• cgo,

    There are multiple AP's on the same channel covering a large area, but when a frame passes from the controller to a radio, it only sends it out one AP, not all of them.

    When a client STA transmits, it cannot be heard by all of the AP's. So, if you are at one end of a building and I am at the other, even though we are on the same channel our transmitters aren't powerful enough for us to hear each other.

    Just like cell planning of today, many client devices are on the same channel, but they are in different cells so they can't hear each other.


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