uint16_ttiming_advance;//Timing advance 𝑇𝐴 measured for the UE [TS 38.213, Section 4.2] NTA_new = NTA_old + (TA − 31) ⋅ 16 ⋅ 64⁄2μ Value: 0 → 63 0xffff should be set if this field is invalid
gNB->prach_pdu_indication_list[0].symbol_index=prach_pdu->prach_start_symbol;// FIXME to be changed for multi-ssb (this is only the start symbol of first occasion)