看LOG学5G(75)-UE的RRC建立过程

看LOG学5G(75)-UE的RRC建立过程

#5G#无线网Z3#RRCSETUP

终端RRC建立准备

初始开机的5G终端(UE)在完成与无线网络(RAN)下行同步后，正确解码

小区MIB和SIB消息，测量BRS,选定下行链路波束对.终端(UE)向无

线网(RAN)发送RACH前导码，5G-RAN回复RACH响应：完成终端与网

络的上行同步。

一、终端(UE)RRC建立过程

•根据业务或移动性管理需求终端(UE)向5G-RAN发送RRC连接建立请

求。

•5G-RAN为终端(UE)分配无线资源，回复RRC连接建立。

•终端(UE)与5G-RAN间建立RRC连接，回复RRC连接建立完成。

之后，终端(UE)与5G-RAN间之间将根据需要进行RRC连接重新配置。

UE56RAN

1.SS,SI

2.RACHpreamble

3.RandomAccessResponse

4.RRCConnectionRequest

5.RRCConnectionSetup

6.RRCConnectionSetupComplete

7.RRCConnectionReconfiguration

8.RRCConnectionReconfigurationComplete

------------------------------------------------------7一浒蚩X-c

图L5G终端(UE)RRCSETUP流程

二、无线网络中RRC建立

在无线网络中的RRC建立请求消息”RRCSetupRcquest”消息先由终端(UE)

通过空口(Uu)发送到gNB;

•在gNB拆分为DU与CU的架构中DU将接收到的

“InitialULRRCMessage”传递给CU;

•gNB根据终端(UE)的RRC建立请求为其分配无线资源,回复“RRCSetup,,;

•收到无线资源(承载)后，终端(UE)回复"RRCSetupComplete"消息。

）Time▲DataidMsgidueidDirectioncellidgNBidPLMNRNTI

2022-02-07­09:10:55.771UUV1906S0RRCSetupRequest9W956rev11311563094460002884

2022-02-07-09:10:55.771F1INITIAL_UL.RRC.MESSAGEJR..9E956^end11311563094,460002884

2022-02-07-09:10:55,771FlINITIALULRRCMESSAGETR..9E956rev11311563094460002884

2022-02-07-09:10:55.772UU.V190630RRCSetup9E956send113上和自笠即㈡色字呢

2022-02-07-09:10:55.811UUV1906MRRCSetupComplete9E956rev11311563094460002884

图2.无线网络中RRC建立过程

三、终端(UE)RRC建立消息(部分注释)

3.1.rrcSetupRequest(终端RRC建立请求--原因)

UuMsg

message

t=cl

t=rrcSetupRcquest

rrcSetupRequest

rrcSetupRequest

ue」dentity（UEID）

t=randomValue（随机接入码）

randomValue（随机接入码）

numbits=39（（随机接入码:39bits）

data=00010110100000110101001011100110OOOlllO（BIT）

establishmentCause=3:EstablishmentCause_Root_mo_Signalling（建立原因:3--mo信

令）

spare

numbits=1

data=0（BIT）

3.2RRCSetup（网络RRC建立--无线资源分配）

UuMsg

message

t=cl

t=rrcSetup

urrcSetup

rrc_TransactionIdentifier=0（RRC传输ID:0）

criticalExtcnsions

t=rrcSetup

tOptFlags

lateNonCriticalExtensionPresent=0

nonCriticalExtensionPresent=0

radioBcarcrConfig

tOptFlags

srb_ToAddModListPresent=1（SRB新增修改=是）

srb3_T（）ReleasePresent=0

drb_ToAddModListPresent=0

drb_ToReleaseListPresent=0

securityConfigPresent=0

srb_ToAddModList（SRB新增修改列表）

n=1

elem|01

tOptFlags

reestabiishPDCPPresent=0

discardOnPDCPPresent=0

pdcp_ConfigPresent=1（PDCP层配置=是）

srb_Identity=1（SRBID=1）

pdcp_Config（PDCP层配置）

tOptFlags

drbPresent=0

moreThanOneRLCPresent=0

t_RcordcringPresent-1（重组配置=是）

verExt2Present=0

t_Reordering=31:PDCP_Config_t_Reordering_Root_ms2000（PDCP重组配

置:2000ms）

masterCellGroup

tOptFlags

rlc_BearerToAddModListPresent=1（RLC承载新增修改列表二

是）

rlc_BearerToReleaseListPresent=0

mac_CellGroupConfigPresent=1（MAC层小区组配置=

是）

physicalCellGroupConfigPresent=0

spCcllConfigPrcsent=1（SP小区配置=是）

sCellToAddModListPresent=0

sCcllToRclcaseListPrcscnt=0

verExt2Present=0

ccllGroupld=0

rlc_BearerToAddModList（RLC承载新增修改列表）

n=I

elemlO]

tOptFlags

scrvcdRadioBcarcrPrcsent=1（无线承载二是）

reestablishRLCPresent=0

rlc_ConfigPresent=1（RLC层配置二是）

mac_LogicalChannelConfigPresent=1（MAC层逻辑信道配置=

是）

iogicalChannclIdcntity=1（逻辑信道ID=1）

servedRadioBearer

t=srb_Idcntity

srbjdentity=1（SRBID=1）

rlc_Config（RLC层配置）

t=am（传输模式=A\I）

u

am

ul_AM_RLC（上行RLCAM配置）

tOptFlags

sn_FieldLengthPresent=1

sn_FieldLength=0:SN_FieldLengthAM_Root_size12

t_PollRetransmi（=8:T_PollRetransmil_Root_ms45

pollPDU=4:PollPDU_Root_p64

pollByte=8:PollByte_Root_kB75

maxRetxThreshold=6:UL_AM_RLC_maxRetxThreshold_Root_t16

dl_AM_RLC（二行RLCAM配置）

tOptFlags

sn_FieldLengthPresent=1

sn_FieldLength=0:SN_FieldLengthAM_Root_size12

t_Reassembly=8:T_Reassembly_Root_ms40

t_StatusProhibit=2:T_StatusProhibit_Root_ms10

mac_LogicalChannelConfig（MAC层逻辑信道配置）

tOptFlags

ul_SpecificParametersPresent=1

ui_SpecificParameters

tOptFlags

allowedServingCellsPresent=0

allowcdSCS_ListPrcscnt=0

maxPUSCH_DurationPresent=0

configuredGrantTypc1AllowedPresent=0

logicalChannelGroupPresent=1

schedulingRequestIDPresent=1

bitRateQueryProhibitTirnerPresent=0

priority=1

prioritiscdBitRatc=15:

LogicalChannelConfig_ul_SpecificParameters_prioritisedBilRate_Root_infinity

bucketSizeDuration=7:

LogicalChannelConfig_ul_SpecificParameters_bucketSizeDuration_Root_ms500

iogicalChannelGroup=0

schedulingRequestlD=0

logicalChannelSR_Mask=FALSE

logicalChannclSR_DclayTimcrApplicd=FALSE

mac_CellGroupConfig

tOptFlags

drx_ConfigPresent=0

schedulingRequestConfigPresent=1

bsr_ConfigPrescnt=1

tag_ConfigPresent=1

phr_ConfigPrcsent=I

verExt2Presenl=0

schedulingRequestConfig（SR配置）

tOptFlags

schedulingRequestToAddModListPresent=1

schcdulingRcquestToRclcascListPrcscnt=0

schedulingRequestToAddModList

n=1

elem[0]

tOptFlags

sr_ProhibitTirnerPresent=1

schedulingRequestld=0

sr_ProhibitTimcr=3:SchcdulingRcqucstToAddMod_sr_ProhibitTiincr_Root_ms8

sr_TransMax=4:SchedulingRequestToAddMod_sr_TransMax_Root_n64

bsr_Config（BSR配置）

tOptFlags

logicalChannelSR_DelayTimerPresent=0

periodicBSR_Timer=1:BSR_Config_periodicBSR_Timer_Root_sf5

retxBSR_Timer=5:BSR_Config_retxBSR_Timer_Root_sf320

tag_Config（TAG配置）

tOptFlags

tag_ToReleaseListPresent=0

tag_ToAddModLislPresent=1

tag_ToAddModList

n=1

elem[0]

tag_Id=0

timeAlignmentTimer=7:TimeAlignmentTimer_Root_infinity

phr_Config（PHR配置）

t=setup

u

setup

phr_PeriodicTimer=3:PHR_Config_phr_PeriodicTiiner_Root_sflOO

phr_ProhibitTimcr=1:PHR_Config_phr_ProhibitTimcr_Root_sflO

phr_Tx_PowerFactorChange=1:

PHR_Config_phr_Tx_PowerFactorChange_Root_dB3

muItiplePHR=FALSE

dummy=FALSE

phr_Typc2OthcrCcll=FALSE

phr_ModeOtherCG=0:PHR_Config_phr_ModeOlherCG_Root_real

skipUplinkTxDynamic=FALSE

spCellConfig

tOptFiags

servCelllndexPresent=0

reconfigurationWithSyncPresent=0

rlf_TimcrsAndConstantsPrcscnt=0

rlmlnSyncOutOfSyncThresholdPresent=0

spCellConfigDedicatedPrescnt=1

spCellConfigDedicated

tOptFiags

tdd_UL_DL_ConfigurationDedicatcdPresent=0

initialDownlinkBWPPresent=0

downlinkBWP_ToRcicascListPrcscnt=0

downlinkBWP_ToAddModListPresent=0

firstActiveDownlinkBWP_IdPresent=0

bwp_InactivityTimerPresent=0

defaultDownlinkBWP_IdPresent=0

uplinkContigEreseni=1

supplementaryUplinkPresent=0

pdcch_ScrvingCcllConfigPresent=0

pdsch_ServingCellConfigPresent=0

csi_MeasConfigPresent=0

sCellDeactivationTimerPresent=0

crossCarrieiSchedulingConfigPresent=0

duinmyPresent=0

pathlossReferenceLinkingPresent=0

scrvingCcilMOPrcsent=0

verExt2Present=0

verExt3Present=0

uplinkConfig（上行配置）

tOptFlags

initialUplinkBWPPrcsent=I

uplinkBWP_ToReleaseLislPresent=0

upiinkBWP_ToAddModListPrcscnt=0

firstAcliveUplinkB\VP」dPreseni=0

pusch_ServingCeliConfigPresent=0

carrierSwitchingPresent=0

verExt2Present=0

vcrExt3Prcscnt=0

initialUplinkBWP（初始上行BWP）

tOptFlags

pucch_ConfigPresent=I

pusch_ConfigPresen（=1

configuredGrantConfigPresent=0

srs_ConfigPresent=0

beamFailureRecoveryConfigPresent=0

pucch_Config（PUCCH配置）

t=setup

tOptFlags

resourceSetToAddModListPresent=0

resourceSet1oReleaseListEresent=0

resourceToAddModListPresent=1

rcsourccToRclcascListPrcscnt=0

formatIPresent=1

format2Present=0

formatSPresent=0

format4Present=0

schcdulingRcquestResourccToAddModListPrcsent=1

schedulingRequestResourceToReleaseListPresent=0

multi_CSI_PUCCH_RcsourccLis(Prcsent=0

dl_DataToUL_ACKPresent=0

spatialRelationlnfoToAddModListPresent=0

spatialRelationlnfoToReleaseListPresent=0

pucch_PowerControlPresent=0

verExt2Prescnt=0

resourceToAddModList

n=1

elem[01

tOptFlags

intraSlotFrequencyHoppingPresent=0

secondHopPRBPresent=0

pucch_Rcsourcdd=16

startingPRB=13

format

t=formatI

initialCyclicShift=11

nrofSymbols=14

startingSymbolIndex=0

timcDomainOCC=6

formatI

t=setup

tOptFlags

interslotFrequencyHoppingPresent=0

additionalDMKSBresent=0

maxCodeRatePresent=0

nrofSlotsPrcscnt=0

pi2BPSKPresent=

0simultaneousHARQ_ACK_CS

IPresent=0

schcdulingRcqiicstRcsoiirceTo/XddModLis

t

n=1

elem[0)

tOptFlags

periodicityAndOffsetPresent=1

resourcePresent=1

schcdulingRcquesiResourcdd=1

schedulingRequestID=0

pcriodicityAndOffsct

t=sllO

u

si1()=8

resource=16

pusch.Config(PUSCH配置)

t=setup

tOptFlags

dataScramhlingldentityPUSCHPresent=0

txConfigPresent=

0dmrs_UplinkForPUSCH_MappingTyp

eAPresent=

0dmrs_UplinkForPUSCH_M叩pingTyp

eBPresent=0

pusch_PowerControlPresent=0

frequencyHoppingPresent=0

frequencyHoppingOffsetListsPresent=

0

pusch_TimeDomainAllocationListPresent=0

pusch_AggrcgationFactorPrcsent=0

mcsTablePresent=0

mcs_TableTransfoimPrecoderPresent=

0

transformPrecoderPresent=0

codcbookSubsetPrescnt=0

maxRankPresent=0

rbg_SizePrcscnt=0

uci_OnPUSCHPresenl=1

tp_pi2BPSKPresent=0

resourceAllocation=1:

PUSCH_Config_resourceAllocation_Root_resourceAllocationTypel

uci_OnPUSCH(PUSCH中UCI)

t=setup

tOptFlags

belaOffsetsPresent=1

betaOffsets

t=semiStatic

u

scmiStatic

tOptFlags

betaOffsetACK_lndex1Present=

1belaOffsetACK_Index

2Present=

1betaOffsetACK_Index3Prese

nt=1betaOffsetCSI_Partl_Index1Present

1betaOffsetCSI_Part1_Index2Present

IbetaOffselCSI_Part2_Index1Pr

esent=

1beta(JffsetCSl_Bart2_lndex2rrese

nt=1

bctaOffsctACK_Indcxl=9

betaOffsetACKIndex2=7

betaOffsetACK_Index3=7

betaOffsetCSI_PartI_Index1=14

betaOffsetCSI_Part1_Index2=14

bctaOffsetCSI_Part2_Indcx1=14

betaOffsetCSI_Part2_Index2=14

scaling=0:UCI_OnPUSCH_scaling_Roo（_fOp5

lag_Id=0

3.ircSetupComplete（终端RRCSetup消息接收完成）

请参看log学5G（45）«RRCSetupComplete中有些啥？Original

UuMsg

message

t=cl

t=rrcSetupComplete

u

rrcSetupComplete

rrc_TransactionIdentifier=0

criticalExtcnsions

t=rrcSetupComplete

rrcSetupComplete

lOptFlags

registeredAMFPresent=1（AMF注册=是）

guami_TypcPrcsent=1（GUAMI类型=是）

s_NSSAI_ListPresent=0

ng_5G_S_TMSI_ValucPrcsent=0

lateNonCriticalExtensionPresent=0

nonCriticalExtensionPreseni=0

selectedPLMNJdentity=1（PLMN选择ID=是）

registeredAMF

tOptHags

plmn_IdentityPresent=0

amf_Idcntifier（AMFID）

numbits=24（AMFID比特=24）

data=080008(HEX)(AMFID■十六进制)

guami_Type=0:RRCSetupComplete_IEs_guami_Type_Root_native

dedicatedNAS_Message(专用NAS消息)

nocts=78

data=ffffffffffffffffffffffffffffffffffffffffffffff

ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff

ffffffffffffffffffffffffffffffffffff(HEX)

4.FlInitialULRRCMessageTransfer(Fl接口DU向CU传递的

RRC消息)

FlapMsg

t=initiatingMessage

u

initiatingMessage

procedureCode=plnitialULRRCMessageTransfer(初始上行RRC信息)

union_value

plnitialULRRCMessageTransfer

protocolIEs

tOptFlags

dUtoCURRCContainerPresent=1

sULAccessIndicationPresent=0

udtTracelnformationPresent=0

privatelnfoContainerPresent=1

gNB_DU_UE_F1APJD=2483(gNB_DU_UE_Fl的ID=2483)

nRCGI(小区的CGI)

tOptFlags

iE_ExtensionsPresent=0

pLMN_Idenlity(PLMNID)

nocts=3

data=64fO00(HEX)

nRCellIdentity(NRCELLID)

numbits=36

data=101100000111000001010110000001110001(BIT)

c_RNTl=2884(终端的C_RNTI:2884)

rRCContaincr(RRC容器--内容)

nocts=6

data=1168352e61c6(HEX)

message

t=cl

t=rrcSetupRequesi

rrcSetupRequest

ue_Identity(UEID)

t=randomValue(随机接入码)

u

randomValue

numbits=39(39比特)

data=00010110100000110101001011100110OOOlllO(BIT)

establishmentCause=3:EstablishmentCause_Root_mo_Signalling(建立原因:mo

sig)

spare

numbits=1

data=0(BIT)

dUtoCURRCContainer(DU给CURRC容器一内容)

nocts=44

data=5400bO01104234809061ee007c21cO5507994008

040()8188a2()0008034dd068()3()le0840()027ff49cee739c()(HEX)

tOptFlags

rlc_BcarcrToAddModListPrcscnt=1

rlc_BearerToReleaseLislPresent=0

mac_CellGroupConfigPresent=1

physicalCellGroupConfigPresent=0

spCellConfigPresent=1

sCellloAddModListPresent=0

sCellToReleaseListPresent=0

vcrExt2Prcscnt=0

cellGroupId=0

rlcBearerToAddModList

n=1

elem[0)

tOptFlags

servedRadioBearerPresent=1

rcestablishRLCPrcscnt=0

rlc_ConfigPresenl=1

mac_LogicalChannelConfigPresent=1

logicalChannelIdentity=I

servedRadioBearer

t=srb_Idcntityu

srb_Identity=I

rlc_Config

t=amu

am

ul_AM_RLC

tOptFlags

sn_FicldLcngthPrcscnt=1

sn_FieldLength=0:

SN_FieldLengthAM_Root_size12

t_PoURe(ransmit=8:T_PonRetransmit_Root_ms45

pollPDU=4:PollPDU_Root_p64

pollByte=8:PollByte_Root_kB75

maxRetxThreshold=6:UL_AM_RLC_maxRetxThreshold_Root_t16

dl_AM_RLC

tOptFlags

sn_FieldLcngthPresent=1

sn_FieldLength=0:

SN_FieldLengthAM_Root_sizel2

t_Reassembly=K:l_Reassembly_Root_ms40

t_StatusProhibit=2:T_StatusProhibit_Root_mslO

mac_LogicalChannclConfig

tOptFlags

ul_SpecificParametersPresent=1

ul_SpecificParameters

tOptFlags

allowcdScrvingCcllsPrcsent=0

allowedSCS_ListPresent=0

maxPUSCH_DurationPrcscnt=0

configuredGranlTypelAllowedPresent=0

logicalChannelGroupPresent=1

schedulingRequestIDPresent=1

bitRateQueryProhibitTinierPresent=0

priority=1

prioritisedBitRate=15:

LogicalChannclConfig_ul_SpccificParamctcrs_prioritiscdBitRatc_Root_infinity

bucketSizeDuration=7:

LogicalChannelConfig_ul_SpecificParanieters_bucketSizeDuration_Root_ms500

logicalChannelGroup=0

schedulingRequestID=0

IogicalChannclSR_Mask=FALSE

logicalChannelSR_DelayTimerApplied=FALSE

mac_CellGroupConfig

tOptFlags

drx_ConfigPresen(=0

schedulingRequestConfigPresent=1

bsr_ConfigPresent=I

tag_ConfigPrcscnt=1

phr_ConfigPresent=I

verExt2Present=0

schedulingRequestConfig

tOptFlags

schedulingRcquestloAddModListEresent=1

schedulingRequestToReleaseListPresent=0

schcdulingRcqucstToAddModList

elem[O]

tOptFlags

sr_ProhibitTimerPresent=1

schcdulingRcquestld=0

sr_ProhibitTimer=3:SchedulingRequestToAddMod_sr_ProhibitTimer_Root_ms8

sr_TransMax=4:SchcdulingRcqucstToAddMod_sr_TransMax_Root_n64

bsr_Config

tOptFlags

logicalChanneISR_DelayTimerPresent=0

periodicBSR_Timer=1:BSR_Config_periodicBSR_Tinier_Root_sf5

rctxBSR_Tinicr=5:

BSR_Config_retxBSR_Timer_Root_sf320

tag_Config

tOptFlags

tag_ToReleaseListPresent=0

tag_ToAddModListPresent=1

tag_ToAddModList

n=I

elem[0]

tag_Id=0

timeAlignmentTimer=7:TimeAlignmentTimer_Rooi_infinity

phr_Config

t=setup

u

setup

phr_PeriodicTinier=3:PHR_Config_phr_PeriodicTimer_Root_sf100

phr_ProhibitTimer=1:PHR_Config_phr_ProhibitTimer_Root_sflO

phr_Tx_PowerFactorChange=1:

PHR_Config_phr_Tx_PowerFactorChange_Root_dB3

multipleEHR=FALSE

dummy=FALSE

phr_Typc2OthcrCcli=FALSE

phr_ModeOtherCG=0:PHR_Config_phr_ModeOtherCG_Root_real

skipUplinkTxDynamic=FALSE

spCellConfig

tOptFlags

scrvCcllIndcxPresent=0

reconfigurationWithSyncPresent=0

rlf_TimcrsAndConstantsPicscnt=0

rlmlnSyncOutOfSyncThresholdPresent=0

spCellConfigDedicatedPresent=I

spCellConfigDedicated

tOptFlags

tdd_UL_DL_ConfigurationDcdicatcdPrcscnt=0

initialDown!inkBWPPreseni=0