METHOD FOR PROTECTING CONTROL DATA IN MULTIMEDIA BROADCASTING CIRCUMSTANCE USING WIRELESS LAN

摘要

the present invention is a wireless LAN environment using multimedia broadcasting in the control of data protection by way of prior art, control was transferred data and other AV stream data in the same wireless LAN setting, the problem is that is not protected to the control data. In consideration of these problems, the present invention is a method of setting the transmitting WLAN 802.11b / g does not support 802.11e, data transmission using the transmitter and 802.11g node determining whether the control data, the determination If not the result of the control data and the step of setting to not send a CTS-to-Self frames, if the judgment result of the control data to determine if a node exists 802.11b, in the case of 802.11b node exists CTS-to-Self frames the steps of the set up to send, if the judgment result of the control data to determine if a node exists 802.11b, 802.11b If a node does not exist, is composed of steps to disable sending a CTS-to-Self frame control data there is an effect that can minimize the transmission time and to ensure the reliable transmission of.