A set of adjacent frequencies lying within a definite range.
Bluetooth
A short-range wireless cable replacement technology. Bluetooth is the brandname for the IEEE 802.15 personal-area network standard. Bluetooth also uses the 2.4-GHz frequency range.
BSS
Basic Service Set. A MAC layer grouping of wireless devices that communicate with each other. A BSS is a single radio cell formed by a single base station or access point.