bs-net-device.h

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/*
 * Copyright (c) 2007,2008, 2009 INRIA, UDcast
 *
 * 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
 *
 * Authors: Jahanzeb Farooq <jahanzeb.farooq@sophia.inria.fr>
 *          Mohamed Amine Ismail <amine.ismail@sophia.inria.fr>
 */
 
#ifndef WIMAX_BS_NET_DEVICE_H
#define WIMAX_BS_NET_DEVICE_H
 
#include "bs-service-flow-manager.h"
#include "dl-mac-messages.h"
#include "ipcs-classifier.h"
#include "wimax-connection.h"
#include "wimax-net-device.h"
 
#include "ns3/event-id.h"
#include "ns3/ipv4-address.h"
#include "ns3/mac48-address.h"
#include "ns3/nstime.h"
 
namespace ns3
{
 
class Node;
class Packet;
class SSRecord;
class SSManager;
class BSScheduler;
class BurstProfileManager;
class BSLinkManager;
class UplinkScheduler;
class BsServiceFlowManager;
 
class BaseStationNetDevice : public WimaxNetDevice
{
  public:
    enum State
    {
        BS_STATE_DL_SUB_FRAME,
        BS_STATE_UL_SUB_FRAME,
        BS_STATE_TTG,
        BS_STATE_RTG
    };
 
    enum MacPreamble
    {
        SHORT_PREAMBLE = 1,
        LONG_PREAMBLE
    };
 
    static TypeId GetTypeId();
    BaseStationNetDevice();
    BaseStationNetDevice(Ptr<Node> node, Ptr<WimaxPhy> phy);
    BaseStationNetDevice(Ptr<Node> node,
                         Ptr<WimaxPhy> phy,
                         Ptr<UplinkScheduler> uplinkScheduler,
                         Ptr<BSScheduler> bsScheduler);
    ~BaseStationNetDevice() override;
    void SetInitialRangingInterval(Time initialRangInterval);
    void InitBaseStationNetDevice();
    Time GetInitialRangingInterval() const;
    void SetDcdInterval(Time dcdInterval);
    Time GetDcdInterval() const;
    void SetUcdInterval(Time ucdInterval);
    Time GetUcdInterval() const;
    void SetIntervalT8(Time interval);
    Time GetIntervalT8() const;
    void SetMaxRangingCorrectionRetries(uint8_t maxRangCorrectionRetries);
    uint8_t GetMaxRangingCorrectionRetries() const;
    void SetMaxInvitedRangRetries(uint8_t maxInvitedRangRetries);
    uint8_t GetMaxInvitedRangRetries() const;
    void SetRangReqOppSize(uint8_t rangReqOppSize);
    uint8_t GetRangReqOppSize() const;
    void SetBwReqOppSize(uint8_t bwReqOppSize);
    uint8_t GetBwReqOppSize() const;
    void SetNrDlSymbols(uint32_t dlSymbols);
    uint32_t GetNrDlSymbols() const;
    void SetNrUlSymbols(uint32_t ulSymbols);
    uint32_t GetNrUlSymbols() const;
    uint32_t GetNrDcdSent() const;
    uint32_t GetNrUcdSent() const;
    Time GetDlSubframeStartTime() const;
    Time GetUlSubframeStartTime() const;
    uint8_t GetRangingOppNumber() const;
    Ptr<SSManager> GetSSManager() const;
    void SetSSManager(Ptr<SSManager> ssManager);
    Ptr<UplinkScheduler> GetUplinkScheduler() const;
    void SetUplinkScheduler(Ptr<UplinkScheduler> ulScheduler);
    Ptr<BSLinkManager> GetLinkManager() const;
    void SetBSScheduler(Ptr<BSScheduler> bsSchedule);
    Ptr<BSScheduler> GetBSScheduler() const;
    void SetLinkManager(Ptr<BSLinkManager> linkManager);
    Ptr<IpcsClassifier> GetBsClassifier() const;
    void SetBsClassifier(Ptr<IpcsClassifier> classifier);
 
    Time GetPsDuration() const;
    Time GetSymbolDuration() const;
    void Start() override;
    void Stop() override;
    bool Enqueue(Ptr<Packet> packet,
                 const MacHeaderType& hdrType,
                 Ptr<WimaxConnection> connection) override;
    Ptr<WimaxConnection> GetConnection(Cid cid);
 
    void MarkUplinkAllocations();
    void MarkRangingOppStart(Time rangingOppStartTime);
    Ptr<BsServiceFlowManager> GetServiceFlowManager() const;
    void SetServiceFlowManager(Ptr<BsServiceFlowManager> sfm);
 
  private:
    void DoDispose() override;
    void StartFrame();
    void StartDlSubFrame();
    void EndDlSubFrame();
    void StartUlSubFrame();
    void EndUlSubFrame();
    void EndFrame();
    bool DoSend(Ptr<Packet> packet,
                const Mac48Address& source,
                const Mac48Address& dest,
                uint16_t protocolNumber) override;
    void DoReceive(Ptr<Packet> packet) override;
    void CreateMapMessages();
    void CreateDescriptorMessages(bool sendDcd, bool sendUcd);
    void SendBursts();
 
    Ptr<Packet> CreateDlMap();
    Ptr<Packet> CreateDcd();
    Ptr<Packet> CreateUlMap();
    Ptr<Packet> CreateUcd();
    void SetDlBurstProfiles(Dcd* dcd);
    void SetUlBurstProfiles(Ucd* ucd);
 
    void MarkUplinkAllocationStart(Time allocationStartTime);
    void MarkUplinkAllocationEnd(Time allocationEndTime, Cid cid, uint8_t uiuc);
    void UplinkAllocationStart();
    void UplinkAllocationEnd(Cid cid, uint8_t uiuc);
    void RangingOppStart();
 
    // parameters defined in Table 342
    Time m_initialRangInterval; 
    Time m_dcdInterval;         
    Time m_ucdInterval;         
    Time m_intervalT8;          
 
    uint8_t m_maxRangCorrectionRetries; 
    uint8_t m_maxInvitedRangRetries;    
    uint8_t m_rangReqOppSize;           
    uint8_t m_bwReqOppSize;             
 
    uint32_t m_nrDlSymbols; 
    uint32_t m_nrUlSymbols; 
 
    // to keep track total number of a certain management messages sent by the BS
    uint32_t m_nrDlMapSent; 
    uint32_t m_nrUlMapSent; 
    // number of DCDs and UCDs sent even if same
    uint32_t m_nrDcdSent; 
    uint32_t m_nrUcdSent; 
 
    uint32_t m_dcdConfigChangeCount; 
    uint32_t m_ucdConfigChangeCount; 
 
    uint32_t m_framesSinceLastDcd; 
    uint32_t m_framesSinceLastUcd; 
 
    // uint32_t m_nrFrames; //temporarily defined in wimax-net-device, as static
    uint32_t m_nrDlFrames; 
    uint32_t m_nrUlFrames; 
 
    // to keep track if number of SSs have changed since the last frame
    uint16_t m_nrSsRegistered; 
 
    uint16_t m_nrDlAllocations; 
    uint16_t m_nrUlAllocations; 
 
    Time m_dlSubframeStartTime; 
    Time m_ulSubframeStartTime; 
 
    uint8_t m_ulAllocationNumber; 
    uint8_t m_rangingOppNumber;   
 
    CidFactory* m_cidFactory; 
 
    uint32_t m_allocationStartTime; 
 
    Ptr<SSManager> m_ssManager;                     
    Ptr<UplinkScheduler> m_uplinkScheduler;         
    Ptr<BSScheduler> m_scheduler;                   
    Ptr<BSLinkManager> m_linkManager;               
    Ptr<IpcsClassifier> m_bsClassifier;             
    Ptr<BsServiceFlowManager> m_serviceFlowManager; 
    // same fields as in PHY, for quick access
    Time m_psDuration;     
    Time m_symbolDuration; 
 
    TracedCallback<Ptr<const Packet>, Mac48Address, Cid>
        m_traceBSRx; 
 
    TracedCallback<Ptr<const Packet>> m_bsTxTrace; 
 
    TracedCallback<Ptr<const Packet>>
        m_bsTxDropTrace; 
 
    TracedCallback<Ptr<const Packet>>
        m_bsPromiscRxTrace; 
 
    TracedCallback<Ptr<const Packet>> m_bsRxTrace; 
 
    TracedCallback<Ptr<const Packet>> m_bsRxDropTrace; 
};
 
} // namespace ns3
 
#endif /* WIMAX_BS_NET_DEVICE_H */