Patent ID: 7835310

Claim:
A method for transmitting and receiving a signal between mobile nodes in a wireless local area network, the method comprising: exchanging a Request To Send (RTS) frame and a Clear To Send (CTS) frame between a first mobile node and a second mobile node through a common channel; receiving, by the first mobile node, a data frame from the second mobile node through a data channel; upon completely receiving the data frame, determining, by the first mobile node, if another mobile node is transmitting data through the data channel; and sending, to the second mobile node, an acknowledgement (ACK) frame through the common channel, the ACK frame notifying that the first mobile node has completely received the data frame, wherein, if the first mobile node determines another node is transmitting data through the data channel, the sending further comprises sending the ACK frame through the common channel, and the ACK frame is sent during transmitting data of another node, without waiting for the data of another node to be completely sent.