Access control method for fusion of cellular network and wireless local area network

The invention discloses an access control method for fusion of a cellular network and a wireless local area network. The method is characterized in that a calculation method of an access domain is given by distinguishing the difference among physical layer data rates of users and adopting a segmental access strategy under the consideration of a business model, a service model and a mobile model, so that users with low data rates in the wireless local area network access the cellular network possibly, users with high data rates access the wireless local area network possibly, the dragging effects of the user with low data rates are relieved, the service quality of the user is ensured, and the system throughput is increased.