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lte-phy.cc
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1 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
2 /*
3  * Copyright (c) 2010 TELEMATICS LAB, DEE - Politecnico di Bari
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: Giuseppe Piro <g.piro@poliba.it>
19  * Marco Miozzo <mmiozzo@cttc.es>
20  */
21 
22 #include <ns3/waveform-generator.h>
23 #include <ns3/object-factory.h>
24 #include <ns3/log.h>
25 #include <cmath>
26 #include <ns3/simulator.h>
27 #include "ns3/spectrum-error-model.h"
28 #include "lte-phy.h"
29 #include "lte-net-device.h"
30 
31 NS_LOG_COMPONENT_DEFINE ("LtePhy");
32 
33 namespace ns3 {
34 
35 
37  ;
38 
39 
41 {
42  NS_LOG_FUNCTION (this);
43  NS_FATAL_ERROR ("This constructor should not be called");
44 }
45 
47  : m_downlinkSpectrumPhy (dlPhy),
48  m_uplinkSpectrumPhy (ulPhy),
49  m_tti (0.001),
50  m_ulBandwidth (0),
51  m_dlBandwidth (0),
52  m_rbgSize (0),
53  m_macChTtiDelay (0),
54  m_cellId (0)
55 {
56  NS_LOG_FUNCTION (this);
57 }
58 
59 
60 TypeId
62 {
63  static TypeId tid = TypeId ("ns3::LtePhy")
64  .SetParent<Object> ()
65  ;
66  return tid;
67 }
68 
69 
71 {
72  NS_LOG_FUNCTION (this);
73 }
74 
75 void
77 {
78  NS_LOG_FUNCTION (this);
79  m_packetBurstQueue.clear ();
80  m_controlMessagesQueue.clear ();
81  m_downlinkSpectrumPhy->Dispose ();
83  m_uplinkSpectrumPhy->Dispose ();
85  m_netDevice = 0;
87 }
88 
89 void
91 {
92  NS_LOG_FUNCTION (this << d);
93  m_netDevice = d;
94 }
95 
96 
99 {
100  NS_LOG_FUNCTION (this);
101  return m_netDevice;
102 }
103 
106 {
107  return m_downlinkSpectrumPhy;
108 }
109 
112 {
113  return m_uplinkSpectrumPhy;
114 }
115 
116 
117 void
119 {
120  NS_LOG_FUNCTION (this << c);
121  m_downlinkSpectrumPhy->SetChannel (c);
122 }
123 
124 void
126 {
127  NS_LOG_FUNCTION (this << c);
128  m_uplinkSpectrumPhy->SetChannel (c);
129 }
130 
131 void
132 LtePhy::SetTti (double tti)
133 {
134  NS_LOG_FUNCTION (this << tti);
135  m_tti = tti;
136 }
137 
138 
139 double
140 LtePhy::GetTti (void) const
141 {
142  NS_LOG_FUNCTION (this << m_tti);
143  return m_tti;
144 }
145 
146 
147 uint16_t
148 LtePhy::GetSrsPeriodicity (uint16_t srcCi) const
149 {
150  // from 3GPP TS 36.213 table 8.2-1 UE Specific SRS Periodicity
151  uint16_t SrsPeriodicity[9] = {0, 2, 5, 10, 20, 40, 80, 160, 320};
152  uint16_t SrsCiLow[9] = {0, 0, 2, 7, 17, 37, 77, 157, 317};
153  uint16_t SrsCiHigh[9] = {0, 1, 6, 16, 36, 76, 156, 316, 636};
154  uint8_t i;
155  for (i = 8; i > 0; i --)
156  {
157  if ((srcCi>=SrsCiLow[i])&&(srcCi<=SrsCiHigh[i]))
158  {
159  break;
160  }
161  }
162  return SrsPeriodicity[i];
163 }
164 
165 uint16_t
166 LtePhy::GetSrsSubframeOffset (uint16_t srcCi) const
167 {
168  // from 3GPP TS 36.213 table 8.2-1 UE Specific SRS Periodicity
169  uint16_t SrsSubframeOffset[9] = {0, 0, 2, 7, 17, 37, 77, 157, 317};
170  uint16_t SrsCiLow[9] = {0, 0, 2, 7, 17, 37, 77, 157, 317};
171  uint16_t SrsCiHigh[9] = {0, 1, 6, 16, 36, 76, 156, 316, 636};
172  uint8_t i;
173  for (i = 8; i > 0; i --)
174  {
175  if ((srcCi>=SrsCiLow[i])&&(srcCi<=SrsCiHigh[i]))
176  {
177  break;
178  }
179  }
180  return (srcCi - SrsSubframeOffset[i]);
181 }
182 
183 uint8_t
184 LtePhy::GetRbgSize (void) const
185 {
186  return m_rbgSize;
187 }
188 
189 void
191 {
192  m_packetBurstQueue.at (m_packetBurstQueue.size () - 1)->AddPacket (p);
193 }
194 
197 {
198  if (m_packetBurstQueue.at (0)->GetSize () > 0)
199  {
200  Ptr<PacketBurst> ret = m_packetBurstQueue.at (0)->Copy ();
201  m_packetBurstQueue.erase (m_packetBurstQueue.begin ());
202  m_packetBurstQueue.push_back (CreateObject <PacketBurst> ());
203  return (ret);
204  }
205  else
206  {
207  m_packetBurstQueue.erase (m_packetBurstQueue.begin ());
208  m_packetBurstQueue.push_back (CreateObject <PacketBurst> ());
209  return (0);
210  }
211 }
212 
213 
214 void
216 {
217  // In uplink the queue of control messages and packet are of different sizes
218  // for avoiding TTI cancellation due to synchronization of subframe triggers
219  m_controlMessagesQueue.at (m_controlMessagesQueue.size () - 1).push_back (m);
220 }
221 
222 std::list<Ptr<LteControlMessage> >
224 {
225  NS_LOG_FUNCTION (this);
226  if (m_controlMessagesQueue.at (0).size () > 0)
227  {
228  std::list<Ptr<LteControlMessage> > ret = m_controlMessagesQueue.at (0);
230  std::list<Ptr<LteControlMessage> > newlist;
231  m_controlMessagesQueue.push_back (newlist);
232  return (ret);
233  }
234  else
235  {
237  std::list<Ptr<LteControlMessage> > newlist;
238  m_controlMessagesQueue.push_back (newlist);
239  std::list<Ptr<LteControlMessage> > emptylist;
240  return (emptylist);
241  }
242 }
243 
244 
245 void
246 LtePhy::DoSetCellId (uint16_t cellId)
247 {
248  m_cellId = cellId;
249  m_downlinkSpectrumPhy->SetCellId (cellId);
250  m_uplinkSpectrumPhy->SetCellId (cellId);
251 }
252 
253 
254 } // namespace ns3
void SetDevice(Ptr< LteNetDevice > d)
Set the device where the phy layer is attached.
Definition: lte-phy.cc:90
static TypeId GetTypeId(void)
Definition: lte-phy.cc:61
smart pointer class similar to boost::intrusive_ptr
Definition: ptr.h:59
#define NS_LOG_FUNCTION(parameters)
Definition: log.h:345
void DoSetCellId(uint16_t cellId)
Definition: lte-phy.cc:246
std::vector< Ptr< PacketBurst > > m_packetBurstQueue
Definition: lte-phy.h:231
uint16_t GetSrsPeriodicity(uint16_t srcCi) const
Definition: lte-phy.cc:148
double GetTti(void) const
Definition: lte-phy.cc:140
double m_tti
Definition: lte-phy.h:223
NS_OBJECT_ENSURE_REGISTERED(NullMessageSimulatorImpl)
Ptr< LteSpectrumPhy > m_downlinkSpectrumPhy
Definition: lte-phy.h:217
void SetUplinkChannel(Ptr< SpectrumChannel > c)
Set the uplink channel.
Definition: lte-phy.cc:125
Ptr< LteSpectrumPhy > GetUplinkSpectrumPhy()
Definition: lte-phy.cc:111
virtual void DoDispose(void)
This method is called by Object::Dispose or by the object's destructor, whichever comes first...
Definition: object.cc:336
Ptr< LteNetDevice > GetDevice()
Get the device where the phy layer is attached.
Definition: lte-phy.cc:98
#define NS_FATAL_ERROR(msg)
fatal error handling
Definition: fatal-error.h:72
uint16_t GetSrsSubframeOffset(uint16_t srcCi) const
Definition: lte-phy.cc:166
void DoDispose()
This method is called by Object::Dispose or by the object's destructor, whichever comes first...
Definition: lte-phy.cc:76
uint8_t GetRbgSize(void) const
Definition: lte-phy.cc:184
virtual ~LtePhy()
Definition: lte-phy.cc:70
void SetDownlinkChannel(Ptr< SpectrumChannel > c)
Set the downlink channel.
Definition: lte-phy.cc:118
Ptr< LteSpectrumPhy > GetDownlinkSpectrumPhy()
Definition: lte-phy.cc:105
void SetControlMessages(Ptr< LteControlMessage > m)
Definition: lte-phy.cc:215
NS_LOG_COMPONENT_DEFINE("LtePhy")
uint16_t m_cellId
Definition: lte-phy.h:235
Ptr< LteNetDevice > m_netDevice
Definition: lte-phy.h:215
std::list< Ptr< LteControlMessage > > GetControlMessages(void)
Definition: lte-phy.cc:223
Ptr< PacketBurst > GetPacketBurst(void)
Definition: lte-phy.cc:196
uint8_t m_rbgSize
Definition: lte-phy.h:226
std::vector< std::list< Ptr< LteControlMessage > > > m_controlMessagesQueue
Definition: lte-phy.h:232
a base class which provides memory management and object aggregation
Definition: object.h:63
Ptr< LteSpectrumPhy > m_uplinkSpectrumPhy
Definition: lte-phy.h:218
void SetMacPdu(Ptr< Packet > p)
Definition: lte-phy.cc:190
a unique identifier for an interface.
Definition: type-id.h:49
void SetTti(double tti)
Definition: lte-phy.cc:132
TypeId SetParent(TypeId tid)
Definition: type-id.cc:611