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UE only calls trx_write in UL slots when used with USRP. This improves real-time performance and is necessary for controlling the external switch. However, we still need to take the proper TDD config into account (tbd).

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This commit is contained in:
Florian Kaltenberger
2020-12-18 13:31:23 +01:00
parent 70e87bfd13
commit 2f30ed68ba
1 changed files with 19 additions and 12 deletions
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executables/nr-ue.c
+19 -12
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@@ -757,8 +757,8 @@ void *UE_thread(void *arg) {
}
curMsg->proc.timestamp_tx = timestamp+
UE->frame_parms.get_samples_slot_timestamp(slot_nr,
&UE->frame_parms,DURATION_RX_TO_TX) - firstSymSamp;
UE->frame_parms.get_samples_slot_timestamp(slot_nr,&UE->frame_parms,DURATION_RX_TO_TX-RX_NB_TH)
- firstSymSamp - openair0_cfg[0].tx_sample_advance - UE->N_TA_offset - UE->timing_advance;
notifiedFIFO_elt_t *res;
@@ -780,17 +780,24 @@ void *UE_thread(void *arg) {
LOG_E(PHY,"Decoded frame index (%d) is not compatible with current context (%d), UE should go back to synch mode\n",
decoded_frame_rx, curMsg->proc.frame_rx );
AssertFatal( writeBlockSize ==
UE->rfdevice.trx_write_func(&UE->rfdevice,
timestamp+
UE->frame_parms.get_samples_slot_timestamp(slot_nr,
&UE->frame_parms,DURATION_RX_TO_TX - RX_NB_TH) - firstSymSamp -
openair0_cfg[0].tx_sample_advance - UE->N_TA_offset - UE->timing_advance,
txp,
writeBlockSize,
UE->frame_parms.nb_antennas_tx,
1),"");
int flags = 0;
int slot_tx_usrp = slot_nr + DURATION_RX_TO_TX - RX_NB_TH;
if (slot_tx_usrp%10==7)
flags=2;
else if (slot_tx_usrp%10==8)
flags = 1;
else if (slot_tx_usrp%10==9)
flags = 3;
if (flags || IS_SOFTMODEM_RFSIM || IS_SOFTMODEM_NOS1)
AssertFatal( writeBlockSize ==
UE->rfdevice.trx_write_func(&UE->rfdevice,
curMsg->proc.timestamp_tx,
txp,
writeBlockSize,
UE->frame_parms.nb_antennas_tx,
flags),"");
for (int i=0; i<UE->frame_parms.nb_antennas_tx; i++)
memset(txp[i], 0, writeBlockSize);