Symbol Section¶

class SymbolSection(num_repetitions=1, pattern=None, sample_offset=0, wave=None)[source]¶

Representation of a section of symbols within an OFDM-grid’s time-domain.

Parameters:

num_repetitions (int) – Number of times this section is repeated in time-domain.
pattern (list[int] | None) – Resource pattern within this symbol section.
sample_offset (int) – Offset in samples to the start of the section.
wave (OrthogonalWaveform | None) – Waveform this section is associated with. Defaults to None.

classmethod Deserialize(process)[source]¶

Deserialize an object’s state.

Objects cannot be deserialized directly, instead a Factory must be instructed to carry out the deserialization process.

Parameters:: process (DeserializationProcess) – The current stage of the deserialization process. This object is generated by the Factory and provides an interface to deserialization methods supporting multiple backends.
Return type:: SymbolSection
Returns:: The deserialized object.

num_samples(bandwidth, oversampling_factor)[source]¶

Number of samples within this OFDM time-section.

Parameters:

bandwidth (float) – Bandwidth of the OFDM waveform.
oversampling_factor (int) – Oversampling factor of resulting time-domain signal.

Return type:

int

Returns: Number of samples within this section.

pick_samples(signal, bandwidth, oversampling_factor)[source]¶

Pick this section’s samples from the time-domain signal.

Parameters:

signal (ndarray[tuple[int, ...], dtype[complex128]]) – Time-domain signal to be picked from. Numpy vector of size num_samples.
bandwidth (float) – Bandwidth of the OFDM waveform.
oversampling_factor (int) – Oversampling factor of resulting time-domain signal.

Return type:

ndarray

Returns: Time-domain signal with the section’s samples picked.

place_samples(signal, bandwidth, oversampling_factor)[source]¶

Place this section’s samples into the time-domain signal.

Parameters:

signal (ndarray) – Time-domain signal to be placed. Numpy vector of size num_samples.
bandwidth (float) – Bandwidth of the OFDM waveform.
oversampling_factor (int) – Oversampling factor of resulting time-domain signal.

Return type:

ndarray

Returns: Time-domain signal with the section’s samples placed.

serialize(process)[source]¶

Serialize this object’s state.

Objects cannot be serialized directly, instead a Factory must be instructed to carry out the serialization process.

Parameters:: process (SerializationProcess) – The current stage of the serialization process. This object is generated by the Factory and provides an interface to serialization methods supporting multiple backends.
Return type:: None

property num_references: int[source]¶: Number of data symbols this section can modulate.

property num_subcarriers: int[source]¶: Number of subcarriers this section requires.

property num_symbols: int[source]¶: Number of data symbols this section can modulate.

property num_words: int[source]¶: Number of OFDM symbols, i.e. words of subcarrier symbols this section can modulate.