問題文
An engineer is listing the features that Wi-Fi 6 added for crowded offices, and a colleague asks what BSS coloring contributes to such a site. Which statement describes what BSS coloring does?
選択肢
- It divides one channel into many narrower subchannels so that a single transmission can carry data addressed to several separate endpoints at one and the same time.
- It agrees on scheduled waking times with each endpoint so that the endpoint can stay idle and save power between the frames that are addressed to it.
- It labels each basic service set with its own identifier so that radios can recognize and disregard the frames that belong to a different set.
- It raises the number of states that each symbol can take so that one transmission carries more bits than the previous standard allowed.