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update dlsch coding and decoding

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This commit is contained in:
Hongzhi Wang
2018-10-04 09:33:45 +02:00
parent fae74fb8d4
commit fac57fd7d7
5 changed files with 50 additions and 22 deletions
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cmake_targets/CMakeLists.txt
+2
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@@ -1294,6 +1294,7 @@ set(PHY_SRC_UE
${OPENAIR1_DIR}/PHY/NR_TRANSPORT/nr_dci_tools.c
${OPENAIR1_DIR}/PHY/NR_TRANSPORT/nr_dlsch.c
${OPENAIR1_DIR}/PHY/NR_TRANSPORT/nr_dlsch_tools.c
${OPENAIR1_DIR}/PHY/NR_TRANSPORT/nr_dlsch_coding.c
${OPENAIR1_DIR}/PHY/NR_TRANSPORT/nr_tbs_tools.c
${OPENAIR1_DIR}/PHY/NR_REFSIG/nr_gold.c
${OPENAIR1_DIR}/PHY/TOOLS/file_output.c
@@ -1327,6 +1328,7 @@ set(PHY_SRC_UE
${OPENAIR1_DIR}/PHY/NR_UE_TRANSPORT/nr_dlsch_demodulation.c
${OPENAIR1_DIR}/PHY/NR_UE_TRANSPORT/nr_dlsch_decoding.c
${OPENAIR1_DIR}/PHY/NR_UE_TRANSPORT/nr_dlsch_llr_computation.c
${OPENAIR1_DIR}/PHY/NR_TRANSPORT/nr_tbs_tools.c
${OPENAIR1_DIR}/PHY/NR_UE_TRANSPORT/
${OPENAIR1_DIR}/PHY/NR_UE_TRANSPORT/srs_modulation_nr.c
${OPENAIR1_DIR}/PHY/NR_UE_TRANSPORT/dci_nr.c
openair1/PHY/NR_TRANSPORT/nr_dlsch.h
+5
View File
@@ -50,3 +50,8 @@ void nr_get_PRG_parms(NR_BWP_PARMS* bwp, NR_gNB_DCI_ALLOC_t dci_alloc, uint8_t p
uint8_t nr_get_Qm(uint8_t Imcs, uint8_t table_idx);
uint32_t nr_get_code_rate(uint8_t Imcs, uint8_t table_idx);
/** \brief Computes available bits G.
@param nb_rb, nb_symb_sch, nb_re_dmrs, length_dmrs */
uint32_t nr_get_G(uint16_t nb_rb, uint16_t nb_symb_sch,uint8_t nb_re_dmrs,uint16_t length_dmrs);
openair1/PHY/NR_TRANSPORT/nr_dlsch_coding.c
+25 -16
View File
@@ -37,6 +37,7 @@
#include "PHY/CODING/lte_interleaver_inline.h"
#include "PHY/NR_TRANSPORT/nr_transport.h"
#include "PHY/NR_TRANSPORT/nr_transport_common_proto.h"
#include "PHY/NR_TRANSPORT/nr_dlsch.h"
#include "SCHED_NR/sched_nr.h"
#include "defs.h"
#include "UTIL/LOG/vcd_signal_dumper.h"
@@ -85,11 +86,11 @@ void free_gNB_dlsch(NR_gNB_DLSCH_t *dlsch)
#endif
if (dlsch->harq_processes[i]->c[r]) {
free16(dlsch->harq_processes[i]->c[r],((r==0)?8:0) + 3+1056);
free16(dlsch->harq_processes[i]->c[r],1056);
dlsch->harq_processes[i]->c[r] = NULL;
}
if (dlsch->harq_processes[i]->d[r]) {
free16(dlsch->harq_processes[i]->d[r],(96+12+3+(3*8448)));
free16(dlsch->harq_processes[i]->d[r],3*8448);
dlsch->harq_processes[i]->d[r] = NULL;
}
@@ -109,7 +110,7 @@ NR_gNB_DLSCH_t *new_gNB_dlsch(unsigned char Kmimo,unsigned char Mdlharq,uint32_t
{
NR_gNB_DLSCH_t *dlsch;
unsigned char exit_flag = 0,i,j,r,aa,layer;
unsigned char exit_flag = 0,i,r,aa,layer;
int re;
unsigned char bw_scaling =1;
@@ -229,7 +230,7 @@ void clean_gNB_dlsch(NR_gNB_DLSCH_t *dlsch)
for (i=0; i<Mdlharq; i++) {
if (dlsch->harq_processes[i]) {
// dlsch->harq_processes[i]->Ndi = 0;
dlsch->harq_processes[i]->status = 0;
//dlsch->harq_processes[i]->status = 0;
dlsch->harq_processes[i]->round = 0;
for (j=0; j<96; j++)
@@ -242,7 +243,7 @@ void clean_gNB_dlsch(NR_gNB_DLSCH_t *dlsch)
}
}
int dlsch_encoding(PHY_VARS_gNB *gNB,
int nr_dlsch_encoding(PHY_VARS_gNB *gNB,
unsigned char *a,
uint8_t num_pdcch_symbols,
NR_gNB_DLSCH_t *dlsch,
@@ -255,31 +256,39 @@ int dlsch_encoding(PHY_VARS_gNB *gNB,
unsigned int G;
unsigned int crc=1;
unsigned short iind;
NR_DL_FRAME_PARMS *frame_parms = &gNB->frame_parms;
unsigned char harq_pid = dlsch->current_harq_pid;
unsigned char harq_pid = dlsch->harq_ids[subframe];
unsigned short nb_rb = dlsch->harq_processes[harq_pid]->nb_rb;
unsigned int A, Z;
unsigned *pz = &Z;
unsigned char mod_order;
unsigned int Kr=0,Kr_bytes,r,r_offset=0,Kr_int=0;
unsigned short m=dlsch->harq_processes[harq_pid]->mcs;
uint8_t beamforming_mode=0;
unsigned int Kr=0,r,r_offset=0;//Kr_bytes
//unsigned short m=dlsch->harq_processes[harq_pid]->mcs;
//uint8_t beamforming_mode=0;
uint8_t *d_tmp[MAX_NUM_DLSCH_SEGMENTS];
double rate = 0.33;
uint8_t kb,BG;
//double rate = 0.33;
uint8_t kb,BG=1;
uint32_t E;
uint8_t Ilbrm = 0;
uint32_t Tbslbrm = 950984; //to compute tbs
uint32_t Tbslbrm = 950984; //max tbs
uint16_t nb_symb_sch =2;
uint8_t nb_re_dmrs = 6;
uint16_t length_dmrs = 1;
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_ENB_DLSCH_ENCODING, VCD_FUNCTION_IN);
dlsch->harq_processes[harq_pid]->TBS= nr_compute_tbs(dlsch->harq_processes[harq_pid]->mcs,
nb_rb,nb_symb_sch,nb_re_dmrs,length_dmrs,
dlsch->harq_processes[harq_pid]->Nl);
A = dlsch->harq_processes[harq_pid]->TBS;
//printf("Encoder: A: %d frame.subframe %d.%d \n",A, frame,subframe);
mod_order = get_nr_Qm(dlsch->harq_processes[harq_pid]->mcs);
G = get_G(frame_parms,nb_rb,dlsch->harq_processes[harq_pid]->rb_alloc,mod_order,dlsch->harq_processes[harq_pid]->Nl,num_pdcch_symbols,frame,subframe,beamforming_mode);
G = nr_get_G(nb_rb, nb_symb_sch, nb_re_dmrs, length_dmrs);
Tbslbrm = nr_compute_tbs(28,nb_rb,frame_parms->symbols_per_slot,0,0, dlsch->harq_processes[harq_pid]->Nl);
// if (dlsch->harq_processes[harq_pid]->Ndi == 1) { // this is a new packet
if (dlsch->harq_processes[harq_pid]->round == 0) { // this is a new packet
@@ -324,7 +333,7 @@ int dlsch_encoding(PHY_VARS_gNB *gNB,
//printf("Encoder: B %d F %d \n",dlsch->harq_processes[harq_pid]->B, dlsch->harq_processes[harq_pid]->F);
Kr = dlsch->harq_processes[harq_pid]->K;
Kr_bytes = Kr>>3;
//Kr_bytes = Kr>>3;
start_meas(te_stats);
for (r=0; r<dlsch->harq_processes[harq_pid]->C; r++) {
@@ -394,7 +403,7 @@ int dlsch_encoding(PHY_VARS_gNB *gNB,
start_meas(i_stats);
nr_interleaving_ldpc(E,
&dlsch->harq_processes[harq_pid]->Qm,
dlsch->harq_processes[harq_pid]->Qm,
dlsch->harq_processes[harq_pid]->e+r_offset,
dlsch->harq_processes[harq_pid]->f+r_offset);
stop_meas(i_stats);
openair1/PHY/NR_TRANSPORT/nr_tbs_tools.c
+6
View File
@@ -79,3 +79,9 @@ uint32_t nr_get_code_rate(uint8_t Imcs, uint8_t table_idx) {
AssertFatal(0, "Invalid MCS table index %d (expected in range [1,3])\n", table_idx);
}
}
uint32_t nr_get_G(uint16_t nb_rb, uint16_t nb_symb_sch,uint8_t nb_re_dmrs,uint16_t length_dmrs) {
uint32_t G;
G = ((12*nb_symb_sch)-(nb_re_dmrs*length_dmrs))*nb_rb;
return(G);
}
openair1/PHY/NR_UE_TRANSPORT/nr_dlsch_decoding.c
+12 -6
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@@ -35,6 +35,7 @@
#include "PHY/CODING/coding_extern.h"
#include "PHY/CODING/coding_defs.h"
#include "PHY/NR_TRANSPORT/nr_transport_common_proto.h"
#include "PHY/NR_TRANSPORT/nr_dlsch.h"
//#include "SCHED/extern.h"
#include "SIMULATION/TOOLS/sim.h"
#include "targets/RT/USER/nr-uesoftmodem.h"
@@ -65,13 +66,13 @@ void free_nr_ue_dlsch(NR_UE_DLSCH_t *dlsch)
}
for (r=0; r<MAX_NUM_NR_DLSCH_SEGMENTS; r++) {
free16(dlsch->harq_processes[i]->c[r],((r==0)?8:0) + 3+1056);
free16(dlsch->harq_processes[i]->c[r],1056);
dlsch->harq_processes[i]->c[r] = NULL;
}
for (r=0; r<MAX_NUM_NR_DLSCH_SEGMENTS; r++)
if (dlsch->harq_processes[i]->d[r]) {
free16(dlsch->harq_processes[i]->d[r],((3*8*8448)+12+96)*sizeof(short));
free16(dlsch->harq_processes[i]->d[r],(3*8448)*sizeof(short));
dlsch->harq_processes[i]->d[r] = NULL;
}
@@ -201,8 +202,11 @@ uint32_t nr_dlsch_decoding(PHY_VARS_NR_UE *phy_vars_ue,
// int16_t *p_invd =&inv_d;
uint8_t kb, kc;
uint8_t Ilbrm = 0;
uint32_t Tbslbrm = 950984; //to compute tbs
uint16_t nb_prb = 106; //to update
uint32_t Tbslbrm = 950984;
uint16_t nb_rb = 106; //to update
uint16_t nb_symb_sch = 2;
uint8_t nb_re_dmrs = 6;
uint16_t length_dmrs = 1;
uint32_t i,j;
// uint32_t k;
@@ -252,10 +256,12 @@ uint32_t nr_dlsch_decoding(PHY_VARS_NR_UE *phy_vars_ue,
harq_process->trials[harq_process->round]++;
harq_process->TBS = nr_compute_tbs(harq_process->mcs,nb_rb,nb_symb_sch,nb_re_dmrs,length_dmrs, harq_process->Nl);
A = harq_process->TBS;
ret = dlsch->max_ldpc_iterations;
harq_process->G = nr_get_G(nb_rb, nb_symb_sch, nb_re_dmrs, length_dmrs);
G = harq_process->G;
//get_G(frame_parms,nb_rb,dlsch->rb_alloc,mod_order,num_pdcch_symbols,phy_vars_ue->frame,subframe);
@@ -326,7 +332,7 @@ uint32_t nr_dlsch_decoding(PHY_VARS_NR_UE *phy_vars_ue,
K_bytes_F = Kr_bytes-(harq_process->F>>3);
Tbslbrm = nr_compute_tbs(harq_process->mcs,nb_prb,frame_parms->symbols_per_slot,0,0, harq_process->Nl);
Tbslbrm = nr_compute_tbs(28,nb_rb,frame_parms->symbols_per_slot,0,0, harq_process->Nl);
for (r=0; r<harq_process->C; r++) {