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[LTE] LTE信令附着与切换分析 [复制链接]

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发表于 2015-1-30 10:56:07 |只看该作者 |倒序浏览

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【资料名称】：LTE信令分析

【资料作者】：无名

【资料日期】：20140104

【资料语言】：中文

【资料格式】：DOC/DOCX

【资料目录和简介】：

LTE信令分析和attach信令分析流程，切换流程，

1.1.1 E-UTRAN初始附着过程

1.1.2 切换过程

部分内容如下：

说明：
1) 步骤1～5会建立RRC连接，步骤6、9会建立S1连接，完成这些过程即标志着NAS signalling connection建立完成。
2) 消息7的说明：UE刚开机第一次attach，使用的IMSI，无Identity过程；后续，如果有有效的GUTI，使用GUTI attach，核心网才会发起Identity过程（为上下行直传消息）。
3) 消息10~12的说明：如果消息9带了UE Radio Capability IE，则eNB不会发送UECapabilityEnquiry消息给UE，即没有10~12过程；否则会发送，UE上报无线能力信息后，eNB再发UE Capability Info Indication，给核心网上报UE的无线能力信息。
 为了减少空口开销，在IDLE下MME会保存UE Radio Capability信息，在INITIAL CONTEXT SETUP REQUEST消息会带给eNB，除非UE在执行attach或者"first TAU following GERAN/UTRAN Attach" or "UE radio capability update" TAU过程（也就是这些过程MME不会带UE Radio Capability信息给eNB，并会把本地保存的UE Radio Capability信息删除，eNB会问UE要能力信息，并报给MME。注："UE radio capability update" TAU is only supported for changes of GERAN and UTRAN radio capabilities in ECM-IDLE.）。
 在CONNECTED下，eNB会一直保存UE Radio Capability信息。
 UE的E_UTRAN无线能力信息如果发生改变，需要先detach，再attach。
4) 发起UE上下文释放（即21～25）的条件：
eNodeB-initiated with cause e.g. O&M Intervention, Unspecified Failure, User Inactivity, Repeated RRC signalling Integrity Check Failure, Release due to UE generated signalling connection release, etc.; or MME-initiated with cause e.g. authentication failure, detach, etc.
5) eNB收到msg3以后，DCM给USM配置SRB1，配置完后发送msg4给UE；eNB在发送RRCConnectionReconfiguration前，DCM先给USM配置DRB/SRB2等信息，配置完后发送RRCConnectionReconfiguration给UE，收到RRCConnectionReconfigurationComplete后，控制面再通知用户面资源可用。
6) 消息13~15的说明：eNB发送完消息13，并不需要等收到消息14，就直接发送消息15。
7) 如果发起IMSI attach时，UE的IMSI与另外一个UE的IMSI重复，并且其他UE已经attach，则核心网会释放先前的UE。如果IMSI中的MNC与核心网配置的不一致，则核心网会回复attach reject。
8) 消息9的说明：该消息为MME向eNB发起的初始上下文建立请求，请求eNB建立承载资源，同时带安全上下文，可能带用户无线能力、切换限制列表等参数。UE的安全能力参数是通过attach request消息带给核心网的，核心网再通过该消息送给eNB。UE的网络能力（安全能力）信息改变的话，需要发起TAU。

2、消息解析
（1）MasterInformationBlock（主信息块）
RRC: MasterInformationBlock
Message type: BCCH_BCH
Direction: Downlink
Frame No: 1020
Subframe No: 4
Computer Timestamp: 17:23:26.843
BCCH-BCH-Message
message
  dl-Bandwidth : n100（下行带宽，目前配置为100PRB，20MHz带宽）
  phich-Config
phich-Duration : normal（PHICH持续时间）
phich-Resource : half（PHICH资源大小，Ng配置为1/2即可保证PHICH资源够用，一般系统内的资源占用率不会到100%，上行单次传输平均占用的资源块数也可能比较大，此时一个PHICH组内实际占用的资源数会比较小，能够保证传输性能。）
  systemFrameNumber : 0xFF
  spare : 0x0000
（2）SysInfoType1（系统信息块1）
RRC: SysInfoType1
Message type: BCCH_SCH
Direction: Downlink
Frame No: 1022
Subframe No: 7
Computer Timestamp: 17:23:26.843
BCCH-DL-SCH-Message
message
  c1
systemInformationBlockType1
cellAccessRelatedInfo
   plmn-IdentityList
   PLMN-IdentityInfo
   plmn-Identity
      mcc
      MCC-MNC-Digit : 4
      MCC-MNC-Digit : 6
      MCC-MNC-Digit : 0
      mnc
      MCC-MNC-Digit : 0
      MCC-MNC-Digit : 0
   cellReservedForOperatorUse : notReserved
   trackingAreaCode : 0x0200（小区所属跟踪区的ID）
   cellIdentity : 0x00099020
   cellBarred : notBarred
   intraFreqReselection : allowed
   csg-Indication : false
cellSelectionInfo
   q-RxLevMin : -60（小区重选最小信道要求，目前配置为-60dBm）
p-Max : 23（UE最大发射功率，目前配置为23dBm）
freqBandIndicator : 38（E-UTRA工作频段，38指2570Mhz-2620Mhz）
schedulingInfoList
   SchedulingInfo
   si-Periodicity : rf32
   sib-MappingInfo
   sibType3
   sibType4
tdd-Config
   subframeAssignment : sa1（上下行子帧配置，sa1指2U2D）
   specialSubframePatterns : ssp7（特殊子帧配置，ssp7指10：2 :2）
si-WindowLength : ms10
systemInfoValueTag : 0
（3）SysInfo（系统信息块）
RRC: SysInfo
Message type: BCCH_SCH
Direction: Downlink
Frame No: 0
Subframe No: 5
Computer Timestamp: 17:23:26.843
BCCH-DL-SCH-Message
message
  c1
systemInformation
criticalExtensions
   systemInformation-r8
   sib-TypeAndInfo
   sib2
      radioResourceConfigCommon
      rach-ConfigCommon
      preambleInfo
         numberOfRA-Preambles : n48（竞争前导码数量，预留48个Preamble码用于竞争随机接入）
         preamblesGroupAConfig
         sizeOfRA-PreamblesGroupA : n48
         messageSizeGroupA : b56
         messagePowerOffsetGroupB : dB8
      powerRampingParameters
         powerRampingStep : dB2
         preambleInitialReceivedTargetPower : dBm-106
      ra-SupervisionInfo
         preambleTransMax : n4
         ra-ResponseWindowSize : sf10
         mac-ContentionResolutionTimer : sf48
      maxHARQ-Msg3Tx : 4
      bcch-Config
      modificationPeriodCoeff : n4
      pcch-Config
      defaultPagingCycle : rf64
      nB : halfT
      prach-Config
      rootSequenceIndex : 24（前导码根序列逻辑索引，当采用Preamble Format0~3时，ZC根序列的选择与当前小区是否为高速小区有关，当采用Preamble Format0~3且为高速小区时，RootSeqIndex的取值与Ncs有关，Preamble格式影响RootSeqIndex的取值范围以及选择原则）
      prach-ConfigInfo
         prach-ConfigIndex : 3
         highSpeedFlag : false
         zeroCorrelationZoneConfig : 3
         prach-FreqOffset : 17
      pdsch-ConfigCommon
      referenceSignalPower : 15（小区参考信号功率，15对应全带宽等效总功率45.79dBm）
      p-b : 1（无CRS的OFDM符号上的数据RE与有CRS的OFDM符号上数据RE的能量之比，一般取1，即功率比为1：1）
      pusch-ConfigCommon
      pusch-ConfigBasic
         n-SB : 4
         hoppingMode : interSubFrame
         pusch-HoppingOffset : 33
         enable64QAM : true
      ul-ReferenceSignalsPUSCH
         groupHoppingEnabled : false
         groupAssignmentPUSCH : 0
         sequenceHoppingEnabled : false
         cyclicShift : 0
      pucch-ConfigCommon
      deltaPUCCH-Shift : ds2
      nRB-CQI : 2
      nCS-AN : 0
      n1PUCCH-AN : 36
      soundingRS-UL-ConfigCommon
      setup
         srs-BandwidthConfig : bw0
         srs-SubframeConfig : sc0
         ackNackSRS-SimultaneousTransmission : true
         srs-MaxUpPts : true
      uplinkPowerControlCommon
      p0-NominalPUSCH : -85（持续调度期望接收功率，根据需要随时修改）
      alpha : al1
      p0-NominalPUCCH : -112（PUCCH期望功率，根据需要随时修改）
      deltaFList-PUCCH
         deltaF-PUCCH-Format1 : deltaF0
         deltaF-PUCCH-Format1b : deltaF1
         deltaF-PUCCH-Format2 : deltaF0
         deltaF-PUCCH-Format2a : deltaF2
         deltaF-PUCCH-Format2b : deltaF2
      deltaPreambleMsg3 : 4
      ul-CyclicPrefixLength : len1
      ue-TimersAndConstants
      t300 : ms2000（T300定时器时长，当UE发送RRC CONNECTION REQUEST消息后启动T300定时器，当收到RRC CONNECTION SETUP消息后停止T300定时器。一旦超时，若RRC CONNECTION REQUEST消息重发次数小于常量N300则重发RRC CONNECTION REQUEST，否则进入空闲模式。T300的设置应结合UE、UTRAN处理时延以及传播时延考虑，T300设置越大，UE等待时间越长。N300设置越大，RRC连接成功建立的可能性越高，同时用于RRC建立的时间也可能越长，有可能出现某个UE反复尝试接入和发送连接建立请求，而对其它用户造成较强干扰的情况。）
      t301 : ms600（用户摘机定时器）
      t310 : ms2000
      n310 : n20
      t311 : ms1000
      n311 : n1
      freqInfo
      additionalSpectrumEmission : 1
      timeAlignmentTimerCommon : infinity
   sib3
      cellReselectionInfoCommon
      q-Hyst : dB2
      cellReselectionServingFreqInfo
      s-NonIntraSearch : 2
      threshServingLow : 0
      cellReselectionPriority : 3
      intraFreqCellReselectionInfo
      q-RxLevMin : -53
      p-Max : 23（UE最大发射功率，目前配置为23dBm）
      s-IntraSearch : 3
      allowedMeasBandwidth : mbw6
      presenceAntennaPort1 : true
      neighCellConfig : 0x40
      t-ReselectionEUTRA : 3
   sib4
      intraFreqNeighCellList
      IntraFreqNeighCellInfo
      physCellId : 0
      q-OffsetCell : dB0
      IntraFreqNeighCellInfo
      physCellId : 1
      q-OffsetCell : dB0
      IntraFreqNeighCellInfo
      physCellId : 4
      q-OffsetCell : dB0
      IntraFreqNeighCellInfo
      physCellId : 5
      q-OffsetCell : dB0
（4）Attach Request
Message type: EPS MM
Direction: Uplink
Computer Timestamp: 17:23:02.843
Frame No: 674
Subframe No: 6
Attach Request
Security header type: (0) Plain NAS message, not security protected
protocol_discriminator : EPS Mobility Management
NAS EPS Mobility Management Message Type : (0x41) Attach request
Type of security context flag (TSC): (0) Native security context
NAS key set identifier: (0)
Spare bit(s): 0
EPS attach type: (1) EPS attach
EPS mobile identity - Old GUTI or IMSI
  Length : 11 octets
  odd/even indic: 0
  Type of identity: (6) GUTI
  Mobile Country Code (MCC): (460) China (People's Republic of) （移动国家码）
  Mobile Network Code (MNC): (00) China Mobile  （移动网络码）
  MME Group ID: 32768
  MME Code: 50
  M-TMSI: 0x203f09（临时移动用户识别）
UE network capability
  Length : 4 octets
  EEA0: (1) Support
  128-EEA1: (1) Support
  128-EEA2: (1) Support
  EEA3: (0) Not support
  EEA4: (0) Not support
  EEA5: (0) Not support
  EEA6: (0) Not support
  EEA7: (0) Not support
  EIA0: (1) Support
  128-EIA1: (1) Support
  128-EIA2: (1) Support
  EIA3: (0) Not support
  EIA4: (0) Not support
  EIA5: (0) Not support
  EIA6: (0) Not support
  EIA7: (0) Not support
  UEA0: (0) Not support
  UEA1: (0) Not support
  UEA2: (0) Not support
  UEA3: (0) Not support
  UEA4: (0) Not support
  UEA5: (0) Not support
  UEA6: (0) Not support
  UEA7: (0) Not support
  UCS2 support (UCS2): (0) Not support
  UMTS integrity algorithm UIA1: (0) Not support
  UMTS integrity algorithm UIA2: (0) Not support
  UMTS integrity algorithm UIA3: (0) Not support
  UMTS integrity algorithm UIA4: (0) Not support
  UMTS integrity algorithm UIA5: (0) Not support
  UMTS integrity algorithm UIA6: (0) Not support
  UMTS integrity algorithm UIA7: (0) Not support
ESM message container
  Length : 29 octets
  ESM message container contents: 2 1 d0 11 27 17 80 80 21 10 1 1 0 10 81 6 0 0 0 0 83 6 0 0 0 0 0 a 0
0000 .... = EPS bearer identity : 0
.... 0010 = protocol_discriminator : (2) EPS session management messages
Procedure transaction identity : 1
NAS EPS session management messages : (0xd0) PDN connectivity request
PDN type: (1) IPv4
Request type: (1) Initial request
Protocol Configuration Options
Element ID : 39
Length : 23 octets
Ext: 1
Configuration protocol: (0) PPP
Protocol information:
   [0]:
   Protocol ID : IPCP (Hex 8021)
   Contents length: 16 octets
   Protocal contents: (Hex) 01 01 00 10 81 06 00 00 00 00 83 06 00 00 00 00
   [1]:
   Protocol ID : (Hex A)
   Contents length: 0 octets
   Protocal contents: (Hex)
Tracking area identity - Last visited registered TAI
  Element ID : 82
  Mobile Country Code (MCC): (460) China (People's Republic of)
  Mobile Network Code (MNC): (00) China Mobile
  Tracking area code(TAC): 0x200
（5）RRCConnectionRequest（建立一个RRC连接）
RRC: RRCConnectionRequest
Message type: CCCH_UL
Direction: Uplink
Frame No: 675
Subframe No: 9
Computer Timestamp: 17:23:02.843
UL-CCCH-Message
message
  c1
rrcConnectionRequest
criticalExtensions
   rrcConnectionRequest-r8
   ue-Identity（初始UE标识）
   randomValue : 0x397737492F
   establishmentCause : mo-Signalling（建立原因）
   spare : 0x00
（6）RRCConnectionSetup（建立一个SRB1）
RC: RRCConnectionSetup
Message type: CCCH_DL
Direction: Downlink
Frame No: 680
Subframe No: 2
Computer Timestamp: 17:23:02.953
DL-CCCH-Message
message
  c1
rrcConnectionSetup
rrc-TransactionIdentifier : 0（RRC操作标识）
criticalExtensions
   c1
   rrcConnectionSetup-r8
   radioResourceConfigDedicated
      srb-ToAddModList
      SRB-ToAddMod
      srb-Identity : 1
      rlc-Config
         explicitValue
         am
         ul-AM-RLC
            t-PollRetransmit : ms200
            pollPDU : p64
            pollByte : kB100
            maxRetxThreshold : t6
         dl-AM-RLC
            t-Reordering : ms50
            t-StatusProhibit : ms0
      logicalChannelConfig
         explicitValue
         ul-SpecificParameters
         priority : 1
         prioritisedBitRate : infinity
         bucketSizeDuration : ms50
         logicalChannelGroup : 0
      mac-MainConfig
      explicitValue
      ul-SCH-Config
         maxHARQ-Tx : n4（上行最大传输次数，一般为4次确保传输数据成功）
         periodicBSR-Timer : sf5（BSR周期定时器时长，一般为了TCP等业务流畅将此定时器设置较短,目前配置为5ms）
         retxBSR-Timer : sf320
         ttiBundling : false（TTI捆绑开启指示）
      timeAlignmentTimerDedicated : infinity
      phr-Config
         setup
         periodicPHR-Timer : sf1000
         prohibitPHR-Timer : sf200
         dl-PathlossChange : dB3
      physicalConfigDedicated
      pdsch-ConfigDedicated
      p-a : dB-3（无CRS的OFDM符号上数据RE与CRS RE的能量之比，一般取3dB，即为功率比为1：2）
      pucch-ConfigDedicated
      ackNackRepetition : release
      tdd-AckNackFeedbackMode : bundling
      pusch-ConfigDedicated
      betaOffset-ACK-Index : 9
      betaOffset-RI-Index : 10
      betaOffset-CQI-Index : 13
      uplinkPowerControlDedicated
      p0-UE-PUSCH : 0（非持续调度信噪比增量，用户级的非持续调度业务目标信噪比调整量）
      deltaMCS-Enabled : en0
      accumulationEnabled : false
      p0-UE-PUCCH : 0
      pSRS-Offset : 5
      filterCoefficient : fc4
      tpc-PDCCH-ConfigPUCCH
      setup
         tpc-RNTI : 0x3002
         tpc-Index（PUSCH功控DCI）
         indexOfFormat3 : 1
      tpc-PDCCH-ConfigPUSCH
      setup
         tpc-RNTI : 0x0802
         tpc-Index
         indexOfFormat3 : 1
      cqi-ReportConfig
      nomPDSCH-RS-EPRE-Offset : 0
      cqi-ReportPeriodic
         setup
         cqi-PUCCH-ResourceIndex : 0
         cqi-pmi-ConfigIndex : 18
         cqi-FormatIndicatorPeriodic : widebandCQI
         ri-ConfigIndex : 322
         simultaneousAckNackAndCQI : true
      soundingRS-UL-ConfigDedicated
      setup
         srs-Bandwidth : bw0（小区SRS带宽配置，其中bw0对应b = 0，以此类推，参数b指示SRS传输所在频带层序号，某个频带层中单个频带的带宽与当前系统上行带宽有关）
         srs-HoppingBandwidth : hbw0
         freqDomainPosition : 0
         duration : true
         srs-ConfigIndex : 25
         transmissionComb : 0
         cyclicShift : cs0
      antennaInfo
      explicitValue
         transmissionMode : tm3（下行传输模式，目前配置为TM3）
         codebookSubsetRestriction
         n2TxAntenna-tm3 : 0xC0
         ue-TransmitAntennaSelection : release
      schedulingRequestConfig
      setup
         sr-PUCCH-ResourceIndex : 0
         sr-ConfigIndex : 3
         dsr-TransMax : n32
（7）RRCConnectionSetupComplete（确认一个RRC连接已经建立）
RRC: RRCConnectionSetupComplete
Message type: DCCH_UL
Direction: Uplink
Frame No: 681
Subframe No: 0
Computer Timestamp: 17:23:02.953
UL-DCCH-Message
message
  c1
rrcConnectionSetupComplete
rrc-TransactionIdentifier : 0
criticalExtensions
   c1
   rrcConnectionSetupComplete-r8
   selectedPLMN-Identity : 1
   registeredMME（MME注册发起）
      mmegi : 0x8000
      mmec : 0x32
   dedicatedInfoNAS : 0x1700000000030741010BF664F00080003200203F0904E0E00000001D0201D01127178080211001010010810600000000830600000000000A005264F0000200
Attach Request
Security header type: (1) Integrity protected
protocol_discriminator : EPS Mobility Management
Message authentication code: 0x0
Sequence number: 3
Security header type: (0) Plain NAS message, not security protected
protocol_discriminator : EPS Mobility Management(7)
NAS EPS Mobility Management Message Type : (0x41) Attach request
Type of security context flag (TSC): (0) Native security context
NAS key set identifier: (0)
Spare bit(s): 0
EPS attach type: (1) EPS attach
EPS mobile identity - Old GUTI or IMSI
  Length : 11 octets
  odd/even indic: 0
  Type of identity: (6) GUTI
  Mobile Country Code (MCC): (460) China (People's Republic of)
  Mobile Network Code (MNC): (00) China Mobile
  MME Group ID: 32768
  MME Code: 50
  M-TMSI: 0x203f09
UE network capability
  Length : 4 octets
  EEA0: (1) Support
  128-EEA1: (1) Support
  128-EEA2: (1) Support
  EEA3: (0) Not support
  EEA4: (0) Not support
  EEA5: (0) Not support
  EEA6: (0) Not support
  EEA7: (0) Not support
  EIA0: (1) Support
  128-EIA1: (1) Support
  128-EIA2: (1) Support
  EIA3: (0) Not support
  EIA4: (0) Not support
  EIA5: (0) Not support
  EIA6: (0) Not support
  EIA7: (0) Not support
  UEA0: (0) Not support
  UEA1: (0) Not support
  UEA2: (0) Not support
  UEA3: (0) Not support
  UEA4: (0) Not support
  UEA5: (0) Not support
  UEA6: (0) Not support
  UEA7: (0) Not support
  UCS2 support (UCS2): (0) Not support
  UMTS integrity algorithm UIA1: (0) Not support
  UMTS integrity algorithm UIA2: (0) Not support
  UMTS integrity algorithm UIA3: (0) Not support
  UMTS integrity algorithm UIA4: (0) Not support
  UMTS integrity algorithm UIA5: (0) Not support
  UMTS integrity algorithm UIA6: (0) Not support
  UMTS integrity algorithm UIA7: (0) Not support
ESM message container
  Length : 29 octets
  ESM message container contents: 2 1 d0 11 27 17 80 80 21 10 1 1 0 10 81 6 0 0 0 0 83 6 0 0 0 0 0 a 0
0000 .... = EPS bearer identity : 0
.... 0010 = protocol_discriminator : (2) EPS session management messages
Procedure transaction identity : 1
NAS EPS session management messages : (0xd0) PDN connectivity request
PDN type: (1) IPv4
Request type: (1) Initial request
Protocol Configuration Options
Element ID : 39
Length : 23 octets
Ext: 1
Configuration protocol: (0) PPP
Protocol information:
   [0]:
   Protocol ID : IPCP (Hex 8021)
   Contents length: 16 octets
   Protocal contents: (Hex) 01 01 00 10 81 06 00 00 00 00 83 06 00 00 00 00
   [1]:
   Protocol ID : (Hex A)
   Contents length: 0 octets
   Protocal contents: (Hex)
Tracking area identity - Last visited registered TAI
  Element ID : 82
  Mobile Country Code (MCC): (460) China (People's Republic of)
  Mobile Network Code (MNC): (00) China Mobile
  Tracking area code(TAC): 0x200（跟踪区代码）
（8）UECapabilityEnquiry（UE能力查询）
RRC: UECapabilityEnquiry
Message type: DCCH_DL
Direction: Downlink
Frame No: 697
Subframe No: 1
Computer Timestamp: 17:23:03.046
DL-DCCH-Message
message
  c1
ueCapabilityEnquiry
rrc-TransactionIdentifier : 0
criticalExtensions
   c1
   ueCapabilityEnquiry-r8
   ue-CapabilityRequest : eutra
（9）UECapabilityInformation（UE能力信息）
RRC: UECapabilityInformation
Message type: DCCH_UL
Direction: Uplink
Frame No: 697
Subframe No: 2
Computer Timestamp: 17:23:03.046
UL-DCCH-Message
message
  c1
ueCapabilityInformation
rrc-TransactionIdentifier : 0
criticalExtensions
   c1
   ueCapabilityInformation-r8
   ue-CapabilityRAT-ContainerList
      UE-CapabilityRAT-Container
      rat-Type : eutra
      ueCapabilityRAT-Container
      accessStratumRelease : rel8
      ue-Category : 3
      pdcp-Parameters
         supportedROHC-Profiles
         profile0x0001 : false
         profile0x0002 : false
         profile0x0003 : false
         profile0x0004 : false
         profile0x0006 : false
         profile0x0101 : false
         profile0x0102 : false
         profile0x0103 : false
         profile0x0104 : false
         maxNumberROHC-ContextSessions : cs2
      phyLayerParameters
         ue-TxAntennaSelectionSupported : false
         ue-SpecificRefSigsSupported : true
      rf-Parameters
         supportedBandListEUTRA
         SupportedBandEUTRA
         bandEUTRA : 38
         halfDuplex : false
      measParameters
         bandListEUTRA
         BandInfoEUTRA
         interFreqBandList
            InterFreqBandInfo
            interFreqNeedForGaps : true
            InterFreqBandInfo
            interFreqNeedForGaps : true
            InterFreqBandInfo
            interFreqNeedForGaps : true
         BandInfoEUTRA
         interFreqBandList
            InterFreqBandInfo
            interFreqNeedForGaps : true
            InterFreqBandInfo
            interFreqNeedForGaps : true
            InterFreqBandInfo
            interFreqNeedForGaps : true
         BandInfoEUTRA
         interFreqBandList
            InterFreqBandInfo
            interFreqNeedForGaps : true
            InterFreqBandInfo
            interFreqNeedForGaps : true
            InterFreqBandInfo
            interFreqNeedForGaps : true
         BandInfoEUTRA
         interFreqBandList
            InterFreqBandInfo
            interFreqNeedForGaps : true
            InterFreqBandInfo
            interFreqNeedForGaps : true
            InterFreqBandInfo
            interFreqNeedForGaps : true
         BandInfoEUTRA
         interFreqBandList
            InterFreqBandInfo
            interFreqNeedForGaps : true
            InterFreqBandInfo
            interFreqNeedForGaps : true
            InterFreqBandInfo
            interFreqNeedForGaps : true
      featureGroupIndicators : 0xE60D1880
      interRAT-Parameters
（10）SecurityModeCommand（安全模式）
RRC: SecurityModeCommand
Message type: DCCH_DL
Direction: Downlink
Frame No: 702
Subframe No: 7
Computer Timestamp: 17:23:03.156
DL-DCCH-Message
message
  c1
securityModeCommand
rrc-TransactionIdentifier : 0
criticalExtensions
   c1
   securityModeCommand-r8
   securityConfigSMC
      securityAlgorithmConfig
      cipheringAlgorithm : eea0（加密算法类型）
      integrityProtAlgorithm : spare1（完整性保护算法类型）
（11）SecurityModeComplete（安全模式完成）
RRC: SecurityModeComplete
Message type: DCCH_UL
Direction: Uplink
Frame No: 703
Subframe No: 0
Computer Timestamp: 17:23:03.156
UL-DCCH-Message
message
  c1
securityModeComplete
rrc-TransactionIdentifier : 0
criticalExtensions : securityModeComplete-r8
(12) RRCConnectionReconfiguration（RRC连接重配置）
RRC: RRCConnectionReconfiguration
Message type: DCCH_DL
Direction: Downlink
Frame No: 703
Subframe No: 4
Computer Timestamp: 17:23:03.156
DL-DCCH-Message
message
  c1
rrcConnectionReconfiguration
rrc-TransactionIdentifier : 0
criticalExtensions
   c1
   rrcConnectionReconfiguration-r8
   measConfig
      measObjectToAddModList
      MeasObjectToAddMod
      measObjectId : 1
      measObject
         measObjectEUTRA
         carrierFreq : 37900（小区中心频点，按照实际设计配置.目前配置为中心频点为2585MHz）
         allowedMeasBandwidth : mbw6
         presenceAntennaPort1 : true
         neighCellConfig : 0x40
         offsetFreq : dB0
         cellsToAddModList
         CellsToAddMod
            cellIndex : 1
            physCellId : 1
            cellIndividualOffset : dB0
         CellsToAddMod
            cellIndex : 2
            physCellId : 0
            cellIndividualOffset : dB0
         CellsToAddMod
            cellIndex : 3
            physCellId : 2
            cellIndividualOffset : dB0
      reportConfigToAddModList
      ReportConfigToAddMod
      reportConfigId : 1
      reportConfig
         reportConfigEUTRA
         triggerType
         event
            eventId
            eventA3（A3事件）
            a3-Offset : 2（A3事件触发偏移值，影响切换时两小区间功率差判断，目前配置为2dB）
            reportOnLeave : false
            hysteresis : 4（事件触发滞后因子，与a3-Offset共同影响切换时两小区间功率差判断，目前配置为2dB）
            timeToTrigger : ms512（事件触发持续时间，目前配置为512ms）
         triggerQuantity : rsrp
         reportQuantity : both
         maxReportCells : 8
         reportInterval : min6
         reportAmount : r1
      measIdToAddModList
      MeasIdToAddMod
      measId : 1
      measObjectId : 1
      reportConfigId : 1
      quantityConfig
      quantityConfigEUTRA
      filterCoefficientRSRP : fc4
      filterCoefficientRSRQ : fc4
      s-Measure : 0
      speedStatePars
      setup
      mobilityStateParameters
         t-Evaluation : s120
         t-HystNormal : s60
         n-CellChangeMedium : 5
         n-CellChangeHigh : 10
      timeToTrigger-SF
         sf-Medium : lDot0
         sf-High : lDot0
   dedicatedInfoNASList
      DedicatedInfoNAS : 0x27000000000207420126060064F000020000325201C1010816036C7465056D6E633030066D636334363004677072730501AC100E77270E8080210A0301000A810614463206500BF664F00080003200203F0A4A0364F070
   radioResourceConfigDedicated
      srb-ToAddModList
      SRB-ToAddMod
      srb-Identity : 2
      rlc-Config
         explicitValue
         am
         ul-AM-RLC
            t-PollRetransmit : ms200
            pollPDU : p64
            pollByte : kB100
            maxRetxThreshold : t6
         dl-AM-RLC
            t-Reordering : ms50
            t-StatusProhibit : ms0
      logicalChannelConfig
         explicitValue
         ul-SpecificParameters
         priority : 3
         prioritisedBitRate : infinity
         bucketSizeDuration : ms50
         logicalChannelGroup : 0
      drb-ToAddModList
      DRB-ToAddMod
      eps-BearerIdentity : 5
      drb-Identity : 3
      pdcp-Config
         discardTimer : ms100
         rlc-UM
         pdcp-SN-Size : len12bits
         headerCompression : notUsed
      rlc-Config
         um-Bi-Directional
         ul-UM-RLC
         sn-FieldLength : size10
         dl-UM-RLC
         sn-FieldLength : size10
         t-Reordering : ms50
      logicalChannelIdentity : 3
      logicalChannelConfig
         ul-SpecificParameters
         priority : 11
         prioritisedBitRate : kBps8
         bucketSizeDuration : ms100
         logicalChannelGroup : 3
      mac-MainConfig
      explicitValue
      ul-SCH-Config
         maxHARQ-Tx : n4
         periodicBSR-Timer : sf5
         retxBSR-Timer : sf320
         ttiBundling : false
      timeAlignmentTimerDedicated : infinity
      phr-Config
         setup
         periodicPHR-Timer : sf1000
         prohibitPHR-Timer : sf200
         dl-PathlossChange : dB3
      physicalConfigDedicated
      pdsch-ConfigDedicated
      p-a : dB-3
      pusch-ConfigDedicated
      betaOffset-ACK-Index : 9
      betaOffset-RI-Index : 10
      betaOffset-CQI-Index : 13
      uplinkPowerControlDedicated
      p0-UE-PUSCH : 0
      deltaMCS-Enabled : en0
      accumulationEnabled : false
      p0-UE-PUCCH : 0
      pSRS-Offset : 5
      filterCoefficient : fc4
      antennaInfo
      explicitValue
         transmissionMode : tm3
         codebookSubsetRestriction
         n2TxAntenna-tm3 : 0xC0
         ue-TransmitAntennaSelection : release
Attach Accept
Security header type: (2) Integrity protected and ciphered
protocol_discriminator : EPS Mobility Management
Message authentication code: 0x0
Sequence number: 2
Security header type: (0) Plain NAS message, not security protected
protocol_discriminator : EPS Mobility Management(7)
NAS EPS Mobility Management Message Type : (0x42) Attach accept
0000 0... = Spare bit(s): 0
.... .001 = Attach result: (1) EPS only
GPRS Timer
  GPRS Timer: 6 min
  001. .... = Unit: (01) value is incremented in multiples of 1 minute
  ...0 0110 = Timer value: 6
Tracking area identity list - TAI list
  Length : 6 octets
  Spare bit(s): 0
  .00. .... = Type of list: (0) list of TACs belonging to one PLMN, with non-consecutive TAC values
  Number of elements [+1 = 1 element(s)]
  Mobile Country Code (MCC): (460) China (People's Republic of)
  Mobile Network Code (MNC): (00) China Mobile
  Tracking area code(TAC): 0x200
ESM message container
  Length : 50 octets
  ESM message container contents: 52 1 c1 1 8 16 3 6c 74 65 5 6d 6e 63 30 30 6 6d 63 63 34 36 30 4 67 70 72 73 5 1 ac 10 e 77 27 e 80 80 21 a 3 1 0 a 81 6 14 46 32 6
0101 .... = EPS bearer identity : 5
.... 0010 = protocol_discriminator : (2) EPS session management messages
Procedure transaction identity : 1
NAS EPS session management messages : (0xc1) Activate default EPS bearer context request
EPS quality of service
Length : 1 octets
Quality of Service Class Identifier (QCI): (8) QCI 8
Access Point Name
Length : 22 octets
APN: lte.mnc00.mcc460.gprs
PDN address
Length : 5 octets
Spare bit(s): 0
PDN type: (1) IPv4
PDN IPv4: 172.16.14.119.
Protocol Configuration Options
Element ID : 39
Length : 14 octets
Ext: 1
Configuration protocol: (0) PPP
Protocol information:
   [0]:
   Protocol ID : IPCP (Hex 8021)
   Contents length: 10 octets
   Protocal contents: (Hex) 03 01 00 0a 81 06 14 46 32 06

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