Commit 123f8745 authored by Raymond Knopp's avatar Raymond Knopp

addition of initialization of first two polar encoder tables (up to rate matching)

parent 7d03e935
......@@ -325,21 +325,35 @@ void build_polar_tables(t_nrPolar_paramsPtr polarParams) {
AssertFatal(polarParams->K > 32, "K = %d < 33, is not supported yet\n",polarParams->K);
AssertFatal(polarParams->K < 65, "K = %d > 64, is not supported yet\n",polarParams->K);
int bit_i;
for (int byte=0;byte<8;byte++) {
int bit_i,ip;
int numbytes = polarParams->K>>3;
int residue = polarParams->K&7;
int numbits;
if (residue>0) numbytes++;
for (int byte=0;byte<numbytes;byte++) {
if (byte<(polarParams->K>>3)) numbits=8;
else numbits=residue;
for (int i=0;i<numbits;i++) {
ip=polarParams->interleaving_pattern[(8*byte)+i];
printf("input (%d,%d) %d ip %d\n",byte,i,(8*byte)+i,ip);
AssertFatal(ip<64,"ip = %d\n",ip);
for (int val=0;val<256;val++) {
for (int i=0;i<8;i++) {
bit_i=(val>>i)&1;
polarParams->cprime_tab[byte][val] |= (bit_i<<polarParams->interleaving_pattern[(8*byte)+i]);
}
}
for (int val=0;val<255;val++)
printf("cprime_tab[%d][%d] = %llx\n",byte,val,polarParams->cprime_tab[byte][val]);
}
AssertFatal(polarParams->N==512,"N = %d, not done yet\n",polarParams->N);
// build G bit vectors for information bit positions and convert the bit as bytes tables in nr_polar_kronecker_power_matrices.c to 64 bit packed vectors.
// keep only rows of G which correspond to information/crc bits
polarParams->G_N_tab = (uint64_t**)malloc(polarParams->K * sizeof(int64_t*));
for (int i=0;i<polarParams->K;i++) {
polarParams->G_N_tab[i] = (uint64_t*)memalign(32,(polarParams->N/64)*sizeof(uint64_t));
memset((void*)polarParams->G_N_tab[i],0,(polarParams->N/64)*sizeof(uint64_t));
for (int j=0;j<polarParams->N;j++)
polarParams->G_N_tab[i][j/64] |= polarParams->G_N[polarParams->Q_I_N[i]][j]<<(j&63);
......
......@@ -148,6 +148,7 @@ void nr_polar_init(t_nrPolar_paramsPtr *polarParams,
free(J);
build_decoder_tree(newPolarInitNode);
build_polar_tables(newPolarInitNode);
printf("decoder tree nodes %d\n",newPolarInitNode->tree.num_nodes);
} else {
......
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