t paging offset in the same paging cycle, SO that the network avoids unnecessary paging of the MS in the next paging offset. An Idle State MS (while in paging listening interval) wakes up at its primary paging offset and looks for primary PGID CHAPTER 4 IEEE 802.16m System Operation and State Diagrams PAGING GROUP PAGING GROUP K 3-SECTOR CELL PAGING GROUP J PAGING GROUP M FIGURE 4-9 Example of overlapping paging groups [6,7] information. If the MS does not detect the primary PGID, it will wake up during its secondary paging offset in the same paging cycle. If the MS can find neither primary nor secondary PGIDs, it will perform a location update. The paging message contains identification of the mobile stations to be notified of pending traffic or location update. The MS determines the start of the paging listening interval based on the paging cycle and paging offset. During the paging available interval, the MS monitors the superframe header and if there is an indication of any change in system configuration information, the MS will acquire the latest system information at the next instance of superframe header transmission (i.e., next superframe header). To provide location privacy, the paging controller may assign temporary identifiers to uniquely identify the mobile stations in the idle mode in a particular paging group. The temporary identifiers remain valid as long as the MS stays in the same paging group. The MS in the primary paging group monitors the paging message transmitted at the 4.1 IEEE 802. 16m mobile station state diagrams Access State Paging Available Mode Initialization State/ Connected State Power ON/OFF Paging Connected Unavailable State Failed Operation Path Normal Operation Path FIGURE 4-10 Idle state procedures [3] associated paging offset. If the MS leaves the primary paging group and enters a secondary paging group, the MS will monitor the paging messages at the paging offset associated with the secondary paging group. Within a paging listening interval, the frame that contains the paging