maki/openairinterface5g
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Formating for PHY_ofdm_mod

Browse Source
This commit is contained in:
Bartosz Podrygajlo
2024-12-16 15:04:03 +01:00
parent 054506f5ae
commit 31b8d98bb5
1 changed files with 57 additions and 62 deletions
Download Patch File Download Diff File Expand all files Collapse all files
openair1/PHY/MODULATION/ofdm_mod.c
+57 -62
View File
@@ -122,36 +122,43 @@ void nr_normal_prefix_mod(c16_t *txdataF, c16_t *txdata, uint8_t nsymb, const NR
} }
void PHY_ofdm_mod(int *input, /// pointer to complex input void PHY_ofdm_mod(int *input, /// pointer to complex input
int *output, /// pointer to complex output int *output, /// pointer to complex output
int fftsize, /// FFT_SIZE int fftsize, /// FFT_SIZE
unsigned char nb_symbols, /// number of OFDM symbols unsigned char nb_symbols, /// number of OFDM symbols
unsigned short nb_prefix_samples, /// cyclic prefix length unsigned short nb_prefix_samples, /// cyclic prefix length
Extension_t etype /// type of extension Extension_t etype /// type of extension
) )
{ {
if (nb_symbols == 0)
return;
if(nb_symbols == 0) return; int16_t temp[2 * 2 * 6144 * 4] __attribute__((aligned(32)));
int i, j;
int16_t temp[2*2*6144*4] __attribute__((aligned(32))); volatile int *output_ptr = (int *)0;
int i,j;
volatile int *output_ptr=(int*)0; int *temp_ptr = (int *)0;
int *temp_ptr=(int*)0;
idft_size_idx_t idft_size = get_idft(fftsize); idft_size_idx_t idft_size = get_idft(fftsize);
#ifdef DEBUG_OFDM_MOD #ifdef DEBUG_OFDM_MOD
printf("[PHY] OFDM mod (size %d,prefix %d) Symbols %d, input %p, output %p\n", printf("[PHY] OFDM mod (size %d,prefix %d) Symbols %d, input %p, output %p\n",
fftsize,nb_prefix_samples,nb_symbols,input,output); fftsize,
nb_prefix_samples,
nb_symbols,
input,
output);
#endif #endif
for (i = 0; i < nb_symbols; i++) {
for (i=0; i<nb_symbols; i++) {
#ifdef DEBUG_OFDM_MOD #ifdef DEBUG_OFDM_MOD
printf("[PHY] symbol %d/%d offset %d (%p,%p -> %p)\n",i,nb_symbols,i*fftsize+(i*nb_prefix_samples),input,&input[i*fftsize],&output[(i*fftsize) + ((i)*nb_prefix_samples)]); printf("[PHY] symbol %d/%d offset %d (%p,%p -> %p)\n",
i,
nb_symbols,
i * fftsize + (i * nb_prefix_samples),
input,
&input[i * fftsize],
&output[(i * fftsize) + ((i)*nb_prefix_samples)]);
#endif #endif
// on AVX2 need 256-bit alignment // on AVX2 need 256-bit alignment
@@ -161,70 +168,58 @@ void PHY_ofdm_mod(int *input, /// pointer to complex input
// Note: will have to adjust for synchronization offset! // Note: will have to adjust for synchronization offset!
switch (etype) { switch (etype) {
case CYCLIC_PREFIX: case CYCLIC_PREFIX:
output_ptr = &output[(i*fftsize) + ((1+i)*nb_prefix_samples)]; output_ptr = &output[(i * fftsize) + ((1 + i) * nb_prefix_samples)];
temp_ptr = (int *)temp; temp_ptr = (int *)temp;
// msg("Doing cyclic prefix method\n");
// msg("Doing cyclic prefix method\n"); {
memcpy((void *)output_ptr, (void *)temp_ptr, fftsize << 2);
}
memcpy((void *)&output_ptr[-nb_prefix_samples], (void *)&output_ptr[fftsize - nb_prefix_samples], nb_prefix_samples << 2);
break;
{ case CYCLIC_SUFFIX:
memcpy((void*)output_ptr,(void*)temp_ptr,fftsize<<2);
}
memcpy((void*)&output_ptr[-nb_prefix_samples],(void*)&output_ptr[fftsize-nb_prefix_samples],nb_prefix_samples<<2);
break;
case CYCLIC_SUFFIX: output_ptr = &output[(i * fftsize) + (i * nb_prefix_samples)];
temp_ptr = (int *)temp;
output_ptr = &output[(i*fftsize)+ (i*nb_prefix_samples)]; // msg("Doing cyclic suffix method\n");
temp_ptr = (int *)temp; for (j = 0; j < fftsize; j++) {
output_ptr[j] = temp_ptr[2 * j];
}
// msg("Doing cyclic suffix method\n"); for (j = 0; j < nb_prefix_samples; j++)
output_ptr[fftsize + j] = output_ptr[j];
for (j=0; j<fftsize ; j++) { break;
output_ptr[j] = temp_ptr[2*j];
}
case ZEROS:
for (j=0; j<nb_prefix_samples; j++) break;
output_ptr[fftsize+j] = output_ptr[j];
break; case NONE:
case ZEROS: // msg("NO EXTENSION!\n");
output_ptr = &output[fftsize];
break; temp_ptr = (int *)temp;
case NONE: for (j = 0; j < fftsize; j++) {
output_ptr[j] = temp_ptr[2 * j];
}
// msg("NO EXTENSION!\n"); break;
output_ptr = &output[fftsize];
temp_ptr = (int *)temp;
for (j=0; j<fftsize ; j++) {
output_ptr[j] = temp_ptr[2*j];
}
break;
default:
break;
default:
break;
} }
} }
} }
void do_OFDM_mod(c16_t **txdataF, c16_t **txdata, uint32_t frame,uint16_t next_slot, LTE_DL_FRAME_PARMS *frame_parms) void do_OFDM_mod(c16_t **txdataF, c16_t **txdata, uint32_t frame,uint16_t next_slot, LTE_DL_FRAME_PARMS *frame_parms)
{ {