diff --git a/ci-scripts/oai-ci-vm-tool b/ci-scripts/oai-ci-vm-tool index 3d9fb87cba..f5ede896a7 100755 --- a/ci-scripts/oai-ci-vm-tool +++ b/ci-scripts/oai-ci-vm-tool @@ -252,7 +252,7 @@ case $key in VM_NAME=ci-phy-sim ARCHIVES_LOC=phy_sim LOG_PATTERN=.Rel15.txt - NB_PATTERN_FILES=10 + NB_PATTERN_FILES=11 BUILD_OPTIONS="--phy_simulators" VM_MEMORY=8192 RUN_OPTIONS="./run_exec_autotests.bash -g \"01510*\" -q -np -b" @@ -331,7 +331,7 @@ case $key in VM_NAME=ci-phy-sim ARCHIVES_LOC=phy_sim LOG_PATTERN=.Rel15.txt - NB_PATTERN_FILES=10 + NB_PATTERN_FILES=11 BUILD_OPTIONS="--phy_simulators" VM_MEMORY=8192 RUN_OPTIONS="./run_exec_autotests.bash -g \"01510*\" -q -np -b" diff --git a/cmake_targets/CMakeLists.txt b/cmake_targets/CMakeLists.txt index 4b52a2b2d8..4e05552c1a 100644 --- a/cmake_targets/CMakeLists.txt +++ b/cmake_targets/CMakeLists.txt @@ -1299,6 +1299,7 @@ set(PHY_SRC_UE ${PHY_POLARSRC} ${PHY_SMALLBLOCKSRC} ${PHY_LDPCSRC} + ${OPENAIR1_DIR}/PHY/NR_TRANSPORT/pucch_rx.c # added by prasanth ) set(PHY_NR_UE_SRC @@ -2551,6 +2552,14 @@ add_executable(nr_pbchsim ${T_SOURCE}) target_link_libraries(nr_pbchsim -Wl,--start-group UTIL SIMU PHY_COMMON PHY_NR PHY_NR_UE SCHED_NR_LIB CONFIG_LIB -Wl,--end-group m pthread ${ATLAS_LIBRARIES} ${T_LIB} dl) +#PUCCH ---> Prashanth +add_executable(nr_pucchsim + ${OPENAIR1_DIR}/SIMULATION/NR_PHY/pucchsim.c + ${OPENAIR_DIR}/common/utils/backtrace.c + ${T_SOURCE}) +target_link_libraries(nr_pucchsim -Wl,--start-group UTIL SIMU PHY_COMMON PHY_NR PHY_NR_UE SCHED_NR_LIB CONFIG_LIB -Wl,--end-group m pthread ${ATLAS_LIBRARIES} ${T_LIB} dl) +#PUCCH ---> Prashanth + add_executable(nr_dlsim ${OPENAIR1_DIR}/SIMULATION/NR_PHY/dlsim.c ${OPENAIR_DIR}/common/utils/backtrace.c diff --git a/cmake_targets/build_oai b/cmake_targets/build_oai index e99d84a134..ecd53cc87c 100755 --- a/cmake_targets/build_oai +++ b/cmake_targets/build_oai @@ -684,7 +684,7 @@ function main() { echo_info "Compiling unitary tests simulators" # TODO: fix: dlsim_tm4 pucchsim prachsim pdcchsim pbchsim mbmssim #simlist="dlsim_tm4 dlsim ulsim pucchsim prachsim pdcchsim pbchsim mbmssim" - simlist="dlsim ulsim polartest ldpctest smallblocktest nr_pbchsim nr_dlschsim nr_dlsim nr_ulschsim" + simlist="nr_pucchsim dlsim ulsim polartest ldpctest smallblocktest nr_pbchsim nr_dlschsim nr_dlsim nr_ulschsim" for f in $simlist ; do compilations \ phy_simulators $f \ diff --git a/openair1/PHY/NR_TRANSPORT/pucch_rx.c b/openair1/PHY/NR_TRANSPORT/pucch_rx.c new file mode 100644 index 0000000000..3513c198cb --- /dev/null +++ b/openair1/PHY/NR_TRANSPORT/pucch_rx.c @@ -0,0 +1,163 @@ +#include +#include +#include +#include +#include +#include +#include + +#include "PHY/impl_defs_nr.h" +#include "PHY/defs_nr_common.h" +#include "PHY/defs_nr_UE.h" +#include "PHY/NR_UE_TRANSPORT/pucch_nr.h" +#include "PHY/NR_UE_TRANSPORT/nr_transport_proto_ue.h" + +#include "common/utils/LOG/log.h" +#include "common/utils/LOG/vcd_signal_dumper.h" + +#include "T.h" + + +void nr_decode_pucch0( int32_t **rxdataF, + pucch_GroupHopping_t pucch_GroupHopping, + uint32_t n_id, // hoppingID higher layer parameter + uint8_t *payload, + NR_DL_FRAME_PARMS *frame_parms, + int16_t amp, + int nr_tti_tx, + uint8_t m0, // should come from resource set + uint8_t nrofSymbols, // should come from resource set + uint8_t startingSymbolIndex, // should come from resource set + uint16_t startingPRB, // should come from resource set + uint8_t nr_bit) { // is number of UCI bits to be decoded + int nr_sequences; + const uint8_t *mcs; + if(nr_bit==1){ + mcs=table1_mcs; + nr_sequences=4; + } + else{ + mcs=table2_mcs; + nr_sequences=8; + } + /* + * Implement TS 38.211 Subclause 6.3.2.3.1 Sequence generation + * + */ + /* + * Defining cyclic shift hopping TS 38.211 Subclause 6.3.2.2.2 + */ + // alpha is cyclic shift + double alpha; + // lnormal is the OFDM symbol number in the PUCCH transmission where l=0 corresponds to the first OFDM symbol of the PUCCH transmission + //uint8_t lnormal; + // lprime is the index of the OFDM symbol in the slot that corresponds to the first OFDM symbol of the PUCCH transmission in the slot given by [5, TS 38.213] + //uint8_t lprime; + // mcs is provided by TC 38.213 subclauses 9.2.3, 9.2.4, 9.2.5 FIXME! + //uint8_t mcs; + + /* + * in TS 38.213 Subclause 9.2.1 it is said that: + * for PUCCH format 0 or PUCCH format 1, the index of the cyclic shift + * is indicated by higher layer parameter PUCCH-F0-F1-initial-cyclic-shift + */ + + /* + * Implementing TS 38.211 Subclause 6.3.2.3.1, the sequence x(n) shall be generated according to: + * x(l*12+n) = r_u_v_alpha_delta(n) + */ + // the value of u,v (delta always 0 for PUCCH) has to be calculated according to TS 38.211 Subclause 6.3.2.2.1 + uint8_t u=0,v=0;//,delta=0; + // if frequency hopping is disabled by the higher-layer parameter PUCCH-frequency-hopping + // n_hop = 0 + // if frequency hopping is enabled by the higher-layer parameter PUCCH-frequency-hopping + // n_hop = 0 for first hop + // n_hop = 1 for second hop + uint8_t n_hop = 0; + //uint8_t PUCCH_Frequency_Hopping; // from higher layers FIXME!! + + // x_n contains the sequence r_u_v_alpha_delta(n) + int16_t x_n_re[nr_sequences][24],x_n_im[nr_sequences][24]; + int n,i,l; + for(i=0;i>15) + - (((int32_t)(round(32767*sin(alpha*n))) * table_5_2_2_2_2_Im[u][n])>>15)))>>15); // Re part of base sequence shifted by alpha + x_n_im[i][(12*l)+n] =(int16_t)((int32_t)(amp)* (int16_t)(((((int32_t)(round(32767*cos(alpha*n))) * table_5_2_2_2_2_Im[u][n])>>15) + + (((int32_t)(round(32767*sin(alpha*n))) * table_5_2_2_2_2_Re[u][n])>>15)))>>15); // Im part of base sequence shifted by alpha + #ifdef DEBUG_NR_PUCCH_TX + printf("\t [nr_generate_pucch0] sequence generation \tu=%d \tv=%d \talpha=%lf \tx_n(l=%d,n=%d)=(%d,%d)\n", + u,v,alpha,l,n,x_n_re[(12*l)+n],x_n_im[(12*l)+n]); + #endif + } + } + } + int16_t r_re[24],r_im[24]; + /* + * Implementing TS 38.211 Subclause 6.3.2.3.2 Mapping to physical resources FIXME! + */ + uint32_t re_offset=0; + for (l=0; lN_RB_DL>>1)) && ((frame_parms->N_RB_DL & 1) == 0)) { // if number RBs in bandwidth is even and current PRB is lower band + re_offset = ((l+startingSymbolIndex)*frame_parms->ofdm_symbol_size) + (12*startingPRB) + frame_parms->first_carrier_offset; + } + if ((startingPRB >= (frame_parms->N_RB_DL>>1)) && ((frame_parms->N_RB_DL & 1) == 0)) { // if number RBs in bandwidth is even and current PRB is upper band + re_offset = ((l+startingSymbolIndex)*frame_parms->ofdm_symbol_size) + (12*(startingPRB-(frame_parms->N_RB_DL>>1))); + } + if ((startingPRB < (frame_parms->N_RB_DL>>1)) && ((frame_parms->N_RB_DL & 1) == 1)) { // if number RBs in bandwidth is odd and current PRB is lower band + re_offset = ((l+startingSymbolIndex)*frame_parms->ofdm_symbol_size) + (12*startingPRB) + frame_parms->first_carrier_offset; + } + if ((startingPRB > (frame_parms->N_RB_DL>>1)) && ((frame_parms->N_RB_DL & 1) == 1)) { // if number RBs in bandwidth is odd and current PRB is upper band + re_offset = ((l+startingSymbolIndex)*frame_parms->ofdm_symbol_size) + (12*(startingPRB-(frame_parms->N_RB_DL>>1))) + 6; + } + if ((startingPRB == (frame_parms->N_RB_DL>>1)) && ((frame_parms->N_RB_DL & 1) == 1)) { // if number RBs in bandwidth is odd and current PRB contains DC + re_offset = ((l+startingSymbolIndex)*frame_parms->ofdm_symbol_size) + (12*startingPRB) + frame_parms->first_carrier_offset; + } + for (n=0; n<12; n++){ + if ((n==6) && (startingPRB == (frame_parms->N_RB_DL>>1)) && ((frame_parms->N_RB_DL & 1) == 1)) { + // if number RBs in bandwidth is odd and current PRB contains DC, we need to recalculate the offset when n=6 (for second half PRB) + re_offset = ((l+startingSymbolIndex)*frame_parms->ofdm_symbol_size); + } + r_re[(12*l)+n]=((int16_t *)&rxdataF[0][re_offset])[0]; + r_im[(12*l)+n]=((int16_t *)&rxdataF[0][re_offset])[1]; + #ifdef DEBUG_NR_PUCCH_TX + printf("\t [nr_generate_pucch0] mapping to RE \t amp=%d \tofdm_symbol_size=%d \tN_RB_DL=%d \tfirst_carrier_offset=%d \ttxptr(%d)=(x_n(l=%d,n=%d)=(%d,%d))\n", + amp,frame_parms->ofdm_symbol_size,frame_parms->N_RB_DL,frame_parms->first_carrier_offset,re_offset, + l,n,((int16_t *)&rxdataF[0][re_offset])[0],((int16_t *)&rxdataF[0][re_offset])[1]); + #endif + re_offset++; + } + } + double corr[nr_sequences],corr_re[nr_sequences],corr_im[nr_sequences]; + memset(corr,0,nr_sequences*sizeof(double)); + memset(corr_re,0,nr_sequences*sizeof(double)); + memset(corr_im,0,nr_sequences*sizeof(double)); + for(i=0;imax_corr){ + index= i; + max_corr=corr[i]; + } + } + *payload=(uint8_t)index; // payload bits 00..b3b2b0, b0 is the SR bit and b3b2 are HARQ bits +} + diff --git a/openair1/PHY/NR_UE_TRANSPORT/pucch_nr.c b/openair1/PHY/NR_UE_TRANSPORT/pucch_nr.c index 41b055a7ff..2771874bd3 100644 --- a/openair1/PHY/NR_UE_TRANSPORT/pucch_nr.c +++ b/openair1/PHY/NR_UE_TRANSPORT/pucch_nr.c @@ -48,14 +48,12 @@ #endif //#define ONE_OVER_SQRT2 23170 // 32767/sqrt(2) = 23170 (ONE_OVER_SQRT2) -void nr_group_sequence_hopping (//pucch_GroupHopping_t ue->pucch_config_common_nr.puch_GroupHopping, - //uint8_t PUCCH_GroupHopping, - PHY_VARS_NR_UE *ue, - //uint32_t n_id, - uint8_t n_hop, - int nr_tti_tx, - uint8_t *u, - uint8_t *v) { +void nr_group_sequence_hopping (pucch_GroupHopping_t PUCCH_GroupHopping, + uint32_t n_id, + uint8_t n_hop, + int nr_tti_tx, + uint8_t *u, + uint8_t *v) { /* * Implements TS 38.211 subclause 6.3.2.2.1 Group and sequence hopping * The following variables are set by higher layers: @@ -69,12 +67,12 @@ void nr_group_sequence_hopping (//pucch_GroupHopping_t ue->pucch_config_common_n * n_hop=1 for the second hop */ // depending on the value of the PUCCH_GroupHopping, we will obtain different values for u,v - pucch_GroupHopping_t PUCCH_GroupHopping = ue->pucch_config_common_nr->pucch_GroupHopping; // from higher layers FIXME!!! + //pucch_GroupHopping_t PUCCH_GroupHopping = ue->pucch_config_common_nr->pucch_GroupHopping; // from higher layers FIXME!!! // n_id defined as per TS 38.211 subclause 6.3.2.2.1 (is given by the higher-layer parameter hoppingId) // it is hoppingId from PUCCH-ConfigCommon: // Cell-Specific scrambling ID for group hoppping and sequence hopping if enabled // Corresponds to L1 parameter 'HoppingID' (see 38.211, section 6.3.2.2) BIT STRING (SIZE (10)) - uint16_t n_id = ue->pucch_config_common_nr->hoppingId; // from higher layers FIXME!!! + //uint16_t n_id = ue->pucch_config_common_nr->hoppingId; // from higher layers FIXME!!! #ifdef DEBUG_NR_PUCCH_TX // initialization to be removed PUCCH_GroupHopping=neither; @@ -84,8 +82,8 @@ void nr_group_sequence_hopping (//pucch_GroupHopping_t ue->pucch_config_common_n uint8_t f_ss=0,f_gh=0; *u=0; *v=0; - uint32_t c_init = (1<<5)*floor(n_id/30)+(n_id%30); // we initialize c_init to calculate u,v - uint32_t x1,s = lte_gold_generic(&x1, &c_init, 1); // TS 38.211 Subclause 5.2.1 + uint32_t c_init = 0; + uint32_t x1,s; // TS 38.211 Subclause 5.2.1 int l = 32, minShift = ((2*nr_tti_tx+n_hop)<<3); int tmpShift =0; #ifdef DEBUG_NR_PUCCH_TX @@ -97,6 +95,8 @@ void nr_group_sequence_hopping (//pucch_GroupHopping_t ue->pucch_config_common_n } if (PUCCH_GroupHopping == enable) { // PUCCH_GroupHopping 'enabled' + c_init = floor(n_id/30); // we initialize c_init to calculate u,v according to 6.3.2.2.1 of 38.211 + s = lte_gold_generic(&x1, &c_init, 1); // TS 38.211 Subclause 5.2.1 for (int m=0; m<8; m++) { while(minShift >= l) { s = lte_gold_generic(&x1, &c_init, 0); @@ -118,6 +118,8 @@ void nr_group_sequence_hopping (//pucch_GroupHopping_t ue->pucch_config_common_n } if (PUCCH_GroupHopping == disable) { // PUCCH_GroupHopping 'disabled' + c_init = (1<<5)*floor(n_id/30)+(n_id%30); // we initialize c_init to calculate u,v + s = lte_gold_generic(&x1, &c_init, 1); // TS 38.211 Subclause 5.2.1 f_ss = n_id%30; l = 32, minShift = (2*nr_tti_tx+n_hop); @@ -137,7 +139,7 @@ void nr_group_sequence_hopping (//pucch_GroupHopping_t ue->pucch_config_common_n #endif } -double nr_cyclic_shift_hopping(PHY_VARS_NR_UE *ue, +double nr_cyclic_shift_hopping(uint32_t n_id, uint8_t m0, uint8_t mcs, uint8_t lnormal, @@ -153,7 +155,7 @@ double nr_cyclic_shift_hopping(PHY_VARS_NR_UE *ue, */ // alpha_init initialized to 2*PI/12=0.5235987756 double alpha = 0.5235987756; - uint32_t c_init = ue->pucch_config_common_nr->hoppingId; // we initialize c_init again to calculate n_cs + uint32_t c_init = n_id; // we initialize c_init again to calculate n_cs #ifdef DEBUG_NR_PUCCH_TX // initialization to be remo.ved c_init=10; @@ -246,8 +248,8 @@ void nr_generate_pucch0(PHY_VARS_NR_UE *ue, for (int l=0; lpucch_config_common_nr->pucch_GroupHopping,ue->pucch_config_common_nr->hoppingId,n_hop,nr_tti_tx,&u,&v); // calculating u and v value + alpha = nr_cyclic_shift_hopping(ue->pucch_config_common_nr->hoppingId,m0,mcs,l,startingSymbolIndex,nr_tti_tx); #ifdef DEBUG_NR_PUCCH_TX printf("\t [nr_generate_pucch0] sequence generation \tu=%d \tv=%d \talpha=%lf \t(for symbol l=%d)\n",u,v,alpha,l); #endif @@ -435,8 +437,8 @@ void nr_generate_pucch1(PHY_VARS_NR_UE *ue, printf("\t [nr_generate_pucch1] entering function nr_group_sequence_hopping with n_hop=%d, nr_tti_tx=%d\n", n_hop,nr_tti_tx); #endif - nr_group_sequence_hopping(ue,n_hop,nr_tti_tx,&u,&v); // calculating u and v value - alpha = nr_cyclic_shift_hopping(ue,m0,mcs,l,lprime,nr_tti_tx); + nr_group_sequence_hopping(ue->pucch_config_common_nr->pucch_GroupHopping,ue->pucch_config_common_nr->hoppingId,n_hop,nr_tti_tx,&u,&v); // calculating u and v value + alpha = nr_cyclic_shift_hopping(ue->pucch_config_common_nr->hoppingId,m0,mcs,l,lprime,nr_tti_tx); for (int n=0; n<12; n++) { r_u_v_alpha_delta_re[n] = (int16_t)(((((int32_t)(round(32767*cos(alpha*n))) * table_5_2_2_2_2_Re[u][n])>>15) @@ -753,8 +755,8 @@ void nr_generate_pucch1_old(PHY_VARS_NR_UE *ue, printf("\t [nr_generate_pucch1] entering function nr_group_sequence_hopping with n_hop=%d, nr_tti_tx=%d\n", n_hop,nr_tti_tx); #endif - nr_group_sequence_hopping(ue,n_hop,nr_tti_tx,&u,&v); // calculating u and v value - alpha = nr_cyclic_shift_hopping(ue,m0,mcs,lnormal,lprime,nr_tti_tx); + nr_group_sequence_hopping(ue->pucch_config_common_nr->pucch_GroupHopping,ue->pucch_config_common_nr->hoppingId,n_hop,nr_tti_tx,&u,&v); // calculating u and v value + alpha = nr_cyclic_shift_hopping(ue->pucch_config_common_nr->hoppingId,m0,mcs,lnormal,lprime,nr_tti_tx); for (int n=0; n<12; n++) { r_u_v_alpha_delta_re[n] = (int16_t)(((((int32_t)(round(32767*cos(alpha*n))) * table_5_2_2_2_2_Re[u][n])>>15) @@ -1571,7 +1573,7 @@ void nr_generate_pucch3_4(PHY_VARS_NR_UE *ue, for (int l=0; l= (int)floor(nrofSymbols/2))) n_hop = 1; // n_hop = 1 for second hop - nr_group_sequence_hopping(ue,n_hop,nr_tti_tx,&u,&v); // calculating u and v value + nr_group_sequence_hopping(ue->pucch_config_common_nr->pucch_GroupHopping,ue->pucch_config_common_nr->hoppingId,n_hop,nr_tti_tx,&u,&v); // calculating u and v value // Next we proceed to calculate base sequence for DM-RS signal, according to TS 38.211 subclause 6.4.1.33 if (nrofPRB >= 3) { // TS 38.211 subclause 5.2.2.1 (Base sequences of length 36 or larger) applies @@ -1617,7 +1619,7 @@ void nr_generate_pucch3_4(PHY_VARS_NR_UE *ue, } uint16_t j=0; - alpha = nr_cyclic_shift_hopping(ue,m0,mcs,l,startingSymbolIndex,nr_tti_tx); + alpha = nr_cyclic_shift_hopping(ue->pucch_config_common_nr->hoppingId,m0,mcs,l,startingSymbolIndex,nr_tti_tx); for (int rb=0; rbpucch_config_common_nr.puch_GroupHopping, - //uint8_t PUCCH_GroupHopping, - PHY_VARS_NR_UE *ue, - //uint32_t n_id, +void nr_decode_pucch0( int32_t **rxdataF, + pucch_GroupHopping_t PUCCH_GroupHopping, + uint32_t n_id, //PHY_VARS_gNB *gNB, generally rxdataf is in gNB->common_vars + uint8_t *payload, + NR_DL_FRAME_PARMS *frame_parms, + int16_t amp, + int nr_tti_tx, + uint8_t m0, // should come from resource set + uint8_t nrofSymbols, // should come from resource set + uint8_t startingSymbolIndex, // should come from resource set + uint16_t startingPRB, // should come from resource set + uint8_t nr_bit); + +void nr_group_sequence_hopping (pucch_GroupHopping_t PUCCH_GroupHopping, + uint32_t n_id, uint8_t n_hop, int nr_tti_tx, uint8_t *u, uint8_t *v); -double nr_cyclic_shift_hopping(PHY_VARS_NR_UE *ue, +double nr_cyclic_shift_hopping(uint32_t n_id, uint8_t m0, uint8_t mcs, uint8_t lnormal, @@ -111,6 +122,11 @@ void nr_generate_pucch3_4(PHY_VARS_NR_UE *ue, uint8_t nr_bit, uint8_t occ_length_format4, uint8_t occ_index_format4); + +// tables for mcs values for different payloads + static const uint8_t table1_mcs[]={0,3,6,9}; + static const uint8_t table2_mcs[]={0,1,3,4,6,7,9,10}; + /* * The following tables implement TS 38.211 Subclause 5.2.2.2 Base sequences of length less than 36 (rows->u {0,1,..,29} / columns->n {0,1,...,M_ZC-1) * Where base sequence r_u_v(n)=exp[j*phi(n)*pi/4] 0<=n<=M_ZC-1 and M_ZC={6,12,18,24} diff --git a/openair1/SIMULATION/NR_PHY/pucchsim.c b/openair1/SIMULATION/NR_PHY/pucchsim.c new file mode 100644 index 0000000000..19e0e7dc25 --- /dev/null +++ b/openair1/SIMULATION/NR_PHY/pucchsim.c @@ -0,0 +1,542 @@ +/* + * 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 + */ + +#include +#include +#include +#include +#include +#include + +#include "common/config/config_userapi.h" +#include "common/utils/LOG/log.h" +#include "common/ran_context.h" + +#include "SIMULATION/TOOLS/sim.h" +#include "SIMULATION/RF/rf.h" +#include "PHY/types.h" +#include "PHY/defs_nr_common.h" +#include "PHY/defs_nr_UE.h" +#include "PHY/defs_gNB.h" +#include "PHY/NR_REFSIG/refsig_defs_ue.h" +#include "PHY/NR_REFSIG/nr_mod_table.h" +#include "PHY/MODULATION/modulation_eNB.h" +#include "PHY/MODULATION/modulation_UE.h" +#include "PHY/INIT/phy_init.h" +#include "PHY/NR_TRANSPORT/nr_transport.h" +#include "PHY/NR_UE_TRANSPORT/nr_transport_proto_ue.h" + +#include "SCHED_NR/sched_nr.h" + +#include "PHY/NR_UE_TRANSPORT/pucch_nr.h" + + +PHY_VARS_gNB *gNB; +PHY_VARS_NR_UE *UE; +RAN_CONTEXT_t RC; +openair0_config_t openair0_cfg[MAX_CARDS]; + +double cpuf; + +// dummy functions +int nfapi_mode=0; +int oai_nfapi_hi_dci0_req(nfapi_hi_dci0_request_t *hi_dci0_req) { return(0);} +int oai_nfapi_tx_req(nfapi_tx_request_t *tx_req) { return(0); } + +int oai_nfapi_dl_config_req(nfapi_dl_config_request_t *dl_config_req) { return(0); } + +int oai_nfapi_ul_config_req(nfapi_ul_config_request_t *ul_config_req) { return(0); } + +int oai_nfapi_nr_dl_config_req(nfapi_nr_dl_config_request_t *dl_config_req) {return(0);} + +uint32_t from_nrarfcn(int nr_bandP,uint32_t dl_nrarfcn) {return(0);} +int32_t get_uldl_offset(int nr_bandP) {return(0);} + +NR_IF_Module_t *NR_IF_Module_init(int Mod_id){return(NULL);} + +void exit_function(const char* file, const char* function, const int line,const char *s) { + const char * msg= s==NULL ? "no comment": s; + printf("Exiting at: %s:%d %s(), %s\n", file, line, function, msg); + exit(-1); +} + +// needed for some functions +PHY_VARS_NR_UE * PHY_vars_UE_g[1][1]={{NULL}}; + +int main(int argc, char **argv) +{ + + char c; + + int i,aa;//,l; + double sigma2, sigma2_dB=10,SNR,snr0=-2.0,snr1=2.0; + double cfo=0; + uint8_t snr1set=0; + int **txdata; + double **s_re,**s_im,**r_re,**r_im; + // int sync_pos, sync_pos_slot; + // FILE *rx_frame_file; + FILE *output_fd = NULL; + uint8_t write_output_file=0; + //int result; + //int freq_offset; + // int subframe_offset; + // char fname[40], vname[40]; + int trial,n_trials=1,n_errors=0; + uint8_t transmission_mode = 1,n_tx=1,n_rx=1; + uint16_t Nid_cell=0; + uint64_t SSB_positions=0x01; + + channel_desc_t *gNB2UE; + + uint8_t extended_prefix_flag=0; + int8_t interf1=-21,interf2=-21; + + FILE *input_fd=NULL,*pbch_file_fd=NULL; + + //uint32_t nsymb,tx_lev,tx_lev1 = 0,tx_lev2 = 0; + //char input_val_str[50],input_val_str2[50]; + //uint8_t frame_mod4,num_pdcch_symbols = 0; + //double pbch_sinr; + //int pbch_tx_ant; + + SCM_t channel_model=AWGN;//Rayleigh1_anticorr; + + + int N_RB_DL=273,mu=1; + + unsigned char frame_type = 0; + unsigned char pbch_phase = 0; + + int frame=0,subframe=0; + int frame_length_complex_samples; + int frame_length_complex_samples_no_prefix; + NR_DL_FRAME_PARMS *frame_parms; + nfapi_nr_config_request_t *gNB_config; + + int loglvl=OAILOG_WARNING; + + cpuf = get_cpu_freq_GHz(); + + if ( load_configmodule(argc,argv) == 0) { + exit_fun("[SOFTMODEM] Error, configuration module init failed\n"); + } + + randominit(0); + + while ((c = getopt (argc, argv, "f:hA:pf:g:i:j:n:o:s:S:t:x:y:z:N:F:GR:dP:IL:")) != -1) { + switch (c) { + case 'f': + write_output_file=1; + output_fd = fopen(optarg,"w"); + + if (output_fd==NULL) { + printf("Error opening %s\n",optarg); + exit(-1); + } + + break; + + case 'd': + frame_type = 1; + break; + + case 'g': + switch((char)*optarg) { + case 'A': + channel_model=SCM_A; + break; + + case 'B': + channel_model=SCM_B; + break; + + case 'C': + channel_model=SCM_C; + break; + + case 'D': + channel_model=SCM_D; + break; + + case 'E': + channel_model=EPA; + break; + + case 'F': + channel_model=EVA; + break; + + case 'G': + channel_model=ETU; + break; + + default: + msg("Unsupported channel model!\n"); + exit(-1); + } + + break; + + case 'i': + interf1=atoi(optarg); + break; + + case 'j': + interf2=atoi(optarg); + break; + + case 'n': + n_trials = atoi(optarg); + break; + + case 'o': + cfo = atof(optarg); + msg("Setting CFO to %f Hz\n",cfo); + break; + + case 's': + snr0 = atof(optarg); + msg("Setting SNR0 to %f\n",snr0); + break; + + case 'S': + snr1 = atof(optarg); + snr1set=1; + msg("Setting SNR1 to %f\n",snr1); + break; + + /* + case 't': + Td= atof(optarg); + break; + */ + case 'p': + extended_prefix_flag=1; + break; + + /* + case 'r': + ricean_factor = pow(10,-.1*atof(optarg)); + if (ricean_factor>1) { + printf("Ricean factor must be between 0 and 1\n"); + exit(-1); + } + break; + */ + case 'x': + transmission_mode=atoi(optarg); + + if ((transmission_mode!=1) && + (transmission_mode!=2) && + (transmission_mode!=6)) { + msg("Unsupported transmission mode %d\n",transmission_mode); + exit(-1); + } + + break; + + case 'y': + n_tx=atoi(optarg); + + if ((n_tx==0) || (n_tx>2)) { + msg("Unsupported number of tx antennas %d\n",n_tx); + exit(-1); + } + + break; + + case 'z': + n_rx=atoi(optarg); + + if ((n_rx==0) || (n_rx>2)) { + msg("Unsupported number of rx antennas %d\n",n_rx); + exit(-1); + } + + break; + + case 'N': + Nid_cell = atoi(optarg); + break; + + case 'R': + N_RB_DL = atoi(optarg); + break; + + case 'F': + input_fd = fopen(optarg,"r"); + + if (input_fd==NULL) { + printf("Problem with filename %s\n",optarg); + exit(-1); + } + + break; + + case 'P': + pbch_phase = atoi(optarg); + + if (pbch_phase>3) + printf("Illegal PBCH phase (0-3) got %d\n",pbch_phase); + + break; + + case 'L': + loglvl = atoi(optarg); + break; + + default: + case 'h': + printf("%s -h(elp) -p(extended_prefix) -N cell_id -f output_filename -F input_filename -g channel_model -n n_frames -t Delayspread -s snr0 -S snr1 -x transmission_mode -y TXant -z RXant -i Intefrence0 -j Interference1 -A interpolation_file -C(alibration offset dB) -N CellId\n", + argv[0]); + printf("-h This message\n"); + printf("-p Use extended prefix mode\n"); + printf("-d Use TDD\n"); + printf("-n Number of frames to simulate\n"); + printf("-s Starting SNR, runs from SNR0 to SNR0 + 5 dB. If n_frames is 1 then just SNR is simulated\n"); + printf("-S Ending SNR, runs from SNR0 to SNR1\n"); + printf("-t Delay spread for multipath channel\n"); + printf("-g [A,B,C,D,E,F,G] Use 3GPP SCM (A,B,C,D) or 36-101 (E-EPA,F-EVA,G-ETU) models (ignores delay spread and Ricean factor)\n"); + printf("-x Transmission mode (1,2,6 for the moment)\n"); + printf("-y Number of TX antennas used in eNB\n"); + printf("-z Number of RX antennas used in UE\n"); + printf("-i Relative strength of first intefering eNB (in dB) - cell_id mod 3 = 1\n"); + printf("-j Relative strength of second intefering eNB (in dB) - cell_id mod 3 = 2\n"); + printf("-o Carrier frequency offset in Hz\n"); + printf("-N Nid_cell\n"); + printf("-R N_RB_DL\n"); + printf("-O oversampling factor (1,2,4,8,16)\n"); + printf("-A Interpolation_filname Run with Abstraction to generate Scatter plot using interpolation polynomial in file\n"); + // printf("-C Generate Calibration information for Abstraction (effective SNR adjustment to remove Pe bias w.r.t. AWGN)\n"); + printf("-f Output filename (.txt format) for Pe/SNR results\n"); + printf("-F Input filename (.txt format) for RX conformance testing\n"); + exit (-1); + break; + } + } + + logInit(); + set_glog(loglvl); + T_stdout = 1; + + if (snr1set==0) + snr1 = snr0+10; + + printf("Initializing gNodeB for mu %d, N_RB_DL %d\n",mu,N_RB_DL); + + RC.gNB = (PHY_VARS_gNB***) malloc(sizeof(PHY_VARS_gNB **)); + RC.gNB[0] = (PHY_VARS_gNB**) malloc(sizeof(PHY_VARS_gNB *)); + RC.gNB[0][0] = malloc(sizeof(PHY_VARS_gNB)); + gNB = RC.gNB[0][0]; + gNB_config = &gNB->gNB_config; + frame_parms = &gNB->frame_parms; //to be initialized I suppose (maybe not necessary for PBCH) + frame_parms->nb_antennas_tx = n_tx; + frame_parms->nb_antennas_rx = n_rx; + frame_parms->N_RB_DL = N_RB_DL; + frame_parms->N_RB_UL = N_RB_DL; + frame_parms->Nid_cell = Nid_cell; + + nr_phy_config_request_sim(gNB,N_RB_DL,N_RB_DL,mu,Nid_cell,SSB_positions); + phy_init_nr_gNB(gNB,0,0); + + double fs,bw,scs,eps; + + if (mu == 1 && N_RB_DL == 217) { + fs = 122.88e6; + bw = 80e6; + scs = 30000; + } + else if (mu == 1 && N_RB_DL == 245) { + fs = 122.88e6; + bw = 90e6; + scs = 30000; + } + else if (mu == 1 && N_RB_DL == 273) { + fs = 122.88e6; + bw = 100e6; + scs = 30000; + } + else if (mu == 1 && N_RB_DL == 106) { + fs = 61.44e6; + bw = 40e6; + scs = 30000; + } + else AssertFatal(1==0,"Unsupported numerology for mu %d, N_RB %d\n",mu, N_RB_DL); + + // cfo with respect to sub-carrier spacing + eps = cfo/scs; + + // computation of integer and fractional FO to compare with estimation results + int IFO; + if(eps!=0.0){ + printf("Introducing a CFO of %lf relative to SCS of %d kHz\n",eps,(int)(scs/1000)); + if (eps>0) + IFO=(int)(eps+0.5); + else + IFO=(int)(eps-0.5); + printf("FFO = %lf; IFO = %d\n",eps-IFO,IFO); + } + + gNB2UE = new_channel_desc_scm(n_tx, + n_rx, + channel_model, + fs, + bw, + 0, + 0, + 0); + + if (gNB2UE==NULL) { + msg("Problem generating channel model. Exiting.\n"); + exit(-1); + } + + frame_length_complex_samples = frame_parms->samples_per_subframe*NR_NUMBER_OF_SUBFRAMES_PER_FRAME; + frame_length_complex_samples_no_prefix = frame_parms->samples_per_subframe_wCP; + + s_re = malloc(2*sizeof(double*)); + s_im = malloc(2*sizeof(double*)); + r_re = malloc(2*sizeof(double*)); + r_im = malloc(2*sizeof(double*)); + txdata = malloc(2*sizeof(int*)); + + for (i=0; i<2; i++) { + + s_re[i] = malloc(frame_length_complex_samples*sizeof(double)); + bzero(s_re[i],frame_length_complex_samples*sizeof(double)); + s_im[i] = malloc(frame_length_complex_samples*sizeof(double)); + bzero(s_im[i],frame_length_complex_samples*sizeof(double)); + + r_re[i] = malloc(frame_length_complex_samples*sizeof(double)); + bzero(r_re[i],frame_length_complex_samples*sizeof(double)); + r_im[i] = malloc(frame_length_complex_samples*sizeof(double)); + bzero(r_im[i],frame_length_complex_samples*sizeof(double)); + + printf("Allocating %d samples for txdata\n",frame_length_complex_samples); + txdata[i] = malloc(frame_length_complex_samples*sizeof(int)); + bzero(r_re[i],frame_length_complex_samples*sizeof(int)); + + } + if (pbch_file_fd!=NULL) { + load_pbch_desc(pbch_file_fd); + } + + + //configure UE + UE = malloc(sizeof(PHY_VARS_NR_UE)); + memcpy(&UE->frame_parms,frame_parms,sizeof(NR_DL_FRAME_PARMS)); + //phy_init_nr_top(UE); //called from init_nr_ue_signal + + UE->perfect_ce = 0; + + if(eps!=0.0) + UE->UE_fo_compensation = 1; // if a frequency offset is set then perform fo estimation and compensation + + if (init_nr_ue_signal(UE, 1, 0) != 0) + { + printf("Error at UE NR initialisation\n"); + exit(-1); + } + int16_t amp=0x1FFF; + int nr_tti_tx=0; //According to standards it is Slot number within a frame for subcarrier spacing configuration μ but not sure why he made the variable name so 4.3.2,38.211 + nr_gold_pbch(UE); + // generate signal +// pucch_config_common_nr should assign values for this if not done before structure in ue being used by functions + uint8_t actual_payload=0,payload_received;//payload bits b7b6...b2b1b0 where b7..b3=0 b2b1=HARQ b0 is SR. payload maximum value is 7 + uint8_t mcs; + int nr_bit=1; // maximum value possible is 2 +/*if(nr_bit==1){ + mcs=table1_mcs[actual_payload]; + } + else{ + mcs=table2_mcs[actual_payload]; + }*/ + uint8_t m0=0;// higher layer paramater initial cyclic shift + uint8_t nrofSymbols=1; //number of OFDM symbols can be 1-2 for format 1 + uint8_t startingSymbolIndex=0; // resource allocated see 9.2.1, 38.213 for more info.should be actually present in the resource set provided + uint16_t startingPRB=5; //PRB number not sure see 9.2.1, 38.213 for more info. Should be actually present in the resource set provided + pucch_GroupHopping_t PUCCH_GroupHopping=UE->pucch_config_common_nr->pucch_GroupHopping; + uint32_t n_id=UE->pucch_config_common_nr->hoppingId; + printf("\nsnr1=%f\n",snr1); + for(SNR=snr0;SNR<=snr1;SNR=SNR+1){ + n_errors = 0; + sigma2_dB = 20*log10((double)amp/32767)-SNR; + sigma2 = pow(10,sigma2_dB/10); + printf("entering SNR value %f\n",SNR); + for (trial=0; trialpucch_config_dedicated,amp,nr_tti_tx,m0,mcs,nrofSymbols,startingSymbolIndex,startingPRB); + + for (i=0; i1) + r_re[0][i]=1; + if(r_im[0][i]<-1) + r_im[0][i]=-1; + else if(r_im[0][i]>1) + r_im[0][0]=1; + ((int16_t *)txdata[0])[(i<<1)] = (int16_t)round(r_re[0][i]*32767); + ((int16_t *)txdata[0])[(i<<1)+1] =(int16_t)round(r_im[0][i]*32767); + + } + nr_decode_pucch0(txdata,PUCCH_GroupHopping,n_id,&(payload_received),frame_parms,amp,nr_tti_tx,m0,nrofSymbols,startingSymbolIndex,startingPRB,nr_bit); + n_errors=((actual_payload^payload_received)&1)+(((actual_payload^payload_received)&2)>>1)+(((actual_payload^payload_received)&4)>>2)+n_errors; + //printf("actual_payload=%x,payload_received=%x",actual_payload,payload_received); + } + printf("SNR=%f, n_trials=%d, n_bit_errors=%d\n",SNR,n_trials,n_errors); + } + for (i=0; i<2; i++) { + free(s_re[i]); + free(s_im[i]); + free(r_re[i]); + free(r_im[i]); + free(txdata[i]); + } + + free(s_re); + free(s_im); + free(r_re); + free(r_im); + free(txdata); + + if (output_fd) + fclose(output_fd); + + if (input_fd) + fclose(input_fd); + + return(n_errors); + +} + + +