PDCCH Extraction Equalization

PDCCH character extraction and alignment.

pdcch extraction equalization

Description

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

The block performs the following actions:

Extracts the elements of PDCCH-related physical channel resources from the accepted ResGrid using PDCCHInd indices.
Uses the estimated channel information ChEst and noise variance NoisEst to perform Minimum Mean Square Error (MMSE) alignment and returns the aligned PDCCH symbols as a complex matrix.

ChEst - channel estimation 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.

PDCCHInd - indexes for a particular aggregation level
matrix

Indexes for a certain aggregation level in the form of a vector with real values.

Data types: Int64, UInt64.

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 input signal
matrix

Demodulated input signal: a grid of physical channel resource elements in the form of a complex matrix.

Data types: ComplexF64.

PDCCHREs - aligned PDCCH characters
matrix

Aligned PDCCH symbols as a complex matrix.

Data types: ComplexF64.

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.

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

Set the minimum channel bandwidth for the NR band in MHz.