A method for cooperative transmission, the access point, the server site, and

The present invention discloses a method for coordinated transmission, AP, server and STA. The method comprising: AP receiving an uplink preamble training sequences sent by the STA; uplink quality information of the AP is determined based on the uplink preamble training sequence; the AP transmits the uplink quality information to the server so that the server based on the uplink determining downlink channel quality information cooperative transmission set. A method for coordinated transmission of the present embodiment of the invention, AP, server, and the STA, AP may implement a plurality of cooperative transmission, it is possible to improve data throughput.