Abstract: A communication method in a wireless local area network and a communication device are disclosed. The method includes: A first multi-link device sending an indication to a second multi-link device through one or more links including a first link, the indication comprising a start time point and an identifier, the indication indicating the second multi-link device perform an operation related to a second link at the start time point, and the identifier identifying the second link or identifying a band that the second link is on. The second multi-link device performs, at a start time point in the indication, an operation related to a second link corresponding to an identifier in the indication, to avoid affecting execution of a low-latency service when a link is unavailable, reduce a latency of the low-latency service, and improve reliability.

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 communication method and system in a WLAN, and an apparatus, are disclosed. An access point device sends a first frame to a non-access point device. The first frame includes one or more groups of access point parameters. At least one group of the access point parameters includes parameters of a plurality of access points belonging to one neighbor device. The neighbor device is an access point multi-link device. The non-access point device is associated with the access point device.

Abstract: A terminal roaming method, an apparatus, and a wireless local area network are disclosed, and belong to the field of WLAN technologies. A session parameter used when a terminal performs data exchange with an original associated AP is migrated to a roaming target AP. After the terminal is associated with the roaming target AP, the roaming target AP can continue data exchange with the terminal based on the migrated session parameter, and the terminal can also continue data exchange with the roaming target AP based on the session parameter used when the terminal performs data exchange with the original associated AP. The terminal and the roaming target AP do not need to perform session negotiation again, to shorten a data service recovery time required after a roaming handover of the terminal, and reduce a service transmission delay. This improves smoothness of roaming handover of the terminal.