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Integrated ra procedure for both nsa and sa.

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This commit is contained in:
Deokseong "David" Kim
2021-11-17 21:13:36 +00:00
committed by Melissa
parent afeb5f4de2
commit efc797f35d
10 changed files with 50 additions and 212 deletions
Download Patch File Download Diff File Expand all files Collapse all files
cmake_targets/CMakeLists.txt
+2
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@@ -2891,6 +2891,7 @@ add_executable(ocp-enb
${OPENAIR_DIR}/common/utils/system.c
${OPENAIR_DIR}/common/utils/lte/ue_power.c
${OPENAIR_DIR}/common/utils/lte/prach_utils.c
${PHY_INTERFACE_DIR}/queue.c
${XFORMSINTERFACE_SOURCE}
${T_SOURCE}
${CONFIG_SOURCES}
@@ -3074,6 +3075,7 @@ add_executable(ocp-gnb
${OPENAIR_DIR}/common/utils/nr/nr_common.c
${OPENAIR_DIR}/common/utils/utils.c
${OPENAIR_DIR}/common/utils/system.c
${PHY_INTERFACE_DIR}/queue.c
${XFORMS_SOURCE_NR}
${T_SOURCE}
${CONFIG_SOURCES}
executables/main-fs6.c
+4 -1
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@@ -553,7 +553,10 @@ void fill_rx_indication_from_split(uint8_t *bufferZone, PHY_VARS_eNB *eNB,int UE
pdu->rx_indication_rel8.tl.tag = NFAPI_RX_INDICATION_REL8_TAG;
pdu->rx_indication_rel8.length = eNB->ulsch[UE_id]->harq_processes[harq_pid]->TBS>>3;
pdu->rx_indication_rel8.offset = 1; // DJP - I dont understand - but broken unless 1 ???? 0; // filled in at the end of the UL_INFO formation
pdu->data = eNB->ulsch[UE_id]->harq_processes[harq_pid]->decodedBytes;
AssertFatal(pdu->rx_indication_rel8.length <= NFAPI_RX_IND_DATA_MAX);
memcpy(pdu->rx_ind_data,
eNB->ulsch[UE_id]->harq_processes[harq_pid]->decodedBytes,
pdu->rx_indication_rel8.length);
// estimate timing advance for MAC
timing_advance_update = ul_propa[UE_id].ta;
executables/nr-ue.c
+7 -15
View File
@@ -354,21 +354,13 @@ static void check_nr_prach(NR_UE_MAC_INST_t *mac, nr_uplink_indication_t *ul_inf
AssertFatal(ul_config->number_pdus < sizeof(ul_config->ul_config_list) / sizeof(ul_config->ul_config_list[0]),
"Number of PDUS in ul_config = %d > ul_config_list num elements", ul_config->number_pdus);
fapi_nr_ul_config_prach_pdu *prach_pdu = &ul_config->ul_config_list[ul_config->number_pdus].prach_config_pdu;
uint8_t nr_prach = get_softmodem_params()->nsa ?
nr_ue_get_rach_nsa(prach_resources,
prach_pdu,
ul_info->module_id,
ul_info->cc_id,
ul_info->frame_tx,
ul_info->gNB_index,
ul_info->slot_tx) :
nr_ue_get_rach(prach_resources,
prach_pdu,
ul_info->module_id,
ul_info->cc_id,
ul_info->frame_tx,
ul_info->gNB_index,
ul_info->slot_tx);
uint8_t nr_prach = nr_ue_get_rach(prach_resources,
prach_pdu,
ul_info->module_id,
ul_info->cc_id,
ul_info->frame_tx,
ul_info->gNB_index,
ul_info->slot_tx);
if (nr_prach == 1)
{
L1_nsa_prach_procedures(ul_info->frame_tx, ul_info->slot_tx, prach_pdu);
executables/nr-uesoftmodem.c
-1
View File
@@ -155,7 +155,6 @@ char uecap_xer[1024];
*/
uint8_t abstraction_flag=0;
uint16_t ue_idx_standalone = 0xFFFF;
/*---------------------BMC: timespec helpers -----------------------------*/
openair2/LAYER2/NR_MAC_UE/mac_proto.h
-10
View File
@@ -415,16 +415,6 @@ uint8_t nr_ue_get_rach(NR_PRACH_RESOURCES_t *prach_resources,
uint8_t gNB_id,
int nr_slot_tx);
uint8_t nr_ue_get_rach_nsa(NR_PRACH_RESOURCES_t *prach_resources,
fapi_nr_ul_config_prach_pdu *prach_pdu,
module_id_t mod_id,
int CC_id,
frame_t frame,
uint8_t gNB_id,
int nr_slot_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
@param CC_id Component Carrier Index
openair2/LAYER2/NR_MAC_UE/nr_ra_procedures.c
+34 -182
View File
@@ -644,182 +644,6 @@ void nr_Msg3_transmitted(module_id_t mod_id, uint8_t CC_id, frame_t frameP, slot
}
/**
* Function: handles Random Access Preamble Initialization (5.1.1 TS 38.321)
* handles Random Access Response reception (5.1.4 TS 38.321)
* Note: In SA mode the Msg3 contains a CCCH SDU, therefore no C-RNTI MAC CE is transmitted.
*
* @prach_resources pointer to PRACH resources
* @prach_pdu pointer to FAPI UL PRACH PDU
* @mod_id module ID
* @CC_id CC ID
* @frame current UL TX frame
* @gNB_id gNB ID
* @nr_slot_tx current UL TX slot
*/
uint8_t nr_ue_get_rach_nsa(NR_PRACH_RESOURCES_t *prach_resources,
fapi_nr_ul_config_prach_pdu *prach_pdu,
module_id_t mod_id,
int CC_id,
frame_t frame,
uint8_t gNB_id,
int nr_slot_tx){
NR_UE_MAC_INST_t *mac = get_mac_inst(mod_id);
RA_config_t *ra = &mac->ra;
uint8_t mac_sdus[MAX_NR_ULSCH_PAYLOAD_BYTES];
uint8_t *payload;
uint16_t size_sdu = 0;
unsigned short post_padding;
NR_RACH_ConfigCommon_t *setup;
if (mac->scc) setup = mac->scc->uplinkConfigCommon->initialUplinkBWP->rach_ConfigCommon->choice.setup;
else setup = mac->scc_SIB->uplinkConfigCommon->initialUplinkBWP.rach_ConfigCommon->choice.setup;
AssertFatal(&setup->rach_ConfigGeneric != NULL, "In %s: FATAL! rach_ConfigGeneric is NULL...\n", __FUNCTION__);
NR_RACH_ConfigGeneric_t *rach_ConfigGeneric = &setup->rach_ConfigGeneric;
NR_RACH_ConfigDedicated_t *rach_ConfigDedicated = ra->rach_ConfigDedicated;
uint16_t sdu_lengths[NB_RB_MAX] = {0};
int offset = 0;
int TBS_bytes = 848;
int header_length_total=0;
int mac_ce_len;
// Delay init RA procedure to allow the convergence of the IIR filter on PRACH noise measurements at gNB side
if (!prach_resources->init_msg1) {
if ((mac->common_configuration_complete > 0 || get_softmodem_params()->do_ra || get_softmodem_params()->nsa) &&
((MAX_FRAME_NUMBER + frame - prach_resources->sync_frame) % MAX_FRAME_NUMBER) > 150) {
prach_resources->init_msg1 = 1;
} else {
LOG_D(NR_MAC,"PRACH Condition not met: frame %d, prach_resources->sync_frame %d\n",frame,prach_resources->sync_frame);
return 0;
}
}
LOG_D(NR_MAC,"frame %d prach_resources->init_msg1 %d, ra->ra_state %d, ra->RA_active %d\n",
frame, prach_resources->init_msg1, ra->ra_state, ra->RA_active);
if (prach_resources->init_msg1 && ra->ra_state != RA_SUCCEEDED) {
if (ra->RA_active == 0) {
/* RA not active - checking if RRC is ready to initiate the RA procedure */
LOG_D(NR_MAC, "RA not active. Checking for data to transmit from upper layers...\n");
int TBS_max = 848; //8 + sizeof(NR_MAC_SUBHEADER_SHORT) + sizeof(NR_MAC_SUBHEADER_SHORT);
payload = (uint8_t*) mac->CCCH_pdu.payload;
mac_ce_len = 0;
post_padding = 1;
// initialisation by RRC
// TODO: To be removed after RA procedures fully implemented
if(get_softmodem_params()->do_ra) {
nr_rrc_ue_generate_RRCSetupRequest(mod_id,gNB_id);
size_sdu = (uint16_t) nr_mac_rrc_data_req_ue(mod_id, CC_id, gNB_id, frame, CCCH, mac_sdus);
// CCCH PDU
sdu_lengths[0] = size_sdu;
LOG_D(NR_MAC,"[UE %d] Frame %d: Requested RRCConnectionRequest, got %d bytes\n", mod_id, frame, size_sdu);
} else {
// fill ulsch_buffer with random data
for (int i = 0; i < TBS_bytes; i++){
mac_sdus[i] = (unsigned char) (lrand48()&0xff);
}
//Sending SDUs with size 1
//Initialize elements of sdu_lengths
sdu_lengths[0] = TBS_bytes - 3 - post_padding - mac_ce_len;
header_length_total += 2 + (sdu_lengths[0] >= 128);
size_sdu += sdu_lengths[0];
}
if (size_sdu > 0) {
// UE Contention Resolution Identity
// Store the first 48 bits belonging to the uplink CCCH SDU within Msg3 to determine whether or not the
// Random Access Procedure has been successful after reception of Msg4
memcpy(ra->cont_res_id, mac_sdus, sizeof(uint8_t) * 6);
LOG_D(NR_MAC, "[UE %d][%d.%d]: starting initialisation Random Access Procedure...\n", mod_id, frame, nr_slot_tx);
ra->Msg3_size = size_sdu + sizeof(NR_MAC_SUBHEADER_SHORT) + sizeof(NR_MAC_SUBHEADER_SHORT);
init_RA(mod_id, prach_resources, setup, rach_ConfigGeneric, rach_ConfigDedicated);
// prach_resources->Msg3 = payload;
nr_get_RA_window(mac);
// Fill in preamble and PRACH resources
if (ra->generate_nr_prach == GENERATE_PREAMBLE) {
nr_get_prach_resources(mod_id, CC_id, gNB_id, prach_resources, prach_pdu, rach_ConfigDedicated);
}
// Padding: fill remainder with 0
if (post_padding > 0){
for (int j = 0; j < (TBS_max - offset); j++)
payload[offset + j] = 0;
}
}
} else if (ra->RA_window_cnt != -1) { // RACH is active
LOG_D(MAC, "In %s [%d.%d] RA is active: RA window count %d, RA backoff count %d\n", __FUNCTION__, frame, nr_slot_tx, ra->RA_window_cnt, ra->RA_backoff_cnt);
if (ra->RA_BI_found){
prach_resources->RA_PREAMBLE_BACKOFF = prach_resources->RA_SCALING_FACTOR_BI * ra->RA_backoff_indicator;
} else {
prach_resources->RA_PREAMBLE_BACKOFF = 0;
}
if (ra->RA_window_cnt >= 0 && ra->RA_RAPID_found == 1) {
if(ra->cfra) {
// Reset RA_active flag: it disables Msg3 retransmission (8.3 of TS 38.213)
nr_ra_succeeded(mod_id, frame, nr_slot_tx);
} else {
ra->generate_nr_prach = GENERATE_IDLE;
}
} else if (ra->RA_window_cnt == 0 && !ra->RA_RAPID_found) {
LOG_I(MAC, "[UE %d][%d:%d] RAR reception failed \n", mod_id, frame, nr_slot_tx);
nr_ra_failed(mod_id, CC_id, prach_resources, frame, nr_slot_tx);
} else if (ra->RA_window_cnt > 0) {
LOG_I(MAC, "[UE %d][%d.%d]: RAR not received yet (RA window count %d) \n", mod_id, frame, nr_slot_tx, ra->RA_window_cnt);
// Fill in preamble and PRACH resources
ra->RA_window_cnt--;
if (ra->generate_nr_prach == GENERATE_PREAMBLE) {
nr_get_prach_resources(mod_id, CC_id, gNB_id, prach_resources, prach_pdu, rach_ConfigDedicated);
}
} else if (ra->RA_backoff_cnt > 0) {
LOG_D(MAC, "[UE %d][%d.%d]: RAR not received yet (RA backoff count %d) \n", mod_id, frame, nr_slot_tx, ra->RA_backoff_cnt);
ra->RA_backoff_cnt--;
if ((ra->RA_backoff_cnt > 0 && ra->generate_nr_prach == GENERATE_PREAMBLE) || ra->RA_backoff_cnt == 0) {
nr_get_prach_resources(mod_id, CC_id, gNB_id, prach_resources, prach_pdu, rach_ConfigDedicated);
}
}
}
}
if (ra->RA_contention_resolution_timer_active){
nr_ue_contention_resolution(mod_id, CC_id, frame, nr_slot_tx, prach_resources);
}
LOG_D(MAC,"ra->generate_nr_prach %d ra->ra_state %d (GENERATE_IDLE %d)\n",ra->generate_nr_prach,ra->ra_state,GENERATE_IDLE);
if(ra->generate_nr_prach != GENERATE_IDLE) {
return ra->generate_nr_prach;
} else {
return ra->ra_state;
}
}
/**
* Function: handles Random Access Preamble Initialization (5.1.1 TS 38.321)
* handles Random Access Response reception (5.1.4 TS 38.321)
@@ -852,7 +676,8 @@ uint8_t nr_ue_get_rach(NR_PRACH_RESOURCES_t *prach_resources,
// Delay init RA procedure to allow the convergence of the IIR filter on PRACH noise measurements at gNB side
if (!prach_resources->init_msg1) {
if ( (mac->common_configuration_complete>0 || get_softmodem_params()->do_ra==1) && ((MAX_FRAME_NUMBER+frame-prach_resources->sync_frame)%MAX_FRAME_NUMBER)>150 ){
if ((mac->common_configuration_complete > 0 || get_softmodem_params()->do_ra || get_softmodem_params()->nsa) &&
((MAX_FRAME_NUMBER + frame - prach_resources->sync_frame) % MAX_FRAME_NUMBER) > 150) {
prach_resources->init_msg1 = 1;
} else {
LOG_D(NR_MAC,"PRACH Condition not met: frame %d, prach_resources->sync_frame %d\n",frame,prach_resources->sync_frame);
@@ -916,6 +741,30 @@ uint8_t nr_ue_get_rach(NR_PRACH_RESOURCES_t *prach_resources,
pdu -= sh_size;
}
} else if (get_softmodem_params()->nsa) {
uint8_t mac_sdus[MAX_NR_ULSCH_PAYLOAD_BYTES];
uint16_t sdu_lengths[NB_RB_MAX] = {0};
int TBS_bytes = 848;
int mac_ce_len = 0;
int header_length_total=0;
unsigned short post_padding = 1;
// fill ulsch_buffer with random data
for (int i = 0; i < TBS_bytes; i++){
mac_sdus[i] = (unsigned char) (lrand48()&0xff);
}
//Sending SDUs with size 1
//Initialize elements of sdu_lengths
sdu_lengths[0] = TBS_bytes - 3 - post_padding - mac_ce_len;
header_length_total += 2 + (sdu_lengths[0] >= 128);
size_sdu += sdu_lengths[0];
if (size_sdu > 0) {
memcpy(ra->cont_res_id, mac_sdus, sizeof(uint8_t) * 6);
ra->Msg3_size = size_sdu + sizeof(NR_MAC_SUBHEADER_SHORT) + sizeof(NR_MAC_SUBHEADER_SHORT);
}
} else {
size_sdu = nr_write_ce_ulsch_pdu(pdu, mac, 0, &(mac->crnti), NULL, NULL, NULL);
@@ -924,19 +773,20 @@ uint8_t nr_ue_get_rach(NR_PRACH_RESOURCES_t *prach_resources,
}
if (size_sdu > 0 && ra->generate_nr_prach == GENERATE_PREAMBLE) {
if (size_sdu > 0 && (ra->generate_nr_prach == GENERATE_PREAMBLE || get_softmodem_params()->nsa)) {
LOG_D(NR_MAC, "In %s: [UE %d][%d.%d]: starting initialisation Random Access Procedure...\n", __FUNCTION__, mod_id, frame, nr_slot_tx);
AssertFatal(TBS_max > ra->Msg3_size, "In %s: allocated resources are not enough for Msg3!\n", __FUNCTION__);
// Init RA procedure
init_RA(mod_id, prach_resources, setup, rach_ConfigGeneric, rach_ConfigDedicated);
nr_get_RA_window(mac);
// Fill in preamble and PRACH resources
nr_get_prach_resources(mod_id, CC_id, gNB_id, prach_resources, prach_pdu, rach_ConfigDedicated);
if (ra->generate_nr_prach == GENERATE_PREAMBLE)
nr_get_prach_resources(mod_id, CC_id, gNB_id, prach_resources, prach_pdu, rach_ConfigDedicated);
// Padding: fill remainder with 0
if (TBS_max - ra->Msg3_size > 0) {
AssertFatal(TBS_max > ra->Msg3_size, "In %s: allocated resources are not enough for Msg3!\n", __FUNCTION__);
LOG_D(NR_MAC, "In %s: remaining %d bytes, filling with padding\n", __FUNCTION__, TBS_max - ra->Msg3_size);
((NR_MAC_SUBHEADER_FIXED *) pdu)->R = 0;
((NR_MAC_SUBHEADER_FIXED *) pdu)->LCID = UL_SCH_LCID_PADDING;
@@ -955,8 +805,10 @@ uint8_t nr_ue_get_rach(NR_PRACH_RESOURCES_t *prach_resources,
// Msg3 was initialized with TBS_max bytes because the RA_Msg3_size will only be known after
// receiving Msg2 (which contains the Msg3 resource reserve).
// Msg3 will be transmitted with RA_Msg3_size bytes, removing unnecessary 0s.
mac->ulsch_pdu.Pdu_size = TBS_max;
memcpy(mac->ulsch_pdu.payload, payload, TBS_max);
if (!get_softmodem_params()->nsa) {
mac->ulsch_pdu.Pdu_size = TBS_max;
memcpy(mac->ulsch_pdu.payload, payload, TBS_max);
}
} else {
return 0;
openair2/LAYER2/PDCP_v10.1.0/pdcp.c
+1 -1
View File
@@ -2383,7 +2383,7 @@ uint64_t pdcp_module_init( uint64_t pdcp_optmask, int id) {
}else{
if(pdcp_optmask & ENB_NAS_USE_TUN_W_MBMS_BIT){
LOG_W(PDCP, "ENB pdcp will use tun interface for MBMS\n");
netlink_init_mbms_tun("enm", 1);
netlink_init_mbms_tun("enm", 0);
nas_config_mbms_s1(1, 2, 1, "enm");
}else
LOG_E(PDCP, "ENB pdcp will not use tun interface\n");
openair3/NAS/UE/nas_ue_task.c
+2
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@@ -42,6 +42,8 @@
extern unsigned char NB_eNB_INST;
extern uint16_t NB_UE_INST;
uint16_t ue_idx_standalone = 0xFFFF;
char *make_port_str_from_ueid(const char *base_port_str, int ueid);
static int nas_ue_process_events(nas_user_container_t *users, struct epoll_event *events, int nb_events)
targets/RT/USER/lte-softmodem.c
-1
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@@ -181,7 +181,6 @@ eth_params_t *eth_params;
double cpuf;
int oaisim_flag=0;
uint16_t ue_idx_standalone = 0xFFFF;
uint8_t proto_agent_flag = 0;
targets/RT/USER/lte-uesoftmodem.c
-1
View File
@@ -276,7 +276,6 @@ void exit_function(const char *file, const char *function, const int line, const
}
extern int16_t dlsch_demod_shift;
uint16_t ue_idx_standalone = 0xFFFF;
uint16_t node_number;
static void get_options(void) {
int CC_id=0;