Wireless communication method, access point, and station

#The present disclosure relates to the wireless communication field, and in particular embodiments, to a wireless communication method, an access point, and a station.

#As a WLAN (Wireless Local Area Network) system works on an unlicensed spectrum, other users on a channel may share the spectrum. If multiple users send data simultaneously, mutual interference may occur and collision is caused. Currently, the WLAN system uses a CSMA/CA (Carrier Sense Multiple Access with Collision Avoidance) mode to avoid collision. However, the CDMA/CA working mode is relatively inefficient. Especially, in a circumstance in which APs (Access Point) and STAs (Station) are deployed densely, a probability of collision from channel contention increases significantly, and MAC (Media Access Control) efficiency decreases significantly.

#In an LTE (Long Term Evolution) system, to ensure high MAC efficiency, a scheduling-based transmission mode is used. In the scheduling-based transmission mode, user equipment does not need to acquire a transmit opportunity by means of channel contention, and a base station allocates time-frequency resources and performs scheduling for each user equipment to perform uplink and downlink transmission. Currently, the scheduling mode is used only on a licensed spectrum. Because there is no collision from channel contention, this mechanism can implement MAC efficiency of about 80%.

#To describe the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings required for describing the embodiments of the present invention. Apparently, the accompanying drawings in the following description show merely some embodiments of the present invention, and a person of ordinary skill in the art may still derive other drawings from these accompanying drawings without creative efforts.

#FIG. 1 is a schematic structural diagram of a communications system to which a wireless communication method and an access point according to an embodiment of the present invention are applicable;

#FIG. 2 is a schematic flowchart of a wireless communication method according to an embodiment of the present invention;

#The following clearly describes the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present disclosure.

#It should be understood that the technical solutions of the embodiments of the present invention may be applied to a communications system, such as a WLAN system, that uses an unlicensed spectrum resource.

#It should also be understood that in the embodiments of the present invention, an access point is a network device, such as an AP in a WLAN system, that provides an access service; a station is another device that accesses the access point through a wireless network to perform communication, for example, user equipment (“UE” for short) that may be called a terminal, a mobile station (“MS” for short), a mobile terminal, and the like, which is not limited in the present disclosure. However, for ease of description, the following embodiments use an access point AP and a station STA as examples for description.