FIELD: physics.
SUBSTANCE: invention relates to multiband communication. To this end, in a process in which an AP device authenticates a STA device, the AP device sends a target packet to the STA device. AP device includes a plurality of APs, and the plurality of APs operate in different frequency bands. Target packet includes a plurality of multi-band elements, the plurality of multi-band elements uniquely correspond to the plurality of APs, each of the plurality of multi-band elements includes frequency band information of the corresponding AP, and the plurality of multiband elements instructs the STA device to perform association and key acquisition using the plurality of APs.
EFFECT: possibility of station device (STA) to quickly switch between multiple access points (AP).
7 cl, 19 dwg, 2 tbl
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