PDSCH DM-RS

Channel assessment using PDSCH DM-RS.

pdsch dm rs

Description

Block PDSCH DM-RS performs channel and noise estimation usage of PDSCH DM-RS. Defines a grid of reference resources in PDSCH DM-RS.

Ports

Input

PDSCHInd - indices of demodulation signal resource elements
matrix

Indices of demodulation signal resource elements.

Data types: Int64.

PDSCHSym - demodulation reference signal symbols
matrix

Demodulation reference signal symbols returned as a complex matrix.

Data types: ComplexF64.

SSBInd - MIB information and parameters for the block
vector

MIB information and parameters for the block (NID structure and cell identifier ncelid) as a vector with integer values.

Data types: Int64.

ResGrid - demodulated signal as a complex matrix
matrix

Demodulated signal returned as a complex matrix.

Data types: ComplexF64.

Output

ChEst - estimated channel information
matrix

Estimated information about the channel in the form of a complex matrix.

Data types: ComplexF64.

NoisEst - estimated noise variance information
`positive scalar

Estimated noise variance information.

Data types: Float64.

Parameters

Main

Block Pattern - frequency range identifier
Case A | Case B (by default) | Case C | Case D | Case E

For the 5G standard, the frequency range used is specified in the documentation.

Frequency range designation Frequency range

Frequency range designation	Frequency range
FR1: `Case A`,`Case B`,`Case C`	410 MHz - 7125 MHz
FR2: `Case D`,`Case E`	24250 MHz - 52600 MHz

FR1: Case A,Case B,Case C

410 MHz - 7125 MHz

FR2: Case D,Case E

24250 MHz - 52600 MHz

Usage in programme code
Block parameter	`BlockPattern`
Values	`Case A` \| `Case B` \| `Case C` \| `Case D` \| `Case E`
By default	`Case B`

Subcarrier spacing (kHz) - subcarrier spacing in kHz
15(by default) | 30 | 60 | 120

Subcarrier spacing in kHz for all channels and carrier reference signals.

Selectable values: 15 or 30 for FR1, 60 or 120 for FR2.

Usage in program code
Block parameter	`SubcarrierSpacingCommon`
Values	`15` \| `30` \| `60` \| `120`
By default	`15`

Minimum channel bandwidth for the NRb (MHz) - setting of the minimum channel bandwidth for the NR range
5 MHz (By default) | 10 MHz | 40 MHz

Set the minimum channel bandwidth for the NR band.

Usage in program code
Block parameter	`MainChannelBW`
Values	`5 МГц` \| `10 МГц` \| `40 МГц`
By default	`5 МГц`

References

Glossary: Standard 5G