The scope of this document is to define the Packet Data Specification of the
wideband air interface (WAI). The wideband air interface called Uw is the interface
between the fixed network equipment (FNE) and the subscriber units, or directly
between subscriber units in a wideband system. The general wideband system
model is shown in Figure 1 and illustrates the Radio to FNE Mode of operation. A
Vehicular Repeater (VR) could additionally act as a relay between FS and MR when
coverage limitations require the use of this local coverage area extension.