| 摘要 |
In the invention, wireless communication devices (1, 2, 3, 4) transmit beacon frames (101, 102, 103, 104) in an order in compliance with a CSMA/CA protocol. A wireless communication device (1) as a transmitting station of a multicast frame uses one (101) of the beacon frames to notify wireless communication devices (2, 3, 4) as receiving stations of the multicast frame that an ACK frame is to be transmitted when the multicast frame (111) is received. On receipt of the multicast frame (111), the wireless communication devices (2, 3, 4) as the receiving stations transmit ACK frames (121, 122, 123) in order of transmitting the beacon frames at SIFS intervals. |
