Engee documentation

DL-SCH Decode

Decoding of the common downlink DL-SCH.

blockType: DLSCHDecode

Path in the library:

/5G/DL-SCH Decode

Description

Block DL-SCH Decode performs decoding of the DL-SCH common downlink signal, which was encoded in accordance with the protocol [1]. At the output of the block, the logarithmic likelihood ratio (LLR) values corresponding to the received codewords are obtained.

Ports

Entrance

DCIBits — input message DCI
matrix

A sequence of DCI bits.

Data type: Int64

PDSCHBits — a sequence of bits for encoding the PDSCH pass block:q[<br>] vector

A sequence of bits for encoding the PDSCH block as a vector.

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

SIB1 is the sequence of decoded pass bits:q[<br>] vector

The output sequence of decoded bits.

Data type: Int8

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

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