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Fujitsu No.39 Correct pdcch symbol calculation

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Tomohiro
2017-05-19 09:24:49 +09:00
parent 430a8c4e11
commit 8160f8a23f
1 changed files with 14 additions and 3 deletions
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openair1/PHY/LTE_TRANSPORT/dci.c
Regular → Executable
+14 -3
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@@ -1979,6 +1979,9 @@ uint8_t get_num_pdcch_symbols(uint8_t num_dci,
uint16_t numCCE = 0;
uint8_t i;
uint8_t nCCEmin = 0;
uint16_t CCE_max_used_index = 0;
uint16_t firstCCE_max = dci_alloc[0].firstCCE;
uint8_t L = dci_alloc[0].L;
// check pdcch duration imposed by PHICH duration (Section 6.9 of 36-211)
if (frame_parms->Ncp==1) { // extended prefix
@@ -1995,16 +1998,24 @@ uint8_t get_num_pdcch_symbols(uint8_t num_dci,
for (i=0; i<num_dci; i++) {
// printf("dci %d => %d\n",i,dci_alloc[i].L);
numCCE += (1<<(dci_alloc[i].L));
if(firstCCE_max < dci_alloc[i].firstCCE) {
firstCCE_max = dci_alloc[i].firstCCE;
L = dci_alloc[i].L;
}
if(i == (num_dci - 1)) {
CCE_max_used_index = firstCCE_max + (1<<L) - 1;
}
}
//if ((9*numCCE) <= (frame_parms->N_RB_DL*2))
if (numCCE <= get_nCCE(1, frame_parms, get_mi(frame_parms, subframe)))
if (CCE_max_used_index <= get_nCCE(1, frame_parms, get_mi(frame_parms, subframe)))
return(cmax(1,nCCEmin));
//else if ((9*numCCE) <= (frame_parms->N_RB_DL*((frame_parms->nb_antenna_ports_eNB==4) ? 4 : 5)))
else if (numCCE <= get_nCCE(2, frame_parms, get_mi(frame_parms, subframe)))
else if (CCE_max_used_index <= get_nCCE(2, frame_parms, get_mi(frame_parms, subframe)))
return(cmax(2,nCCEmin));
//else if ((9*numCCE) <= (frame_parms->N_RB_DL*((frame_parms->nb_antenna_ports_eNB==4) ? 7 : 8)))
else if (numCCE <= get_nCCE(3, frame_parms, get_mi(frame_parms, subframe)))
else if (CCE_max_used_index <= get_nCCE(3, frame_parms, get_mi(frame_parms, subframe)))
return(cmax(3,nCCEmin));
else if (frame_parms->N_RB_DL<=10) {
if (frame_parms->Ncp == 0) { // normal CP