15 February 2018

DCCH channel in GSM

DCCHs stands for dedicated control channels in GSM. 

The dedicated control channel comes into the picture after a call is established. The dedicated control channels are bidirectional. They have the same formats and function in the forward and the reverse links.

Refer the following link to know details of the PCH, AGCH, RACH channel, and their processing.
  • GSM Fast associated control channel ( FACCH )
  • GSM Slow associated control channel ( SACCH )
  • GSM Stand dedicated control channel ( SDCCH )