""""""
import functools
import nirfmxlte.attributes as attributes
import nirfmxlte.errors as errors
import nirfmxlte.internal._helper as _helper
def _raise_if_disposed(f):
"""From https://stackoverflow.com/questions/5929107/decorators-with-parameters."""
@functools.wraps(f)
def aux(*xs, **kws):
meas_obj = xs[0] # parameter 0 is 'self' which is the measurement object
if meas_obj._signal_obj.is_disposed:
raise Exception("Cannot access a disposed Lte signal configuration")
return f(*xs, **kws)
return aux
[docs]
class ChpComponentCarrierResults(object):
""""""
def __init__(self, signal_obj):
""""""
self._signal_obj = signal_obj
self._session_function_lock = signal_obj._session_function_lock
self._interpreter = signal_obj._interpreter
[docs]
@_raise_if_disposed
def get_absolute_power(self, selector_string):
r"""Gets the power measured over the integration bandwidth of the component carrier. This value is expressed in dBm.
Use "carrier<*k*>" or "subblock<*n*>/carrier<*k*>" as the selector string to read this result.
Args:
selector_string (string):
Pass an empty string.
Returns:
Tuple (attr_val, error_code):
attr_val (float):
Returns the power measured over the integration bandwidth of the component carrier. This value is expressed in dBm.
error_code (int):
Returns the status code of this method. The status code either indicates success or describes a warning condition.
"""
try:
self._session_function_lock.enter_read_lock()
updated_selector_string = _helper.validate_and_update_selector_string(
selector_string, self._signal_obj
)
attr_val, error_code = self._interpreter.get_attribute_f64(
updated_selector_string,
attributes.AttributeID.CHP_RESULTS_COMPONENT_CARRIER_ABSOLUTE_POWER.value,
)
finally:
self._session_function_lock.exit_read_lock()
return attr_val, error_code
[docs]
@_raise_if_disposed
def get_relative_power(self, selector_string):
r"""Gets the component carrier power relative to its subblock power. This value is expressed in dB.
Use "carrier<*k*>" or "subblock<*n*>/carrier<*k*>" as the selector string to read this result.
Args:
selector_string (string):
Pass an empty string.
Returns:
Tuple (attr_val, error_code):
attr_val (float):
Returns the component carrier power relative to its subblock power. This value is expressed in dB.
error_code (int):
Returns the status code of this method. The status code either indicates success or describes a warning condition.
"""
try:
self._session_function_lock.enter_read_lock()
updated_selector_string = _helper.validate_and_update_selector_string(
selector_string, self._signal_obj
)
attr_val, error_code = self._interpreter.get_attribute_f64(
updated_selector_string,
attributes.AttributeID.CHP_RESULTS_COMPONENT_CARRIER_RELATIVE_POWER.value,
)
finally:
self._session_function_lock.exit_read_lock()
return attr_val, error_code
[docs]
@_raise_if_disposed
def fetch_measurement_array(self, selector_string, timeout):
r"""Returns an array of the absolute and relative powers measured in the component carriers. The relative power is relative
to subblock power.
Use "subblock<*n*>" as the selector string to read results from this method.
Args:
selector_string (string):
This parameter specifies a `Selector String
<https://www.ni.com/docs/en-US/bundle/rfmx/page/selector-strings-net.html>`_ comprising of result
name, and subblock number.
Example:
"subblock0"
"result::r1/subblock0"
You can use the :py:meth:`build_subblock_string` method to build the selector string.
timeout (float):
This parameter specifies the timeout for fetching the specified measurement. This value is expressed in seconds. Set
this value to an appropriate time, longer than expected for fetching the measurement. A value of -1 specifies that the
method waits until the measurement is complete. The default value is 10.
Returns:
Tuple (absolute_power, relative_power, error_code):
absolute_power (float):
This parameter returns the array of powers measured over the integration bandwidths of the carriers. The carrier power
is reported in dBm when you set the :py:attr:`~nirfmxlte.attributes.AttributeID.ACP_POWER_UNITS` attribute to **dBm**,
and in dBm/Hz when you set the ACP Pwr Units attribute to **dBm/Hz**.
relative_power (float):
This parameter returns the array of component carrier powers relative to their subblock powers measured over the
integration bandwidths of the component carriers in the subblock. This value is expressed in dB.
error_code (int):
Returns the status code of this method. The status code either indicates success or describes a warning condition.
"""
try:
self._session_function_lock.enter_read_lock()
_helper.validate_not_none(selector_string, "selector_string")
updated_selector_string = _helper.validate_and_update_selector_string(
selector_string, self._signal_obj
)
absolute_power, relative_power, error_code = (
self._interpreter.chp_fetch_measurement_array(updated_selector_string, timeout)
)
finally:
self._session_function_lock.exit_read_lock()
return absolute_power, relative_power, error_code
[docs]
@_raise_if_disposed
def fetch_measurement(self, selector_string, timeout):
r"""Returns the absolute and relative powers measured in the component carriers. The relative power is relative to subblock
power.
Use "carrier<*k*>" or "subblock<*n*>/carrier<*k*>" as the selector string to read results from this method.
Args:
selector_string (string):
This parameter specifies a `Selector String
<https://www.ni.com/docs/en-US/bundle/rfmx/page/selector-strings-net.html>`_ comprising of result
name, subblock number, and carrier number.
Example:
"subblock0/carrier0"
"result::r1/subblock0/carrier0"
You can use the :py:meth:`build_carrier_string` method to build the selector string.
timeout (float):
This parameter specifies the timeout for fetching the specified measurement. This value is expressed in seconds. Set
this value to an appropriate time, longer than expected for fetching the measurement. A value of -1 specifies that the
method waits until the measurement is complete. The default value is 10.
Returns:
Tuple (absolute_power, relative_power, error_code):
absolute_power (float):
This parameter returns the power measured over the integration bandwidth of the carrier. The carrier power is reported
in dBm when you set the :py:attr:`~nirfmxlte.attributes.AttributeID.ACP_POWER_UNITS` attribute to **dBm**, and in
dBm/Hz when you set the ACP Pwr Units attribute to **dBm/Hz**.
relative_power (float):
This parameter returns the component carrier power relative to its subblock power. This value is expressed in dB.
error_code (int):
Returns the status code of this method. The status code either indicates success or describes a warning condition.
"""
try:
self._session_function_lock.enter_read_lock()
_helper.validate_not_none(selector_string, "selector_string")
updated_selector_string = _helper.validate_and_update_selector_string(
selector_string, self._signal_obj
)
absolute_power, relative_power, error_code = self._interpreter.chp_fetch_measurement(
updated_selector_string, timeout
)
finally:
self._session_function_lock.exit_read_lock()
return absolute_power, relative_power, error_code