Repeat Audio

Performance:

HSCSD Performance:

Based on timeslot bundling, HSCSD can provide speeds up to 57.6 kbit/s. However, as illustrated in the table below, its performance depends on the number of timeslots and the channel type. Note that commercial implementations of HSCSD barely exceed a speed of 38.4 kbit/s.

Data Rate

Required number of
Fullrate TCH’s with 4.8 kbit/s

Required number of
Fullrate TCH’s with 9.6 kbit/s

Required number of
Fullrate TCH’s with 14.4 kbit/s

4.8 kbit/s

1

-/-

-/-

9.6 kbit/s

2

1

-/-

14.4 kbit/s

3

-/-

1

19.2 kbit/s

4

2

-/-

28.8 kbit/s

-/-

3

2

38.4 kbit/s

-/-

4

-/-

43.2 kbit/s

-/-

-/-

3

57.6 kbit/s

-/-

-/-

4