{"id":385,"date":"2018-07-19T11:29:47","date_gmt":"2018-07-19T02:29:47","guid":{"rendered":"http:\/\/www.fatware.jp\/?page_id=385"},"modified":"2018-07-19T11:29:47","modified_gmt":"2018-07-19T02:29:47","slug":"%e3%82%bd%e3%83%bc%e3%82%b9%e8%a7%a3%e6%9e%90%ef%bc%9aue%e9%80%81%e4%bf%a1%e7%b5%8c%e8%b7%af","status":"publish","type":"page","link":"https:\/\/www.fatware.jp\/?page_id=385","title":{"rendered":"\u30bd\u30fc\u30b9\u89e3\u6790\uff1aUE\u9001\u4fe1\u7d4c\u8def"},"content":{"rendered":"

IPv4\u306e\u307f\u9001\u4fe1\u53ef\u80fd<\/p>\n

lte-ue-net-device.cc<\/cite>bool<\/span>\r\nLteUeNetDevice::Send (Ptr<Packet> packet, const<\/span> Address& dest, uint16_t<\/span> protocolNumber)\r\n{\r\n  NS_LOG_FUNCTION (this<\/span> << dest << protocolNumber);\r\n  if<\/span> (protocolNumber != Ipv4L3Protocol::PROT_NUMBER)\r\n    {\r\n      NS_LOG_INFO(\"unsupported protocol \"<\/span> << protocolNumber << \", only IPv4 is supported\"<\/span>);\r\n      return<\/span> true<\/span>;\r\n    }\r\n  return<\/span> m_nas->Send (packet);\r\n}\r\n<\/code><\/pre>\n
UE-NAS\u304cActive\u3067\u3042\u308b\u3053\u3068\u3002Classify\u306eID\u30c1\u30a7\u30c3\u30af\u304c\u3042\u308b<\/p>\n
epc-ue-nas.cc<\/cite>bool<\/span>\r\n\r\nEpcUeNas::Send (Ptr<Packet> packet)\r\n{\r\n  NS_LOG_FUNCTION (this<\/span> << packet);\r\n\r\n  switch<\/span> (m_state)\r\n    {\r\n    case<\/span> ACTIVE:\r\n      {\r\n        uint32_t<\/span> id = m_tftClassifier.Classify (packet, EpcTft::UPLINK);\r\n        NS_ASSERT ((id & 0xFFFFFF00<\/span>) == 0<\/span>);\r\n        uint8_t<\/span> bid = (uint8_t<\/span>) (id & 0x000000FF<\/span>);\r\n        if<\/span> (bid == 0<\/span>)\r\n          {\r\n            return<\/span> false<\/span>;\r\n          }\r\n        else<\/span>\r\n          {\r\n            m_asSapProvider->SendData (packet, bid);\r\n\r\n            return<\/span> true<\/span>;\r\n          }\r\n      }\r\n      break<\/span>;\r\n\r\n    default<\/span>:\r\n      NS_LOG_WARN (this<\/span> << \" NAS OFF, discarding packet\"<\/span>);\r\n      return<\/span> false<\/span>;\r\n      break<\/span>;\r\n    }\r\n}\r\n<\/code><\/pre>\n
drbdid\u306e\u30c1\u30a7\u30c3\u30af\u304c\u3042\u308b\u3002<\/p>\n
lte-ue-rrc.cc<\/cite>void<\/span>\r\nLteUeRrc::DoSendData (Ptr<Packet> packet, uint8_t<\/span> bid)\r\n{\r\n  NS_LOG_FUNCTION (this<\/span> << packet);\r\n\r\n  uint8_t<\/span> drbid = Bid2Drbid (bid);\r\n\r\n  if<\/span> (drbid != 0<\/span>)\r\n    {\r\n  std<\/span>::map<\/span><uint8_t<\/span>, Ptr<LteDataRadioBearerInfo> >::iterator it =   m_drbMap.find (drbid);\r\n  NS_ASSERT_MSG (it != m_drbMap.end (), \"could not find bearer with drbid == \"<\/span> << drbid);\r\n\r\n  LtePdcpSapProvider::TransmitPdcpSduParameters params;\r\n  params.pdcpSdu = packet;\r\n  params.rnti = m_rnti;\r\n  params.lcid = it->second->m_logicalChannelIdentity;\r\n\r\n  NS_LOG_LOGIC (this<\/span> << \" RNTI=\"<\/span> << m_rnti << \" sending packet \"<\/span> << packet\r\n                     << \" on DRBID \"<\/span> << (uint32_t<\/span>) drbid\r\n                     << \" (LCID \"<\/span> << (uint32_t<\/span>) params.lcid << \")\"<\/span>\r\n                     << \" (\"<\/span> << packet->GetSize () << \" bytes)\"<\/span>);\r\n  it->second->m_pdcp->GetLtePdcpSapProvider ()->TransmitPdcpSdu (params);\r\n    }\r\n}\r\n<\/code><\/pre>\n
lte-ue-pdcp.cc<\/cite>void\r\nLtePdcp::DoTransmitPdcpSdu (Ptr<Packet> p)\r\n{\r\n  NS_LOG_FUNCTION (this << m_rnti << (uint32_t) m_lcid << p->GetSize ());\r\n\r\n  LtePdcpHeader pdcpHeader;\r\n  pdcpHeader.SetSequenceNumber (m_txSequenceNumber);\r\n\r\n  m_txSequenceNumber++;\r\n  if (m_txSequenceNumber > m_maxPdcpSn)\r\n    {\r\n      m_txSequenceNumber = 0;\r\n    }\r\n\r\n  pdcpHeader.SetDcBit (LtePdcpHeader::DATA_PDU);\r\n\r\n  NS_LOG_LOGIC (\"PDCP header: \" << pdcpHeader);\r\n  p->AddHeader (pdcpHeader);\r\n\r\n  \/\/ Sender timestamp\r\n  PdcpTag pdcpTag (Simulator::Now ());\r\n  p->AddPacketTag (pdcpTag);\r\n  m_txPdu (m_rnti, m_lcid, p->GetSize ());\r\n\r\n  LteRlcSapProvider::TransmitPdcpPduParameters params;\r\n  params.rnti = m_rnti;\r\n  params.lcid = m_lcid;\r\n  params.pdcpPdu = p;\r\n\r\n  m_rlcSapProvider->TransmitPdcpPdu (params);\r\n}\r\n<\/code><\/pre>\n
\u30c1\u30a7\u30c3\u30af\u7121\u3057
\nRadio Link Control<\/p>\n
lte-rlc.cc<\/cite>void\r\n\r\nLteRlcSm::DoNotifyTxOpportunity (uint32_t bytes, uint8_t layer, uint8_t harqId)\r\n{\r\n  NS_LOG_FUNCTION (this << bytes);\r\n  LteMacSapProvider::TransmitPduParameters params;\r\n  params.pdu = Create<Packet> (bytes);\r\n  params.rnti = m_rnti;\r\n  params.lcid = m_lcid;\r\n  params.layer = layer;\r\n  params.harqProcessId = harqId;\r\n\r\n  \/\/ RLC Performance evaluation\r\n  RlcTag tag (Simulator::Now());\r\n  params.pdu->AddPacketTag (tag);\r\n  NS_LOG_LOGIC (\" RNTI=\" << m_rnti\r\n                << \" LCID=\" << (uint32_t) m_lcid\r\n                << \" size=\" << bytes);\r\n  m_txPdu(m_rnti, m_lcid, bytes);\r\n\r\n  m_macSapProvider->TransmitPdu (params);\r\n  ReportBufferStatus ();\r\n}\r\n<\/code><\/pre>\n
RNTI\u78ba\u8a8d
\nm_uePhySapProvider\u306b\u306f\u3001\u30dd\u30a4\u30f3\u30bf\u6e21\u3057\u3067lte-ue-phy\u306e\u30e1\u30f3\u30d0\u304c\u5165\u308b\u3002<\/p>\n
lte-ue-mac.cc<\/cite>void<\/span>\r\n\r\nLteUeMac::DoTransmitPdu (LteMacSapProvider::TransmitPduParameters params)\r\n{\r\n  NS_LOG_FUNCTION (this<\/span>);\r\n  NS_ASSERT_MSG (m_rnti == params.rnti, \"RNTI mismatch between RLC and MAC\"<\/span>);\r\n  LteRadioBearerTag tag<\/span> (params.rnti, params.lcid, 0<\/span> \/* UE works in SISO mode*\/<\/span>)<\/span><\/span>;\r\n  params.pdu->AddPacketTag (tag);\r\n  \/\/ store pdu in HARQ buffer<\/span>\r\n  m_miUlHarqProcessesPacket.at (m_harqProcessId)->AddPacket (params.pdu);\r\n  m_miUlHarqProcessesPacketTimer.at (m_harqProcessId) = HARQ_PERIOD;\r\n  m_uePhySapProvider->SendMacPdu (params.pdu);\r\n}\r\n<\/code><\/pre>\n
\u30e9\u30c3\u30d1\u30fc\u306e\u307f<\/p>\n
lte-ue-phy.cc<\/cite>void<\/span>\r\n\r\nLteUePhy::DoSendMacPdu (Ptr<Packet> p)\r\n{\r\n  NS_LOG_FUNCTION (this<\/span>);\r\n\r\n  SetMacPdu (p);\r\n}\r\n<\/code><\/pre>\n
packetBurst\u306b\u5165\u308b<\/p>\n
lte-phy.cc<\/cite>void<\/span>\r\n\r\nLtePhy::SetMacPdu (Ptr<Packet> p)\r\n{\r\n  m_packetBurstQueue.at (m_packetBurstQueue.size () - 1<\/span>)->AddPacket (p);\r\n\r\n}<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
IPv4\u306e\u307f\u9001\u4fe1\u53ef\u80fd lte-ue-net-device.ccbool LteU \u7d9a\u304d\u3092\u8aad\u3080<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":377,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-385","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.fatware.jp\/index.php?rest_route=\/wp\/v2\/pages\/385","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fatware.jp\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.fatware.jp\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.fatware.jp\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fatware.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=385"}],"version-history":[{"count":1,"href":"https:\/\/www.fatware.jp\/index.php?rest_route=\/wp\/v2\/pages\/385\/revisions"}],"predecessor-version":[{"id":386,"href":"https:\/\/www.fatware.jp\/index.php?rest_route=\/wp\/v2\/pages\/385\/revisions\/386"}],"up":[{"embeddable":true,"href":"https:\/\/www.fatware.jp\/index.php?rest_route=\/wp\/v2\/pages\/377"}],"wp:attachment":[{"href":"https:\/\/www.fatware.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=385"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}