Engee documentation

DCI Decode

Decoding of downlink control information (DCI).

blockType: DCIDecode

Path in the library:

/5G/DCI Decode

Description

Block DCI Decode Decodes the input program bits of PDCCHBits in accordance with sections 7.3.4, 7.3.3 and 7.3.2 of the TS 38.212 standard for outputting decoded DCI bits.

The processing includes polar decoding and CRC decoding.

Ports

Entrance

PDCCHBits — a sequence of bits for encoding the block
matrix

A sequence of bits to encode a block DCI Decode.

Data type: Float64

SSBInd — MIB information and parameters for the pass block:q[<br>]vector

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

Data type: Int64

Output

DCIBits — DCI pass output message:q[<br>]matrix

The decoded sequence of DCI bits.

Data type: Int64

Parameters

The main

Block Pattern — ID of the pass frequency range:q[<br>] 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.

Designation of the frequency range Frequency range

FR1: Case A',`Case B,Case C

410 MHz – 7125 MHz

FR2: Case D',`Case E

24250 MHz – 52600 MHz

Usage in program code

Block parameter

BlockPattern

Values

Case A | Case B | Case C | Case D | Case E

By default

Case B

Subcarrier spacing (kHz) — the distance between subcarriers in kHz
15 (By default) | 30 | 60 | 120

The distance between subcarriers in kHz for all channels and carrier reference signals.

The values to select are 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 the minimum channel bandwidth for the NR band in MHz
5 (By default) | 10 | 40

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

Usage in program code

Block parameter

MainChannelBW

Values

5 | 10 | 40

By default

5

References

  1. 3GPP TS 38.212. "NR; Multiplexing and channel coding." 3rd Generation Partnership Project; Technical Specification Group Radio Access Network.

  2. Glossary: Standard 5G