TransportBlock

class sionna.phy.utils.TransportBlock(*args: Any, precision: Literal['single', 'double'] | None = None, device: str | None = None, **kwargs: Any)

Bases: sionna.phy.block.Block

Class template for computing the number and size (measured in number of bits) of code blocks within a transport block, given the modulation order, coderate and the total number of coded bits of a transport block.

Used in PHYAbstraction.

Inputs:

• modulation_order – […], torch.int32. Modulation order, i.e., number of bits per symbol.

• target_coderate – […], torch.float. Target coderate.

• num_coded_bits – […], torch.float. Total number of coded bits across all codewords.

Outputs:

• cb_size – […], torch.int32. Code block (CB) size, i.e., number of information bits per code block.

• num_cb – […], torch.int32. Number of code blocks that the transport block is segmented into.

Parameters:

• args (Any)

• precision (Literal['single', 'double'] | None)

• device (str | None)

• kwargs (Any)