From 1202ea234f1fbd68a4a5da75718db77ce65df327 Mon Sep 17 00:00:00 2001 From: Ahmed Hussein <ahmed.hussein@iis.fraunhofer.de> Date: Thu, 22 Aug 2019 15:59:17 +0200 Subject: [PATCH] Reordering frame and SNR loops --- openair1/SIMULATION/NR_PHY/ulsim.c | 211 +++++++++++++++-------------- 1 file changed, 109 insertions(+), 102 deletions(-) diff --git a/openair1/SIMULATION/NR_PHY/ulsim.c b/openair1/SIMULATION/NR_PHY/ulsim.c index 679b5d37cf..5501ea6c2a 100644 --- a/openair1/SIMULATION/NR_PHY/ulsim.c +++ b/openair1/SIMULATION/NR_PHY/ulsim.c @@ -393,83 +393,87 @@ int main(int argc, char **argv) unsigned char *estimated_output_bit; unsigned char *test_input_bit; - uint32_t errors_bit = 0; + uint32_t errors_decoding = 0; uint32_t errors_scrambling = 0; - uint32_t frames_in_error = 0; + uint32_t is_frame_in_error = 0; test_input_bit = (unsigned char *) malloc16(sizeof(unsigned char) * 16 * 68 * 384); estimated_output_bit = (unsigned char *) malloc16(sizeof(unsigned char) * 16 * 68 * 384); nr_scheduled_response_t scheduled_response; fapi_nr_ul_config_request_t ul_config; - - for (int frame = 0; frame < number_of_frames; frame++) { - - // printf("***********\n"); - // printf("frame = %d\n", frame); - // printf("***********\n"); - UE_proc.nr_tti_tx = slot; - UE_proc.frame_tx = frame; - - // --------- setting rel15_ul parameters for gNB -------- - rel15_ul->rnti = n_rnti; - rel15_ul->ulsch_pdu_rel15.start_rb = start_rb; - rel15_ul->ulsch_pdu_rel15.number_rbs = nb_rb; - rel15_ul->ulsch_pdu_rel15.start_symbol = start_symbol; - rel15_ul->ulsch_pdu_rel15.number_symbols = nb_symb_sch; - rel15_ul->ulsch_pdu_rel15.nb_re_dmrs = nb_re_dmrs; - rel15_ul->ulsch_pdu_rel15.length_dmrs = length_dmrs; - rel15_ul->ulsch_pdu_rel15.Qm = mod_order; - rel15_ul->ulsch_pdu_rel15.mcs = Imcs; - rel15_ul->ulsch_pdu_rel15.rv = 0; - rel15_ul->ulsch_pdu_rel15.ndi = 0; - rel15_ul->ulsch_pdu_rel15.n_layers = precod_nbr_layers; - /////////////////////////////////////////////////// - - //fapi_nr_tx_request_t tx_request; - scheduled_response.module_id = 0; - scheduled_response.CC_id = 0; - scheduled_response.frame = frame; - scheduled_response.slot = slot; - scheduled_response.dl_config = NULL; - scheduled_response.ul_config = &ul_config; - scheduled_response.dl_config = NULL; - - ul_config.sfn_slot = slot; - ul_config.number_pdus = 1; - ul_config.ul_config_list[0].pdu_type = FAPI_NR_UL_CONFIG_TYPE_PUSCH; - ul_config.ul_config_list[0].ulsch_config_pdu.rnti = n_rnti; - ul_config.ul_config_list[0].ulsch_config_pdu.ulsch_pdu_rel15.number_rbs = nb_rb; - ul_config.ul_config_list[0].ulsch_config_pdu.ulsch_pdu_rel15.start_rb = start_rb; - ul_config.ul_config_list[0].ulsch_config_pdu.ulsch_pdu_rel15.number_symbols = nb_symb_sch; - ul_config.ul_config_list[0].ulsch_config_pdu.ulsch_pdu_rel15.start_symbol = start_symbol; - ul_config.ul_config_list[0].ulsch_config_pdu.ulsch_pdu_rel15.mcs = Imcs; - ul_config.ul_config_list[0].ulsch_config_pdu.ulsch_pdu_rel15.ndi = 0; - ul_config.ul_config_list[0].ulsch_config_pdu.ulsch_pdu_rel15.rv = 0; - ul_config.ul_config_list[0].ulsch_config_pdu.ulsch_pdu_rel15.n_layers = precod_nbr_layers; - ul_config.ul_config_list[0].ulsch_config_pdu.ulsch_pdu_rel15.harq_process_nbr = harq_pid; - //there are plenty of other parameters that we don't seem to be using for now. e.g. - //ul_config.ul_config_list[0].ulsch_config_pdu.ulsch_pdu_rel15.absolute_delta_PUSCH = 0; - - // set FAPI parameters for UE, put them in the scheduled response and call - nr_ue_scheduled_response(&scheduled_response); - - /////////////////////////phy_procedures_nr_ue_TX/////////////////////// - /////////// - - phy_procedures_nrUE_TX(UE, &UE_proc, gNB_id, 0); - - /////////// - //////////////////////////////////////////////////// - tx_offset = slot*frame_parms->samples_per_slot; - - txlev = signal_energy_amp_shift(&UE->common_vars.txdata[0][tx_offset + 5*frame_parms->ofdm_symbol_size + 4*frame_parms->nb_prefix_samples + frame_parms->nb_prefix_samples0], - frame_parms->ofdm_symbol_size + frame_parms->nb_prefix_samples); - - txlev_float = (double)txlev/(double)AMP; // output of signal_energy is fixed point representation - - for (SNR = snr0; SNR < snr1; SNR += snr_step) { + printf("\n"); + + for (SNR = snr0; SNR < snr1; SNR += snr_step) { + + printf("-------------------\n"); + printf("SNR %f\n", SNR); + printf("-------------------\n"); + + is_frame_in_error = 0; + for (int frame = 0; frame < number_of_frames; frame++) { + + UE_proc.nr_tti_tx = slot; + UE_proc.frame_tx = frame; + + // --------- setting rel15_ul parameters for gNB -------- + rel15_ul->rnti = n_rnti; + rel15_ul->ulsch_pdu_rel15.start_rb = start_rb; + rel15_ul->ulsch_pdu_rel15.number_rbs = nb_rb; + rel15_ul->ulsch_pdu_rel15.start_symbol = start_symbol; + rel15_ul->ulsch_pdu_rel15.number_symbols = nb_symb_sch; + rel15_ul->ulsch_pdu_rel15.nb_re_dmrs = nb_re_dmrs; + rel15_ul->ulsch_pdu_rel15.length_dmrs = length_dmrs; + rel15_ul->ulsch_pdu_rel15.Qm = mod_order; + rel15_ul->ulsch_pdu_rel15.mcs = Imcs; + rel15_ul->ulsch_pdu_rel15.rv = 0; + rel15_ul->ulsch_pdu_rel15.ndi = 0; + rel15_ul->ulsch_pdu_rel15.n_layers = precod_nbr_layers; + /////////////////////////////////////////////////// + + //fapi_nr_tx_request_t tx_request; + + scheduled_response.module_id = 0; + scheduled_response.CC_id = 0; + scheduled_response.frame = frame; + scheduled_response.slot = slot; + scheduled_response.dl_config = NULL; + scheduled_response.ul_config = &ul_config; + scheduled_response.dl_config = NULL; + + ul_config.sfn_slot = slot; + ul_config.number_pdus = 1; + ul_config.ul_config_list[0].pdu_type = FAPI_NR_UL_CONFIG_TYPE_PUSCH; + ul_config.ul_config_list[0].ulsch_config_pdu.rnti = n_rnti; + ul_config.ul_config_list[0].ulsch_config_pdu.ulsch_pdu_rel15.number_rbs = nb_rb; + ul_config.ul_config_list[0].ulsch_config_pdu.ulsch_pdu_rel15.start_rb = start_rb; + ul_config.ul_config_list[0].ulsch_config_pdu.ulsch_pdu_rel15.number_symbols = nb_symb_sch; + ul_config.ul_config_list[0].ulsch_config_pdu.ulsch_pdu_rel15.start_symbol = start_symbol; + ul_config.ul_config_list[0].ulsch_config_pdu.ulsch_pdu_rel15.mcs = Imcs; + ul_config.ul_config_list[0].ulsch_config_pdu.ulsch_pdu_rel15.ndi = 0; + ul_config.ul_config_list[0].ulsch_config_pdu.ulsch_pdu_rel15.rv = 0; + ul_config.ul_config_list[0].ulsch_config_pdu.ulsch_pdu_rel15.n_layers = precod_nbr_layers; + ul_config.ul_config_list[0].ulsch_config_pdu.ulsch_pdu_rel15.harq_process_nbr = harq_pid; + //there are plenty of other parameters that we don't seem to be using for now. e.g. + //ul_config.ul_config_list[0].ulsch_config_pdu.ulsch_pdu_rel15.absolute_delta_PUSCH = 0; + + // set FAPI parameters for UE, put them in the scheduled response and call + nr_ue_scheduled_response(&scheduled_response); + + /////////////////////////phy_procedures_nr_ue_TX/////////////////////// + /////////// + + phy_procedures_nrUE_TX(UE, &UE_proc, gNB_id, 0); + + /////////// + //////////////////////////////////////////////////// + tx_offset = slot*frame_parms->samples_per_slot; + + txlev = signal_energy_amp_shift(&UE->common_vars.txdata[0][tx_offset + 5*frame_parms->ofdm_symbol_size + 4*frame_parms->nb_prefix_samples + frame_parms->nb_prefix_samples0], + frame_parms->ofdm_symbol_size + frame_parms->nb_prefix_samples); + + txlev_float = (double)txlev/(double)AMP; // output of signal_energy is fixed point representation n_errors = 0; n_false_positive = 0; @@ -481,21 +485,29 @@ int main(int argc, char **argv) for (trial = 0; trial < n_trials; trial++) { errors_scrambling = 0; - errors_bit = 0; + errors_decoding = 0; + //---------------------------------------------------------- + //------------------------ add noise ----------------------- + //---------------------------------------------------------- for (i=0; i<frame_length_complex_samples; i++) { for (ap=0; ap<frame_parms->nb_antennas_rx; ap++) { ((short*) gNB->common_vars.rxdata[ap])[2*i] = (((int16_t *)UE->common_vars.txdata[ap])[(i<<1)]) + (int16_t)(sqrt(sigma/2)*gaussdouble(0.0,1.0)*(double)AMP); // convert to fixed point ((short*) gNB->common_vars.rxdata[ap])[2*i+1] = (((int16_t *)UE->common_vars.txdata[ap])[(i<<1)+1]) + (int16_t)(sqrt(sigma/2)*gaussdouble(0.0,1.0)*(double)AMP); } } + //////////////////////////////////////////////////////////// + //---------------------------------------------------------- + //------------------- gNB phy procedures ------------------- + //---------------------------------------------------------- phy_procedures_gNB_common_RX(gNB, frame, slot); phy_procedures_gNB_uespec_RX(gNB, frame, slot, rel15_ul->ulsch_pdu_rel15.start_symbol, rel15_ul->ulsch_pdu_rel15.start_symbol + rel15_ul->ulsch_pdu_rel15.number_symbols); + //////////////////////////////////////////////////////////// //---------------------------------------------------------- - //---------------------- count errors ---------------------- + //----------------- count and print errors ----------------- //---------------------------------------------------------- for (i = 0; i < available_bits; i++) { @@ -503,54 +515,49 @@ int main(int argc, char **argv) if(((ulsch_ue[0]->g[i] == 0) && (gNB->pusch_vars[UE_id]->llr[i] <= 0)) || ((ulsch_ue[0]->g[i] == 1) && (gNB->pusch_vars[UE_id]->llr[i] >= 0))) { - if(errors_scrambling == 0) { - printf("\n"); - printf("First bit in error in unscrambling in frame %d = %d\n", frame, i); - } + if(errors_scrambling == 0) + printf("\x1B[34m" "[frame %d][trial %d]\t1st bit in error in unscrambling = %d\n" "\x1B[0m", frame, trial, i); errors_scrambling++; } } + if (errors_scrambling > 0) { + printf("\x1B[31m""[frame %d][trial %d]\tnumber of errors in unscrambling = %d\n" "\x1B[0m", frame, trial, errors_scrambling); + } + for (i = 0; i < TBS; i++) { estimated_output_bit[i] = (ulsch_gNB->harq_processes[harq_pid]->b[i/8] & (1 << (i & 7))) >> (i & 7); - test_input_bit[i] = (ulsch_ue[0]->harq_processes[harq_pid]->b[i / 8] & (1 << (i & 7))) >> (i & 7); // Further correct for multiple segments + test_input_bit[i] = (ulsch_ue[0]->harq_processes[harq_pid]->b[i / 8] & (1 << (i & 7))) >> (i & 7); if (estimated_output_bit[i] != test_input_bit[i]) { - if(errors_bit == 0) - printf("First bit in error in decoding in frame %d = %d\n", frame, i); - errors_bit++; + if(errors_decoding == 0) + printf("\x1B[34m""[frame %d][trial %d]\t1st bit in error in decoding = %d\n" "\x1B[0m", frame, trial, i); + errors_decoding++; } } - //////////////////////////////////////////////////////////// - - if (errors_scrambling > 0) { - if (n_trials == 1) - printf("frame %d, errors_scrambling = %d (trial %d)\n", frame, errors_scrambling, trial); - } - - if (errors_bit > 0) { - frames_in_error++; + if (errors_decoding > 0) { + is_frame_in_error = 1; n_false_positive++; - - if (n_trials == 1) - printf("frame %d, errors_bit = %d (trial %d)\n", frame, errors_bit, trial); - - printf("*****************************************\n"); - printf("SNR %f, (false positive %f)\n", SNR, - (float) n_false_positive / (float) n_trials); - printf("*****************************************\n"); - printf("\n"); + printf("\x1B[31m""[frame %d][trial %d]\tnumber of errors in decoding = %d\n" "\x1B[0m", frame, trial, errors_decoding); + } else { + is_frame_in_error = 0; + break; } - } // [hna] for (trial = 0; trial < n_trials; trial++) + //////////////////////////////////////////////////////////// + } // trial loop - if (errors_bit == 0) + if (is_frame_in_error == 1) break; - } // [hna] for (SNR = snr0; SNR < snr1; SNR += snr_step) - } // frame loop + } // frame loop - if(frames_in_error == 0) { + if(is_frame_in_error == 0) + break; + } // SNR loop + + if(is_frame_in_error == 0) { + printf("\n"); printf("*************\n"); printf("PUSCH test OK\n"); printf("*************\n"); -- 2.26.2