The Pacific Digital Cellular (PDC) TDMA system uses a 42.0 kbps data rate to support 3 uses per frame. Each user occupies 2 of the 6 time slots per frame.

(a) What is the raw data rate provided for each user?

(b) If the frame efficiency is 80% and the frame duration is 6.667 ms, determine the number of information bits sent to each user per frame.

(c) If half-rate speech coding is used, 6 users per frame are accommodated. Determine the number of information bits provided for each user per frame.

(d) What is the information data rate per user in half-rate PDC?