LTE RLC Unacknowledged Mode (UM), see 3GPP TS 36.322. More...
#include <lte-rlc-um.h>
Public Member Functions | |
LteRlcUm () | |
virtual | ~LteRlcUm () |
virtual void | DoDispose () |
This method is called by Object::Dispose or by the object's destructor, whichever comes first. More... | |
virtual void | DoNotifyHarqDeliveryFailure () |
virtual void | DoNotifyTxOpportunity (uint32_t bytes, uint8_t layer, uint8_t harqId) |
MAC SAP. More... | |
virtual void | DoReceivePdu (Ptr< Packet > p) |
virtual void | DoTransmitPdcpPdu (Ptr< Packet > p) |
RLC SAP. More... | |
Public Member Functions inherited from ns3::LteRlc | |
LteRlc () | |
virtual | ~LteRlc () |
LteMacSapUser * | GetLteMacSapUser () |
LteRlcSapProvider * | GetLteRlcSapProvider () |
void | SetLcId (uint8_t lcId) |
void | SetLteMacSapProvider (LteMacSapProvider *s) |
void | SetLteRlcSapUser (LteRlcSapUser *s) |
void | SetRnti (uint16_t rnti) |
Public Member Functions inherited from ns3::Object | |
Object () | |
virtual | ~Object () |
void | AggregateObject (Ptr< Object > other) |
void | Dispose (void) |
Run the DoDispose methods of this object and all the objects aggregated to it. More... | |
AggregateIterator | GetAggregateIterator (void) const |
virtual TypeId | GetInstanceTypeId (void) const |
template<typename T > | |
Ptr< T > | GetObject (void) const |
template<typename T > | |
Ptr< T > | GetObject (TypeId tid) const |
void | Initialize (void) |
This method calls the virtual DoInitialize method on all the objects aggregated to this object. More... | |
Public Member Functions inherited from ns3::SimpleRefCount< Object, ObjectBase, ObjectDeleter > | |
SimpleRefCount () | |
Constructor. More... | |
SimpleRefCount (const SimpleRefCount &o) | |
Copy constructor. More... | |
uint32_t | GetReferenceCount (void) const |
Get the reference count of the object. More... | |
SimpleRefCount & | operator= (const SimpleRefCount &o) |
Assignment. More... | |
void | Ref (void) const |
Increment the reference count. More... | |
void | Unref (void) const |
Decrement the reference count. More... | |
Public Member Functions inherited from ns3::ObjectBase | |
virtual | ~ObjectBase () |
Virtual destructor. More... | |
void | GetAttribute (std::string name, AttributeValue &value) const |
bool | GetAttributeFailSafe (std::string name, AttributeValue &attribute) const |
void | SetAttribute (std::string name, const AttributeValue &value) |
bool | SetAttributeFailSafe (std::string name, const AttributeValue &value) |
bool | TraceConnect (std::string name, std::string context, const CallbackBase &cb) |
bool | TraceConnectWithoutContext (std::string name, const CallbackBase &cb) |
bool | TraceDisconnect (std::string name, std::string context, const CallbackBase &cb) |
bool | TraceDisconnectWithoutContext (std::string name, const CallbackBase &cb) |
Static Public Member Functions | |
static TypeId | GetTypeId (void) |
Static Public Member Functions inherited from ns3::LteRlc | |
static TypeId | GetTypeId (void) |
Static Public Member Functions inherited from ns3::Object | |
static TypeId | GetTypeId (void) |
Register this type. More... | |
Static Public Member Functions inherited from ns3::SimpleRefCount< Object, ObjectBase, ObjectDeleter > | |
static void | Cleanup (void) |
Noop. More... | |
Static Public Member Functions inherited from ns3::ObjectBase | |
static TypeId | GetTypeId (void) |
Get the type ID. More... | |
Private Types | |
enum | ReassemblingState_t { NONE = 0, WAITING_S0_FULL = 1, WAITING_SI_SF = 2 } |
Reassembling state. More... | |
Private Member Functions | |
void | DoReportBufferStatus () |
void | ExpireRbsTimer (void) |
void | ExpireReorderingTimer (void) |
bool | IsInsideReorderingWindow (SequenceNumber10 seqNumber) |
void | ReassembleAndDeliver (Ptr< Packet > packet) |
void | ReassembleOutsideWindow (void) |
void | ReassembleSnInterval (SequenceNumber10 lowSeqNumber, SequenceNumber10 highSeqNumber) |
Private Attributes | |
SequenceNumber10 | m_expectedSeqNumber |
Expected Sequence Number. More... | |
Ptr< Packet > | m_keepS0 |
uint32_t | m_maxTxBufferSize |
EventId | m_rbsTimer |
std::vector< Ptr< Packet > > | m_reasBuffer |
ReassemblingState_t | m_reassemblingState |
EventId | m_reorderingTimer |
Timers. More... | |
std::map< uint16_t, Ptr< Packet > > | m_rxBuffer |
std::list< Ptr< Packet > > | m_sdusBuffer |
SequenceNumber10 | m_sequenceNumber |
State variables. More... | |
std::vector< Ptr< Packet > > | m_txBuffer |
uint32_t | m_txBufferSize |
SequenceNumber10 | m_vrUh |
SequenceNumber10 | m_vrUr |
SequenceNumber10 | m_vrUx |
uint16_t | m_windowSize |
Constants. More... | |
Additional Inherited Members | |
Protected Member Functions inherited from ns3::Object | |
Object (const Object &o) | |
virtual void | DoInitialize (void) |
This method is called only once by Object::Initialize. More... | |
virtual void | NotifyNewAggregate (void) |
This method is invoked whenever two sets of objects are aggregated together. More... | |
Protected Member Functions inherited from ns3::ObjectBase | |
void | ConstructSelf (const AttributeConstructionList &attributes) |
virtual void | NotifyConstructionCompleted (void) |
This method is invoked once all member attributes have been initialized. More... | |
Protected Attributes inherited from ns3::LteRlc | |
uint8_t | m_lcid |
LteMacSapProvider * | m_macSapProvider |
LteMacSapUser * | m_macSapUser |
LteRlcSapProvider * | m_rlcSapProvider |
LteRlcSapUser * | m_rlcSapUser |
uint16_t | m_rnti |
TracedCallback< uint16_t, uint8_t, uint32_t, uint64_t > | m_rxPdu |
Used to inform of a PDU reception from the MAC SAP user. More... | |
TracedCallback< uint16_t, uint8_t, uint32_t > | m_txPdu |
Used to inform of a PDU delivery to the MAC SAP provider. More... | |
LTE RLC Unacknowledged Mode (UM), see 3GPP TS 36.322.
ns3::LteRlcUm is accessible through the following paths with Config::Set and Config::Connect:
No TraceSources are defined for this type.
Definition at line 35 of file lte-rlc-um.h.
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Reassembling state.
Enumerator | |
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NONE | |
WAITING_S0_FULL | |
WAITING_SI_SF |
Definition at line 100 of file lte-rlc-um.h.
ns3::LteRlcUm::LteRlcUm | ( | ) |
Definition at line 36 of file lte-rlc-um.cc.
References m_reassemblingState, NS_LOG_FUNCTION, and WAITING_S0_FULL.
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Definition at line 50 of file lte-rlc-um.cc.
References NS_LOG_FUNCTION.
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This method is called by Object::Dispose or by the object's destructor, whichever comes first.
Subclasses are expected to implement their real destruction code in an overriden version of this method and chain up to their parent's implementation once they are done. i.e., for simplicity, the destructor of every subclass should be empty and its content should be moved to the associated DoDispose method.
It is safe to call GetObject from within this method.
Reimplemented from ns3::LteRlc.
Definition at line 71 of file lte-rlc-um.cc.
References ns3::EventId::Cancel(), ns3::LteRlc::DoDispose(), m_rbsTimer, m_reorderingTimer, and NS_LOG_FUNCTION.
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MAC SAP.
Implements ns3::LteRlc.
Definition at line 127 of file lte-rlc-um.cc.
References ns3::Packet::AddAtEnd(), ns3::Packet::AddByteTag(), ns3::Packet::AddHeader(), ns3::Packet::AddPacketTag(), ns3::EventId::Cancel(), ns3::Packet::Copy(), ns3::Packet::CreateFragment(), ns3::LteRlcHeader::DATA_FIELD_FOLLOWS, ns3::LteRlcHeader::E_LI_FIELDS_FOLLOWS, ExpireRbsTimer(), ns3::LteRlcHeader::FIRST_BYTE, ns3::LteRlcSduStatusTag::FIRST_SEGMENT, ns3::LteRlcSduStatusTag::FULL_SDU, ns3::Packet::GetSize(), ns3::LteRlcSduStatusTag::GetStatus(), ns3::LteRlcHeader::LAST_BYTE, ns3::LteRlcSduStatusTag::LAST_SEGMENT, ns3::LteRlc::m_lcid, ns3::LteRlc::m_macSapProvider, m_rbsTimer, ns3::LteRlc::m_rnti, m_sequenceNumber, m_txBuffer, m_txBufferSize, ns3::LteRlc::m_txPdu, ns3::LteRlcSduStatusTag::MIDDLE_SEGMENT, ns3::LteRlcHeader::NO_FIRST_BYTE, ns3::LteRlcHeader::NO_LAST_BYTE, ns3::Simulator::Now(), NS_LOG_FUNCTION, NS_LOG_LOGIC, ns3::LteMacSapProvider::TransmitPduParameters::pdu, ns3::Packet::RemoveAtStart(), ns3::Packet::RemovePacketTag(), ns3::Simulator::Schedule(), and ns3::LteMacSapProvider::TransmitPdu().
Implements ns3::LteRlc.
Definition at line 402 of file lte-rlc-um.cc.
References ns3::EventId::Cancel(), ExpireReorderingTimer(), ns3::Packet::FindFirstMatchingByteTag(), ns3::Time::GetNanoSeconds(), ns3::Packet::GetSize(), ns3::SequenceNumber10::GetValue(), IsInsideReorderingWindow(), ns3::EventId::IsRunning(), ns3::LteRlc::m_lcid, m_reorderingTimer, ns3::LteRlc::m_rnti, m_rxBuffer, ns3::LteRlc::m_rxPdu, m_vrUh, m_vrUr, m_vrUx, m_windowSize, ns3::Simulator::Now(), NS_LOG_FUNCTION, NS_LOG_LOGIC, ns3::Packet::PeekHeader(), ReassembleOutsideWindow(), ReassembleSnInterval(), ns3::Simulator::Schedule(), and ns3::SequenceNumber10::SetModulusBase().
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Definition at line 1112 of file lte-rlc-um.cc.
References ns3::Time::GetMilliSeconds(), ns3::RlcTag::GetSenderTimestamp(), ns3::LteMacSapProvider::ReportBufferStatusParameters::lcid, ns3::LteRlc::m_lcid, ns3::LteRlc::m_macSapProvider, ns3::LteRlc::m_rnti, m_txBuffer, m_txBufferSize, ns3::Simulator::Now(), NS_LOG_LOGIC, ns3::LteMacSapProvider::ReportBufferStatus(), ns3::LteMacSapProvider::ReportBufferStatusParameters::retxQueueHolDelay, ns3::LteMacSapProvider::ReportBufferStatusParameters::retxQueueSize, ns3::LteMacSapProvider::ReportBufferStatusParameters::rnti, ns3::LteMacSapProvider::ReportBufferStatusParameters::statusPduSize, ns3::LteMacSapProvider::ReportBufferStatusParameters::txQueueHolDelay, and ns3::LteMacSapProvider::ReportBufferStatusParameters::txQueueSize.
Referenced by DoTransmitPdcpPdu(), and ExpireRbsTimer().
RLC SAP.
Store arrival time
Store PDCP PDU
Report Buffer Status
Implements ns3::LteRlc.
Definition at line 85 of file lte-rlc-um.cc.
References ns3::Packet::AddPacketTag(), ns3::EventId::Cancel(), DoReportBufferStatus(), ns3::LteRlcSduStatusTag::FULL_SDU, ns3::Packet::GetSize(), ns3::LteRlc::m_lcid, m_maxTxBufferSize, m_rbsTimer, ns3::LteRlc::m_rnti, m_txBuffer, m_txBufferSize, ns3::Simulator::Now(), NS_LOG_FUNCTION, NS_LOG_LOGIC, and ns3::LteRlcSduStatusTag::SetStatus().
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Definition at line 1180 of file lte-rlc-um.cc.
References DoReportBufferStatus(), m_rbsTimer, m_txBuffer, NS_LOG_LOGIC, and ns3::Simulator::Schedule().
Referenced by DoNotifyTxOpportunity().
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Definition at line 1141 of file lte-rlc-um.cc.
References ns3::SequenceNumber10::GetValue(), ns3::LteRlc::m_lcid, m_reorderingTimer, ns3::LteRlc::m_rnti, m_rxBuffer, m_vrUh, m_vrUr, m_vrUx, NS_LOG_FUNCTION, NS_LOG_LOGIC, ReassembleSnInterval(), and ns3::Simulator::Schedule().
Referenced by DoReceivePdu().
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Definition at line 56 of file lte-rlc-um.cc.
References m_maxTxBufferSize, and ns3::TypeId::SetParent().
Referenced by ns3::LteUeRrc::ApplyRadioResourceConfigDedicated(), and ns3::LteEnbRrc::GetRlcType().
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Definition at line 565 of file lte-rlc-um.cc.
References m_vrUh, m_windowSize, NS_LOG_FUNCTION, NS_LOG_LOGIC, and ns3::SequenceNumber10::SetModulusBase().
Referenced by DoReceivePdu(), and ReassembleOutsideWindow().
Deliver one or multiple PDUs
Deliver full PDUs
Keep S0
Discard SI or SN
Deliver zero, one or multiple PDUs
Discard SI or SN
Deliver zero, one or multiple PDUs
Keep S0
ERROR: Transition not possible
Deliver (Kept)S0 + SN
Deliver zero, one or multiple PDUs
Keep SI
Deliver (Kept)S0 + SN
Deliver zero, one or multiple PDUs
Keep S0
ERROR: Transition not possible
Deliver one or multiple PDUs
Deliver full PDUs
Keep S0
Discard SN
Deliver zero, one or multiple PDUs
Discard SI or SN
Deliver zero, one or multiple PDUs
Keep S0
ERROR: Transition not possible
Discard S0
Deliver one or multiple PDUs
Discard S0
Deliver zero, one or multiple PDUs
Keep S0
Discard S0
Discard SI or SN
Deliver zero, one or multiple PDUs
Discard S0
Discard SI or SN
Deliver zero, one or multiple PDUs
Keep S0
ERROR: Transition not possible
Definition at line 588 of file lte-rlc-um.cc.
References ns3::Packet::AddAtEnd(), ns3::Packet::CreateFragment(), ns3::LteRlcHeader::FIRST_BYTE, ns3::LteRlcHeader::GetFramingInfo(), ns3::LteRlcHeader::GetSequenceNumber(), ns3::Packet::GetSize(), ns3::LteRlcHeader::LAST_BYTE, m_expectedSeqNumber, m_keepS0, m_reassemblingState, ns3::LteRlc::m_rlcSapUser, m_sdusBuffer, ns3::LteRlcHeader::NO_FIRST_BYTE, ns3::LteRlcHeader::NO_LAST_BYTE, NS_LOG_LOGIC, ns3::LteRlcHeader::PopExtensionBit(), ns3::LteRlcHeader::PopLengthIndicator(), ns3::LteRlcSapUser::ReceivePdcpPdu(), ns3::Packet::RemoveAtStart(), ns3::Packet::RemoveHeader(), WAITING_S0_FULL, and WAITING_SI_SF.
Referenced by ReassembleOutsideWindow(), and ReassembleSnInterval().
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Definition at line 1055 of file lte-rlc-um.cc.
References IsInsideReorderingWindow(), m_rxBuffer, NS_LOG_LOGIC, and ReassembleAndDeliver().
Referenced by DoReceivePdu().
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Definition at line 1081 of file lte-rlc-um.cc.
References ns3::SequenceNumber10::GetValue(), m_rxBuffer, NS_LOG_LOGIC, and ReassembleAndDeliver().
Referenced by DoReceivePdu(), and ExpireReorderingTimer().
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Expected Sequence Number.
Definition at line 109 of file lte-rlc-um.h.
Referenced by ReassembleAndDeliver().
Definition at line 104 of file lte-rlc-um.h.
Referenced by ReassembleAndDeliver().
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Definition at line 69 of file lte-rlc-um.h.
Referenced by DoTransmitPdcpPdu(), and GetTypeId().
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Definition at line 95 of file lte-rlc-um.h.
Referenced by DoDispose(), DoNotifyTxOpportunity(), DoTransmitPdcpPdu(), and ExpireRbsTimer().
Definition at line 73 of file lte-rlc-um.h.
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Definition at line 103 of file lte-rlc-um.h.
Referenced by LteRlcUm(), and ReassembleAndDeliver().
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Timers.
See section 7.3 in TS 36.322
Definition at line 94 of file lte-rlc-um.h.
Referenced by DoDispose(), DoReceivePdu(), and ExpireReorderingTimer().
Definition at line 72 of file lte-rlc-um.h.
Referenced by DoReceivePdu(), ExpireReorderingTimer(), ReassembleOutsideWindow(), and ReassembleSnInterval().
Definition at line 75 of file lte-rlc-um.h.
Referenced by ReassembleAndDeliver().
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State variables.
See section 7.1 in TS 36.322
Definition at line 80 of file lte-rlc-um.h.
Referenced by DoNotifyTxOpportunity().
Definition at line 71 of file lte-rlc-um.h.
Referenced by DoNotifyTxOpportunity(), DoReportBufferStatus(), DoTransmitPdcpPdu(), and ExpireRbsTimer().
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Definition at line 70 of file lte-rlc-um.h.
Referenced by DoNotifyTxOpportunity(), DoReportBufferStatus(), and DoTransmitPdcpPdu().
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Definition at line 84 of file lte-rlc-um.h.
Referenced by DoReceivePdu(), ExpireReorderingTimer(), and IsInsideReorderingWindow().
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Definition at line 82 of file lte-rlc-um.h.
Referenced by DoReceivePdu(), and ExpireReorderingTimer().
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Definition at line 83 of file lte-rlc-um.h.
Referenced by DoReceivePdu(), and ExpireReorderingTimer().
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Constants.
See section 7.2 in TS 36.322
Definition at line 89 of file lte-rlc-um.h.
Referenced by DoReceivePdu(), and IsInsideReorderingWindow().