Lionel Gauthier
c60dc45b2b
Cleaned some PDCP/driver code types parameters and vars Please see openair2/COMMON/platform_types.h for simple coding rules. please declare prototypes of functions in .h and include .h files in where the function is used and where it is implemented. git-svn-id: http://svn.eurecom.fr/openair4G/trunk@5096 818b1a75-f10b-46b9-bf7c-635c3b92a50f
130 lines
4.3 KiB
C
130 lines
4.3 KiB
C
#include "defs.h"
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int init_frame_parms(LTE_DL_FRAME_PARMS *frame_parms,uint8_t osf) {
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uint8_t log2_osf;
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if (frame_parms->Ncp==1) {
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frame_parms->nb_prefix_samples0=512;
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frame_parms->nb_prefix_samples = 512;
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frame_parms->symbols_per_tti = 12;
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}
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else {
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frame_parms->nb_prefix_samples0 = 160;
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frame_parms->nb_prefix_samples = 144;
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frame_parms->symbols_per_tti = 14;
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}
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switch(osf) {
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case 1:
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log2_osf = 0;
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break;
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case 2:
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log2_osf = 1;
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break;
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case 4:
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log2_osf = 2;
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break;
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case 8:
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log2_osf = 3;
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break;
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case 16:
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log2_osf = 4;
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break;
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default:
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msg("Illegal oversampling %d\n",osf);
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return(-1);
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}
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switch (frame_parms->N_RB_DL) {
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case 100:
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if (osf>1) {
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msg("Illegal oversampling %d for N_RB_DL %d\n",osf,frame_parms->N_RB_DL);
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return(-1);
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}
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frame_parms->ofdm_symbol_size = 2048;
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frame_parms->log2_symbol_size = 11;
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frame_parms->samples_per_tti = 30720;
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frame_parms->first_carrier_offset = 2048-600;
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frame_parms->N_RBGS = 25;
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break;
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case 50:
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if (osf>1) {
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msg("Illegal oversampling %d for N_RB_DL %d\n",osf,frame_parms->N_RB_DL);
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return(-1);
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}
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frame_parms->ofdm_symbol_size = 1024*osf;
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frame_parms->log2_symbol_size = 10+log2_osf;
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frame_parms->samples_per_tti = 15360*osf;
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frame_parms->first_carrier_offset = frame_parms->ofdm_symbol_size - 300;
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frame_parms->nb_prefix_samples>>=(1-log2_osf);
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frame_parms->nb_prefix_samples0>>=(1-log2_osf);
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frame_parms->N_RBGS = 17;
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break;
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case 25:
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if (osf>2) {
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msg("Illegal oversampling %d for N_RB_DL %d\n",osf,frame_parms->N_RB_DL);
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return(-1);
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}
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frame_parms->ofdm_symbol_size = 512*osf;
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frame_parms->log2_symbol_size = 9+log2_osf;
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frame_parms->samples_per_tti = 7680*osf;
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frame_parms->first_carrier_offset = frame_parms->ofdm_symbol_size - 150;
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frame_parms->nb_prefix_samples>>=(2-log2_osf);
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frame_parms->nb_prefix_samples0>>=(2-log2_osf);
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frame_parms->N_RBGS = 13;
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break;
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case 15:
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frame_parms->ofdm_symbol_size = 256*osf;
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frame_parms->log2_symbol_size = 8+log2_osf;
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frame_parms->samples_per_tti = 3840*osf;
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frame_parms->first_carrier_offset = frame_parms->ofdm_symbol_size - 90;
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frame_parms->nb_prefix_samples>>=(3-log2_osf);
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frame_parms->nb_prefix_samples0>>=(3-log2_osf);
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frame_parms->N_RBGS = 8;
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break;
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case 6:
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frame_parms->ofdm_symbol_size = 128*osf;
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frame_parms->log2_symbol_size = 7+log2_osf;
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frame_parms->samples_per_tti = 1920*osf;
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frame_parms->first_carrier_offset = frame_parms->ofdm_symbol_size - 36;
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frame_parms->nb_prefix_samples>>=(4-log2_osf);
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frame_parms->nb_prefix_samples0>>=(4-log2_osf);
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frame_parms->N_RBGS = 6;
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break;
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default:
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msg("init_frame_parms: Error: Number of resource blocks (N_RB_DL %d) undefined, frame_parms = %p \n",frame_parms->N_RB_DL, frame_parms);
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return(-1);
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break;
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}
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// frame_parms->tdd_config=3;
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return(0);
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}
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void dump_frame_parms(LTE_DL_FRAME_PARMS *frame_parms)
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{
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msg("frame_parms->N_RB_DL=%d\n",frame_parms->N_RB_DL);
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msg("frame_parms->N_RB_UL=%d\n",frame_parms->N_RB_UL);
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msg("frame_parms->Nid_cell=%d\n",frame_parms->Nid_cell);
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msg("frame_parms->Ncp=%d\n",frame_parms->Ncp);
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msg("frame_parms->Ncp_UL=%d\n",frame_parms->Ncp_UL);
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msg("frame_parms->nushift=%d\n",frame_parms->nushift);
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msg("frame_parms->frame_type=%d\n",frame_parms->frame_type);
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msg("frame_parms->tdd_config=%d\n",frame_parms->tdd_config);
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msg("frame_parms->tdd_config_S=%d\n",frame_parms->tdd_config_S);
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msg("frame_parms->mode1_flag=%d\n",frame_parms->mode1_flag);
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msg("frame_parms->nb_antennas_tx=%d\n",frame_parms->nb_antennas_tx);
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msg("frame_parms->nb_antennas_rx=%d\n",frame_parms->nb_antennas_rx);
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msg("frame_parms->ofdm_symbol_size=%d\n",frame_parms->ofdm_symbol_size);
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msg("frame_parms->log2_symbol_size=%d\n",frame_parms->log2_symbol_size);
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msg("frame_parms->nb_prefix_samples=%d\n",frame_parms->nb_prefix_samples);
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msg("frame_parms->nb_prefix_samples0=%d\n",frame_parms->nb_prefix_samples0);
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msg("frame_parms->first_carrier_offset=%d\n",frame_parms->first_carrier_offset);
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msg("frame_parms->samples_per_tti=%d\n",frame_parms->samples_per_tti);
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msg("frame_parms->symbols_per_tti=%d\n",frame_parms->symbols_per_tti);
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}
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