Brief Analysis of Distributed AP and Packaged AP

January 25, 2023

1. Overview

Wireless access point, namely wireless AP (Access Point), is a wireless switch for wireless networks, and an access point for mobile computer users to access wired networks. It is mainly used in broadband homes, buildings and parks, with typical distances ranging from tens of meters to hundreds of meters. According to different situations, there are many types of AP. Today, let’s briefly introduce distributed AP and distributed AP.

2. Introduction to distributed AP and deployment scenarios

The distributed AP uses the RF feed line to pull the antenna far away, bypassing the attenuation of the wireless signal caused by the wall by letting the antenna enter the room directly, reducing the multipath effect caused by the complex environment, and improving the wireless signal quality in the room. Generally, there are two modes of indoor distributed and intelligent distributed deployment.

The indoor distributed deployment scheme has serious attenuation of signal transmission in the RF line, and the indoor distributed AP has low signal strength and insufficient performance. The intelligent distributed AP improves the indoor distributed AP, uses the ultra-flexible feeder to replace the RF feeder, and integrates the combiner and coupler into the AP, reducing the difficulty of deployment. The intelligent deployment mode is specially used to solve the complex physical environment, high performance requirements, and uniform and dense environment like dormitory. The intelligent type AP is installed in the center of the corridor, and the wireless signal is transmitted to the room through the feeder, thus avoiding the impact of the wall on the signal. The intelligent split deployment method effectively solves the dormitory scenarios that cannot be solved by the placement deployment method.

3. Introduction to pay-in AP and deployment scenario

The placement type AP is covered by the equipment’s own antenna, and the AP is directly placed in the scene to be covered. Generally, the installation method of wall-mounted and ceiling mounted is adopted, and the placement type AP is installed in the middle of the coverage area. The deployable AP is suitable for deployment in a relatively open room. In an open room with large business capacity, such as classrooms, laboratories, academic lecture halls and auditoriums, the deployment mode of the deployable AP is selected, which is beneficial to network troubleshooting and network optimization in the later stage.

This scheme is suitable for the case where the wall is made of hollow bricks or aerated concrete and other low-density materials. For the case where the wall environment is relatively complex, such as the high-density solid wall, or the room has a bathroom, the signal has been seriously attenuated after passing through the wall, and the signal coverage is uneven, which often leads to problems such as slow download speed, large network delay, and even frequent disconnection. For example, installing an AP in the dormitory corridor will cause the signal attenuation in the room to be too large, which will cause the signal outside the room to be very strong, while the signal inside the room is weak, which cannot meet the user’s normal internet access.

4. Ruijie all-optical wireless starry sky solution

Ruijie all-optical wireless starry sky solution, based on the strategy of “optical advance and copper retreat”, redefines the star host, planetary AP (micro AP) and satellite module (photoelectric conversion module). It uses innovative photoelectric hybrid cable to supply power to the AP point-to-point, and connects the last 100 meters of the optical fiber link, so as to build a wireless network based on the present and facing the future for users.

All-optical wireless starry sky scheme architecture

1. Deployment mode

The star host is connected to the cable management box through the optoelectronic hybrid pigtail.

The photoelectric hybrid cable and pigtail are connected in the cable management box (two copper cables are crimped and the optical fiber is fused), and the AP supplies power and transmits data through the photoelectric hybrid cable.

Star hosts are all deployed in the machine room of the building to manage and power all micro APs.

2. Power supply mode

According to the AP interface, Phoenix power supply, RJ45 interface PoE power supply and photoelectric converter power supply can be flexibly selected.

Star host provides point-to-point power supply interface for AP, and negotiates power supply through PoF.

Each star host can supply power to 24 APs at most, which saves floor equipment, reduces the number of weak current machine rooms managed, realizes floor passivity, and solves the problem of safe power use.