channel with the access network in step 314 starts the registration timer in step 316 and monitors the user input device for new broadcast channel selections while the registration timer is active in step 318 if a new broadcast channel is selected before the registration timer expires the subscriber station processor loops back to step 306 to restart the guard timer if the broadcast channel remains selected when the registration timer expires the subscriber station processor loops back to step 314 to reregister the broadcast channel with the access network and step 316 to restart the registration timer the sequence of steps described above for the registration algorithm is by way of example and not by way of limitation those skilled in the art will appreciate that certain steps can be performed in any order or carried out in parallel in an actual implementation moreover one or more of the steps may be omitted or combined with other methods and processes known in the art 0036 fig4 is a timing diagram illustrating an exemplary registration scenario between a subscriber station and an access network using the registration algorithm described in connection with fig3 the timing diagram includes a horizontal axis for u201c time u201d and a vertical axis showing the u201c carrier frequency u201d assignments for the physical channels below and the state of the various timers above for the purposes of illustration the paging channel for point to point communications will be represented as f 3 two physical channels i e f bsch.