Commit 6737d273 authored by Guido Casati's avatar Guido Casati
Browse files

PUSCH data filling from PHY to MAC:

- IP data were fetched and passed to MAC directly at the PHY layer
- random data was generated whenever there's no upcoming data.
- Therefore these functionalities are now moved to MAC and FAPI interfaces
- are used instead.
parent 8e271ce9
......@@ -98,7 +98,7 @@ void nr_ue_ulsch_procedures(PHY_VARS_NR_UE *UE,
uint8_t thread_id,
int gNB_id) {
uint32_t available_bits, TBS;
uint32_t available_bits;
uint8_t mod_order, cwd_index, num_of_codewords, l;
uint32_t scrambled_output[NR_MAX_NB_CODEWORDS][NR_MAX_PDSCH_ENCODED_LENGTH>>5];
uint32_t ***pusch_dmrs;
......@@ -111,7 +111,6 @@ void nr_ue_ulsch_procedures(PHY_VARS_NR_UE *UE,
int ap, start_symbol, Nid_cell, i;
int sample_offsetF, N_RE_prime, N_PRB_oh;
uint16_t ul_dmrs_symb_pos;
uint8_t data_existing =0;
uint8_t L_ptrs, K_ptrs; // PTRS parameters
uint16_t beta_ptrs; // PTRS parameter related to power control
uint8_t no_data_in_dmrs = 1;
......@@ -120,7 +119,6 @@ void nr_ue_ulsch_procedures(PHY_VARS_NR_UE *UE,
NR_UL_UE_HARQ_t *harq_process_ul_ue=NULL;
NR_DL_FRAME_PARMS *frame_parms = &UE->frame_parms;
NR_UE_PUSCH *pusch_ue = UE->pusch_vars[thread_id][gNB_id];
uint8_t ulsch_input_buffer[MAX_ULSCH_PAYLOAD_BYTES];
// ptrs_UplinkConfig_t *ptrs_Uplink_Config = &UE->pusch_config.dmrs_UplinkConfig.ptrs_UplinkConfig;
num_of_codewords = 1; // tmp assumption
......@@ -174,55 +172,6 @@ void nr_ue_ulsch_procedures(PHY_VARS_NR_UE *UE,
0,
harq_process_ul_ue->pusch_pdu.nrOfLayers);
uint8_t access_mode = SCHEDULED_ACCESS;
//-----------------------------------------------------//
// to be removed later when MAC is ready
if (harq_process_ul_ue != NULL){
TBS = harq_process_ul_ue->pusch_pdu.pusch_data.tb_size;
data_existing = 0;
if (IS_SOFTMODEM_NOS1){
data_existing = nr_ue_get_sdu(UE->Mod_id, UE->CC_id, frame,
slot, 0, ulsch_input_buffer, TBS/8, &access_mode);
//IP traffic to be transmitted
if(data_existing){
//harq_process_ul_ue->a = (unsigned char*)calloc(TBS/8, sizeof(unsigned char));
memcpy(harq_process_ul_ue->a, ulsch_input_buffer, TBS/8);
}
}
//Random traffic to be transmitted if there is no IP traffic available for this Tx opportunity
if (!IS_SOFTMODEM_NOS1 || !data_existing) {
//Use zeros for the header bytes in noS1 mode, in order to make sure that the LCID is not valid
//and block this traffic from being forwarded to the upper layers at the gNB
LOG_D(PHY, "Random data to be tranmsitted: \n");
//Give the first byte a dummy value (a value not corresponding to any valid LCID based on 38.321, Table 6.2.1-2)
//in order to distinguish the PHY random packets at the MAC layer of the gNB receiver from the normal packets that should
//have a valid LCID (nr_process_mac_pdu function)
harq_process_ul_ue->a[0] = 0x31;
for (i = 1; i < TBS / 8; i++) {
harq_process_ul_ue->a[i] = (unsigned char) rand();
//printf(" input encoder a[%d]=0x%02x\n",i,harq_process_ul_ue->a[i]);
}
}
#ifdef DEBUG_MAC_PDU
LOG_I(PHY, "Printing MAC PDU to be encoded, TBS is: %d \n", TBS/8);
for (i = 0; i < TBS / 8; i++) {
printf("%02x",harq_process_ul_ue->a[i]);
}
printf("\n");
#endif
} else {
LOG_E(PHY, "[phy_procedures_nrUE_TX] harq_process_ul_ue is NULL !!\n");
return;
}
//-----------------------------------------------------//
/////////////////////////ULSCH coding/////////////////////////
///////////
......@@ -473,7 +422,6 @@ void nr_ue_ulsch_procedures(PHY_VARS_NR_UE *UE,
///////////
////////////////////////////////////////////////////////////////////////
LOG_D(PHY, "Is data existing ?: %d \n", data_existing);
}
......
......@@ -139,12 +139,32 @@ int8_t nr_ue_scheduled_response(nr_scheduled_response_t *scheduled_response){
// pusch config pdu
pusch_config_pdu = &ul_config->ul_config_list[i].pusch_config_pdu;
current_harq_pid = pusch_config_pdu->pusch_data.harq_process_id;
nfapi_nr_ue_pusch_pdu_t *pusch_pdu = &ulsch0->harq_processes[current_harq_pid]->pusch_pdu;
NR_UL_UE_HARQ_t *harq_process_ul_ue = ulsch0->harq_processes[current_harq_pid];
memcpy(pusch_pdu, pusch_config_pdu, sizeof(nfapi_nr_ue_pusch_pdu_t));
if (harq_process_ul_ue){
nfapi_nr_ue_pusch_pdu_t *pusch_pdu = &harq_process_ul_ue->pusch_pdu;
memcpy(pusch_pdu, pusch_config_pdu, sizeof(nfapi_nr_ue_pusch_pdu_t));
ulsch0->f_pusch = pusch_config_pdu->absolute_delta_PUSCH;
if (scheduled_response->tx_request){
fapi_nr_tx_request_body_t *tx_req_body = scheduled_response->tx_request->tx_request_body;
//harq_process_ul_ue->a = (unsigned char*)calloc(TBS/8, sizeof(unsigned char));
memcpy(harq_process_ul_ue->a, tx_req_body->pdu, tx_req_body->pdu_length);
harq_process_ul_ue->status = ACTIVE;
}
} else {
LOG_E(PHY, "[phy_procedures_nrUE_TX] harq_process_ul_ue is NULL !!\n");
return -1;
}
ulsch0->f_pusch = pusch_config_pdu->absolute_delta_PUSCH;
ulsch0->harq_processes[current_harq_pid]->status = ACTIVE;
break;
case (FAPI_NR_UL_CONFIG_TYPE_PUCCH):
......@@ -206,9 +226,6 @@ int8_t nr_ue_scheduled_response(nr_scheduled_response_t *scheduled_response){
} else {
}
if (scheduled_response->tx_request != NULL){
} else {
}
}
return 0;
......
......@@ -755,91 +755,181 @@ NR_UE_L2_STATE_t nr_ue_scheduler(nr_downlink_indication_t *dl_info, nr_uplink_in
}
*/
}
} else if (ul_info && ul_info->slot_tx == 8) {
module_id_t mod_id = ul_info->module_id;
uint32_t gNB_index = ul_info->gNB_index;
int cc_id = ul_info->cc_id;
frame_t rx_frame = ul_info->frame_rx;
slot_t rx_slot = ul_info->slot_rx;
NR_UE_MAC_INST_t *mac = get_mac_inst(mod_id);
} else if (ul_info) {
if (get_softmodem_params()->phy_test && ul_info->slot_tx == 8) { // ULSCH is handled only in phy-test mode (consistently with OAI gNB)
uint8_t nb_dmrs_re_per_rb;
uint8_t ulsch_input_buffer[MAX_ULSCH_PAYLOAD_BYTES];
uint8_t data_existing = 0;
uint16_t TBS_bytes;
uint32_t TBS;
int i;
module_id_t mod_id = ul_info->module_id;
uint32_t gNB_index = ul_info->gNB_index;
int cc_id = ul_info->cc_id;
frame_t rx_frame = ul_info->frame_rx;
slot_t rx_slot = ul_info->slot_rx;
frame_t frame_tx = ul_info->frame_tx;
slot_t slot_tx = ul_info->slot_tx;
NR_UE_MAC_INST_t *mac = get_mac_inst(mod_id);
uint8_t access_mode = SCHEDULED_ACCESS;
// program PUSCH. this should actually be done upon reception of an UL DCI
nr_dcireq_t dcireq;
nr_scheduled_response_t scheduled_response;
fapi_nr_tx_request_t tx_req;
fapi_nr_tx_request_body_t tx_req_body;
//--------------------------Temporary configuration-----------------------------//
uint16_t rnti = 0x1234;
uint32_t rb_size = 50;
uint32_t rb_start = 0;
uint8_t nr_of_symbols = 12;
uint8_t start_symbol_index = 2;
uint8_t nrOfLayers = 1;
uint8_t mcs_index = 9;
uint8_t mcs_table = 0;
uint8_t harq_process_id = 0;
uint8_t rv_index = 0;
uint16_t l_prime_mask = get_l_prime(nr_of_symbols, typeB, pusch_dmrs_pos0, pusch_len1);
uint8_t dmrs_config_type = 0;
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;
uint16_t pdu_bit_map = PUSCH_PDU_BITMAP_PUSCH_DATA;
uint8_t ptrs_time_density = get_L_ptrs(ptrs_mcs1, ptrs_mcs2, ptrs_mcs3, mcs_index, mcs_table);
uint8_t ptrs_freq_density = get_K_ptrs(n_rb0, n_rb1, rb_size);
uint8_t no_data_in_dmrs = 1;
uint16_t number_dmrs_symbols = 0;
uint16_t ul_dmrs_symb_pos = l_prime_mask << start_symbol_index;
//------------------------------------------------------------------------------//
for (i = start_symbol_index; i < start_symbol_index + nr_of_symbols; i++) {
if((ul_dmrs_symb_pos >> i) & 0x01)
number_dmrs_symbols += 1;
}
// program PUSCH. this should actually be done upon reception of an UL DCI
nr_dcireq_t dcireq;
nr_scheduled_response_t scheduled_response;
if(no_data_in_dmrs)
nb_dmrs_re_per_rb = 12;
else
nb_dmrs_re_per_rb = ((dmrs_config_type == pusch_dmrs_type1) ? 6:4);
TBS = nr_compute_tbs(nr_get_Qm_ul(mcs_index, 0),
nr_get_code_rate_ul(mcs_index, 0),
rb_size,
nr_of_symbols,
nb_dmrs_re_per_rb*number_dmrs_symbols,
0,
0,
nrOfLayers);
TBS_bytes = TBS/8;
if (IS_SOFTMODEM_NOS1){
// Getting IP traffic to be transmitted
data_existing = nr_ue_get_sdu(mod_id,
cc_id,
frame_tx,
slot_tx,
0,
ulsch_input_buffer,
TBS_bytes,
&access_mode);
}
//--------------------------Temporary configuration-----------------------------//
uint16_t rnti = 0x1234;
uint32_t rb_size = 50;
uint32_t rb_start = 0;
uint8_t nr_of_symbols = 12;
uint8_t start_symbol_index = 2;
uint8_t nrOfLayers = 1;
uint8_t mcs_index = 9;
uint8_t mcs_table = 0;
uint8_t harq_process_id = 0;
uint8_t rv_index = 0;
uint16_t l_prime_mask = get_l_prime(nr_of_symbols, typeB, pusch_dmrs_pos0, pusch_len1);
uint8_t dmrs_config_type = 0;
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;
uint16_t pdu_bit_map = PUSCH_PDU_BITMAP_PUSCH_DATA;
uint8_t ptrs_time_density = get_L_ptrs(ptrs_mcs1, ptrs_mcs2, ptrs_mcs3, mcs_index, mcs_table);
uint8_t ptrs_freq_density = get_K_ptrs(n_rb0, n_rb1, rb_size);
//------------------------------------------------------------------------------//
dcireq.module_id = mod_id;
dcireq.gNB_index = gNB_index;
dcireq.cc_id = cc_id;
dcireq.frame = rx_frame;
dcireq.slot = rx_slot;
scheduled_response.dl_config = NULL;
scheduled_response.ul_config = &dcireq.ul_config_req;
scheduled_response.tx_request = NULL;
scheduled_response.module_id = mod_id;
scheduled_response.CC_id = cc_id;
scheduled_response.frame = rx_frame;
scheduled_response.slot = rx_slot;
scheduled_response.ul_config->slot = ul_info->slot_tx;
scheduled_response.ul_config->number_pdus = 1;
scheduled_response.ul_config->ul_config_list[0].pdu_type = FAPI_NR_UL_CONFIG_TYPE_PUSCH;
scheduled_response.ul_config->ul_config_list[0].pusch_config_pdu.rnti = rnti;
scheduled_response.ul_config->ul_config_list[0].pusch_config_pdu.rb_size = rb_size;
scheduled_response.ul_config->ul_config_list[0].pusch_config_pdu.rb_start = rb_start;
scheduled_response.ul_config->ul_config_list[0].pusch_config_pdu.nr_of_symbols = nr_of_symbols;
scheduled_response.ul_config->ul_config_list[0].pusch_config_pdu.start_symbol_index = start_symbol_index;
scheduled_response.ul_config->ul_config_list[0].pusch_config_pdu.ul_dmrs_symb_pos = l_prime_mask << start_symbol_index;
scheduled_response.ul_config->ul_config_list[0].pusch_config_pdu.dmrs_config_type = dmrs_config_type;
scheduled_response.ul_config->ul_config_list[0].pusch_config_pdu.mcs_index = mcs_index;
scheduled_response.ul_config->ul_config_list[0].pusch_config_pdu.mcs_table = mcs_table;
scheduled_response.ul_config->ul_config_list[0].pusch_config_pdu.pusch_data.new_data_indicator = 0;
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.pdu_bit_map = pdu_bit_map;
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;
scheduled_response.ul_config->ul_config_list[0].pusch_config_pdu.pusch_ptrs.ptrs_ports_list = (nfapi_nr_ue_ptrs_ports_t *) malloc(2*sizeof(nfapi_nr_ue_ptrs_ports_t));
scheduled_response.ul_config->ul_config_list[0].pusch_config_pdu.pusch_ptrs.ptrs_ports_list[0].ptrs_re_offset = 0;
if (1 << ptrs_time_density >= nr_of_symbols) {
scheduled_response.ul_config->ul_config_list[0].pusch_config_pdu.pdu_bit_map &= ~PUSCH_PDU_BITMAP_PUSCH_PTRS; // disable PUSCH PTRS
}
//Random traffic to be transmitted if there is no IP traffic available for this Tx opportunity
if (!IS_SOFTMODEM_NOS1 || !data_existing) {
//Use zeros for the header bytes in noS1 mode, in order to make sure that the LCID is not valid
//and block this traffic from being forwarded to the upper layers at the gNB
LOG_D(PHY, "Random data to be tranmsitted: \n");
if(mac->if_module != NULL && mac->if_module->scheduled_response != NULL){
mac->if_module->scheduled_response(&scheduled_response);
}
//Give the first byte a dummy value (a value not corresponding to any valid LCID based on 38.321, Table 6.2.1-2)
//in order to distinguish the PHY random packets at the MAC layer of the gNB receiver from the normal packets that should
//have a valid LCID (nr_process_mac_pdu function)
ulsch_input_buffer[0] = 0x31;
// TODO: expand
// Note: Contention resolution is currently not active
if (mac->RA_contention_resolution_timer_active == 1)
ue_contention_resolution(mod_id, gNB_index, cc_id, ul_info->frame_tx);
}
for (i = 1; i < TBS_bytes; i++) {
ulsch_input_buffer[i] = (unsigned char) rand();
//printf(" input encoder a[%d]=0x%02x\n",i,harq_process_ul_ue->a[i]);
}
}
#ifdef DEBUG_MAC_PDU
LOG_D(PHY, "Is data existing ?: %d \n", data_existing);
LOG_I(PHY, "Printing MAC PDU to be encoded, TBS is: %d \n", TBS_bytes);
for (i = 0; i < TBS_bytes; i++) {
printf("%02x", ulsch_input_buffer[i]);
}
printf("\n");
#endif
dcireq.module_id = mod_id;
dcireq.gNB_index = gNB_index;
dcireq.cc_id = cc_id;
dcireq.frame = rx_frame;
dcireq.slot = rx_slot;
scheduled_response.dl_config = NULL;
scheduled_response.ul_config = &dcireq.ul_config_req;
// Config UL TX PDU
tx_req.slot = slot_tx;
tx_req.sfn = frame_tx;
// tx_req->tx_config // TbD
tx_req.number_of_pdus = 1;
tx_req_body.pdu_length = TBS_bytes;
tx_req_body.pdu_index = 0;
tx_req_body.pdu = ulsch_input_buffer;
scheduled_response.tx_request = &tx_req;
scheduled_response.tx_request->tx_request_body = &tx_req_body;
scheduled_response.module_id = mod_id;
scheduled_response.CC_id = cc_id;
scheduled_response.frame = rx_frame;
scheduled_response.slot = rx_slot;
printf("DEGUG nr_ue_scheduler Scheduling FAPI_NR_UL_CONFIG_TYPE_PUSCH \n");
scheduled_response.ul_config->slot = ul_info->slot_tx;
scheduled_response.ul_config->number_pdus = 1;
scheduled_response.ul_config->ul_config_list[0].pdu_type = FAPI_NR_UL_CONFIG_TYPE_PUSCH;
scheduled_response.ul_config->ul_config_list[0].pusch_config_pdu.rnti = rnti;
scheduled_response.ul_config->ul_config_list[0].pusch_config_pdu.rb_size = rb_size;
scheduled_response.ul_config->ul_config_list[0].pusch_config_pdu.rb_start = rb_start;
scheduled_response.ul_config->ul_config_list[0].pusch_config_pdu.nr_of_symbols = nr_of_symbols;
scheduled_response.ul_config->ul_config_list[0].pusch_config_pdu.start_symbol_index = start_symbol_index;
scheduled_response.ul_config->ul_config_list[0].pusch_config_pdu.ul_dmrs_symb_pos = ul_dmrs_symb_pos;
scheduled_response.ul_config->ul_config_list[0].pusch_config_pdu.dmrs_config_type = dmrs_config_type;
scheduled_response.ul_config->ul_config_list[0].pusch_config_pdu.mcs_index = mcs_index;
scheduled_response.ul_config->ul_config_list[0].pusch_config_pdu.mcs_table = mcs_table;
scheduled_response.ul_config->ul_config_list[0].pusch_config_pdu.pusch_data.new_data_indicator = 0;
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.pdu_bit_map = pdu_bit_map;
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;
scheduled_response.ul_config->ul_config_list[0].pusch_config_pdu.pusch_ptrs.ptrs_ports_list = (nfapi_nr_ue_ptrs_ports_t *) malloc(2*sizeof(nfapi_nr_ue_ptrs_ports_t));
scheduled_response.ul_config->ul_config_list[0].pusch_config_pdu.pusch_ptrs.ptrs_ports_list[0].ptrs_re_offset = 0;
if (1 << ptrs_time_density >= nr_of_symbols) {
scheduled_response.ul_config->ul_config_list[0].pusch_config_pdu.pdu_bit_map &= ~PUSCH_PDU_BITMAP_PUSCH_PTRS; // disable PUSCH PTRS
}
if(mac->if_module != NULL && mac->if_module->scheduled_response != NULL){
mac->if_module->scheduled_response(&scheduled_response);
}
// TODO: expand
// Note: Contention resolution is currently not active
if (mac->RA_contention_resolution_timer_active == 1)
ue_contention_resolution(mod_id, gNB_index, cc_id, ul_info->frame_tx);
}
}
return UE_CONNECTION_OK;
}
......
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