WiMAX Network Entry and Initialization, part 2.

The network entry process can be separated into a few phases. Within each phase, particular MAC management messages  are exchanged among Base Station (BS) and Subscriber Station. On the establishment of process, the SS scans individual DL channels searching in favor of the DL-MAP and DCD messages broadcasted by the BS.

Using these messages, the SS get synchronize with the BS and obtains DL paremeters. As successfully synchronized, the SS wait for the UL-MAP and UCD messages to acquire UL parameters.