How to get a broadcast address on LTE network.

[Yutaka.M]

Hi All,

I want to get a broadcast address on LTE network.

I sent a packet from remotehost(eNB) to one UE.

But, I don't know how to get broadcast address of UEs. (line:77)

following code: 

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  // Creation ltehelper

  Ptr<LteHelper> lteHelper = CreateObject<LteHelper> ();

  // Creation epcHelper

  Ptr<PointToPointEpcHelper>  epcHelper = CreateObject<PointToPointEpcHelper> ();

  lteHelper->SetEpcHelper (epcHelper);

  // Creation epc node

  Ptr<Node> pgw = epcHelper->GetPgwNode ();

  // Create a single RemoteHost

  NodeContainer remoteHostContainer;

  remoteHostContainer.Create (1);

  Ptr<Node> remoteHost = remoteHostContainer.Get (0);

  InternetStackHelper internet;

  internet.Install (remoteHostContainer);

  // Create the Internet

  PointToPointHelper p2ph;

  p2ph.SetDeviceAttribute ("DataRate", DataRateValue (DataRate ("150Mb/s")));

  p2ph.SetDeviceAttribute ("Mtu", UintegerValue (1500));

  p2ph.SetChannelAttribute ("Delay", TimeValue (Seconds (0.010)));

  NetDeviceContainer internetDevices = p2ph.Install (pgw, remoteHost);

  Ipv4AddressHelper ipv4h;

  ipv4h.SetBase ("1.0.0.0", "255.0.0.0");

  Ipv4InterfaceContainer internetIpIfaces = ipv4h.Assign (internetDevices);

  // interface 0 is localhost, 1 is the p2p device

  //Ipv4Address remoteHostAddr = internetIpIfaces.GetAddress (1);

  Ipv4StaticRoutingHelper ipv4RoutingHelper;

  Ptr<Ipv4StaticRouting> remoteHostStaticRouting = ipv4RoutingHelper.GetStaticRouting (remoteHost->GetObject<Ipv4> ());

  remoteHostStaticRouting->AddNetworkRouteTo (Ipv4Address ("7.0.0.0"), Ipv4Mask ("255.0.0.0"), 1);

  NodeContainer enbNodes;

  enbNodes.Create(1);

  NodeContainer ueNodes;

  ueNodes.Create(3);

  // Install LTE Devices to the nodes

  NetDeviceContainer enbLteDevs = lteHelper->InstallEnbDevice (enbNodes);

  NetDeviceContainer ueLteDevs = lteHelper->InstallUeDevice (ueNodes);

  // Install the IP stack on the UEs

  internet.Install (ueNodes);

  Ipv4InterfaceContainer ueIpIface;

  ueIpIface = epcHelper->AssignUeIpv4Address (NetDeviceContainer (ueLteDevs));

  // Assign IP address to UEs, and install applications

  for (uint32_t u = 0; u < ueNodes.GetN (); ++u)

    {

      Ptr<Node> ueNode = ueNodes.Get (u);

      // Set the default gateway for the UE

      Ptr<Ipv4StaticRouting> ueStaticRouting = ipv4RoutingHelper.GetStaticRouting (ueNode->GetObject<Ipv4> ());

      ueStaticRouting->SetDefaultRoute (epcHelper->GetUeDefaultGatewayAddress (), 1);

    }

  // Attach one UE per eNodeB

  lteHelper->Attach (ueLteDevs, enbLteDevs.Get (0));

  

  // Install and start applications on UEs and remote host

  Ptr<EpcTft> tft = Create<EpcTft> ();

  EpcTft::PacketFilter pf;

  pf.localPortStart = 1234;

  pf.localPortEnd = 1234;

  tft->Add (pf);

  lteHelper->ActivateDedicatedEpsBearer (ueLteDevs, EpsBearer (EpsBearer::NGBR_VIDEO_TCP_DEFAULT), tft);

  double interPacketInterval = 1000.0;

  uint16_t dlPort = 9;

  UdpEchoServerHelper dlServer(dlPort);

  ApplicationContainer serverApps = dlServer.Install(ueNodes);

  PacketSinkHelper dlPacketSinkHelper ("ns3::UdpSocketFactory", InetSocketAddress (Ipv4Address::GetAny (), dlPort));

  serverApps.Add (dlPacketSinkHelper.Install (ueNodes));

  UdpEchoClientHelper dlClient (ueIpIface.GetAddress (0), dlPort);

  //UdpEchoClientHelper dlClient (ueIpIface.GetBroadcast (), dlPort); // I want to get broadcast address

  dlClient.SetAttribute ("Interval", TimeValue (MilliSeconds(interPacketInterval)));

  dlClient.SetAttribute ("MaxPackets", UintegerValue(1000000));

  ApplicationContainer clientApps = dlClient.Install(remoteHost);

  serverApps.Start (Seconds (0.01));

  clientApps.Start (Seconds (0.01));

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Please help me out.

Thanks

Yutaka.M

[Konstantinos]

Hi,

There is no such Broadcast address in LTE systems as in WIFI.

You will need to implement the eMBMS service https://en.wikipedia.org/wiki/Multimedia_Broadcast_Multicast_Service.

Regards,

K

[Yutaka.M]

Hi Konstantinos

Thank you for your help.

I expect the eMBMS in the future.

2017年5月2日火曜日 2時10分13秒 UTC+9 Konstantinos: