a2-a4-rsrq-handover-algorithm.h

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/*
 * Copyright (c) 2011, 2012 Centre Tecnologic de Telecomunicacions de Catalunya (CTTC)
 * Copyright (c) 2013 Budiarto Herman
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation;
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * Original work authors (from lte-enb-rrc.cc):
 * - Nicola Baldo <nbaldo@cttc.es>
 * - Marco Miozzo <mmiozzo@cttc.es>
 * - Manuel Requena <manuel.requena@cttc.es>
 *
 * Converted to handover algorithm interface by:
 * - Budiarto Herman <budiarto.herman@magister.fi>
 */
 
#ifndef A2_A4_RSRQ_HANDOVER_ALGORITHM_H
#define A2_A4_RSRQ_HANDOVER_ALGORITHM_H
 
#include <ns3/lte-handover-algorithm.h>
#include <ns3/lte-handover-management-sap.h>
#include <ns3/lte-rrc-sap.h>
#include <ns3/ptr.h>
#include <ns3/simple-ref-count.h>
 
#include <map>
 
namespace ns3
{
 
class A2A4RsrqHandoverAlgorithm : public LteHandoverAlgorithm
{
  public:
    A2A4RsrqHandoverAlgorithm();
 
    ~A2A4RsrqHandoverAlgorithm() override;
 
    static TypeId GetTypeId();
 
    // inherited from LteHandoverAlgorithm
    void SetLteHandoverManagementSapUser(LteHandoverManagementSapUser* s) override;
    LteHandoverManagementSapProvider* GetLteHandoverManagementSapProvider() override;
 
    friend class MemberLteHandoverManagementSapProvider<A2A4RsrqHandoverAlgorithm>;
 
  protected:
    // inherited from Object
    void DoInitialize() override;
    void DoDispose() override;
 
    // inherited from LteHandoverAlgorithm as a Handover Management SAP implementation
    void DoReportUeMeas(uint16_t rnti, LteRrcSap::MeasResults measResults) override;
 
  private:
    void EvaluateHandover(uint16_t rnti, uint8_t servingCellRsrq);
 
    bool IsValidNeighbour(uint16_t cellId);
 
    void UpdateNeighbourMeasurements(uint16_t rnti, uint16_t cellId, uint8_t rsrq);
 
    std::vector<uint8_t> m_a2MeasIds;
    std::vector<uint8_t> m_a4MeasIds;
 
    class UeMeasure : public SimpleRefCount<UeMeasure>
    {
      public:
        uint16_t m_cellId; 
        uint8_t m_rsrp;    
        uint8_t m_rsrq;    
    };
 
    typedef std::map<uint16_t, Ptr<UeMeasure>> MeasurementRow_t;
 
    typedef std::map<uint16_t, MeasurementRow_t> MeasurementTable_t;
 
    MeasurementTable_t m_neighbourCellMeasures;
 
    uint8_t m_servingCellThreshold;
 
    uint8_t m_neighbourCellOffset;
 
    LteHandoverManagementSapUser* m_handoverManagementSapUser;
    LteHandoverManagementSapProvider* m_handoverManagementSapProvider;
 
}; // end of class A2A4RsrqHandoverAlgorithm
 
} // end of namespace ns3
 
#endif /* A2_A4_RSRQ_HANDOVER_ALGORITHM_H */