Protocol data unit transmission machines and methods (PPDU), request-to-send frame transmission machines and methods (RTS), delete-to-send frame transmission machines and methods (CTS), computer-readable electronic devices and storage media

Abstract

The invention relates to a device and method for transmitting protocol data units (PPDU), and relating to the field of communication technologies, to indicate a station (STA), a channel for carrying clear-to-send frames (CTS). By this method, the first device can carry the first data unit. The first data unit may include at least a second and a third data unit. The second data unit is used to carry the first multi-user request to send (MU-RTS) frame. The third data unit is used to carry the second MU-RTS frame. The first and second MU-RTS frames use the same scrambling initialization values. Based on the above solution, the access point (AP) can point to multiple STAs by using multiple MU-RTS frames, and channels to respond to CTS frames. The AP can indicate the first MU-RTS frame and the second MU-RTS frame to use the same scrambling code initialization value. This can avoid conflicts between different CTS frames. The invention also proposes a machine and method for transmitting request-to-send frames (RTS), a machine and method for transmitting scrambling frames for sending CTS, an electronic device and a computer-controlled vertical storage medium.