Commit 8b4d3033 authored by Cedric Roux's avatar Cedric Roux

Merge remote-tracking branch 'origin/generate_75KHz_tables' into develop

parents c8eb68d5 3740f3d7
......@@ -1144,6 +1144,7 @@ set(PHY_SRC_RU
${OPENAIR1_DIR}/PHY/LTE_TRANSPORT/if5_tools.c
${OPENAIR1_DIR}/PHY/MODULATION/slot_fep_ul.c
${OPENAIR1_DIR}/PHY/MODULATION/ul_7_5_kHz.c
${OPENAIR1_DIR}/PHY/MODULATION/gen_75KHz.cpp
${OPENAIR1_DIR}/PHY/MODULATION/beamforming.c
${OPENAIR1_DIR}/PHY/MODULATION/compute_bf_weights.c
${OPENAIR1_DIR}/PHY/INIT/lte_init_ru.c
......
/*
* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The OpenAirInterface Software Alliance licenses this file to You under
* the OAI Public License, Version 1.1 (the "License"); you may not use this file
* except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.openairinterface.org/?page_id=698
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*-------------------------------------------------------------------------------
* For more information about the OpenAirInterface (OAI) Software Alliance:
* contact@openairinterface.org
*/
Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The OpenAirInterface Software Alliance licenses this file to You under
the OAI Public License, Version 1.1 (the "License"); you may not use this file
except in compliance with the License.
You may obtain a copy of the License at
http://www.openairinterface.org/?page_id=698
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-------------------------------------------------------------------------------
For more information about the OpenAirInterface (OAI) Software Alliance:
contact@openairinterface.org
*/
/*!\brief Initilization and reconfiguration routines for LTE PHY */
#include "phy_init.h"
......@@ -27,12 +27,9 @@
#include "PHY/LTE_REFSIG/lte_refsig.h"
#include "PHY/LTE_TRANSPORT/transport_common_proto.h"
void generate_64qam_table(void)
{
void generate_64qam_table(void) {
int a,b,c,index;
for (a=-1; a<=1; a+=2)
for (b=-1; b<=1; b+=2)
for (c=-1; c<=1; c+=2) {
......@@ -41,9 +38,7 @@ void generate_64qam_table(void)
}
}
void generate_16qam_table(void)
{
void generate_16qam_table(void) {
int a,b,index;
for (a=-1; a<=1; a+=2)
......@@ -53,54 +48,41 @@ void generate_16qam_table(void)
}
}
void generate_qpsk_table(void)
{
void generate_qpsk_table(void) {
int a,index;
for (a=-1; a<=1; a+=2) {
index = (1+a)/2;
qpsk_table[index] = -a*QPSK;
qpsk_table[index] = -a*QPSK;
}
}
void init_lte_top(LTE_DL_FRAME_PARMS *frame_parms)
{
void init_7_5KHz(void);
void init_lte_top(LTE_DL_FRAME_PARMS *frame_parms) {
ccodelte_init();
ccodelte_init_inv();
init_dfts();
phy_generate_viterbi_tables_lte();
load_codinglib();
lte_sync_time_init(frame_parms);
generate_ul_ref_sigs();
generate_ul_ref_sigs_rx();
generate_64qam_table();
generate_16qam_table();
generate_qpsk_table();
generate_RIV_tables();
init_unscrambling_lut();
init_scrambling_lut();
//set_taus_seed(1328);
init_7_5KHz();
}
void free_lte_top(void)
{
void free_lte_top(void) {
free_codinglib();
lte_sync_time_free();
/* free_ul_ref_sigs() is called in phy_free_lte_eNB() */
}
/*
* @}*/
@}*/
#include <stdio.h>
#include <stdint.h>
#include <string.h>
#include <malloc.h>
#include <assert.h>
#include <complex>
#include <cmath>
#include <map>
#include <PHY/MODULATION/modulation_extern.h>
using namespace std;
extern "C" {
void gen_sig(int RB, int len, double ratio, int16_t *table_n, int16_t *table_e ) {
double samplerate = 30.72e6*ratio;
double ofdm_size = 2048*ratio;
double PI = std::acos(-1);
std::complex<int> tt;
complex<double> t[len];
int index=0;
double cp0 = 160*ratio;
double cp = 144*ratio;
for (int i=-cp0; i<ofdm_size; i++)
t[index++] = polar( 32767.0, -2*PI*i*7.5e3/samplerate);
for(int x=0 ; x <6 ; x++)
for (int i=-cp; i<ofdm_size; i++)
t[index++] = polar( 32767.0, -2*PI*i*7.5e3/samplerate);
for (int i=0; i < len ; i++) {
table_n[i*2] = floor(real(t[i]));
table_n[i*2+1] = floor(imag(t[i]));
}
index=0;
double cpe = 512*ratio;
for(int x=0 ; x <6 ; x++)
for (int i=-cpe; i<ofdm_size; i++)
t[index++] = polar( 32767.0, -2*PI*i*7.5e3/samplerate);
for (int i=0; i < len ; i++) {
table_e[i*2] = floor(real(t[i]));
table_e[i*2+1] = floor(imag(t[i]));
}
}
int16_t *s6n_kHz_7_5;
int16_t *s6e_kHz_7_5;
int16_t *s15n_kHz_7_5;
int16_t *s15e_kHz_7_5;
int16_t *s25n_kHz_7_5;
int16_t *s25e_kHz_7_5;
int16_t *s50n_kHz_7_5;
int16_t *s50e_kHz_7_5;
int16_t *s75n_kHz_7_5;
int16_t *s75e_kHz_7_5;
int16_t *s100n_kHz_7_5;
int16_t *s100e_kHz_7_5;
int16_t **tables[12]= {&s6n_kHz_7_5,&s6e_kHz_7_5,
&s15n_kHz_7_5,&s15e_kHz_7_5,
&s25n_kHz_7_5,&s25e_kHz_7_5,
&s50n_kHz_7_5,&s50e_kHz_7_5,
&s75n_kHz_7_5,&s75e_kHz_7_5,
&s100n_kHz_7_5,&s100e_kHz_7_5,
};
int tables_size_bytes[12];
#define MyAssert(x) { if(!(x)) { printf("Error in table intialization: %s:%d\n",__FILE__,__LINE__); exit(1);}}
void init_7_5KHz(void) {
const map<int,double> tables_7_5KHz= {{6,1.0/16},{15,1.0/8},{25,1.0/4},{50,1.0/2},{75,3.0/4},{100,1.0}};
int tables_idx=0;
for (auto it=tables_7_5KHz.begin(); it!=tables_7_5KHz.end(); ++it) {
int len=15360*it->second;
tables_size_bytes[tables_idx]=sizeof(int16_t)*2*len;
tables_size_bytes[tables_idx+1]=sizeof(int16_t)*2*len;
MyAssert(0==posix_memalign((void **)tables[tables_idx],
16,tables_size_bytes[tables_idx]));
MyAssert(0==posix_memalign((void **)tables[tables_idx+1],
16,tables_size_bytes[tables_idx+1]));
gen_sig(it->first, len, it->second, *tables[tables_idx], *tables[tables_idx+1]);
tables_idx+=2;
}
}
}
function [] = gen_7_5_kHz()
[s6_n2, s6_e2] = gen_sig(6);
[s15_n2, s15_e2] = gen_sig(15);
[s25_n2, s25_e2] = gen_sig(25);
[s50_n2, s50_e2] = gen_sig(50);
[s75_n2, s75_e2] = gen_sig(75);
[s100_n2, s100_e2] = gen_sig(100);
fd=fopen("kHz_7_5.h","w");
fprintf(fd,"s16 s6n_kHz_7_5[%d]__attribute__((aligned(16))) = {",length(s6_n2));
fprintf(fd,"%d,",s6_n2(1:(end-1)));
fprintf(fd,"%d};\n\n",s6_n2(end));
fprintf(fd,"s16 s6e_kHz_7_5[%d]__attribute__((aligned(16))) = {",length(s6_e2));
fprintf(fd,"%d,",s6_e2(1:(end-1)));
fprintf(fd,"%d};\n\n",s6_e2(end));
fprintf(fd,"s16 s15n_kHz_7_5[%d]__attribute__((aligned(16))) = {",length(s15_n2));
fprintf(fd,"%d,",s15_n2(1:(end-1)));
fprintf(fd,"%d};\n\n",s15_n2(end));
fprintf(fd,"s16 s15e_kHz_7_5[%d]__attribute__((aligned(16))) = {",length(s15_e2));
fprintf(fd,"%d,",s15_e2(1:(end-1)));
fprintf(fd,"%d};\n\n",s15_e2(end));
fprintf(fd,"s16 s25n_kHz_7_5[%d]__attribute__((aligned(16))) = {",length(s25_n2));
fprintf(fd,"%d,",s25_n2(1:(end-1)));
fprintf(fd,"%d};\n\n",s25_n2(end));
fprintf(fd,"s16 s25e_kHz_7_5[%d]__attribute__((aligned(16))) = {",length(s25_e2));
fprintf(fd,"%d,",s25_e2(1:(end-1)));
fprintf(fd,"%d};\n\n",s25_e2(end));
fprintf(fd,"s16 s50n_kHz_7_5[%d]__attribute__((aligned(16))) = {",length(s50_n2));
fprintf(fd,"%d,",s50_n2(1:(end-1)));
fprintf(fd,"%d};\n\n",s50_n2(end));
fprintf(fd,"s16 s50e_kHz_7_5[%d]__attribute__((aligned(16))) = {",length(s50_e2));
fprintf(fd,"%d,",s50_e2(1:(end-1)));
fprintf(fd,"%d};\n\n",s50_e2(end));
fprintf(fd,"s16 s75n_kHz_7_5[%d]__attribute__((aligned(16))) = {",length(s75_n2));
fprintf(fd,"%d,",s75_n2(1:(end-1)));
fprintf(fd,"%d};\n\n",s75_n2(end));
fprintf(fd,"s16 s75e_kHz_7_5[%d]__attribute__((aligned(16))) = {",length(s75_e2));
fprintf(fd,"%d,",s75_e2(1:(end-1)));
fprintf(fd,"%d};\n\n",s75_e2(end));
fprintf(fd,"s16 s100n_kHz_7_5[%d]__attribute__((aligned(16)))= {",length(s100_n2));
fprintf(fd,"%d,",s100_n2(1:(end-1)));
fprintf(fd,"%d};\n\n",s100_n2(end));
fprintf(fd,"s16 s100e_kHz_7_5[%d]__attribute__((aligned(16)))= {",length(s100_n2));
fprintf(fd,"%d,",s100_e2(1:(end-1)));
fprintf(fd,"%d};\n\n",s100_e2(end));
fclose(fd);
end
function [s_n2, s_e2] = gen_sig(RB)
% 20MHz BW
cp0 = 160;
cp = 144;
cpe = 512;
samplerate = 30.72e6;
ofdm_size = 2048;
len = 15360;
switch(RB)
case 6
ratio = 1/16;
case 15
ratio = 1/8;
case 25
ratio = 1/4;
case 50
ratio = 1/2;
case 75
ratio = 3/4;
case 100
ratio = 1;
otherwise
disp("Wrong Number of RB");
end
cp0 = cp0*ratio;
cp = cp*ratio;
cpe = cpe*ratio;
samplerate = samplerate*ratio;
ofdm_size = ofdm_size*ratio;
len = len*ratio;
s_n0 = floor(32767*exp(-sqrt(-1)*2*pi*(-cp0:ofdm_size-1)*7.5e3/samplerate));
s_n1 = floor(32767*exp(-sqrt(-1)*2*pi*(-cp:ofdm_size-1)*7.5e3/samplerate));
s_n = [s_n0 s_n1 s_n1 s_n1 s_n1 s_n1 s_n1];
s_n2 = zeros(1, 2*len);
s_n2(1:2:end) = real(s_n);
s_n2(2:2:end) = imag(s_n);
s_e = floor(32767*exp(-sqrt(-1)*2*pi*(-cpe:ofdm_size-1)*7.5e3/samplerate));
s_e = [s_e s_e s_e s_e s_e s_e];
s_e2 = zeros(1, 2*len);
s_e2(1:2:end) = real(s_e);
s_e2(2:2:end) = imag(s_e);
end
This diff is collapsed.
/*
* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The OpenAirInterface Software Alliance licenses this file to You under
* the OAI Public License, Version 1.1 (the "License"); you may not use this file
* except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.openairinterface.org/?page_id=698
*
* Unless required by applicable law or agreed to in writing, software
; * distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*-------------------------------------------------------------------------------
* For more information about the OpenAirInterface (OAI) Software Alliance:
* contact@openairinterface.org
*/
Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The OpenAirInterface Software Alliance licenses this file to You under
the OAI Public License, Version 1.1 (the "License"); you may not use this file
except in compliance with the License.
You may obtain a copy of the License at
extern int16_t s6n_kHz_7_5[1920];
extern int16_t s6e_kHz_7_5[1920];
extern int16_t s15n_kHz_7_5[3840];
extern int16_t s15e_kHz_7_5[3840];
extern int16_t s25n_kHz_7_5[7680];
extern int16_t s25e_kHz_7_5[7680];
extern int16_t s50n_kHz_7_5[15360];
extern int16_t s50e_kHz_7_5[15360];
extern int16_t s75n_kHz_7_5[23040];
extern int16_t s75e_kHz_7_5[23040];
extern int16_t s100n_kHz_7_5[30720];
extern int16_t s100e_kHz_7_5[30720];
http://www.openairinterface.org/?page_id=698
Unless required by applicable law or agreed to in writing, software
; * distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-------------------------------------------------------------------------------
For more information about the OpenAirInterface (OAI) Software Alliance:
contact@openairinterface.org
*/
#ifdef __cplusplus
extern "C" {
#endif
extern int16_t *s6n_kHz_7_5;
extern int16_t *s6e_kHz_7_5;
extern int16_t *s15n_kHz_7_5;
extern int16_t *s15e_kHz_7_5;
extern int16_t *s25n_kHz_7_5;
extern int16_t *s25e_kHz_7_5;
extern int16_t *s50n_kHz_7_5;
extern int16_t *s50e_kHz_7_5;
extern int16_t *s75n_kHz_7_5;
extern int16_t *s75e_kHz_7_5;
extern int16_t *s100n_kHz_7_5;
extern int16_t *s100e_kHz_7_5;
extern short conjugate75[8];
extern short conjugate75_2[8];
extern short negate[8];
#ifdef __cplusplus
}
#endif
......@@ -19,7 +19,6 @@
* contact@openairinterface.org
*/
#include "kHz_7_5.h"
short conjugate75[8]__attribute__((aligned(16))) = {-1,1,-1,1,-1,1,-1,1} ;
short conjugate75_2[8]__attribute__((aligned(16))) = {1,-1,1,-1,1,-1,1,-1} ;
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment