Commit 15629f12 authored by Ahmed Hussein's avatar Ahmed Hussein
Browse files

Moving get_L_ptrs and get_K_ptrs from PHY to MAC

parent b8f77a9c
......@@ -359,9 +359,9 @@ static void UE_synch(void *arg) {
void processSlotTX( PHY_VARS_NR_UE *UE, UE_nr_rxtx_proc_t *proc) {
uint32_t rb_size, rb_start;
uint16_t rnti, l_prime_mask, n_rb0, n_rb1;
uint8_t nr_of_symbols, start_symbol_index, mcs_index, mcs_table, nrOfLayers, harq_process_id, rv_index, dmrs_config_type;
uint16_t rnti, l_prime_mask;
uint8_t ptrs_mcs1, ptrs_mcs2, ptrs_mcs3, ptrs_time_density, ptrs_freq_density;
nr_dcireq_t dcireq;
nr_scheduled_response_t scheduled_response;
......@@ -394,6 +394,13 @@ void processSlotTX( PHY_VARS_NR_UE *UE, UE_nr_rxtx_proc_t *proc) {
rv_index = 0;
l_prime_mask = get_l_prime(nr_of_symbols, typeB, pusch_dmrs_pos0, pusch_len1);
dmrs_config_type = 0;
ptrs_mcs1 = 2;
ptrs_mcs2 = 4;
ptrs_mcs3 = 10;
n_rb0 = 25;
n_rb1 = 75;
ptrs_time_density = get_L_ptrs(ptrs_mcs1, ptrs_mcs2, ptrs_mcs3, mcs_index);
ptrs_freq_density = get_K_ptrs(n_rb0, n_rb1, rb_size);
//------------------------------------------------------------------------------//
scheduled_response.ul_config->slot = 8;
......@@ -412,6 +419,8 @@ void processSlotTX( PHY_VARS_NR_UE *UE, UE_nr_rxtx_proc_t *proc) {
scheduled_response.ul_config->ul_config_list[0].pusch_config_pdu.pusch_data.rv_index = rv_index;
scheduled_response.ul_config->ul_config_list[0].pusch_config_pdu.nrOfLayers = nrOfLayers;
scheduled_response.ul_config->ul_config_list[0].pusch_config_pdu.pusch_data.harq_process_id = harq_process_id;
scheduled_response.ul_config->ul_config_list[0].pusch_config_pdu.pusch_ptrs.ptrs_time_density = ptrs_time_density;
scheduled_response.ul_config->ul_config_list[0].pusch_config_pdu.pusch_ptrs.ptrs_freq_density = ptrs_freq_density;
nr_ue_scheduled_response(&scheduled_response);
......
......@@ -658,7 +658,7 @@ int init_nr_ue_signal(PHY_VARS_NR_UE *ue,
fp->nb_antennas_tx = 1;
fp->nb_antennas_rx=1;
// dmrs_UplinkConfig_t *dmrs_Uplink_Config = &ue->pusch_config.dmrs_UplinkConfig;
ptrs_UplinkConfig_t *ptrs_Uplink_Config = &ue->pusch_config.dmrs_UplinkConfig.ptrs_UplinkConfig;
// ptrs_UplinkConfig_t *ptrs_Uplink_Config = &ue->pusch_config.dmrs_UplinkConfig.ptrs_UplinkConfig;
printf("Initializing UE vars (abstraction %"PRIu8") for eNB TXant %"PRIu8", UE RXant %"PRIu8"\n",abstraction_flag,fp->nb_antennas_tx,fp->nb_antennas_rx);
//LOG_D(PHY,"[MSC_NEW][FRAME 00000][PHY_UE][MOD %02u][]\n", ue->Mod_id+NB_eNB_INST);
phy_init_nr_top(ue);
......@@ -748,12 +748,12 @@ int init_nr_ue_signal(PHY_VARS_NR_UE *ue,
ue->ptrs_configured = 0; // flag to be toggled by RCC
//------------- config PTRS parameters--------------//
ptrs_Uplink_Config->timeDensity.ptrs_mcs1 = 0; // setting MCS values to 0 indicate abscence of time_density field in the configuration
ptrs_Uplink_Config->timeDensity.ptrs_mcs2 = 0;
ptrs_Uplink_Config->timeDensity.ptrs_mcs3 = 0;
ptrs_Uplink_Config->frequencyDensity.n_rb0 = 0; // setting N_RB values to 0 indicate abscence of frequency_density field in the configuration
ptrs_Uplink_Config->frequencyDensity.n_rb1 = 0;
ptrs_Uplink_Config->resourceElementOffset = 0;
// ptrs_Uplink_Config->timeDensity.ptrs_mcs1 = 2; // setting MCS values to 0 indicate abscence of time_density field in the configuration
// ptrs_Uplink_Config->timeDensity.ptrs_mcs2 = 4;
// ptrs_Uplink_Config->timeDensity.ptrs_mcs3 = 10;
// ptrs_Uplink_Config->frequencyDensity.n_rb0 = 25; // setting N_RB values to 0 indicate abscence of frequency_density field in the configuration
// ptrs_Uplink_Config->frequencyDensity.n_rb1 = 75;
// ptrs_Uplink_Config->resourceElementOffset = 0;
//-------------------------------------------------//
///////////
......
......@@ -81,35 +81,7 @@ int16_t get_kRE_ref(uint8_t dmrs_antenna_port, uint8_t pusch_dmrs_type, uint8_t
}
/*******************************************************************
*
* NAME : get_K_ptrs
*
* PARAMETERS : ptrs_UplinkConfig PTRS uplink configuration
* N_RB number of RBs scheduled for PUSCH
*
* RETURN : the parameter K_ptrs
*
* DESCRIPTION : 3GPP TS 38.214 6.2.3 Table 6.2.3.1-2
*
*********************************************************************/
uint8_t get_K_ptrs(ptrs_UplinkConfig_t *ptrs_UplinkConfig, uint16_t N_RB) {
uint16_t nrb0, nrb1;
nrb0 = ptrs_UplinkConfig->frequencyDensity.n_rb0;
nrb1 = ptrs_UplinkConfig->frequencyDensity.n_rb1;
if (nrb0 == 0 || nrb0 == 0)
return 2;
if (N_RB < nrb0) {
LOG_I(PHY,"PUSH PT-RS is not present.\n");
return 0;
} else if (N_RB >= nrb0 && N_RB < nrb1)
return 2;
else
return 4;
}
/*******************************************************************
*
......@@ -162,39 +134,6 @@ void set_ptrs_symb_idx(uint16_t *ptrs_symbols,
}
}
/*******************************************************************
*
* NAME : get_L_ptrs
*
* PARAMETERS : ptrs_UplinkConfig PTRS uplink configuration
* I_mcs MCS index used for PUSCH
*
* RETURN : the parameter L_ptrs
*
* DESCRIPTION : 3GPP TS 38.214 6.2.3 Table 6.2.3.1-1
*
*********************************************************************/
uint8_t get_L_ptrs(ptrs_UplinkConfig_t *ptrs_UplinkConfig, uint8_t I_mcs) {
uint8_t mcs1, mcs2, mcs3;
mcs1 = ptrs_UplinkConfig->timeDensity.ptrs_mcs1;
mcs2 = ptrs_UplinkConfig->timeDensity.ptrs_mcs2;
mcs3 = ptrs_UplinkConfig->timeDensity.ptrs_mcs3;
if (mcs1 == 0 || mcs2 == 0 || mcs3 == 0)
return 1;
if (I_mcs < mcs1) {
LOG_I(PHY,"PUSH PT-RS is not present.\n");
return 0;
} else if (I_mcs >= mcs1 && I_mcs < mcs2)
return 4;
else if (I_mcs >= mcs2 && I_mcs < mcs3)
return 2;
else
return 1;
}
/*******************************************************************
*
* NAME : is_ptrs_subcarrier
......
......@@ -49,16 +49,12 @@
int16_t get_kRE_ref(uint8_t dmrs_antenna_port, uint8_t pusch_dmrs_type, uint8_t resourceElementOffset);
uint8_t get_K_ptrs(ptrs_UplinkConfig_t *ptrs_UplinkConfig, uint16_t N_RB);
void set_ptrs_symb_idx(uint16_t *ptrs_symbols,
uint8_t duration_in_symbols,
uint8_t start_symbol,
uint8_t L_ptrs,
uint16_t ul_dmrs_symb_pos);
uint8_t get_L_ptrs(ptrs_UplinkConfig_t *ptrs_UplinkConfig, uint8_t I_mcs);
uint8_t is_ptrs_subcarrier(uint16_t k, uint8_t K_ptrs, uint16_t n_rnti, uint16_t N_RB, int16_t k_RE_ref, uint16_t start_sc);
uint8_t is_ptrs_symbol(uint8_t l,
......
......@@ -284,9 +284,8 @@ void nr_ue_ulsch_procedures(PHY_VARS_NR_UE *UE,
if (UE->ptrs_configured == 1) {
K_ptrs = get_K_ptrs(ptrs_Uplink_Config, nb_rb);
L_ptrs = get_L_ptrs(ptrs_Uplink_Config, mcs);
K_ptrs = harq_process_ul_ue->pusch_pdu.pusch_ptrs.ptrs_freq_density;
L_ptrs = harq_process_ul_ue->pusch_pdu.pusch_ptrs.ptrs_time_density;
beta_ptrs = 1; // temp value until power control is implemented
......
......@@ -501,9 +501,15 @@ int main(int argc, char **argv)
uint8_t nb_re_dmrs;
unsigned char mod_order;
uint16_t code_rate;
uint8_t ptrs_mcs1 = 2;
uint8_t ptrs_mcs2 = 4;
uint8_t ptrs_mcs3 = 10;
uint16_t n_rb0 = 25;
uint16_t n_rb1 = 75;
uint8_t length_dmrs = pusch_len1; // [hna] remove dmrs struct
uint16_t l_prime_mask = get_l_prime(nb_symb_sch, typeB, pusch_dmrs_pos0, length_dmrs); // [hna] remove dmrs struct
uint8_t ptrs_time_density = get_L_ptrs(ptrs_mcs1, ptrs_mcs2, ptrs_mcs3, Imcs);
uint8_t ptrs_freq_density = get_K_ptrs(n_rb0, n_rb1, nb_rb);
for (i = 0; i < nb_symb_sch; i++) {
number_dmrs_symbols += (l_prime_mask >> i) & 0x01;
......@@ -568,7 +574,8 @@ int main(int argc, char **argv)
pusch_pdu->pusch_data.harq_process_id = 0;
pusch_pdu->pusch_data.new_data_indicator = 0;
pusch_pdu->pusch_data.num_cb = 0;
pusch_pdu->pusch_ptrs.ptrs_time_density = ptrs_time_density;
pusch_pdu->pusch_ptrs.ptrs_freq_density = ptrs_freq_density;
// --------- setting parameters for UE --------
......@@ -596,6 +603,8 @@ int main(int argc, char **argv)
ul_config.ul_config_list[0].pusch_config_pdu.pusch_data.rv_index = 0;
ul_config.ul_config_list[0].pusch_config_pdu.nrOfLayers = precod_nbr_layers;
ul_config.ul_config_list[0].pusch_config_pdu.pusch_data.harq_process_id = harq_pid;
ul_config.ul_config_list[0].pusch_config_pdu.pusch_ptrs.ptrs_time_density = ptrs_time_density;
ul_config.ul_config_list[0].pusch_config_pdu.pusch_ptrs.ptrs_freq_density = ptrs_freq_density;
//there are plenty of other parameters that we don't seem to be using for now. e.g.
ul_config.ul_config_list[0].pusch_config_pdu.absolute_delta_PUSCH = 0;
......
......@@ -602,6 +602,62 @@ int32_t get_l_prime(uint8_t duration_in_symbols, uint8_t mapping_type, pusch_dmr
return l_prime;
}
/*******************************************************************
*
* NAME : get_L_ptrs
*
* PARAMETERS : ptrs_UplinkConfig PTRS uplink configuration
* I_mcs MCS index used for PUSCH
*
* RETURN : the parameter L_ptrs
*
* DESCRIPTION : 3GPP TS 38.214 6.2.3 Table 6.2.3.1-1
*
*********************************************************************/
uint8_t get_L_ptrs(uint8_t mcs1, uint8_t mcs2, uint8_t mcs3, uint8_t I_mcs) {
if (mcs1 == 0 || mcs2 == 0 || mcs3 == 0)
return 1;
if (I_mcs < mcs1) {
LOG_I(PHY,"PUSH PT-RS is not present.\n");
return 0;
} else if (I_mcs >= mcs1 && I_mcs < mcs2)
return 4;
else if (I_mcs >= mcs2 && I_mcs < mcs3)
return 2;
else
return 1;
}
/*******************************************************************
*
* NAME : get_K_ptrs
*
* PARAMETERS : ptrs_UplinkConfig PTRS uplink configuration
* N_RB number of RBs scheduled for PUSCH
*
* RETURN : the parameter K_ptrs
*
* DESCRIPTION : 3GPP TS 38.214 6.2.3 Table 6.2.3.1-2
*
*********************************************************************/
uint8_t get_K_ptrs(uint16_t nrb0, uint16_t nrb1, uint16_t N_RB) {
if (nrb0 == 0 || nrb0 == 0)
return 2;
if (N_RB < nrb0) {
LOG_I(PHY,"PUSH PT-RS is not present.\n");
return 0;
} else if (N_RB >= nrb0 && N_RB < nrb1)
return 2;
else
return 4;
}
uint16_t nr_dci_size(nr_dci_format_t format,
nr_rnti_type_t rnti_type,
uint16_t N_RB) {
......
......@@ -785,6 +785,18 @@ void nr_schedule_uss_ulsch_phytest(int Mod_idP,
// and for each bit 0: DMRS port not used 1: DMRS port used
// --------------------------------------------------------------------------------------------------------------------------------------------
// --------------------
// ------- PTRS -------
// --------------------
uint8_t ptrs_mcs1 = 2;
uint8_t ptrs_mcs2 = 4;
uint8_t ptrs_mcs3 = 10;
uint16_t n_rb0 = 25;
uint16_t n_rb1 = 75;
pusch_pdu->pusch_ptrs.ptrs_time_density = get_L_ptrs(ptrs_mcs1, ptrs_mcs2, ptrs_mcs3, pusch_pdu->mcs_index);
pusch_pdu->pusch_ptrs.ptrs_freq_density = get_K_ptrs(n_rb0, n_rb1, pusch_pdu->rb_size);
// --------------------------------------------------------------------------------------------------------------------------------------------
//Pusch Allocation in frequency domain [TS38.214, sec 6.1.2.2]
//Optional Data only included if indicated in pduBitmap
pusch_pdu->pusch_data.rv_index = 0;
......
......@@ -165,6 +165,9 @@ int get_num_dmrs(uint16_t dmrs_mask );
uint8_t get_l0_ul(uint8_t mapping_type, uint8_t dmrs_typeA_position);
int32_t get_l_prime(uint8_t duration_in_symbols, uint8_t mapping_type, pusch_dmrs_AdditionalPosition_t additional_pos, pusch_maxLength_t pusch_maxLength);
uint8_t get_L_ptrs(uint8_t mcs1, uint8_t mcs2, uint8_t mcs3, uint8_t I_mcs);
uint8_t get_K_ptrs(uint16_t nrb0, uint16_t nrb1, uint16_t N_RB);
uint16_t nr_dci_size(nr_dci_format_t format,
nr_rnti_type_t rnti_type,
uint16_t N_RB);
......
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