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lte-rlc-um.h
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1 /* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
2 /*
3  * Copyright (c) 2011 Centre Tecnologic de Telecomunicacions de Catalunya (CTTC)
4  *
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License version 2 as
7  * published by the Free Software Foundation;
8  *
9  * This program is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12  * GNU General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with this program; if not, write to the Free Software
16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17  *
18  * Author: Manuel Requena <manuel.requena@cttc.es>
19  */
20 
21 #ifndef LTE_RLC_UM_H
22 #define LTE_RLC_UM_H
23 
24 #include "ns3/lte-rlc-sequence-number.h"
25 #include "ns3/lte-rlc.h"
26 
27 #include <ns3/event-id.h>
28 #include <map>
29 
30 namespace ns3 {
31 
35 class LteRlcUm : public LteRlc
36 {
37 public:
38  LteRlcUm ();
39  virtual ~LteRlcUm ();
40  static TypeId GetTypeId (void);
41  virtual void DoDispose ();
42 
46  virtual void DoTransmitPdcpPdu (Ptr<Packet> p);
47 
51  virtual void DoNotifyTxOpportunity (uint32_t bytes, uint8_t layer, uint8_t harqId);
52  virtual void DoNotifyHarqDeliveryFailure ();
53  virtual void DoReceivePdu (Ptr<Packet> p);
54 
55 private:
56  void ExpireReorderingTimer (void);
57  void ExpireRbsTimer (void);
58 
60 
61  void ReassembleOutsideWindow (void);
62  void ReassembleSnInterval (SequenceNumber10 lowSeqNumber, SequenceNumber10 highSeqNumber);
63 
64  void ReassembleAndDeliver (Ptr<Packet> packet);
65 
66  void DoReportBufferStatus ();
67 
68 private:
70  uint32_t m_txBufferSize;
71  std::vector < Ptr<Packet> > m_txBuffer; // Transmission buffer
72  std::map <uint16_t, Ptr<Packet> > m_rxBuffer; // Reception buffer
73  std::vector < Ptr<Packet> > m_reasBuffer; // Reassembling buffer
74 
75  std::list < Ptr<Packet> > m_sdusBuffer; // List of SDUs in a packet
76 
81 
85 
89  uint16_t m_windowSize;
90 
96 
100  typedef enum { NONE = 0,
105 
110 
111 };
112 
113 
114 } // namespace ns3
115 
116 #endif // LTE_RLC_UM_H
uint32_t m_maxTxBufferSize
Definition: lte-rlc-um.h:69
LTE RLC Unacknowledged Mode (UM), see 3GPP TS 36.322.
Definition: lte-rlc-um.h:35
virtual ~LteRlcUm()
Definition: lte-rlc-um.cc:49
void ReassembleAndDeliver(Ptr< Packet > packet)
Definition: lte-rlc-um.cc:587
void DoReportBufferStatus()
Definition: lte-rlc-um.cc:1111
virtual void DoTransmitPdcpPdu(Ptr< Packet > p)
RLC SAP.
Definition: lte-rlc-um.cc:84
virtual void DoNotifyHarqDeliveryFailure()
Definition: lte-rlc-um.cc:395
SequenceNumber10 m_vrUr
Definition: lte-rlc-um.h:82
SequenceNumber10 m_sequenceNumber
State variables.
Definition: lte-rlc-um.h:80
void ReassembleSnInterval(SequenceNumber10 lowSeqNumber, SequenceNumber10 highSeqNumber)
Definition: lte-rlc-um.cc:1080
SequenceNumber10 m_vrUh
Definition: lte-rlc-um.h:84
virtual void DoReceivePdu(Ptr< Packet > p)
Definition: lte-rlc-um.cc:401
SequenceNumber10 m_expectedSeqNumber
Expected Sequence Number.
Definition: lte-rlc-um.h:109
std::vector< Ptr< Packet > > m_txBuffer
Definition: lte-rlc-um.h:71
virtual void DoNotifyTxOpportunity(uint32_t bytes, uint8_t layer, uint8_t harqId)
MAC SAP.
Definition: lte-rlc-um.cc:126
static TypeId GetTypeId(void)
Definition: lte-rlc-um.cc:55
ReassemblingState_t m_reassemblingState
Definition: lte-rlc-um.h:103
Ptr< Packet > m_keepS0
Definition: lte-rlc-um.h:104
std::vector< Ptr< Packet > > m_reasBuffer
Definition: lte-rlc-um.h:73
SequenceNumber10 m_vrUx
Definition: lte-rlc-um.h:83
uint16_t m_windowSize
Constants.
Definition: lte-rlc-um.h:89
void ExpireReorderingTimer(void)
Definition: lte-rlc-um.cc:1140
std::map< uint16_t, Ptr< Packet > > m_rxBuffer
Definition: lte-rlc-um.h:72
EventId m_reorderingTimer
Timers.
Definition: lte-rlc-um.h:94
std::list< Ptr< Packet > > m_sdusBuffer
Definition: lte-rlc-um.h:75
an identifier for simulation events.
Definition: event-id.h:46
void ReassembleOutsideWindow(void)
Definition: lte-rlc-um.cc:1054
bool IsInsideReorderingWindow(SequenceNumber10 seqNumber)
Definition: lte-rlc-um.cc:564
ReassemblingState_t
Reassembling state.
Definition: lte-rlc-um.h:100
virtual void DoDispose()
This method is called by Object::Dispose or by the object's destructor, whichever comes first...
Definition: lte-rlc-um.cc:70
uint32_t m_txBufferSize
Definition: lte-rlc-um.h:70
void ExpireRbsTimer(void)
Definition: lte-rlc-um.cc:1179
EventId m_rbsTimer
Definition: lte-rlc-um.h:95
This abstract base class defines the API to interact with the Radio Link Control (LTE_RLC) in LTE...
Definition: lte-rlc.h:50
a unique identifier for an interface.
Definition: type-id.h:49