/**

  /**

   * \param originator Address of peer participating in Block Ack mechanism.

   * \param originator Address of peer participating in Block Ack mechanism.

   * \param tid TID for which Block Ack was created.

   * \param tid TID for which Block Ack was created.

   *

   *

   * This function forward up all completed "old" packets with sequence number

   * This function forward up all completed "old" packets with sequence number

   * smaller than <i>seq</i>. All comparison are performed circularly mod 4096.

   * smaller than <i>seq</i>. All comparison are performed circularly mod 4096.

              NS_LOG_DEBUG ("rx QoS unicast/sendAck from=" << hdr.GetAddr2 ());

              NS_LOG_DEBUG ("rx QoS unicast/sendAck from=" << hdr.GetAddr2 ());

              AgreementsI it = m_bAckAgreements.find (std::make_pair (hdr.GetAddr2 (), hdr.GetQosTid ()));

              AgreementsI it = m_bAckAgreements.find (std::make_pair (hdr.GetAddr2 (), hdr.GetQosTid ()));

                                                            hdr.GetAddr2 (), hdr.GetQosTid ());

                                                            hdr.GetAddr2 (), hdr.GetQosTid ());

              RxCompleteBufferedPacketsUntilFirstLost (hdr.GetAddr2 (), hdr.GetQosTid ());

              RxCompleteBufferedPacketsUntilFirstLost (hdr.GetAddr2 (), hdr.GetQosTid ());

              NS_ASSERT (m_sendAckEvent.IsExpired ());

              NS_ASSERT (m_sendAckEvent.IsExpired ());

                     int16_t bufferSize = (*it).second.first.GetBufferSize ();

                     int16_t bufferSize = (*it).second.first.GetBufferSize ();

                     uint16_t sum = ((uint16_t)(std::abs(winEnd - bufferSize + 1))) % 4096;

                     uint16_t sum = ((uint16_t)(std::abs(winEnd - bufferSize + 1))) % 4096;

                     (*it).second.first.SetStartingSequence (sum);

                     (*it).second.first.SetStartingSequence (sum);

                   } 

                   } 

               }

               }

              RxCompleteBufferedPacketsUntilFirstLost (originator, tid); //forwards up packets starting from winstart and set winstart to last +1

              RxCompleteBufferedPacketsUntilFirstLost (originator, tid); //forwards up packets starting from winstart and set winstart to last +1

  AgreementsI it = m_bAckAgreements.find (std::make_pair (originator, tid));

  AgreementsI it = m_bAckAgreements.find (std::make_pair (originator, tid));

  if (it != m_bAckAgreements.end ())

  if (it != m_bAckAgreements.end ())

    {

    {

      RxCompleteBufferedPacketsUntilFirstLost (originator, tid);

      RxCompleteBufferedPacketsUntilFirstLost (originator, tid);

      m_bAckAgreements.erase (it);

      m_bAckAgreements.erase (it);

        }

        }

      BufferedPacketI i = (*it).second.second.begin ();

      BufferedPacketI i = (*it).second.second.begin ();

      for (; i != (*it).second.second.end ()

      for (; i != (*it).second.second.end ()

        {

        {

          if (guard == (*i).second.GetSequenceControl ())

          if (guard == (*i).second.GetSequenceControl ())

            {

            {

              /* All packets with smaller sequence than starting sequence control must be passed up to Wifimac

              /* All packets with smaller sequence than starting sequence control must be passed up to Wifimac

               * See 9.10.3 in IEEE 802.11e standard.

               * See 9.10.3 in IEEE 802.11e standard.

               */

               */

              RxCompleteBufferedPacketsUntilFirstLost (originator, tid);

              RxCompleteBufferedPacketsUntilFirstLost (originator, tid);

            }

            }

          else

          else

                { 

                { 

                  (*it).second.first.SetStartingSequence(reqHdr.GetStartingSequence ());

                  (*it).second.first.SetStartingSequence(reqHdr.GetStartingSequence ());

                  (*it).second.first.SetWinEnd(((*it).second.first.GetStartingSequence()+(*it).second.first.GetBufferSize()-1) % 4096);

                  (*it).second.first.SetWinEnd(((*it).second.first.GetStartingSequence()+(*it).second.first.GetBufferSize()-1) % 4096);

                  RxCompleteBufferedPacketsUntilFirstLost (originator, tid);

                  RxCompleteBufferedPacketsUntilFirstLost (originator, tid);

                  (*it).second.first.SetWinEnd(((*it).second.first.GetStartingSequence()+(*it).second.first.GetBufferSize()-1) % 4096);

                  (*it).second.first.SetWinEnd(((*it).second.first.GetStartingSequence()+(*it).second.first.GetBufferSize()-1) % 4096);

                }

                }