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Fixes to RA procedure

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This commit is contained in:
cig
2020-05-12 17:19:10 +02:00
parent 58dbf7d4b9
commit 12b585a190
7 changed files with 53 additions and 70 deletions
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openair1/PHY/defs_nr_common.h
-2
View File
@@ -221,8 +221,6 @@ typedef struct {
uint16_t ra_RNTI;
/// Pointer to Msg3 payload for UL-grant
uint8_t *Msg3;
/// Flag for the Msg1 generation: it is enabled every time it is nr prach slot
uint8_t generate_nr_prach;
/// Frame of last completed synch
uint8_t sync_frame;
/// Flag to indicate that prach is ready to start: it is enabled with an initial delay after the sync
openair1/SCHED_NR_UE/phy_procedures_nr_ue.c
+16 -17
View File
@@ -2269,9 +2269,6 @@ void phy_procedures_nrUE_TX(PHY_VARS_NR_UE *ue,
if ((ue->UE_mode[gNB_id] == PRACH) && (ue->prach_vars[gNB_id]->prach_Config_enabled == 1)) {
nr_ue_prach_procedures(ue, proc, gNB_id, mode);
}
else {
ue->prach_resources[gNB_id]->generate_nr_prach = 0;
}
}
LOG_I(PHY,"****** end TX-Chain for AbsSubframe %d.%d ******\n", frame_tx, slot_tx);
@@ -4497,6 +4494,7 @@ void nr_ue_prach_procedures(PHY_VARS_NR_UE *ue, UE_nr_rxtx_proc_t *proc, uint8_t
uint8_t mod_id = ue->Mod_id;
UE_MODE_t UE_mode = get_nrUE_mode(mod_id, ue->CC_id, gNB_id);
NR_PRACH_RESOURCES_t * prach_resources = ue->prach_resources[gNB_id];
uint8_t nr_prach;
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_PROCEDURES_UE_TX_PRACH, VCD_FUNCTION_IN);
@@ -4505,7 +4503,7 @@ void nr_ue_prach_procedures(PHY_VARS_NR_UE *ue, UE_nr_rxtx_proc_t *proc, uint8_t
prach_resources->ra_TDD_map_index = 0;
prach_resources->ra_PREAMBLE_RECEIVED_TARGET_POWER = 10;
prach_resources->ra_RNTI = 0x1234;
prach_resources->generate_nr_prach = 1;
nr_prach = 1;
} else {
// ask L2 for RACH transport
if ((runmode != rx_calib_ue) && (runmode != rx_calib_ue_med) && (runmode != rx_calib_ue_byp) && (runmode != no_L2_connect) ) {
@@ -4516,16 +4514,17 @@ void nr_ue_prach_procedures(PHY_VARS_NR_UE *ue, UE_nr_rxtx_proc_t *proc, uint8_t
ue->ulsch_Msg3_active[i] = 0;
}
}
nr_ue_get_rach(ue->prach_resources[gNB_id], mod_id, ue->CC_id, UE_mode, frame_tx, gNB_id, nr_tti_tx);
nr_prach = nr_ue_get_rach(ue->prach_resources[gNB_id], mod_id, ue->CC_id, UE_mode, frame_tx, gNB_id, nr_tti_tx);
}
}
if (!prach_resources->init_msg1 && (frame_tx > ue->prach_resources[gNB_id]->sync_frame + 150))
prach_resources->init_msg1 = 1;
if (ue->prach_resources[gNB_id] != NULL && prach_resources->generate_nr_prach == 1 && prach_resources->init_msg1) {
if (!prach_resources->init_msg1 && (frame_tx > ue->prach_resources[gNB_id]->sync_frame + 150)){
ue->prach_cnt = 0;
prach_resources->init_msg1 = 1;
}
if (ue->prach_resources[gNB_id] != NULL && nr_prach == 1 && prach_resources->init_msg1) {
pathloss = get_nr_PL(mod_id, ue->CC_id, gNB_id);
LOG_D(PHY,"runmode %d\n",runmode);
@@ -4585,18 +4584,18 @@ void nr_ue_prach_procedures(PHY_VARS_NR_UE *ue, UE_nr_rxtx_proc_t *proc, uint8_t
prach_resources->ra_PreambleIndex,
ue->tx_power_dBm[nr_tti_tx],
pathloss);
LOG_D(PHY,"[UE %d] frame %d nr_tti_tx %d : prach_cnt %d\n", ue->Mod_id, frame_tx, nr_tti_tx, ue->prach_cnt);
ue->prach_cnt++;
if (ue->prach_cnt == 3)
ue->prach_cnt = 0;
}
// if we're calibrating the PRACH kill the pointer to its resources so that the RA protocol doesn't continue
if (runmode == calib_prach_tx)
ue->prach_resources[gNB_id] = NULL;
LOG_D(PHY,"[UE %d] frame %d nr_tti_tx %d : generate_nr_prach %d, prach_cnt %d\n", ue->Mod_id, frame_tx, nr_tti_tx, ue->prach_resources[gNB_id]->generate_nr_prach, ue->prach_cnt);
ue->prach_cnt++;
if (ue->prach_cnt == 3)
prach_resources->generate_nr_prach = 0;
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_PROCEDURES_UE_TX_PRACH, VCD_FUNCTION_OUT);
}
openair2/LAYER2/NR_MAC_UE/mac_defs.h
+2
View File
@@ -239,6 +239,8 @@ typedef struct {
uint8_t RA_RAPID_found;
/// Flag to monitor if BI was received in RAR
uint8_t RA_BI_found;
/// Flag for the Msg1 generation: enabled at every occurrence of nr prach slot
uint8_t generate_nr_prach;
//// FAPI-like interface message
fapi_nr_tx_request_t tx_request;
openair2/LAYER2/NR_MAC_UE/mac_proto.h
+8 -8
View File
@@ -235,14 +235,14 @@ andom-access to transmit a BSR along with the C-RNTI control element (see 5.1.4
@param frame
@param gNB_id gNB index
@param nr_tti_tx slot for PRACH transmission
@returns void */
void nr_ue_get_rach(NR_PRACH_RESOURCES_t *prach_resources,
module_id_t mod_id,
int CC_id,
UE_MODE_t UE_mode,
frame_t frame,
uint8_t gNB_id,
int nr_tti_tx);
@returns indication to generate PRACH to phy */
uint8_t nr_ue_get_rach(NR_PRACH_RESOURCES_t *prach_resources,
module_id_t mod_id,
int CC_id,
UE_MODE_t UE_mode,
frame_t frame,
uint8_t gNB_id,
int nr_tti_tx);
/* \brief Function implementing the routine for the selection of Random Access resources (5.1.2 TS 38.321).
@param module_idP Index of UE instance
openair2/LAYER2/NR_MAC_UE/nr_ra_procedures.c
+22 -42
View File
@@ -331,19 +331,17 @@ void nr_Msg3_transmitted(module_id_t mod_id, uint8_t CC_id, frame_t frameP, uint
// - retrieve TBS
// - add mac_rrc_nr_data_req_ue, etc ...
// - add the backoff condition here if we have it from a previous RA reponse which failed (i.e. backoff indicator)
void nr_ue_get_rach(NR_PRACH_RESOURCES_t *prach_resources,
module_id_t mod_id,
int CC_id,
UE_MODE_t UE_mode,
frame_t frame,
uint8_t gNB_id,
int nr_tti_tx){
uint8_t nr_ue_get_rach(NR_PRACH_RESOURCES_t *prach_resources,
module_id_t mod_id,
int CC_id,
UE_MODE_t UE_mode,
frame_t frame,
uint8_t gNB_id,
int nr_tti_tx){
NR_UE_MAC_INST_t *mac = get_mac_inst(mod_id);
uint8_t mac_sdus[MAX_NR_ULSCH_PAYLOAD_BYTES];
uint8_t lcid = UL_SCH_LCID_CCCH_MSG3, *payload, ra_ResponseWindow;
uint8_t config_index, mu;
int is_nr_prach_slot;
uint16_t size_sdu = 0;
unsigned short post_padding;
fapi_nr_config_request_t *cfg = &mac->phy_config.config_req;
@@ -365,27 +363,6 @@ void nr_ue_get_rach(NR_PRACH_RESOURCES_t *prach_resources,
LOG_D(MAC, "nr_ue_get_rach, RA_active value: %d", mac->RA_active);
config_index = rach_ConfigGeneric->prach_ConfigurationIndex;
if (setup->msg1_SubcarrierSpacing)
mu = *setup->msg1_SubcarrierSpacing;
else
mu = frequencyInfoDL->scs_SpecificCarrierList.list.array[0]->subcarrierSpacing;
is_nr_prach_slot = get_nr_prach_info_from_index(config_index,
(int)frame,
(int)nr_tti_tx,
frequencyInfoDL->absoluteFrequencyPointA,
mu,
cfg->cell_config.frame_duplex_type,
NULL,
NULL,
NULL,
NULL);
if (is_nr_prach_slot)
prach_resources->generate_nr_prach = 1;
else
prach_resources->generate_nr_prach = 0;
AssertFatal(setup != NULL, "[UE %d] FATAL nr_rach_ConfigCommon is NULL !!!\n", mod_id);
if (mac->RA_active == 0) {
@@ -393,6 +370,7 @@ void nr_ue_get_rach(NR_PRACH_RESOURCES_t *prach_resources,
LOG_I(MAC, "RA not active. Starting RA preamble initialization.\n");
mac->ra_state = RA_UE_IDLE;
mac->RA_RAPID_found = 0;
/* Set RA_PREAMBLE_POWER_RAMPING_STEP */
@@ -446,10 +424,10 @@ void nr_ue_get_rach(NR_PRACH_RESOURCES_t *prach_resources,
size_sdu += sdu_lengths[0];
}
mac->RA_tx_frame = frame;
mac->RA_tx_subframe = nr_tti_tx;
mac->RA_backoff_frame = frame;
mac->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) {
@@ -493,7 +471,7 @@ void nr_ue_get_rach(NR_PRACH_RESOURCES_t *prach_resources,
}
// Fill in preamble and PRACH resources
if (is_nr_prach_slot)
if (mac->generate_nr_prach)
nr_get_prach_resources(mod_id, CC_id, gNB_id, nr_tti_tx, 1, prach_resources, rach_ConfigDedicated);
offset = nr_generate_ulsch_pdu((uint8_t *) mac_sdus, // sdus buffer
@@ -528,18 +506,20 @@ void nr_ue_get_rach(NR_PRACH_RESOURCES_t *prach_resources,
// - handle backoff and raResponseWindow params
// - disabled contention resolution as OAI NSA is contention-free based
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, mac->RA_window_cnt, mac->RA_tx_frame, mac->RA_tx_subframe);
// 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, mac->RA_window_cnt, mac->RA_tx_frame, mac->RA_tx_subframe);
if (mac->RA_BI_found){
prach_resources->RA_PREAMBLE_BACKOFF = prach_resources->RA_SCALING_FACTOR_BI * mac->RA_backoff_indicator;
prach_resources->RA_PREAMBLE_BACKOFF = prach_resources->RA_SCALING_FACTOR_BI * mac->RA_backoff_indicator;
} else {
prach_resources->RA_PREAMBLE_BACKOFF = 0;
}
if (mac->RA_window_cnt > 0 && mac->RA_RAPID_found == 1) {
// mac->ra_state = WAIT_CONTENTION_RESOLUTION;
LOG_I(MAC, "[MAC][UE %d][RAPROC] Frame %d: subframe %d: RAR successfully received \n", mod_id, frame, nr_tti_tx);
} else {
mac->ra_state = RA_UE_IDLE;
LOG_I(MAC, "[MAC][UE %d][RAPROC] Frame %d: subframe %d: RAR reception not successful, (RA window count %d) \n",
mod_id,
frame,
@@ -608,11 +588,11 @@ void nr_ue_get_rach(NR_PRACH_RESOURCES_t *prach_resources,
// 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;
// mac->RA_tx_frame = frame;
// mac->RA_tx_subframe = nr_tti_tx;
// Fill in preamble and PRACH resources
if (is_nr_prach_slot)
if (mac->generate_nr_prach)
nr_get_prach_resources(mod_id, CC_id, gNB_id, nr_tti_tx, 0, prach_resources, rach_ConfigDedicated);
}
@@ -621,5 +601,5 @@ void nr_ue_get_rach(NR_PRACH_RESOURCES_t *prach_resources,
LOG_D(MAC, "[UE %d] FATAL: Should not have checked for RACH in PUSCH yet ...", mod_id);
AssertFatal(1 == 0, "");
}
return;
return mac->generate_nr_prach;
}
openair2/LAYER2/NR_MAC_UE/nr_ue_procedures.c
+4
View File
@@ -813,6 +813,8 @@ void nr_ue_prach_scheduler(module_id_t module_idP, frame_t frameP, sub_frame_t s
&N_dur);
if (is_nr_prach_slot) {
mac->generate_nr_prach = 1;
fdm = rach_ConfigGeneric->msg1_FDM;
switch (fdm){
@@ -911,6 +913,8 @@ void nr_ue_prach_scheduler(module_id_t module_idP, frame_t frameP, sub_frame_t s
}
}
}
} else {
mac->generate_nr_prach = 0;
}
mac->scheduled_response.ul_config = ul_config;
}
openair2/NR_UE_PHY_INTERFACE/NR_IF_Module.c
+1 -1
View File
@@ -115,7 +115,7 @@ int nr_ue_ul_indication(nr_uplink_indication_t *ul_info){
ret = nr_ue_scheduler(NULL, ul_info);
if (is_nr_UL_slot(mac->scc, ul_info->slot_tx) && get_softmodem_params()->do_ra)
if (is_nr_UL_slot(mac->scc, ul_info->slot_tx) && mac->ra_state <= WAIT_RAR && get_softmodem_params()->do_ra)
nr_ue_prach_scheduler(module_id, ul_info->frame_tx, ul_info->slot_tx);
switch(ret){