ns3::NrMacSchedulerCQIManagement Class Reference

CQI management for schedulers. More...

#include "nr-mac-scheduler-cqi-management.h"

Public Member Functions
	NrMacSchedulerCQIManagement ()=default
	NrMacSchedulerCQIManagement default constructor.
	NrMacSchedulerCQIManagement (const NrMacSchedulerCQIManagement &o)=delete
	NrMacSchedulerCQIManagement copy constructor (deleted) More...
	~NrMacSchedulerCQIManagement ()=default
	Deconstructor.
void	DlSBCQIReported (const DlCqiInfo &info, const std::shared_ptr< NrMacSchedulerUeInfo > &ueInfo) const
	SB CQI reported. More...
void	DlWBCQIReported (const DlCqiInfo &info, const std::shared_ptr< NrMacSchedulerUeInfo > &ueInfo, uint32_t expirationTime, int8_t maxDlMcs) const
	A wideband CQI has been reported for the specified UE. More...
void	InstallGetBwpIdFn (const std::function< uint16_t()> &fn)
	Install a function to retrieve the bwp id. More...
void	InstallGetCellIdFn (const std::function< uint16_t()> &fn)
	Install a function to retrieve the cell id. More...
void	InstallGetNrAmcDlFn (const std::function< Ptr< const NrAmc >()> &fn)
void	InstallGetNrAmcUlFn (const std::function< Ptr< const NrAmc >()> &fn)
void	InstallGetStartMcsDlFn (const std::function< uint8_t()> &fn)
void	InstallGetStartMcsUlFn (const std::function< uint8_t()> &fn)
void	RefreshDlCqiMaps (const std::unordered_map< uint16_t, std::shared_ptr< NrMacSchedulerUeInfo >> &m_ueMap) const
	Refresh the DL CQI for all the UE. More...
void	RefreshUlCqiMaps (const std::unordered_map< uint16_t, std::shared_ptr< NrMacSchedulerUeInfo >> &m_ueMap) const
	Refresh the UL CQI for all the UE. More...
void	UlSBCQIReported (uint32_t expirationTime, uint32_t tbs, const NrMacSchedSapProvider::SchedUlCqiInfoReqParameters &params, const std::shared_ptr< NrMacSchedulerUeInfo > &ueInfo, const std::vector< uint8_t > &rbgMask, uint32_t numRbPerRbg, const Ptr< const SpectrumModel > &model) const
	An UL SB CQI has been reported for the specified UE. More...

Detailed Description

CQI management for schedulers.

The scheduler will call either DlWBCQIReported or DlSBCQIReported to calculate a new DL MCS. For UL, only the method UlSBCQIReported is implemented, and it is a bit more complicated. For any detail, check the respective documentation.

See also

UlSBCQIReported

DlWBCQIReported

Definition at line 31 of file nr-mac-scheduler-cqi-management.h.

Constructor & Destructor Documentation

NrMacSchedulerCQIManagement()

ns3::NrMacSchedulerCQIManagement::NrMacSchedulerCQIManagement ( const NrMacSchedulerCQIManagement &  o )

delete

NrMacSchedulerCQIManagement copy constructor (deleted)

Parameters

o	other instance

Member Function Documentation

DlSBCQIReported()

void ns3::NrMacSchedulerCQIManagement::DlSBCQIReported	(	const DlCqiInfo &	info,
		const std::shared_ptr< NrMacSchedulerUeInfo > &	ueInfo
	)		const

SB CQI reported.

Parameters

info	SB CQI
ueInfo	UE

NOT IMPLEMENTED

Definition at line 25 of file nr-mac-scheduler-cqi-management.cc.

Referenced by ns3::NrMacSchedulerNs3::DoSchedDlCqiInfoReq().

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DlWBCQIReported()

void ns3::NrMacSchedulerCQIManagement::DlWBCQIReported	(	const DlCqiInfo &	info,
		const std::shared_ptr< NrMacSchedulerUeInfo > &	ueInfo,
		uint32_t	expirationTime,
		int8_t	maxDlMcs
	)		const

A wideband CQI has been reported for the specified UE.

Parameters

info	WB CQI
ueInfo	UE
expirationTime	expiration time of the CQI in number of slot
maxDlMcs	maximum DL MCS index

Store the CQI information inside the m_dlCqi value of the UE, and then calculate the corresponding MCS through NrAmc. The information is contained in the structure CqiInfo, so no need to make calculation here.

Definition at line 138 of file nr-mac-scheduler-cqi-management.cc.

References ns3::DlCqiInfo::m_optPrecMat, ns3::DlCqiInfo::m_ri, ns3::DlCqiInfo::m_wbCqi, and ns3::NrMacSchedulerUeInfo::CqiInfo::WB.

Referenced by ns3::NrMacSchedulerNs3::DoSchedDlCqiInfoReq().

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InstallGetBwpIdFn()

void ns3::NrMacSchedulerCQIManagement::InstallGetBwpIdFn

(

const std::function< uint16_t()> &

fn

)

Install a function to retrieve the bwp id.

Parameters

fn	the function

Definition at line 96 of file nr-mac-scheduler-cqi-management.cc.

Referenced by ns3::NrMacSchedulerNs3::NrMacSchedulerNs3().

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InstallGetCellIdFn()

void ns3::NrMacSchedulerCQIManagement::InstallGetCellIdFn

(

const std::function< uint16_t()> &

fn

)

Install a function to retrieve the cell id.

Parameters

fn	the function

Definition at line 103 of file nr-mac-scheduler-cqi-management.cc.

Referenced by ns3::NrMacSchedulerNs3::NrMacSchedulerNs3().

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RefreshDlCqiMaps()

void ns3::NrMacSchedulerCQIManagement::RefreshDlCqiMaps

(

const std::unordered_map< uint16_t, std::shared_ptr< NrMacSchedulerUeInfo >> &

m_ueMap

)

const

Refresh the DL CQI for all the UE.

This method should be called every slot. Decrement the validity counter DL CQI, and if a CQI expires, reset its value to the default (MCS 0)

Parameters

m_ueMap

UE map

Definition at line 171 of file nr-mac-scheduler-cqi-management.cc.

References ns3::NrMacSchedulerUeInfo::CqiInfo::WB.

Referenced by ns3::NrMacSchedulerNs3::DoSchedDlTriggerReq().

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RefreshUlCqiMaps()

void ns3::NrMacSchedulerCQIManagement::RefreshUlCqiMaps

(

const std::unordered_map< uint16_t, std::shared_ptr< NrMacSchedulerUeInfo >> &

m_ueMap

)

const

Refresh the UL CQI for all the UE.

This method should be called every slot. Decrement the validity counter UL CQI, and if a CQI expires, reset its value to the default (MCS 0)

Parameters

m_ueMap

UE map

Definition at line 194 of file nr-mac-scheduler-cqi-management.cc.

References ns3::NrMacSchedulerUeInfo::CqiInfo::WB.

Referenced by ns3::NrMacSchedulerNs3::DoSchedUlTriggerReq().

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UlSBCQIReported()

void ns3::NrMacSchedulerCQIManagement::UlSBCQIReported	(	uint32_t	expirationTime,
		uint32_t	tbs,
		const NrMacSchedSapProvider::SchedUlCqiInfoReqParameters &	params,
		const std::shared_ptr< NrMacSchedulerUeInfo > &	ueInfo,
		const std::vector< uint8_t > &	rbgMask,
		uint32_t	numRbPerRbg,
		const Ptr< const SpectrumModel > &	model
	)		const

An UL SB CQI has been reported for the specified UE.

Parameters

expirationTime	expiration time (in slot) of the CQI value
tbs	TBS of the allocation
params	parameters of the received CQI
ueInfo	UE info
rbgMask	RBG mask
numRbPerRbg	How many RB do we have per RBG
model	SpectrumModel to calculate the CQI

To calculate the UL MCS, is necessary to remember the allocation done to be able to retrieve the number of symbols and the TBS assigned. This is done inside the class NrMacSchedulerNs3, and here we assume correct parameters as input.

From a vector of SINR (along the entire band) a SpectrumValue is calculated and then passed as input to NrAmc::CreateCqiFeedbackWbTdma. From this function, we have as a result an updated value of CQI, as well as an updated version of MCS for the UL.

Definition at line 35 of file nr-mac-scheduler-cqi-management.cc.

References ns3::NrMacSchedSapProvider::SchedUlCqiInfoReqParameters::m_ulCqi, and ns3::NrMacSchedulerUeInfo::CqiInfo::SB.

Referenced by ns3::NrMacSchedulerNs3::DoSchedUlCqiInfoReq().

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

• nr-mac-scheduler-cqi-management.h
• nr-mac-scheduler-cqi-management.cc