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fix for number of slots in half frame for different numerologies

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This commit is contained in:
Francesco Mani
2019-11-27 09:11:51 +01:00
parent 433e3edd21
commit fe0c9ba075
1 changed files with 7 additions and 4 deletions
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openair1/PHY/INIT/nr_parms.c
+7 -4
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@@ -83,10 +83,12 @@ int nr_is_ssb_slot(nfapi_nr_config_request_t *cfg, int slot, int frame)
{
uint8_t n_hf;
uint16_t p;
uint16_t p,mu,hf_slots;
uint64_t ssb_map;
int rel_slot;
mu = cfg->subframe_config.numerology_index_mu.value;
ssb_map = cfg->sch_config.ssb_scg_position_in_burst.value;
p = cfg->sch_config.ssb_periodicity.value;
n_hf = cfg->sch_config.half_frame_index.value;
@@ -95,16 +97,17 @@ int nr_is_ssb_slot(nfapi_nr_config_request_t *cfg, int slot, int frame)
if ( (p>10) && (frame%(p/10)) )
return 0;
else {
hf_slots = (10<<mu)>>1; // number of slots per half frame
// if SSB periodicity is 5ms, they are transmitted in both half frames
if ( p == 5) {
if (slot<10) //the value 10 needs to be changed for other numerologies (using slots_per_frame) in this function
if (slot<hf_slots)
n_hf=0;
else
n_hf=1;
}
// to set a effective slot number between 0 to 9 in the half frame where the SSB is supposed to be
rel_slot = (n_hf)? (slot-10) : slot;
// to set a effective slot number between 0 to hf_slots-1 in the half frame where the SSB is supposed to be
rel_slot = (n_hf)? (slot-hf_slots) : slot;
// there are two potential SSB per slot
return ( ((ssb_map >> rel_slot*2) & 0x01) || ((ssb_map >> (1+rel_slot*2)) & 0x01) );