Hello friend,
There is no definite value for this coverage area. In a wireless communication system, a signal with a higher frequency is more likely to penetrate obstacles than a signal with a lower frequency. The lower the frequency, the longer the wavelength, and the stronger the radiation capability. The weaker the penetration capability, the smaller the signal loss attenuation, and the longer the transmission distance.
The transmit power of outdoor Wi-Fi does not exceed 30 dBm and the coverage is within 500 m. Therefore, outdoor Wi-Fi is used.
This feature is used for user access within a certain range, especially in outdoor high-density scenarios, such as school playgrounds and pedestrian streets.
Indoor high-density coverage
5G is more suitable for large-scale outdoor coverage, such as scenic spots and cities. Outdoor macro base stations have obvious advantages in coverage and roaming effect. Therefore, drones, drones, and loT (such as smart street lamps) in smart cities are major 5G applications.
The claimed high-density coverage of 5G is 1 million access terminals per square kilometer. In other words, one access terminal is used per square meter.
However, 5G cannot support at least two to three mobile terminals in normal office areas, at least two mobile terminals in school dormitories, and each seat in stadium stands is about 0.5 square meters.
Due to its flexibility, directional antennas can be used to cover specific areas, or high-performance APs or three-radio APs can be selected based on the number of connected users. By controlling the transmit power of APs, the coverage area can be narrowed. In this way, two to three concurrent terminals can be connected per square meter. The OFDMA and MU-MIMO technologies of Wi-Fi 6 increase the concurrency capacity by four times compared with Wi-Fi 5.
Take Huawei Wi-Fi 6 AP7060DN as an example. In an office scenario, 200 concurrent terminals (bandwidth meets office Internet access requirements) can be deployed. The coverage radius is 5 meters (about 75 square meters), and there are three concurrent terminals per square meter.
Hope to help you!
