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在4G(LTE)無線網(wǎng)絡中"RRC CONNECTION RECONFIGURATION"是為進入RRC連接模式狀態(tài)(RRC_CONNECTED)下的終端(UE)進行無線承載、邏輯信道、傳輸信道和物理信道和無線測量的配置；該消息還用于向UE發(fā)送 NAS dedicated信令等。
一、RRC連接重配置內(nèi)容 RRC CONNECTION RECONFIGURATION消息是修改RRC連接內(nèi)容的命令，消息中包括:
二、終端RRC連接重配置失敗處理 當網(wǎng)絡側(cè)下發(fā)的RRC CONNECTION RECONFIGURATION命令執(zhí)行失敗后，網(wǎng)絡或終端將啟動"RRC Connection re-establishment"流程。
三、無線網(wǎng)絡中RRC連接重配置實例(注釋)
1.rrcConnectionReconfiguration(1)---SRB和DRB配置 RRC-MSG ..msg 0> 01 00000001 T ....struDL-DCCH-Message ........dlCcchMessage 1> ............rrcConnectionReconfiguration ..............rrc-TransactionIdentifier:0x1 (1)(RRC傳輸ID:1) ..............criticalExtensions 2> ..................rrcConnectionReconfiguration-r8(RRC連接重配置-R8) 3> ..radioResourceConfigDedicated(專用無線資源配置） ..............srb-ToAddModList（SRB新增修改列表） 4> ......................SRB-ToAddMod（SRB新增模式） ........................srb-Identity:0x2 (2)（SRBID:2) ..........................rlc-Config(RLC配置） ............................explicitValue 5> .............................am(AM模式） ........................ul-AM-RLC(上行RLC AM模式） .....t-PollRetransmit:ms45 (8) (令牌桶重傳:45ms） 6> .............pollPDU:pInfinity (7)(令牌桶PDU:無限） ............pollByte:kBinfinity (14)(令牌桶比特:無限） 7> ......maxRetxThreshold:t32 (7)(最大重發(fā)次數(shù):7) .....................dl-AM-RLC(下行RLC AM模式） ...........t-Reordering:ms35 (7)(重組周期:35ms) 8> ..............t-StatusProhibit:ms0 (0)(狀態(tài)禁用:0ms) ....................logicalChannelConfig(邏輯信道配置） ............................explicitValue .................ul-SpecificParameters（上行特定參數(shù)） 9> .........................priority:0x3 (3)（優(yōu)先級:3) ....prioritisedBitRate:infinity (7)(優(yōu)先比特:無限) 10>...bucketSizeDuration:ms300 (3)(令牌桶周期:300ms） ............logicalChannelGroup:0x0 (0)(邏輯信道組:0) ................drb-ToAddModList(DRB新增修改列表） 11> ...............DRB-ToAddMod (DRB新增模式） 12> .eps-BearerIdentity:0x5 (5)(EPS承載ID:5) ---...................drb-Identity:0x1 (1)(DRBID:5) ..................pdcp-Config(PDCP配置） 13>......discardTimer:infinity (7)(丟棄計時器：無限) ..................rlc-AM(RLC AM模式） .....statusReportRequired:TRUE(狀態(tài)報告請求:是） ....................headerCompression（頭壓縮） 14> ..............................notUsed:NULL ........................rlc-Config（RLC配置） ............................am ..............................ul-AM-RLC 15> .......................t-PollRetransmit:ms40 (7) .............................pollPDU:p32 (3) 16> --..........................pollByte:kB25 (0) ........................maxRetxThreshold:t32 (7) ..............................dl-AM-RLC 17> ..............................t-Reordering:ms50 (10) ................................t-StatusProhibit:ms50 (10) 18> ..............logicalChannelIdentity:0x3 (3) ..........................logicalChannelConfig ................ul-SpecificParameters 19> ..............................priority:0xc (12) .........................prioritisedBitRate:kBps8 ....................bucketSizeDuration:ms300 (3) 20> ............................logicalChannelGroup:0x3 (3) ..................DRB-ToAddMod（DRB增加模式） 21> ............eps-BearerIdentity:0x6 (6)(EPS承載ID:6) 22> .............drb-Identity:0x2 (2)（DRB ID:2) ..........................pdcp-Config .........................discardTimer:infinity (7) ............................rlc-AM 23> ........................statusReportRequired:TRUE ........................headerCompression ..........................notUsed:NULL ..........................rlc-Config ............................am ...........................ul-AM-RLC 24>.....................t-PollRetransmit:ms40 (7) ........................pollPDU:pInfinity (7) 25> .........................pollByte:kBinfinity (14) ............................maxRetxThreshold:t32 (7) ..............................dl-AM-RLC 26> ......................t-Reordering:ms50 (10) ....................t-StatusProhibit:ms0 (0) 27> ................logicalChannelIdentity:0x4 (4) .....................logicalChannelConfig .............ul-SpecificParameters 28> C4 11------...............priority:0x4 (4) --...................prioritisedBitRate:kBps8 (1) 29> ......................bucketSizeDuration:ms100 (1) .........................logicalChannelGroup:0x0 (0) ..............mac-MainConfig (MAC層主要配置） ........................explicitValue ....................ul-SCH-Config（UL SCH配置） 30> ....periodicBSR-Timer:sf5 (0)（周期BSR計時器:sf5) 31>......retxBSR-Timer:sf320 (0)(BSR重發(fā)計時器:sf320) .............ttiBundling:FALSE（TTIBundling:否） ............drx-Config（DRX配置） ............................setup ......onDurationTimer:psf20 (8)（應用計時器:8) 32> ...drx-InactivityTimer:psf100 (14)(DRX去激活計時器:14) ....drx-RetransmissionTimer:psf8 (4)(DRX重發(fā)計時器：4） ......longDRX-CycleStartOffset（長DRX起始循環(huán)偏滯) 34> ................................sf160:0x0 (0) ..............................shortDRX(短DRX) ...............shortDRX-Cycle:sf40 (7)(短DRX循環(huán):7) 35> ......drxShortCycleTimer:0x4 (4)(短DRX循環(huán)計時器:4) .........timeAlignmentTimerDedicated:uu-infinity (7)(專用模式時間同步:UU-無限） 2.rrcConnectionReconfiguration Complete(1) RRC-MSG ..msg 0> 02 00000010 T ....struUL-DCCH-Message ........ulDcchMessage 1> ............rrcConnectionReconfigurationComplete（RRC重配置完成） -----01- ..............rrc-TransactionIdentifier:0x1 (1)（RRC傳輸ID:1) ..............criticalExtensions ....rrcConnectionReconfigurationComplete-r8（RRC重配置完成-r8） 2> 00 00000000 * 3.rrcConnectionReconfiguration(2)---測量報告配置 RRC-MSG ..msg 0> 01 00000001 T ....struDL-DCCH-Message ........dlCcchMessage 1> ............rrcConnectionReconfiguration .............rrc-TransactionIdentifier:0x2 (2)（RRC傳輸ID:2) ..............criticalExtensions 2> ........rrcConnectionReconfiguration-r8 （RRC連接重配置-R8) 3> ....................measConfig（測量配置） 4> .measObjectToAddModList（測量目標新增修改列表） 5> ........................MeasObjectToAddMod .........................measObjectId:0x1 (1)（測量目標ID:1) ..........................measObject(測量目標) 6> ............................measObjectEUTRA(測量目標:EUTRA) 9> 52 0-------.........carrierFreq:0x64 (100)(載波頻率:100) -10...................allowedMeasBandwidth:mbw100 (5)(測量帶寬:100RB=20M) ----.......................presenceAntennaPort1:FALSE(天線端口1呈現(xiàn):FALSE) -----01- ..............................neighCellConfig:01(01)(鄰接小區(qū)配置:01) 10> F0 1111---- ..............................offsetFreq:dB0 (15)(頻率偏滯:0dB) ..............................cellsToAddModList(小區(qū)添加修改列表） 11> ................................CellsToAddMod ..................................cellIndex:0x1 (1)（小區(qū)ID:1) 12> ..................................physCellId:0x194 (404)(物理小區(qū)ID:404) 13> ..................................cellIndividualOffset:dB0 (15)(CIO:0dB) ..........reportConfigToAddModList(報告配置新增修改列表） 14> .....................ReportConfigToAddMod（報告配置新增修改） .........................reportConfigId:0x1 (1)（報告配置ID:1) ..........................reportConfig ............................reportConfigEUTRA ..............................triggerType 15> ................................event ..................................eventId(事件ID) ....................................eventA3(A3事件） 16> 01 ......................................a3-Offset:0x2 (2)（A3偏滯:2) --- ......................................reportOnLeave:FALSE 17> 40 0 ..................................hysteresis:0x2 (2)(遲滯:2) -10..................................timeToTrigger:ms320 (8)(觸發(fā)時間:320ms) -----..............................triggerQuantity:rsrp (0)(觸發(fā)質(zhì)量：RSRP) ..........................reportQuantity:sameAsTriggerQuantity (0)(報告質(zhì)量:同觸發(fā)質(zhì)量） 18> C7 11------ ..............................maxReportCells:0x4 (4)(最多報告小區(qū):4) --0001-- ..............................reportInterval:ms240 (1) (報告間隙：240ms) 19> 84 1------- ..............................reportAmount:infinity-cnt (7)(報告數(shù)量:無限) ........................ReportConfigToAddMod -00001-- ..........................reportConfigId:0x2 (2) ..........................reportConfig ............................reportConfigEUTRA ..............................triggerType 20> ................................event ..................................eventId(事件ID) ....................................eventA2(A2事件） ......................................a2-Threshold(A2事件門限） 21> 30 ......................................threshold-RSRP:0x26 (38)（RSRP門限:-102) 22> AD 10------ ..................................hysteresis:0x2 (2)(遲滯:2) --1011-- ..................................timeToTrigger:ms640 (11) ------0- ..............................triggerQuantity:rsrp (0) -------1 ..............................reportQuantity:both (1) 23> 04 000----- ..............................maxReportCells:0x1 (1) ---0010- ..............................reportInterval:ms480 (2) 24> 04 00------ ..............................reportAmount:r1 (0) ........................ReportConfigToAddMod --00010- ..........................reportConfigId:0x3 (3) ..........................reportConfig - ............................reportConfigEUTRA 25> .............................triggerType(事件類型) ................................periodical(周期性） .................................purpose:reportStrongestCells (0)（目的:最強小區(qū)） ..............................triggerQuantity:rsrp (0)（觸發(fā)質(zhì)量:RSRP) ..............................reportQuantity:both (1) -----101 ..............................maxReportCells:0x6 (6)(最多上報小區(qū):6) 26> 6E 0110---- ..............................reportInterval:ms5120 (6)(報告間隙:5120MS) ----111- ..............................reportAmount:infinity-cnt (7) ......................measIdToAddModList 27> ........................MeasIdToAddMod 28> 00 0------- ..........................measId:0x1 (1) -00000-- ..........................measObjectId:0x1 (1) 29> 01 000----- ..........................reportConfigId:0x1 (1) ........................MeasIdToAddMod ---00001 ..........................measId:0x2 (2) 30> 00 00000--- ..........................measObjectId:0x1 (1) 31> 44 01------ ..........................reportConfigId:0x2 (2) ........................MeasIdToAddMod --00010- ..........................measId:0x3 (3) 32> 01 0000---- ..........................measObjectId:0x1 (1) 33> 23 0------- ..........................reportConfigId:0x3 (3) ......................quantityConfig ........................quantityConfigEUTRA 34> 31 00110--- ..........................filterCoefficientRSRP:fc6 (6) 35> 80 10------ ..........................filterCoefficientRSRQ:fc6 (6) 36> 00 0------- ......................s-Measure:0x0 (0) ......................speedStatePars ........................release:NULL 4.rrcConnectionReconfiguration Complete(2) RRC-MSG ..msg 0> 02 00000010 T ....struUL-DCCH-Message ........ulDcchMessage 1> ..........rrcConnectionReconfigurationComplete -----10- ..............rrc-TransactionIdentifier:0x2 (2) ..............criticalExtensions ................rrcConnectionReconfigurationComplete-r8 2> 00 00000000 *
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