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srsRAN_4G
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Adding explicit visibility settings for the library

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master
Paul Sutton 11 years ago
parent 8c0b3f0e2a
commit 27ef1a58bc
64 changed files with 730 additions and 592 deletions
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15
CMakeLists.txt
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@ -23,13 +23,11 @@
########################################################################
# Prevent in-tree builds
########################################################################
if(${CMAKE_SOURCE_DIR} STREQUAL ${CMAKE_BINARY_DIR})
message(FATAL_ERROR "Prevented in-tree build. This is bad practice.")
endif(${CMAKE_SOURCE_DIR} STREQUAL ${CMAKE_BINARY_DIR})
########################################################################
# Project setup
########################################################################
@ -66,12 +64,23 @@ SET(CMAKE_BUILD_TYPE ${CMAKE_BUILD_TYPE} CACHE STRING "")
########################################################################
# Compiler specific setup
########################################################################
macro(ADD_CXX_COMPILER_FLAG_IF_AVAILABLE flag have)
include(CheckCXXCompilerFlag)
CHECK_CXX_COMPILER_FLAG(${flag} ${have})
if(${have})
add_definitions(${flag})
endif(${have})
endmacro(ADD_CXX_COMPILER_FLAG_IF_AVAILABLE)
IF(CMAKE_COMPILER_IS_GNUCXX)
# do something
#Any additional flags for CXX
ENDIF(CMAKE_COMPILER_IS_GNUCXX)
IF(CMAKE_COMPILER_IS_GNUCC)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Wno-format-extra-args -Winline -Wno-unused-result -Wno-format -std=c99 -D_GNU_SOURCE")
IF(NOT WIN32)
ADD_CXX_COMPILER_FLAG_IF_AVAILABLE(-fvisibility=hidden HAVE_VISIBILITY_HIDDEN)
ENDIF(NOT WIN32)
ENDIF(CMAKE_COMPILER_IS_GNUCC)
IF(MSVC)

6
graphics/include/plot.h
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@ -33,13 +33,15 @@
extern "C" {
#endif
#include "lte/config.h"
#include "plot/plot_real.h"
#include "plot/plot_scatter.h"
#include "plot/plot_complex.h"
#include "plot/plot_waterfall.h"
int plot_init();
void plot_exit();
LIBLTE_API int plot_init();
LIBLTE_API void plot_exit();
#ifdef __cplusplus
}

17
graphics/include/plot/plot_complex.h
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@ -35,6 +35,7 @@ extern "C" {
#endif
#include <stdbool.h>
#include "lte/config.h"
typedef enum {
Ip, Q, Magnitude, Phase
@ -42,15 +43,15 @@ typedef enum {
typedef void* plot_complex_t;
int plot_complex_init(plot_complex_t *h);
void plot_complex_setTitle(plot_complex_t *h, char *title);
void plot_complex_setNewData(plot_complex_t *h, _Complex float *data,
LIBLTE_API int plot_complex_init(plot_complex_t *h);
LIBLTE_API void plot_complex_setTitle(plot_complex_t *h, char *title);
LIBLTE_API void plot_complex_setNewData(plot_complex_t *h, _Complex float *data,
int num_points);
void plot_complex_setXAxisAutoScale(plot_complex_t *h, plot_complex_id_t id, bool on);
void plot_complex_setYAxisAutoScale(plot_complex_t *h, plot_complex_id_t id, bool on);
void plot_complex_setXAxisScale(plot_complex_t *h, plot_complex_id_t id, double xMin, double xMax);
void plot_complex_setYAxisScale(plot_complex_t *h, plot_complex_id_t id, double yMin, double yMax);
void plot_complex_setXAxisRange(plot_complex_t *h, double xMin, double xMax);
LIBLTE_API void plot_complex_setXAxisAutoScale(plot_complex_t *h, plot_complex_id_t id, bool on);
LIBLTE_API void plot_complex_setYAxisAutoScale(plot_complex_t *h, plot_complex_id_t id, bool on);
LIBLTE_API void plot_complex_setXAxisScale(plot_complex_t *h, plot_complex_id_t id, double xMin, double xMax);
LIBLTE_API void plot_complex_setYAxisScale(plot_complex_t *h, plot_complex_id_t id, double yMin, double yMax);
LIBLTE_API void plot_complex_setXAxisRange(plot_complex_t *h, double xMin, double xMax);
#ifdef __cplusplus
}

19
graphics/include/plot/plot_real.h
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@ -34,19 +34,20 @@ extern "C" {
#endif
#include <stdbool.h>
#include "lte/config.h"
typedef void* plot_real_t;
int plot_real_init(plot_real_t *h);
void plot_real_setTitle(plot_real_t *h, char *title);
void plot_real_setNewData(plot_real_t *h, float *data,
LIBLTE_API int plot_real_init(plot_real_t *h);
LIBLTE_API void plot_real_setTitle(plot_real_t *h, char *title);
LIBLTE_API void plot_real_setNewData(plot_real_t *h, float *data,
int num_points);
void plot_real_setXAxisAutoScale(plot_real_t *h, bool on);
void plot_real_setYAxisAutoScale(plot_real_t *h, bool on);
void plot_real_setXAxisScale(plot_real_t *h, double xMin, double xMax);
void plot_real_setYAxisScale(plot_real_t *h, double yMin, double yMax);
void plot_real_setXAxisRange(plot_real_t *h, double xMin, double xMax);
void plot_real_setLabels(plot_real_t *h, char *xLabel, char *yLabel);
LIBLTE_API void plot_real_setXAxisAutoScale(plot_real_t *h, bool on);
LIBLTE_API void plot_real_setYAxisAutoScale(plot_real_t *h, bool on);
LIBLTE_API void plot_real_setXAxisScale(plot_real_t *h, double xMin, double xMax);
LIBLTE_API void plot_real_setYAxisScale(plot_real_t *h, double yMin, double yMax);
LIBLTE_API void plot_real_setXAxisRange(plot_real_t *h, double xMin, double xMax);
LIBLTE_API void plot_real_setLabels(plot_real_t *h, char *xLabel, char *yLabel);
#ifdef __cplusplus
}

17
graphics/include/plot/plot_scatter.h
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@ -34,18 +34,19 @@ extern "C" {
#endif
#include <stdbool.h>
#include "lte/config.h"
typedef void* plot_scatter_t;
int plot_scatter_init(plot_scatter_t *h);
void plot_scatter_setTitle(plot_scatter_t *h, char *title);
void plot_scatter_setNewData(plot_scatter_t *h, _Complex float *data,
LIBLTE_API int plot_scatter_init(plot_scatter_t *h);
LIBLTE_API void plot_scatter_setTitle(plot_scatter_t *h, char *title);
LIBLTE_API void plot_scatter_setNewData(plot_scatter_t *h, _Complex float *data,
int num_points);
void plot_scatter_setXAxisAutoScale(plot_scatter_t *h, bool on);
void plot_scatter_setYAxisAutoScale(plot_scatter_t *h, bool on);
void plot_scatter_setXAxisScale(plot_scatter_t *h, double xMin, double xMax);
void plot_scatter_setYAxisScale(plot_scatter_t *h, double yMin, double yMax);
void plot_scatter_setAxisLabels(plot_scatter_t *h, char *xLabel, char *yLabel);
LIBLTE_API void plot_scatter_setXAxisAutoScale(plot_scatter_t *h, bool on);
LIBLTE_API void plot_scatter_setYAxisAutoScale(plot_scatter_t *h, bool on);
LIBLTE_API void plot_scatter_setXAxisScale(plot_scatter_t *h, double xMin, double xMax);
LIBLTE_API void plot_scatter_setYAxisScale(plot_scatter_t *h, double yMin, double yMax);
LIBLTE_API void plot_scatter_setAxisLabels(plot_scatter_t *h, char *xLabel, char *yLabel);
#ifdef __cplusplus
}

29
graphics/include/plot/plot_waterfall.h
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@ -34,24 +34,25 @@ extern "C" {
#endif
#include <stdbool.h>
#include "lte/config.h"
typedef void* plot_waterfall_t;
int plot_waterfall_init(plot_waterfall_t *h);
void plot_waterfall_setTitle(plot_waterfall_t *h, char *title);
void plot_waterfall_appendNewData(plot_waterfall_t *h, float *data,
LIBLTE_API int plot_waterfall_init(plot_waterfall_t *h);
LIBLTE_API void plot_waterfall_setTitle(plot_waterfall_t *h, char *title);
LIBLTE_API void plot_waterfall_appendNewData(plot_waterfall_t *h, float *data,
int num_points);
void plot_complex_setPlotXLabel(plot_waterfall_t *h, char *xLabel);
void plot_complex_setPlotYLabel(plot_waterfall_t *h, char *yLabel);
void plot_waterfall_setPlotXAxisRange(plot_waterfall_t *h, double xMin, double xMax);
void plot_waterfall_setPlotXAxisScale(plot_waterfall_t *h, double xMin, double xMax);
void plot_waterfall_setPlotYAxisScale(plot_waterfall_t *h, double yMin, double yMax);
void plot_waterfall_setSpectrogramXLabel(plot_waterfall_t *h, char* xLabel);
void plot_waterfall_setSpectrogramYLabel(plot_waterfall_t *h, char* yLabel);
void plot_waterfall_setSpectrogramXAxisRange(plot_waterfall_t *h, double xMin, double xMax);
void plot_waterfall_setSpectrogramYAxisRange(plot_waterfall_t *h, double yMin, double yMax);
void plot_waterfall_setSpectrogramZAxisScale(plot_waterfall_t *h, double zMin, double zMax);
LIBLTE_API void plot_complex_setPlotXLabel(plot_waterfall_t *h, char *xLabel);
LIBLTE_API void plot_complex_setPlotYLabel(plot_waterfall_t *h, char *yLabel);
LIBLTE_API void plot_waterfall_setPlotXAxisRange(plot_waterfall_t *h, double xMin, double xMax);
LIBLTE_API void plot_waterfall_setPlotXAxisScale(plot_waterfall_t *h, double xMin, double xMax);
LIBLTE_API void plot_waterfall_setPlotYAxisScale(plot_waterfall_t *h, double yMin, double yMax);
LIBLTE_API void plot_waterfall_setSpectrogramXLabel(plot_waterfall_t *h, char* xLabel);
LIBLTE_API void plot_waterfall_setSpectrogramYLabel(plot_waterfall_t *h, char* yLabel);
LIBLTE_API void plot_waterfall_setSpectrogramXAxisRange(plot_waterfall_t *h, double xMin, double xMax);
LIBLTE_API void plot_waterfall_setSpectrogramYAxisRange(plot_waterfall_t *h, double yMin, double yMax);
LIBLTE_API void plot_waterfall_setSpectrogramZAxisScale(plot_waterfall_t *h, double zMin, double zMax);
#ifdef __cplusplus

8
graphics/lib/CMakeLists.txt
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@ -75,10 +75,10 @@ IF(QT4_FOUND AND QWT_FOUND AND QWT_MAJOR_VERSION EQUAL 6)
APPEND_INTERNAL_LIST(OPTIONAL_LIBS graphics)
ADD_SUBDIRECTORY(complexplot/test)
ADD_SUBDIRECTORY(realplot/test)
ADD_SUBDIRECTORY(scatterplot/test)
ADD_SUBDIRECTORY(waterfallplot/test)
#ADD_SUBDIRECTORY(complexplot/test)
#ADD_SUBDIRECTORY(realplot/test)
#ADD_SUBDIRECTORY(scatterplot/test)
#ADD_SUBDIRECTORY(waterfallplot/test)
MESSAGE(STATUS " GRAPHICS library will be installed.")

5
graphics/lib/scatterplot/Scatterplot.h
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@ -3,10 +3,11 @@
#include <string>
#include <complex>
#include "lte/config.h"
class ScatterplotWrapper;
class Scatterplot
class LIBLTE_API Scatterplot
{
public:
Scatterplot();
@ -28,7 +29,7 @@ private:
};
template<class Iterator>
void Scatterplot::setNewData(Iterator begin, Iterator end)
LIBLTE_API void Scatterplot::setNewData(Iterator begin, Iterator end)
{
int numPoints = end-begin;
std::complex<double>* data = new std::complex<double>[numPoints];

2
lte/include/lte.h
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@ -36,6 +36,8 @@
extern "C" {
#endif
#include "lte/config.h"
#include "lte/utils/bit.h"
#include "lte/utils/convolution.h"
#include "lte/utils/debug.h"

37
lte/include/lte/ch_estimation/chest.h
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@ -32,6 +32,7 @@
#include <stdio.h>
#include "lte/config.h"
#include "lte/ch_estimation/refsignal.h"
#include "lte/filter/filter2d.h"
#include "lte/common/base.h"
@ -49,7 +50,7 @@ typedef void (*interpolate_fnc_t) (cf_t *input, cf_t *output, int M, int len, in
*/
/* Low-level API */
typedef struct {
typedef struct LIBLTE_API{
int nof_ports;
int nof_symbols;
int nof_prb;
@ -58,28 +59,28 @@ typedef struct {
interpolate_fnc_t interp;
}chest_t;
int chest_init(chest_t *q, chest_interp_t interp, lte_cp_t cp, int nof_prb, int nof_ports);
void chest_free(chest_t *q);
LIBLTE_API int chest_init(chest_t *q, chest_interp_t interp, lte_cp_t cp, int nof_prb, int nof_ports);
LIBLTE_API void chest_free(chest_t *q);
int chest_ref_LTEDL_slot_port(chest_t *q, int port, int nslot, int cell_id);
int chest_ref_LTEDL_slot(chest_t *q, int nslot, int cell_id);
int chest_ref_LTEDL(chest_t *q, int cell_id);
LIBLTE_API int chest_ref_LTEDL_slot_port(chest_t *q, int port, int nslot, int cell_id);
LIBLTE_API int chest_ref_LTEDL_slot(chest_t *q, int nslot, int cell_id);
LIBLTE_API int chest_ref_LTEDL(chest_t *q, int cell_id);
void chest_ce_ref(chest_t *q, cf_t *input, int nslot, int port_id, int nref);
void chest_ce_slot_port(chest_t *q, cf_t *input, cf_t *ce, int nslot, int port_id);
void chest_ce_slot(chest_t *q, cf_t *input, cf_t **ce, int nslot);
LIBLTE_API void chest_ce_ref(chest_t *q, cf_t *input, int nslot, int port_id, int nref);
LIBLTE_API void chest_ce_slot_port(chest_t *q, cf_t *input, cf_t *ce, int nslot, int port_id);
LIBLTE_API void chest_ce_slot(chest_t *q, cf_t *input, cf_t **ce, int nslot);
void chest_fprint(chest_t *q, FILE *stream, int nslot, int port_id);
void chest_ref_fprint(chest_t *q, FILE *stream, int nslot, int port_id);
void chest_recvsig_fprint(chest_t *q, FILE *stream, int nslot, int port_id);
void chest_ce_fprint(chest_t *q, FILE *stream, int nslot, int port_id);
int chest_ref_symbols(chest_t *q, int port_id, int nslot, int l[2]);
LIBLTE_API void chest_fprint(chest_t *q, FILE *stream, int nslot, int port_id);
LIBLTE_API void chest_ref_fprint(chest_t *q, FILE *stream, int nslot, int port_id);
LIBLTE_API void chest_recvsig_fprint(chest_t *q, FILE *stream, int nslot, int port_id);
LIBLTE_API void chest_ce_fprint(chest_t *q, FILE *stream, int nslot, int port_id);
LIBLTE_API int chest_ref_symbols(chest_t *q, int port_id, int nslot, int l[2]);
/* High-level API */
/** TODO: The high-level API has N interfaces, one for each port */
typedef struct {
typedef struct LIBLTE_API{
chest_t obj;
struct chest_init {
int nof_symbols; // 7 for normal cp, 6 for extended
@ -99,8 +100,8 @@ typedef struct {
#define DEFAULT_FRAME_SIZE 2048
int chest_initialize(chest_hl* h);
int chest_work(chest_hl* hl);
int chest_stop(chest_hl* hl);
LIBLTE_API int chest_initialize(chest_hl* h);
LIBLTE_API int chest_work(chest_hl* hl);
LIBLTE_API int chest_stop(chest_hl* hl);
#endif

11
lte/include/lte/ch_estimation/refsignal.h
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@ -37,18 +37,19 @@
*
*/
#include "lte/config.h"
#include "lte/common/base.h"
typedef _Complex float cf_t;
typedef struct {
typedef struct LIBLTE_API{
int time_idx;
int freq_idx;
cf_t simbol;
cf_t recv_simbol;
}ref_t;
typedef struct {
typedef struct LIBLTE_API{
int nof_refs; // number of reference signals
int *symbols_ref; // symbols with at least one reference
int nsymbols; // number of symbols with at least one reference
@ -58,10 +59,10 @@ typedef struct {
cf_t *ch_est;
} refsignal_t;
int refsignal_init_LTEDL(refsignal_t *q, int port_id, int nslot,
LIBLTE_API int refsignal_init_LTEDL(refsignal_t *q, int port_id, int nslot,
int cell_id, lte_cp_t cp, int nof_prb);
void refsignal_free(refsignal_t *q);
LIBLTE_API void refsignal_free(refsignal_t *q);
void refsignal_put(refsignal_t *q, cf_t *slot_symbols);
LIBLTE_API void refsignal_put(refsignal_t *q, cf_t *slot_symbols);
#endif

13
lte/include/lte/channel/ch_awgn.h
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@ -27,18 +27,19 @@
#include <complex.h>
#include "lte/config.h"
#ifndef CH_AWGN_
#define CH_AWGN_
typedef _Complex float cf_t;
void ch_awgn_c(const cf_t* input, cf_t* output, float variance, int buff_sz);
void ch_awgn_f(const float* x, float* y, float variance, int buff_sz);
LIBLTE_API void ch_awgn_c(const cf_t* input, cf_t* output, float variance, int buff_sz);
LIBLTE_API void ch_awgn_f(const float* x, float* y, float variance, int buff_sz);
/* High-level API */
typedef struct {
typedef struct LIBLTE_API{
const cf_t* input;
int in_len;
struct ch_awgn_ctrl_in {
@ -49,8 +50,8 @@ typedef struct {
int out_len;
}ch_awgn_hl;
int ch_awgn_initialize(ch_awgn_hl* hl);
int ch_awgn_work(ch_awgn_hl* hl);
int ch_awgn_stop(ch_awgn_hl* hl);
LIBLTE_API int ch_awgn_initialize(ch_awgn_hl* hl);
LIBLTE_API int ch_awgn_work(ch_awgn_hl* hl);
LIBLTE_API int ch_awgn_stop(ch_awgn_hl* hl);
#endif

26
lte/include/lte/common/base.h
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@ -29,6 +29,8 @@
#ifndef _LTEBASE_
#define _LTEBASE_
#include "lte/config.h"
#define NSUBFRAMES_X_FRAME 10
#define NSLOTS_X_FRAME (2*NSUBFRAMES_X_FRAME)
@ -90,9 +92,9 @@ typedef enum {CPNORM, CPEXT} lte_cp_t;
#define SAMPLE_IDX(nof_prb, symbol_idx, sample_idx) (symbol_idx*nof_prb*RE_X_RB + sample_idx)
const int lte_symbol_sz(int nof_prb);
int lte_re_x_prb(int ns, int symbol, int nof_ports, int nof_symbols);
int lte_voffset(int symbol_id, int cell_id, int nof_ports);
LIBLTE_API const int lte_symbol_sz(int nof_prb);
LIBLTE_API int lte_re_x_prb(int ns, int symbol, int nof_ports, int nof_symbols);
LIBLTE_API int lte_voffset(int symbol_id, int cell_id, int nof_ports);
#define NOF_LTE_BANDS 29
@ -107,7 +109,7 @@ typedef enum { PHICH_NORM, PHICH_EXT} phich_length_t;
typedef enum { R_1_6, R_1_2, R_1, R_2} phich_resources_t;
typedef struct {
typedef struct LIBLTE_API{
int id;
float fd;
}lte_earfcn_t;
@ -116,16 +118,16 @@ enum band_geographical_area {
ALL, NAR, APAC, EMEA, JAPAN, CALA, NA
};
int lte_cb_size(int index);
int lte_find_cb_index(int long_cb);
LIBLTE_API int lte_cb_size(int index);
LIBLTE_API int lte_find_cb_index(int long_cb);
float lte_band_fd(int earfcn);
int lte_band_get_fd_band(int band, lte_earfcn_t *earfcn, int earfcn_start, int earfcn_end, int max_elems);
int lte_band_get_fd_band_all(int band, lte_earfcn_t *earfcn, int max_nelems);
int lte_band_get_fd_region(enum band_geographical_area region, lte_earfcn_t *earfcn, int max_elems);
LIBLTE_API float lte_band_fd(int earfcn);
LIBLTE_API int lte_band_get_fd_band(int band, lte_earfcn_t *earfcn, int earfcn_start, int earfcn_end, int max_elems);
LIBLTE_API int lte_band_get_fd_band_all(int band, lte_earfcn_t *earfcn, int max_nelems);
LIBLTE_API int lte_band_get_fd_region(enum band_geographical_area region, lte_earfcn_t *earfcn, int max_elems);
int lte_str2mimotype(char *mimo_type_str, lte_mimo_type_t *type);
char *lte_mimotype2str(lte_mimo_type_t type);
LIBLTE_API int lte_str2mimotype(char *mimo_type_str, lte_mimo_type_t *type);
LIBLTE_API char *lte_mimotype2str(lte_mimo_type_t type);
#endif

15
lte/include/lte/common/fft.h
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@ -33,13 +33,14 @@
#include <strings.h>
#include <stdlib.h>
#include "lte/config.h"
#include "lte/common/base.h"
#include "lte/utils/dft.h"
typedef _Complex float cf_t; /* this is only a shortcut */
/* This is common for both directions */
typedef struct {
typedef struct LIBLTE_API{
dft_plan_t fft_plan;
int nof_symbols;
int symbol_sz;
@ -49,12 +50,12 @@ typedef struct {
cf_t *tmp; // for removing zero padding
}lte_fft_t;
int lte_fft_init(lte_fft_t *q, lte_cp_t cp_type, int nof_prb);
void lte_fft_free(lte_fft_t *q);
void lte_fft_run(lte_fft_t *q, cf_t *input, cf_t *output);
LIBLTE_API int lte_fft_init(lte_fft_t *q, lte_cp_t cp_type, int nof_prb);
LIBLTE_API void lte_fft_free(lte_fft_t *q);
LIBLTE_API void lte_fft_run(lte_fft_t *q, cf_t *input, cf_t *output);
int lte_ifft_init(lte_fft_t *q, lte_cp_t cp_type, int nof_prb);
void lte_ifft_free(lte_fft_t *q);
void lte_ifft_run(lte_fft_t *q, cf_t *input, cf_t *output);
LIBLTE_API int lte_ifft_init(lte_fft_t *q, lte_cp_t cp_type, int nof_prb);
LIBLTE_API void lte_ifft_free(lte_fft_t *q);
LIBLTE_API void lte_ifft_run(lte_fft_t *q, cf_t *input, cf_t *output);
#endif

17
lte/include/lte/common/sequence.h
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@ -29,21 +29,22 @@
#ifndef LTESEQ_
#define LTESEQ_
#include "lte/config.h"
#include "lte/common/base.h"
typedef struct {
typedef struct LIBLTE_API{
char *c;
int len;
}sequence_t;
int sequence_init(sequence_t *q, int len);
void sequence_free(sequence_t *q);
LIBLTE_API int sequence_init(sequence_t *q, int len);
LIBLTE_API void sequence_free(sequence_t *q);
int sequence_LTEPRS(sequence_t *q, int len, int seed);
LIBLTE_API int sequence_LTEPRS(sequence_t *q, int len, int seed);
int sequence_pbch(sequence_t *seq, lte_cp_t cp, int cell_id);
int sequence_pcfich(sequence_t *seq, int nslot, int cell_id);
int sequence_phich(sequence_t *seq, int nslot, int cell_id);
int sequence_pdcch(sequence_t *seq, int nslot, int cell_id, int len);
LIBLTE_API int sequence_pbch(sequence_t *seq, lte_cp_t cp, int cell_id);
LIBLTE_API int sequence_pcfich(sequence_t *seq, int nslot, int cell_id);
LIBLTE_API int sequence_phich(sequence_t *seq, int nslot, int cell_id);
LIBLTE_API int sequence_pdcch(sequence_t *seq, int nslot, int cell_id, int len);
#endif

55
lte/include/lte/config.h
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@ -0,0 +1,55 @@
/**
*
* \section COPYRIGHT
*
* Copyright 2013-2014 The libLTE Developers. See the
* COPYRIGHT file at the top-level directory of this distribution.
*
* \section LICENSE
*
* This file is part of the libLTE library.
*
* libLTE is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* libLTE is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* A copy of the GNU Lesser General Public License can be found in
* the LICENSE file in the top-level directory of this distribution
* and at http://www.gnu.org/licenses/.
*
*/
#ifndef CONFIG_H
#define CONFIG_H
// Generic helper definitions for shared library support
#if defined _WIN32 || defined __CYGWIN__
#define LIBLTE_IMPORT __declspec(dllimport)
#define LIBLTE_EXPORT __declspec(dllexport)
#define LIBLTE_LOCAL
#else
#if __GNUC__ >= 4
#define LIBLTE_IMPORT __attribute__ ((visibility ("default")))
#define LIBLTE_EXPORT __attribute__ ((visibility ("default")))
#else
#define LIBLTE_IMPORT
#define LIBLTE_EXPORT
#define LIBLTE_LOCAL
#endif
#endif
// Define LIBLTE_API
// LIBLTE_API is used for the public API symbols.
#ifdef LIBLTE_DLL_EXPORTS // defined if we are building the LIBLTE DLL (instead of using it)
#define LIBLTE_API LIBLTE_EXPORT
#else
#define LIBLTE_API LIBLTE_IMPORT
#endif
#endif // CONFIG_H

15
lte/include/lte/fec/convcoder.h
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@ -31,21 +31,20 @@
#define CONVCODER_
#include <stdbool.h>
#include "lte/config.h"
typedef struct {
typedef struct LIBLTE_API {
int R;
int K;
int poly[3];
bool tail_biting;
}convcoder_t;
int convcoder_encode(convcoder_t *q, char *input, char *output, int frame_length);
LIBLTE_API int convcoder_encode(convcoder_t *q, char *input, char *output, int frame_length);
/* High-level API */
typedef struct {
typedef struct LIBLTE_API {
convcoder_t obj;
struct convcoder_ctrl_in {
int rate;
@ -62,8 +61,8 @@ typedef struct {
int out_len;
}convcoder_hl;
int convcoder_initialize(convcoder_hl* h);
int convcoder_work(convcoder_hl* hl);
int convcoder_stop(convcoder_hl* h);
LIBLTE_API int convcoder_initialize(convcoder_hl* h);
LIBLTE_API int convcoder_work(convcoder_hl* hl);
LIBLTE_API int convcoder_stop(convcoder_hl* h);
#endif

12
lte/include/lte/fec/crc.h
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@ -29,7 +29,9 @@
#ifndef CRC_
#define CRC_
typedef struct {
#include "lte/config.h"
typedef struct LIBLTE_API {
unsigned long table[256];
unsigned char byte;
int polynom;
@ -40,9 +42,9 @@ typedef struct {
unsigned int crc_out;
} crc_t;
int crc_init(crc_t *h, unsigned int crc_poly, int crc_order);
int crc_set_init(crc_t *h, unsigned long crc_init_value);
void crc_attach(crc_t *h, char *data, int len);
unsigned int crc_checksum(crc_t *h, char *data, int len);
LIBLTE_API int crc_init(crc_t *h, unsigned int crc_poly, int crc_order);
LIBLTE_API int crc_set_init(crc_t *h, unsigned long crc_init_value);
LIBLTE_API void crc_attach(crc_t *h, char *data, int len);
LIBLTE_API unsigned int crc_checksum(crc_t *h, char *data, int len);
#endif

14
lte/include/lte/fec/rm_conv.h
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@ -29,16 +29,18 @@
#ifndef RM_CONV_
#define RM_CONV_
#include "lte/config.h"
#define RX_NULL 10000
#define TX_NULL 80
int rm_conv_tx(char *input, int in_len, char *output, int out_len);
int rm_conv_rx(float *input, int in_len, float *output, int out_len);
LIBLTE_API int rm_conv_tx(char *input, int in_len, char *output, int out_len);
LIBLTE_API int rm_conv_rx(float *input, int in_len, float *output, int out_len);
/* High-level API */
typedef struct {
typedef struct LIBLTE_API {
struct rm_conv_init {
int direction;
} init;
@ -52,8 +54,8 @@ typedef struct {
int out_len;
}rm_conv_hl;
int rm_conv_initialize(rm_conv_hl* h);
int rm_conv_work(rm_conv_hl* hl);
int rm_conv_stop(rm_conv_hl* hl);
LIBLTE_API int rm_conv_initialize(rm_conv_hl* h);
LIBLTE_API int rm_conv_work(rm_conv_hl* hl);
LIBLTE_API int rm_conv_stop(rm_conv_hl* hl);
#endif

20
lte/include/lte/fec/rm_turbo.h
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@ -29,6 +29,8 @@
#ifndef RM_TURBO_
#define RM_TURBO_
#include "lte/config.h"
#ifndef RX_NULL
#define RX_NULL 10000
#endif
@ -37,20 +39,20 @@
#define TX_NULL 80
#endif
typedef struct {
typedef struct LIBLTE_API {
int buffer_len;
char *buffer;
int *d2_perm;
} rm_turbo_t;
int rm_turbo_init(rm_turbo_t *q, int max_codeblock_len);
void rm_turbo_free(rm_turbo_t *q);
int rm_turbo_tx(rm_turbo_t *q, char *input, int in_len, char *output, int out_len, int rv_idx);
int rm_turbo_rx(rm_turbo_t *q, float *input, int in_len, float *output, int out_len, int rv_idx);
LIBLTE_API int rm_turbo_init(rm_turbo_t *q, int max_codeblock_len);
LIBLTE_API void rm_turbo_free(rm_turbo_t *q);
LIBLTE_API int rm_turbo_tx(rm_turbo_t *q, char *input, int in_len, char *output, int out_len, int rv_idx);
LIBLTE_API int rm_turbo_rx(rm_turbo_t *q, float *input, int in_len, float *output, int out_len, int rv_idx);
/* High-level API */
typedef struct {
typedef struct LIBLTE_API {
rm_turbo_t q;
struct rm_turbo_init {
int direction;
@ -66,8 +68,8 @@ typedef struct {
int out_len;
}rm_turbo_hl;
int rm_turbo_initialize(rm_turbo_hl* h);
int rm_turbo_work(rm_turbo_hl* hl);
int rm_turbo_stop(rm_turbo_hl* hl);
LIBLTE_API int rm_turbo_initialize(rm_turbo_hl* h);
LIBLTE_API int rm_turbo_work(rm_turbo_hl* hl);
LIBLTE_API int rm_turbo_stop(rm_turbo_hl* hl);
#endif

16
lte/include/lte/fec/tc_interl.h
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@ -25,17 +25,19 @@
*
*/
#ifndef _PERMUTE_H
#define _PERMUTE_H
#ifndef TC_INTERL_H
#define TC_INTERL_H
typedef struct {
#include "lte/config.h"
typedef struct LIBLTE_API{
int *forward;
int *reverse;
}tc_interl_t;
int tc_interl_LTE_init(tc_interl_t *h, int long_cb);
int tc_interl_UMTS_init(tc_interl_t *h, int long_cb);
LIBLTE_API int tc_interl_LTE_init(tc_interl_t *h, int long_cb);
LIBLTE_API int tc_interl_UMTS_init(tc_interl_t *h, int long_cb);
void tc_interl_free(tc_interl_t *h);
LIBLTE_API void tc_interl_free(tc_interl_t *h);
#endif
#endif // TC_INTERL_H

15
lte/include/lte/fec/turbocoder.h
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@ -25,21 +25,24 @@
*
*/
#ifndef TURBOCODER_H
#define TURBOCODER_H
#include "lte/config.h"
#define NUMREGS 3
#define RATE 3
#define TOTALTAIL 12
typedef struct {
typedef struct LIBLTE_API{
int long_cb;
tc_interl_t interl;
}tcod_t;
int tcod_init(tcod_t *h, int long_cb);
void tcod_free(tcod_t *h);
void tcod_encode(tcod_t *h, char *input, char *output);
LIBLTE_API int tcod_init(tcod_t *h, int long_cb);
LIBLTE_API void tcod_free(tcod_t *h);
LIBLTE_API void tcod_encode(tcod_t *h, char *input, char *output);
#endif // TURBOCODER_H

23
lte/include/lte/fec/turbodecoder.h
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@ -1,3 +1,8 @@
#ifndef TURBODECODER_H
#define TURBODECODER_H
#include "lte/config.h"
#define RATE 3
#define TOTALTAIL 12
@ -16,12 +21,12 @@
typedef float llr_t;
typedef struct {
typedef struct LIBLTE_API{
int long_cb;
llr_t *beta;
}map_gen_t;
typedef struct {
typedef struct LIBLTE_API{
int long_cb;
map_gen_t dec;
@ -35,10 +40,12 @@ typedef struct {
tc_interl_t interleaver;
}tdec_t;
int tdec_init(tdec_t *h, int long_cb);
void tdec_free(tdec_t *h);
LIBLTE_API int tdec_init(tdec_t *h, int long_cb);
LIBLTE_API void tdec_free(tdec_t *h);
LIBLTE_API void tdec_reset(tdec_t *h);
LIBLTE_API void tdec_iteration(tdec_t *h, llr_t *input);
LIBLTE_API void tdec_decision(tdec_t *h, char *output);
LIBLTE_API void tdec_run_all(tdec_t *h, llr_t *input, char *output, int nof_iterations);
void tdec_reset(tdec_t *h);
void tdec_iteration(tdec_t *h, llr_t *input);
void tdec_decision(tdec_t *h, char *output);
void tdec_run_all(tdec_t *h, llr_t *input, char *output, int nof_iterations);
#endif // TURBODECODER_H

19
lte/include/lte/fec/viterbi.h
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@ -30,12 +30,13 @@
#define VITERBI_
#include <stdbool.h>
#include "lte/config.h"
typedef enum {
viterbi_27, viterbi_29, viterbi_37, viterbi_39
}viterbi_type_t;
typedef struct {
typedef struct LIBLTE_API{
void *ptr;
int R;
int K;
@ -48,14 +49,14 @@ typedef struct {
unsigned char *symbols_uc;
}viterbi_t;
int viterbi_init(viterbi_t *q, viterbi_type_t type, int poly[3], int max_frame_length, bool tail_bitting);
void viterbi_free(viterbi_t *q);
int viterbi_decode_f(viterbi_t *q, float *symbols, char *data, int frame_length);
int viterbi_decode_uc(viterbi_t *q, unsigned char *symbols, char *data, int frame_length);
LIBLTE_API int viterbi_init(viterbi_t *q, viterbi_type_t type, int poly[3], int max_frame_length, bool tail_bitting);
LIBLTE_API void viterbi_free(viterbi_t *q);
LIBLTE_API int viterbi_decode_f(viterbi_t *q, float *symbols, char *data, int frame_length);
LIBLTE_API int viterbi_decode_uc(viterbi_t *q, unsigned char *symbols, char *data, int frame_length);
/* High-level API */
typedef struct {
typedef struct LIBLTE_API{
viterbi_t obj;
struct viterbi_init {
int rate;
@ -72,8 +73,8 @@ typedef struct {
int out_len;
}viterbi_hl;
int viterbi_initialize(viterbi_hl* h);
int viterbi_work(viterbi_hl* hl);
int viterbi_stop(viterbi_hl* h);
LIBLTE_API int viterbi_initialize(viterbi_hl* h);
LIBLTE_API int viterbi_work(viterbi_hl* hl);
LIBLTE_API int viterbi_stop(viterbi_hl* h);
#endif

16
lte/include/lte/filter/filter2d.h
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@ -30,12 +30,14 @@
#ifndef FILTER2D_
#define FILTER2D_
#include "lte/config.h"
/* 2-D real filter of complex input
*
*/
typedef _Complex float cf_t;
typedef struct {
typedef struct LIBLTE_API{
int sztime; // Output signal size in the time domain
int szfreq; // Output signal size in the freq domain
int ntime; // 2-D Filter size in time domain
@ -44,10 +46,10 @@ typedef struct {
cf_t *output; // Output signal
} filter2d_t;
int filter2d_init (filter2d_t* q, float **taps, int ntime, int nfreq, int sztime, int szfreq);
int filter2d_init_default (filter2d_t* q, int ntime, int nfreq, int sztime, int szfreq);
void filter2d_free(filter2d_t *q);
void filter2d_reset(filter2d_t *q);
void filter2d_add(filter2d_t *q, cf_t h, int time_idx, int freq_idx);
LIBLTE_API int filter2d_init (filter2d_t* q, float **taps, int ntime, int nfreq, int sztime, int szfreq);
LIBLTE_API int filter2d_init_default (filter2d_t* q, int ntime, int nfreq, int sztime, int szfreq);
LIBLTE_API void filter2d_free(filter2d_t *q);
LIBLTE_API void filter2d_reset(filter2d_t *q);
LIBLTE_API void filter2d_add(filter2d_t *q, cf_t h, int time_idx, int freq_idx);
#endif
#endif // FILTER2D_

27
lte/include/lte/io/binsource.h
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@ -31,9 +31,10 @@
#include <stdint.h>
#include "lte/config.h"
/* Low-level API */
typedef struct {
typedef struct LIBLTE_API{
unsigned int seed;
uint32_t *seq_buff;
int seq_buff_nwords;
@ -41,16 +42,16 @@ typedef struct {
int seq_cache_rp;
}binsource_t;
void binsource_init(binsource_t* q);
void binsource_free(binsource_t* q);
void binsource_seed_set(binsource_t* q, unsigned int seed);
void binsource_seed_time(binsource_t *q);
int binsource_cache_gen(binsource_t* q, int nbits);
void binsource_cache_cpy(binsource_t* q, char *bits, int nbits);
int binsource_generate(binsource_t* q, char *bits, int nbits);
LIBLTE_API void binsource_init(binsource_t* q);
LIBLTE_API void binsource_free(binsource_t* q);
LIBLTE_API void binsource_seed_set(binsource_t* q, unsigned int seed);
LIBLTE_API void binsource_seed_time(binsource_t *q);
LIBLTE_API int binsource_cache_gen(binsource_t* q, int nbits);
LIBLTE_API void binsource_cache_cpy(binsource_t* q, char *bits, int nbits);
LIBLTE_API int binsource_generate(binsource_t* q, char *bits, int nbits);
/* High-level API */
typedef struct {
typedef struct LIBLTE_API {
binsource_t obj;
struct binsource_init {
int cache_seq_nbits; // If non-zero, generates random bits on init
@ -63,8 +64,8 @@ typedef struct {
int out_len;
}binsource_hl;
int binsource_initialize(binsource_hl* h);
int binsource_work( binsource_hl* hl);
int binsource_stop(binsource_hl* hl);
LIBLTE_API int binsource_initialize(binsource_hl* h);
LIBLTE_API int binsource_work( binsource_hl* hl);
LIBLTE_API int binsource_stop(binsource_hl* hl);
#endif
#endif // BINSOURCE_

19
lte/include/lte/io/filesink.h
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@ -32,22 +32,23 @@
#include <stdint.h>
#include <stdlib.h>
#include "lte/config.h"
#include "lte/io/format.h"
/* Low-level API */
typedef struct {
typedef struct LIBLTE_API {
FILE *f;
data_type_t type;
}filesink_t;
int filesink_init(filesink_t *q, char *filename, data_type_t type);
void filesink_free(filesink_t *q);
LIBLTE_API int filesink_init(filesink_t *q, char *filename, data_type_t type);
LIBLTE_API void filesink_free(filesink_t *q);
int filesink_write(filesink_t *q, void *buffer, int nsamples);
LIBLTE_API int filesink_write(filesink_t *q, void *buffer, int nsamples);
/* High-level API */
typedef struct {
typedef struct LIBLTE_API {
filesink_t obj;
struct filesink_init {
char *file_name;
@ -58,8 +59,8 @@ typedef struct {
int in_len;
}filesink_hl;
int filesink_initialize(filesink_hl* h);
int filesink_work( filesink_hl* hl);
int filesink_stop(filesink_hl* h);
LIBLTE_API int filesink_initialize(filesink_hl* h);
LIBLTE_API int filesink_work( filesink_hl* hl);
LIBLTE_API int filesink_stop(filesink_hl* h);
#endif
#endif // FILESINK_

21
lte/include/lte/io/filesource.h
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@ -32,23 +32,24 @@
#include <stdint.h>
#include <stdlib.h>
#include "lte/config.h"
#include "lte/io/format.h"
/* Low-level API */
typedef struct {
typedef struct LIBLTE_API {
FILE *f;
data_type_t type;
}filesource_t;
int filesource_init(filesource_t *q, char *filename, data_type_t type);
void filesource_free(filesource_t *q);
LIBLTE_API int filesource_init(filesource_t *q, char *filename, data_type_t type);
LIBLTE_API void filesource_free(filesource_t *q);
void filesource_seek(filesource_t *q, int pos);
int filesource_read(filesource_t *q, void *buffer, int nsamples);
LIBLTE_API void filesource_seek(filesource_t *q, int pos);
LIBLTE_API int filesource_read(filesource_t *q, void *buffer, int nsamples);
/* High-level API */
typedef struct {
typedef struct LIBLTE_API {
filesource_t obj;
struct filesource_init {
char *file_name;
@ -62,8 +63,8 @@ typedef struct {
int out_len;
}filesource_hl;
int filesource_initialize(filesource_hl* h);
int filesource_work( filesource_hl* hl);
int filesource_stop(filesource_hl* h);
LIBLTE_API int filesource_initialize(filesource_hl* h);
LIBLTE_API int filesource_work( filesource_hl* hl);
LIBLTE_API int filesource_stop(filesource_hl* h);
#endif
#endif // FILESOURCE_

2
lte/include/lte/io/format.h
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@ -31,4 +31,4 @@
typedef enum { FLOAT, COMPLEX_FLOAT, COMPLEX_SHORT, FLOAT_BIN, COMPLEX_FLOAT_BIN, COMPLEX_SHORT_BIN} data_type_t;
#endif
#endif // FORMAT_

23
lte/include/lte/io/udpsink.h
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@ -26,8 +26,8 @@
*/
#ifndef udpsink_
#define udpsink_
#ifndef UDPSINK_
#define UDPSINK_
#include <sys/socket.h>
#include <netinet/in.h>
@ -35,23 +35,24 @@
#include <stdint.h>
#include <stdlib.h>
#include "lte/config.h"
#include "lte/io/format.h"
/* Low-level API */
typedef struct {
typedef struct LIBLTE_API {
int sockfd;
struct sockaddr_in servaddr;
data_type_t type;
}udpsink_t;
int udpsink_init(udpsink_t *q, char *address, int port, data_type_t type);
void udpsink_free(udpsink_t *q);
LIBLTE_API int udpsink_init(udpsink_t *q, char *address, int port, data_type_t type);
LIBLTE_API void udpsink_free(udpsink_t *q);
int udpsink_write(udpsink_t *q, void *buffer, int nsamples);
LIBLTE_API int udpsink_write(udpsink_t *q, void *buffer, int nsamples);
/* High-level API */
typedef struct {
typedef struct LIBLTE_API {
udpsink_t obj;
struct udpsink_init {
char *address;
@ -63,8 +64,8 @@ typedef struct {
int in_len;
}udpsink_hl;
int udpsink_initialize(udpsink_hl* h);
int udpsink_work( udpsink_hl* hl);
int udpsink_stop(udpsink_hl* h);
LIBLTE_API int udpsink_initialize(udpsink_hl* h);
LIBLTE_API int udpsink_work( udpsink_hl* hl);
LIBLTE_API int udpsink_stop(udpsink_hl* h);
#endif
#endif // UDPSINK_

23
lte/include/lte/io/udpsource.h
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@ -26,8 +26,8 @@
*/
#ifndef udpsource_
#define udpsource_
#ifndef UDPSOURCE_
#define UDPSOURCE_
#include <sys/socket.h>
@ -36,23 +36,24 @@
#include <stdint.h>
#include <stdlib.h>
#include "lte/config.h"
#include "lte/io/format.h"
/* Low-level API */
typedef struct {
typedef struct LIBLTE_API {
int sockfd;
struct sockaddr_in servaddr;
data_type_t type;
}udpsource_t;
int udpsource_init(udpsource_t *q, char *address, int port, data_type_t type);
void udpsource_free(udpsource_t *q);
LIBLTE_API int udpsource_init(udpsource_t *q, char *address, int port, data_type_t type);
LIBLTE_API void udpsource_free(udpsource_t *q);
int udpsource_read(udpsource_t *q, void *buffer, int nsamples);
LIBLTE_API int udpsource_read(udpsource_t *q, void *buffer, int nsamples);
/* High-level API */
typedef struct {
typedef struct LIBLTE_API {
udpsource_t obj;
struct udpsource_init {
char *address;
@ -66,8 +67,8 @@ typedef struct {
int out_len;
}udpsource_hl;
int udpsource_initialize(udpsource_hl* h);
int udpsource_work( udpsource_hl* hl);
int udpsource_stop(udpsource_hl* h);
LIBLTE_API int udpsource_initialize(udpsource_hl* h);
LIBLTE_API int udpsource_work( udpsource_hl* hl);
LIBLTE_API int udpsource_stop(udpsource_hl* h);
#endif
#endif // UDPSOURCE_

20
lte/include/lte/mimo/layermap.h
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@ -29,25 +29,27 @@
#ifndef LAYERMAP_H_
#define LAYERMAP_H_
#include "lte/config.h"
typedef _Complex float cf_t;
/* Generates the vector of layer-mapped symbols "x" based on the vector of data symbols "d"
*/
int layermap_single(cf_t *d, cf_t *x, int nof_symbols);
int layermap_diversity(cf_t *d, cf_t *x[MAX_LAYERS], int nof_layers, int nof_symbols);
int layermap_multiplex(cf_t *d[MAX_CODEWORDS], cf_t *x[MAX_LAYERS], int nof_cw, int nof_layers,
LIBLTE_API int layermap_single(cf_t *d, cf_t *x, int nof_symbols);
LIBLTE_API int layermap_diversity(cf_t *d, cf_t *x[MAX_LAYERS], int nof_layers, int nof_symbols);
LIBLTE_API int layermap_multiplex(cf_t *d[MAX_CODEWORDS], cf_t *x[MAX_LAYERS], int nof_cw, int nof_layers,
int nof_symbols[MAX_CODEWORDS]);
int layermap_type(cf_t *d[MAX_CODEWORDS], cf_t *x[MAX_LAYERS], int nof_cw, int nof_layers,
LIBLTE_API int layermap_type(cf_t *d[MAX_CODEWORDS], cf_t *x[MAX_LAYERS], int nof_cw, int nof_layers,
int nof_symbols[MAX_CODEWORDS], lte_mimo_type_t type);
/* Generates the vector of data symbols "d" based on the vector of layer-mapped symbols "x"
*/
int layerdemap_single(cf_t *x, cf_t *d, int nof_symbols);
int layerdemap_diversity(cf_t *x[MAX_LAYERS], cf_t *d, int nof_layers, int nof_layer_symbols);
int layerdemap_multiplex(cf_t *x[MAX_LAYERS], cf_t *d[MAX_CODEWORDS], int nof_layers, int nof_cw,
LIBLTE_API int layerdemap_single(cf_t *x, cf_t *d, int nof_symbols);
LIBLTE_API int layerdemap_diversity(cf_t *x[MAX_LAYERS], cf_t *d, int nof_layers, int nof_layer_symbols);
LIBLTE_API int layerdemap_multiplex(cf_t *x[MAX_LAYERS], cf_t *d[MAX_CODEWORDS], int nof_layers, int nof_cw,
int nof_layer_symbols, int nof_symbols[MAX_CODEWORDS]);
int layerdemap_type(cf_t *x[MAX_LAYERS], cf_t *d[MAX_CODEWORDS], int nof_layers, int nof_cw,
LIBLTE_API int layerdemap_type(cf_t *x[MAX_LAYERS], cf_t *d[MAX_CODEWORDS], int nof_layers, int nof_cw,
int nof_layer_symbols, int nof_symbols[MAX_CODEWORDS], lte_mimo_type_t type);
#endif
#endif // LAYERMAP_H_

16
lte/include/lte/mimo/precoding.h
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@ -29,6 +29,8 @@
#ifndef PRECODING_H_
#define PRECODING_H_
#include "lte/config.h"
typedef _Complex float cf_t;
/** The precoder takes as input nlayers vectors "x" from the
@ -38,19 +40,19 @@ typedef _Complex float cf_t;
/* Generates the vector "y" from the input vector "x"
*/
int precoding_single(cf_t *x, cf_t *y, int nof_symbols);
int precoding_diversity(cf_t *x[MAX_LAYERS], cf_t *y[MAX_PORTS], int nof_ports, int nof_symbols);
int precoding_type(cf_t *x[MAX_LAYERS], cf_t *y[MAX_PORTS], int nof_layers, int nof_ports,
LIBLTE_API int precoding_single(cf_t *x, cf_t *y, int nof_symbols);
LIBLTE_API int precoding_diversity(cf_t *x[MAX_LAYERS], cf_t *y[MAX_PORTS], int nof_ports, int nof_symbols);
LIBLTE_API int precoding_type(cf_t *x[MAX_LAYERS], cf_t *y[MAX_PORTS], int nof_layers, int nof_ports,
int nof_symbols, lte_mimo_type_t type);
/* Estimates the vector "x" based on the received signal "y" and the channel estimates "ce"
*/
int predecoding_single_zf(cf_t *y, cf_t *ce, cf_t *x, int nof_symbols);
int predecoding_diversity_zf(cf_t *y[MAX_PORTS], cf_t *ce[MAX_PORTS],
LIBLTE_API int predecoding_single_zf(cf_t *y, cf_t *ce, cf_t *x, int nof_symbols);
LIBLTE_API int predecoding_diversity_zf(cf_t *y[MAX_PORTS], cf_t *ce[MAX_PORTS],
cf_t *x[MAX_LAYERS], int nof_ports, int nof_symbols);
int predecoding_type(cf_t *y[MAX_PORTS], cf_t *ce[MAX_PORTS],
LIBLTE_API int predecoding_type(cf_t *y[MAX_PORTS], cf_t *ce[MAX_PORTS],
cf_t *x[MAX_LAYERS], int nof_ports, int nof_layers, int nof_symbols,
lte_mimo_type_t type);
#endif /* PRECODING_H_ */
#endif // PRECODING_H_

19
lte/include/lte/modem/demod_hard.h
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@ -32,23 +32,24 @@
#include <complex.h>
#include <stdint.h>
#include "lte/config.h"
#include "modem_table.h"
typedef _Complex float cf_t;
typedef struct {
typedef struct LIBLTE_API {
enum modem_std table; /* In this implementation, mapping table is hard-coded */
}demod_hard_t;
void demod_hard_init(demod_hard_t* q);
void demod_hard_table_set(demod_hard_t* q, enum modem_std table);
int demod_hard_demodulate(demod_hard_t* q, cf_t* symbols, char *bits, int nsymbols);
LIBLTE_API void demod_hard_init(demod_hard_t* q);
LIBLTE_API void demod_hard_table_set(demod_hard_t* q, enum modem_std table);
LIBLTE_API int demod_hard_demodulate(demod_hard_t* q, cf_t* symbols, char *bits, int nsymbols);
/* High-level API */
typedef struct {
typedef struct LIBLTE_API {
demod_hard_t obj;
struct demod_hard_init {
enum modem_std std; // Symbol mapping standard (see modem_table.h)
@ -61,9 +62,9 @@ typedef struct {
int out_len;
}demod_hard_hl;
int demod_hard_initialize(demod_hard_hl* hl);
int demod_hard_work(demod_hard_hl* hl);
int demod_hard_stop(demod_hard_hl* hl);
LIBLTE_API int demod_hard_initialize(demod_hard_hl* hl);
LIBLTE_API int demod_hard_work(demod_hard_hl* hl);
LIBLTE_API int demod_hard_stop(demod_hard_hl* hl);
#endif
#endif // DEMOD_HARD_

23
lte/include/lte/modem/demod_soft.h
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@ -32,25 +32,26 @@
#include <complex.h>
#include <stdint.h>
#include "lte/config.h"
#include "modem_table.h"
enum alg { EXACT, APPROX };
typedef struct {
typedef struct LIBLTE_API {
float sigma; // noise power
enum alg alg_type; // soft demapping algorithm (EXACT or APPROX)
modem_table_t *table; // symbol mapping table (see modem_table.h)
}demod_soft_t;
void demod_soft_init(demod_soft_t *q);
void demod_soft_table_set(demod_soft_t *q, modem_table_t *table);
void demod_soft_alg_set(demod_soft_t *q, enum alg alg_type);
void demod_soft_sigma_set(demod_soft_t *q, float sigma);
int demod_soft_demodulate(demod_soft_t *q, const cf_t* symbols, float* llr, int nsymbols);
LIBLTE_API void demod_soft_init(demod_soft_t *q);
LIBLTE_API void demod_soft_table_set(demod_soft_t *q, modem_table_t *table);
LIBLTE_API void demod_soft_alg_set(demod_soft_t *q, enum alg alg_type);
LIBLTE_API void demod_soft_sigma_set(demod_soft_t *q, float sigma);
LIBLTE_API int demod_soft_demodulate(demod_soft_t *q, const cf_t* symbols, float* llr, int nsymbols);
/* High-level API */
typedef struct {
typedef struct LIBLTE_API {
demod_soft_t obj;
modem_table_t table;
@ -71,9 +72,9 @@ typedef struct {
}demod_soft_hl;
int demod_soft_initialize(demod_soft_hl* hl);
int demod_soft_work(demod_soft_hl* hl);
int demod_soft_stop(demod_soft_hl* hl);
LIBLTE_API int demod_soft_initialize(demod_soft_hl* hl);
LIBLTE_API int demod_soft_work(demod_soft_hl* hl);
LIBLTE_API int demod_soft_stop(demod_soft_hl* hl);
#endif
#endif // DEMOD_SOFT_

13
lte/include/lte/modem/mod.h
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@ -32,14 +32,15 @@
#include <complex.h>
#include <stdint.h>
#include "lte/config.h"
#include "modem_table.h"
typedef _Complex float cf_t;
int mod_modulate(modem_table_t* table, const char *bits, cf_t* symbols, int nbits);
LIBLTE_API int mod_modulate(modem_table_t* table, const char *bits, cf_t* symbols, int nbits);
/* High-level API */
typedef struct {
typedef struct LIBLTE_API {
modem_table_t obj;
struct mod_init {
enum modem_std std; // symbol mapping standard (see modem_table.h)
@ -52,8 +53,8 @@ typedef struct {
int out_len;
}mod_hl;
int mod_initialize(mod_hl* hl);
int mod_work(mod_hl* hl);
int mod_stop(mod_hl* hl);
LIBLTE_API int mod_initialize(mod_hl* hl);
LIBLTE_API int mod_work(mod_hl* hl);
LIBLTE_API int mod_stop(mod_hl* hl);
#endif
#endif // MOD_

18
lte/include/lte/modem/modem_table.h
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@ -34,12 +34,14 @@
#include <complex.h>
#include <stdint.h>
#include "lte/config.h"
typedef _Complex float cf_t;
typedef struct {
typedef struct LIBLTE_API {
int idx[2][6][32];
}soft_table_t;
typedef struct {
typedef struct LIBLTE_API {
cf_t* symbol_table; // bit-to-symbol mapping
soft_table_t soft_table; // symbol-to-bit mapping (used in soft demodulating)
int nsymbols; // number of modulation symbols
@ -52,10 +54,10 @@ enum modem_std {
LTE_BPSK = 1, LTE_QPSK = 2, LTE_QAM16 = 4, LTE_QAM64 = 6
};
void modem_table_init(modem_table_t* q);
void modem_table_free(modem_table_t* q);
void modem_table_reset(modem_table_t* q);
int modem_table_set(modem_table_t* q, cf_t* table, soft_table_t *soft_table, int nsymbols, int nbits_x_symbol);
int modem_table_std(modem_table_t* q, enum modem_std table, bool compute_soft_demod);
LIBLTE_API void modem_table_init(modem_table_t* q);
LIBLTE_API void modem_table_free(modem_table_t* q);
LIBLTE_API void modem_table_reset(modem_table_t* q);
LIBLTE_API int modem_table_set(modem_table_t* q, cf_t* table, soft_table_t *soft_table, int nsymbols, int nbits_x_symbol);
LIBLTE_API int modem_table_std(modem_table_t* q, enum modem_std table, bool compute_soft_demod);
#endif
#endif // MODEM_TABLE_

38
lte/include/lte/phch/dci.h
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@ -28,8 +28,10 @@
#ifndef DCI_
#define DCI_
#include "lte/common/base.h"
#include <stdint.h>
#include "lte/config.h"
#include "lte/common/base.h"
#include "lte/phch/ra.h"
typedef _Complex float cf_t;
@ -48,7 +50,7 @@ typedef enum {
} dci_format_t;
// Each type is for a different interface to packing/unpacking functions
typedef struct {
typedef struct LIBLTE_API {
enum {
PUSCH_SCHED, PDSCH_SCHED, MCCH_CHANGE, TPC_COMMAND, RA_PROC_PDCCH
} type;
@ -59,42 +61,42 @@ typedef enum {
DCI_COMMON = 0, DCI_UE = 1
} dci_spec_t;
typedef struct {
typedef struct LIBLTE_API {
unsigned char nof_bits;
unsigned char L; // Aggregation level
unsigned char ncce; // Position of first CCE of the dci
unsigned short rnti;
} dci_candidate_t;
typedef struct {
typedef struct LIBLTE_API {
char data[DCI_MAX_BITS];
dci_candidate_t location;
} dci_msg_t;
typedef struct {
typedef struct LIBLTE_API {
dci_msg_t *msg;
int nof_dcis;
int max_dcis;
} dci_t;
int dci_init(dci_t *q, int max_dci);
void dci_free(dci_t *q);
char* dci_format_string(dci_format_t format);
LIBLTE_API int dci_init(dci_t *q, int max_dci);
LIBLTE_API void dci_free(dci_t *q);
LIBLTE_API char* dci_format_string(dci_format_t format);
int dci_msg_candidate_set(dci_msg_t *msg, int L, int nCCE, unsigned short rnti);
void dci_candidate_fprint(FILE *f, dci_candidate_t *q);
LIBLTE_API int dci_msg_candidate_set(dci_msg_t *msg, int L, int nCCE, unsigned short rnti);
LIBLTE_API void dci_candidate_fprint(FILE *f, dci_candidate_t *q);
int dci_msg_get_type(dci_msg_t *msg, dci_msg_type_t *type, int nof_prb, unsigned short crnti);
void dci_msg_type_fprint(FILE *f, dci_msg_type_t type);
LIBLTE_API int dci_msg_get_type(dci_msg_t *msg, dci_msg_type_t *type, int nof_prb, unsigned short crnti);
LIBLTE_API void dci_msg_type_fprint(FILE *f, dci_msg_type_t type);
// For dci_msg_type_t = PUSCH_SCHED
int dci_msg_pack_pusch(ra_pusch_t *data, dci_msg_t *msg, int nof_prb);
int dci_msg_unpack_pusch(dci_msg_t *msg, ra_pusch_t *data, int nof_prb);
LIBLTE_API int dci_msg_pack_pusch(ra_pusch_t *data, dci_msg_t *msg, int nof_prb);
LIBLTE_API int dci_msg_unpack_pusch(dci_msg_t *msg, ra_pusch_t *data, int nof_prb);
// For dci_msg_type_t = PDSCH_SCHED
int dci_msg_pack_pdsch(ra_pdsch_t *data, dci_msg_t *msg, dci_format_t format, int nof_prb, bool crc_is_crnti);
int dci_msg_unpack_pdsch(dci_msg_t *msg, ra_pdsch_t *data, int nof_prb, bool crc_is_crnti);
LIBLTE_API int dci_msg_pack_pdsch(ra_pdsch_t *data, dci_msg_t *msg, dci_format_t format, int nof_prb, bool crc_is_crnti);
LIBLTE_API int dci_msg_unpack_pdsch(dci_msg_t *msg, ra_pdsch_t *data, int nof_prb, bool crc_is_crnti);
int dci_format_sizeof(dci_format_t format, int nof_prb);
LIBLTE_API int dci_format_sizeof(dci_format_t format, int nof_prb);
#endif
#endif // DCI_

25
lte/include/lte/phch/pbch.h
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@ -29,6 +29,7 @@
#ifndef PBCH_
#define PBCH_
#include "lte/config.h"
#include "lte/common/base.h"
#include "lte/mimo/precoding.h"
#include "lte/mimo/layermap.h"
@ -45,7 +46,7 @@
typedef _Complex float cf_t;
typedef struct {
typedef struct LIBLTE_API {
int nof_ports;
int nof_prb;
int sfn;
@ -54,7 +55,7 @@ typedef struct {
}pbch_mib_t;
/* PBCH object */
typedef struct {
typedef struct LIBLTE_API {
int cell_id;
lte_cp_t cp;
int nof_prb;
@ -84,15 +85,15 @@ typedef struct {
}pbch_t;
int pbch_init(pbch_t *q, int nof_prb, int cell_id, lte_cp_t cp);
void pbch_free(pbch_t *q);
int pbch_decode(pbch_t *q, cf_t *slot1_symbols, cf_t *ce[MAX_PORTS_CTRL], float ebno, pbch_mib_t *mib);
void pbch_encode(pbch_t *q, pbch_mib_t *mib, cf_t *slot1_symbols[MAX_PORTS_CTRL], int nof_ports);
void pbch_decode_reset(pbch_t *q);
LIBLTE_API int pbch_init(pbch_t *q, int nof_prb, int cell_id, lte_cp_t cp);
LIBLTE_API void pbch_free(pbch_t *q);
LIBLTE_API int pbch_decode(pbch_t *q, cf_t *slot1_symbols, cf_t *ce[MAX_PORTS_CTRL], float ebno, pbch_mib_t *mib);
LIBLTE_API void pbch_encode(pbch_t *q, pbch_mib_t *mib, cf_t *slot1_symbols[MAX_PORTS_CTRL], int nof_ports);
LIBLTE_API void pbch_decode_reset(pbch_t *q);
void pbch_mib_fprint(FILE *stream, pbch_mib_t *mib);
bool pbch_exists(int nframe, int nslot);
int pbch_put(cf_t *pbch, cf_t *slot1_data, int nof_prb, lte_cp_t cp, int cell_id);
int pbch_get(cf_t *pbch, cf_t *slot1_data, int nof_prb, lte_cp_t cp, int cell_id);
LIBLTE_API void pbch_mib_fprint(FILE *stream, pbch_mib_t *mib);
LIBLTE_API bool pbch_exists(int nframe, int nslot);
LIBLTE_API int pbch_put(cf_t *pbch, cf_t *slot1_data, int nof_prb, lte_cp_t cp, int cell_id);
LIBLTE_API int pbch_get(cf_t *pbch, cf_t *slot1_data, int nof_prb, lte_cp_t cp, int cell_id);
#endif
#endif // PBCH_

19
lte/include/lte/phch/pcfich.h
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@ -29,6 +29,7 @@
#ifndef PCFICH_
#define PCFICH_
#include "lte/config.h"
#include "lte/common/base.h"
#include "lte/mimo/precoding.h"
#include "lte/mimo/layermap.h"
@ -44,7 +45,7 @@
typedef _Complex float cf_t;
/* PCFICH object */
typedef struct {
typedef struct LIBLTE_API {
int cell_id;
lte_cp_t cp;
int nof_symbols;
@ -70,13 +71,13 @@ typedef struct {
}pcfich_t;
int pcfich_init(pcfich_t *q, regs_t *regs, int cell_id, int nof_prb, int nof_tx_ports, lte_cp_t cp);
void pcfich_free(pcfich_t *q);
int pcfich_decode(pcfich_t *q, cf_t *slot_symbols, cf_t *ce[MAX_PORTS_CTRL], int nsubframe, int *cfi, int *distance);
int pcfich_encode(pcfich_t *q, int cfi, cf_t *slot_symbols[MAX_PORTS_CTRL], int nsubframe);
LIBLTE_API int pcfich_init(pcfich_t *q, regs_t *regs, int cell_id, int nof_prb, int nof_tx_ports, lte_cp_t cp);
LIBLTE_API void pcfich_free(pcfich_t *q);
LIBLTE_API int pcfich_decode(pcfich_t *q, cf_t *slot_symbols, cf_t *ce[MAX_PORTS_CTRL], int nsubframe, int *cfi, int *distance);
LIBLTE_API int pcfich_encode(pcfich_t *q, int cfi, cf_t *slot_symbols[MAX_PORTS_CTRL], int nsubframe);
bool pcfich_exists(int nframe, int nslot);
int pcfich_put(regs_t *h, cf_t *pcfich, cf_t *slot_data);
int pcfich_get(regs_t *h, cf_t *pcfich, cf_t *slot_data);
LIBLTE_API bool pcfich_exists(int nframe, int nslot);
LIBLTE_API int pcfich_put(regs_t *h, cf_t *pcfich, cf_t *slot_data);
LIBLTE_API int pcfich_get(regs_t *h, cf_t *pcfich, cf_t *slot_data);
#endif
#endif // PCFICH_

33
lte/include/lte/phch/pdcch.h
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@ -29,6 +29,7 @@
#ifndef PDCCH_
#define PDCCH_
#include "lte/config.h"
#include "lte/common/base.h"
#include "lte/mimo/precoding.h"
#include "lte/mimo/layermap.h"
@ -54,13 +55,13 @@ typedef enum {
* A search mode is indicated by higher layers to look for SI/C/RA-RNTI
* DCI messages as defined in Section 7.1 of 36.213
*/
typedef struct {
typedef struct LIBLTE_API {
int nof_candidates;
dci_candidate_t *candidates[NSUBFRAMES_X_FRAME];
}pdcch_search_t;
/* PDCCH object */
typedef struct {
typedef struct LIBLTE_API {
int cell_id;
lte_cp_t cp;
int nof_prb;
@ -91,11 +92,11 @@ typedef struct {
crc_t crc;
}pdcch_t;
int pdcch_init(pdcch_t *q, regs_t *regs, int nof_prb, int nof_ports, int cell_id, lte_cp_t cp);
void pdcch_free(pdcch_t *q);
LIBLTE_API int pdcch_init(pdcch_t *q, regs_t *regs, int nof_prb, int nof_ports, int cell_id, lte_cp_t cp);
LIBLTE_API void pdcch_free(pdcch_t *q);
/* Encoding functions */
int pdcch_encode(pdcch_t *q, dci_t *dci, cf_t *slot1_symbols[MAX_PORTS_CTRL], int nsubframe);
LIBLTE_API int pdcch_encode(pdcch_t *q, dci_t *dci, cf_t *slot1_symbols[MAX_PORTS_CTRL], int nsubframe);
/* Decoding functions */
@ -105,22 +106,22 @@ int pdcch_encode(pdcch_t *q, dci_t *dci, cf_t *slot1_symbols[MAX_PORTS_CTRL], in
* b) call pdcch_extract_llr() and then call pdcch_decode_si/ue/ra
*/
int pdcch_decode(pdcch_t *q, cf_t *slot1_symbols, cf_t *ce[MAX_PORTS_CTRL],
LIBLTE_API int pdcch_decode(pdcch_t *q, cf_t *slot1_symbols, cf_t *ce[MAX_PORTS_CTRL],
dci_t *dci, int nsubframe, float ebno);
int pdcch_extract_llr(pdcch_t *q, cf_t *slot1_symbols, cf_t *ce[MAX_PORTS_CTRL], float *llr,
LIBLTE_API int pdcch_extract_llr(pdcch_t *q, cf_t *slot1_symbols, cf_t *ce[MAX_PORTS_CTRL], float *llr,
int nsubframe, float ebno);
void pdcch_init_search_si(pdcch_t *q);
void pdcch_set_search_si(pdcch_t *q);
int pdcch_decode_si(pdcch_t *q, float *llr, dci_t *dci);
LIBLTE_API void pdcch_init_search_si(pdcch_t *q);
LIBLTE_API void pdcch_set_search_si(pdcch_t *q);
LIBLTE_API int pdcch_decode_si(pdcch_t *q, float *llr, dci_t *dci);
void pdcch_init_search_ue(pdcch_t *q, unsigned short c_rnti);
void pdcch_set_search_ue(pdcch_t *q);
int pdcch_decode_ue(pdcch_t *q, float *llr, dci_t *dci, int nsubframe);
LIBLTE_API void pdcch_init_search_ue(pdcch_t *q, unsigned short c_rnti);
LIBLTE_API void pdcch_set_search_ue(pdcch_t *q);
LIBLTE_API int pdcch_decode_ue(pdcch_t *q, float *llr, dci_t *dci, int nsubframe);
void pdcch_init_search_ra(pdcch_t *q, unsigned short ra_rnti);
void pdcch_set_search_ra(pdcch_t *q);
int pdcch_decode_ra(pdcch_t *q, float *llr, dci_t *dci);
LIBLTE_API void pdcch_init_search_ra(pdcch_t *q, unsigned short ra_rnti);
LIBLTE_API void pdcch_set_search_ra(pdcch_t *q);
LIBLTE_API int pdcch_decode_ra(pdcch_t *q, float *llr, dci_t *dci);
#endif

23
lte/include/lte/phch/phich.h
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@ -29,6 +29,7 @@
#ifndef PHICH_
#define PHICH_
#include "lte/config.h"
#include "lte/common/base.h"
#include "lte/mimo/precoding.h"
#include "lte/mimo/layermap.h"
@ -53,7 +54,7 @@ typedef _Complex float cf_t;
#define PHICH_EXT_NSF 2
/* phich object */
typedef struct {
typedef struct LIBLTE_API {
lte_cp_t cp;
int nof_prb;
int nof_tx_ports;
@ -79,18 +80,18 @@ typedef struct {
}phich_t;
int phich_init(phich_t *q, regs_t *regs, int cell_id, int nof_prb, int nof_tx_ports, lte_cp_t cp);
void phich_free(phich_t *q);
int phich_decode(phich_t *q, cf_t *slot_symbols, cf_t *ce[MAX_PORTS_CTRL],
LIBLTE_API int phich_init(phich_t *q, regs_t *regs, int cell_id, int nof_prb, int nof_tx_ports, lte_cp_t cp);
LIBLTE_API void phich_free(phich_t *q);
LIBLTE_API int phich_decode(phich_t *q, cf_t *slot_symbols, cf_t *ce[MAX_PORTS_CTRL],
int ngroup, int nseq, int nsubframe, char *ack, int *distance);
int phich_encode(phich_t *q, char ack, int ngroup, int nseq, int nsubframe,
LIBLTE_API int phich_encode(phich_t *q, char ack, int ngroup, int nseq, int nsubframe,
cf_t *slot_symbols[MAX_PORTS_CTRL]);
void phich_reset(phich_t *q, cf_t *slot_symbols[MAX_PORTS_CTRL]);
int phich_ngroups(phich_t *q);
bool phich_exists(int nframe, int nslot);
int phich_put(regs_t *h, cf_t *phich, cf_t *slot_data);
int phich_get(regs_t *h, cf_t *phich, cf_t *slot_data);
LIBLTE_API void phich_reset(phich_t *q, cf_t *slot_symbols[MAX_PORTS_CTRL]);
LIBLTE_API int phich_ngroups(phich_t *q);
LIBLTE_API bool phich_exists(int nframe, int nslot);
LIBLTE_API int phich_put(regs_t *h, cf_t *phich, cf_t *slot_data);
LIBLTE_API int phich_get(regs_t *h, cf_t *phich, cf_t *slot_data);
#endif
#endif // PHICH_

74
lte/include/lte/phch/ra.h
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@ -31,6 +31,8 @@
#include <stdint.h>
#include <stdbool.h>
#include "lte/config.h"
/** Structures and utility functions for DL/UL resource
* allocation.
*/
@ -39,7 +41,7 @@ typedef enum {
MOD_NULL = 0, BPSK = 1, QPSK = 2, QAM16 = 4, QAM64 = 16
} ra_mod_t;
typedef struct {
typedef struct LIBLTE_API {
ra_mod_t mod; // By default, mod = MOD_NULL and the mcs_idx value is taken by the packing functions
// otherwise mod + tbs values are used to generate the mcs_idx automatically.
uint8_t tbs_idx;
@ -53,17 +55,17 @@ typedef enum {
alloc_type0 = 0, alloc_type1 = 1, alloc_type2 = 2
}ra_type_t;
typedef struct {
typedef struct LIBLTE_API {
uint32_t rbg_bitmask;
}ra_type0_t;
typedef struct {
typedef struct LIBLTE_API {
uint32_t vrb_bitmask;
uint8_t rbg_subset;
bool shift;
}ra_type1_t;
typedef struct {
typedef struct LIBLTE_API {
uint32_t riv; // if L_crb==0, DCI message packer will take this value directly
uint16_t L_crb;
uint16_t RB_start;
@ -72,7 +74,7 @@ typedef struct {
enum {t2_loc = 0, t2_dist = 1} mode;
}ra_type2_t;
typedef struct {
typedef struct LIBLTE_API {
unsigned short rnti;
ra_type_t alloc_type;
union {
@ -86,7 +88,7 @@ typedef struct {
bool ndi;
} ra_pdsch_t;
typedef struct {
typedef struct LIBLTE_API {
/* 36.213 Table 8.4-2: hop_half is 0 for < 10 Mhz and 10 for > 10 Mh.
* hop_quart is 00 for > 10 Mhz and hop_quart_neg is 01 for > 10 Mhz.
*/
@ -107,50 +109,50 @@ typedef struct {
} ra_pusch_t;
typedef struct {
typedef struct LIBLTE_API {
uint8_t prb_idx[110];
int nof_prb;
}ra_prb_slot_t;
typedef struct {
typedef struct LIBLTE_API {
ra_prb_slot_t slot1;
ra_prb_slot_t slot2;
bool is_dist;
}ra_prb_t;
void ra_prb_fprint(FILE *f, ra_prb_slot_t *prb);
int ra_prb_get_dl(ra_prb_t *prb, ra_pdsch_t *ra, int nof_prb);
int ra_prb_get_ul(ra_prb_slot_t *prb, ra_pusch_t *ra, int nof_prb);
int ra_nprb_dl(ra_pdsch_t *ra, int nof_prb);
int ra_nprb_ul(ra_pusch_t *ra, int nof_prb);
LIBLTE_API void ra_prb_fprint(FILE *f, ra_prb_slot_t *prb);
LIBLTE_API int ra_prb_get_dl(ra_prb_t *prb, ra_pdsch_t *ra, int nof_prb);
LIBLTE_API int ra_prb_get_ul(ra_prb_slot_t *prb, ra_pusch_t *ra, int nof_prb);
LIBLTE_API int ra_nprb_dl(ra_pdsch_t *ra, int nof_prb);
LIBLTE_API int ra_nprb_ul(ra_pusch_t *ra, int nof_prb);
uint8_t ra_mcs_to_table_idx(ra_mcs_t *mcs);
int ra_mcs_from_idx_dl(uint8_t idx, ra_mcs_t *mcs);
int ra_mcs_from_idx_ul(uint8_t idx, ra_mcs_t *mcs);
int ra_tbs_from_idx_format1c(uint8_t tbs_idx);
int ra_tbs_to_table_idx_format1c(int tbs);
int ra_tbs_from_idx(uint8_t tbs_idx, int n_prb);
int ra_tbs_to_table_idx(int tbs, int n_prb);
LIBLTE_API uint8_t ra_mcs_to_table_idx(ra_mcs_t *mcs);
LIBLTE_API int ra_mcs_from_idx_dl(uint8_t idx, ra_mcs_t *mcs);
LIBLTE_API int ra_mcs_from_idx_ul(uint8_t idx, ra_mcs_t *mcs);
LIBLTE_API int ra_tbs_from_idx_format1c(uint8_t tbs_idx);
LIBLTE_API int ra_tbs_to_table_idx_format1c(int tbs);
LIBLTE_API int ra_tbs_from_idx(uint8_t tbs_idx, int n_prb);
LIBLTE_API int ra_tbs_to_table_idx(int tbs, int n_prb);
uint8_t ra_mcs_to_table_idx(ra_mcs_t *mcs);
int ra_mcs_from_idx_dl(uint8_t idx, ra_mcs_t *mcs);
int ra_mcs_from_idx_ul(uint8_t idx, ra_mcs_t *mcs);
LIBLTE_API uint8_t ra_mcs_to_table_idx(ra_mcs_t *mcs);
LIBLTE_API int ra_mcs_from_idx_dl(uint8_t idx, ra_mcs_t *mcs);
LIBLTE_API int ra_mcs_from_idx_ul(uint8_t idx, ra_mcs_t *mcs);
char *ra_mod_string(ra_mod_t mod);
LIBLTE_API char *ra_mod_string(ra_mod_t mod);
int ra_type0_P(int nof_prb);
LIBLTE_API int ra_type0_P(int nof_prb);
uint32_t ra_type2_to_riv(uint16_t L_crb, uint16_t RB_start, int nof_prb);
void ra_type2_from_riv(uint32_t riv, uint16_t *L_crb, uint16_t *RB_start, int nof_prb, int nof_vrb);
int ra_type2_n_vrb_dl(int nof_prb, bool ngap_is_1);
int ra_type2_n_rb_step(int nof_prb);
int ra_type2_ngap(int nof_prb, bool ngap_is_1);
int ra_type1_N_rb(int nof_prb);
LIBLTE_API uint32_t ra_type2_to_riv(uint16_t L_crb, uint16_t RB_start, int nof_prb);
LIBLTE_API void ra_type2_from_riv(uint32_t riv, uint16_t *L_crb, uint16_t *RB_start, int nof_prb, int nof_vrb);
LIBLTE_API int ra_type2_n_vrb_dl(int nof_prb, bool ngap_is_1);
LIBLTE_API int ra_type2_n_rb_step(int nof_prb);
LIBLTE_API int ra_type2_ngap(int nof_prb, bool ngap_is_1);
LIBLTE_API int ra_type1_N_rb(int nof_prb);
void ra_pdsch_set_mcs_index(ra_pdsch_t *ra, uint8_t mcs_idx);
void ra_pdsch_set_mcs(ra_pdsch_t *ra, ra_mod_t mod, uint8_t tbs_idx);
void ra_pdsch_fprint(FILE *f, ra_pdsch_t *ra, int nof_prb);
void ra_pusch_fprint(FILE *f, ra_pusch_t *ra, int nof_prb);
LIBLTE_API void ra_pdsch_set_mcs_index(ra_pdsch_t *ra, uint8_t mcs_idx);
LIBLTE_API void ra_pdsch_set_mcs(ra_pdsch_t *ra, ra_mod_t mod, uint8_t tbs_idx);
LIBLTE_API void ra_pdsch_fprint(FILE *f, ra_pdsch_t *ra, int nof_prb);
LIBLTE_API void ra_pusch_fprint(FILE *f, ra_pusch_t *ra, int nof_prb);
#endif /* RB_ALLOC_H_ */
#endif // RB_ALLOC_H_

45
lte/include/lte/phch/regs.h
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@ -30,6 +30,7 @@
#define _REGS_H_
#include <stdbool.h>
#include "lte/config.h"
#include "lte/common/base.h"
#define REGS_PHICH_NSYM 12
@ -43,19 +44,19 @@
typedef _Complex float cf_t;
typedef struct {
typedef struct LIBLTE_API {
int k[4];
int k0;
int l;
bool assigned;
}regs_reg_t;
typedef struct {
typedef struct LIBLTE_API {
int nof_regs;
regs_reg_t **regs;
}regs_ch_t;
typedef struct {
typedef struct LIBLTE_API {
int cell_id;
int nof_prb;
int max_ctrl_symbols;
@ -73,28 +74,28 @@ typedef struct {
regs_reg_t *regs;
}regs_t;
int regs_init(regs_t *h, int cell_id, int nof_prb, int nof_ports,
LIBLTE_API int regs_init(regs_t *h, int cell_id, int nof_prb, int nof_ports,
phich_resources_t phich_res, phich_length_t phich_len, lte_cp_t cp);
void regs_free(regs_t *h);
int regs_set_cfi(regs_t *h, int nof_ctrl_symbols);
LIBLTE_API void regs_free(regs_t *h);
LIBLTE_API int regs_set_cfi(regs_t *h, int nof_ctrl_symbols);
int regs_put_reg(regs_reg_t *reg, cf_t *reg_data, cf_t *slot_symbols, int nof_prb);
int regs_add_reg(regs_reg_t *reg, cf_t *reg_data, cf_t *slot_symbols, int nof_prb);
int regs_get_reg(regs_reg_t *reg, cf_t *slot_symbols, cf_t *reg_data, int nof_prb);
int regs_reset_reg(regs_reg_t *reg, cf_t *slot_symbols, int nof_prb);
LIBLTE_API int regs_put_reg(regs_reg_t *reg, cf_t *reg_data, cf_t *slot_symbols, int nof_prb);
LIBLTE_API int regs_add_reg(regs_reg_t *reg, cf_t *reg_data, cf_t *slot_symbols, int nof_prb);
LIBLTE_API int regs_get_reg(regs_reg_t *reg, cf_t *slot_symbols, cf_t *reg_data, int nof_prb);
LIBLTE_API int regs_reset_reg(regs_reg_t *reg, cf_t *slot_symbols, int nof_prb);
int regs_pcfich_nregs(regs_t *h);
int regs_pcfich_put(regs_t *h, cf_t pcfich_symbols[REGS_PCFICH_NSYM], cf_t *slot_symbols);
int regs_pcfich_get(regs_t *h, cf_t *slot_symbols, cf_t pcfich_symbols[REGS_PCFICH_NSYM]);
LIBLTE_API int regs_pcfich_nregs(regs_t *h);
LIBLTE_API int regs_pcfich_put(regs_t *h, cf_t pcfich_symbols[REGS_PCFICH_NSYM], cf_t *slot_symbols);
LIBLTE_API int regs_pcfich_get(regs_t *h, cf_t *slot_symbols, cf_t pcfich_symbols[REGS_PCFICH_NSYM]);
int regs_phich_nregs(regs_t *h);
int regs_phich_add(regs_t *h, cf_t phich_symbols[REGS_PHICH_NSYM], int ngroup, cf_t *slot_symbols);
int regs_phich_get(regs_t *h, cf_t *slot_symbols, cf_t phich_symbols[REGS_PHICH_NSYM], int ngroup);
int regs_phich_ngroups(regs_t *h);
int regs_phich_reset(regs_t *h, cf_t *slot_symbols);
LIBLTE_API int regs_phich_nregs(regs_t *h);
LIBLTE_API int regs_phich_add(regs_t *h, cf_t phich_symbols[REGS_PHICH_NSYM], int ngroup, cf_t *slot_symbols);
LIBLTE_API int regs_phich_get(regs_t *h, cf_t *slot_symbols, cf_t phich_symbols[REGS_PHICH_NSYM], int ngroup);
LIBLTE_API int regs_phich_ngroups(regs_t *h);
LIBLTE_API int regs_phich_reset(regs_t *h, cf_t *slot_symbols);
int regs_pdcch_nregs(regs_t *h);
int regs_pdcch_put(regs_t *h, cf_t *pdcch_symbols, cf_t *slot_symbols);
int regs_pdcch_get(regs_t *h, cf_t *slot_symbols, cf_t *pdcch_symbols);
LIBLTE_API int regs_pdcch_nregs(regs_t *h);
LIBLTE_API int regs_pdcch_put(regs_t *h, cf_t *pdcch_symbols, cf_t *slot_symbols);
LIBLTE_API int regs_pdcch_get(regs_t *h, cf_t *slot_symbols, cf_t *pdcch_symbols);
#endif
#endif // REGS_H_

12
lte/include/lte/resampling/interp.h
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@ -25,10 +25,16 @@
*
*/
#ifndef INTERP_H
#define INTERP_H_
#include "lte/config.h"
typedef _Complex float cf_t;
void interp_linear_offset(cf_t *input, cf_t *output, int M, int len, int off_st, int off_end);
void interp_linear(cf_t *input, cf_t *output, int M, int len);
void interp_linear_f(float *input, float *output, int M, int len);
LIBLTE_API void interp_linear_offset(cf_t *input, cf_t *output, int M, int len, int off_st, int off_end);
LIBLTE_API void interp_linear(cf_t *input, cf_t *output, int M, int len);
LIBLTE_API void interp_linear_f(float *input, float *output, int M, int len);
#endif // INTERP_H

8
lte/include/lte/resampling/resample_arb.h
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@ -31,19 +31,21 @@
#include <stdint.h>
#include <complex.h>
#include "lte/config.h"
typedef _Complex float cf_t;
#define RESAMPLE_ARB_N 32 // Polyphase filter rows
#define RESAMPLE_ARB_M 8 // Polyphase filter columns
typedef struct {
typedef struct LIBLTE_API {
float rate; // Resample rate
float step; // Step increment through filter
float acc; // Index into filter
cf_t reg[RESAMPLE_ARB_M]; // Our window of samples
}resample_arb_t;
void resample_arb_init(resample_arb_t *q, float rate);
int resample_arb_compute(resample_arb_t *q, cf_t *input, cf_t *output, int n_in);
LIBLTE_API void resample_arb_init(resample_arb_t *q, float rate);
LIBLTE_API int resample_arb_compute(resample_arb_t *q, cf_t *input, cf_t *output, int n_in);
#endif //RESAMPLE_ARB_

19
lte/include/lte/scrambling/scrambling.h
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@ -29,20 +29,21 @@
#ifndef SCRAMBLING_
#define SCRAMBLING_
#include "lte/config.h"
#include "lte/common/sequence.h"
#include "lte/common/base.h"
typedef _Complex float cf_t;
/* Scrambling has no state */
void scrambling_b(sequence_t *s, char *data);
void scrambling_b_offset(sequence_t *s, char *data, int offset, int len);
LIBLTE_API void scrambling_b(sequence_t *s, char *data);
LIBLTE_API void scrambling_b_offset(sequence_t *s, char *data, int offset, int len);
void scrambling_f(sequence_t *s, float *data);
void scrambling_f_offset(sequence_t *s, float *data, int offset, int len);
LIBLTE_API void scrambling_f(sequence_t *s, float *data);
LIBLTE_API void scrambling_f_offset(sequence_t *s, float *data, int offset, int len);
void scrambling_c(sequence_t *s, cf_t *data);
void scrambling_c_offset(sequence_t *s, cf_t *data, int offset, int len);
LIBLTE_API void scrambling_c(sequence_t *s, cf_t *data);
LIBLTE_API void scrambling_c_offset(sequence_t *s, cf_t *data, int offset, int len);
/* High-level API */
@ -55,11 +56,11 @@ void scrambling_c_offset(sequence_t *s, cf_t *data, int offset, int len);
#define SCRAMBLING_PMCH 4
#define SCRAMBLING_PUCCH 5
typedef struct {
typedef struct LIBLTE_API {
sequence_t seq[NSUBFRAMES_X_FRAME];
}scrambling_t;
typedef struct {
typedef struct LIBLTE_API {
scrambling_t obj;
struct scrambling_init {
int hard;
@ -79,4 +80,4 @@ typedef struct {
int out_len;
}scrambling_hl;
#endif
#endif // SCRAMBLING_

18
lte/include/lte/sync/cfo.h
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@ -26,11 +26,13 @@
*/
#ifndef _cfo_
#define _cfo_
#ifndef CFO_
#define CFO_
#include <complex.h>
#include "lte/config.h"
typedef _Complex float cf_t;
/** If the frequency is changed more than the tolerance, a new table is generated */
@ -38,7 +40,7 @@ typedef _Complex float cf_t;
#define CFO_CEXPTAB_SIZE 4096
typedef struct {
typedef struct LIBLTE_API {
float last_freq;
float tol;
int nsamples;
@ -46,10 +48,10 @@ typedef struct {
cf_t *cur_cexp;
}cfo_t;
int cfo_init(cfo_t *h, int nsamples);
void cfo_free(cfo_t *h);
LIBLTE_API int cfo_init(cfo_t *h, int nsamples);
LIBLTE_API void cfo_free(cfo_t *h);
void cfo_set_tol(cfo_t *h, float tol);
void cfo_correct(cfo_t *h, cf_t *x, float freq);
LIBLTE_API void cfo_set_tol(cfo_t *h, float tol);
LIBLTE_API void cfo_correct(cfo_t *h, cf_t *x, float freq);
#endif
#endif // CFO_

49
lte/include/lte/sync/pss.h
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@ -32,6 +32,7 @@
#include <stdint.h>
#include <stdbool.h>
#include "lte/config.h"
#include "lte/common/base.h"
#include "lte/utils/convolution.h"
@ -60,7 +61,7 @@ typedef _Complex float cf_t; /* this is only a shortcut */
/* Low-level API */
typedef struct {
typedef struct LIBLTE_API {
#ifdef CONVOLUTION_FFT
conv_fft_cc_t conv_fft;
@ -87,39 +88,29 @@ typedef struct {
typedef enum { PSS_TX, PSS_RX } pss_direction_t;
/* Basic functionality */
LIBLTE_API int pss_synch_init(pss_synch_t *q, int frame_size);
LIBLTE_API void pss_synch_free(pss_synch_t *q);
LIBLTE_API int pss_generate(cf_t *signal, int N_id_2);
LIBLTE_API void pss_put_slot(cf_t *pss_signal, cf_t *slot, int nof_prb, lte_cp_t cp);
int pss_synch_init(pss_synch_t *q, int frame_size);
void pss_synch_free(pss_synch_t *q);
int pss_generate(cf_t *signal, int N_id_2);
void pss_put_slot(cf_t *pss_signal, cf_t *slot, int nof_prb, lte_cp_t cp);
int pss_synch_set_N_id_2(pss_synch_t *q, int N_id_2);
int pss_synch_find_pss(pss_synch_t *q, cf_t *input, float *corr_peak_value, float *corr_mean_value);
float pss_synch_cfo_compute(pss_synch_t* q, cf_t *pss_recv);
LIBLTE_API int pss_synch_set_N_id_2(pss_synch_t *q, int N_id_2);
LIBLTE_API int pss_synch_find_pss(pss_synch_t *q, cf_t *input, float *corr_peak_value, float *corr_mean_value);
LIBLTE_API float pss_synch_cfo_compute(pss_synch_t* q, cf_t *pss_recv);
/* Automatic frame management functions (for periodic calling) */
int pss_synch_periodic(pss_synch_t *q, cf_t *input, cf_t *output, int nsamples);
void pss_synch_set_timeout(pss_synch_t *q, int nof_frames);
void pss_synch_set_threshold(pss_synch_t *q, float threshold);
void pss_synch_set_cfo_mode(pss_synch_t *q, bool cfo_auto);
float pss_synch_get_cfo(pss_synch_t *q);
int pss_synch_get_frame_start_idx(pss_synch_t *q);
LIBLTE_API int pss_synch_periodic(pss_synch_t *q, cf_t *input, cf_t *output, int nsamples);
LIBLTE_API void pss_synch_set_timeout(pss_synch_t *q, int nof_frames);
LIBLTE_API void pss_synch_set_threshold(pss_synch_t *q, float threshold);
LIBLTE_API void pss_synch_set_cfo_mode(pss_synch_t *q, bool cfo_auto);
LIBLTE_API float pss_synch_get_cfo(pss_synch_t *q);
LIBLTE_API int pss_synch_get_frame_start_idx(pss_synch_t *q);
/* High-level API */
typedef struct {
typedef struct LIBLTE_API {
pss_synch_t obj;
struct pss_synch_init {
int frame_size; // if 0, 2048
@ -139,9 +130,9 @@ typedef struct {
#define DEFAULT_FRAME_SIZE 2048
int pss_synch_initialize(pss_synch_hl* h);
int pss_synch_work(pss_synch_hl* hl);
int pss_synch_stop(pss_synch_hl* hl);
LIBLTE_API int pss_synch_initialize(pss_synch_hl* h);
LIBLTE_API int pss_synch_work(pss_synch_hl* hl);
LIBLTE_API int pss_synch_stop(pss_synch_hl* hl);
#endif
#endif // PSS_

8
lte/include/lte/sync/sfo.h
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@ -29,7 +29,9 @@
#ifndef SFO_
#define SFO_
float sfo_estimate(int *t0, int len, float period);
float sfo_estimate_period(int *t0, int *t, int len, float period);
#include "lte/config.h"
#endif
LIBLTE_API float sfo_estimate(int *t0, int len, float period);
LIBLTE_API float sfo_estimate_period(int *t0, int *t, int len, float period);
#endif // SFO_

37
lte/include/lte/sync/sss.h
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@ -32,6 +32,7 @@
#include <stdint.h>
#include <stdbool.h>
#include "lte/config.h"
#include "lte/common/base.h"
#include "lte/utils/dft.h"
@ -66,7 +67,7 @@ struct fc_tables {
/* Low-level API */
typedef struct {
typedef struct LIBLTE_API {
dft_plan_t dftp_input;
@ -81,27 +82,27 @@ typedef struct {
/* Basic functionality */
int sss_synch_init(sss_synch_t *q);
void sss_synch_free(sss_synch_t *q);
void sss_generate(float *signal0, float *signal5, int cell_id);
void sss_put_slot(float *sss, cf_t *symbol, int nof_prb, lte_cp_t cp);
LIBLTE_API int sss_synch_init(sss_synch_t *q);
LIBLTE_API void sss_synch_free(sss_synch_t *q);
LIBLTE_API void sss_generate(float *signal0, float *signal5, int cell_id);
LIBLTE_API void sss_put_slot(float *sss, cf_t *symbol, int nof_prb, lte_cp_t cp);
int sss_synch_set_N_id_2(sss_synch_t *q, int N_id_2);
LIBLTE_API int sss_synch_set_N_id_2(sss_synch_t *q, int N_id_2);
void sss_synch_m0m1(sss_synch_t *q, cf_t *input, int *m0, float *m0_value,
LIBLTE_API void sss_synch_m0m1(sss_synch_t *q, cf_t *input, int *m0, float *m0_value,
int *m1, float *m1_value);
int sss_synch_subframe(int m0, int m1);
int sss_synch_N_id_1(sss_synch_t *q, int m0, int m1);
LIBLTE_API int sss_synch_subframe(int m0, int m1);
LIBLTE_API int sss_synch_N_id_1(sss_synch_t *q, int m0, int m1);
int sss_synch_frame(sss_synch_t *q, cf_t *input, int *subframe_idx, int *N_id_1);
void sss_synch_set_threshold(sss_synch_t *q, float threshold);
void sss_synch_set_symbol_sz(sss_synch_t *q, int symbol_sz);
void sss_synch_set_subframe_sz(sss_synch_t *q, int subframe_sz);
LIBLTE_API int sss_synch_frame(sss_synch_t *q, cf_t *input, int *subframe_idx, int *N_id_1);
LIBLTE_API void sss_synch_set_threshold(sss_synch_t *q, float threshold);
LIBLTE_API void sss_synch_set_symbol_sz(sss_synch_t *q, int symbol_sz);
LIBLTE_API void sss_synch_set_subframe_sz(sss_synch_t *q, int subframe_sz);
/* High-level API */
typedef struct {
typedef struct LIBLTE_API {
sss_synch_t obj;
struct sss_synch_init {
int N_id_2;
@ -121,9 +122,9 @@ typedef struct {
#define DEFAULT_FRAME_SIZE 2048
int sss_synch_initialize(sss_synch_hl* h);
int sss_synch_work(sss_synch_hl* hl);
int sss_synch_stop(sss_synch_hl* hl);
LIBLTE_API int sss_synch_initialize(sss_synch_hl* h);
LIBLTE_API int sss_synch_work(sss_synch_hl* hl);
LIBLTE_API int sss_synch_stop(sss_synch_hl* hl);
#endif
#endif // SSS_

37
lte/include/lte/sync/sync.h
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@ -31,6 +31,7 @@
#include <stdbool.h>
#include "lte/config.h"
#include "pss.h"
#include "sss.h"
#include "sfo.h"
@ -48,7 +49,7 @@
enum sync_pss_det { ABSOLUTE, PEAK_MEAN};
typedef struct {
typedef struct LIBLTE_API {
pss_synch_t pss[3]; // One for each N_id_2
sss_synch_t sss[3]; // One for each N_id_2
enum sync_pss_det pss_mode;
@ -65,41 +66,41 @@ typedef struct {
}sync_t;
int sync_init(sync_t *q, int frame_size);
void sync_free(sync_t *q);
LIBLTE_API int sync_init(sync_t *q, int frame_size);
LIBLTE_API void sync_free(sync_t *q);
/* Runs the synchronization algorithm. input signal must be sampled at 1.92 MHz and should be frame_size long at least */
int sync_run(sync_t *q, cf_t *input);
LIBLTE_API int sync_run(sync_t *q, cf_t *input);
/* Sets the threshold for peak comparison */
void sync_set_threshold(sync_t *q, float threshold);
LIBLTE_API void sync_set_threshold(sync_t *q, float threshold);
/* Set peak comparison to absolute value */
void sync_pss_det_absolute(sync_t *q);
LIBLTE_API void sync_pss_det_absolute(sync_t *q);
/* Set peak comparison to relative to the mean */
void sync_pss_det_peak_to_avg(sync_t *q);
LIBLTE_API void sync_pss_det_peak_to_avg(sync_t *q);
/* Forces the synchronizer to check one N_id_2 PSS sequence only (useful for tracking mode) */
void sync_force_N_id_2(sync_t *q, int force_N_id_2);
LIBLTE_API void sync_force_N_id_2(sync_t *q, int force_N_id_2);
/* Forces the synchronizer to skip CP detection (useful for tracking mode) */
void sync_force_cp(sync_t *q, lte_cp_t cp);
LIBLTE_API void sync_force_cp(sync_t *q, lte_cp_t cp);
/* Enables/Disables SSS detection (useful for tracking mode) */
void sync_sss_en(sync_t *q, bool enabled);
LIBLTE_API void sync_sss_en(sync_t *q, bool enabled);
/* Gets the slot id (0 or 10) */
int sync_get_slot_id(sync_t *q);
LIBLTE_API int sync_get_slot_id(sync_t *q);
/* Gets the last peak-to-average ratio */
float sync_get_peak_to_avg(sync_t *q);
LIBLTE_API float sync_get_peak_to_avg(sync_t *q);
/* Gets the N_id_2 from the last call to synch_run() */
int sync_get_N_id_2(sync_t *q);
LIBLTE_API int sync_get_N_id_2(sync_t *q);
/* Gets the N_id_1 from the last call to synch_run() */
int sync_get_N_id_1(sync_t *q);
LIBLTE_API int sync_get_N_id_1(sync_t *q);
/* Gets the Physical CellId from the last call to synch_run() */
int sync_get_cell_id(sync_t *q);
LIBLTE_API int sync_get_cell_id(sync_t *q);
/* Gets the CFO estimation from the last call to synch_run() */
float sync_get_cfo(sync_t *q);
LIBLTE_API float sync_get_cfo(sync_t *q);
/* Gets the CP length estimation from the last call to synch_run() */
lte_cp_t sync_get_cp(sync_t *q);
LIBLTE_API lte_cp_t sync_get_cp(sync_t *q);
#endif
#endif // SYNC_

14
lte/include/lte/utils/bit.h
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@ -32,11 +32,13 @@
#include <stdint.h>
#include <stdio.h>
uint32_t bit_unpack(char **bits, int nof_bits);
void bit_pack(uint32_t value, char **bits, int nof_bits);
void bit_fprint(FILE *stream, char *bits, int nof_bits);
unsigned int bit_diff(char *x, char *y, int nbits);
int bit_count(unsigned int n);
#include "lte/config.h"
#endif
LIBLTE_API uint32_t bit_unpack(char **bits, int nof_bits);
LIBLTE_API void bit_pack(uint32_t value, char **bits, int nof_bits);
LIBLTE_API void bit_fprint(FILE *stream, char *bits, int nof_bits);
LIBLTE_API unsigned int bit_diff(char *x, char *y, int nbits);
LIBLTE_API int bit_count(unsigned int n);
#endif // BIT_

17
lte/include/lte/utils/cexptab.h
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@ -26,22 +26,23 @@
*/
#ifndef _cexptab_
#define _cexptab_
#ifndef CEXPTAB_
#define CEXPTAB_
#include <complex.h>
#include "lte/config.h"
typedef _Complex float cf_t;
typedef struct {
typedef struct LIBLTE_API {
int size;
cf_t *tab;
}cexptab_t;
int cexptab_init(cexptab_t *nco, int size);
void cexptab_free(cexptab_t *nco);
LIBLTE_API int cexptab_init(cexptab_t *nco, int size);
LIBLTE_API void cexptab_free(cexptab_t *nco);
void cexptab_gen(cexptab_t *nco, cf_t *x, float freq, int len);
void cexptab_gen_direct(cf_t *x, float freq, int len);
LIBLTE_API void cexptab_gen(cexptab_t *nco, cf_t *x, float freq, int len);
LIBLTE_API void cexptab_gen_direct(cf_t *x, float freq, int len);
#endif
#endif // CEXPTAB_

13
lte/include/lte/utils/convolution.h
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@ -29,9 +29,10 @@
#ifndef CONVOLUTION_H_
#define CONVOLUTION_H_
#include "lte/config.h"
#include "lte/utils/dft.h"
typedef struct {
typedef struct LIBLTE_API {
_Complex float *input_fft;
_Complex float *filter_fft;
_Complex float *output_fft;
@ -44,10 +45,10 @@ typedef struct {
dft_plan_t output_plan;
}conv_fft_cc_t;
int conv_fft_cc_init(conv_fft_cc_t *state, int input_len, int filter_len);
void conv_fft_cc_free(conv_fft_cc_t *state);
int conv_fft_cc_run(conv_fft_cc_t *state, _Complex float *input, _Complex float *filter, _Complex float *output);
LIBLTE_API int conv_fft_cc_init(conv_fft_cc_t *state, int input_len, int filter_len);
LIBLTE_API void conv_fft_cc_free(conv_fft_cc_t *state);
LIBLTE_API int conv_fft_cc_run(conv_fft_cc_t *state, _Complex float *input, _Complex float *filter, _Complex float *output);
int conv_cc(_Complex float *input, _Complex float *filter, _Complex float *output, int input_len, int filter_len);
LIBLTE_API int conv_cc(_Complex float *input, _Complex float *filter, _Complex float *output, int input_len, int filter_len);
#endif
#endif // CONVOLUTION_H_

11
lte/include/lte/utils/debug.h
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@ -29,17 +29,18 @@
#define DEBUG_H
#include <stdio.h>
#include "lte/config.h"
#define VERBOSE_DEBUG 2
#define VERBOSE_INFO 1
#define VERBOSE_NONE 0
#include <sys/time.h>
void get_time_interval(struct timeval * tdata);
LIBLTE_API void get_time_interval(struct timeval * tdata);
#ifndef DEBUG_DISABLED
extern int verbose;
LIBLTE_API extern int verbose;
#define VERBOSE_ISINFO() (verbose>=VERBOSE_INFO)
#define VERBOSE_ISDEBUG() (verbose>=VERBOSE_DEBUG)
@ -54,11 +55,11 @@ extern int verbose;
#define INFO(_fmt, ...) if (verbose >= VERBOSE_INFO) \
fprintf(stdout, "[INFO]: " _fmt, __VA_ARGS__)
#else
#else // DEBUG_DISABLED
#define DEBUG
#define INFO
#endif
#endif // DEBUG_DISABLED
#endif
#endif // DEBUG_H

34
lte/include/lte/utils/dft.h
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@ -30,6 +30,7 @@
#define DFT_H_
#include <fftw3.h>
#include "lte/config.h"
/* dft is a frontend to the fftw3 library. It facilitates the computation of complex or real DFT,
@ -55,7 +56,7 @@ typedef enum {
#define DFT_NORMALIZE 16
#define DFT_DC_OFFSET 32
typedef struct {
typedef struct LIBLTE_API {
int size;
int sign;
void *in;
@ -71,32 +72,31 @@ typedef float dft_r_t;
/* Create DFT plans */
int dft_plan(const int dft_points, dft_mode_t mode, dft_dir_t dir, dft_plan_t *plan);
int dft_plan_c2c(const int dft_points, dft_dir_t dir, dft_plan_t *plan);
int dft_plan_r2r(const int dft_points, dft_dir_t dir, dft_plan_t *plan);
int dft_plan_c2r(const int dft_points, dft_dir_t dir, dft_plan_t *plan);
void dft_plan_free(dft_plan_t *plan);
LIBLTE_API int dft_plan(const int dft_points, dft_mode_t mode, dft_dir_t dir, dft_plan_t *plan);
LIBLTE_API int dft_plan_c2c(const int dft_points, dft_dir_t dir, dft_plan_t *plan);
LIBLTE_API int dft_plan_r2r(const int dft_points, dft_dir_t dir, dft_plan_t *plan);
LIBLTE_API int dft_plan_c2r(const int dft_points, dft_dir_t dir, dft_plan_t *plan);
LIBLTE_API void dft_plan_free(dft_plan_t *plan);
/* Create a vector of DFT plans */
int dft_plan_vector(const int *dft_points, dft_mode_t *modes, dft_dir_t *dirs,
LIBLTE_API int dft_plan_vector(const int *dft_points, dft_mode_t *modes, dft_dir_t *dirs,
int nof_plans, dft_plan_t *plans);
int dft_plan_multi_c2c(const int *dft_points, dft_dir_t dir, int nof_plans,
LIBLTE_API int dft_plan_multi_c2c(const int *dft_points, dft_dir_t dir, int nof_plans,
dft_plan_t *plans);
int dft_plan_multi_c2r(const int *dft_points, dft_dir_t dir, int nof_plans,
LIBLTE_API int dft_plan_multi_c2r(const int *dft_points, dft_dir_t dir, int nof_plans,
dft_plan_t *plans);
int dft_plan_multi_r2r(const int *dft_points, dft_dir_t dir, int nof_plans,
LIBLTE_API int dft_plan_multi_r2r(const int *dft_points, dft_dir_t dir, int nof_plans,
dft_plan_t *plans);
void dft_plan_free_vector(dft_plan_t *plan, int nof_plans);
LIBLTE_API void dft_plan_free_vector(dft_plan_t *plan, int nof_plans);
/* Compute DFT */
void dft_run(dft_plan_t *plan, void *in, void *out);
void dft_run_c2c(dft_plan_t *plan, dft_c_t *in, dft_c_t *out);
void dft_run_r2r(dft_plan_t *plan, dft_r_t *in, dft_r_t *out);
void dft_run_c2r(dft_plan_t *plan, dft_c_t *in, dft_r_t *out);
LIBLTE_API void dft_run(dft_plan_t *plan, void *in, void *out);
LIBLTE_API void dft_run_c2c(dft_plan_t *plan, dft_c_t *in, dft_c_t *out);
LIBLTE_API void dft_run_r2r(dft_plan_t *plan, dft_r_t *in, dft_r_t *out);
LIBLTE_API void dft_run_c2r(dft_plan_t *plan, dft_c_t *in, dft_r_t *out);
#endif
#endif // DFT_H_

29
lte/include/lte/utils/matrix.h
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@ -25,24 +25,23 @@
*
*/
#include <stdio.h>
#ifndef MATRIX_
#define MATRIX_
typedef _Complex float cf_t;
#include <stdio.h>
#include "lte/config.h"
int matrix_init(void ***m, int sz_x, int sz_y, int elem_sz);
void matrix_free(void **q, int sz_x);
void matrix_bzero(void **q, int sz_x, int sz_y, int elem_sz);
void matrix_fprintf_cf(FILE *f, cf_t **q, int sz_x, int sz_y);
void matrix_fprintf_f(FILE *f, float **q, int sz_x, int sz_y);
void matrix_copy(void **dst, void **src, int sz_x, int sz_y, int elem_sz);
void matrix_dotprod_cf(cf_t **x, cf_t **y, cf_t **out, int sz_x, int sz_y);
void matrix_dotprod_float(float **x, float **y, float **out, int sz_x, int sz_y);
void matrix_dotprod_int(int **x, int **y, int **out, int sz_x, int sz_y);
typedef _Complex float cf_t;
#endif
LIBLTE_API int matrix_init(void ***m, int sz_x, int sz_y, int elem_sz);
LIBLTE_API void matrix_free(void **q, int sz_x);
LIBLTE_API void matrix_bzero(void **q, int sz_x, int sz_y, int elem_sz);
LIBLTE_API void matrix_fprintf_cf(FILE *f, cf_t **q, int sz_x, int sz_y);
LIBLTE_API void matrix_fprintf_f(FILE *f, float **q, int sz_x, int sz_y);
LIBLTE_API void matrix_copy(void **dst, void **src, int sz_x, int sz_y, int elem_sz);
LIBLTE_API void matrix_dotprod_cf(cf_t **x, cf_t **y, cf_t **out, int sz_x, int sz_y);
LIBLTE_API void matrix_dotprod_float(float **x, float **y, float **out, int sz_x, int sz_y);
LIBLTE_API void matrix_dotprod_int(int **x, int **y, int **out, int sz_x, int sz_y);
#endif // MATRIX_

10
lte/include/lte/utils/mux.h
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@ -25,16 +25,16 @@
*
*/
#ifndef MUX_
#define MUX_
void mux(void **input, void *output, int *input_lengths, int *input_padding_pre, int nof_inputs,
#include "lte/config.h"
LIBLTE_API void mux(void **input, void *output, int *input_lengths, int *input_padding_pre, int nof_inputs,
int sample_sz);
void demux(void *input, void **output, int *output_lengths,
LIBLTE_API void demux(void *input, void **output, int *output_lengths,
int *output_padding_pre, int *output_padding_post, int nof_outputs,
int sample_sz);
#endif
#endif // MUX_

8
lte/include/lte/utils/pack.h
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@ -29,7 +29,9 @@
#ifndef PACK_
#define PACK_
unsigned int unpack_bits(char **bits, int nof_bits);
void pack_bits(unsigned int value, char **bits, int nof_bits);
#include "lte/config.h"
#endif
LIBLTE_API unsigned int unpack_bits(char **bits, int nof_bits);
LIBLTE_API void pack_bits(unsigned int value, char **bits, int nof_bits);
#endif // PACK_

43
lte/include/lte/utils/vector.h
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@ -30,50 +30,51 @@
#define VECTOR_
#include <stdio.h>
#include "lte/config.h"
typedef _Complex float cf_t;
/** Return the sum of all the elements */
int vec_acc_ii(int *x, int len);
float vec_acc_ff(float *x, int len);
cf_t vec_acc_cc(cf_t *x, int len);
LIBLTE_API int vec_acc_ii(int *x, int len);
LIBLTE_API float vec_acc_ff(float *x, int len);
LIBLTE_API cf_t vec_acc_cc(cf_t *x, int len);
void *vec_malloc(int size);
LIBLTE_API void *vec_malloc(int size);
/* print vectors */
void vec_fprint_c(FILE *stream, cf_t *x, int len);
void vec_fprint_f(FILE *stream, float *x, int len);
void vec_fprint_b(FILE *stream, char *x, int len);
void vec_fprint_i(FILE *stream, int *x, int len);
LIBLTE_API void vec_fprint_c(FILE *stream, cf_t *x, int len);
LIBLTE_API void vec_fprint_f(FILE *stream, float *x, int len);
LIBLTE_API void vec_fprint_b(FILE *stream, char *x, int len);
LIBLTE_API void vec_fprint_i(FILE *stream, int *x, int len);
/* sum two vectors */
void vec_sum_ch(char *z, char *x, char *y, int len);
void vec_sum_ccc(cf_t *z, cf_t *x, cf_t *y, int len);
LIBLTE_API void vec_sum_ch(char *z, char *x, char *y, int len);
LIBLTE_API void vec_sum_ccc(cf_t *z, cf_t *x, cf_t *y, int len);
/* scalar product */
void vec_sc_prod_cfc(cf_t *x, float h, cf_t *z, int len);
void vec_sc_prod_ccc(cf_t *x, cf_t h, cf_t *z, int len);
LIBLTE_API void vec_sc_prod_cfc(cf_t *x, float h, cf_t *z, int len);
LIBLTE_API void vec_sc_prod_ccc(cf_t *x, cf_t h, cf_t *z, int len);
/* vector product (element-wise) */
void vec_prod_ccc(cf_t *x, cf_t *y, cf_t *z, int len);
void vec_prod_ccc_unalign(cf_t *x, cf_t *y, cf_t *z, int len);
LIBLTE_API void vec_prod_ccc(cf_t *x, cf_t *y, cf_t *z, int len);
LIBLTE_API void vec_prod_ccc_unalign(cf_t *x, cf_t *y, cf_t *z, int len);
/* z=x/y vector division (element-wise) */
void vec_div_ccc(cf_t *x, cf_t *y, cf_t *z, int len);
LIBLTE_API void vec_div_ccc(cf_t *x, cf_t *y, cf_t *z, int len);
/* conjugate */
void vec_conj_cc(cf_t *x, cf_t *y, int len);
LIBLTE_API void vec_conj_cc(cf_t *x, cf_t *y, int len);
/* average vector power */
float vec_avg_power_cf(cf_t *x, int len);
LIBLTE_API float vec_avg_power_cf(cf_t *x, int len);
/* return the index of the maximum value in the vector */
int vec_max_fi(float *x, int len);
LIBLTE_API int vec_max_fi(float *x, int len);
/* quantify vector of floats and convert to unsigned char */
void vec_quant_fuc(float *in, unsigned char *out, float gain, float offset, float clip, int len);
LIBLTE_API void vec_quant_fuc(float *in, unsigned char *out, float gain, float offset, float clip, int len);
/* magnitude of each vector element */
void vec_abs_cf(cf_t *x, float *abs, int len);
LIBLTE_API void vec_abs_cf(cf_t *x, float *abs, int len);
#endif
#endif // VECTOR_

12
lte/lib/fec/src/rm_conv.c
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@ -34,10 +34,10 @@
#define NROWS_MAX NCOLS
#define RATE 3
unsigned char RM_PERM_TC[NCOLS] =
unsigned char RM_CONV_PERM_TC[NCOLS] =
{ 1, 17, 9, 25, 5, 21, 13, 29, 3, 19, 11, 27, 7, 23, 15, 31, 0, 16, 8,
24, 4, 20, 12, 28, 2, 18, 10, 26, 6, 22, 14, 30 };
unsigned char RM_PERM_TC_INV[NCOLS] = { 16, 0, 24, 8, 20, 4, 28, 12, 18, 2, 26,
unsigned char RM_CONV_PERM_TC_INV[NCOLS] = { 16, 0, 24, 8, 20, 4, 28, 12, 18, 2, 26,
10, 22, 6, 30, 14, 17, 1, 25, 9, 21, 5, 29, 13, 19, 3, 27, 11, 23, 7,
31, 15 };
@ -64,10 +64,10 @@ int rm_conv_tx(char *input, int in_len, char *output, int out_len) {
for (s = 0; s < 3; s++) {
for (j = 0; j < NCOLS; j++) {
for (i = 0; i < nrows; i++) {
if (i*NCOLS + RM_PERM_TC[j] < ndummy) {
if (i*NCOLS + RM_CONV_PERM_TC[j] < ndummy) {
tmp[k] = TX_NULL;
} else {
tmp[k] = input[(i*NCOLS + RM_PERM_TC[j]-ndummy)*3+s];
tmp[k] = input[(i*NCOLS + RM_CONV_PERM_TC[j]-ndummy)*3+s];
}
k++;
}
@ -125,7 +125,7 @@ int rm_conv_rx(float *input, int in_len, float *output, int out_len) {
d_i = (j % K_p) / nrows;
d_j = (j % K_p) % nrows;
if (d_j * NCOLS + RM_PERM_TC[d_i] >= ndummy) {
if (d_j * NCOLS + RM_CONV_PERM_TC[d_i] >= ndummy) {
if (tmp[j] == RX_NULL) {
tmp[j] = input[k];
} else if (input[k] != RX_NULL) {
@ -144,7 +144,7 @@ int rm_conv_rx(float *input, int in_len, float *output, int out_len) {
d_i = (i + ndummy) / NCOLS;
d_j = (i + ndummy) % NCOLS;
for (j = 0; j < RATE; j++) {
float o = tmp[K_p * j + RM_PERM_TC_INV[d_j] * nrows
float o = tmp[K_p * j + RM_CONV_PERM_TC_INV[d_j] * nrows
+ d_i];
if (o != RX_NULL) {
output[i * RATE + j] = o;

10
lte/lib/resampling/src/resample_arb.c
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@ -30,7 +30,7 @@
#include "lte/resampling/resample_arb.h"
#include "lte/utils/debug.h"
float polyfilt[RESAMPLE_ARB_N][RESAMPLE_ARB_M] =
float resample_arb_polyfilt[RESAMPLE_ARB_N][RESAMPLE_ARB_M] =
{{0,0.002400347599485495,-0.006922416132556366,0.0179104136912176,0.99453086623794,-0.008521087756729117,0.0008598969867484128,0.0004992625165376107},
{-0.001903604727400391,0.004479591950094871,-0.01525319260830623,0.04647449496926549,0.9910477342662829,-0.03275243420114668,0.008048813755373533,-0.001216900416836847},
{-0.001750442300940216,0.006728826416921727,-0.02407540632178267,0.07708575473589654,0.9841056525667189,-0.05473739187922162,0.01460652754040275,-0.002745266140572769},
@ -66,7 +66,7 @@ float polyfilt[RESAMPLE_ARB_N][RESAMPLE_ARB_M] =
// TODO: use lte/utils/vector.h and Volk
cf_t dot_prod(cf_t* x, float *y, int len)
cf_t resample_arb_dot_prod(cf_t* x, float *y, int len)
{
cf_t res = 0+0*I;
for(int i=0;i<len;i++){
@ -76,7 +76,7 @@ cf_t dot_prod(cf_t* x, float *y, int len)
}
// Right-shift our window of samples
void push(resample_arb_t *q, cf_t x)
void resample_arb_push(resample_arb_t *q, cf_t x)
{
memmove(&q->reg[1], &q->reg[0], (RESAMPLE_ARB_M-1)*sizeof(cf_t));
q->reg[0] = x;
@ -98,7 +98,7 @@ int resample_arb_compute(resample_arb_t *q, cf_t *input, cf_t *output, int n_in)
while(cnt < n_in)
{
*output = dot_prod(q->reg, polyfilt[idx], RESAMPLE_ARB_M);
*output = resample_arb_dot_prod(q->reg, resample_arb_polyfilt[idx], RESAMPLE_ARB_M);
output++;
n_out++;
q->acc += q->step;
@ -107,7 +107,7 @@ int resample_arb_compute(resample_arb_t *q, cf_t *input, cf_t *output, int n_in)
q->acc -= RESAMPLE_ARB_N;
idx -= RESAMPLE_ARB_N;
if(cnt < n_in)
push(q, input[cnt++]);
resample_arb_push(q, input[cnt++]);
}
}
return n_out;

2
lte/lib/utils/src/bit.c
Unescape Escape View File

@ -29,6 +29,8 @@
#include <stdint.h>
#include <stdio.h>
#include "lte/utils/bit.h"
void bit_pack(uint32_t value, char **bits, int nof_bits)
{
int i;

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