Patent ID: 7801095
Filing Date: 2010-09-21
Classification: H04L,H04W

Abstract:
1. A method for detecting a data transmission mode in a wireless local area network system, the method comprising: transmitting, by an access point (AP), a Beacon signal to a wireless terminal in a broadcasting method; transmitting, by the wireless terminal, in response to receipt of the Beacon signal, a Probe Request message to the access point (AP), in order to connect a Wi-Fi link; transmitting, by the access point (AP), a Probe Response message of the request message to the wireless terminal in response to receiving the Probe Request message from the wireless terminal; transmitting, by the wireless terminal, in response to receiving the Probe Response message, an Association Request message for connecting the Wi-Fi link with the corresponding access point (AP), to the access point; transmitting, by the access point (AP), an Association Response message to the wireless terminal in response to the Association Request message; connecting the Wi-Fi link between the access point (AP) and the wireless terminal; when the data transmission mode is switched at the access point (AP), transmitting, by the access point (AP), the Beacon signal comprising an arbitrary information field information on the switched data transmission mode to the wireless terminal through a network; switching, by the wireless terminal, a currently set mode according to the Beacon signal comprising the switched data transmission mode information transmitted from the access point (AP); transmitting a second association request message from the wireless terminal to the access point (AP) to re-connect with the access point (AP) in the switched data transmission mode; and transmitting a second association response message from the access point to the wireless terminal in response to the second association request message to connect a new Wi-Fi link between the wireless terminal and the access point in the switched data transmission mode.