/usr/include/ns3.26/ns3/lte-rlc-um.h is in libns3-dev 3.26+dfsg-1.
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/*
* Copyright (c) 2011 Centre Tecnologic de Telecomunicacions de Catalunya (CTTC)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation;
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Author: Manuel Requena <manuel.requena@cttc.es>
*/
#ifndef LTE_RLC_UM_H
#define LTE_RLC_UM_H
#include "ns3/lte-rlc-sequence-number.h"
#include "ns3/lte-rlc.h"
#include <ns3/event-id.h>
#include <map>
namespace ns3 {
/**
* LTE RLC Unacknowledged Mode (UM), see 3GPP TS 36.322
*/
class LteRlcUm : public LteRlc
{
public:
LteRlcUm ();
virtual ~LteRlcUm ();
static TypeId GetTypeId (void);
virtual void DoDispose ();
/**
* RLC SAP
*/
virtual void DoTransmitPdcpPdu (Ptr<Packet> p);
/**
* MAC SAP
*/
virtual void DoNotifyTxOpportunity (uint32_t bytes, uint8_t layer, uint8_t harqId);
virtual void DoNotifyHarqDeliveryFailure ();
virtual void DoReceivePdu (Ptr<Packet> p);
private:
void ExpireReorderingTimer (void);
void ExpireRbsTimer (void);
bool IsInsideReorderingWindow (SequenceNumber10 seqNumber);
void ReassembleOutsideWindow (void);
void ReassembleSnInterval (SequenceNumber10 lowSeqNumber, SequenceNumber10 highSeqNumber);
void ReassembleAndDeliver (Ptr<Packet> packet);
void DoReportBufferStatus ();
private:
uint32_t m_maxTxBufferSize;
uint32_t m_txBufferSize;
std::vector < Ptr<Packet> > m_txBuffer; // Transmission buffer
std::map <uint16_t, Ptr<Packet> > m_rxBuffer; // Reception buffer
std::vector < Ptr<Packet> > m_reasBuffer; // Reassembling buffer
std::list < Ptr<Packet> > m_sdusBuffer; // List of SDUs in a packet
/**
* State variables. See section 7.1 in TS 36.322
*/
SequenceNumber10 m_sequenceNumber; // VT(US)
SequenceNumber10 m_vrUr; // VR(UR)
SequenceNumber10 m_vrUx; // VR(UX)
SequenceNumber10 m_vrUh; // VR(UH)
/**
* Constants. See section 7.2 in TS 36.322
*/
uint16_t m_windowSize;
/**
* Timers. See section 7.3 in TS 36.322
*/
EventId m_reorderingTimer;
EventId m_rbsTimer;
/**
* Reassembling state
*/
typedef enum { NONE = 0,
WAITING_S0_FULL = 1,
WAITING_SI_SF = 2 } ReassemblingState_t;
ReassemblingState_t m_reassemblingState;
Ptr<Packet> m_keepS0;
/**
* Expected Sequence Number
*/
SequenceNumber10 m_expectedSeqNumber;
};
} // namespace ns3
#endif // LTE_RLC_UM_H
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