Method and wireless controller AC for implementing wireless projection in wireless local area network

Abstract

The embodiments of the invention provide a method and a wireless controller for implementing wireless projection in a wireless local area network. The method comprises the steps of: acquiring a firstmaximum signal intensity; establishing a first corresponding relationship between a first wireless terminal and a corresponding first AP according to the first maximum signal intensity; acquiring a second maximum signal intensity; establishing a second corresponding relationship between a first projection device and a corresponding second AP according to the second maximum signal intensity; determining a third corresponding relationship between the first wireless terminal and the first projection device according to the first corresponding relationship and the second corresponding relationship; when the first wireless terminal initiates a projection service request, sending first projection device information corresponding to the first wireless terminal to an AP associated with the first wireless terminal according to the third corresponding relationship. The wireless projection technology can be applied to a certain scale of wireless network environment.

Description

technical field [0001] The invention relates to the field of data communication, in particular to a method for realizing wireless screen projection in a wireless local area network and a wireless controller AC. Background technique [0002] Wireless audio and video transmission, in simple terms, is to share audio and video signals with other devices through a certain transmission protocol. For example, the screen displayed by the mobile phone can be wirelessly projected on a large-screen TV. At present, there are mainly three types of existing technologies: DLNA, AirPlay, and Miracast. These three have relatively large differences in functional applications, but they have common ideas in establishing connections before devices. The technical implementation of this paper mainly revolves around the connection between devices. The content of the connection part is established, so it is described here for AirPlay. [0003] Bonjour is the name of the protocol that automatically ...

AI Technical Summary

Problems solved by technology

The disadvantage of this solution is that when Wi-Fi is usually provided with the same network service by many wireless access point AP devices at the same time, it cannot ensure that the user terminal mistakenly connects to the signal next door, so that the service in this room cannot be used at any time. On this basis, there is a Solution, different AP devices provide networks with different names. For example, the Wi-Fi network in room 301 is called 301. This solution is very difficult to apply in scenarios with high personnel mobility, management and maintenance are also very difficult, and roaming also has problems.

[0009] Solution 2: Some screen-casting device manufacturers let the TV emit a specific named Wi-Fi signal so that the user terminal can select a specific device to connect and use the only screen-casting service. In this way, when connecting to the specified Wi-Fi, only the unique Wi-Fi signal can be found. Once you leave the room or change the meeting room, you need to switch between different networks, which is very cumbersome. At the same time, when there are too many Wi-Fi signals, it is impossible to do unified control, which is prone to poor wireless experience and wireless security risks.

[0010] In summary, the above solutions may have problems such as cumbersome use, user misoperation, and service errors.

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