GSM dedicated control channels carry data used during connection
establishment and for handover decisions. The GSM stand-alone dedicated control
channel (SDCCH) is used for signaling between base station and
mobile station during call setup. The GSM slow associated control
channel (SACCH) carries measurement reports required for handover decisions. The
GSM fast associated control channel (FACCH) has the same purpose
as the stand-alone dedicated control channel, but borrows capacity from
a traffic channel rather than having capacity specifically allocated by
the base station.
Other topics in our resources on GSM related to Dedicated Control Channels include: