ns3::NrSpectrumValueHelper Class Reference

This class provides a set of useful functions when working with spectrum model for NR. More...

#include "nr-spectrum-value-helper.h"

Public Types
enum	PowerAllocationType { UNIFORM_POWER_ALLOCATION_USED , UNIFORM_POWER_ALLOCATION_BW }

Static Public Member Functions
static Ptr< SpectrumValue >	CreateNoisePowerSpectralDensity (double noiseFigure, const Ptr< const SpectrumModel > &spectrumModel)
	Create a SpectrumValue that models the power spectral density of AWGN.
static Ptr< SpectrumValue >	CreateTxPowerSpectralDensity (double powerTx, const std::vector< int > &rbIndexVector, const Ptr< const SpectrumModel > &txSm, enum PowerAllocationType allocationType)
	Create SpectrumValue that will represent transmit power spectral density, and assuming that all RBs are active.
static uint64_t	GetEffectiveBandwidth (double bandwidth, uint8_t numerology)
	Returns the effective bandwidth for the total system bandwidth.
static Ptr< const SpectrumModel >	GetSpectrumModel (uint32_t numRbs, double centerFrequency, double subcarrierSpacing)
	Creates or obtains from a global map a spectrum model with a given number of RBs, center frequency and subcarrier spacing.

Static Public Attributes
static const uint8_t	SUBCARRIERS_PER_RB = 12
	subcarriers per resource block

Static Protected Member Functions
static Ptr< SpectrumValue >	CreateTxPsdOverActiveRbs (double powerTx, const std::vector< int > &activeRbs, const Ptr< const SpectrumModel > &spectrumModel)
	Create SpectrumValue that will represent transmit power spectral density, and the total transmit power will be uniformly distributed only over active RBs.
static Ptr< SpectrumValue >	CreateTxPsdOverAllRbs (double powerTx, const std::vector< int > &activeRbs, const Ptr< const SpectrumModel > &spectrumModel)
	Create SpectrumValue that will represent transmit power spectral density, and the total transmit power will divided among all RBs, and then it will be assigned to active RBs.
static void	DeleteSpectrumValues ()

Detailed Description

This class provides a set of useful functions when working with spectrum model for NR.

Definition at line 20 of file nr-spectrum-value-helper.h.

Member Enumeration Documentation

PowerAllocationType

enum ns3::NrSpectrumValueHelper::PowerAllocationType

Definition at line 23 of file nr-spectrum-value-helper.h.

Member Function Documentation

CreateNoisePowerSpectralDensity()

Ptr< SpectrumValue > ns3::NrSpectrumValueHelper::CreateNoisePowerSpectralDensity ( double  noiseFigure, const Ptr< const SpectrumModel > &  spectrumModel  )

static

Create a SpectrumValue that models the power spectral density of AWGN.

Parameters

noiseFigure	the noise figure in dB w.r.t. a reference temperature of 290K
spectrumModel	the SpectrumModel instance to be used to create the output spectrum value

Returns

a pointer to a newly allocated SpectrumValue representing the noise Power Spectral Density in W/Hz for each Resource Block

Definition at line 169 of file nr-spectrum-value-helper.cc.

Referenced by ns3::NrPhy::GetNoisePowerSpectralDensity().

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CreateTxPowerSpectralDensity()

Ptr< SpectrumValue > ns3::NrSpectrumValueHelper::CreateTxPowerSpectralDensity ( double  powerTx, const std::vector< int > &  rbIndexVector, const Ptr< const SpectrumModel > &  txSm, enum PowerAllocationType  allocationType  )

static

Create SpectrumValue that will represent transmit power spectral density, and assuming that all RBs are active.

Parameters

powerTx	total power in dBm
rbIndexVector	the list of active/used RBs for the current transmission
txSm	spectrumModel to be used to create this SpectrumValue
allocationType	power allocation type to be used

Returns

spectrum value representing power spectral density for given parameters

Definition at line 149 of file nr-spectrum-value-helper.cc.

Referenced by ns3::CellScanBeamforming::GetBeamformingVectors(), ns3::CellScanQuasiOmniBeamforming::GetBeamformingVectors(), ns3::KroneckerBeamforming::GetBeamformingVectors(), ns3::KroneckerQuasiOmniBeamforming::GetBeamformingVectors(), and ns3::NrPhy::GetTxPowerSpectralDensity().

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CreateTxPsdOverActiveRbs()

Ptr< SpectrumValue > ns3::NrSpectrumValueHelper::CreateTxPsdOverActiveRbs ( double  powerTx, const std::vector< int > &  activeRbs, const Ptr< const SpectrumModel > &  spectrumModel  )

staticprotected

Create SpectrumValue that will represent transmit power spectral density, and the total transmit power will be uniformly distributed only over active RBs.

Parameters

powerTx	total power in dBm
activeRbs	vector of RBs that are active for this transmission
spectrumModel	spectrumModel to be used to create this SpectrumValue

Definition at line 107 of file nr-spectrum-value-helper.cc.

CreateTxPsdOverAllRbs()

Ptr< SpectrumValue > ns3::NrSpectrumValueHelper::CreateTxPsdOverAllRbs ( double  powerTx, const std::vector< int > &  activeRbs, const Ptr< const SpectrumModel > &  spectrumModel  )

staticprotected

Create SpectrumValue that will represent transmit power spectral density, and the total transmit power will divided among all RBs, and then it will be assigned to active RBs.

Parameters

powerTx	total power in dBm
activeRbs	vector of RBs that are active for this transmission
spectrumModel	spectrumModel to be used to create this SpectrumValue

Definition at line 128 of file nr-spectrum-value-helper.cc.

DeleteSpectrumValues()

void ns3::NrSpectrumValueHelper::DeleteSpectrumValues ( )

staticprotected

Delete SpectrumValues stored in g_nrSpectrumModelMap

Definition at line 196 of file nr-spectrum-value-helper.cc.

GetEffectiveBandwidth()

uint64_t ns3::NrSpectrumValueHelper::GetEffectiveBandwidth ( double  bandwidth, uint8_t  numerology  )

static

Returns the effective bandwidth for the total system bandwidth.

Parameters

bandwidth	the total system bandwidth in Hz
numerology	the numerology to be used over the whole bandwidth

Returns

effective bandwidth which is the sum of bandwidths of all sub-bands, in Hz

Definition at line 185 of file nr-spectrum-value-helper.cc.

Referenced by ns3::NrSpectrumPhyTestSuite::NrSpectrumPhyTestSuite().

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GetSpectrumModel()

Ptr< const SpectrumModel > ns3::NrSpectrumValueHelper::GetSpectrumModel ( uint32_t  numRbs, double  centerFrequency, double  subcarrierSpacing  )

static

Creates or obtains from a global map a spectrum model with a given number of RBs, center frequency and subcarrier spacing.

Parameters

numRbs	bandwidth in number of RBs
centerFrequency	the center frequency of this band

Returns

pointer to a spectrum model with defined characteristics

Definition at line 62 of file nr-spectrum-value-helper.cc.

Referenced by ns3::NrPhy::GetSpectrumModel().

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Member Data Documentation

SUBCARRIERS_PER_RB

const uint8_t ns3::NrSpectrumValueHelper::SUBCARRIERS_PER_RB = 12

static

subcarriers per resource block

Definition at line 29 of file nr-spectrum-value-helper.h.

Referenced by ns3::NrPhy::DoUpdateRbNum(), and ns3::NrAmc::GetPayloadSize().

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The documentation for this class was generated from the following files:

• nr-spectrum-value-helper.h
• nr-spectrum-value-helper.cc