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Commit bb3bee9f authored by Cedric Roux's avatar Cedric Roux
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fix dftlen computation

parent fd81b1ec
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Showing with 14 additions and 6 deletions
openair1/PHY/NR_TRANSPORT/nr_prach.c
View file @ bb3bee9f
...@@ -278,8 +278,10 @@ void rx_nr_prach_ru(RU_t *ru, ...@@ -278,8 +278,10 @@ void rx_nr_prach_ru(RU_t *ru,
//50 MHz @ 61.44 Ms/s //50 MHz @ 61.44 Ms/s
prach2 = prach[aa] + (Ncp<<2); prach2 = prach[aa] + (Ncp<<2);
if (prach_sequence_length == 0) { if (prach_sequence_length == 0) {
if (prach_fmt == 0 || prach_fmt == 1 || prach_fmt == 2) if (prach_fmt == 0 || prach_fmt == 1 || prach_fmt == 2) {
dftlen=49152;
dft49152(prach2,rxsigF[aa],1); dft49152(prach2,rxsigF[aa],1);
}
if (prach_fmt == 1 || prach_fmt == 2) { if (prach_fmt == 1 || prach_fmt == 2) {
dft49152(prach2+98304,rxsigF[aa]+98304,1); dft49152(prach2+98304,rxsigF[aa]+98304,1);
reps++; reps++;
...@@ -290,11 +292,13 @@ void rx_nr_prach_ru(RU_t *ru, ...@@ -290,11 +292,13 @@ void rx_nr_prach_ru(RU_t *ru,
reps+=2; reps+=2;
} }
if (prach_fmt == 3) { if (prach_fmt == 3) {
dftlen=12288;
for (int i=0;i<4;i++) dft12288(prach2+(i*12288*2),rxsigF[aa]+(i*12288*2),1); for (int i=0;i<4;i++) dft12288(prach2+(i*12288*2),rxsigF[aa]+(i*12288*2),1);
reps=4; reps=4;
} }
} }
else { else {
dftlen=2048;
dft2048(prach2,rxsigF[aa],1); dft2048(prach2,rxsigF[aa],1);
if (prach_fmt != 7) { // !=C0 if (prach_fmt != 7) { // !=C0
dft2048(prach2+4096,rxsigF[aa]+4096,1); dft2048(prach2+4096,rxsigF[aa]+4096,1);
...@@ -321,6 +325,7 @@ void rx_nr_prach_ru(RU_t *ru, ...@@ -321,6 +325,7 @@ void rx_nr_prach_ru(RU_t *ru,
prach2 = prach[aa] + (3*Ncp); prach2 = prach[aa] + (3*Ncp);
AssertFatal(fp->N_RB_UL <= 107,"cannot do 108..136 PRBs with 3/4 sampling\n"); AssertFatal(fp->N_RB_UL <= 107,"cannot do 108..136 PRBs with 3/4 sampling\n");
if (prach_fmt == 0 || prach_fmt == 1 || prach_fmt == 2) { if (prach_fmt == 0 || prach_fmt == 1 || prach_fmt == 2) {
dftlen=36864;
dft36864(prach2,rxsigF[aa],1); dft36864(prach2,rxsigF[aa],1);
reps++; reps++;
} }
...@@ -334,10 +339,12 @@ void rx_nr_prach_ru(RU_t *ru, ...@@ -334,10 +339,12 @@ void rx_nr_prach_ru(RU_t *ru,
reps+=2; reps+=2;
} }
if (prach_fmt == 3) { if (prach_fmt == 3) {
dftlen=9216;
for (int i=0;i<4;i++) dft9216(prach2+(i*9216*2),rxsigF[aa]+(i*9216*2),1); for (int i=0;i<4;i++) dft9216(prach2+(i*9216*2),rxsigF[aa]+(i*9216*2),1);
reps=4; reps=4;
} }
} else { } else {
dftlen=1536;
dft1536(prach2,rxsigF[aa],1); dft1536(prach2,rxsigF[aa],1);
if (prach_fmt != 0xc0) { if (prach_fmt != 0xc0) {
dft1536(prach2+3072,rxsigF[aa]+3072,1); dft1536(prach2+3072,rxsigF[aa]+3072,1);
...@@ -364,12 +371,13 @@ void rx_nr_prach_ru(RU_t *ru, ...@@ -364,12 +371,13 @@ void rx_nr_prach_ru(RU_t *ru,
else if (fp->N_RB_UL <= 273) { else if (fp->N_RB_UL <= 273) {
if (fp->threequarter_fs==0) { if (fp->threequarter_fs==0) {
prach2 = prach[aa] + (Ncp<<3); prach2 = prach[aa] + (Ncp<<3);
dftlen=98304;
//80,90,100 MHz @ 122.88 Ms/s //80,90,100 MHz @ 122.88 Ms/s
if (prach_sequence_length == 0) { if (prach_sequence_length == 0) {
if (prach_fmt == 0 || prach_fmt == 1 || prach_fmt == 2) if (prach_fmt == 0 || prach_fmt == 1 || prach_fmt == 2) {
dftlen=98304;
dft98304(prach2,rxsigF[aa],1); dft98304(prach2,rxsigF[aa],1);
}
if (prach_fmt == 1 || prach_fmt == 2) { if (prach_fmt == 1 || prach_fmt == 2) {
dft98304(prach2+196608,rxsigF[aa]+196608,1); dft98304(prach2+196608,rxsigF[aa]+196608,1);
reps++; reps++;
...@@ -380,9 +388,9 @@ void rx_nr_prach_ru(RU_t *ru, ...@@ -380,9 +388,9 @@ void rx_nr_prach_ru(RU_t *ru,
reps+=2; reps+=2;
} }
if (prach_fmt == 3) { if (prach_fmt == 3) {
dftlen=24576;
for (int i=0;i<4;i++) dft24576(prach2+(i*2*24576),rxsigF[aa]+(i*2*24576),1); for (int i=0;i<4;i++) dft24576(prach2+(i*2*24576),rxsigF[aa]+(i*2*24576),1);
reps=4; reps=4;
dftlen=24576;
} }
} }
else { else {
...@@ -412,9 +420,9 @@ void rx_nr_prach_ru(RU_t *ru, ...@@ -412,9 +420,9 @@ void rx_nr_prach_ru(RU_t *ru,
AssertFatal(fp->N_RB_UL <= 217,"cannot do more than 217 PRBs with 3/4 sampling\n"); AssertFatal(fp->N_RB_UL <= 217,"cannot do more than 217 PRBs with 3/4 sampling\n");
prach2 = prach[aa] + (6*Ncp); prach2 = prach[aa] + (6*Ncp);
// 80 MHz @ 92.16 Ms/s // 80 MHz @ 92.16 Ms/s
dftlen=73728;
if (prach_sequence_length == 0) { if (prach_sequence_length == 0) {
if (prach_fmt == 0 || prach_fmt == 1 || prach_fmt == 2) { if (prach_fmt == 0 || prach_fmt == 1 || prach_fmt == 2) {
dftlen=73728;
dft73728(prach2,rxsigF[aa],1); dft73728(prach2,rxsigF[aa],1);
reps++; reps++;
} }
...@@ -423,9 +431,9 @@ void rx_nr_prach_ru(RU_t *ru, ...@@ -423,9 +431,9 @@ void rx_nr_prach_ru(RU_t *ru,
reps++; reps++;
} }
if (prach_fmt == 3) { if (prach_fmt == 3) {
dftlen=18432;
for (int i=0;i<4;i++) dft18432(prach2+(i*2*18432),rxsigF[aa]+(i*2*18432),1); for (int i=0;i<4;i++) dft18432(prach2+(i*2*18432),rxsigF[aa]+(i*2*18432),1);
reps=4; reps=4;
dftlen=18432;
} }
} else { } else {
dftlen=3072; dftlen=3072;
......
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