Commit 6526bf3b authored by Guy De Souza's avatar Guy De Souza

Optimizations/ Floating point fix

parent 1e85683d
......@@ -21,11 +21,11 @@
/*! \file gNB_scheduler_primitives.c
* \brief primitives used by gNB for BCH, RACH, ULSCH, DLSCH scheduling
* \author Navid Nikaein and Raymond Knopp, WEI-TAI CHEN
* \date 2010 - 2014, 2018
* \email: navid.nikaein@eurecom.fr, kroempa@gmail.com
* \author Raymond Knopp, Guy De Souza
* \date 2018, 2019
* \email: knopp@eurecom.fr, desouza@eurecom.fr
* \version 1.0
* \company Eurecom, NTUST
* \company Eurecom
* @ingroup _mac
*/
......@@ -87,16 +87,20 @@ int8_t nr_coreset_rb_offset_pdcch_type_0_scs_120_120[8] = {0,4,14,14,-1,24,-1,4
int8_t nr_coreset_rb_offset_pdcch_type_0_scs_240_120[8] = {0,8,0,8,-1,25,-1,49};
/// LUT for monitoring occasions param O indexed by ss index (4 LSB rmsi_pdcch_config)
// Note: scaling is used to avoid decimal values for O and M, original values commented
uint8_t nr_ss_param_O_type_0_mux1_FR1[16] = {0,0,2,2,5,5,7,7,0,5,0,0,2,2,5,5};
uint8_t nr_ss_param_O_type_0_mux1_FR2[14] = {0,0,2.5,2.5,5,5,0,2.5,5,7.5,7.5,7.5,0,5};
uint8_t nr_ss_param_O_type_0_mux1_FR2[14] = {0,0,5,5,5,5,0,5,5,15,15,15,0,5}; //{0,0,2.5,2.5,5,5,0,2.5,5,7.5,7.5,7.5,0,5}
uint8_t nr_ss_scale_O_mux1_FR2[14] = {0,0,1,1,0,0,0,1,0,1,1,1,0,0};
/// LUT for number of SS sets per slot indexed by ss index
uint8_t nr_ss_sets_per_slot_type_0_FR1[16] = {1,2,1,2,1,2,1,2,1,1,1,1,1,1,1,1};
uint8_t nr_ss_sets_per_slot_type_0_FR2[14] = {1,2,1,2,1,2,2,2,2,1,2,2,1,1};
/// LUT for monitoring occasions param M indexed by ss index
uint8_t nr_ss_param_M_type_0_mux1_FR1[16] = {1,0.5,1,0.5,1,0.5,1,0.5,2,2,1,1,1,1,1,1};
uint8_t nr_ss_param_M_type_0_mux1_FR2[14] = {1,0.5,1,0.5,1,0.5,0.5,0.5,0.5,1,0.5,0.5,2,2};
uint8_t nr_ss_param_M_type_0_mux1_FR1[16] = {1,1,1,1,1,1,1,1,2,2,1,1,1,1,1,1}; //{1,0.5,1,0.5,1,0.5,1,0.5,2,2,1,1,1,1,1,1}
uint8_t nr_ss_scale_M_mux1_FR1[16] = {0,1,0,1,0,1,0,1,0,0,0,0,0,0,0,0};
uint8_t nr_ss_param_M_type_0_mux1_FR2[14] = {1,1,1,1,1,1,1,1,1,1,1,1,2,2}; //{1,0.5,1,0.5,1,0.5,0.5,0.5,0.5,1,0.5,0.5,2,2}
uint8_t nr_ss_scale_M_mux1_FR2[14] = {0,1,0,1,0,1,1,1,1,0,1,1,0,0};
/// LUT for SS first symbol index indexed by ss index
uint8_t nr_ss_first_symb_idx_type_0_mux1_FR1[8] = {0,0,1,2,1,2,1,2};
......@@ -107,6 +111,7 @@ uint8_t nr_ss_first_symb_idx_scs_240_120_set1_mux2[6] = {0,1,2,3,0,1};
uint8_t nr_ss_first_symb_idx_scs_120_120_mux3[4] = {4,8,2,6};
int is_nr_UL_slot(NR_COMMON_channels_t * ccP, int slot){
return (0);
......@@ -127,13 +132,13 @@ void nr_configure_css_dci_initial(nfapi_nr_dl_config_pdcch_parameters_rel15_t* p
uint8_t O, M;
uint8_t ss_idx = rmsi_pdcch_config&0xf;
uint8_t cset_idx = (rmsi_pdcch_config>>4)&0xf;
uint8_t mu;
uint8_t mu = scs_common;
uint8_t O_scale=0, M_scale=0; // used to decide if the values of O and M need to be divided by 2
/// Coreset params
switch(scs_common) {
case kHz15:
mu = 0;
switch(pdcch_scs) {
case kHz15:
......@@ -159,7 +164,6 @@ void nr_configure_css_dci_initial(nfapi_nr_dl_config_pdcch_parameters_rel15_t* p
break;
case kHz30:
mu = 1;
if (N_RB < 106) { // Minimum 40Mhz bandwidth not satisfied
switch(pdcch_scs) {
......@@ -208,7 +212,6 @@ void nr_configure_css_dci_initial(nfapi_nr_dl_config_pdcch_parameters_rel15_t* p
break;
case kHz120:
mu = 3;
switch(pdcch_scs) {
case kHz60:
AssertFatal(cset_idx<12,"Coreset index %d reserved for scs kHz120/kHz60\n", cset_idx);
......@@ -234,7 +237,6 @@ void nr_configure_css_dci_initial(nfapi_nr_dl_config_pdcch_parameters_rel15_t* p
break;
case kHz240:
mu = 4;
switch(pdcch_scs) {
case kHz60:
AssertFatal(cset_idx<4,"Coreset index %d reserved for scs kHz240/kHz60\n", cset_idx);
......@@ -271,19 +273,22 @@ void nr_configure_css_dci_initial(nfapi_nr_dl_config_pdcch_parameters_rel15_t* p
O = nr_ss_param_O_type_0_mux1_FR1[ss_idx];
pdcch_params->nb_ss_sets_per_slot = nr_ss_sets_per_slot_type_0_FR1[ss_idx];
M = nr_ss_param_M_type_0_mux1_FR1[ss_idx];
M_scale = nr_ss_scale_M_mux1_FR1[ss_idx];
pdcch_params->first_symbol = (ss_idx < 8)? ( (ssb_idx&1)? pdcch_params->n_symb : 0 ) : nr_ss_first_symb_idx_type_0_mux1_FR1[ss_idx - 8];
}
else {
AssertFatal(ss_idx<14 ,"Invalid search space index for multiplexing type 1 and FR2 %d\n", ss_idx);
O = nr_ss_param_O_type_0_mux1_FR2[ss_idx];
O_scale = nr_ss_scale_O_mux1_FR2[ss_idx];
pdcch_params->nb_ss_sets_per_slot = nr_ss_sets_per_slot_type_0_FR2[ss_idx];
M = nr_ss_param_M_type_0_mux1_FR2[ss_idx];
M_scale = nr_ss_scale_M_mux1_FR2[ss_idx];
pdcch_params->first_symbol = (ss_idx < 12)? ( (ss_idx&1)? 7 : 0 ) : 0;
}
pdcch_params->nb_slots = 2;
pdcch_params->sfn_mod2 = ((uint8_t)(floor( (O*pow(2, mu) + floor(ssb_idx*M)) / nb_slots_per_frame )) & 1)? 1 : 0;
pdcch_params->first_slot = (uint8_t)(O*pow(2, mu) + floor(ssb_idx*M)) % nb_slots_per_frame;
pdcch_params->sfn_mod2 = (CEILIDIV( (((O<<mu)>>O_scale) + ((ssb_idx*M)>>M_scale)), nb_slots_per_frame ) & 1)? 1 : 0;
pdcch_params->first_slot = (((O<<mu)>>O_scale) + ((ssb_idx*M)>>M_scale)) % nb_slots_per_frame;
break;
......
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