From 533cedb9df85225d29fdbd895f7cf66ad8fb6212 Mon Sep 17 00:00:00 2001
From: mmiozzo <unknown>
Date: Tue, 29 Mar 2011 17:20:57 +0200
Subject: [PATCH] PUSCH based UL-CQI generation at eNB PHY side

---
 src/lte/model/lte-enb-mac.cc | 20 ++++++++++++++++++++
 src/lte/model/lte-enb-mac.h  |  6 ++++++
 src/lte/model/lte-enb-phy.cc | 26 ++++++++++++++++++++++++++
 src/lte/model/lte-enb-phy.h  |  7 +++++++
 4 files changed, 59 insertions(+)

diff --git a/src/lte/model/lte-enb-mac.cc b/src/lte/model/lte-enb-mac.cc
index a0871738b..0f5dd3c90 100644
--- a/src/lte/model/lte-enb-mac.cc
+++ b/src/lte/model/lte-enb-mac.cc
@@ -471,6 +471,11 @@ LteEnbMac::DoReceiveIdealControlMessage  (Ptr<IdealControlMessage> msg)
       Ptr<DlCqiIdealControlMessage> dlcqi = DynamicCast<DlCqiIdealControlMessage> (msg);
       ReceiveDlCqiIdealControlMessage (dlcqi);
     }
+  else if (msg->GetMessageType () == IdealControlMessage::UL_CQI)
+    {
+      Ptr<UlCqiIdealControlMessage> ulcqi = DynamicCast<UlCqiIdealControlMessage> (msg);
+      ReceiveUlCqiIdealControlMessage (ulcqi);
+    }
   else if (msg->GetMessageType () == IdealControlMessage::BSR)
     {
       Ptr<BsrIdealControlMessage> bsr = DynamicCast<BsrIdealControlMessage> (msg);
@@ -495,6 +500,21 @@ LteEnbMac::ReceiveDlCqiIdealControlMessage  (Ptr<DlCqiIdealControlMessage> msg)
 }
 
 
+void
+LteEnbMac::ReceiveUlCqiIdealControlMessage  (Ptr<UlCqiIdealControlMessage> msg)
+{
+  NS_LOG_FUNCTION (this << msg);
+  
+  UlCqi_s ulcqi = msg->GetUlCqi ();
+  if (ulcqi.m_type == UlCqi_s::PUSCH)
+  {
+    NS_LOG_DEBUG(this << " eNB rxed an PUSCH UL-CQI");	
+  }
+  // TODO store UL-CQI to send them to scheduler
+  //m_dlCqiReceived.push_back (dlcqi);
+
+}
+
 void
 LteEnbMac::ReceiveBsrMessage  (MacCeListElement_s bsr)
 {
diff --git a/src/lte/model/lte-enb-mac.h b/src/lte/model/lte-enb-mac.h
index 4124d2f64..8f06d6bb3 100644
--- a/src/lte/model/lte-enb-mac.h
+++ b/src/lte/model/lte-enb-mac.h
@@ -34,6 +34,7 @@
 namespace ns3 {
 
 class DlCqiIdealControlMessage;
+class UlCqiIdealControlMessage;
 class PdcchMapIdealControlMessage;
 
 
@@ -128,6 +129,11 @@ public:
   * \param msg the DL CQI message
   */
   void ReceiveDlCqiIdealControlMessage  (Ptr<DlCqiIdealControlMessage> msg);
+  /**
+  * \brief Receive a UL CQI ideal control message
+  * \param msg the UL CQI message
+  */
+  void ReceiveUlCqiIdealControlMessage  (Ptr<UlCqiIdealControlMessage> msg);
   void DoReceiveIdealControlMessage (Ptr<IdealControlMessage> msg);
 
   /**
diff --git a/src/lte/model/lte-enb-phy.cc b/src/lte/model/lte-enb-phy.cc
index 8e472baa1..3b24b7c11 100644
--- a/src/lte/model/lte-enb-phy.cc
+++ b/src/lte/model/lte-enb-phy.cc
@@ -370,6 +370,32 @@ void
 LteEnbPhy::GenerateCqiFeedback (const SpectrumValue& sinr)
 {
   NS_LOG_FUNCTION (this << sinr);
+    Ptr<LteEnbNetDevice> thisDevice = GetDevice ()->GetObject<LteEnbNetDevice> ();
+    Ptr<UlCqiIdealControlMessage> msg = CreateUlCqiFeedbackMessage (sinr);
+    m_enbPhySapUser->ReceiveIdealControlMessage (msg);
+  
+  
+}
+
+
+Ptr<UlCqiIdealControlMessage> 
+LteEnbPhy::CreateUlCqiFeedbackMessage (const SpectrumValue& sinr)
+{
+	NS_LOG_FUNCTION (this << sinr);
+  Values::const_iterator it;
+  UlCqi_s ulcqi;
+  ulcqi.m_type = UlCqi_s::PUSCH;
+  int i = 0;
+  for (it = sinr.ConstValuesBegin (); it != sinr.ConstValuesEnd (); it++)
+  {
+    ulcqi.m_sinr.push_back ((*it));
+    NS_LOG_DEBUG(this << " RB " << i << " SINR " << (*it));
+    i++;
+  }
+  Ptr<UlCqiIdealControlMessage> msg = Create<UlCqiIdealControlMessage> ();
+  msg->SetUlCqi (ulcqi);
+  return (msg);
+	
 }
 
 };
diff --git a/src/lte/model/lte-enb-phy.h b/src/lte/model/lte-enb-phy.h
index 0f860ede2..36ee37435 100644
--- a/src/lte/model/lte-enb-phy.h
+++ b/src/lte/model/lte-enb-phy.h
@@ -98,6 +98,13 @@ public:
    * \param msg the received message
    */
   virtual void ReceiveIdealControlMessage (Ptr<IdealControlMessage> msg);
+  
+  /**
+  * \brief Create the UL CQI feedback from SINR values perceived at
+  * the physical layer with the signal received from eNB
+  * \param sinr SINR values vector
+  */
+  Ptr<UlCqiIdealControlMessage> CreateUlCqiFeedbackMessage (const SpectrumValue& sinr);
 
 
   void DoSendIdealControlMessage (Ptr<IdealControlMessage> msg);