What is network Entry procedure in WIMAX -interview question?

Go to the Section of Network entry and Initialization of wimax std 802.16d (page 167, section , 6.3.9)

The phases are :-

1. It scans the download channel and established synchronization with the BS (Base station)
2. Obtain the transmit parameter (from UCD message)
3. Perform ranging.
4. Negotiate basic capabilities.
5. Authorize SS and performs key exchange for privacy.
6. Perform registration.
7. Established IP connectivity.
8. Established TOD (time of Day)
9. Transfer operational parameters.
10. Setup connection .

The stages of 7, 8 and 9 are optional for SS . These phases are performed if the SS has indicated in the REG-REQ message that it is a managed SS.