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Downlink Transport Channels

5G NR broadcast channel (BCH) and downlink shared channel (DL-SCH)

Use transport channels to encode and transmit transport blocks with specific characteristics. 5G Toolbox™ supports the following downlink transport channels.

Transport Channel	Description
BCH — Broadcast channel	The BCH encodes system information required by the user equipment (UE) to access the network. The encoded information is mapped to a physical broadcast channel (PBCH). For an overview of the available PBCH functionalities, see Downlink Physical Channels.
DL-SCH — Downlink shared channel	The DL-SCH encodes user data and paging information. The encoded data is mapped to a physical downlink shared channel (PDSCH). For an overview of the available PDSCH functionalities, see Downlink Physical Channels.

Functions

Broadcast Channel

`nrBCH`	Broadcast channel (BCH) encoding
`nrBCHDecode`	Broadcast channel (BCH) decoding

Downlink Shared Channel

`nrDLSCH`	Apply DL-SCH encoder processing chain (Since R2019a)
`nrDLSCHDecoder`	Apply DL-SCH decoder processing chain (Since R2019a)
`nrDLSCHInfo`	Get downlink shared channel (DL-SCH) information

Topics

Model 5G NR Transport Channels with HARQ
Use DL-SCH encoder and decoder objects to model transport channels with multiple HARQ processes.
LDPC Processing for DL-SCH and UL-SCH
Process 5G NR DL-SCH and UL-SCH transport blocks using LDPC coding.