Question

Which of the following channel in USDC is used to send important control or specialized traffic data between the base station and mobile units?

(a) DTC

(b) CVDCC

(c) SACCH

(d) FACCH

I have been asked this question in an interview for internship.

My question comes from United States Digital Cellular (IS-54 and IS-136) in division Wireless Systems and Standards of Wireless/Mobile

Answer 1

The correct answer is (d) FACCH

To explain I would say: FACCH (fast associated control channel) is used to send important control or specialized traffic data between the base station and mobile units. The FACCH data, when transmitted, takes the place of user information data within a frame.