User's Manual

Mobile WiMAX RAS SPI-2L10 System Description

4-1

CHAPTER 4. Message Flow

4.1 Call Processing Message Flow

4.1.1 Initial Entry

Below is the procedure that sets up a provisioned Service Flow (SF) in the network-

initiated Dynamic Service Add (DSA) mode during the initial network entry procedure.

In the initial entry procedure, the MS periodically receives Downlink Channel Descriptor

(DCD), Downlink-MAP (DL-MAP), Uplink Channel Descriptor (UCD), and Uplink-MAP

(UL-MAP) messages from the RAS, obtains the downlink channel synchronization and

uplink parameters, and sets a provisioned SF connection.