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Adding timing informtion to rx'd slot indictions

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Ensuring in the NRUE that the slot indications we
process are 500us apart.
This commit is contained in:
Melissa Elkadi
2021-10-12 10:27:15 -07:00
parent f37264e676
commit b17a5189b7
3 changed files with 40 additions and 11 deletions
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executables/nr-ue.c
+16 -4
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@@ -391,8 +391,9 @@ static void *NRUE_phy_stub_standalone_pnf_task(void *arg)
NR_UL_TIME_ALIGNMENT_t ul_time_alignment;
memset(&ul_time_alignment, 0, sizeof(ul_time_alignment));
int last_sfn_slot = -1;
uint16_t *sfn_slot_p;
int sfn_slot;
uint64_t last_time_stamp = 0;
sfn_slot_info_t *sfn_slot_info;
while (!oai_exit)
{
@@ -401,14 +402,14 @@ static void *NRUE_phy_stub_standalone_pnf_task(void *arg)
LOG_E(NR_MAC, "sem_wait() error\n");
abort();
}
sfn_slot_p = get_queue(&nr_sfn_slot_queue);
if (sfn_slot_p == NULL)
sfn_slot_info = get_queue(&nr_sfn_slot_queue);
if (sfn_slot_info == NULL)
{
LOG_D(MAC, "get_queue(&nr_sfn_slot_queue) == NULL!\n");
continue;
}
sfn_slot = *sfn_slot_p;
sfn_slot = sfn_slot_info->sfn_slot;
if (sfn_slot == last_sfn_slot)
{
LOG_D(NR_MAC, "repeated sfn_sf = %d.%d\n",
@@ -416,6 +417,17 @@ static void *NRUE_phy_stub_standalone_pnf_task(void *arg)
continue;
}
last_sfn_slot = sfn_slot;
LOG_D(NR_MAC, "The received sfn/slot [%d %d], last time stamp %ld, current time stamp %ld\n",
NFAPI_SFNSLOT2SFN(sfn_slot), NFAPI_SFNSLOT2SLOT(sfn_slot), last_time_stamp, sfn_slot_info->time_stamp);
uint64_t delta = sfn_slot_info->time_stamp - last_time_stamp;
if (delta < 500)
{
LOG_D(NR_MAC, "sfn/slot [%d %d] has been received too quickly! Delta = %ld. Will sleep for %ld us\n",
NFAPI_SFNSLOT2SFN(sfn_slot), NFAPI_SFNSLOT2SLOT(sfn_slot), delta, 500 - delta);
usleep(500 - delta);
}
last_time_stamp = sfn_slot_info->time_stamp;
module_id_t mod_id = 0;
NR_UE_MAC_INST_t *mac = get_mac_inst(mod_id);