lms: Initial multi-arfcn support
With current state multi-arfcn can be used (eg. I can place a call
between 2 phones using TRX1 and sustain for as long as wanted), but from
time to time (around every 20seconds), a burst of Tx packed dropped
events from LimeSuite appears.
LimeNet-micro coefficients have yet not been tested.
Related: OS#4362
Change-Id: I7e67d90a8126546eeeeba376f816ec5d158d4712
diff --git a/Transceiver52M/device/lms/LMSDevice.cpp b/Transceiver52M/device/lms/LMSDevice.cpp
index 5a5fbe4..884cc28 100644
--- a/Transceiver52M/device/lms/LMSDevice.cpp
+++ b/Transceiver52M/device/lms/LMSDevice.cpp
@@ -69,17 +69,21 @@
double max_tx_gain;
/* Sample rate coef (without having TX/RX samples per symbol into account) */
double rate;
+ /* Sample rate coef (without having TX/RX samples per symbol into account), if multi-arfcn is enabled */
+ double rate_multiarfcn;
/* Coefficient multiplied by TX sample rate in order to shift Tx time */
double ts_offset_coef;
+ /* Coefficient multiplied by TX sample rate in order to shift Tx time, if multi-arfcn is enabled */
+ double ts_offset_coef_multiarfcn;
/* Device Name Prefix as presented by LimeSuite API LMS_GetDeviceInfo() */
std::string name_prefix;
};
static const std::map<enum lms_dev_type, struct dev_desc> dev_param_map {
- { LMS_DEV_SDR_USB, { true, true, 73.0, GSMRATE, 8.9e-5, LMS_DEV_SDR_USB_PREFIX_NAME } },
- { LMS_DEV_SDR_MINI, { false, true, 66.0, GSMRATE, 8.9e-5, LMS_DEV_SDR_MINI_PREFIX_NAME } },
- { LMS_DEV_NET_MICRO, { true, false, 71.0, GSMRATE, 8.9e-5, LMS_DEV_NET_MICRO_PREFIX_NAME } },
- { LMS_DEV_UNKNOWN, { true, true, 73.0, GSMRATE, 8.9e-5, "UNKNOWN" } },
+ { LMS_DEV_SDR_USB, { true, true, 73.0, GSMRATE, MCBTS_SPACING, 8.9e-5, 7.9e-5, LMS_DEV_SDR_USB_PREFIX_NAME } },
+ { LMS_DEV_SDR_MINI, { false, true, 66.0, GSMRATE, MCBTS_SPACING, 8.9e-5, 8.2e-5, LMS_DEV_SDR_MINI_PREFIX_NAME } },
+ { LMS_DEV_NET_MICRO, { true, false, 71.0, GSMRATE, MCBTS_SPACING, 8.9e-5, 7.9e-5, LMS_DEV_NET_MICRO_PREFIX_NAME } },
+ { LMS_DEV_UNKNOWN, { true, true, 73.0, GSMRATE, MCBTS_SPACING, 8.9e-5, 7.9e-5, "UNKNOWN" } },
};
static enum lms_dev_type parse_dev_type(lms_device_t *m_lms_dev)
@@ -281,7 +285,10 @@
goto out_close;
print_range("Sample Rate", &range_sr);
- sr_host = dev_desc.rate * tx_sps;
+ if (iface == MULTI_ARFCN)
+ sr_host = dev_desc.rate_multiarfcn * tx_sps;
+ else
+ sr_host = dev_desc.rate * tx_sps;
LOGC(DDEV, INFO) << "Setting sample rate to " << sr_host << " " << tx_sps;
if (LMS_SetSampleRate(m_lms_dev, sr_host, 32) < 0)
goto out_close;
@@ -290,7 +297,10 @@
goto out_close;
LOGC(DDEV, INFO) << "Sample Rate: Host=" << sr_host << " RF=" << sr_rf;
- ts_offset = static_cast<TIMESTAMP>(dev_desc.ts_offset_coef * sr_host);
+ if (iface == MULTI_ARFCN)
+ ts_offset = static_cast<TIMESTAMP>(dev_desc.ts_offset_coef_multiarfcn * sr_host);
+ else
+ ts_offset = static_cast<TIMESTAMP>(dev_desc.ts_offset_coef * sr_host);
/* configure antennas */
if (!set_antennas()) {
@@ -298,7 +308,7 @@
goto out_close;
}
- return NORMAL;
+ return iface == MULTI_ARFCN ? MULTI_ARFCN : NORMAL;
out_close:
LOGC(DDEV, FATAL) << "Error in LMS open, closing: " << LMS_GetLastErrorMessage();