Hello,
Is anyone here using Amarisoft eNB (LTE 100) with the LimeSDR?
I tried using this RF driver https://github.com/myriadrf/trx-lms7002m but the LTE eNB is saying the TRX API should be 12 and this driver is 11. I tried simply changing it in the .h but it didn’t like it.
If anyone has it working with a fairly recent version of Amarisoft (oldest I have is 06-2017 and it still expects API 12) can you let know where you got the driver?
Thanks
Hello,
I think we are still using older eNB that expects TRX API version 11 in our test setups. I will try to get more recent eNB and update trx-lms7002m to use API 12.
Thanks!
Is there some documentation on the TRX API somewhere? Maybe I could help bring it up to date.
BTW, How about some development level of price, for Lime users 
Hi,
I have updated the header (trx_driver.h). I haven’t done a lot of testing but eNB (2017-10-13) starts now.
Thank you!
It does start but having problems with my configuration for Cat M1:
[INFO] Estimated reference clock 30.7198 MHz
[INFO] Selected reference clock 30.720 MHz
[INFO] LMS7002M cache /home/gabriel/.limesuite/LMS7002M_cache_values.db
DAC WRITE
Config file: config/rf_driver/sodera_siso_800MHz.ini
CGEN: Freq=170 MHz, VCO=2.38 GHz, INT=76, FRAC=496980, DIV_OUTCH_CGEN=5
M=196, N=4, Fvco=1041.250 MHz
M=196, N=4, Fvco=1041.250 MHz
M=196, N=4, Fvco=1041.250 MHz
M=196, N=4, Fvco=1041.250 MHz
Force calibration
sample rate must be at least 9000000 Hz
libusb: warning [libusb_exit] application left some devices open
Would you have any suggestions? I tried adding a sample_rate parameter but it didn’t help.
Here’s the configuration file I’m using with the USRP TRX.
Thanks again.
/* lteenb configuration file example for Category M1 UEs
* version 2017-10-10
* Copyright (C) 2016-2017 Amarisoft
*/
{
/* Log filter: syntax: layer.field=value[,...]
Possible layers are phy, mac, rlc, pdcp, rrc, nas, s1ap, x2ap, gtpu and
all. The 'all' layer is used to address all the layers at the
same time.
field values:
- 'level': the log level of each layer can be set to 'none',
'error', 'info' or 'debug'. Use 'debug' to log all the messages.
- 'max_size': set the maximum size of the hex dump. 0 means no
hex dump. -1 means no limit.
*/
//log_options: "all.level=debug,all.max_size=32",
log_options: "all.level=error,all.max_size=0,nas.level=debug,nas.max_size=1,s1ap.level=debug,s1ap.max_size=1,x2ap.level=debug,x2ap.max_size=1,rrc.level=debug,rrc.max_size=1",
log_filename: "/tmp/enb0.log",
/* Enable remote API and Web interface */
//com_addr: "0.0.0.0:9001",
/* Bandwidth: 25: 5 MHz, 50: 10 MHz, 75: 15 MHz, 100: 20 MHz */
#define N_RB_DL 50
/* number of downlink antennas: 1 = SISO, 2 = MIMO 2x2 */
#define N_ANTENNA_DL 2
/* RF driver configuration */
include "rf_driver/1chan.cfg",
mme_list: [
{
/* address of MME for S1AP connection. Must be modified if the MME
runs on a different host. */
mme_addr: "127.0.1.100",
},
],
/* GTP bind address (=address of the ethernet interface connected to
the MME). Must be modified if the MME runs on a different host. */
gtp_addr: "127.0.1.1",
/* high 20 bits of SIB1.cellIdentifier */
enb_id: 0x1A2D0,
/* list of cells */
cell_list: [
{
/* Broadcasted PLMN identities */
plmn_list: [
"00101",
],
//dl_earfcn: 300, /* DL center frequency: 2132 MHz (Band 1) */
//dl_earfcn: 900, /* DL center frequency: 1960 MHz (Band 2) */
//dl_earfcn: 1575, /* DL center frequency: 1842.5 MHz (Band 3) */
//dl_earfcn: 2150, /* DL center frequency: 2130 MHz (Band 4) */
//dl_earfcn: 2525, /* DL center frequency: 881.5 MHz (Band 5) */
dl_earfcn: 3350, /* DL center frequency: 2680 MHz (Band 7) */
//dl_earfcn: 6300, /* 806 MHz (Band 20) */
//dl_earfcn: 38050, /* 2600 MHz (band 38) */
//dl_earfcn: 40620, /* 2593 MHz (band 41) */
//dl_earfcn: 42590, /* 3500 MHz (band 42) */
n_id_cell: 1,
cell_id: 0x01,
tac: 0x0001,
root_sequence_index: 204, /* PRACH root sequence index */
},
], /* cell_list */
/* default cell parameters */
cell_default: {
n_antenna_dl: N_ANTENNA_DL, /* number of DL antennas */
n_antenna_ul: 1, /* number of UL antennas */
n_rb_dl: N_RB_DL,
cyclic_prefix: "normal",
phich_duration: "normal",
phich_resource: "1", /* ratio of NG */
/* System Information Block type 1 */
sib1: "sib1.asn",
/* other SIBs, in same order as the scheduling list in SIB 1 */
#if N_RB_DL == 25
sib_sched_list: [ "sib23_rb25_nbr.asn" ],
#else
sib_sched_list: [ `sib23_rb${N_RB_DL}.asn` ],
#endif
si_coderate: 0.20, /* maximum code rate for SI/RA/P-RNTI messages */
si_pdcch_format: 2, /* 2 or 3. Log2 of the number of CCEs for PDCCH
for SI/RA/P-RNTI */
n_symb_cch: 0, /* number of symbols for CCH (0 = auto) */
/* PDSCH dedicated config (currently same for all UEs) */
pdsch_dedicated: {
#if N_ANTENNA_DL == 2
p_a: -3,
#else
p_a: 0,
#endif
},
/* If defined, force for number of CCEs for UE specific PDCCH to
2^pdcch_format. Otherwise it is computed from the reported
CQI. Range: 0 to 3. */
pdcch_format: 2,
/* if defined, force the PDSCH MCS for all UEs. Otherwise it is
computed from the reported CQI */
/* pdsch_mcs: 12, */
/* PUSCH dedicated config (currently same for all UEs) */
pusch_dedicated: {
beta_offset_ack_index: 9,
beta_offset_ri_index: 6,
beta_offset_cqi_index: 6,
},
/* MCS for Msg3 (=CCCH RRC Connection Request) */
pusch_msg3_mcs: 1,
/* this CQI value is assumed when none is received from the UE */
initial_cqi: 3,
/* if defined, force the PUSCH MCS for all UEs. Otherwise it is
computed from the last received SRS/PUSCH. */
// pusch_mcs: 18,
/* Scheduling request period (ms). Must be >= 40 for HD-FDD */
sr_period: 20,
/* CQI report config */
cqi_period: 40, /* period (ms). Must be >= 32 for HD-FDD */
#if N_ANTENNA_DL == 2
m_ri: 8,
transmission_mode: 3,
#endif
/* SRS dedicated config. All UEs share these
parameters. srs_config_index and freq_domain_position are
allocated for each UE) */
srs_dedicated: {
srs_period: 40, /* period (ms). Must be >= 40 for HD-FDD */
srs_bandwidth: 3,
srs_hopping_bandwidth: 0,
},
/* MAC configuration (same for all UEs) */
mac_config: {
ul_max_harq_tx: 5, /* max number of HARQ transmissions for uplink */
dl_max_harq_tx: 5, /* max number of HARQ transmissions for downlink */
},
/* CPU load limitation */
pusch_max_its: 6, /* max number of turbo decoder iterations */
/* dynamic power control */
dpc: true,
dpc_pusch_snr_target: 15,
dpc_pucch_snr_target: 10,
/* RRC/UP ciphering algorithm preference. EEA0 is always the last. */
cipher_algo_pref: [],
/* RRC integrity algorithm preference. EIA0 is always the last. */
integ_algo_pref: [2, 1],
/* (in ms) send RRC connection release after this time of network
inactivity */
inactivity_timer: 10000,
/* DRB configuration */
drb_config: "drb.cfg",
/* configuration for Bandwidth Reduced UEs */
br_ue: {
br_root_sequence_index: 648,
br_r_sib1: 1, /* number of SIB1 repetitions per 20 ms (1, 2 or 4) */
br_si_window_length: 40, /* in ms */
br_si_repetition_pattern: 4, /* 1, 2, 4, 8 */
br_sib_sched_list: [
{ si_periodicity: 16, filename: `sib23_rb${N_RB_DL}_br.asn` },
],
br_rar_coderate: 0.20, /* max code rate for the RAR message */
br_mpdcch_css_ra_al: 24, /* MPDCCH aggregation level: 8, 16 or 24 */
br_mpdcch_n_rb: 6, /* MPDCCH: number of PRBs: 2, 4, 6 */
br_mpdcch_al: 24, /* MPDCCH aggregation level for each UE (CQI is currently ignored) */
br_initial_cqi: 4, /* currently cannot be lower because no repetition are possible for CCCH */
br_pdsch_n_rep: 1, /* number of repetitions for PDSCH */
br_paging_mcs: 5, /* mcs used for paging */
br_paging_n_rep: 1, /* number of repetitions for paging */
br_n1_pucch_sr_count: 5,
br_cqi_pucch_n_rb: 2,
br_mpdcch_ue_count: 10,
br_srs_enabled: false, /* disable SRS for BR UE */
},
},
}
Sample rate should be set in “config/rf_driver/1chan.cfg”. I have noticed that there is only one (almost empty) configuration file on GitHub (you can try that). I will add some example configuration files to GitHub.
Silly me, forgot to check on the rf_driver file. It’s working now awesome! Thanks so much for the help and patience.