Wireless network having IEEE802.11h-incompliant terminal wireless device communicating with IEEE802.11h-compliant base wireless device

A wireless device which has a terminal function compliant with IEEE802.11 standard but incompliant with IEEE802.11h standard, the wireless device being included in a wireless network formed by a wireless device having a base station function compliant with IEEE802.11h standard, the terminal wireless device comprising:

• a probe request transmission circuit for transmitting a probe request to the base station wireless device, the probe request being used for confirming whether or not the base station wireless device and the incompliant terminal wireless device of the same wireless network exist in the same channel;
• and
• a base station presence confirmation circuit for receiving a probe response which is transmitted from the base station wireless device in response to the probe request transmitted by the probe request transmission circuit, thereby confirming the presence of the base station wireless device.