DoIFFT Class Reference

#include <doifft.h>

Inheritance diagram for DoIFFT:

Collaboration diagram for DoIFFT:

Public Member Functions
	DoIFFT (Config *in_config, int in_tid, Table< complex_float > &in_dl_ifft_buffer, char *in_dl_socket_buffer, Stats *in_stats_manager)
	~DoIFFT () override
EventData	Launch (size_t tag) override
Public Member Functions inherited from Doer
virtual bool	TryLaunch (moodycamel::ConcurrentQueue< EventData > &task_queue, moodycamel::ConcurrentQueue< EventData > &complete_task_queue, moodycamel::ProducerToken *worker_ptok)
virtual EventData	Launch (size_t tag, EventType event_type)

Private Attributes
Table< complex_float > &	dl_ifft_buffer_
char *	dl_socket_buffer_
DurationStat *	duration_stat_
DFTI_DESCRIPTOR_HANDLE	mkl_handle_
float *	ifft_out_
complex_float *	ifft_shift_tmp_
float	ifft_scale_factor_

Additional Inherited Members
Protected Member Functions inherited from Doer
	Doer (Config *in_config, int in_tid)
virtual	~Doer ()=default
Protected Attributes inherited from Doer
Config *	cfg_
int	tid_

Constructor & Destructor Documentation

DoIFFT()

DoIFFT::DoIFFT	(	Config *	in_config,
		int	in_tid,
		Table< complex_float > &	in_dl_ifft_buffer,
		char *	in_dl_socket_buffer,
		Stats *	in_stats_manager
	)

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~DoIFFT()

DoIFFT::~DoIFFT ( )

override

Member Function Documentation

Launch()

EventData DoIFFT::Launch ( size_t  tag )

overridevirtual

Do modulation and ifft tasks for one OFDM symbol

Parameters

tid

task thread index, used for selecting task ptok Buffers: dl_IQ_data_long Input buffer: dl_IQ_data_long Output buffer: dl_iffted_data_buffer_ Intermediate buffer: dl_ifft_buffer_ Offsets: dl_IQ_data_long_: dim1: data symbol index in the current frame * # of users + user index dim2: subcarrier index dl_ifft_buffer_: dim1: frame index * # of data symbols per frame * # of users + data symbol index * # of users + user index dim2: subcarrier index dl_iffted_data_buffer_: dim1: frame index * # of data symbols per frame + data symbol index dim2: transpose block index * block size * # of UEs + user index * block size Event offset: offset Description: for each OFDM symbol, perform modulation and then ifft perform block-wise transpose on IFFT outputs and store results in dl_iffted_data_buffer_ add an event to the message queue to infrom main thread the completion of this task

Reimplemented from Doer.

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Member Data Documentation

dl_ifft_buffer_

Table<complex_float>& DoIFFT::dl_ifft_buffer_

private

dl_socket_buffer_

char* DoIFFT::dl_socket_buffer_

private

duration_stat_

DurationStat* DoIFFT::duration_stat_

private

ifft_out_

float* DoIFFT::ifft_out_

private

ifft_scale_factor_

float DoIFFT::ifft_scale_factor_

private

ifft_shift_tmp_

complex_float* DoIFFT::ifft_shift_tmp_

private

mkl_handle_

DFTI_DESCRIPTOR_HANDLE DoIFFT::mkl_handle_

private

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The documentation for this class was generated from the following files:

• src/agora/doifft.h
• src/agora/doifft.cc