maki/openairinterface5g
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Fix for the 16byte alignment issue observed during DMRS modulation.

Browse Source 
Segmentation fault observed in case the address for mod_dmrs[dmrssymbol] is not 16byte aligned.
This commit is contained in:
Raghavendra Dinavahi
2021-04-23 10:33:56 +02:00
committed by Thomas Schlichter
parent f3be3daa32
commit e658023ff5
4 changed files with 18 additions and 312 deletions
Download Patch File Download Diff File Expand all files Collapse all files
cmake_targets/1504_phytest_001.log
View File
openair1/PHY/NR_TRANSPORT/nr_dlsch.c
+18 -21
View File
@@ -159,7 +159,7 @@ uint8_t nr_generate_pdsch(PHY_VARS_gNB *gNB,
uint16_t nb_re = ((12*rel15->NrOfSymbols)-nb_re_dmrs*dmrs_len-xOverhead)*rel15->rbSize*rel15->nrOfLayers;
uint8_t Qm = rel15->qamModOrder[0];
uint32_t encoded_length = nb_re*Qm;
int16_t mod_dmrs[14][n_dmrs<<1] __attribute__ ((aligned(16)));
int16_t mod_dmrs[n_dmrs<<1] __attribute__ ((aligned(16)));
/* PTRS */
uint16_t beta_ptrs = 1;
@@ -264,24 +264,6 @@ uint8_t nr_generate_pdsch(PHY_VARS_gNB *gNB,
printf("\n");
}
#endif
/// DMRS QPSK modulation
// TODO: performance improvement, we can skip the modulation of DMRS symbols outside the bandwidth part
for (int l=rel15->StartSymbolIndex; l<rel15->StartSymbolIndex+rel15->NrOfSymbols; l++) {
if (rel15->dlDmrsSymbPos & (1 << l)) {
nr_modulation(pdsch_dmrs[l][0], n_dmrs*2, DMRS_MOD_ORDER, mod_dmrs[l]); // currently only codeword 0 is modulated. Qm = 2 as DMRS is QPSK modulated
#ifdef DEBUG_DLSCH
printf("DMRS modulation (symbol %d, %d symbols, type %d):\n", l, n_dmrs, dmrs_Type);
for (int i=0; i<n_dmrs>>4; i++) {
for (int j=0; j<8; j++) {
printf("%d %d\t", mod_dmrs[l][((i<<3)+j)<<1], mod_dmrs[l][(((i<<3)+j)<<1)+1]);
}
printf("\n");
}
#endif
}
}
/// Resource mapping
@@ -349,6 +331,21 @@ uint8_t nr_generate_pdsch(PHY_VARS_gNB *gNB,
}
}
/// DMRS QPSK modulation
if (rel15->dlDmrsSymbPos & (1 << l)) {
nr_modulation(pdsch_dmrs[l][0], n_dmrs*2, DMRS_MOD_ORDER, mod_dmrs); // currently only codeword 0 is modulated. Qm = 2 as DMRS is QPSK modulated
#ifdef DEBUG_DLSCH
printf("DMRS modulation (symbol %d, %d symbols, type %d):\n", l, n_dmrs, dmrs_Type);
for (int i=0; i<n_dmrs>>4; i++) {
for (int j=0; j<8; j++) {
printf("%d %d\t", mod_dmrs[((i<<3)+j)<<1], mod_dmrs[(((i<<3)+j)<<1)+1]);
}
printf("\n");
}
#endif
}
/* calculate if current symbol is PTRS symbols */
ptrs_idx = 0;
@@ -379,8 +376,8 @@ uint8_t nr_generate_pdsch(PHY_VARS_gNB *gNB,
/* Map DMRS Symbol */
if ( ( dmrs_symbol_map & (1 << l) ) && (k == ((start_sc+get_dmrs_freq_idx(n, k_prime, delta, dmrs_Type))%(frame_parms->ofdm_symbol_size)))) {
txdataF_precoding[ap][((l*frame_parms->ofdm_symbol_size + k)<<1) + (2*txdataF_offset)] = (Wt[l_prime]*Wf[k_prime]*amp*mod_dmrs[l][dmrs_idx<<1]) >> 15;
txdataF_precoding[ap][((l*frame_parms->ofdm_symbol_size + k)<<1) + 1 + (2*txdataF_offset)] = (Wt[l_prime]*Wf[k_prime]*amp*mod_dmrs[l][(dmrs_idx<<1) + 1]) >> 15;
txdataF_precoding[ap][((l*frame_parms->ofdm_symbol_size + k)<<1) + (2*txdataF_offset)] = (Wt[l_prime]*Wf[k_prime]*amp*mod_dmrs[dmrs_idx<<1]) >> 15;
txdataF_precoding[ap][((l*frame_parms->ofdm_symbol_size + k)<<1) + 1 + (2*txdataF_offset)] = (Wt[l_prime]*Wf[k_prime]*amp*mod_dmrs[(dmrs_idx<<1) + 1]) >> 15;
#ifdef DEBUG_DLSCH_MAPPING
printf("dmrs_idx %d\t l %d \t k %d \t k_prime %d \t n %d \t txdataF: %d %d\n",
dmrs_idx, l, k, k_prime, n, txdataF_precoding[ap][((l*frame_parms->ofdm_symbol_size + k)<<1) + (2*txdataF_offset)],
targets/PROJECTS/GENERIC-LTE-EPC/CONF/UE_0704_106_phytest_001.log
View File
targets/PROJECTS/GENERIC-LTE-EPC/CONF/gnb.band78.tm1.106PRB.usrpn300_typeB.conf
-291
View File
@@ -1,291 +0,0 @@
Active_gNBs = ( "gNB-Eurecom-5GNRBox");
# Asn1_verbosity, choice in: none, info, annoying
Asn1_verbosity = "none";
gNBs =
(
{
////////// Identification parameters:
gNB_ID = 0xe00;
cell_type = "CELL_MACRO_GNB";
gNB_name = "gNB-Eurecom-5GNRBox";
// Tracking area code, 0x0000 and 0xfffe are reserved values
tracking_area_code = 1;
plmn_list = ({mcc = 208; mnc = 93; mnc_length = 2;});
tr_s_preference = "local_mac"
////////// Physical parameters:
ssb_SubcarrierOffset = 0;
pdsch_AntennaPorts = 1;
pusch_AntennaPorts = 1;
servingCellConfigCommon = (
{
#spCellConfigCommon
physCellId = 0;
# downlinkConfigCommon
#frequencyInfoDL
# this is 3600 MHz + 43 PRBs@30kHz SCS (same as initial BWP), points to Subcarrier 0 of RB#10 of SSB block
absoluteFrequencySSB = 641032;
dl_frequencyBand = 78;
# this is 3600 MHz
dl_absoluteFrequencyPointA = 640000;
#scs-SpecificCarrierList
dl_offstToCarrier = 0;
# subcarrierSpacing
# 0=kHz15, 1=kHz30, 2=kHz60, 3=kHz120
dl_subcarrierSpacing = 1;
dl_carrierBandwidth = 106;
#initialDownlinkBWP
#genericParameters
# this is RBstart=33 (Start RB of SSB block),L=24 (275*(L-1))+RBstart
initialDLBWPlocationAndBandwidth = 6358; #6368;
# subcarrierSpacing
# 0=kHz15, 1=kHz30, 2=kHz60, 3=kHz120
initialDLBWPsubcarrierSpacing = 1;
#pdcch-ConfigCommon
initialDLBWPcontrolResourceSetZero = 0; #12;
initialDLBWPsearchSpaceZero = 0;
#pdsch-ConfigCommon
#pdschTimeDomainAllocationList (up to 16 entries)
initialDLBWPk0_0 = 0;
#initialULBWPmappingType
#0=typeA,1=typeB
initialDLBWPmappingType_0 = 1;
#this is SS=1,L=13
initialDLBWPstartSymbolAndLength_0 = 40;
initialDLBWPk0_1 = 0;
initialDLBWPmappingType_1 = 1;
#this is SS=2,L=12
initialDLBWPstartSymbolAndLength_1 = 53;
initialDLBWPk0_2 = 0;
initialDLBWPmappingType_2 = 1;
#this is SS=1,L=12
initialDLBWPstartSymbolAndLength_2 = 54;
initialDLBWPk0_3 = 0;
initialDLBWPmappingType_3 = 1;
#this is SS=1,L=5
initialDLBWPstartSymbolAndLength_3 = 57;
#uplinkConfigCommon
#frequencyInfoUL
ul_frequencyBand = 78;
#scs-SpecificCarrierList
ul_offstToCarrier = 0;
# subcarrierSpacing
# 0=kHz15, 1=kHz30, 2=kHz60, 3=kHz120
ul_subcarrierSpacing = 1;
ul_carrierBandwidth = 106;
pMax = 20;
#initialUplinkBWP
#genericParameters
initialULBWPlocationAndBandwidth = 6358;#6368;
# subcarrierSpacing
# 0=kHz15, 1=kHz30, 2=kHz60, 3=kHz120
initialULBWPsubcarrierSpacing = 1;
#rach-ConfigCommon
#rach-ConfigGeneric
prach_ConfigurationIndex = 98;
#prach_msg1_FDM
#0 = one, 1=two, 2=four, 3=eight
prach_msg1_FDM = 0;
prach_msg1_FrequencyStart = 0;
zeroCorrelationZoneConfig = 13;
preambleReceivedTargetPower = -118;
#preamblTransMax (0...10) = (3,4,5,6,7,8,10,20,50,100,200)
preambleTransMax = 6;
#powerRampingStep
# 0=dB0,1=dB2,2=dB4,3=dB6
powerRampingStep = 1;
#ra_ReponseWindow
#1,2,4,8,10,20,40,80
ra_ResponseWindow = 4;
#ssb_perRACH_OccasionAndCB_PreamblesPerSSB_PR
#1=oneeighth,2=onefourth,3=half,4=one,5=two,6=four,7=eight,8=sixteen
ssb_perRACH_OccasionAndCB_PreamblesPerSSB_PR = 4;
#oneHalf (0..15) 4,8,12,16,...60,64
ssb_perRACH_OccasionAndCB_PreamblesPerSSB = 15;
#ra_ContentionResolutionTimer
#(0..7) 8,16,24,32,40,48,56,64
ra_ContentionResolutionTimer = 7;
rsrp_ThresholdSSB = 19;
#prach-RootSequenceIndex_PR
#1 = 839, 2 = 139
prach_RootSequenceIndex_PR = 2;
prach_RootSequenceIndex = 1;
# SCS for msg1, can only be 15 for 30 kHz < 6 GHz, takes precendence over the one derived from prach-ConfigIndex
#
msg1_SubcarrierSpacing = 1,
# restrictedSetConfig
# 0=unrestricted, 1=restricted type A, 2=restricted type B
restrictedSetConfig = 0,
# pusch-ConfigCommon (up to 16 elements)
initialULBWPk2_0 = 6;
initialULBWPmappingType_0 = 1
# this is SS=0 L=11
initialULBWPstartSymbolAndLength_0 = 55;
initialULBWPk2_1 = 6;
initialULBWPmappingType_1 = 1;
# this is SS=0 L=12
initialULBWPstartSymbolAndLength_1 = 69;
initialULBWPk2_2 = 7;
initialULBWPmappingType_2 = 1;
# this is SS=10 L=4
initialULBWPstartSymbolAndLength_2 = 52;
msg3_DeltaPreamble = 1;
p0_NominalWithGrant =-90;
# pucch-ConfigCommon setup :
# pucchGroupHopping
# 0 = neither, 1= group hopping, 2=sequence hopping
pucchGroupHopping = 0;
hoppingId = 40;
p0_nominal = -90;
# ssb_PositionsInBurs_BitmapPR
# 1=short, 2=medium, 3=long
ssb_PositionsInBurst_PR = 2;
ssb_PositionsInBurst_Bitmap = 0x1;
# ssb_periodicityServingCell
# 0 = ms5, 1=ms10, 2=ms20, 3=ms40, 4=ms80, 5=ms160, 6=spare2, 7=spare1
ssb_periodicityServingCell = 2;
# dmrs_TypeA_position
# 0 = pos2, 1 = pos3
dmrs_TypeA_Position = 0;
# subcarrierSpacing
# 0=kHz15, 1=kHz30, 2=kHz60, 3=kHz120
subcarrierSpacing = 1;
#tdd-UL-DL-ConfigurationCommon
# subcarrierSpacing
# 0=kHz15, 1=kHz30, 2=kHz60, 3=kHz120
referenceSubcarrierSpacing = 1;
# pattern1
# dl_UL_TransmissionPeriodicity
# 0=ms0p5, 1=ms0p625, 2=ms1, 3=ms1p25, 4=ms2, 5=ms2p5, 6=ms5, 7=ms10
dl_UL_TransmissionPeriodicity = 6;
nrofDownlinkSlots = 7;
nrofDownlinkSymbols = 6;
nrofUplinkSlots = 2;
nrofUplinkSymbols = 4;
ssPBCH_BlockPower = -25;
}
);
# ------- SCTP definitions
SCTP :
{
# Number of streams to use in input/output
SCTP_INSTREAMS = 2;
SCTP_OUTSTREAMS = 2;
};
////////// MME parameters:
mme_ip_address = ( { ipv4 = "192.168.12.26";
ipv6 = "192:168:30::17";
active = "yes";
preference = "ipv4";
}
);
NETWORK_INTERFACES :
{
GNB_INTERFACE_NAME_FOR_S1_MME = "eth0";
GNB_IPV4_ADDRESS_FOR_S1_MME = "192.168.12.111/24";
GNB_INTERFACE_NAME_FOR_S1U = "eth0";
GNB_IPV4_ADDRESS_FOR_S1U = "192.168.12.111/24";
GNB_PORT_FOR_S1U = 2152; # Spec 2152
};
}
);
MACRLCs = (
{
num_cc = 1;
tr_s_preference = "local_L1";
tr_n_preference = "local_RRC";
}
);
L1s = (
{
num_cc = 1;
tr_n_preference = "local_mac";
pusch_proc_threads = 8;
}
);
RUs = (
{
local_rf = "yes"
nb_tx = 1
nb_rx = 1
att_tx = 0
att_rx = 0;
bands = [7];
max_pdschReferenceSignalPower = -27;
max_rxgain = 50;
eNB_instances = [0];
## beamforming 1x2 matrix: 1 layer x 2 antennas
#bf_weights = [0x00007fff, 0x00007fff];
## beamforming 1x4 matrix: 1 layer x 4 antennas
#bf_weights = [0x00007fff, 0x0000,0x0000, 0x0000];
## beamforming 2x2 matrix:
#bf_weights = [0x00007fff, 0x00000000, 0x00000000, 0x00007fff];
## beamforming 4x4 matrix:
#bf_weights = [0x00007fff, 0x0000, 0x0000, 0x0000, 0x00000000, 0x00007fff, 0x0000, 0x0000, 0x0000, 0x0000, 0x00007fff, 0x0000, 0x0000, 0x0000, 0x0000, 0x00007fff];
sdr_addrs = "addr=192.168.10.2,mgmt_addr=192.168.10.2,second_addr=192.168.20.2";
clock_src = "external";
}
);
THREAD_STRUCT = (
{
#three config for level of parallelism "PARALLEL_SINGLE_THREAD", "PARALLEL_RU_L1_SPLIT", or "PARALLEL_RU_L1_TRX_SPLIT"
parallel_config = "PARALLEL_RU_L1_TRX_SPLIT";
#two option for worker "WORKER_DISABLE" or "WORKER_ENABLE"
worker_config = "WORKER_ENABLE";
}
);
log_config :
{
global_log_level ="info";
global_log_verbosity ="medium";
hw_log_level ="info";
hw_log_verbosity ="medium";
phy_log_level ="info";
phy_log_verbosity ="medium";
mac_log_level ="info";
mac_log_verbosity ="high";
rlc_log_level ="info";
rlc_log_verbosity ="medium";
pdcp_log_level ="info";
pdcp_log_verbosity ="medium";
rrc_log_level ="info";
rrc_log_verbosity ="medium";
};