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Detail
Registered APPARATUS AND METHOD OF TRANSMITTING AND RECEIVING WAKE-UP SIGNAL
- Inventors
- Cheonin Oh, Hoyong Kang, Son Kyohoon, Nae-Soo Kim
- Application No.
- 12613802 (2009.11.06)
- Publication No.
- 20100150042 (2010.06.17)
- Registration No.
- 8675688 (2014.03.18)
- Country
- UNITED STATES
- Project Code
- 08MC3300, Development of Sensor Tag and Sensor Node Technologies for RFID/USN, Cheol Sig Pyo
- Abstract
- 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.
- KSP Keywords
- Power Consumption, Radio Frequency(RF), Radio frequency (rf), Sleep mode, Time period, Wireless signals, wake-up