Commit aa174286 authored by Bartosz Podrygajlo's avatar Bartosz Podrygajlo Committed by Laurent THOMAS

2753 Fix a bug in DELTA_TF calculation for PUCCH format 1.

parent 30ca93ad
......@@ -1630,6 +1630,135 @@ int nr_ue_configure_pucch(NR_UE_MAC_INST_t *mac,
return 0;
}
// PUCCH Power control according to 38.213 section 7.2.1
int16_t get_pucch_tx_power_ue(NR_UE_MAC_INST_t *mac,
int scs,
NR_PUCCH_Config_t *pucch_Config,
int delta_pucch,
uint8_t format_type,
uint16_t nb_of_prbs,
uint8_t freq_hop_flag,
uint8_t add_dmrs_flag,
uint8_t N_symb_PUCCH,
int subframe_number,
int O_uci)
{
NR_UE_UL_BWP_t *current_UL_BWP = mac->current_UL_BWP;
AssertFatal(current_UL_BWP && current_UL_BWP->pucch_ConfigCommon,
"Missing configuration: need UL_BWP and pucch_ConfigCommon to calculate PUCCH tx power\n");
int PUCCH_POWER_DEFAULT = 0;
// p0_nominal is optional
int16_t P_O_NOMINAL_PUCCH = DEFAULT_P0_NOMINAL_PUCCH_0_DBM;
if (current_UL_BWP->pucch_ConfigCommon->p0_nominal != NULL) {
P_O_NOMINAL_PUCCH = *current_UL_BWP->pucch_ConfigCommon->p0_nominal;
}
struct NR_PUCCH_PowerControl *power_config = pucch_Config ? pucch_Config->pucch_PowerControl : NULL;
if (!power_config)
return (PUCCH_POWER_DEFAULT);
int16_t P_O_UE_PUCCH;
int16_t G_b_f_c = 0;
if (pucch_Config->spatialRelationInfoToAddModList != NULL) { /* FFS TODO NR */
LOG_D(MAC,"PUCCH Spatial relation infos are not yet implemented\n");
return (PUCCH_POWER_DEFAULT);
}
if (power_config->p0_Set != NULL) {
P_O_UE_PUCCH = power_config->p0_Set->list.array[0]->p0_PUCCH_Value; /* get from index 0 if no spatial relation set */
G_b_f_c = 0;
}
else {
G_b_f_c = delta_pucch;
LOG_E(MAC,"PUCCH Transmit power control command not yet implemented for NR\n");
return (PUCCH_POWER_DEFAULT);
}
int P_O_PUCCH = P_O_NOMINAL_PUCCH + P_O_UE_PUCCH;
int16_t delta_F_PUCCH = DEFAULT_DELTA_F_PUCCH_0_DB;
long *delta_F_PUCCH_config = NULL;
int DELTA_TF;
uint16_t N_ref_PUCCH;
int N_sc_ctrl_RB = 0;
/* computing of pucch transmission power adjustment */
switch (format_type) {
case 0:
N_ref_PUCCH = 2;
DELTA_TF = 10 * log10(N_ref_PUCCH/N_symb_PUCCH);
delta_F_PUCCH_config = power_config->deltaF_PUCCH_f0;
break;
case 1:
N_ref_PUCCH = 14;
DELTA_TF = 10 * log10(N_ref_PUCCH/N_symb_PUCCH * O_uci);
delta_F_PUCCH_config = power_config->deltaF_PUCCH_f1;
break;
case 2:
N_sc_ctrl_RB = 10;
DELTA_TF = get_deltatf(nb_of_prbs, N_symb_PUCCH, freq_hop_flag, add_dmrs_flag, N_sc_ctrl_RB, O_uci);
delta_F_PUCCH_config = power_config->deltaF_PUCCH_f2;
break;
case 3:
N_sc_ctrl_RB = 14;
DELTA_TF = get_deltatf(nb_of_prbs, N_symb_PUCCH, freq_hop_flag, add_dmrs_flag, N_sc_ctrl_RB, O_uci);
delta_F_PUCCH_config = power_config->deltaF_PUCCH_f3;
break;
case 4:
N_sc_ctrl_RB = 14/(nb_pucch_format_4_in_subframes[subframe_number]);
DELTA_TF = get_deltatf(nb_of_prbs, N_symb_PUCCH, freq_hop_flag, add_dmrs_flag, N_sc_ctrl_RB, O_uci);
delta_F_PUCCH_config = power_config->deltaF_PUCCH_f4;
break;
default:
{
LOG_E(MAC,"PUCCH unknown pucch format %d\n", format_type);
return (0);
}
}
if (delta_F_PUCCH_config != NULL) {
delta_F_PUCCH = *delta_F_PUCCH_config;
}
if (power_config->twoPUCCH_PC_AdjustmentStates && *power_config->twoPUCCH_PC_AdjustmentStates > 1) {
LOG_E(MAC,"PUCCH power control adjustment states with 2 states not yet implemented\n");
return (PUCCH_POWER_DEFAULT);
}
int16_t pathloss = compute_nr_SSB_PL(mac, mac->ssb_measurements.ssb_rsrp_dBm);
int M_pucch_component = (10 * log10((double)(pow(2,scs) * nb_of_prbs)));
int16_t pucch_power = P_O_PUCCH + M_pucch_component + pathloss + delta_F_PUCCH + DELTA_TF + G_b_f_c;
LOG_D(MAC, "PUCCH ( Tx power : %d dBm ) ( 10Log(...) : %d ) ( from Path Loss : %d ) ( delta_F_PUCCH : %d ) ( DELTA_TF : %d ) ( G_b_f_c : %d ) \n",
pucch_power, M_pucch_component, pathloss, delta_F_PUCCH, DELTA_TF, G_b_f_c);
return (pucch_power);
}
int get_deltatf(uint16_t nb_of_prbs,
uint8_t N_symb_PUCCH,
uint8_t freq_hop_flag,
uint8_t add_dmrs_flag,
int N_sc_ctrl_RB,
int O_UCI)
{
int DELTA_TF;
int O_CRC = compute_pucch_crc_size(O_UCI);
int N_symb = N_symb_PUCCH < 4 ? N_symb_PUCCH : nb_symbols_excluding_dmrs[N_symb_PUCCH - 4][add_dmrs_flag][freq_hop_flag];
float N_RE = nb_of_prbs * N_sc_ctrl_RB * N_symb;
float K1 = 6;
if (O_UCI + O_CRC < 12)
DELTA_TF = 10 * log10((double)(((K1 * (O_UCI)) / N_RE)));
else {
float K2 = 2.4;
float BPRE = (O_UCI + O_CRC) / N_RE;
DELTA_TF = 10 * log10((double)(pow(2,(K2*BPRE)) - 1));
}
return DELTA_TF;
}
static int find_pucch_resource_set(NR_PUCCH_Config_t *pucch_Config, int size)
{
// Procedure described in 38.213 Section 9.2.1
......
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