HS-PDSCH Frame Structure
In the figure above, M is the number of bits per modulation symbol, where M=2 for QPSK, M=4 for 16QAM, and M=6 for 64QAM. Modulation selection is a feature provided with Option FFP.
|
Slot format |
Channel Bit Rate (kbps) |
Channel Symbol Rate (ksps) |
SF (fixed) |
Bits/ HS-DSCH subframe |
Bits/ Slot |
Ndata |
|---|---|---|---|---|---|---|
|
0(QPSK) |
480 |
240 |
16 |
960 |
320 |
320 |
|
1(16QAM) |
960 |
240 |
16 |
1920 |
640 |
640 |
|
2(64QAM) |
1440 |
240 |
16 |
2880 |
960 |
960 |
Without Option FFP, the HS-PDSCH uses only 16QAM modulation.