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addition of IF4p5 ULTICK packet for TDD fronthaul

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This commit is contained in:
Raymond Knopp
2017-01-13 19:49:22 +01:00
parent de8ab34d85
commit 848f78465b
7 changed files with 82 additions and 48 deletions
Download Patch File Download Diff File Expand all files Collapse all files
openair1/PHY/LTE_TRANSPORT/if4_tools.c
+39 -26
View File
@@ -100,7 +100,8 @@ void send_IF4p5(PHY_VARS_eNB *eNB, int frame, int subframe, uint16_t packet_type
slotoffsetF += fp->ofdm_symbol_size;
blockoffsetF += fp->ofdm_symbol_size;
}
} else if (packet_type == IF4p5_PULFFT) {
} else if ((packet_type == IF4p5_PULFFT)||
(packet_type == IF4p5_PULTICK)){
db_fulllength = 12*fp->N_RB_UL;
db_halflength = (db_fulllength)>>1;
slotoffsetF = 1;
@@ -113,33 +114,45 @@ void send_IF4p5(PHY_VARS_eNB *eNB, int frame, int subframe, uint16_t packet_type
packet_header = (IF4p5_header_t *)(tx_buffer);
data_block = (uint16_t*)(tx_buffer + sizeof_IF4p5_header_t);
}
gen_IF4p5_ul_header(packet_header, frame, subframe);
gen_IF4p5_ul_header(packet_header, packet_type, frame, subframe);
for (symbol_id=0; symbol_id<fp->symbols_per_tti; symbol_id++) {
LOG_D(PHY,"IF4p5_PULFFT: frame %d, subframe %d, symbol %d\n",frame,subframe,symbol_id);
for (element_id=0; element_id<db_halflength; element_id++) {
i = (uint16_t*) &rxdataF[0][blockoffsetF+element_id];
data_block[element_id] = ((uint16_t) lin2alaw[*i]) | (lin2alaw[*(i+1)]<<8);
i = (uint16_t*) &rxdataF[0][slotoffsetF+element_id];
data_block[element_id+db_halflength] = ((uint16_t) lin2alaw[*i]) | (lin2alaw[*(i+1)]<<8);
}
packet_header->frame_status &= ~(0x000f<<26);
packet_header->frame_status |= (symbol_id&0x000f)<<26;
if (packet_type == IF4p5_PULFFT) {
for (symbol_id=0; symbol_id<fp->symbols_per_tti; symbol_id++) {
LOG_D(PHY,"IF4p5_PULFFT: frame %d, subframe %d, symbol %d\n",frame,subframe,symbol_id);
for (element_id=0; element_id<db_halflength; element_id++) {
i = (uint16_t*) &rxdataF[0][blockoffsetF+element_id];
data_block[element_id] = ((uint16_t) lin2alaw[*i]) | (lin2alaw[*(i+1)]<<8);
i = (uint16_t*) &rxdataF[0][slotoffsetF+element_id];
data_block[element_id+db_halflength] = ((uint16_t) lin2alaw[*i]) | (lin2alaw[*(i+1)]<<8);
}
packet_header->frame_status &= ~(0x000f<<26);
packet_header->frame_status |= (symbol_id&0x000f)<<26;
if ((eNB->ifdevice.trx_write_func(&eNB->ifdevice,
symbol_id,
&tx_buffer,
db_fulllength,
1,
IF4p5_PULFFT)) < 0) {
perror("ETHERNET write for IF4p5_PULFFT\n");
}
slotoffsetF += fp->ofdm_symbol_size;
blockoffsetF += fp->ofdm_symbol_size;
}
}
else {
if ((eNB->ifdevice.trx_write_func(&eNB->ifdevice,
symbol_id,
&tx_buffer,
db_fulllength,
0,
&tx_buffer,
0,
1,
IF4p5_PULFFT)) < 0) {
perror("ETHERNET write for IF4p5_PULFFT\n");
IF4p5_PULTICK)) < 0) {
perror("ETHERNET write for IF4p5_PULFFT\n");
}
slotoffsetF += fp->ofdm_symbol_size;
blockoffsetF += fp->ofdm_symbol_size;
}
}
} else if (packet_type == IF4p5_PRACH) {
// FIX: hard coded prach samples length
LOG_D(PHY,"IF4p5_PRACH: frame %d, subframe %d\n",frame,subframe);
@@ -303,10 +316,10 @@ void gen_IF4p5_dl_header(IF4p5_header_t *dl_packet, int frame, int subframe) {
}
void gen_IF4p5_ul_header(IF4p5_header_t *ul_packet, int frame, int subframe) {
void gen_IF4p5_ul_header(IF4p5_header_t *ul_packet, uint16_t packet_subtype, int frame, int subframe) {
ul_packet->type = IF4p5_PACKET_TYPE;
ul_packet->sub_type = IF4p5_PULFFT;
ul_packet->sub_type = packet_subtype;
ul_packet->rsvd = 0;
openair1/PHY/LTE_TRANSPORT/if4_tools.h
+2 -1
View File
@@ -37,6 +37,7 @@
#define IF4p5_PULFFT 0x0019
#define IF4p5_PDLFFT 0x0020
#define IF4p5_PRACH 0x0021
#define IF4p5_PULTICK 0x0022
struct IF4p5_header {
/// Type
@@ -55,7 +56,7 @@ typedef struct IF4p5_header IF4p5_header_t;
void gen_IF4p5_dl_header(IF4p5_header_t*, int, int);
void gen_IF4p5_ul_header(IF4p5_header_t*, int, int);
void gen_IF4p5_ul_header(IF4p5_header_t*, uint16_t, int, int);
void gen_IF4p5_prach_header(IF4p5_header_t*, int, int);
targets/ARCH/ETHERNET/USERSPACE/LIB/eth_raw.c
+2
View File
@@ -198,6 +198,8 @@ int trx_eth_write_raw_IF4p5(openair0_device *device, openair0_timestamp timestam
packet_size = RAW_IF4p5_PDLFFT_SIZE_BYTES(nblocks);
} else if (flags == IF4p5_PULFFT) {
packet_size = RAW_IF4p5_PULFFT_SIZE_BYTES(nblocks);
} else if (flags == IF4p5_PULTICK) {
packet_size = RAW_IF4p5_PULTICK_SIZE_BYTES;
} else if (flags == IF5_MOBIPASS) {
packet_size = RAW_IF5_MOBIPASS_SIZE_BYTES;
} else {
targets/ARCH/ETHERNET/USERSPACE/LIB/eth_udp.c
+2
View File
@@ -206,6 +206,8 @@ int trx_eth_write_udp_IF4p5(openair0_device *device, openair0_timestamp timestam
packet_size = UDP_IF4p5_PDLFFT_SIZE_BYTES(nblocks);
} else if (flags == IF4p5_PULFFT) {
packet_size = UDP_IF4p5_PULFFT_SIZE_BYTES(nblocks);
} else if (flags == IF4p5_PULTICK) {
packet_size = UDP_IF4p5_PULTICK_SIZE_BYTES;
} else if (flags == IF4p5_PRACH) {
packet_size = UDP_IF4p5_PRACH_SIZE_BYTES;
} else {
targets/ARCH/ETHERNET/USERSPACE/LIB/if_defs.h
+2
View File
@@ -61,9 +61,11 @@
#define RAW_IF4p5_PDLFFT_SIZE_BYTES(nblocks) (MAC_HEADER_SIZE_BYTES + sizeof_IF4p5_header_t + DATA_BLOCK_SIZE_BYTES(nblocks))
#define RAW_IF4p5_PULFFT_SIZE_BYTES(nblocks) (MAC_HEADER_SIZE_BYTES + sizeof_IF4p5_header_t + DATA_BLOCK_SIZE_BYTES(nblocks))
#define RAW_IF4p5_PULTICK_SIZE_BYTES (MAC_HEADER_SIZE_BYTES + sizeof_IF4p5_header_t)
#define RAW_IF4p5_PRACH_SIZE_BYTES (MAC_HEADER_SIZE_BYTES + sizeof_IF4p5_header_t + PRACH_BLOCK_SIZE_BYTES)
#define UDP_IF4p5_PDLFFT_SIZE_BYTES(nblocks) (sizeof_IF4p5_header_t + DATA_BLOCK_SIZE_BYTES(nblocks))
#define UDP_IF4p5_PULFFT_SIZE_BYTES(nblocks) (sizeof_IF4p5_header_t + DATA_BLOCK_SIZE_BYTES(nblocks))
#define UDP_IF4p5_PULTICK_SIZE_BYTES (sizeof_IF4p5_header_t)
#define UDP_IF4p5_PRACH_SIZE_BYTES (sizeof_IF4p5_header_t + PRACH_BLOCK_SIZE_BYTES)
// Mobipass packet sizes
targets/ARCH/USRP/USERSPACE/LIB/usrp_lib.cpp
+11 -1
View File
@@ -181,6 +181,16 @@ static int trx_usrp_write(openair0_device *device, openair0_timestamp timestamp,
s->tx_md.has_time_spec = true;
else
s->tx_md.has_time_spec = false;
if (device->openair0_cfg[0].tx_freq[0] == device->openair0_cfg[0].rx_freq[0]) {
// for TDD each write should be considered as a burst to trigger the switch on GPIO
s->tx_md.start_of_burst = true;
s->tx_md.end_of_burst = true;
}
else {
s->tx_md.start_of_burst = false;
s->tx_md.end_of_burst = false;
}
if (cc>1) {
std::vector<void *> buff_ptrs;
@@ -190,7 +200,7 @@ static int trx_usrp_write(openair0_device *device, openair0_timestamp timestamp,
else
ret = (int)s->tx_stream->send(buff[0], nsamps, s->tx_md,1e-3);
s->tx_md.start_of_burst = false;
if (ret != nsamps) {
printf("[xmit] tx samples %d != %d\n",ret,nsamps);
targets/RT/USER/lte-enb.c
+24 -20
View File
@@ -875,29 +875,33 @@ void rx_rf(PHY_VARS_eNB *eNB,int *frame,int *subframe) {
// Transmit TX buffer based on timestamp from RX
// printf("trx_write -> USRP TS %llu (sf %d)\n", (proc->timestamp_rx+(3*fp->samples_per_tti)),(proc->subframe_rx+2)%10);
VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME( VCD_SIGNAL_DUMPER_VARIABLES_TRX_TST, (proc->timestamp_rx+(tx_sfoffset*fp->samples_per_tti)-openair0_cfg[0].tx_sample_advance)&0xffffffff );
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_TRX_WRITE, 1 );
// prepare tx buffer pointers
for (i=0; i<fp->nb_antennas_tx; i++)
txp[i] = (void*)&eNB->common_vars.txdata[0][i][((proc->subframe_rx+tx_sfoffset)%10)*fp->samples_per_tti];
txs = eNB->rfdevice.trx_write_func(&eNB->rfdevice,
proc->timestamp_rx+eNB->ts_offset+(tx_sfoffset*fp->samples_per_tti)-openair0_cfg[0].tx_sample_advance,
txp,
fp->samples_per_tti,
fp->nb_antennas_tx,
1);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_TRX_WRITE, 0 );
if (txs != fp->samples_per_tti) {
LOG_E(PHY,"TX : Timeout (sent %d/%d)\n",txs, fp->samples_per_tti);
exit_fun( "problem transmitting samples" );
}
if ((subframe_select(fp,proc->subframe_rx+tx_sfoffset) == SF_DL) ||
(subframe_select(fp,proc->subframe_rx+tx_sfoffset) == SF_S)) {
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_TRX_WRITE, 1 );
for (i=0; i<fp->nb_antennas_tx; i++)
txp[i] = (void*)&eNB->common_vars.txdata[0][i][((proc->subframe_rx+tx_sfoffset)%10)*fp->samples_per_tti];
txs = eNB->rfdevice.trx_write_func(&eNB->rfdevice,
proc->timestamp_rx+eNB->ts_offset+(tx_sfoffset*fp->samples_per_tti)-openair0_cfg[0].tx_sample_advance,
txp,
fp->samples_per_tti,
fp->nb_antennas_tx,
1);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_TRX_WRITE, 0 );
if (txs != fp->samples_per_tti) {
LOG_E(PHY,"TX : Timeout (sent %d/%d)\n",txs, fp->samples_per_tti);
exit_fun( "problem transmitting samples" );
}
}
}
for (i=0; i<fp->nb_antennas_rx; i++)
rxp[i] = (void*)&eNB->common_vars.rxdata[0][i][*subframe*fp->samples_per_tti];