Communication system and recording medium, were recorded communication management method, communication terminal, central management device, communication management program, the communication management program

摘要

If the transmitting station which you have the voluntary transmission right, was transmitted to the HC the FINAL FRAME as TXOP end frame, HC, and returns an acknowledgment frame ACK to the SIFS after the completion of the reception of the FINAL FRAME. If it is detected that during this, during the PIFS, the transmission of frames in a communication network by ESTA any other is not performed from the transmission end of the FINAL FRAME transmission station, the transmission end of the FINAL FRAME the DIFS from within, I will re-send the FINAL FRAME. Possible by communicating such management, the network of a plurality of communication devices to share a time division network one path, even when the reliability of the communication path is low, to accurately perform control of voluntary transmission right it becomes.