AP-1 is a 3×3:2 AP. STA-3 is a 3×3:3 client. What is the maximum number of spatial streams that can be
used for a downlink HT-OFDM transmission from AP-1 to STA-3?
A.
One spatial stream, because the definition of the AP indicates that it is capable of only one spatial
stream.
B.
Three spatial streams, because the definition of the client indicates that it is capable of only three
spatial streams.
C.
Two spatial streams, because the definition of the AP indicates that it is capable of only two spatial
streams.
D.
Three spatial streams, because the definition of the AP indicates that it is capable of only three spatial
streams.