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: Gaurav Sathe <gaurav.sathe@tcs.com>
19 */
20
21 #include "ns3/lte-helper.h"
22 #include "ns3/epc-helper.h"
23 #include "ns3/core-module.h"
24 #include "ns3/network-module.h"
25 #include "ns3/ipv4-global-routing-helper.h"
26 #include "ns3/internet-module.h"
27 #include "ns3/mobility-module.h"
28 #include "ns3/lte-module.h"
29 #include "ns3/applications-module.h"
30 #include "ns3/point-to-point-helper.h"
31 #include "ns3/config-store.h"
32 //#include "ns3/gtk-config-store.h"
33
34 using namespace ns3;
35
36 /**
37 * Sample simulation script for LTE+EPC. It instantiates one eNodeB,
38 * attaches three UE to eNodeB starts a flow for each UE to and from a remote host.
39 * It also instantiates one dedicated bearer per UE
40 */
41 NS_LOG_COMPONENT_DEFINE ("BearerDeactivateExample");
42 int
main(int argc,char * argv[])43 main (int argc, char *argv[])
44 {
45
46 uint16_t numberOfNodes = 1;
47 uint16_t numberOfUeNodes = 3;
48 double simTime = 1.1;
49 double distance = 60.0;
50 double interPacketInterval = 100;
51
52 // Command line arguments
53 CommandLine cmd (__FILE__);
54 cmd.AddValue ("numberOfNodes", "Number of eNodeBs + UE pairs", numberOfNodes);
55 cmd.AddValue ("simTime", "Total duration of the simulation [s])", simTime);
56 cmd.AddValue ("distance", "Distance between eNBs [m]", distance);
57 cmd.AddValue ("interPacketInterval", "Inter packet interval [ms])", interPacketInterval);
58 cmd.Parse (argc, argv);
59
60 Ptr<LteHelper> lteHelper = CreateObject<LteHelper> ();
61 Ptr<PointToPointEpcHelper> epcHelper = CreateObject<PointToPointEpcHelper> ();
62 lteHelper->SetEpcHelper (epcHelper);
63
64 ConfigStore inputConfig;
65 inputConfig.ConfigureDefaults ();
66
67 // parse again so you can override default values from the command line
68 cmd.Parse (argc, argv);
69
70 Ptr<Node> pgw = epcHelper->GetPgwNode ();
71
72 // Enable Logging
73 LogLevel logLevel = (LogLevel)(LOG_PREFIX_FUNC | LOG_PREFIX_TIME | LOG_LEVEL_ALL);
74
75 LogComponentEnable ("BearerDeactivateExample", LOG_LEVEL_ALL);
76 LogComponentEnable ("LteHelper", logLevel);
77 LogComponentEnable ("EpcHelper", logLevel);
78 LogComponentEnable ("EpcEnbApplication", logLevel);
79 LogComponentEnable ("EpcMmeApplication", logLevel);
80 LogComponentEnable ("EpcPgwApplication", logLevel);
81 LogComponentEnable ("EpcSgwApplication", logLevel);
82 LogComponentEnable ("LteEnbRrc", logLevel);
83
84
85 // Create a single RemoteHost
86 NodeContainer remoteHostContainer;
87 remoteHostContainer.Create (1);
88 Ptr<Node> remoteHost = remoteHostContainer.Get (0);
89 InternetStackHelper internet;
90 internet.Install (remoteHostContainer);
91
92 // Create the Internet
93 PointToPointHelper p2ph;
94 p2ph.SetDeviceAttribute ("DataRate", DataRateValue (DataRate ("100Gb/s")));
95 p2ph.SetDeviceAttribute ("Mtu", UintegerValue (1500));
96 p2ph.SetChannelAttribute ("Delay", TimeValue (Seconds (0.010)));
97 NetDeviceContainer internetDevices = p2ph.Install (pgw, remoteHost);
98 Ipv4AddressHelper ipv4h;
99 ipv4h.SetBase ("1.0.0.0", "255.0.0.0");
100 Ipv4InterfaceContainer internetIpIfaces = ipv4h.Assign (internetDevices);
101 // interface 0 is localhost, 1 is the p2p device
102 Ipv4Address remoteHostAddr = internetIpIfaces.GetAddress (1);
103
104 Ipv4StaticRoutingHelper ipv4RoutingHelper;
105 Ptr<Ipv4StaticRouting> remoteHostStaticRouting = ipv4RoutingHelper.GetStaticRouting (remoteHost->GetObject<Ipv4> ());
106 remoteHostStaticRouting->AddNetworkRouteTo (Ipv4Address ("7.0.0.0"), Ipv4Mask ("255.0.0.0"), 1);
107
108 NodeContainer ueNodes;
109 NodeContainer enbNodes;
110 enbNodes.Create (numberOfNodes);
111 ueNodes.Create (numberOfUeNodes);
112
113 // Install Mobility Model
114 Ptr<ListPositionAllocator> positionAlloc = CreateObject<ListPositionAllocator> ();
115 for (uint16_t i = 0; i < numberOfNodes; i++)
116 {
117 positionAlloc->Add (Vector (distance * i, 0, 0));
118 }
119 MobilityHelper mobility;
120 mobility.SetMobilityModel ("ns3::ConstantPositionMobilityModel");
121 mobility.SetPositionAllocator (positionAlloc);
122 mobility.Install (enbNodes);
123 mobility.Install (ueNodes);
124
125 // Install LTE Devices to the nodes
126 NetDeviceContainer enbLteDevs = lteHelper->InstallEnbDevice (enbNodes);
127 NetDeviceContainer ueLteDevs = lteHelper->InstallUeDevice (ueNodes);
128
129 // Install the IP stack on the UEs
130 internet.Install (ueNodes);
131 Ipv4InterfaceContainer ueIpIface;
132 ueIpIface = epcHelper->AssignUeIpv4Address (NetDeviceContainer (ueLteDevs));
133 // Assign IP address to UEs, and install applications
134 for (uint32_t u = 0; u < ueNodes.GetN (); ++u)
135 {
136 Ptr<Node> ueNode = ueNodes.Get (u);
137 // Set the default gateway for the UE
138 Ptr<Ipv4StaticRouting> ueStaticRouting = ipv4RoutingHelper.GetStaticRouting (ueNode->GetObject<Ipv4> ());
139 ueStaticRouting->SetDefaultRoute (epcHelper->GetUeDefaultGatewayAddress (), 1);
140 }
141
142 // Attach a UE to a eNB
143 lteHelper->Attach (ueLteDevs, enbLteDevs.Get (0));
144
145 // Activate an EPS bearer on all UEs
146
147 for (uint32_t u = 0; u < ueNodes.GetN (); ++u)
148 {
149 Ptr<NetDevice> ueDevice = ueLteDevs.Get (u);
150 GbrQosInformation qos;
151 qos.gbrDl = 132; // bit/s, considering IP, UDP, RLC, PDCP header size
152 qos.gbrUl = 132;
153 qos.mbrDl = qos.gbrDl;
154 qos.mbrUl = qos.gbrUl;
155
156 enum EpsBearer::Qci q = EpsBearer::GBR_CONV_VOICE;
157 EpsBearer bearer (q, qos);
158 bearer.arp.priorityLevel = 15 - (u + 1);
159 bearer.arp.preemptionCapability = true;
160 bearer.arp.preemptionVulnerability = true;
161 lteHelper->ActivateDedicatedEpsBearer (ueDevice, bearer, EpcTft::Default ());
162 }
163
164
165 // Install and start applications on UEs and remote host
166 uint16_t dlPort = 1234;
167 uint16_t ulPort = 2000;
168 uint16_t otherPort = 3000;
169 ApplicationContainer clientApps;
170 ApplicationContainer serverApps;
171 for (uint32_t u = 0; u < ueNodes.GetN (); ++u)
172 {
173 ++ulPort;
174 ++otherPort;
175 PacketSinkHelper dlPacketSinkHelper ("ns3::UdpSocketFactory", InetSocketAddress (Ipv4Address::GetAny (), dlPort));
176 PacketSinkHelper ulPacketSinkHelper ("ns3::UdpSocketFactory", InetSocketAddress (Ipv4Address::GetAny (), ulPort));
177 PacketSinkHelper packetSinkHelper ("ns3::UdpSocketFactory", InetSocketAddress (Ipv4Address::GetAny (), otherPort));
178 serverApps.Add (dlPacketSinkHelper.Install (ueNodes.Get (u)));
179 serverApps.Add (ulPacketSinkHelper.Install (remoteHost));
180 serverApps.Add (packetSinkHelper.Install (ueNodes.Get (u)));
181
182 UdpClientHelper dlClient (ueIpIface.GetAddress (u), dlPort);
183 dlClient.SetAttribute ("Interval", TimeValue (MilliSeconds (interPacketInterval)));
184 dlClient.SetAttribute ("MaxPackets", UintegerValue (1000000));
185
186 UdpClientHelper ulClient (remoteHostAddr, ulPort);
187 ulClient.SetAttribute ("Interval", TimeValue (MilliSeconds (interPacketInterval)));
188 ulClient.SetAttribute ("MaxPackets", UintegerValue (1000000));
189
190 UdpClientHelper client (ueIpIface.GetAddress (u), otherPort);
191 client.SetAttribute ("Interval", TimeValue (MilliSeconds (interPacketInterval)));
192 client.SetAttribute ("MaxPackets", UintegerValue (1000000));
193
194 clientApps.Add (dlClient.Install (remoteHost));
195 clientApps.Add (ulClient.Install (ueNodes.Get (u)));
196 if (u + 1 < ueNodes.GetN ())
197 {
198 clientApps.Add (client.Install (ueNodes.Get (u + 1)));
199 }
200 else
201 {
202 clientApps.Add (client.Install (ueNodes.Get (0)));
203 }
204 }
205
206 serverApps.Start (Seconds (0.030));
207 clientApps.Start (Seconds (0.030));
208
209 double statsStartTime = 0.04; // need to allow for RRC connection establishment + SRS
210 double statsDuration = 1.0;
211
212 lteHelper->EnableRlcTraces ();
213 Ptr<RadioBearerStatsCalculator> rlcStats = lteHelper->GetRlcStats ();
214 rlcStats->SetAttribute ("StartTime", TimeValue (Seconds (statsStartTime)));
215 rlcStats->SetAttribute ("EpochDuration", TimeValue (Seconds (statsDuration)));
216
217 //get ue device pointer for UE-ID 0 IMSI 1 and enb device pointer
218 Ptr<NetDevice> ueDevice = ueLteDevs.Get (0);
219 Ptr<NetDevice> enbDevice = enbLteDevs.Get (0);
220
221 /*
222 * Instantiate De-activation using Simulator::Schedule() method which will initiate bearer de-activation after deActivateTime
223 * Instantiate De-activation in sequence (Time const &time, MEM mem_ptr, OBJ obj, T1 a1, T2 a2, T3 a3)
224 */
225 Time deActivateTime (Seconds (1.5));
226 Simulator::Schedule (deActivateTime, &LteHelper::DeActivateDedicatedEpsBearer, lteHelper, ueDevice, enbDevice, 2);
227
228 //stop simulation after 3 seconds
229 Simulator::Stop (Seconds (3.0));
230
231 Simulator::Run ();
232 /*GtkConfigStore config;
233 config.ConfigureAttributes();*/
234
235 Simulator::Destroy ();
236 return 0;
237
238 }
239