The invention relates to a
wireless communication technology, and discloses a
wireless communication method and
system. Under the condition of
network link congestion, the method and the
system ensure that the
data traffic of an important user is preferentially forwarded. The method comprises the steps of a, a
wireless router providing a plurality of SSIDs (
Service Set Identifiers) to the outside, configuring different
IP address pools for different SSIDs, and allocating different QoS (
Quality of Service) priorities for different
IP address pools; b, a user terminal sending an access request to a certain SSID of the
wireless router; c, the
wireless router authenticating an
authentication password sent by the user terminal according to the SSID requested to access by the user terminal, and allocating an
IP address to the user terminal from the IP
address pool corresponding to the SSID accessed by the user terminal after the
authentication passes; d, the user terminal using the IP address allocated to the user terminal; d, the user terminal transceiving data by using the IP address allocated to the user terminal; and e, when the user terminal needs to forward data, the
wireless router performing
QoS scheduling according to the IP address allocated to the user terminal and the priority strategy.