INITIAL STEPS INVOLVED WHEN A MOBILE IS SWITCHED ON
·When a mobile station is first switched on it is necessary to read the BCCH in order to determine its orientation within the network.
·The mobile must first synchronize in frequency and then in time.
·The FCCH, SCH and BCCH are all transmitted on the same carrier frequency which has a higher power density than any of the other channels in a cell because steps are taken to ensure that it is transmitted information at all times.
·The mobile scans around the available frequencies, picks the strongest and then selects the FCCH.