OFDM Modulation
OFDM modulation.
Description
The OFDM Modulation block performs OFDM modulation of the input array depending on the input signal configuration in the block parameters.
Ports
Input
#
PDSCHGrid
—
input signal as a complex matrix
matrix
Details
The input signal returned as a complex matrix.
| Data types |
|
| Complex numbers support |
Yes |
Output
#
txWaveform
—
modulated output signal as a complex matrix
matrix
Details
Modulated output signal returned as a complex matrix.
| Data types |
|
| Complex numbers support |
Yes |
Parameters
Carrier
#
NCellID —
physical layer cell identifier
Real number
Details
A physical layer cell identifier specified as an integer from 0 to 1007.
| Default value |
|
| Program usage name |
|
| Tunable |
No |
| Evaluatable |
Yes |
#
NSizeGrid —
number of resource blocks in the operator’s resource grid
Real number
Details
The number of resource blocks in the operator’s resource grid, specified as an integer from 1 to 275.
The by default value of 52 corresponds to the maximum number of RBSs for a 10 MHz carrier and a 15 kHz SCS.
| Default value |
|
| Program usage name |
|
| Tunable |
No |
| Evaluatable |
Yes |
#
Subcarrier spacing (kHz) —
subcarrier spacing in kHz
15 | 30 | 60 | 120
Details
Subcarrier spacing, in kHz, for all channels and carrier reference signals. Specified as 15, 30, 60 or 120.
| Values |
|
| Default value |
|
| Program usage name |
|
| Tunable |
No |
| Evaluatable |
No |
#
CyclicPrefix —
cyclic prefix length
Normal | Extended
Details
The length of the cyclic prefix. Options to choose from:
-
Normal- Use this value to specify a normal cyclic prefix. This parameter corresponds to 14 OFDM characters in a slot. -
Extended- use this value to specify an extended cyclic prefix. This parameter corresponds to 12 OFDM characters in the slot. For the numbering specified in section 4.2 of TS 38.211, the extended cyclic prefix length applies only to the 60 kHz subcarrier interval.
| Values |
|
| Default value |
|
| Program usage name |
|
| Tunable |
No |
| Evaluatable |
No |
PDSCH
#
Number of PDSCH transmission antennas —
number of antennas for PDSCH channel signal transmission
1 | 2 | 4 | 8 | 16 | 32 | 64 | 128
Details
The number of antennas used to carry the PDSCH (Physical Downlink Shared Channel) channel signal in the 5G NR standard.
| Values |
|
| Default value |
|
| Program usage name |
|
| Tunable |
No |
| Evaluatable |
No |