发明名称 |
Hidden node detection method and apparatus in wireless communication system |
摘要 |
Provided is a hidden node detection method and apparatus in a wireless communication system, the apparatus including a sensing unit to sense a first communication device transmitting a data signal from among a plurality of communication devices sharing a wireless channel, a transmitter to generate a reception notification signal in response to the sensing, and transmit the reception notification signal to the a plurality of communication devices through a band identical to a transmission band of the data signal, and a controller to prevent a collision with the data signal transmitted from the first communication device through the wireless channel by delaying processing of a data transmission request when the data transmission request is input from a second communication device among the plurality of communication devices while maintaining the transmitting of the reception notification signal. |
申请公布号 |
US9532381(B2) |
申请公布日期 |
2016.12.27 |
申请号 |
US201414461124 |
申请日期 |
2014.08.15 |
申请人 |
Electronics and Telecommunications Research Institute |
发明人 |
Yoo Sung Jin;Pak Jin Suk;Jeong Byung Jang;Hwang Sung Hyun |
分类号 |
H04W4/00;H04W74/08 |
主分类号 |
H04W4/00 |
代理机构 |
William Park & Associates Ltd. |
代理人 |
William Park & Associates Ltd. |
主权项 |
1. A hidden node detection apparatus in a wireless communication system, the apparatus comprising:
a sensing unit to sense a first communication device transmitting a data signal from among a plurality of communication devices sharing a wireless channel; a transmitter to generate a reception notification signal in response to the sensing, and transmit the reception notification signal to a plurality of communication devices through a band identical to a transmission band of the data signal, wherein the transmitter transmits the reception notification signal continuously when an intensity of the transmitted data signal is greater or equal to a set threshold or a frame length of the transmitted data signal is less than an overall frame length value; and a controller to prevent a collision with the data signal transmitted from the first communication device through the wireless channel by delaying processing of a data transmission request when the data transmission request is input from a second communication device among the plurality of communication devices while maintaining the transmitting of the reception notification signal, wherein the controller controls a data signal of the second communication device when the transmission of the reception notification signal is suspended. |
地址 |
Daejeon KR |