Hua An Ruicheng: Indoor Wireless AP Coverage Solution

Indoor wireless AP coverage scheme

The wireless network makes people's online life more convenient. In the company, at home, you can hold a laptop computer. You can walk anywhere in the smart building. Downloading data and printing documents anytime, anywhere are no longer the plot of the film. APEC was held in Shanghai. During the conference, some large hotels and hotels have already implemented wireless LAN.

solution

There are two solutions in general: One is building coverage, one AP (Access Point) is placed in the center of the corridor to cover the entire floor, and the other is an out-building coverage scheme, which is placed on one side of the building. 1 AP, increase the outdoor antenna, covering the entire building.

Indoor wireless AP coverage scheme:

Due to the special application of wireless networks, it is generally necessary to carefully test the on-site environment before the implementation, such as the thickness of the wall, the layout of the room, and whether there is outside interference. The space for general office buildings is very large, and they are separated by partitions in the lobby. Therefore, all APs are covered with 1 AP (since the investment is saved and the cabling is reduced, 1 AP is used, which can be determined according to the specific situation. In a room with large space, you can also use two APs to use a bridge connection). Pictured

Project implementation

Because the wireless AP plays the role of a hub in the wireless network, it is actually the base station of the wireless network signal transmission. Therefore, the installation location of the wireless AP must be selected so as not to affect the transmission stability of the entire wireless network signal. Considering that wireless communication signals are transmitted in a straight line direction, if there are obstacles in the transmission process, the strength of the wireless communication signal will be weakened, especially when a metal obstacle is encountered, the attenuation of the wireless signal is reduced. It is even greater.

To avoid the wireless signal being interfered by foreign obstacles, you can install it as high as possible when installing the wireless AP. Since the wireless AP's signal coverage is a circular area, in order to ensure that each connected wireless station can effectively receive the communication signal, you should preferably place the wireless AP at the center of all workstations.

For example, wireless APs can be placed in the center of a room or room, and then each workstation can be placed around the wireless AP. This ensures that each workstation in the room can access the wireless network at a high speed.

Note: We can effectively connect multiple wireless APs to build a wireless roaming network so that users can freely roam throughout the entire network. However, when visitors move from one sub-network to another sub-network, the distance between the visitor and the original wireless AP will be farther and farther, so that the wireless Internet signal will become weaker and weaker, and the Internet connection speed is also high. Slower and slower until the signal connection with the original network is interrupted.

If there is a small overlap between the coverage area of ​​the wireless AP of another subnet and the coverage area of ​​the wireless AP of the original network, then the visitor will automatically enter the moment it is about to disconnect from the original network. The new subnet covers the area, which ensures that visitors stay online while roaming between different networks without discovering disconnected connections.

Therefore, when establishing a wireless roaming network, in order to ensure that the wireless network has sufficient bandwidth, it is necessary to cross-cover a small amount of coverage of each wireless signal coverage area generated by each wireless AP to ensure seamless connection between each wireless sub-network. .

Why use wireless AP

The reason for using a wireless AP is as follows: If a wired network is used, because the building does not originally reserve trunking, holes must be made in the wall, which will destroy the interior decoration of the room, and most importantly, many times in the building to be adjusted. This will waste an investment and delay time; if wireless APs are used in the wireless network, the wiring will be difficult and the installation will be very convenient.