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lte: Adjust handover test parameters

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This commit is contained in:
Manuel Requena
2019-03-20 10:13:11 +01:00
parent 5c0b2af65d
commit e42deb49db
1 changed files with 55 additions and 8 deletions
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63
src/lte/test/test-lte-x2-handover.cc
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@@ -92,6 +92,19 @@ private:
*/
void CheckConnected (Ptr<NetDevice> ueDevice, Ptr<NetDevice> enbDevice);
/**
* Teleport UE between both eNBs of the test
* \param ueNode the UE node
*/
void TeleportUeToMiddle (Ptr<Node> ueNode);
/**
* Teleport UE near the target eNB of the handover
* \param ueNode the UE node
* \param enbNode the target eNB node
*/
void TeleportUeNearTargetEnb (Ptr<Node> ueNode, Ptr<Node> enbNode);
uint32_t m_nUes; ///< number of UEs in the test
uint32_t m_nDedicatedBearers; ///< number of UEs in the test
std::list<HandoverEvent> m_handoverEventList; ///< handover event list
@@ -229,7 +242,7 @@ LteX2HandoverTestCase::DoRun ()
positionAlloc->Add (Vector ( 3000, 0, 0)); // enb1
for (uint16_t i = 0; i < m_nUes; i++)
{
positionAlloc->Add (Vector (0, 0, 0));
positionAlloc->Add (Vector (-3000, 100, 0));
}
MobilityHelper mobility;
mobility.SetPositionAllocator (positionAlloc);
@@ -447,15 +460,31 @@ LteX2HandoverTestCase::DoRun ()
hoEventIt != m_handoverEventList.end ();
++hoEventIt)
{
// Teleport the UE between both eNBs just before the handover starts
Simulator::Schedule (hoEventIt->startTime - MilliSeconds (10),
&LteX2HandoverTestCase::TeleportUeToMiddle,
this,
ueNodes.Get (hoEventIt->ueDeviceIndex));
Simulator::Schedule (hoEventIt->startTime,
&LteX2HandoverTestCase::CheckConnected,
this,
ueDevices.Get (hoEventIt->ueDeviceIndex),
enbDevices.Get (hoEventIt->sourceEnbDeviceIndex));
m_lteHelper->HandoverRequest (hoEventIt->startTime,
ueDevices.Get (hoEventIt->ueDeviceIndex),
enbDevices.Get (hoEventIt->sourceEnbDeviceIndex),
enbDevices.Get (hoEventIt->targetEnbDeviceIndex));
// Once the handover is finished, teleport the UE near the target eNB
Simulator::Schedule (hoEventIt->startTime + MilliSeconds (40),
&LteX2HandoverTestCase::TeleportUeNearTargetEnb,
this,
ueNodes.Get (hoEventIt->ueDeviceIndex),
enbNodes.Get (m_admitHo ? hoEventIt->targetEnbDeviceIndex
: hoEventIt->sourceEnbDeviceIndex));
Time hoEndTime = hoEventIt->startTime + m_maxHoDuration;
Simulator::Schedule (hoEndTime,
&LteX2HandoverTestCase::CheckConnected,
@@ -553,6 +582,23 @@ LteX2HandoverTestCase::CheckConnected (Ptr<NetDevice> ueDevice, Ptr<NetDevice> e
NS_ASSERT_MSG (ueBearerIt == ueDataRadioBearerMapValue.End (), "too many bearers at UE");
}
void
LteX2HandoverTestCase::TeleportUeToMiddle (Ptr<Node> ueNode)
{
Ptr<MobilityModel> ueMobility = ueNode->GetObject<MobilityModel> ();
ueMobility->SetPosition (Vector (0.0, 0.0, 0.0));
}
void
LteX2HandoverTestCase::TeleportUeNearTargetEnb (Ptr<Node> ueNode, Ptr<Node> enbNode)
{
Ptr<MobilityModel> enbMobility = enbNode->GetObject<MobilityModel> ();
Vector pos = enbMobility->GetPosition ();
Ptr<MobilityModel> ueMobility = ueNode->GetObject<MobilityModel> ();
ueMobility->SetPosition (pos + Vector (0.0, 100.0, 0.0));
}
void
LteX2HandoverTestCase::SaveStatsAfterHandover (uint32_t ueIndex)
{
@@ -576,9 +622,10 @@ LteX2HandoverTestCase::CheckStatsAWhileAfterHandover (uint32_t ueIndex)
uint32_t dlRx = it->dlSink->GetTotalRx () - it->dlOldTotalRx;
uint32_t ulRx = it->ulSink->GetTotalRx () - it->ulOldTotalRx;
uint32_t expectedBytes = m_udpClientPktSize * (m_statsDuration.GetSeconds () / m_udpClientInterval.GetSeconds ());
// tolerance
NS_TEST_ASSERT_MSG_GT (dlRx, 0.500 * expectedBytes, "too few RX bytes in DL, ue=" << ueIndex << ", b=" << b);
NS_TEST_ASSERT_MSG_GT (ulRx, 0.500 * expectedBytes, "too few RX bytes in UL, ue=" << ueIndex << ", b=" << b);
float tolerance = 0.5;
NS_TEST_ASSERT_MSG_GT (dlRx, tolerance * expectedBytes, "too few RX bytes in DL, ue=" << ueIndex << ", b=" << b);
NS_TEST_ASSERT_MSG_GT (ulRx, tolerance * expectedBytes, "too few RX bytes in UL, ue=" << ueIndex << ", b=" << b);
++b;
}
}
@@ -605,19 +652,19 @@ LteX2HandoverTestSuite::LteX2HandoverTestSuite ()
// bwd means handover from enb 1 to enb 0
HandoverEvent ue1fwd;
ue1fwd.startTime = MilliSeconds (100);
ue1fwd.startTime = MilliSeconds (100);
ue1fwd.ueDeviceIndex = 0;
ue1fwd.sourceEnbDeviceIndex = 0;
ue1fwd.targetEnbDeviceIndex = 1;
HandoverEvent ue1bwd;
ue1bwd.startTime = MilliSeconds (300);
ue1bwd.startTime = MilliSeconds (400);
ue1bwd.ueDeviceIndex = 0;
ue1bwd.sourceEnbDeviceIndex = 1;
ue1bwd.targetEnbDeviceIndex = 0;
HandoverEvent ue1fwdagain;
ue1fwdagain.startTime = MilliSeconds (500);
ue1fwdagain.startTime = MilliSeconds (700);
ue1fwdagain.ueDeviceIndex = 0;
ue1fwdagain.sourceEnbDeviceIndex = 0;
ue1fwdagain.targetEnbDeviceIndex = 1;
@@ -629,7 +676,7 @@ LteX2HandoverTestSuite::LteX2HandoverTestSuite ()
ue2fwd.targetEnbDeviceIndex = 1;
HandoverEvent ue2bwd;
ue2bwd.startTime = MilliSeconds (250);
ue2bwd.startTime = MilliSeconds (350);
ue2bwd.ueDeviceIndex = 1;
ue2bwd.sourceEnbDeviceIndex = 1;
ue2bwd.targetEnbDeviceIndex = 0;