| http://www.w3.org/ns/prov#value | - Embodiments of the present invention will now be described, by way of example with reference to the accompanying drawings, in which: FIG. 1 is a schematic diagram of a wireless local area network; FIG. 2 is a schematic diagram of a access point FIG. 3 is a schematic diagram of a mobile unit; FIG. 4 shows the wireless local area network of FIG. 1 deployed in a room; FIG. 5 shows a relationship betw
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