FAQ-How Many Types of Target Coverage Areas Are There on WLAN Networks? What Are Field Strength Requirements in These Areas

Publication Date:  2015-06-19 Views:  138 Downloads:  0
Issue Description
How Many Types of Target Coverage Areas Are There on WLAN Networks? What Are Field Strength Requirements in These Areas?
Solution
WLAN networks involve the following target coverage areas:

    Major coverage areas: places where many users need to connect to the Internet, such as dormitories, libraries, classrooms, hotel lobbies and guest rooms, meeting rooms, offices, and exhibition halls.

    Minor coverage areas: places where few users need to connect to the Internet, such as bathrooms, stairways, lifts, corridors, and kitchens.

    Special coverage areas: special areas where users allow or prohibit WLAN access.

Depending on WLAN access requirements in the preceding areas, various field strengths must meet the following requirements:

    Hotspot field strength: The field strength in major coverage areas ranges from -40 dBm to -65 dBm. A field strength higher than -40 dBm may cause receiver overload, and a field strength lower than -65 dBm may reduce the network connection rate.

    Edge field strength: It is determined based on the receiving sensitivity and edge bandwidth. Generally, the edge field strength should be higher than -75 dBm. The network connection rate in minor areas can be lower than that in major areas.

    Interference field strength: The co-channel interference strength in an area cannot exceed -80 dBm.

    Leakage field strength: The leakage field strength 10 m away from a building cannot exceed -90 dBm.


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