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Commit 156defcd authored by cig's avatar cig
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Fixes RAR generation, reception

parent 986b5fb2
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openair1/SCHED_NR_UE/phy_procedures_nr_ue.c
View file @ 156defcd
......@@ -1321,7 +1321,7 @@ void ulsch_common_procedures(PHY_VARS_NR_UE *ue, UE_nr_rxtx_proc_t *proc, uint8_
#endif
UE_MODE_t get_nrUE_mode(uint8_t Mod_id,uint8_t CC_id,uint8_t gNB_id){ // TBR generate enum for NR
UE_MODE_t get_nrUE_mode(uint8_t Mod_id,uint8_t CC_id,uint8_t gNB_id){
return(PHY_vars_UE_g[Mod_id][CC_id]->UE_mode[gNB_id]);
}
......@@ -3152,19 +3152,47 @@ void nr_ue_pdsch_procedures(PHY_VARS_NR_UE *ue, UE_nr_rxtx_proc_t *proc, int eNB
}
}
// WIP TBR fix:
// - time domain indication hardcoded to 0 for k2 offset
// - extend TS 38.213 ch 8.3 Msg3 PUSCH
// - b buffer
// - ulsch power offset
// - UE_mode == PUSCH case (should be handled by TA updates)
// - harq
// - optimize: mu_pusch, j and table_6_1_2_1_1_2_time_dom_res_alloc_A are already defined in nr_ue_procedures
void nr_process_rar(nr_downlink_indication_t *dl_info) {
module_id_t module_id = dl_info->module_id;
int cc_id = dl_info->cc_id, frame_rx = dl_info->proc->frame_rx, nr_tti_rx = dl_info->proc->nr_tti_rx, ta_command, harq_pid = 0;
int cc_id = dl_info->cc_id, frame_rx = dl_info->proc->frame_rx, nr_tti_rx = dl_info->proc->nr_tti_rx, ta_command, k2, delta;
uint8_t gNB_index = dl_info->gNB_index, *rar;
fapi_nr_dci_indication_t *dci_ind = dl_info->dci_ind;
PHY_VARS_NR_UE *ue = PHY_vars_UE_g[module_id][cc_id];
NR_UE_DLSCH_t *dlsch0 = ue->dlsch_ra[gNB_index];
UE_MODE_t UE_mode = ue->UE_mode[gNB_index];
NR_PRACH_RESOURCES_t *prach_resources = ue->prach_resources[gNB_index];
uint16_t slots_per_frame = ue->frame_parms.slots_per_frame;
uint8_t next1_thread_id = ue->current_thread_id[nr_tti_rx]== (RX_NB_TH-1) ? 0:(ue->current_thread_id[nr_tti_rx]+1); // TBR double check
uint8_t next2_thread_id = next1_thread_id== (RX_NB_TH-1) ? 0:(next1_thread_id+1); // TBR double check
uint8_t mu_pusch = 1;
// definition table j Table 6.1.2.1.1-4
uint8_t j = (mu_pusch==3)?3:(mu_pusch==2)?2:1;
uint8_t table_6_1_2_1_1_2_time_dom_res_alloc_A[16][3]={ // for PUSCH from TS 38.214 subclause 6.1.2.1.1
{j, 0,14}, // row index 1
{j, 0,12}, // row index 2
{j, 0,10}, // row index 3
{j, 2,10}, // row index 4
{j, 4,10}, // row index 5
{j, 4,8}, // row index 6
{j, 4,6}, // row index 7
{j+1,0,14}, // row index 8
{j+1,0,12}, // row index 9
{j+1,0,10}, // row index 10
{j+2,0,14}, // row index 11
{j+2,0,12}, // row index 12
{j+2,0,10}, // row index 13
{j, 8,6}, // row index 14
{j+3,0,14}, // row index 15
{j+3,0,10} // row index 16
};
LOG_D(PHY,"[UE %d][RAPROC] Frame %d subframe %d Received RAR mode %d\n", module_id, frame_rx, nr_tti_rx, UE_mode);
......@@ -3173,66 +3201,75 @@ void nr_process_rar(nr_downlink_indication_t *dl_info) {
LOG_D(PHY,"[UE %d][RAPROC] Frame %d subframe %d Invoking MAC for RAR (current preamble %d)\n", module_id, frame_rx, nr_tti_rx, prach_resources->ra_PreambleIndex);
// TBR double check
// fix crnti
// ta_command = nr_ue_process_rar(ue->Mod_id,
// cc_id,
// frame_rx,
// prach_resources->ra_RNTI,
// dlsch0->harq_processes[0]->b,
// &ue->pdcch_vars[ue->current_thread_id[nr_tti_rx]][gNB_index]->crnti,
// prach_resources->ra_PreambleIndex,
// dlsch0->harq_processes[0]->b); // alter the 'b' buffer so it contains only the selected RAR header and RAR payload
// ue->pdcch_vars[next1_thread_id][gNB_index]->crnti = ue->pdcch_vars[ue->current_thread_id[nr_tti_rx]][gNB_index]->crnti;
// ue->pdcch_vars[next2_thread_id][gNB_index]->crnti = ue->pdcch_vars[ue->current_thread_id[nr_tti_rx]][gNB_index]->crnti;
// TBR double check
ta_command = nr_ue_process_rar(ue->Mod_id,
cc_id,
frame_rx,
dlsch0->harq_processes[0]->b,
&ue->pdcch_vars[ue->current_thread_id[nr_tti_rx]][gNB_index]->pdcch_config[0].rnti,
prach_resources->ra_PreambleIndex,
dlsch0->harq_processes[0]->b); // alter the 'b' buffer so it contains only the selected RAR header and RAR payload
if (ta_command != 0xffff) {
// LOG_D(PHY,"[UE %d][RAPROC] Frame %d subframe %d Got rnti %x and timing advance %d from RAR\n",
// ue->Mod_id,
// frame_rx,
// nr_tti_rx,
// ue->pdcch_vars[ue->current_thread_id[nr_tti_rx]][gNB_index]->crnti,
// ta_command);
// fix TBR : C-RNTI is still a TC-RNTI
// ue->pdcch_vars[ue->current_thread_id[nr_tti_rx]][gNB_index]->crnti_is_temporary = 1;
LOG_D(PHY,"[UE %d][RAPROC] Frame %d subframe %d Got Temporary C-RNTI %x and timing advance %d from RAR\n",
ue->Mod_id,
frame_rx,
nr_tti_rx,
ue->pdcch_vars[ue->current_thread_id[nr_tti_rx]][gNB_index]->pdcch_config[0].rnti,
ta_command);
nr_process_timing_advance_rar(ue, dl_info->proc, ta_command);
if (UE_mode != debug_prach) {
ue->ulsch_Msg3_active[gNB_index] = 1;
// nr_get_Msg3_alloc(&ue->frame_parms,
// nr_tti_rx,
// frame_rx,
// &ue->ulsch_Msg3_frame[gNB_index],
// &ue->ulsch_Msg3_subframe[gNB_index]); // TBR
// TS 38.213 ch 8.3 Msg3 PUSCH
// PUSCH time domain resource allocation A for normal CP
// TS 38.214 ch 6.1.2.1.1
k2 = table_6_1_2_1_1_2_time_dom_res_alloc_A[0][0];
switch (mu_pusch) {
case 0:
delta = 2;
break;
case 1:
delta = 3;
break;
case 2:
delta = 4;
break;
case 3:
delta = 6;
break;
}
ue->ulsch_Msg3_subframe[gNB_index] = (nr_tti_rx + k2 + delta) % slots_per_frame;
if (nr_tti_rx + k2 + delta > slots_per_frame){
ue->ulsch_Msg3_frame[gNB_index] = (frame_rx + 1) % 1024;
} else {
ue->ulsch_Msg3_frame[gNB_index] = frame_rx;
}
LOG_D(PHY,"[UE %d][RAPROC] Got Msg3_alloc Frame %d subframe %d: Msg3_frame %d, Msg3_subframe %d\n",
ue->Mod_id,
frame_rx,
nr_tti_rx,
ue->ulsch_Msg3_frame[gNB_index],
ue->ulsch_Msg3_subframe[gNB_index]);
// todo TBR
// harq_pid = subframe2harq_pid(&ue->frame_parms,
// ue->ulsch_Msg3_frame[gNB_index],
// ue->ulsch_Msg3_subframe[gNB_index]);
// ue->ulsch[gNB_index]->harq_processes[harq_pid]->round = 0;
// ue->UE_mode[gNB_index] = RA_RESPONSE;
// ue->Msg3_timer[gNB_index] = 10;
// ue->ulsch[gNB_index].power_offset = 6;
// ue->ulsch_no_allocation_counter[gNB_index] = 0;
ue->UE_mode[gNB_index] = RA_RESPONSE;
}
} else {
LOG_W(PHY,"[UE %d][RAPROC] Received RAR preamble (%d) doesn't match !!!\n", ue->Mod_id, prach_resources->ra_PreambleIndex);
}
} else { // PRACH preamble doesn't match RAR
LOG_W(PHY,"[UE %d][RAPROC] Received RAR preamble (%d) doesn't match !!!\n",
ue->Mod_id,
prach_resources->ra_PreambleIndex);
}
} // mode != PUSCH
} else {
rar = dlsch0->harq_processes[0]->b+1;
ta_command = ((((uint16_t)(rar[0]&0x7f))<<4) + (rar[1]>>4));
nr_process_timing_advance_rar(ue, dl_info->proc, ta_command);
// rar = dlsch0->harq_processes[0]->b+1;
// ta_command = ((((uint16_t)(rar[0]&0x7f))<<4) + (rar[1]>>4));
// nr_process_timing_advance_rar(ue, dl_info->proc, ta_command);
}
}
......@@ -4468,7 +4505,6 @@ void nr_ue_prach_procedures(PHY_VARS_NR_UE *ue, UE_nr_rxtx_proc_t *proc, uint8_t
uint16_t preamble_tx = 50, pathloss;
NR_PRACH_RESOURCES_t prach_resources;
uint8_t mod_id = ue->Mod_id;
NR_UE_MAC_INST_t *nr_UE_mac_inst = get_mac_inst(mod_id);
UE_MODE_t UE_mode = get_nrUE_mode(mod_id, ue->CC_id, gNB_id);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_PROCEDURES_UE_TX_PRACH, VCD_FUNCTION_IN);
......
openair2/LAYER2/NR_MAC_COMMON/nr_mac.h
View file @ 156defcd
......@@ -147,14 +147,21 @@ typedef struct {
// uint8_t payload[RAR_PAYLOAD_SIZE_MAX];
// } __attribute__ ((__packed__)) RAR_PDU;
/*!\brief MAC header of Random Access Response for Random access preamble identifier (RAPID) */
//* RAR MAC subheader // TS 38.321 ch. 6.1.5, 6.2.2 *//
// - E: The Extension field is a flag indicating if the MAC subPDU including this MAC subheader is the last MAC subPDU or not in the MAC PDU
// - T: The Type field is a flag indicating whether the MAC subheader contains a Random Access Preamble ID or a Backoff Indicator (0, BI) (1, RAPID)
// - R: Reserved bit, set to "0"
// - BI: The Backoff Indicator field identifies the overload condition in the cell.
// - RAPID: The Random Access Preamble IDentifier field identifies the transmitted Random Access Preamble
/*!\brief RAR MAC subheader with RAPID */
typedef struct {
uint8_t RAPID:6;
uint8_t T:1;
uint8_t E:1;
} __attribute__ ((__packed__)) NR_RA_HEADER_RAPID;
/*!\brief MAC header of Random Access Response for backoff indicator (BI)*/
/*!\brief RAR MAC subheader with Backoff Indicator */
typedef struct {
uint8_t BI:4;
uint8_t R:2;
......@@ -162,6 +169,19 @@ typedef struct {
uint8_t E:1;
} __attribute__ ((__packed__)) NR_RA_HEADER_BI;
// TS 38.321 ch. 6.2.3
typedef struct {
uint8_t R:1; // octet 1 [7]
uint8_t TA1:7; // octet 1 [7:0]
uint8_t TA2:5; // octet 2 [7:2]
uint8_t UL_GRANT_1:3; // octet 2 [2:0]
uint8_t UL_GRANT_2:8; // octet 3 [7:0]
uint8_t UL_GRANT_3:8; // octet 4 [7:0]
uint8_t UL_GRANT_4:8; // octet 5 [7:0]
uint8_t TCRNTI_1:8; // octet 6 [7:0]
uint8_t TCRNTI_2:8; // octet 7 [7:0]
} __attribute__ ((__packed__)) NR_MAC_RAR;
// 38.321 ch6.2.1, 38.331
#define DL_SCH_LCID_CCCH 0x00
#define DL_SCH_LCID_DCCH 0x01
......
openair2/LAYER2/NR_MAC_UE/mac_defs.h
View file @ 156defcd
......@@ -145,6 +145,8 @@ typedef struct {
/// Preamble Power Ramping Counter
uint8_t RA_PREAMBLE_POWER_RAMPING_COUNTER;
/// Random-access backoff counter
int16_t RA_backoff_indicator;
/// Random-access backoff counter
int16_t RA_backoff_cnt;
/// Random-access variable for window calculation (frame of last change in window counter)
uint32_t RA_tx_frame;
......@@ -165,6 +167,8 @@ typedef struct {
int8_t deltaPreamble_Msg3;
/// Flag to monitor if matching RAPID was received in RAR
uint8_t RA_RAPID_found;
/// Flag to monitor if BI was received in RAR
uint8_t RA_BI_found;
/// UE_Mode variable should be used in the case of Phy_stub operation since we won't have access to PHY_VARS_UE
/// where the UE_mode originally is for the full stack operation mode. The transitions between the states of the UE_Mode
/// will be triggered within phy_stub_ue.c in this case
......
openair2/LAYER2/NR_MAC_UE/mac_proto.h
View file @ 156defcd
......@@ -206,13 +206,12 @@ random-access procedure
@param selected_rar_buffer the output buffer for storing the selected RAR header and RAR payload
@returns timing advance or 0xffff if preamble doesn't match
*/
uint16_t nr_ue_process_rar(const module_id_t mod_id,
const int CC_id,
const frame_t frameP,
const rnti_t ra_rnti,
uint8_t * const dlsch_buffer,
rnti_t * const t_crnti,
const uint8_t preamble_index,
uint16_t nr_ue_process_rar(module_id_t mod_id,
int CC_id,
frame_t frameP,
uint8_t * dlsch_buffer,
rnti_t * t_crnti,
uint8_t preamble_index,
uint8_t * selected_rar_buffer);
void nr_process_rar(nr_downlink_indication_t *dl_info);
......
openair2/LAYER2/NR_MAC_UE/nr_ra_procedures.c
View file @ 156defcd
......@@ -31,7 +31,6 @@
*/
#include "mac.h"
// TBR missing NR_nr_UE_mac_inst in mac.h
/*
#include "common/utils/LOG/vcd_signal_dumper.h"
......@@ -69,6 +68,7 @@ extern int64_t table_6_3_3_2_3_prachConfig_Index [256][9];
//extern uint8_t nfapi_mode;
// WIP
// This routine implements Section 5.1.2 (UE Random Access Resource Selection)
// and Section 5.1.3 (Random Access Preamble Transmission) from 3GPP TS 38.321
void nr_get_prach_resources(module_id_t mod_id,
......@@ -78,15 +78,15 @@ void nr_get_prach_resources(module_id_t mod_id,
uint8_t first_Msg3,
NR_RACH_ConfigDedicated_t * rach_ConfigDedicated){
NR_UE_MAC_INST_t *nr_UE_mac_inst = get_mac_inst(mod_id);
NR_PRACH_RESOURCES_t *prach_resources = &nr_UE_mac_inst->RA_prach_resources;
NR_RACH_ConfigCommon_t *nr_rach_ConfigCommon = nr_UE_mac_inst->nr_rach_ConfigCommon;
// NR_BeamFailureRecoveryConfig_t *beam_failure_recovery_config = &nr_UE_mac_inst->RA_BeamFailureRecoveryConfig; // todo
NR_UE_MAC_INST_t *mac = get_mac_inst(mod_id);
NR_PRACH_RESOURCES_t *prach_resources = &mac->RA_prach_resources;
NR_RACH_ConfigCommon_t *nr_rach_ConfigCommon = mac->nr_rach_ConfigCommon;
// NR_BeamFailureRecoveryConfig_t *beam_failure_recovery_config = &mac->RA_BeamFailureRecoveryConfig; // todo
int messagePowerOffsetGroupB, messageSizeGroupA, PLThreshold, sizeOfRA_PreamblesGroupA, numberOfRA_Preambles, frequencyStart, i, deltaPreamble_Msg3;
uint8_t noGroupB = 0, s_id, f_id, ul_carrier_id, msg1_FDM, prach_ConfigIndex, SFN_nbr, Msg3_size;
// NR_RSRP_Range_t rsrp_ThresholdSSB; // TBR todo
// NR_RSRP_Range_t rsrp_ThresholdSSB; // todo
///////////////////////////////////////////////////////////
//////////* UE Random Access Resource Selection *//////////
......@@ -103,7 +103,7 @@ void nr_get_prach_resources(module_id_t mod_id,
// -- SSB selection, set prach_resources->ra_PreambleIndex
// if (rach_ConfigDedicated) { // This is for network controlled Mobility
// // TBR operation for contention-free RA resources when:
// // operation for contention-free RA resources when:
// // - available SSB with SS-RSRP above rsrp-ThresholdSSB: SSB selection
// // - availalbe CSI-RS with CSI-RSRP above rsrp-ThresholdCSI-RS: CSI-RS selection
// prach_resources->ra_PreambleIndex = rach_ConfigDedicated->ra_PreambleIndex;
......@@ -111,11 +111,13 @@ void nr_get_prach_resources(module_id_t mod_id,
// }
//////////* Contention-based RA preamble selection *//////////
// todo
// - selection of SSB with SS-RSRP above rsrp-ThresholdSSB else select any SSB
// - todo determine next available PRACH occasion
// todo: selection of SSB with SS-RSRP above rsrp-ThresholdSSB else select any SSB
// rsrp_ThresholdSSB = *nr_rach_ConfigCommon->rsrp_ThresholdSSB; // TBR
// rsrp_ThresholdSSB = *nr_rach_ConfigCommon->rsrp_ThresholdSSB;
Msg3_size = nr_UE_mac_inst->RA_Msg3_size;
Msg3_size = mac->RA_Msg3_size;
numberOfRA_Preambles = nr_rach_ConfigCommon->totalNumberOfRA_Preambles;
if (!nr_rach_ConfigCommon->groupBconfigured) {
......@@ -194,8 +196,8 @@ void nr_get_prach_resources(module_id_t mod_id,
}
// todo Msg3-DeltaPreamble should be provided from higher layers, otherwise is 0
nr_UE_mac_inst->deltaPreamble_Msg3 = 0;
deltaPreamble_Msg3 = nr_UE_mac_inst->deltaPreamble_Msg3;
mac->deltaPreamble_Msg3 = 0;
deltaPreamble_Msg3 = mac->deltaPreamble_Msg3;
}
PLThreshold = prach_resources->RA_PCMAX - nr_rach_ConfigCommon->rach_ConfigGeneric.preambleReceivedTargetPower - deltaPreamble_Msg3 - messagePowerOffsetGroupB;
......@@ -205,27 +207,23 @@ void nr_get_prach_resources(module_id_t mod_id,
if (noGroupB == 1) {
// use Group A preamble
prach_resources->ra_PreambleIndex = (taus()) % numberOfRA_Preambles;
nr_UE_mac_inst->RA_usedGroupA = 1;
mac->RA_usedGroupA = 1;
} else if ((Msg3_size < messageSizeGroupA) && (get_PL(mod_id, 0, gNB_id) > PLThreshold)) {
// Group B is configured and RA preamble Group A is used
// - todo TBR update get_PL to NR get_nr_PL (needs PHY_VARS_NR_UE)
// - todo add condition on CCCH_sdu_size for initiation by CCCH
prach_resources->ra_PreambleIndex = (taus()) % sizeOfRA_PreamblesGroupA;
nr_UE_mac_inst->RA_usedGroupA = 1;
mac->RA_usedGroupA = 1;
} else {
// Group B preamble is configured and used
// the first sizeOfRA_PreamblesGroupA RA preambles belong to RA Preambles Group A
// the remaining belong to RA Preambles Group B
prach_resources->ra_PreambleIndex = sizeOfRA_PreamblesGroupA + (taus()) % (numberOfRA_Preambles - sizeOfRA_PreamblesGroupA);
nr_UE_mac_inst->RA_usedGroupA = 0;
mac->RA_usedGroupA = 0;
}
} else { // Msg3 is being retransmitted
if (nr_UE_mac_inst->RA_usedGroupA == 1) {
if (nr_rach_ConfigCommon->groupBconfigured){
if (mac->RA_usedGroupA == 1) {
prach_resources->ra_PreambleIndex = (taus()) % sizeOfRA_PreamblesGroupA;
} else {
prach_resources->ra_PreambleIndex = (taus()) & 0x3f; // TBR check this
}
} else {
prach_resources->ra_PreambleIndex = sizeOfRA_PreamblesGroupA + (taus()) % (numberOfRA_Preambles - sizeOfRA_PreamblesGroupA);
}
......@@ -239,11 +237,12 @@ void nr_get_prach_resources(module_id_t mod_id,
/////////////////////////////////////////////////////////////////////////////
//////////* Random Access Preamble Transmission (5.1.3 TS 38.321) *//////////
/////////////////////////////////////////////////////////////////////////////
// todo:
// - condition on notification of suspending power ramping counter from lower layer (5.1.3 TS 38.321)
// - check if SSB or CSI-RS have not changed since the selection in the last RA Preamble tranmission
// todo condition on notification of suspending power ramping counter from lower layer (5.1.3 TS 38.321) // TBR
// todo check if SSB or CSI-RS have not changed since the selection in the last RA Preamble tranmission
if (nr_UE_mac_inst->RA_PREAMBLE_TRANSMISSION_COUNTER > 1)
nr_UE_mac_inst->RA_PREAMBLE_TRANSMISSION_COUNTER++;
if (mac->RA_PREAMBLE_TRANSMISSION_COUNTER > 1)
mac->RA_PREAMBLE_TRANSMISSION_COUNTER++;
prach_resources->ra_PREAMBLE_RECEIVED_TARGET_POWER = nr_get_Po_NOMINAL_PUSCH(mod_id, CC_id);
......@@ -278,7 +277,7 @@ void nr_get_prach_resources(module_id_t mod_id,
// - s_id is starting symbol of the PRACH occasion [0...14]
// - t_id is the first slot of the PRACH occasion in a system frame [0...80]
ul_carrier_id = 0; // todo SUL
ul_carrier_id = 0; // NUL
f_id = nr_rach_ConfigCommon->rach_ConfigGeneric.msg1_FrequencyStart;
SFN_nbr = table_6_3_3_2_3_prachConfig_Index[prach_ConfigIndex][4];
s_id = table_6_3_3_2_3_prachConfig_Index[prach_ConfigIndex][5];
......@@ -295,15 +294,13 @@ void nr_get_prach_resources(module_id_t mod_id,
LOG_D(MAC, "Computed ra_RNTI is %d", prach_resources->ra_RNTI);
}
// todo: RA_attempt_number not used TBR
void nr_Msg1_transmitted(module_id_t mod_id, uint8_t CC_id, frame_t frameP, uint8_t gNB_id){
NR_UE_MAC_INST_t *nr_UE_mac_inst = get_mac_inst(mod_id);
AssertFatal(CC_id == 0, "Transmission on secondary CCs is not supported yet\n");
NR_UE_MAC_INST_t *mac = get_mac_inst(mod_id);
mac->ra_state == WAIT_RAR;
// Start contention resolution timer
nr_UE_mac_inst->RA_attempt_number++; // todo this is not used
mac->RA_attempt_number++;
}
void nr_Msg3_transmitted(module_id_t mod_id, uint8_t CC_id, frame_t frameP, uint8_t gNB_id){
......@@ -313,8 +310,8 @@ void nr_Msg3_transmitted(module_id_t mod_id, uint8_t CC_id, frame_t frameP, uint
LOG_D(MAC,"[UE %d][RAPROC] Frame %d : Msg3_tx: Setting contention resolution timer\n", mod_id, frameP);
// start contention resolution timer
nr_UE_mac_inst->RA_contention_resolution_cnt = 0;
nr_UE_mac_inst->RA_contention_resolution_timer_active = 1;
mac->RA_contention_resolution_cnt = 0;
mac->RA_contention_resolution_timer_active = 1;
#endif
}
......@@ -326,6 +323,7 @@ void nr_Msg3_transmitted(module_id_t mod_id, uint8_t CC_id, frame_t frameP, uint
/// Only one RA procedure is ongoing at any point in time in a MAC entity
/// the RA procedure on a SCell shall only be initiated by PDCCH order
// WIP
NR_PRACH_RESOURCES_t *nr_ue_get_rach(module_id_t mod_id,
int CC_id,
UE_MODE_t UE_mode,
......@@ -333,31 +331,31 @@ NR_PRACH_RESOURCES_t *nr_ue_get_rach(module_id_t mod_id,
uint8_t gNB_id,
int nr_tti_tx){
NR_UE_MAC_INST_t *nr_UE_mac_inst = get_mac_inst(mod_id);
uint8_t lcid = CCCH, dcch_header_len = 0, mac_sdus[MAX_NR_ULSCH_PAYLOAD_BYTES], * payload;
NR_UE_MAC_INST_t *mac = get_mac_inst(mod_id);
uint8_t lcid = CCCH, dcch_header_len = 0, mac_sdus[MAX_NR_ULSCH_PAYLOAD_BYTES], * payload, ra_ResponseWindow;
uint16_t size_sdu = 0;
unsigned short post_padding;
NR_RACH_ConfigCommon_t *nr_rach_ConfigCommon = (struct NR_RACH_ConfigCommon_t *) NULL;
NR_PRACH_RESOURCES_t *prach_resources = &nr_UE_mac_inst->RA_prach_resources;
NR_PRACH_RESOURCES_t *prach_resources = &mac->RA_prach_resources;
int32_t frame_diff = 0;
uint8_t sdu_lcids[NB_RB_MAX] = {0}; // TBR
uint16_t sdu_lengths[NB_RB_MAX] = {0}; // TBR
int TBS_bytes = 848, header_length_total, num_sdus, offset; // TBR
int TBS_bytes = 848, header_length_total, num_sdus, offset, preambleTransMax; // TBR
AssertFatal(CC_id == 0,"Transmission on secondary CCs is not supported yet\n");
if (UE_mode == PRACH) {
LOG_D(MAC, "nr_ue_get_rach, RA_active value: %d", nr_UE_mac_inst->RA_active);
LOG_D(MAC, "nr_ue_get_rach, RA_active value: %d", mac->RA_active);
AssertFatal(nr_UE_mac_inst->nr_rach_ConfigCommon != NULL, "[UE %d] FATAL nr_rach_ConfigCommon is NULL !!!\n", mod_id);
AssertFatal(mac->nr_rach_ConfigCommon != NULL, "[UE %d] FATAL nr_rach_ConfigCommon is NULL !!!\n", mod_id);
if (nr_UE_mac_inst->nr_rach_ConfigCommon) { // TBR check the condition
nr_rach_ConfigCommon = nr_UE_mac_inst->nr_rach_ConfigCommon;
if (mac->nr_rach_ConfigCommon) { // TBR check the condition
nr_rach_ConfigCommon = mac->nr_rach_ConfigCommon;
} else return NULL;
if (nr_UE_mac_inst->RA_active == 0) {
if (mac->RA_active == 0) {
/* RA not active - checking if RRC is ready to initiate the RA procedure */
LOG_I(MAC, "RA not active. Starting RA preamble initialization.\n");
......@@ -371,7 +369,7 @@ NR_PRACH_RESOURCES_t *nr_ue_get_rach(module_id_t mod_id,
}
*/
nr_UE_mac_inst->RA_RAPID_found = 0;
mac->RA_RAPID_found = 0;
/* Set RA_PREAMBLE_POWER_RAMPING_STEP */
switch (nr_rach_ConfigCommon->rach_ConfigGeneric.powerRampingStep){ // in dB
......@@ -401,7 +399,7 @@ NR_PRACH_RESOURCES_t *nr_ue_get_rach(module_id_t mod_id,
if (!IS_SOFTMODEM_NOS1){
// todo mac_rrc_nr_data_req_ue
payload = &nr_UE_mac_inst->CCCH_pdu.payload;
payload = &mac->CCCH_pdu.payload;
size_sdu = (uint16_t) mac_rrc_nr_data_req_ue(mod_id,
CC_id,
frame,
......@@ -414,7 +412,7 @@ NR_PRACH_RESOURCES_t *nr_ue_get_rach(module_id_t mod_id,
} else {
// fill ulsch_buffer with random data
payload = (uint8_t *)nr_UE_mac_inst->ulsch_pdu.payload[0];
payload = (uint8_t *)mac->ulsch_pdu.payload[0];
for (int i = 0; i < TBS_bytes; i++){
mac_sdus[i] = (unsigned char) (lrand48()&0xff);
}
......@@ -427,11 +425,10 @@ NR_PRACH_RESOURCES_t *nr_ue_get_rach(module_id_t mod_id,
num_sdus +=1;
}
// TBR which frame and slot ?
nr_UE_mac_inst->RA_tx_frame = frame;
nr_UE_mac_inst->RA_tx_subframe = nr_tti_tx;
nr_UE_mac_inst->RA_backoff_frame = frame;
nr_UE_mac_inst->RA_backoff_subframe = nr_tti_tx;
mac->RA_tx_frame = frame;
mac->RA_tx_subframe = nr_tti_tx;
mac->RA_backoff_frame = frame;
mac->RA_backoff_subframe = nr_tti_tx;
if (size_sdu > 0) { // TBR size_sdu + MAC_Header_len + mac_ce_len
/* TBR initialisation by RRC
......@@ -439,20 +436,42 @@ NR_PRACH_RESOURCES_t *nr_ue_get_rach(module_id_t mod_id,
LOG_I(MAC, "[UE %d] Frame %d: Initialisation Random Access Procedure\n", mod_id, frame);
nr_UE_mac_inst->RA_PREAMBLE_TRANSMISSION_COUNTER = 1;
nr_UE_mac_inst->RA_PREAMBLE_POWER_RAMPING_COUNTER = 1;
nr_UE_mac_inst->RA_Msg3_size = size_sdu + sizeof(NR_MAC_SUBHEADER_SHORT) + sizeof(NR_MAC_SUBHEADER_SHORT); // TBR size_sdu + MAC_Header_len + mac_ce_len
nr_UE_mac_inst->RA_prachMaskIndex = 0;
mac->RA_PREAMBLE_TRANSMISSION_COUNTER = 1;
mac->RA_PREAMBLE_POWER_RAMPING_COUNTER = 1;
mac->RA_Msg3_size = size_sdu + sizeof(NR_MAC_SUBHEADER_SHORT) + sizeof(NR_MAC_SUBHEADER_SHORT); // TBR size_sdu + MAC_Header_len + mac_ce_len
mac->RA_prachMaskIndex = 0;
// TBR todo: add the backoff condition here if we have it from a previous RA reponse which failed (i.e. backoff indicator)
nr_UE_mac_inst->RA_backoff_cnt = 0;
nr_UE_mac_inst->RA_active = 1;
mac->RA_backoff_cnt = 0;
mac->RA_active = 1;
prach_resources->Msg3 = payload;
// TBR todo double check window count
// nr_UE_mac_inst->RA_window_cnt = 2 + nr_rach_ConfigCommon->ra_SupervisionInfo.ra_ResponseWindowSize;
// if (nr_UE_mac_inst->RA_window_cnt == 9) {
// nr_UE_mac_inst->RA_window_cnt = 10; // Note: 9 subframe window doesn't exist, after 8 is 10!
// }
ra_ResponseWindow = nr_rach_ConfigCommon->rach_ConfigGeneric.ra_ResponseWindow;
switch (ra_ResponseWindow) {
case 0:
mac->RA_window_cnt = 1;
break;
case 1:
mac->RA_window_cnt = 2;
break;
case 2:
mac->RA_window_cnt = 4;
break;
case 3:
mac->RA_window_cnt = 8;
break;
case 4:
mac->RA_window_cnt = 10;
break;
case 5:
mac->RA_window_cnt = 20;
break;
case 6:
mac->RA_window_cnt = 40;
break;
case 7:
mac->RA_window_cnt = 80;
break;
}
// Fill in preamble and PRACH resources
nr_get_prach_resources(mod_id, CC_id, gNB_id, nr_tti_tx, 1, NULL);
......@@ -487,50 +506,29 @@ NR_PRACH_RESOURCES_t *nr_ue_get_rach(module_id_t mod_id,
// todo:
// - handle beam failure recovery request
// - handle DL assignment on PDCCH for RA-RNTI
// - handle backoff and raResponseWindow params
LOG_D(MAC, "[MAC][UE %d][RAPROC] frame %d, subframe %d: RA Active, window cnt %d (RA_tx_frame %d, RA_tx_subframe %d)\n",
mod_id, frame, nr_tti_tx, nr_UE_mac_inst->RA_window_cnt, nr_UE_mac_inst->RA_tx_frame, nr_UE_mac_inst->RA_tx_subframe);
mod_id, frame, nr_tti_tx, mac->RA_window_cnt, mac->RA_tx_frame, mac->RA_tx_subframe);
if (nr_UE_mac_inst->rnti_type = NR_RNTI_RA){ // add condition on BI
// TBR todo
if (mac->RA_BI_found){
prach_resources->RA_PREAMBLE_BACKOFF = prach_resources->RA_SCALING_FACTOR_BI * mac->RA_backoff_indicator;
} else {
prach_resources->RA_PREAMBLE_BACKOFF = 0;
}
// compute backoff parameters
if (nr_UE_mac_inst->RA_backoff_cnt > 0){
frame_diff = (sframe_t) frame - nr_UE_mac_inst->RA_backoff_frame;
if (frame_diff < 0) frame_diff = -frame_diff;
nr_UE_mac_inst->RA_backoff_cnt -= ((10 * frame_diff) + (nr_tti_tx - nr_UE_mac_inst->RA_backoff_subframe));
nr_UE_mac_inst->RA_backoff_frame = frame;
nr_UE_mac_inst->RA_backoff_subframe = nr_tti_tx;
}
// - TBR check
// - TBR check
// compute RA window parameters
if (nr_UE_mac_inst->RA_window_cnt > 0){
frame_diff = (frame_t) frame - nr_UE_mac_inst->RA_tx_frame;
if (frame_diff < 0) frame_diff = -frame_diff;
nr_UE_mac_inst->RA_window_cnt -= ((10 * frame_diff) + (nr_tti_tx - nr_UE_mac_inst->RA_tx_subframe));
LOG_D(MAC, "[MAC][UE %d][RAPROC] Frame %d, subframe %d: RA Active, adjusted window cnt %d\n", mod_id, frame, nr_tti_tx, nr_UE_mac_inst->RA_window_cnt);
}
// - TBR check
//if ((nr_UE_mac_inst->RA_window_cnt <= 0) && (nr_UE_mac_inst->RA_backoff_cnt <= 0)){
if ((nr_UE_mac_inst->RA_window_cnt <= 0) && (nr_UE_mac_inst->RA_RAPID_found == 0)){ // TODO TBR double check the condition
LOG_I(MAC, "[MAC][UE %d][RAPROC] Frame %d: subframe %d: RAR reception not successful, (RA window count %d) \n", mod_id, frame, nr_tti_tx, nr_UE_mac_inst->RA_window_cnt);
nr_UE_mac_inst->RA_PREAMBLE_TRANSMISSION_COUNTER++;
// - TBR check RA_tx_frame RA_tx_subframe
nr_UE_mac_inst->RA_tx_frame = frame;
nr_UE_mac_inst->RA_tx_subframe = nr_tti_tx;
prach_resources->ra_PREAMBLE_RECEIVED_TARGET_POWER += (prach_resources->RA_PREAMBLE_POWER_RAMPING_STEP << 1); // 2dB increments in ASN.1 definition
// - TBR check ra_PREAMBLE_RECEIVED_TARGET_POWER increment
if (mac->RA_window_cnt > 0 && mac->RA_RAPID_found == 1) {
mac->ra_state == WAIT_CONTENTION_RESOLUTION;
} else {
LOG_I(MAC, "[MAC][UE %d][RAPROC] Frame %d: subframe %d: RAR reception not successful, (RA window count %d) \n",
mod_id,
frame,
nr_tti_tx,
mac->RA_window_cnt);
int preambleTransMax = -1;
mac->RA_PREAMBLE_TRANSMISSION_COUNTER++;
preambleTransMax = -1;
switch (nr_rach_ConfigCommon->rach_ConfigGeneric.preambleTransMax) {
case NR_RACH_ConfigGeneric__preambleTransMax_n3:
preambleTransMax = 3;
......@@ -567,25 +565,34 @@ NR_PRACH_RESOURCES_t *nr_ue_get_rach(module_id_t mod_id,
break;
}
if (nr_UE_mac_inst->RA_PREAMBLE_TRANSMISSION_COUNTER == preambleTransMax + 1){
if (mac->RA_PREAMBLE_TRANSMISSION_COUNTER == preambleTransMax + 1){
LOG_D(MAC, "[UE %d] Frame %d: Maximum number of RACH attempts (%d)\n", mod_id, frame, preambleTransMax);
// TBR select random backoff according to a uniform distribution between 0 and PREAMBLE_BACKOFF
// (rand() % prach_resources->RA_PREAMBLE_BACKOFF
// TODO TBR send message to RRC
nr_UE_mac_inst->RA_PREAMBLE_TRANSMISSION_COUNTER = 1;
prach_resources->ra_PREAMBLE_RECEIVED_TARGET_POWER = nr_get_Po_NOMINAL_PUSCH(mod_id, CC_id); // TBR check if this is necessary
mac->RA_backoff_cnt = rand() % (prach_resources->RA_PREAMBLE_BACKOFF + 1);
mac->RA_PREAMBLE_TRANSMISSION_COUNTER = 1;
prach_resources->RA_PREAMBLE_POWER_RAMPING_STEP << 1; // 2 dB increment
prach_resources->ra_PREAMBLE_RECEIVED_TARGET_POWER = nr_get_Po_NOMINAL_PUSCH(mod_id, CC_id);
}
// TBR ra_SupervisionInfo.ra_ResponseWindowSize is missing
// nr_UE_mac_inst->RA_window_cnt = 2 + nr_rach_ConfigCommon->ra_SupervisionInfo.ra_ResponseWindowSize;
nr_UE_mac_inst->RA_backoff_cnt = 0;
// compute backoff parameters
// if (mac->RA_backoff_cnt > 0){
// frame_diff = (sframe_t) frame - mac->RA_backoff_frame;
// if (frame_diff < 0) frame_diff = -frame_diff;
// mac->RA_backoff_frame = frame;
// mac->RA_backoff_subframe = nr_tti_tx;
// }
// compute RA window parameters
// if (mac->RA_window_cnt > 0){
// frame_diff = (frame_t) frame - mac->RA_tx_frame;
// if (frame_diff < 0) frame_diff = -frame_diff;
// mac->RA_window_cnt -= ((10 * frame_diff) + (nr_tti_tx - mac->RA_tx_subframe));
// LOG_D(MAC, "[MAC][UE %d][RAPROC] Frame %d, subframe %d: RA Active, adjusted window cnt %d\n", mod_id, frame, nr_tti_tx, mac->RA_window_cnt);
// }
mac->RA_tx_frame = frame;
mac->RA_tx_subframe = nr_tti_tx;
// Fill in preamble and PRACH resources
nr_get_prach_resources(mod_id, CC_id, gNB_id, nr_tti_tx, 0, NULL);
return (&nr_UE_mac_inst->RA_prach_resources);
return (&mac->RA_prach_resources);
}
}
} else if (UE_mode == PUSCH) {
......
openair2/LAYER2/NR_MAC_UE/rar_tools_nrUE.c
View file @ 156defcd
......@@ -47,103 +47,91 @@
#define DEBUG_RAR
uint16_t nr_ue_process_rar(const module_id_t mod_id,
const int CC_id,
const frame_t frameP,
const rnti_t ra_rnti,
uint8_t * const dlsch_buffer,
rnti_t * const t_crnti,
const uint8_t preamble_index,
// table 7.2-1 TS 38.321
uint8_t table_7_2_1[16] = {
{5}, // row index 0
{10}, // row index 1
{20}, // row index 2
{30}, // row index 3
{40}, // row index 4
{60}, // row index 5
{80}, // row index 6
{120}, // row index 7
{160}, // row index 8
{240}, // row index 9
{320}, // row index 10
{480}, // row index 11
{960}, // row index 12
{1920}, // row index 13
};
// WIP todo:
// - UL grant
uint16_t nr_ue_process_rar(module_id_t mod_id,
int CC_id,
frame_t frameP,
uint8_t * dlsch_buffer,
rnti_t * t_crnti,
uint8_t preamble_index,
uint8_t * selected_rar_buffer){
NR_UE_MAC_INST_t *nrUE_mac_inst = get_mac_inst(mod_id);
NR_RA_HEADER_RAPID *rarh = (NR_RA_HEADER_RAPID *) dlsch_buffer;
uint16_t ret = 0;
// NR_RAR_PDU *rar = (RAR_PDU *)(dlsch_buffer+1);
uint8_t *rar = (uint8_t *) (dlsch_buffer + 1);
// get the last RAR payload for working with CMW500
uint8_t n_rarpy = 0; // number of RAR payloads
uint8_t n_rarh = 0; // number of MAC RAR subheaders
NR_UE_MAC_INST_t *ue_mac = get_mac_inst(mod_id);
NR_RA_HEADER_RAPID *rarh = (NR_RA_HEADER_RAPID *) dlsch_buffer; // RAR subheader pointer
NR_MAC_RAR *rar = (NR_MAC_RAR *) (dlsch_buffer + 1); // RAR subPDU pointer
uint8_t n_subPDUs = 0; // number of RAR payloads
uint8_t n_subheaders = 0; // number of MAC RAR subheaders
uint8_t best_rx_rapid = -1; // the closest RAPID receive from all RARs
uint16_t ta_command = 0;
AssertFatal(CC_id == 0, "RAR reception on secondary CCs is not supported yet\n");
while (1) {
n_rarh++;
n_subheaders++;
if (rarh->T == 1) {
n_rarpy++;
LOG_D(MAC, "RAPID %d\n", rarh->RAPID);
n_subPDUs++;
LOG_D(MAC, "[UE %d][RAPROC] Got RAPID RAR subPDU %d\n", mod_id, rarh->RAPID);
} else {
n_subPDUs++;
ue_mac->RA_backoff_indicator = table_7_2_1[((NR_RA_HEADER_BI *)rarh)->BI];
ue_mac->RA_BI_found = 1;
LOG_D(MAC, "[UE %d][RAPROC] Got BI RAR subPDU %d\n", mod_id, ue_mac->RA_backoff_indicator);
}
if (rarh->RAPID == preamble_index) {
LOG_D(PHY, "Found RAR with the intended RAPID %d\n",
rarh->RAPID);
rar = (uint8_t *) (dlsch_buffer + n_rarh + (n_rarpy - 1) * 6);
nrUE_mac_inst->RA_RAPID_found = 1;
LOG_D(PHY, "[UE %d][RAPROC] Found RAR with the intended RAPID %d\n", rarh->RAPID);
rar = (NR_MAC_RAR *) (dlsch_buffer + n_subheaders + (n_subPDUs - 1) * sizeof(NR_MAC_RAR));
ue_mac->RA_RAPID_found = 1;
break;
}
if (abs((int) rarh->RAPID - (int) preamble_index) <
abs((int) best_rx_rapid - (int) preamble_index)) {
best_rx_rapid = rarh->RAPID;
rar = (uint8_t *) (dlsch_buffer + n_rarh + (n_rarpy - 1) * 6);
}
// if (abs((int) rarh->RAPID - (int) preamble_index) < abs((int) best_rx_rapid - (int) preamble_index)) {
// best_rx_rapid = rarh->RAPID;
// rar = (NR_MAC_RAR *) (dlsch_buffer + n_subheaders + (n_subPDUs - 1) * sizeof(NR_MAC_RAR));
// }
if (rarh->E == 0) {
LOG_I(PHY, "No RAR found with the intended RAPID. The closest RAPID in all RARs is %d\n", best_rx_rapid);
break;
} else {
rarh++;
rarh += sizeof(NR_MAC_RAR) + 1;
}
};
LOG_D(MAC, "number of RAR subheader %d; number of RAR pyloads %d\n",
n_rarh, n_rarpy);
LOG_I(MAC,
"[UE %d][RAPROC] Frame %d Received RAR (%02x|%02x.%02x.%02x.%02x.%02x.%02x) for preamble %d/%d\n",
mod_id, frameP, *(uint8_t *) rarh, rar[0], rar[1], rar[2],
rar[3], rar[4], rar[5], rarh->RAPID, preamble_index);
#ifdef DEBUG_RAR
LOG_D(MAC, "[UE %d][RAPROC] rarh->E %d\n", mod_id, rarh->E);
LOG_D(MAC, "[UE %d][RAPROC] rarh->T %d\n", mod_id, rarh->T);
LOG_D(MAC, "[UE %d][RAPROC] rarh->RAPID %d\n", mod_id,
rarh->RAPID);
// LOG_I(MAC,"[UE %d][RAPROC] rar->R %d\n",mod_id,rar->R);
LOG_D(MAC, "[UE %d][RAPROC] rar->Timing_Advance_Command %d\n",
mod_id, (((uint16_t) (rar[0] & 0x7f)) << 4) + (rar[1] >> 4));
// LOG_I(MAC,"[UE %d][RAPROC] rar->hopping_flag %d\n",mod_id,rar->hopping_flag);
// LOG_I(MAC,"[UE %d][RAPROC] rar->rb_alloc %d\n",mod_id,rar->rb_alloc);
// LOG_I(MAC,"[UE %d][RAPROC] rar->mcs %d\n",mod_id,rar->mcs);
// LOG_I(MAC,"[UE %d][RAPROC] rar->TPC %d\n",mod_id,rar->TPC);
// LOG_I(MAC,"[UE %d][RAPROC] rar->UL_delay %d\n",mod_id,rar->UL_delay);
// LOG_I(MAC,"[UE %d][RAPROC] rar->cqi_req %d\n",mod_id,rar->cqi_req);
LOG_D(MAC, "[UE %d][RAPROC] rar->t_crnti %x\n", mod_id,
(uint16_t) rar[5] + (rar[4] << 8));
#endif
if (opt_enabled) {
LOG_D(OPT,
"[UE %d][RAPROC] CC_id %d RAR Frame %d trace pdu for ra-RNTI %x\n",
mod_id, CC_id, frameP, ra_rnti);
/*trace_pdu(DIRECTION_DOWNLINK, (uint8_t *) dlsch_buffer, n_rarh + n_rarpy * 6,
mod_id, WS_RA_RNTI, ra_rnti, nrUE_mac_inst->rxFrame,
nrUE_mac_inst->rxSubframe, 0, 0);*/ // TODO TBR fix rxframe and subframe
}
if (preamble_index == rarh->RAPID) { // TBR double check this
*t_crnti = (uint16_t) rar[5] + (rar[4] << 8); //rar->t_crnti;
nrUE_mac_inst->crnti = *t_crnti; //rar->t_crnti;
//return(rar->Timing_Advance_Command);
ret = ((((uint16_t) (rar[0] & 0x7f)) << 4) + (rar[1] >> 4));
LOG_D(MAC, "number of RAR subheader %d; number of RAR pyloads %d\n", n_subheaders, n_subPDUs);
LOG_I(MAC, "[UE %d][RAPROC] Frame %d Received RAR (%02x|%02x.%02x.%02x.%02x.%02x.%02x) for preamble %d/%d\n",
mod_id, frameP, *(uint8_t *) rarh, rar[0], rar[1], rar[2], rar[3], rar[4], rar[5], rarh->RAPID, preamble_index);
if (ue_mac->RA_RAPID_found) {
*t_crnti = rar->TCRNTI_2 + (rar->TCRNTI_1 << 8);
ue_mac->t_crnti = *t_crnti;
ue_mac->rnti_type == NR_RNTI_TC;
ta_command = rar->TA2 + (rar->TA1 << 5);
} else {
nrUE_mac_inst->crnti = 0;
ret = (0xffff);
ue_mac->t_crnti = 0;
ta_command = (0xffff);
}
// move the selected RAR to the front of the RA_PDSCH buffer
memcpy(selected_rar_buffer + 0, (uint8_t *) rarh, 1);
memcpy(selected_rar_buffer + 1, (uint8_t *) rar, 6);
memcpy((void *) (selected_rar_buffer + 0), (void *) rarh, 1);
memcpy((void *) (selected_rar_buffer + 1), (void *) rar, sizeof(NR_MAC_RAR));
return ret;
return ta_command;
}
\ No newline at end of file
openair2/LAYER2/NR_MAC_gNB/gNB_scheduler.c
View file @ 156defcd
......@@ -382,7 +382,6 @@ void gNB_dlsch_ulsch_scheduler(module_id_t module_idP,
// Phytest scheduling
if (phy_test && slot_txP==1){
nr_schedule_uss_dlsch_phytest(module_idP, frame_txP, slot_txP,NULL);
// This schedules Random-Access for NR starting in subframeP
nr_schedule_RA(module_idP, frame_txP, slot_txP);
// resetting ta flag
gNB->ta_len = 0;
......
openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_RA.c
View file @ 156defcd
......@@ -78,7 +78,7 @@ void nr_initiate_ra_proc(module_id_t module_idP,
ra->preamble_subframe = slotP;
// if(cc->tdd_Config!=NULL){
// switch(cc->tdd_Config->subframeAssignment){ // TBR missing tdd_Config
// switch(cc->tdd_Config->subframeAssignment){
// default: printf("%s:%d: TODO\n", __FILE__, __LINE__); abort();
// case 1 :
// offset = 6;
......@@ -95,11 +95,11 @@ void nr_initiate_ra_proc(module_id_t module_idP,
nr_add_subframe(&msg2_frame, &msg2_slot, offset);
ra->Msg2_frame = msg2_frame;
ra->Msg2_subframe = msg2_slot;
ra->Msg2_slot = msg2_slot;
LOG_D(MAC, "%s() Msg2[%04d%d] SFN/SF:%04d%d offset:%d\n", __FUNCTION__, ra->Msg2_frame, ra->Msg2_subframe, frameP, slotP, offset);
LOG_D(MAC, "%s() Msg2[%04d%d] SFN/SF:%04d%d offset:%d\n", __FUNCTION__, ra->Msg2_frame, ra->Msg2_slot, frameP, slotP, offset);
ra->Msg2_subframe = (slotP + offset) % 10; // TBR this is done twice ?
ra->Msg2_slot = (slotP + offset) % 10; // TBR this is done twice ?
do {
ra->rnti = taus(); // todo 5.1.3 TS 38.321
......@@ -121,7 +121,7 @@ void nr_initiate_ra_proc(module_id_t module_idP,
CC_id,
frameP,
ra->Msg2_frame,
ra->Msg2_subframe,
ra->Msg2_slot,
ra->state);
return;
......@@ -137,157 +137,228 @@ void nr_initiate_ra_proc(module_id_t module_idP,
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_INITIATE_RA_PROC, 0);
}
// WIP
void nr_schedule_RA(module_id_t module_idP, frame_t frameP, sub_frame_t slotP){
//uint8_t i = 0;
int CC_id = 0;
gNB_MAC_INST *mac = RC.mac[module_idP];
NR_COMMON_channels_t *cc = mac->common_channels;
NR_RA_t *ra;
uint8_t i, CC_id = 0;
NR_COMMON_channels_t *cc = &mac->common_channels[CC_id];
NR_RA_t *ra = &cc->ra[0];
start_meas(&mac->schedule_ra);
for (i = 0; i < NR_NB_RA_PROC_MAX; i++) {
ra = (NR_RA_t *) & cc[CC_id].ra[i];
//for (i = 0; i < NR_NB_RA_PROC_MAX; i++) {
LOG_D(MAC,"RA[state:%d]\n",ra->state);
switch (ra->state){
case Msg2:
nr_generate_Msg2(module_idP, CC_id, frameP, slotP, ra);
//nr_generate_Msg2(module_idP, CC_id, frameP, slotP);
break;
case Msg4:
//generate_Msg4(module_idP, CC_id, frameP, slotP, ra); // TBR
//generate_Msg4(module_idP, CC_id, frameP, slotP, ra);
break;
case WAIT_Msg4_ACK:
check_Msg4_retransmission(module_idP, CC_id, frameP, slotP, ra);
break;
}
}
//}
stop_meas(&mac->schedule_ra);
}
void nr_generate_Msg2(module_id_t module_idP, int CC_id, frame_t frameP,
sub_frame_t slotP, NR_RA_t * ra){
// WIP
void nr_generate_Msg2(module_id_t module_idP,
int CC_id,
frame_t frameP,
sub_frame_t slotP){
int first_rb, N_RB_DL;
gNB_MAC_INST *mac = RC.nrmac[module_idP];
NR_COMMON_channels_t *cc = &mac->common_channels[CC_id];
uint8_t *vrb_map = cc[CC_id].vrb_map;
// /* TBR - MIGRATE TO THE NEW NFAPI */
// nfapi_nr_dl_tti_request_body_t *dl_req = &mac->DL_req[CC_id].dl_config_request_body;
// nfapi_nr_dl_tti_request_pdu_t *dl_config_pdu = &dl_req->dl_config_pdu_list[dl_req->number_pdu];
// nfapi_tx_request_pdu_t *TX_req;
//
// /* TBR: BW should be retrieved from
// // NR_ServingCellConfigCommonSIB_t -> NR_BWP_DownlinkCommon_t -> NR_BWP_t
// N_RB_DL = to_prb(cc[CC_id].mib->message.dl_Bandwidth);
// // Temporary hardcoded
// */
// N_RB_DL = 106;
//
// if ((ra->Msg2_frame == frameP) && (ra->Msg2_subframe == slotP)) {
//
// LOG_D(MAC,"[gNB %d] CC_id %d Frame %d, slotP %d:
// Generating RAR DCI, state %d\n",
// module_idP, CC_id, frameP, slotP, ra->state);
//
// // Allocate 4 PRBS starting in RB 0
// // commented out because preprocessor is missing
// /*first_rb = 0;
// vrb_map[first_rb] = 1;
// vrb_map[first_rb + 1] = 1;
// vrb_map[first_rb + 2] = 1;
// vrb_map[first_rb + 3] = 1;*/
//
// memset((void *) dl_config_pdu, 0, sizeof(nfapi_nr_dl_config_request_pdu_t));
//
// dl_config_pdu->pdu_type = NFAPI_NR_DL_CONFIG_DCI_DL_PDU_TYPE;
// dl_config_pdu->pdu_size = (uint8_t) (2 + sizeof(nfapi_dl_config_dci_dl_pdu));
// dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.tl.tag = NFAPI_DL_CONFIG_REQUEST_DCI_DL_PDU_REL8_TAG;
// dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.dci_format = NFAPI_DL_DCI_FORMAT_1A;
// dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.aggregation_level = 4;
// dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.rnti = ra->RA_rnti;
// dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.rnti_type = 2; // RA-RNTI : see Table 4-10 from SCF082 - nFAPI specifications
// dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.transmission_power = 6000; // equal to RS power
//
// dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.harq_process = 0;
// dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.tpc = 1; // no TPC
// dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.new_data_indicator_1 = 1;
// dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.mcs_1 = 0;
// dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.redundancy_version_1 = 0;
// dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.virtual_resource_block_assignment_flag = 0;
//
// dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.resource_block_coding = getRIV(N_RB_DL, first_rb, 4);
//
// // This checks if the above DCI allocation is feasible in current subframe
// if (!nr_CCE_allocation_infeasible(module_idP, CC_id, 0, slotP,
// dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.aggregation_level, ra->RA_rnti)) {
//
// LOG_D(MAC, "Frame %d: Subframe %d : Adding common DCI for RA_RNTI %x\n", frameP, slotP, ra->RA_rnti);
// dl_req->number_dci++;
// dl_req->number_pdu++;
//
// dl_config_pdu = &dl_req->dl_config_pdu_list[dl_req->number_pdu];
// memset((void *) dl_config_pdu, 0, sizeof(nfapi_nr_dl_config_request_pdu_t));
// dl_config_pdu->pdu_type = NFAPI_NR_DL_CONFIG_DCI_DL_PDU_TYPE;
// dl_config_pdu->pdu_size = (uint8_t) (2 + sizeof(nfapi_nr_dl_config_dlsch_pdu));
// dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.tl.tag = NFAPI_NR_DL_CONFIG_REQUEST_DLSCH_PDU_REL15_TAG;
// dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.pdu_index = mac->pdu_index[CC_id];
// dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.rnti = ra->RA_rnti;
// dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.resource_allocation_type = 2; // format 1A/1B/1D
// dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.virtual_resource_block_assignment_flag = 0; // localized
// dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.resource_block_coding = getRIV(N_RB_DL, first_rb, 4);
// dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.modulation = 2; //QPSK
// dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.redundancy_version = 0;
// dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.transport_blocks = 1; // first block
// dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.transport_block_to_codeword_swap_flag = 0;
// dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.transmission_scheme = (cc->p_eNB == 1) ? 0 : 1;
// dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.number_of_layers = 1;
// dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.number_of_subbands = 1;
// // dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.codebook_index = ;
// dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.ue_category_capacity = 1;
// dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.pa = 4; // 0 dB
// dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.delta_power_offset_index = 0;
// dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.ngap = 0;
// dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.nprb = get_subbandsize(cc->mib->message.dl_Bandwidth); // ignored
// dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.transmission_mode = (cc->p_eNB == 1) ? 1 : 2;
// dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.num_bf_prb_per_subband = 1;
// dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.num_bf_vector = 1;
// // dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.bf_vector = ;
// dl_req->number_pdu++;
// mac->DL_req[CC_id].sfn_sf = frameP<<4 | slotP;
//
// // Program UL processing for Msg3
// nr_get_Msg3alloc(&cc[CC_id], slotP, frameP,&ra->Msg3_frame, &ra->Msg3_subframe);
//
// LOG_D(MAC, "Frame %d, Subframe %d: Setting Msg3 reception for Frame %d Subframe %d\n",
// frameP, slotP, ra->Msg3_frame,
// ra->Msg3_subframe);
//
// nr_fill_rar(module_idP, CC_id, ra, frameP, cc[CC_id].RAR_pdu.payload, N_RB_DL, 7);
// nr_add_msg3(module_idP, CC_id, ra, frameP, slotP);
// ra->state = WAITMSG3;
// LOG_D(MAC,"[gNB %d][RAPROC] Frame %d, Subframe %d: state:WAITMSG3\n", module_idP, frameP, slotP);
//
// // DL request
// mac->TX_req[CC_id].sfn_sf = (frameP << 4) + slotP;
// TX_req = &mac->TX_req[CC_id].tx_request_body.tx_pdu_list[mac->TX_req[CC_id].tx_request_body.number_of_pdus];
// TX_req->pdu_length = 7; // This should be changed if we have more than 1 preamble
// TX_req->pdu_index = mac->pdu_index[CC_id]++;
// TX_req->num_segments = 1;
// TX_req->segments[0].segment_length = 7;
// TX_req->segments[0].segment_data = cc[CC_id].RAR_pdu.payload;
// mac->TX_req[CC_id].tx_request_body.number_of_pdus++;
//
// /*if(RC.mac[module_idP]->scheduler_mode == SCHED_MODE_FAIR_RR){
// set_dl_ue_select_msg2(CC_id, 4, -1, ra->rnti);
// }*/
// } // PDCCH CCE allocation is feasible
// } // Msg2 frame/subframe condition
int first_rb, UE_id = 0, dci_formats[2], rnti_types[2], CCEIndex, dlBWP_carrier_bandwidth, mcsIndex = 9;
int startSymbolAndLength = 0, StartSymbolIndex = -1, NrOfSymbols = 14, StartSymbolIndex_tmp, NrOfSymbols_tmp, x_Overhead, time_domain_assignment = 2;
int bwp_id = 1, coreset_id = 0, aggregation = 4, search_space = 0, N_RB_UL = 106;
gNB_MAC_INST *nr_mac = RC.nrmac[module_idP];
NR_COMMON_channels_t *cc = &nr_mac->common_channels[0];
NR_RA_t *ra = &cc->ra[0];
NR_UE_list_t *UE_list = &nr_mac->UE_list;
uint16_t rnti = ra->rnti, RA_rnti = ra->RA_rnti, numDlDci;
long locationAndBandwidth;
// uint8_t *vrb_map = cc[CC_id].vrb_map, CC_id;
if ((ra->Msg2_frame == frameP) && (ra->Msg2_slot == slotP)) {
// todo
// Allocate 4 PRBS starting in RB 0
// first_rb = 0;
// vrb_map[first_rb] = 1;
// vrb_map[first_rb + 1] = 1;
// vrb_map[first_rb + 2] = 1;
// vrb_map[first_rb + 3] = 1;
nfapi_nr_dl_tti_request_body_t *dl_req = &nr_mac->DL_req[CC_id].dl_tti_request_body;
nfapi_nr_dl_tti_request_pdu_t *dl_config_pdu = &dl_req->dl_tti_pdu_list[dl_req->nPDUs];
nfapi_nr_pdu_t *tx_req = &nr_mac->TX_req[CC_id].pdu_list[nr_mac->TX_req[CC_id].Number_of_PDUs];
nfapi_nr_dl_tti_request_pdu_t *dl_tti_pdcch_pdu = &dl_req->dl_tti_pdu_list[dl_req->nPDUs];
memset((void*)dl_tti_pdcch_pdu,0,sizeof(nfapi_nr_dl_tti_request_pdu_t));
dl_tti_pdcch_pdu->PDUType = NFAPI_NR_DL_TTI_PDCCH_PDU_TYPE;
dl_tti_pdcch_pdu->PDUSize = (uint8_t)(2+sizeof(nfapi_nr_dl_tti_pdcch_pdu));
nfapi_nr_dl_tti_request_pdu_t *dl_tti_pdsch_pdu = &dl_req->dl_tti_pdu_list[dl_req->nPDUs+1];
memset((void *)dl_tti_pdsch_pdu,0,sizeof(nfapi_nr_dl_tti_request_pdu_t));
dl_tti_pdsch_pdu->PDUType = NFAPI_NR_DL_TTI_PDSCH_PDU_TYPE;
dl_tti_pdsch_pdu->PDUSize = (uint8_t)(2+sizeof(nfapi_nr_dl_tti_pdsch_pdu));
nfapi_nr_dl_tti_pdcch_pdu_rel15_t *pdcch_pdu_rel15 = &dl_tti_pdcch_pdu->pdcch_pdu.pdcch_pdu_rel15;
nfapi_nr_dl_tti_pdsch_pdu_rel15_t *pdsch_pdu_rel15 = &dl_tti_pdsch_pdu->pdsch_pdu.pdsch_pdu_rel15;
nfapi_nr_dl_dci_pdu_t *dci_pdu = &pdcch_pdu_rel15->dci_pdu;
numDlDci = pdcch_pdu_rel15->numDlDci;
// Checking if the DCI allocation is feasible in current subframe
if (dl_req->nPDUs == NFAPI_NR_MAX_DL_TTI_PDUS) {
LOG_I(MAC, "[RAPROC] Subframe %d: FAPI DL structure is full, skip scheduling UE %d\n", slotP, RA_rnti);
return;
} else {
LOG_D(MAC, "[RAPROC] Subframe %d: Checking CCE feasibility format : (%x,%d) \n", slotP, RA_rnti, aggregation);
CCEIndex = allocate_nr_CCEs(nr_mac, bwp_id, coreset_id, aggregation, search_space, UE_id, 0);
AssertFatal(CCEIndex > 0,"CCEIndex is negative\n");
}
LOG_D(MAC,"[gNB %d] [RAPROC] CC_id %d Frame %d, slotP %d: Generating RAR DCI, state %d\n", module_idP, CC_id, frameP, slotP, ra->state);
NR_ServingCellConfigCommon_t *scc = cc->ServingCellConfigCommon;
locationAndBandwidth = scc->downlinkConfigCommon->initialDownlinkBWP->genericParameters.locationAndBandwidth;
dlBWP_carrier_bandwidth = NRRIV2BW(locationAndBandwidth,275);
NR_CellGroupConfig_t *secondaryCellGroup = UE_list->secondaryCellGroup[UE_id];
AssertFatal(secondaryCellGroup->spCellConfig->spCellConfigDedicated->downlinkBWP_ToAddModList->list.count == 1,
"downlinkBWP_ToAddModList has %d BWP!\n", secondaryCellGroup->spCellConfig->spCellConfigDedicated->downlinkBWP_ToAddModList->list.count);
NR_BWP_Downlink_t *bwp = secondaryCellGroup->spCellConfig->spCellConfigDedicated->downlinkBWP_ToAddModList->list.array[bwp_id - 1];
LOG_D(MAC, "[RAPROC] Scheduling common search space DCI type 1 dlBWP BW.firstRB %d.%d\n", dlBWP_carrier_bandwidth,
NRRIV2PRBOFFSET(locationAndBandwidth, 275));
pdsch_pdu_rel15->pduBitmap = 0;
pdsch_pdu_rel15->rnti = rnti;
pdsch_pdu_rel15->pduIndex = 0;
pdsch_pdu_rel15->BWPSize = NRRIV2BW(locationAndBandwidth,275);
pdsch_pdu_rel15->BWPStart = NRRIV2PRBOFFSET(locationAndBandwidth,275);
pdsch_pdu_rel15->SubcarrierSpacing = scc->downlinkConfigCommon->initialDownlinkBWP->genericParameters.subcarrierSpacing;
pdsch_pdu_rel15->CyclicPrefix = 0;
pdsch_pdu_rel15->NrOfCodewords = 1;
pdsch_pdu_rel15->targetCodeRate[0] = nr_get_code_rate_dl(mcsIndex,0);
pdsch_pdu_rel15->qamModOrder[0] = 2;
pdsch_pdu_rel15->mcsIndex[0] = mcsIndex;
pdsch_pdu_rel15->mcsTable[0] = 0;
pdsch_pdu_rel15->rvIndex[0] = 0;
pdsch_pdu_rel15->dataScramblingId = *scc->physCellId;
pdsch_pdu_rel15->nrOfLayers = 1;
pdsch_pdu_rel15->transmissionScheme = 0;
pdsch_pdu_rel15->refPoint = 0;
pdsch_pdu_rel15->dmrsConfigType = 0;
pdsch_pdu_rel15->dlDmrsScramblingId = *scc->physCellId;
pdsch_pdu_rel15->SCID = 0;
pdsch_pdu_rel15->numDmrsCdmGrpsNoData = 1;
pdsch_pdu_rel15->dmrsPorts = 1;
pdsch_pdu_rel15->resourceAlloc = 1;
pdsch_pdu_rel15->rbStart = 0;
pdsch_pdu_rel15->rbSize = 6;
pdsch_pdu_rel15->VRBtoPRBMapping = 1;
for (int i=0; i<scc->downlinkConfigCommon->initialDownlinkBWP->pdsch_ConfigCommon->choice.setup->pdsch_TimeDomainAllocationList->list.count; i++) {
startSymbolAndLength = scc->downlinkConfigCommon->initialDownlinkBWP->pdsch_ConfigCommon->choice.setup->pdsch_TimeDomainAllocationList->list.array[i]->startSymbolAndLength;
SLIV2SL(startSymbolAndLength, &StartSymbolIndex_tmp, &NrOfSymbols_tmp);
if (NrOfSymbols_tmp < NrOfSymbols) {
NrOfSymbols = NrOfSymbols_tmp;
StartSymbolIndex = StartSymbolIndex_tmp;
}
}
AssertFatal(StartSymbolIndex >= 0, "StartSymbolIndex is negative\n");
pdsch_pdu_rel15->StartSymbolIndex = StartSymbolIndex;
pdsch_pdu_rel15->NrOfSymbols = NrOfSymbols;
pdsch_pdu_rel15->dlDmrsSymbPos = fill_dmrs_mask(NULL, scc->dmrs_TypeA_Position, NrOfSymbols);
dci_pdu_rel15_t dci_pdu_rel15[MAX_DCI_CORESET];
dci_pdu_rel15[0].frequency_domain_assignment = PRBalloc_to_locationandbandwidth0(pdsch_pdu_rel15->rbSize,
pdsch_pdu_rel15->rbStart,
NRRIV2BW(bwp->bwp_Common->genericParameters.locationAndBandwidth, 275));
dci_pdu_rel15[0].time_domain_assignment = time_domain_assignment;
dci_pdu_rel15[0].vrb_to_prb_mapping = 1;
dci_pdu_rel15[0].mcs = pdsch_pdu_rel15->mcsIndex[0];
dci_pdu_rel15[0].tb_scaling = 1;
dci_pdu_rel15[0].frequency_hopping_flag = 0;
dci_pdu_rel15[0].ra_preamble_index = ra->preamble_index;
dci_pdu_rel15[0].format_indicator = 1;
dci_pdu_rel15[0].ndi = 1;
dci_pdu_rel15[0].rv = 0;
dci_pdu_rel15[0].harq_pid = 0;
dci_pdu_rel15[0].dai = 2;
dci_pdu_rel15[0].tpc = 2;
dci_pdu_rel15[0].pucch_resource_indicator = 7;
dci_pdu_rel15[0].pdsch_to_harq_feedback_timing_indicator = 7;
LOG_D(MAC, "[RAPROC] DCI type 1 payload: freq_alloc %d (%d,%d,%d), time_alloc %d, vrb to prb %d, mcs %d tb_scaling %d ndi %d rv %d\n",
dci_pdu_rel15[0].frequency_domain_assignment,
pdsch_pdu_rel15->rbStart,
pdsch_pdu_rel15->rbSize,
NRRIV2BW(bwp->bwp_Common->genericParameters.locationAndBandwidth,275),
dci_pdu_rel15[0].time_domain_assignment,
dci_pdu_rel15[0].vrb_to_prb_mapping,
dci_pdu_rel15[0].mcs,
dci_pdu_rel15[0].tb_scaling,
dci_pdu_rel15[0].ndi,
dci_pdu_rel15[0].rv);
nr_configure_pdcch(pdcch_pdu_rel15, 0, scc, bwp);
LOG_D(MAC, "Frame %d: Subframe %d : Adding common DL DCI for RA_RNTI %x CCEIndex %d\n", frameP, slotP, RA_rnti, CCEIndex);
dci_pdu->RNTI[numDlDci] = RA_rnti;
dci_pdu->AggregationLevel[numDlDci] = aggregation;
dci_pdu->powerControlOffsetSS[numDlDci] = 0;
dci_pdu->CceIndex[numDlDci] = CCEIndex;
dci_pdu->beta_PDCCH_1_0[numDlDci] = 0;
dci_pdu->powerControlOffsetSS[numDlDci] = 1;
dci_formats[0] = NR_DL_DCI_FORMAT_1_0;
rnti_types[0] = NR_RNTI_RA;
LOG_D(MAC, "[RAPROC] DCI params: rnti %d, rnti_type %d, dci_format %d coreset params: FreqDomainResource %llx, start_symbol %d n_symb %d\n",
pdcch_pdu_rel15->dci_pdu.RNTI[0],
rnti_types[0],
dci_formats[0],
(unsigned long long)pdcch_pdu_rel15->FreqDomainResource,
pdcch_pdu_rel15->StartSymbolIndex,
pdcch_pdu_rel15->DurationSymbols);
dci_pdu->PayloadSizeBits[0] = nr_dci_size(dci_formats[0], rnti_types[0], pdcch_pdu_rel15->BWPSize);
fill_dci_pdu_rel15(pdcch_pdu_rel15, &dci_pdu_rel15[0], dci_formats, rnti_types);
pdcch_pdu_rel15->numDlDci++;
dl_req->nPDUs++;
// Program UL processing for Msg3
// nr_get_Msg3alloc(&cc[CC_id], slotP, frameP,&ra->Msg3_frame, &ra->Msg3_slot);
LOG_D(MAC, "Frame %d, Subframe %d: Setting Msg3 reception for Frame %d Subframe %d\n", frameP, slotP, ra->Msg3_frame, ra->Msg3_slot);
nr_fill_rar(ra, cc[CC_id].RAR_pdu.payload, N_RB_UL);
nr_add_msg3(module_idP, CC_id, frameP, slotP);
ra->state = WAIT_Msg3;
LOG_D(MAC,"[gNB %d][RAPROC] Frame %d, Subframe %d: RA state %d\n", module_idP, frameP, slotP, ra->state);
x_Overhead = 0;
nr_get_tbs_dl(&dl_tti_pdsch_pdu->pdsch_pdu, x_Overhead);
// DL TX request
tx_req->PDU_length = pdsch_pdu_rel15->TBSize[0];
tx_req->PDU_index = nr_mac->pdu_index[CC_id]++;
tx_req->num_TLV = 1;
tx_req->TLVs[0].length = 8;
nr_mac->TX_req[CC_id].SFN = frameP;
nr_mac->TX_req[CC_id].Number_of_PDUs++;
nr_mac->TX_req[CC_id].Slot = slotP;
memcpy((void*)&tx_req->TLVs[0].value.direct[0], (void*)&cc[CC_id].RAR_pdu.payload[0], tx_req->TLVs[0].length);
}
}
void nr_clear_ra_proc(module_id_t module_idP, int CC_id, frame_t frameP){
unsigned char i;
NR_RA_t *ra = (NR_RA_t *) &RC.mac[module_idP]->common_channels[CC_id].ra[0];
NR_RA_t *ra = &RC.mac[module_idP]->common_channels[CC_id].ra[0];
LOG_D(MAC,"[gNB %d][RAPROC] CC_id %d Frame %d Clear Random access information rnti %x\n", module_idP, CC_id, frameP, ra->rnti);
ra->state = IDLE;
ra->timing_offset = 0;
......@@ -296,201 +367,160 @@ void nr_clear_ra_proc(module_id_t module_idP, int CC_id, frame_t frameP){
ra->msg3_round = 0;
}
unsigned short nr_fill_rar(const module_id_t mod_id,
const int CC_id,
NR_RA_t * ra,
const frame_t frameP,
uint8_t * const dlsch_buffer,
const uint16_t N_RB_UL,
const uint8_t input_buffer_length){
RA_HEADER_RAPID *rarh = (NR_RA_HEADER_RAPID *) dlsch_buffer;
uint8_t *rar = (uint8_t *) (dlsch_buffer + 1);
/* E/T/RAPID subheader
- E = 0, one only RAR, first and last
- T = 1, E/T/RAPID subheader */
// todo:
// - handle MAC RAR BI subheader
// - sending only 1 RAR subPDU
// - UL Grant
// - padding
void nr_fill_rar(NR_RA_t * ra,
uint8_t * dlsch_buffer,
uint16_t N_RB_UL){
LOG_D(MAC, "[gNB] Generate RAR MAC PDU frame %d slot %d ", ra->Msg2_frame, ra-> Msg2_slot);
NR_RA_HEADER_RAPID *rarh = (NR_RA_HEADER_RAPID *) dlsch_buffer;
NR_MAC_RAR *rar = (NR_MAC_RAR *) (dlsch_buffer + 1);
// E/T/RAPID subheader
// E = 0, one only RAR, first and last
// T = 1, RAPID
rarh->E = 0;
rarh->T = 1;
rarh->RAPID = ra->preamble_index; // TBR Respond to Preamble 0 only for the moment
/* TBR handle MAC RAR BI subheader*/
/* TC-RNTI */
// TBR double check
rar[5] = (uint8_t) (ra->rnti >> 8);
rar[6] = (uint8_t) (ra->rnti & 0xff);
// TBR double check
/* Timing Advance Command */
// TBR double check
//ra->timing_offset = 0;
//printf("ra->timing_offset %d\n", ra->timing_offset); // TBR remove
ra->timing_offset /= 16; //T_A = N_TA/16, where N_TA should be on a 30.72Msps
rar[0] = (uint8_t) (ra->timing_offset >> (2 + 4)); // 7 MSBs of timing advance + divide by 4
rar[1] = (uint8_t) (ra->timing_offset << (4 - 2)) & 0xf0; // 4 LSBs of timing advance + divide by 4
// TBR double check
// TBR double check
COMMON_channels_t *cc = &RC.mac[mod_id]->common_channels[CC_id];
if(N_RB_UL == 25){
ra->msg3_first_rb = 1;
}else{
// if (cc->tdd_Config && N_RB_UL == 100) { // TBR missing tdd_Config
rarh->RAPID = ra->preamble_index;
// RAR MAC payload
rar->R = 0;
rar->TA1 = (uint8_t) (ra->timing_offset >> 5); // 7 MSBs of timing advance
rar->TA2 = (uint8_t) (ra->timing_offset & 0x1f); // 5 LSBs of timing advance
rar->TCRNTI_1 = (uint8_t) (ra->rnti >> 8); // 8 MSBs of rnti
rar->TCRNTI_2 = (uint8_t) (ra->rnti & 0xff); // 8 LSBs of rnti
// uint16_t rballoc = nr_mac_compute_RIV(N_RB_UL, ra->msg3_first_rb, ra->msg3_nb_rb); // first PRB only for UL Grant
// uint32_t buffer = 0;
// rar->UL_GRANT_1 = (uint8_t) (buffer >> 24) & 0x7;
// rar->UL_GRANT_2 = (uint8_t) (buffer >> 16) & 0xFF;
// rar->UL_GRANT_3 = (uint8_t) (buffer >> 8) & 0xFF;
// rar->UL_GRANT_4 = (uint8_t) buffer & 0xff;
}
// WIP
void nr_add_msg3(module_id_t module_idP, int CC_id, frame_t frameP, sub_frame_t slotP){
gNB_MAC_INST *mac = RC.nrmac[module_idP];
NR_COMMON_channels_t *cc = &mac->common_channels[CC_id];
NR_ServingCellConfigCommon_t *scc = cc->ServingCellConfigCommon;
NR_RA_t *ra = &cc->ra[0];
NR_UE_list_t *UE_list = &mac->UE_list;
nfapi_nr_ul_tti_request_t *ul_req = &mac->UL_tti_req[0];
nfapi_nr_ul_dci_request_t *UL_dci_req = &mac->UL_dci_req[0];
nfapi_nr_pusch_pdu_t *pusch_pdu = &ul_req->pdus_list[0].pusch_pdu;
nfapi_nr_ul_dci_request_pdus_t *ul_dci_request_pdu = &UL_dci_req->ul_dci_pdu_list[UL_dci_req->numPdus];
int UE_id = 0, CCEIndex, dci_formats[2], rnti_types[2], bwp_id = 1, coreset_id = 0, aggregation = 4, search_space = 1;
AssertFatal(ra->state != IDLE, "RA is not active for RA %X\n", ra->rnti);
// if(N_RB_UL == 25) {
// ra->msg3_first_rb = 1;
// } else {
// if (cc->tdd_Config && N_RB_UL == 100) {
// ra->msg3_first_rb = 3;
// } else {
// ra->msg3_first_rb = 2;
// }
}
ra->msg3_nb_rb = 1;
// TBR double check
/* UL Grant */
// TBR fix this
uint16_t rballoc = nr_mac_compute_RIV(N_RB_UL, ra->msg3_first_rb, ra->msg3_nb_rb); // first PRB only for UL Grant
rar[1] |= (rballoc >> 7) & 7; // Hopping = 0 (bit 3), 3 MSBs of rballoc
rar[2] = ((uint8_t) (rballoc & 0xff)) << 1; // 7 LSBs of rballoc
ra->msg3_mcs = 10;
ra->msg3_TPC = 3;
ra->msg3_ULdelay = 0;
ra->msg3_cqireq = 0;
ra->msg3_round = 0;
rar[2] |= ((ra->msg3_mcs & 0x8) >> 3); // mcs 10
rar[3] = (((ra->msg3_mcs & 0x7) << 5)) | ((ra->msg3_TPC & 7) << 2) | ((ra->msg3_ULdelay & 1) << 1) | (ra->msg3_cqireq & 1);
// TBR double check
return ra->rnti;
}
void nr_add_msg3(module_id_t module_idP, int CC_id, NR_RA_t *ra, frame_t frameP, sub_frame_t subframeP){
#if 0
eNB_MAC_INST *mac = RC.mac[module_idP];
COMMON_channels_t *cc = &mac->common_channels[CC_id];
uint8_t j;
nfapi_ul_config_request_t *ul_req;
nfapi_ul_config_request_body_t *ul_req_body;
nfapi_ul_config_request_pdu_t *ul_config_pdu;
nfapi_hi_dci0_request_t *hi_dci0_req;
nfapi_hi_dci0_request_body_t *hi_dci0_req_body;
nfapi_hi_dci0_request_pdu_t *hi_dci0_pdu;
uint8_t sf_ahead_dl;
uint8_t rvseq[4] = {0, 2, 3, 1};
ul_req = &mac->UL_req_tmp[CC_id][ra->Msg3_subframe];
ul_req_body = &ul_req->ul_config_request_body;
AssertFatal(ra->state != IDLE, "RA is not active for RA %X\n",
// }
// ra->msg3_nb_rb = 1;
// /* UL Grant */
// ra->msg3_mcs = 10;
// ra->msg3_TPC = 3;
// ra->msg3_ULdelay = 0;
// ra->msg3_cqireq = 0;
// ra->msg3_round = 0;
LOG_D(MAC, "[gNB %d][RAPROC] Frame %d, Subframe %d : CC_id %d RA is active, Msg3 in (%d,%d)\n", module_idP, frameP, slotP, CC_id, ra->Msg3_frame, ra->Msg3_slot);
ul_req->SFN = ra->Msg3_frame << 4 | ra->Msg3_slot; // TBR
ul_req->Slot = slotP;
ul_req->n_pdus = 1;
ul_req->pdus_list[0].pdu_type = NFAPI_NR_UL_CONFIG_PUSCH_PDU_TYPE;
ul_req->pdus_list[0].pdu_size = sizeof(nfapi_nr_pusch_pdu_t);
memset(pusch_pdu, 0, sizeof(nfapi_nr_pusch_pdu_t));
memset((void*)ul_dci_request_pdu,0,sizeof(nfapi_nr_ul_dci_request_pdus_t));
ul_dci_request_pdu->PDUType = NFAPI_NR_DL_TTI_PDCCH_PDU_TYPE;
ul_dci_request_pdu->PDUSize = (uint8_t)(2+sizeof(nfapi_nr_dl_tti_pdcch_pdu));
nfapi_nr_dl_tti_pdcch_pdu_rel15_t *pdcch_pdu_rel15 = &ul_dci_request_pdu->pdcch_pdu.pdcch_pdu_rel15;
AssertFatal(UE_list->active[UE_id] >=0,"Cannot find UE_id %d is not active\n", UE_id);
NR_CellGroupConfig_t *secondaryCellGroup = UE_list->secondaryCellGroup[UE_id];
AssertFatal(secondaryCellGroup->spCellConfig->spCellConfigDedicated->downlinkBWP_ToAddModList->list.count == 1,
"downlinkBWP_ToAddModList has %d BWP!\n", secondaryCellGroup->spCellConfig->spCellConfigDedicated->downlinkBWP_ToAddModList->list.count);
NR_BWP_Uplink_t *ubwp=secondaryCellGroup->spCellConfig->spCellConfigDedicated->uplinkConfig->uplinkBWP_ToAddModList->list.array[bwp_id-1];
NR_BWP_Downlink_t *bwp=secondaryCellGroup->spCellConfig->spCellConfigDedicated->downlinkBWP_ToAddModList->list.array[bwp_id-1];
LOG_D(MAC, "Frame %d, Subframe %d Adding Msg3 UL Config Request for (%d,%d) : (%d,%d,%d) for rnti: %d\n",
frameP,
slotP,
ra->Msg3_frame,
ra->Msg3_slot,
ra->msg3_nb_rb,
ra->msg3_first_rb,
ra->msg3_round,
ra->rnti);
#if (LTE_RRC_VERSION >= MAKE_VERSION(14, 0, 0))
if (ra->rach_resource_type > 0) {
LOG_D (MAC, "[eNB %d][RAPROC] Frame %d, Subframe %d : CC_id %d CE level %d is active, Msg3 in (%d,%d)\n",
module_idP, frameP, subframeP, CC_id, ra->rach_resource_type - 1, ra->Msg3_frame, ra->Msg3_subframe);
LOG_D (MAC, "Frame %d, Subframe %d Adding Msg3 UL Config Request for (%d,%d) : (%d,%d)\n",
frameP, subframeP, ra->Msg3_frame, ra->Msg3_subframe, ra->msg3_nb_rb, ra->msg3_round);
ul_config_pdu = &ul_req_body->ul_config_pdu_list[ul_req_body->number_of_pdus];
memset ((void *) ul_config_pdu, 0, sizeof (nfapi_ul_config_request_pdu_t));
ul_config_pdu->pdu_type = NFAPI_UL_CONFIG_ULSCH_PDU_TYPE;
ul_config_pdu->pdu_size = (uint8_t) (2 + sizeof (nfapi_ul_config_ulsch_pdu));
ul_config_pdu->ulsch_pdu.ulsch_pdu_rel8.handle = mac->ul_handle++;
ul_config_pdu->ulsch_pdu.ulsch_pdu_rel8.rnti = ra->rnti;
ul_config_pdu->ulsch_pdu.ulsch_pdu_rel8.resource_block_start = narrowband_to_first_rb (cc, ra->msg34_narrowband) + ra->msg3_first_rb;
ul_config_pdu->ulsch_pdu.ulsch_pdu_rel8.number_of_resource_blocks = ra->msg3_nb_rb;
ul_config_pdu->ulsch_pdu.ulsch_pdu_rel8.modulation_type = 2;
ul_config_pdu->ulsch_pdu.ulsch_pdu_rel8.cyclic_shift_2_for_drms = 0;
ul_config_pdu->ulsch_pdu.ulsch_pdu_rel8.frequency_hopping_enabled_flag = 0;
ul_config_pdu->ulsch_pdu.ulsch_pdu_rel8.frequency_hopping_bits = 0;
ul_config_pdu->ulsch_pdu.ulsch_pdu_rel8.new_data_indication = 0;
ul_config_pdu->ulsch_pdu.ulsch_pdu_rel8.redundancy_version = rvseq[ra->msg3_round];
ul_config_pdu->ulsch_pdu.ulsch_pdu_rel8.harq_process_number = 0;
ul_config_pdu->ulsch_pdu.ulsch_pdu_rel8.ul_tx_mode = 0;
ul_config_pdu->ulsch_pdu.ulsch_pdu_rel8.current_tx_nb = 0;
ul_config_pdu->ulsch_pdu.ulsch_pdu_rel8.n_srs = 1;
ul_config_pdu->ulsch_pdu.ulsch_pdu_rel8.size = get_TBS_UL (ra->msg3_mcs, ra->msg3_nb_rb);
// Re13 fields
ul_config_pdu->ulsch_pdu.ulsch_pdu_rel13.ue_type = ra->rach_resource_type > 2 ? 2 : 1;
ul_config_pdu->ulsch_pdu.ulsch_pdu_rel13.total_number_of_repetitions = 1;
ul_config_pdu->ulsch_pdu.ulsch_pdu_rel13.repetition_number = 1;
ul_config_pdu->ulsch_pdu.ulsch_pdu_rel13.initial_transmission_sf_io = (ra->Msg3_frame * 10) + ra->Msg3_subframe;
ul_req_body->number_of_pdus++;
} // if (ra->rach_resource_type>0) {
else
#endif
{
LOG_D(MAC,
"[eNB %d][RAPROC] Frame %d, Subframe %d : CC_id %d RA is active, Msg3 in (%d,%d)\n",
module_idP, frameP, subframeP, CC_id, ra->Msg3_frame,
ra->Msg3_subframe);
LOG_D(MAC,
"Frame %d, Subframe %d Adding Msg3 UL Config Request for (%d,%d) : (%d,%d,%d) for rnti: %d\n",
frameP, subframeP, ra->Msg3_frame, ra->Msg3_subframe,
ra->msg3_nb_rb, ra->msg3_first_rb, ra->msg3_round, ra->rnti);
ul_config_pdu = &ul_req_body->ul_config_pdu_list[ul_req_body->number_of_pdus];
memset((void *) ul_config_pdu, 0, sizeof(nfapi_ul_config_request_pdu_t));
ul_config_pdu->pdu_type = NFAPI_UL_CONFIG_ULSCH_PDU_TYPE;
ul_config_pdu->pdu_size = (uint8_t) (2 + sizeof(nfapi_ul_config_ulsch_pdu));
ul_config_pdu->ulsch_pdu.ulsch_pdu_rel8.tl.tag = NFAPI_UL_CONFIG_REQUEST_ULSCH_PDU_REL8_TAG;
ul_config_pdu->ulsch_pdu.ulsch_pdu_rel8.handle = mac->ul_handle++;
ul_config_pdu->ulsch_pdu.ulsch_pdu_rel8.rnti = ra->rnti;
ul_config_pdu->ulsch_pdu.ulsch_pdu_rel8.resource_block_start = ra->msg3_first_rb;
AssertFatal(ra->msg3_nb_rb > 0, "nb_rb = 0\n");
ul_config_pdu->ulsch_pdu.ulsch_pdu_rel8.number_of_resource_blocks = ra->msg3_nb_rb;
ul_config_pdu->ulsch_pdu.ulsch_pdu_rel8.modulation_type = 2;
ul_config_pdu->ulsch_pdu.ulsch_pdu_rel8.cyclic_shift_2_for_drms = 0;
ul_config_pdu->ulsch_pdu.ulsch_pdu_rel8.frequency_hopping_enabled_flag = 0;
ul_config_pdu->ulsch_pdu.ulsch_pdu_rel8.frequency_hopping_bits = 0;
ul_config_pdu->ulsch_pdu.ulsch_pdu_rel8.new_data_indication = 0;
ul_config_pdu->ulsch_pdu.ulsch_pdu_rel8.redundancy_version = rvseq[ra->msg3_round];
ul_config_pdu->ulsch_pdu.ulsch_pdu_rel8.harq_process_number = subframe2harqpid(cc, ra->Msg3_frame, ra->Msg3_subframe);
ul_config_pdu->ulsch_pdu.ulsch_pdu_rel8.ul_tx_mode = 0;
ul_config_pdu->ulsch_pdu.ulsch_pdu_rel8.current_tx_nb = 0;
ul_config_pdu->ulsch_pdu.ulsch_pdu_rel8.n_srs = 1;
ul_config_pdu->ulsch_pdu.ulsch_pdu_rel8.size = get_TBS_UL(10, ra->msg3_nb_rb);
ul_req_body->number_of_pdus++;
ul_req_body->tl.tag = NFAPI_UL_CONFIG_REQUEST_BODY_TAG;
ul_req->sfn_sf = ra->Msg3_frame<<4|ra->Msg3_subframe;
ul_req->header.message_id = NFAPI_UL_CONFIG_REQUEST;
// save UL scheduling information for preprocessor
for (j = 0; j < ra->msg3_nb_rb; j++)
cc->vrb_map_UL[ra->msg3_first_rb + j] = 1;
LOG_D(MAC, "MSG3: UL_CONFIG SFN/SF:%d number_of_pdus:%d ra->msg3_round:%d\n", NFAPI_SFNSF2DEC(ul_req->sfn_sf), ul_req_body->number_of_pdus, ra->msg3_round);
if (ra->msg3_round != 0) { // program HI too
sf_ahead_dl = ul_subframe2_k_phich(cc, subframeP);
hi_dci0_req = &mac->HI_DCI0_req[CC_id][(subframeP+sf_ahead_dl)%10];
hi_dci0_req_body = &hi_dci0_req->hi_dci0_request_body;
hi_dci0_pdu = &hi_dci0_req_body->hi_dci0_pdu_list[hi_dci0_req_body->number_of_dci + hi_dci0_req_body->number_of_hi];
memset((void *) hi_dci0_pdu, 0,
sizeof(nfapi_hi_dci0_request_pdu_t));
hi_dci0_pdu->pdu_type = NFAPI_HI_DCI0_HI_PDU_TYPE;
hi_dci0_pdu->pdu_size = 2 + sizeof(nfapi_hi_dci0_hi_pdu);
hi_dci0_pdu->hi_pdu.hi_pdu_rel8.tl.tag = NFAPI_HI_DCI0_REQUEST_HI_PDU_REL8_TAG;
hi_dci0_pdu->hi_pdu.hi_pdu_rel8.resource_block_start = ra->msg3_first_rb;
hi_dci0_pdu->hi_pdu.hi_pdu_rel8.cyclic_shift_2_for_drms = 0;
hi_dci0_pdu->hi_pdu.hi_pdu_rel8.hi_value = 0;
hi_dci0_req_body->number_of_hi++;
hi_dci0_req_body->sfnsf = sfnsf_add_subframe(ra->Msg3_frame, ra->Msg3_subframe, 0);
hi_dci0_req_body->tl.tag = NFAPI_HI_DCI0_REQUEST_BODY_TAG;
hi_dci0_req->sfn_sf = sfnsf_add_subframe(frameP, subframeP, sf_ahead_dl);
hi_dci0_req->header.message_id = NFAPI_HI_DCI0_REQUEST;
if (NFAPI_MODE != NFAPI_MONOLITHIC) {
oai_nfapi_hi_dci0_req(hi_dci0_req);
hi_dci0_req_body->number_of_hi=0;
}
LOG_D(MAC, "MSG3: HI_DCI0 SFN/SF:%d number_of_dci:%d number_of_hi:%d\n", NFAPI_SFNSF2DEC(hi_dci0_req->sfn_sf), hi_dci0_req_body->number_of_dci, hi_dci0_req_body->number_of_hi);
// save UL scheduling information for preprocessor
for (j = 0; j < ra->msg3_nb_rb; j++)
cc->vrb_map_UL[ra->msg3_first_rb + j] = 1;
LOG_D(MAC,
"[eNB %d][PUSCH-RA %x] CC_id %d Frame %d subframeP %d Scheduled (PHICH) RA (mcs %d, first rb %d, nb_rb %d,round %d)\n",
module_idP, ra->rnti, CC_id, frameP, subframeP, 10, 1, 1,
ra->msg3_round - 1);
} // if (ra->msg3_round != 0) { // program HI too
} // non-BL/CE UE case
#endif
pusch_pdu->pdu_bit_map = PUSCH_PDU_BITMAP_PUSCH_DATA;
pusch_pdu->rnti = ra->rnti;
pusch_pdu->handle = 0;
pusch_pdu->bwp_size = NRRIV2BW(ubwp->bwp_Common->genericParameters.locationAndBandwidth,275);
pusch_pdu->bwp_start = NRRIV2PRBOFFSET(ubwp->bwp_Common->genericParameters.locationAndBandwidth,275);
pusch_pdu->subcarrier_spacing = ubwp->bwp_Common->genericParameters.subcarrierSpacing;
pusch_pdu->cyclic_prefix = 0;
pusch_pdu->mcs_index = 9;
pusch_pdu->mcs_table = 0;
pusch_pdu->target_code_rate = nr_get_code_rate_ul(pusch_pdu->mcs_index,pusch_pdu->mcs_table);
pusch_pdu->qam_mod_order = nr_get_Qm_ul(pusch_pdu->mcs_index,pusch_pdu->mcs_table);
pusch_pdu->transform_precoding = 0;
pusch_pdu->data_scrambling_id = 0;
pusch_pdu->nrOfLayers = 1;
pusch_pdu->ul_dmrs_symb_pos = 1;
pusch_pdu->dmrs_config_type = 0;
pusch_pdu->ul_dmrs_scrambling_id = 0; //If provided and the PUSCH is not a msg3 PUSCH, otherwise, L2 should set this to physical cell id. // TBR
pusch_pdu->scid = 0; //DMRS sequence initialization [TS38.211, sec 6.4.1.1.1]. Should match what is sent in DCI 0_1, otherwise set to 0.
pusch_pdu->resource_alloc = 1; //type 1
//pusch_pdu->rb_bitmap;// for ressource alloc type 0
pusch_pdu->rb_start = ra->msg3_first_rb;
pusch_pdu->rb_size = ra->msg3_nb_rb;
pusch_pdu->vrb_to_prb_mapping = 0;
pusch_pdu->frequency_hopping = 0;
//pusch_pdu->tx_direct_current_location;//The uplink Tx Direct Current location for the carrier. Only values in the value range of this field between 0 and 3299, which indicate the subcarrier index within the carrier corresponding 1o the numerology of the corresponding uplink BWP and value 3300, which indicates "Outside the carrier" and value 3301, which indicates "Undetermined position within the carrier" are used. [TS38.331, UplinkTxDirectCurrentBWP IE]
pusch_pdu->uplink_frequency_shift_7p5khz = 0;
//Resource Allocation in time domain
pusch_pdu->start_symbol_index = 2;
pusch_pdu->nr_of_symbols = 12;
//Optional Data only included if indicated in pduBitmap
pusch_pdu->pusch_data.rv_index = 0;
pusch_pdu->pusch_data.harq_process_id = 0;
pusch_pdu->pusch_data.new_data_indicator = 0;
pusch_pdu->pusch_data.tb_size = nr_compute_tbs(pusch_pdu->mcs_index,
pusch_pdu->target_code_rate,
pusch_pdu->rb_size,
pusch_pdu->nr_of_symbols,
6, //nb_re_dmrs - not sure where this is coming from - its not in the FAPI
0, //nb_rb_oh
pusch_pdu->nrOfLayers = 1);
pusch_pdu->pusch_data.num_cb = 0;
CCEIndex = allocate_nr_CCEs(mac, bwp_id, coreset_id, aggregation, search_space, UE_id, 0);
AssertFatal(CCEIndex >= 0, "CCEIndex is negative\n");
pdcch_pdu_rel15->dci_pdu.CceIndex[pdcch_pdu_rel15->numDlDci] = CCEIndex;
LOG_D(PHY, "CCEIndex %d\n", pdcch_pdu_rel15->dci_pdu.CceIndex[pdcch_pdu_rel15->numDlDci]);
LOG_D(MAC,"Configuring ULDCI/PDCCH in %d.%d\n", frameP,slotP);
nr_configure_pdcch(pdcch_pdu_rel15, 1, scc, bwp);
dci_pdu_rel15_t dci_pdu_rel15[MAX_DCI_CORESET];
config_uldci(ubwp, pusch_pdu, pdcch_pdu_rel15, &dci_pdu_rel15[0], dci_formats, rnti_types);
pdcch_pdu_rel15->dci_pdu.PayloadSizeBits[0] = nr_dci_size(dci_formats[0], rnti_types[0], pdcch_pdu_rel15->BWPSize);
fill_dci_pdu_rel15(pdcch_pdu_rel15, &dci_pdu_rel15[0], dci_formats, rnti_types);
}
\ No newline at end of file
openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_primitives.c
View file @ 156defcd
......@@ -1365,62 +1365,6 @@ int add_new_nr_ue(module_id_t mod_idP, rnti_t rntiP){
}
*/
/*
boolean_t nr_CCE_allocation_infeasible(int module_idP, int CC_id, int format_flag, int slot, int aggregation, int rnti){
gNB_MAC_INST *mac = RC.nrmac[module_idP];
nfapi_nr_dl_tti_request_body_t *dl_req = &mac->DL_req[CC_id].dl_config_request_body;
nfapi_nr_dl_tti_request_pdu_t *dl_config_pdu = &dl_req->dl_tti_pdu_list[dl_req->nPDUs];
nfapi_hi_dci0_request_body_t *HI_DCI0_req = &RC.mac[module_idP]->HI_DCI0_req[CC_id][slot].hi_dci0_request_body;
nfapi_hi_dci0_request_pdu_t *hi_dci0_pdu = &HI_DCI0_req->hi_dci0_pdu_list[HI_DCI0_req->number_of_dci + HI_DCI0_req->number_of_hi];
int ret;
boolean_t res = FALSE;
if (format_flag != 2) { // DL DCI
if (dl_req->number_pdu == MAX_NUM_DL_PDU) {
LOG_W(MAC,
"Subframe %d: FAPI DL structure is full, skip scheduling UE %d\n",
slot, rnti);
} else {
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.tl.tag = NFAPI_DL_CONFIG_REQUEST_DCI_DL_PDU_REL8_TAG;
dl_config_pdu->pdu_type = NFAPI_DL_CONFIG_DCI_DL_PDU_TYPE;
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.rnti = rnti;
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.rnti_type = (format_flag == 0) ? 2 : 1;
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.aggregation_level = aggregation;
dl_req->number_pdu++;
LOG_D(MAC, "Subframe %d: Checking CCE feasibility format %d : (%x,%d) (%x,%d,%d)\n",
slot, format_flag, rnti, aggregation,
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.rnti,
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.
aggregation_level,
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.rnti_type);
// ret = nr_allocate_CCEs(module_idP, CC_id, 0, slot, 0); // TBR
if (ret == -1) res = TRUE;
dl_req->number_pdu--;
}
} else { // ue-specific UL DCI
if (HI_DCI0_req->number_of_dci + HI_DCI0_req->number_of_hi == MAX_NUM_HI_DCI0_PDU) {
LOG_W(MAC, "Subframe %d: FAPI UL structure is full, skip scheduling UE %d\n", slot, rnti);
} else {
hi_dci0_pdu->pdu_type = NFAPI_HI_DCI0_DCI_PDU_TYPE;
hi_dci0_pdu->dci_pdu.dci_pdu_rel8.tl.tag = NFAPI_HI_DCI0_REQUEST_DCI_PDU_REL8_TAG;
hi_dci0_pdu->dci_pdu.dci_pdu_rel8.rnti = rnti;
hi_dci0_pdu->dci_pdu.dci_pdu_rel8.aggregation_level = aggregation;
HI_DCI0_req->number_of_dci++;
// ret = nr_allocate_CCEs(module_idP, CC_id, 0, slot, 0); // TBR
if (ret == -1) res = TRUE;
HI_DCI0_req->number_of_dci--;
}
}
return res;
}*/
/* // TBR fix this
void nr_get_Msg3alloc(NR_COMMON_channels_t *cc,
......@@ -1531,11 +1475,11 @@ void nr_get_Msg3alloc(NR_COMMON_channels_t *cc,
} // else TDD
}*/
uint16_t nr_mac_compute_RIV(uint16_t N_RB_DL, uint16_t RBstart, uint16_t Lcrbs){ // TBR this is outdated
uint16_t RIV;
if (Lcrbs <= (1 + (N_RB_DL >> 1))) RIV = (N_RB_DL * (Lcrbs - 1)) + RBstart;
else RIV = (N_RB_DL * (N_RB_DL + 1 - Lcrbs)) + (N_RB_DL - 1 - RBstart);
return RIV;
}
\ No newline at end of file
// uint16_t nr_mac_compute_RIV(uint16_t N_RB_DL, uint16_t RBstart, uint16_t Lcrbs){ // TBR
// uint16_t RIV;
//
// if (Lcrbs <= (1 + (N_RB_DL >> 1))) RIV = (N_RB_DL * (Lcrbs - 1)) + RBstart;
// else RIV = (N_RB_DL * (N_RB_DL + 1 - Lcrbs)) + (N_RB_DL - 1 - RBstart);
//
// return RIV;
// }
\ No newline at end of file
openair2/LAYER2/NR_MAC_gNB/mac_proto.h
View file @ 156defcd
......@@ -98,13 +98,6 @@ void nr_initiate_ra_proc(module_id_t module_idP, int CC_id, frame_t frameP, sub_
void nr_clear_ra_proc(module_id_t module_idP, int CC_id, frame_t frameP);
boolean_t nr_CCE_allocation_infeasible(int module_idP,
int CC_idP,
int common_flag,
int slot,
int aggregation,
int rnti);
int nr_allocate_CCEs(int module_idP, int CC_idP, frame_t frameP, sub_frame_t slotP, int test_only);
void nr_get_Msg3alloc(NR_COMMON_channels_t *cc,
......@@ -113,19 +106,14 @@ void nr_get_Msg3alloc(NR_COMMON_channels_t *cc,
frame_t *frame,
sub_frame_t *subframe);
/* \brief Function in gNB to fill RAR pdu when requested by PHY. This provides a single RAR SDU for the moment and returns the t-CRNTI.
@param Mod_id Instance ID of gNB
@param dlsch_buffer Pointer to DLSCH input buffer
/* \brief Function in gNB to fill RAR pdu when requested by PHY.
@param ra Instance of RA resources of gNB
@param dlsch_buffer Pointer to RAR input buffer
@param N_RB_UL Number of UL resource blocks
@returns t_CRNTI
*/
unsigned short nr_fill_rar(const module_id_t module_idP,
const int CC_id,
NR_RA_t *ra,
const frame_t frameP,
uint8_t * const dlsch_buffer,
const uint16_t N_RB_UL,
const uint8_t input_buffer_length);
void nr_fill_rar(NR_RA_t * ra,
uint8_t * dlsch_buffer,
uint16_t N_RB_UL);
uint16_t nr_mac_compute_RIV(uint16_t N_RB_DL, uint16_t RBstart, uint16_t Lcrbs);
......
openair2/LAYER2/NR_MAC_gNB/nr_mac_gNB.h
View file @ 156defcd
......@@ -90,15 +90,15 @@ typedef struct {
/// Subframe where preamble was received
uint8_t preamble_subframe;
/// Subframe where Msg2 is to be sent
uint8_t Msg2_subframe;
uint8_t Msg2_slot;
/// Frame where Msg2 is to be sent
frame_t Msg2_frame;
/// Subframe where Msg3 is to be sent
sub_frame_t Msg3_subframe;
sub_frame_t Msg3_slot;
/// Frame where Msg3 is to be sent
frame_t Msg3_frame;
/// Subframe where Msg4 is to be sent
sub_frame_t Msg4_subframe;
sub_frame_t Msg4_slot;
/// Frame where Msg4 is to be sent
frame_t Msg4_frame;
/// harq_pid used for Msg4 transmission
......
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