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

摘要

In a wireless network structure which includes a wireless LAN device having a base station function (host device) which is compliant with IEEE802.11h and at least one wireless LAN device having a terminal function (slave device) which is not compliant with IEEE802.11h, the incompliant terminal transmits a probe request to the base station for confirming the presence of the base station. When the base station has dynamically switched its channel (frequency), a probe response is not returned from the base station to the terminal. Thus, the incompliant terminal transmits a probe request through a different channel in order to confirm the presence of the base station. The incompliant terminal repeats the above channel search process till the base station is found.