PDU Trains
PDU trains represent the interface between the MAC and the PHY. They consist of a sequence of transport channels. Each of the six PDU trains listed in Table 7.3 is shortly described in the following.
Broadcast PDU Train
The format of the Broadcast PDU train depends on the number of sectors the access point uses. In the case of multiple sectors, each BCH is transmitted using an individual Broadcast PDU train. Otherwise, the PDU train consists of BCH, FCH, and ACH. Both these cases are illustrated in Figure 7.6.
Figure 7.6. Possible Broadcast PDU trains.
FCH-and-ACH PDU Train
FCH-and-ACH PDU train is used only when the access point uses ...
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