What is FACH (Forward Access Channel)?

FACH conveys control data to UEs in a cell. Makes up the RACH/FACH pair. Forward Access channel conveys information to the UEs that are registered on the framework. There might be more than one FACH per cell as they may convey packet information. A UMTS transport channel that forms the downlink half of a transport channel pair known as the Random Access Channel, Forward Access Channel combination.