Engee documentation

PDSCH Extraction Equalization

PDSCH character extraction and alignment.

blockType: PDSCHExtractionEqualization

Path in the library:

/5G/PDSCH Extraction Equalization

Description

The PDSCH Extraction Equalization block performs PDSCH character extraction and alignment.

The block performs the following actions:

  • Extracts PDSCH-related symbols of physical channel resources from the adopted ResGrid using indices.

  • Uses the estimated channel information ChEst and noise variance NoisEst to perform Minimum Mean Square Error (MMSE) alignment and returns the aligned PDSCH symbols as a complex matrix REs.

Ports

Input

DCIBits - DCI input message
matrix

DCI bit sequence.

Data types: Int64.

ChEst - channel estimation information in the form of a complex matrix
matrix

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

Data types: ComplexF64.

NoiEst - estimated noise variance information
`positive scalar

Estimated information about the noise variance.

Data types: Float64.

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

REs - aligned PDSCH symbols as a complex matrix
matrix

Aligned PDSCH symbols as a complex matrix.

Data types: ComplexF64.

Parameters

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

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

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