| 摘要 |
There is provided a wireless LAN system including a wireless terminal which transmits a frame to and receives a frame from other wireless terminals for connecting wireless channel therebetween, and then transmits data to and receives data from the other wireless terminals through the wireless channel. The other wireless terminals stop transmission on receiving the frame from the wire terminal. The wireless terminal is designed to transmit a frame to and receive a frame from the other wireless terminals at a first data transfer rate for connecting wireless channel therebetween, and thereafter transmit data to and receive data from the other wireless terminals at a second date transfer rate greater than the first data transfer rate. The above-mentioned wireless LAN system ensures that wireless channel connection by means of RTS frame or CTS frame is established at a constant data transfer rate, for instance, at 2.0 Mbps, and data is transferred at a high rate, for instance, at 4.8 Mbps. Hence, when data is to be transferred at a high rate in an IEEE 802.11-standardized wireless LAN network area, a wireless terminal which transfers data at a low rate can surely realize establishment of wireless channel connection, resulting in that a problem of hidden wireless terminals can be solved.
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