From 69e680f980cbceef4644a68161de605b4b3ce72c Mon Sep 17 00:00:00 2001
From: Gabriel Ferreira <gabrielcarvfer@gmail.com>
Date: Fri, 18 Jul 2025 12:30:53 +0200
Subject: [PATCH] propagation: Remove ThreeGppPropagationLossModel prologue
 function

---
 .../model/three-gpp-propagation-loss-model.cc | 13 +---------
 .../model/three-gpp-propagation-loss-model.h  | 24 -------------------
 2 files changed, 1 insertion(+), 36 deletions(-)

diff --git a/src/propagation/model/three-gpp-propagation-loss-model.cc b/src/propagation/model/three-gpp-propagation-loss-model.cc
index fc6243906..2ed836356 100644
--- a/src/propagation/model/three-gpp-propagation-loss-model.cc
+++ b/src/propagation/model/three-gpp-propagation-loss-model.cc
@@ -263,9 +263,6 @@ NS_LOG_COMPONENT_DEFINE("ThreeGppPropagationLossModel");
 
 NS_OBJECT_ENSURE_REGISTERED(ThreeGppPropagationLossModel);
 
-std::function<Ptr<MobilityModel>(Ptr<const MobilityModel>, Ptr<const MobilityModel>)>
-    ThreeGppPropagationLossModel::m_doCalcRxPowerPrologueFunction;
-
 TypeId
 ThreeGppPropagationLossModel::GetTypeId()
 {
@@ -378,19 +375,11 @@ ThreeGppPropagationLossModel::IsO2iLowPenetrationLoss(Ptr<const ChannelCondition
 
 double
 ThreeGppPropagationLossModel::DoCalcRxPower(double txPowerDbm,
-                                            Ptr<MobilityModel> c,
+                                            Ptr<MobilityModel> a,
                                             Ptr<MobilityModel> b) const
 {
     NS_LOG_FUNCTION(this);
 
-    // if there is a prologue function installed, call it and replace the transmitter mobility model
-    auto a = m_doCalcRxPowerPrologueFunction ? m_doCalcRxPowerPrologueFunction(b, c) : c;
-    if (a->GetPosition() != c->GetPosition())
-    {
-        NS_LOG_DEBUG("Prologue function replaced source position "
-                     << c->GetPosition() << " with position " << a->GetPosition());
-    }
-
     // check if the model is initialized
     NS_ASSERT_MSG(m_frequency != 0.0, "First set the centre frequency");
 
diff --git a/src/propagation/model/three-gpp-propagation-loss-model.h b/src/propagation/model/three-gpp-propagation-loss-model.h
index 0b16f7d3c..3a19cf46a 100644
--- a/src/propagation/model/three-gpp-propagation-loss-model.h
+++ b/src/propagation/model/three-gpp-propagation-loss-model.h
@@ -75,26 +75,6 @@ class ThreeGppPropagationLossModel : public PropagationLossModel
      */
     bool IsO2iLowPenetrationLoss(Ptr<const ChannelCondition> cond) const;
 
-    /**
-     * @brief Stop-gap solution for wraparound model
-     *
-     * Stop-gap solution for support of wraparound model in the 5G NR module. This
-     * method was introduced for ns-3.45 but will be removed in a future release once
-     * a more general solution is added elsewhere (most likely in the spectrum channel). The
-     * callback method registered here will be executed at the beginning of DoCalcRxPower, and the
-     * returned pointer to a mobility model will be subsequently used as the (replacement) source
-     * mobility model for the rest of DoCalcRxPower() processing.
-     *
-     * @param prologueFunction Function that receives two mobility models and compute a third, based
-     * on the wrapped position of the second model in respect to the first
-     */
-    static void InstallDoCalcRxPowerPrologueFunction(
-        std::function<Ptr<MobilityModel>(Ptr<const MobilityModel>, Ptr<const MobilityModel>)>
-            prologueFunction)
-    {
-        m_doCalcRxPowerPrologueFunction = prologueFunction;
-    }
-
   private:
     /**
      * Computes the received power by applying the pathloss model described in
@@ -320,10 +300,6 @@ class ThreeGppPropagationLossModel : public PropagationLossModel
     Ptr<NormalRandomVariable>
         m_normalO2iHighLossVar; //!< a normal random variable for the calculation of 02i high loss,
                                 //!< see TR38.901 Table 7.4.3-2
-
-    /// Optional prologue function that can be used to implement wraparound models
-    static std::function<Ptr<MobilityModel>(Ptr<const MobilityModel>, Ptr<const MobilityModel>)>
-        m_doCalcRxPowerPrologueFunction;
 };
 
 /**