of transmitting and receiving wake-up signal

Growing community of inventors

Daejeon, South Korea

Cheon In Oh