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Decoding MIB and SIB1 in NR UE

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In this commit, we changed the stub function of the NRUE
to handle the MIB and SIB1, which arrive in a single
DL_TTI_REQ. If we have not received the MIB, we first
call the scheduler, then we handle any received NFAPI
messages. The NFAPI message handler will then call
the nr_ue_dl_indication() again, which will process
first the MIB, then SIB1. It seems that we are not
properly sending the SIB1 response back to the gNB so
the NRUE eventually crashes. We are however, properly
decoding the MIB and SIB which is a step in the right
direction!
This commit is contained in:
Melissa Elkadi
2021-11-01 12:42:01 -07:00
parent 1dec9dd9f6
commit e635b90fda
3 changed files with 63 additions and 15 deletions
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executables/nr-ue.c
+14 -5
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@@ -434,15 +434,18 @@ static void *NRUE_phy_stub_standalone_pnf_task(void *arg)
module_id_t mod_id = 0;
NR_UE_MAC_INST_t *mac = get_mac_inst(mod_id);
if (mac->scc == NULL || mac->scc_SIB == NULL) //Melissa TODO this isnt correct
if (mac->mib == NULL)
{
if (get_softmodem_params()->sa && get_softmodem_params()->emulate_l2)
{
LOG_D(NR_MAC, "We haven't gotten MIB or SIB yet. Lets see if we received it\n");
LOG_D(NR_MAC, "We haven't gotten MIB. Lets see if we received it\n");
nr_ue_dl_indication(&mac->dl_info, &ul_time_alignment);
process_queued_nr_nfapi_msgs(mac, sfn_slot);
}
LOG_D(MAC, "mac->scc == NULL or mac->scc_SIB == NULL!\n");
}
if (mac->scc == NULL && mac->scc_SIB == NULL )
{
LOG_D(MAC, "[NSA] mac->scc == NULL and [SA] mac->scc_SIB == NULL!\n");
continue;
}
@@ -473,14 +476,20 @@ static void *NRUE_phy_stub_standalone_pnf_task(void *arg)
mac->dl_info.dci_ind = NULL;
mac->dl_info.rx_ind = NULL;
if (is_nr_DL_slot(mac->scc->tdd_UL_DL_ConfigurationCommon, ul_info.slot_rx))
if (is_nr_DL_slot(get_softmodem_params()->nsa ?
mac->scc->tdd_UL_DL_ConfigurationCommon :
mac->scc_SIB->tdd_UL_DL_ConfigurationCommon,
ul_info.slot_rx))
{
nr_ue_dl_indication(&mac->dl_info, &ul_time_alignment);
}
if (pthread_mutex_unlock(&mac->mutex_dl_info)) abort();
if (is_nr_UL_slot(mac->scc->tdd_UL_DL_ConfigurationCommon, ul_info.slot_tx, mac->frame_type))
if (is_nr_UL_slot(get_softmodem_params()->nsa ?
mac->scc->tdd_UL_DL_ConfigurationCommon :
mac->scc_SIB->tdd_UL_DL_ConfigurationCommon,
ul_info.slot_tx, mac->frame_type))
{
LOG_D(NR_MAC, "Slot %d. calling nr_ue_ul_ind() from %s\n", ul_info.slot_tx, __FUNCTION__);
nr_ue_ul_indication(&ul_info);