lte-global-pathloss-database.h

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/*
 * Copyright (c) 2011,2012 Centre Tecnologic de Telecomunicacions de Catalunya (CTTC)
 *
 * SPDX-License-Identifier: GPL-2.0-only
 *
 * Author: Nicola Baldo <nbaldo@cttc.es>
 */
 
#ifndef LTE_GLOBAL_PATHLOSS_DATABASE_H
#define LTE_GLOBAL_PATHLOSS_DATABASE_H
 
#include <ns3/log.h>
#include <ns3/ptr.h>
 
#include <map>
#include <string>
 
namespace ns3
{
 
class SpectrumPhy;
 
/**
 * \ingroup lte
 *
 * Store the last pathloss value for each TX-RX pair. This is an
 * example of how the PathlossTrace (provided by some SpectrumChannel
 * implementations) work.
 *
 */
class LteGlobalPathlossDatabase
{
  public:
    virtual ~LteGlobalPathlossDatabase();
 
    /**
     * update the pathloss value
     *
     * \param context
     * \param txPhy the transmitting PHY
     * \param rxPhy the receiving PHY
     * \param lossDb the loss in dB
     */
    virtual void UpdatePathloss(std::string context,
                                Ptr<const SpectrumPhy> txPhy,
                                Ptr<const SpectrumPhy> rxPhy,
                                double lossDb) = 0;
 
    /**
     *
     *
     * \param cellId the id of the eNB
     * \param imsi the id of the UE
     *
     * \return the pathloss value between the UE and the eNB
     */
    double GetPathloss(uint16_t cellId, uint64_t imsi);
 
    /**
     * print the stored pathloss values to standard output
     *
     */
    void Print();
 
  protected:
    /**
     * List of the last pathloss value for each UE by CellId.
     * ( CELL ID,  ( IMSI,PATHLOSS ))
     */
    std::map<uint16_t, std::map<uint64_t, double>> m_pathlossMap;
};
 
/**
 * \ingroup lte
 * Store the last pathloss value for each TX-RX pair for downlink
 */
class DownlinkLteGlobalPathlossDatabase : public LteGlobalPathlossDatabase
{
  public:
    // inherited from LteGlobalPathlossDatabase
    void UpdatePathloss(std::string context,
                        Ptr<const SpectrumPhy> txPhy,
                        Ptr<const SpectrumPhy> rxPhy,
                        double lossDb) override;
};
 
/**
 * \ingroup lte
 * Store the last pathloss value for each TX-RX pair for uplink
 */
class UplinkLteGlobalPathlossDatabase : public LteGlobalPathlossDatabase
{
  public:
    // inherited from LteGlobalPathlossDatabase
    void UpdatePathloss(std::string context,
                        Ptr<const SpectrumPhy> txPhy,
                        Ptr<const SpectrumPhy> rxPhy,
                        double lossDb) override;
};
 
} // namespace ns3
 
#endif // LTE_GLOBAL_PATHLOSS_DATABASE_H