Method for transmitting data using implicit forward orderinginformation obtained through DCF(Distributed Coordination Function) contention in wireless LAN, and wireless communication device for transmitting data using it

摘要

Data transfer method using a forward order implicit information obtained through the competition by a distributed coordination function of the wireless LAN and the wireless communication apparatus is disclosed for transmitting data by using this. Data transmission method using the forward order information of the second terminal is implied by the DCF compete in the second transfer step subsequent to the first round to round success in data transmission sent on the DCF competition in the first round the first transmitting terminal If the second round of step to successfully transfer data via the transport channel for PIFS first terminal to the second terminal transmitting the last elected confirming to the first terminal is a terminal identified in the sequence in progress in the terminal appoint round Following that step, and the first terminal is set forward sequence to obtain a channel implies that the license is no DCF competition following the confirmation terminal elected without competition DCF implied by the forward order set comprising the step of transmitting the data. According to the invention, can significantly reduce the back-off slot in the competition and collision due to DCF, provides a high transmission rate than the conventional DCF. In addition, there is no overhead due to the additional control messages because the forward order information suggests that the terminal can operate in a distributed manner, communication is possible with the existing terminal in a wireless network using the AP or the DCF. ;