User's Manual

Mobile WiMAX Indoor RAS SPI-2210 System Description

CHAPTER 4. Message Flow

4.1 Call Processing Message Flow

4.1.1 Initial Access

The following is the procedure to set the Provisioned Service Flow (SF) of the network-

initiated Dynamic Service Add (DSA) mode in the process of the initial network entry.

An MS periodically receives Downlink Channel Descriptor (DCD), Downlink-MAP (DL-

MAP), Uplink Channel Descriptor (UCD) and Uplink-MAP (UL-MAP) messages from the

RAS in the initial access, acquires the downlink channel synchronization and the uplink

parameter and sets the Provisioned SF connection.

The ACR supports PMIP and simple IP methods when allocating an IP address to the MS.

When the PMIP method is used, the ACR performs the DHCP proxy function. When the

simple IP method is used, the ACR performs the DHCP relay agent function.