fort would prolong the initial network entry/re-entry and handover, and may involve a great number of unsuccessful trials. On successful acquisition of system timing and cell identification, the MS attempts to detect and decode the system configuration information. This information is carried via the Superframe Headers (SFH) in IEEE 802.16m. The superframe headers, comprising Primary and Secondary Superframe Headers (P-SFH and S-SFH), are control elements that are periodically (while a large part of this information remains unchanged over a long period of time, some parts may change more frequently) broadcast using a robust and reliable transmission format to ensure the information can be correctly detected by all mobile stations in the coverage area of a base station. The correct and timely detection of the system information is essential for successful network entry/re-entry and handover. The S-SFH content is divided into three sub-packets (SP1, SP2, and SP3) where sub-packets carry essential information for various system processes such as initial network entry, network re-entry, Idle-State operation, etc., according to their respective timing sensitivity. The S-SFH SP1 and SP2 carry the 24- bit Operator ID and 24 least significant bits of the BS-ID. Once the system parameters are successfully acquired, the cell selection can be made by taking certain considerations into account. For example, the mobile station may have a preference in selecting a specific type of the base station (e.g., a femto-cell in indoor environment) even though other types of base stations may be available, or the MS may not be authorized to access a group of base stations despite the fact that their received RF signal strength might be good. The MS may or may not be femto-aware. If the MS is not femto-aware or is using an older version of air interface protocols, the legacy network entry/re-entry or handover procedures are utilized. Femto base stations are distinguished from macro base stations by the use of different secondary preambl