Abstract: A communication method includes that a sharing AP selects a first beam width used to schedule a sharing STA during coordinated transmission, and the sharing AP sends a coordinated transmission notification to a shared AP, where the coordinated transmission notification includes a coordinated transmission parameter, where the coordinated transmission parameter is obtained based on the sharing STA and the first beam width, where the coordinated transmission notification indicates the shared AP to select, based on the coordinated transmission parameter, a shared STA and a second beam width that are used for coordinated transmission, where the second beam width is one of adjustable beam widths of the shared AP, and where the first beam width is one of at least two adjustable beam widths of the sharing AP.

Abstract: A coordinated transmission method for a wireless local area network and an apparatus are disclosed. A sharing access point (AP) sends a first frame to a first station (STA) on a channel when a condition is met, to detect an interference resource unit, the channel is a channel on which the sharing AP and a first shared AP perform coordinated transmission. The sharing AP is a serving AP of a first STA. The first frame indicates the first STA to use a first resource unit when replying to the first frame. The interference resource unit is the first resource unit on which the reply from the first STA is not received.

Abstract: A congestion control method includes that a first access point receives a first indication from a second access point; and the first access point performs traffic control on a non-key service of the first access point based on the first indication. The first access point is a neighboring access point of the second access point, and an operating channel of the first access point and an operating channel of the second access point overlap.

Abstract: A traffic control method includes an access point configured to decrease a value of a receive window (RWND) field in a Transmission Control Protocol (TCP) packet sent to a target station to obtain a modified TCP packet. The access point sends a downlink frame including the modified TCP packet to the target station. The TCP packet belongs to a non-key service.