CBRS详解和band 48模组接入网络测试

什么是CBRS

CBRS是Citizens Broadband Radio Service的缩写。
2015年美国联邦通讯委员会(FCC)批准了CBRS(公民宽带无线电服务)的频谱。
CBRS频谱的带宽是150MHz
CBRS频谱的范围是3550到3700MHz, 频率分配跨越现有的LTE频段42(3400兆赫到3600兆赫)和LTE频段43(3600兆赫到3800兆赫)。
CBRS的频段是Band 48,TD-LTE制式,支持语音、短信、数据服务
该频谱作为共享频谱被美国政府和其他商业机构和社团实体共享使用。
CBRS采用三层频谱共享框架设计。最上面是现任访问层,后面是优先级访问层。最后一层是一般授权访问,包括可供一般使用的其余频谱。
CBRS克服了WiFi的局限性,为大型商业企业提供了更高效的选择。WiFi覆盖范围和容量有限。CBRS为商业企业提供两倍的容量和四倍的WiFi范围。

CBRS联盟

CBRS联盟由120个成员公司组成。CBRS联盟认为,CBRS频段的基于LTE的解决方案,利用共享频谱,可以实现建筑和室外覆盖以及大规模扩容。为了最大限度地发挥CBRS的全部潜力,CBRS联盟旨在建立一个强大的生态系统,以提供基于LTE的CBRS解决方案。CBRS联盟的任务是宣传基于LTE的CBRS技术、用例和业务机会,同时推动完成任务所需的技术发展,包括多运营商LTE能力。联盟还将为美国3.5GHz频段的LTE设备建立有效的产品认证计划,确保多供应商的互操作性。

CBRS的频谱共享分配方式

与公网运营商频段相比CBRS不同的是频谱分配给每个用户的方式。CBRS不是在大范围内把频谱卖给广域覆盖的运营商,也不像WiFi那样完全公开免费试用频段。相反,每栋建筑内的使用都是根据具体情况单独要求和分配的。如果不再需要,则返回给他人使用。

分配频谱的过程是自动化的,有几个频谱分配服务器(SAS)在全国范围内协调该方案。作为注册请求的一部分,每个小单元报告其水平位置在50米以内,垂直位置在3米以内。SAS使用地形数据和无线电传播模型来计算对附近其他小单元的影响。额外的室外无线电测量接收器(环境传感器)也用于评估背景水平。如果射频功率密度小于-80dBm(1x10-11瓦),则SAS授权频谱使用。
其理念是,频谱是一项宝贵的国家资产,应加以利用,而不是休眠。

CBRS模组

目前市面上已经有一些支持CBRS的模组和产品。这里我们采用一款模组开发板进行测试。

CBRS基站模拟器

由于CBRS的频段比较特殊,这里我们采用微戎WR100作为CBRS基站模拟器配合测试。

传导测试

将CBRS模组的天线口直接通过功分器和射频线连接到WR100上。通过微戎测试系统配置界面,设置为TDD的Band 48,在测试单板上插入测试SIM卡,即可以开始测试。在终端单板的串口上输入AT+CFUN=1,可以看到终端成功接入网络,获取到IP,并且可以ping通和访问公网。
CBRS详解和band 48模组接入网络测试_第1张图片

OTA测试

将CBRS模组的天线口连接上3.5GHz的天线。WR100基站模拟器也连接上3.5GHz的天线。通过微戎测试系统配置界面,设置为TDD的Band 48,在测试单板上插入测试SIM卡,即可以开始测试。在终端单板的串口上输入AT+CFUN=1,可以看到终端成功接入网络,获取到IP,并且可以ping通和访问公网。
CBRS详解和band 48模组接入网络测试_第2张图片
CBRS详解和band 48模组接入网络测试_第3张图片
我们进一步测试通过CBRS模组接入的网络ping百度的IP
CBRS详解和band 48模组接入网络测试_第4张图片

信令分析

采用微戎WR100的信令分析工具抓取入网时候的信令消息。
解析MIB消息可以看到带宽是10MHz,PHICH的配置,以及SFN

BCCH-BCH-Message
message
    dl-Bandwidth: n50 (3)
    phich-Config
        phich-Duration: normal (0)
        phich-Resource: one (2)
    systemFrameNumber: 50 [bit length 8, 0101 0000 decimal value 80]
    schedulingInfoSIB1-BR-r13: SystemInformationBlockType1-BR is not scheduled (0)
    ...0 .... systemInfoUnchanged-BR-r15: False
    spare: 00 [bit length 4, 4 LSB pad bits, 0000 .... decimal value 0]

解析SIB1消息后可以看到SIB1里带的频段信息是band 48: freqBandIndicator: 48,MCC/MNC是001/01,Cellid,trackingAreaCode以及TDD的子帧配比

BCCH-DL-SCH-Message
message: c1 (0)
    c1: systemInformationBlockType1 (1)
        systemInformationBlockType1
            cellAccessRelatedInfo
                plmn-IdentityList: 1 item
                    Item 0
                        PLMN-IdentityInfo
                            plmn-Identity
                                mcc: 3 items
                                    Item 0
                                        MCC-MNC-Digit: 0
                                    Item 1
                                        MCC-MNC-Digit: 0
                                    Item 2
                                        MCC-MNC-Digit: 1
                                mnc: 2 items
                                    Item 0
                                        MCC-MNC-Digit: 0
                                    Item 1
                                        MCC-MNC-Digit: 1
                            cellReservedForOperatorUse: notReserved (1)
                trackingAreaCode: 0001 [bit length 16, 0000 0000  0000 0001 decimal value 1]
                cellIdentity: 1a2d0010 [bit length 28, 4 LSB pad bits, 0001 1010  0010 1101  0000 0000  0001 .... decimal value 27447297]
                cellBarred: notBarred (1)
                intraFreqReselection: allowed (0)
                .... ..0. csg-Indication: False
            cellSelectionInfo
                q-RxLevMin: -140dBm (-70)
            p-Max: 10dBm
            freqBandIndicator: 48
            schedulingInfoList: 1 item
                Item 0
                    SchedulingInfo
                        si-Periodicity: rf16 (1)
                        sib-MappingInfo: 1 item
                            Item 0
                                SIB-Type: sibType3 (0)
            tdd-Config
                subframeAssignment: sa2 (2)
                specialSubframePatterns: ssp7 (7)
            si-WindowLength: ms40 (6)
            systemInfoValueTag: 0
            nonCriticalExtension
                nonCriticalExtension
                    nonCriticalExtension
                        nonCriticalExtension
                            cellAccessRelatedInfo-v1250
                            nonCriticalExtension
                                hyperSFN-r13: 4e80 [bit length 10, 6 LSB pad bits, 0100 1110  10.. .... decimal value 314]
                                eDRX-Allowed-r13: true (0)

解析SIB23可以看到上行的信道配置信息,RACH配置信息,上行功控信息,测量重选信息

message: c1 (0)
    c1: systemInformation (0)
        systemInformation
            criticalExtensions: systemInformation-r8 (0)
                systemInformation-r8
                    sib-TypeAndInfo: 2 items
                        Item 0
                            sib-TypeAndInfo item: sib2 (0)
                                sib2
                                    radioResourceConfigCommon
                                        rach-ConfigCommon
                                            preambleInfo
                                                numberOfRA-Preambles: n52 (12)
                                            powerRampingParameters
                                                powerRampingStep: dB2 (1)
                                                preambleInitialReceivedTargetPower: dBm-104 (8)
                                            ra-SupervisionInfo
                                                preambleTransMax: n10 (6)
                                                ra-ResponseWindowSize: sf10 (7)
                                                mac-ContentionResolutionTimer: sf40 (4)
                                            maxHARQ-Msg3Tx: 5
                                        bcch-Config
                                            modificationPeriodCoeff: n4 (1)
                                        pcch-Config
                                            defaultPagingCycle: rf128 (2)
                                            nB: oneT (2)
                                        prach-Config
                                            rootSequenceIndex: 204
                                            prach-ConfigInfo
                                                prach-ConfigIndex: 4
                                                ..0. .... highSpeedFlag: False
                                                zeroCorrelationZoneConfig: 11
                                                prach-FreqOffset: 6
                                        pdsch-ConfigCommon
                                            referenceSignalPower: -3dBm
                                            p-b: 0
                                        pusch-ConfigCommon
                                            pusch-ConfigBasic
                                                n-SB: 1
                                                hoppingMode: interSubFrame (0)
                                                pusch-HoppingOffset: 6
                                                .0.. .... enable64QAM: False
                                            ul-ReferenceSignalsPUSCH
                                                ..0. .... groupHoppingEnabled: False
                                                groupAssignmentPUSCH: 0
                                                0... .... sequenceHoppingEnabled: False
                                                cyclicShift: 0
                                        pucch-ConfigCommon
                                            deltaPUCCH-Shift: ds2 (1)
                                            nRB-CQI: 1
                                            nCS-AN: 0
                                            n1PUCCH-AN: 11
                                        soundingRS-UL-ConfigCommon: setup (1)
                                            setup
                                                srs-BandwidthConfig: bw2 (2)
                                                srs-SubframeConfig: sc3 (3)
                                                .... 1... ackNackSRS-SimultaneousTransmission: True
                                        uplinkPowerControlCommon
                                            p0-NominalPUSCH: -85dBm
                                            alpha: al07 (4)
                                            p0-NominalPUCCH: -117dBm
                                            deltaFList-PUCCH
                                                deltaF-PUCCH-Format1: deltaF0 (1)
                                                deltaF-PUCCH-Format1b: deltaF3 (1)
                                                deltaF-PUCCH-Format2: deltaF1 (2)
                                                deltaF-PUCCH-Format2a: deltaF2 (2)
                                                deltaF-PUCCH-Format2b: deltaF2 (2)
                                            deltaPreambleMsg3: 8dB (4)
                                        ul-CyclicPrefixLength: len1 (0)
                                    ue-TimersAndConstants
                                        t300: ms200 (1)
                                        t301: ms200 (1)
                                        t310: ms200 (3)
                                        n310: n6 (4)
                                        t311: ms10000 (3)
                                        n311: n5 (4)
                                    freqInfo
                                        additionalSpectrumEmission: 1
                                    timeAlignmentTimerCommon: infinity (7)
                        Item 1
                            sib-TypeAndInfo item: sib3 (1)
                                sib3
                                    cellReselectionInfoCommon
                                        q-Hyst: dB2 (2)
                                    cellReselectionServingFreqInfo
                                        s-NonIntraSearch: 6dB (3)
                                        threshServingLow: 4dB (2)
                                        cellReselectionPriority: 6
                                    intraFreqCellReselectionInfo
                                        q-RxLevMin: -122dBm (-61)
                                        p-Max: 23dBm
                                        s-IntraSearch: 10dB (5)
                                        .... ..1. presenceAntennaPort1: True
                                        neighCellConfig: No MBSFN subframes are present in all neighbour cells (1)
                                        t-ReselectionEUTRA: 1s

终端发起NAS Attach

Non-Access-Stratum (NAS)PDU
0001 .... = Security header type: Integrity protected (1)
.... 0111 = Protocol discriminator: EPS mobility management messages (0x7)
Message authentication code: 0x00000000
Sequence number: 4
0000 .... = Security header type: Plain NAS message, not security protected (0)
.... 0111 = Protocol discriminator: EPS mobility management messages (0x7)
NAS EPS Mobility Management Message Type: Attach request (0x41)
0... .... = Type of security context flag (TSC): Native security context (for KSIasme)
.000 .... = NAS key set identifier:  (0)
.... 0... = Spare bit(s): 0x00
.... .001 = EPS attach type: EPS attach (1)
EPS mobile identity
    Length: 11
    .... 0... = Odd/even indication: Even number of identity digits
    .... .110 = Type of identity: GUTI (6)
    Mobile Country Code (MCC): Unknown (1)
    Mobile Network Code (MNC): Unknown (01)
    MME Group ID: 32769
    MME Code: 1
    M-TMSI: 0xaa057ccb
UE network capability
    Length: 5
    1... .... = EEA0: Supported
    .1.. .... = 128-EEA1: Supported
    ..1. .... = 128-EEA2: Supported
    ...0 .... = 128-EEA3: Not supported
    .... 0... = EEA4: Not supported
    .... .0.. = EEA5: Not supported
    .... ..0. = EEA6: Not supported
    .... ...0 = EEA7: Not supported
    1... .... = EIA0: Supported
    .1.. .... = 128-EIA1: Supported
    ..1. .... = 128-EIA2: Supported
    ...0 .... = 128-EIA3: Not supported
    .... 0... = EIA4: Not supported
    .... .0.. = EIA5: Not supported
    .... ..0. = EIA6: Not supported
    .... ...0 = EIA7: Not supported
    0... .... = UEA0: Not supported
    .0.. .... = UEA1: Not supported
    ..0. .... = UEA2: Not supported
    ...0 .... = UEA3: Not supported
    .... 0... = UEA4: Not supported
    .... .0.. = UEA5: Not supported
    .... ..0. = UEA6: Not supported
    .... ...0 = UEA7: Not supported
    0... .... = UCS2 support (UCS2): The UE has a preference for the default alphabet
    .0.. .... = UMTS integrity algorithm UIA1: Not supported
    ..0. .... = UMTS integrity algorithm UIA2: Not supported
    ...0 .... = UMTS integrity algorithm UIA3: Not supported
    .... 0... = UMTS integrity algorithm UIA4: Not supported
    .... .0.. = UMTS integrity algorithm UIA5: Not supported
    .... ..0. = UMTS integrity algorithm UIA6: Not supported
    .... ...0 = UMTS integrity algorithm UIA7: Not supported
    0... .... = ProSe direct discovery: Not supported
    .0.. .... = ProSe: Not supported
    ..0. .... = H.245 After SRVCC Handover: Not supported
    ...0 .... = Access class control for CSFB: Not supported
    .... 0... = LTE Positioning Protocol: Not supported
    .... .0.. = Location services (LCS) notification mechanisms: Not supported
    .... ..0. = SRVCC from E-UTRAN to cdma2000 1xCS: Not supported
    .... ...0 = Notification procedure: Not supported
ESM message container
    Length: 36
    ESM message container contents: 0203d011271d808021100100001081060000000083060000…
        0000 .... = EPS bearer identity: No EPS bearer identity assigned (0)
        .... 0010 = Protocol discriminator: EPS session management messages (0x2)
        Procedure transaction identity: 3
        NAS EPS session management messages: PDN connectivity request (0xd0)
        0001 .... = PDN type: IPv4 (1)
        .... 0001 = Request type: Initial request (1)
        Protocol Configuration Options
            Element ID: 0x27
            Length: 29
            [Link direction: MS to network (0)]
            1... .... = Extension: True
            .... .000 = Configuration Protocol: PPP for use with IP PDP type or IP PDN type (0)
            Protocol or Container ID: Internet Protocol Control Protocol (0x8021)
                Length: 0x10 (16)
                PPP IP Control Protocol
                    Code: Configuration Request (1)
                    Identifier: 0 (0x00)
                    Length: 16
                    Options: (12 bytes), Primary DNS Server IP Address, Secondary DNS Server IP Address
                        Primary DNS Server IP Address
                            Type: Primary DNS Server IP Address (129)
                            Length: 6
                            Primary DNS Address: 0.0.0.0
                        Secondary DNS Server IP Address
                            Type: Secondary DNS Server IP Address (131)
                            Length: 6
                            Secondary DNS Address: 0.0.0.0
            Protocol or Container ID: IP address allocation via NAS signalling (0x000a)
                Length: 0x00 (0)
            Protocol or Container ID: DNS Server IPv4 Address Request (0x000d)
                Length: 0x00 (0)
            Protocol or Container ID: IPv4 Link MTU Request (0x0010)
                Length: 0x00 (0)
        Device properties
            1100 .... = Element ID: 0xc-
            .... 000. = Spare bit(s): 0
            .... ...0 = Low priority: MS is not configured for NAS signalling low priority
Tracking area identity - Last visited registered TAI
    Element ID: 0x52
    Mobile Country Code (MCC): Unknown (1)
    Mobile Network Code (MNC): Unknown (01)
    Tracking area code(TAC): 1
Device properties
    1101 .... = Element ID: 0xd-
    .... 000. = Spare bit(s): 0
    .... ...0 = Low priority: MS is not configured for NAS signalling low priority
GUTI type - Old GUTI type
    1110 .... = Element ID: 0xe-
    .... 000. = Spare bit(s): 0x00
    .... ...0 = GUTI type: Native GUTI
MS network feature support
    1100 .... = Element ID: 0xc-
    .... 000. = Spare bit(s): 0
    .... ...1 = Extended periodic timers: MS supports the extended periodic timer in this domain

RRC Connection Request

    message: c1 (0)
    c1: rrcConnectionRequest (1)
        rrcConnectionRequest
            criticalExtensions: rrcConnectionRequest-r8 (0)
                rrcConnectionRequest-r8
                    ue-Identity: randomValue (1)
                        randomValue: c72a812e45 [bit length 40, 1100 0111  0010 1010  1000 0001  0010 1110  0100 0101 decimal value 855411600965]
                    establishmentCause: mo-Signalling (3)
                    spare: 00 [bit length 1, 7 LSB pad bits, 0... .... decimal value 0]

收到了微戎WR100发回来的RRC Connection Setup

DL-CCCH-Message
message: c1 (0)
    c1: rrcConnectionSetup (3)
        rrcConnectionSetup
            rrc-TransactionIdentifier: 0
            criticalExtensions: c1 (0)
                c1: rrcConnectionSetup-r8 (0)
                    rrcConnectionSetup-r8
                        radioResourceConfigDedicated
                            srb-ToAddModList: 1 item
                                Item 0
                                    SRB-ToAddMod
                                        srb-Identity: 1
                                        rlc-Config: explicitValue (0)
                                            explicitValue: am (0)
                                                am
                                                    ul-AM-RLC
                                                        t-PollRetransmit: ms60 (11)
                                                        pollPDU: pInfinity (7)
                                                        pollByte: kBinfinity (14)
                                                        maxRetxThreshold: t32 (7)
                                                    dl-AM-RLC
                                                        t-Reordering: ms45 (9)
                                                        t-StatusProhibit: ms0 (0)
                                        logicalChannelConfig: defaultValue (1)
                                            defaultValue: NULL
                            mac-MainConfig: explicitValue (0)
                                explicitValue
                                    ul-SCH-Config
                                        maxHARQ-Tx: n5 (4)
                                        periodicBSR-Timer: sf20 (3)
                                        retxBSR-Timer: sf320 (0)
                                        0... .... ttiBundling: False
                                    drx-Config: release (0)
                                        release: NULL
                                    timeAlignmentTimerDedicated: infinity (7)
                                    phr-Config: setup (1)
                                        setup
                                            periodicPHR-Timer: sf500 (5)
                                            prohibitPHR-Timer: sf200 (5)
                                            dl-PathlossChange: dB3 (1)
                            physicalConfigDedicated
                                pdsch-ConfigDedicated
                                    p-a: dB0 (4)
                                pucch-ConfigDedicated
                                    ackNackRepetition: release (0)
                                        release: NULL
                                    tdd-AckNackFeedbackMode: multiplexing (1)
                                pusch-ConfigDedicated
                                    betaOffset-ACK-Index: 9
                                    betaOffset-RI-Index: 6
                                    betaOffset-CQI-Index: 6
                                uplinkPowerControlDedicated
                                    p0-UE-PUSCH: 0dB
                                    deltaMCS-Enabled: en0 (0)
                                    .1.. .... accumulationEnabled: True
                                    p0-UE-PUCCH: 0dB
                                    pSRS-Offset: 3
                                cqi-ReportConfig
                                    nomPDSCH-RS-EPRE-Offset: 0dB (0)
                                    cqi-ReportPeriodic: setup (1)
                                        setup
                                            cqi-PUCCH-ResourceIndex: 0
                                            cqi-pmi-ConfigIndex: 68
                                            cqi-FormatIndicatorPeriodic: widebandCQI (0)
                                                widebandCQI: NULL
                                            .... ...0 simultaneousAckNackAndCQI: False
                                soundingRS-UL-ConfigDedicated: setup (1)
                                    setup
                                        srs-Bandwidth: bw2 (2)
                                        srs-HoppingBandwidth: hbw0 (0)
                                        freqDomainPosition: 0
                                        ..1. .... = duration: indefinite
                                        srs-ConfigIndex: 45
                                        transmissionComb: 0
                                        cyclicShift: cs0 (0)
                                schedulingRequestConfig: setup (1)
                                    setup
                                        sr-PUCCH-ResourceIndex: 0
                                        sr-ConfigIndex: 17
                                            [Periodicity: 20]
                                            [Subframe Offset: 2]
                                        dsr-TransMax: n64 (4)

CBRS终端上发RRC Connection Setup Complete

  message: c1 (0)
    c1: rrcConnectionSetupComplete (4)
        rrcConnectionSetupComplete
            rrc-TransactionIdentifier: 0
            criticalExtensions: c1 (0)
                c1: rrcConnectionSetupComplete-r8 (0)
                    rrcConnectionSetupComplete-r8
                        selectedPLMN-Identity: 1
                        registeredMME
                            mmegi: 8001 [bit length 16, 1000 0000  0000 0001 decimal value 32769]
                            mmec: 01 [bit length 8, 0000 0001 decimal value 1]
                        dedicatedInfoNAS: 175c4bb3fe040741010bf600f110800101aa057ccb05e0e0…
                            Non-Access-Stratum (NAS)PDU
                                0001 .... = Security header type: Integrity protected (1)
                                .... 0111 = Protocol discriminator: EPS mobility management messages (0x7)
                                Message authentication code: 0x5c4bb3fe
                                Sequence number: 4
                                0000 .... = Security header type: Plain NAS message, not security protected (0)
                                .... 0111 = Protocol discriminator: EPS mobility management messages (0x7)
                                NAS EPS Mobility Management Message Type: Attach request (0x41)
                                0... .... = Type of security context flag (TSC): Native security context (for KSIasme)
                                .000 .... = NAS key set identifier:  (0)
                                .... 0... = Spare bit(s): 0x00
                                .... .001 = EPS attach type: EPS attach (1)
                                EPS mobile identity
                                    Length: 11
                                    .... 0... = Odd/even indication: Even number of identity digits
                                    .... .110 = Type of identity: GUTI (6)
                                    Mobile Country Code (MCC): Unknown (1)
                                    Mobile Network Code (MNC): Unknown (01)
                                    MME Group ID: 32769
                                    MME Code: 1
                                    M-TMSI: 0xaa057ccb
                                UE network capability
                                    Length: 5
                                    1... .... = EEA0: Supported
                                    .1.. .... = 128-EEA1: Supported
                                    ..1. .... = 128-EEA2: Supported
                                    ...0 .... = 128-EEA3: Not supported
                                    .... 0... = EEA4: Not supported
                                    .... .0.. = EEA5: Not supported
                                    .... ..0. = EEA6: Not supported
                                    .... ...0 = EEA7: Not supported
                                    1... .... = EIA0: Supported
                                    .1.. .... = 128-EIA1: Supported
                                    ..1. .... = 128-EIA2: Supported
                                    ...0 .... = 128-EIA3: Not supported
                                    .... 0... = EIA4: Not supported
                                    .... .0.. = EIA5: Not supported
                                    .... ..0. = EIA6: Not supported
                                    .... ...0 = EIA7: Not supported
                                    0... .... = UEA0: Not supported
                                    .0.. .... = UEA1: Not supported
                                    ..0. .... = UEA2: Not supported
                                    ...0 .... = UEA3: Not supported
                                    .... 0... = UEA4: Not supported
                                    .... .0.. = UEA5: Not supported
                                    .... ..0. = UEA6: Not supported
                                    .... ...0 = UEA7: Not supported
                                    0... .... = UCS2 support (UCS2): The UE has a preference for the default alphabet
                                    .0.. .... = UMTS integrity algorithm UIA1: Not supported
                                    ..0. .... = UMTS integrity algorithm UIA2: Not supported
                                    ...0 .... = UMTS integrity algorithm UIA3: Not supported
                                    .... 0... = UMTS integrity algorithm UIA4: Not supported
                                    .... .0.. = UMTS integrity algorithm UIA5: Not supported
                                    .... ..0. = UMTS integrity algorithm UIA6: Not supported
                                    .... ...0 = UMTS integrity algorithm UIA7: Not supported
                                    0... .... = ProSe direct discovery: Not supported
                                    .0.. .... = ProSe: Not supported
                                    ..0. .... = H.245 After SRVCC Handover: Not supported
                                    ...0 .... = Access class control for CSFB: Not supported
                                    .... 0... = LTE Positioning Protocol: Not supported
                                    .... .0.. = Location services (LCS) notification mechanisms: Not supported
                                    .... ..0. = SRVCC from E-UTRAN to cdma2000 1xCS: Not supported
                                    .... ...0 = Notification procedure: Not supported
                                ESM message container
                                    Length: 36
                                    ESM message container contents: 0203d011271d808021100100001081060000000083060000…
                                        0000 .... = EPS bearer identity: No EPS bearer identity assigned (0)
                                        .... 0010 = Protocol discriminator: EPS session management messages (0x2)
                                        Procedure transaction identity: 3
                                        NAS EPS session management messages: PDN connectivity request (0xd0)
                                        0001 .... = PDN type: IPv4 (1)
                                        .... 0001 = Request type: Initial request (1)
                                        Protocol Configuration Options
                                            Element ID: 0x27
                                            Length: 29
                                            [Link direction: MS to network (0)]
                                            1... .... = Extension: True
                                            .... .000 = Configuration Protocol: PPP for use with IP PDP type or IP PDN type (0)
                                            Protocol or Container ID: Internet Protocol Control Protocol (0x8021)
                                                Length: 0x10 (16)
                                                PPP IP Control Protocol
                                                    Code: Configuration Request (1)
                                                    Identifier: 0 (0x00)
                                                    Length: 16
                                                    Options: (12 bytes), Primary DNS Server IP Address, Secondary DNS Server IP Address
                                                        Primary DNS Server IP Address
                                                            Type: Primary DNS Server IP Address (129)
                                                            Length: 6
                                                            Primary DNS Address: 0.0.0.0
                                                        Secondary DNS Server IP Address
                                                            Type: Secondary DNS Server IP Address (131)
                                                            Length: 6
                                                            Secondary DNS Address: 0.0.0.0
                                            Protocol or Container ID: IP address allocation via NAS signalling (0x000a)
                                                Length: 0x00 (0)
                                            Protocol or Container ID: DNS Server IPv4 Address Request (0x000d)
                                                Length: 0x00 (0)
                                            Protocol or Container ID: IPv4 Link MTU Request (0x0010)
                                                Length: 0x00 (0)
                                        Device properties
                                            1100 .... = Element ID: 0xc-
                                            .... 000. = Spare bit(s): 0
                                            .... ...0 = Low priority: MS is not configured for NAS signalling low priority
                                Tracking area identity - Last visited registered TAI
                                    Element ID: 0x52
                                    Mobile Country Code (MCC): Unknown (1)
                                    Mobile Network Code (MNC): Unknown (01)
                                    Tracking area code(TAC): 1
                                Device properties
                                    1101 .... = Element ID: 0xd-
                                    .... 000. = Spare bit(s): 0
                                    .... ...0 = Low priority: MS is not configured for NAS signalling low priority
                                GUTI type - Old GUTI type
                                    1110 .... = Element ID: 0xe-
                                    .... 000. = Spare bit(s): 0x00
                                    .... ...0 = GUTI type: Native GUTI
                                MS network feature support
                                    1100 .... = Element ID: 0xc-
                                    .... 000. = Spare bit(s): 0
                                    .... ...1 = Extended periodic timers: MS supports the extended periodic timer in this domain
                        nonCriticalExtension
                            nonCriticalExtension
                                gummei-Type-r10: native (0)

微戎WR100发起认证流程,下发Security Mode Command

   message: c1 (0)
    c1: securityModeCommand (6)
        securityModeCommand
            rrc-TransactionIdentifier: 0
            criticalExtensions: c1 (0)
                c1: securityModeCommand-r8 (0)
                    securityModeCommand-r8
                        securityConfigSMC
                            securityAlgorithmConfig
                                cipheringAlgorithm: eea0 (0)
                                integrityProtAlgorithm: eia2 (2)

CBRS终端回复Security Mode Complete

    message: c1 (0)
    c1: securityModeComplete (5)
        securityModeComplete
            rrc-TransactionIdentifier: 0
            criticalExtensions: securityModeComplete-r8 (0)
                securityModeComplete-r8

下一步进入能力协商,微戎WR100下发UE Capability Enquiry

message: c1 (0)
    c1: ueCapabilityEnquiry (7)
        ueCapabilityEnquiry
            rrc-TransactionIdentifier: 0
            criticalExtensions: c1 (0)
                c1: ueCapabilityEnquiry-r8 (0)
                    ueCapabilityEnquiry-r8
                        ue-CapabilityRequest: 1 item
                            Item 0
                                RAT-Type: eutra (0)

CBRS终端回复能力集Capability消息

UE-EUTRA-Capability
accessStratumRelease: rel10 (2)
ue-Category: 4
pdcp-Parameters
    supportedROHC-Profiles
        ...1 .... profile0x0001-r15: True
        .... 1... profile0x0002-r15: True
        .... .1.. profile0x0003-r15: True
        .... ..1. profile0x0004-r15: True
        .... ...0 profile0x0006-r15: False
        0... .... profile0x0101-r15: False
        .0.. .... profile0x0102-r15: False
        ..0. .... profile0x0103-r15: False
        ...0 .... profile0x0104-r15: False
    maxNumberROHC-ContextSessions: cs4 (1)
phyLayerParameters
    0... .... ue-TxAntennaSelectionSupported: False
    .0.. .... ue-SpecificRefSigsSupported: False
rf-Parameters
    supportedBandListEUTRA: 3 items
        Item 0
            SupportedBandEUTRA
                bandEUTRA: 48
                .... ..0. halfDuplex: False
        Item 1
            SupportedBandEUTRA
                bandEUTRA: 43
                .... .0.. halfDuplex: False
        Item 2
            SupportedBandEUTRA
                bandEUTRA: 42
                .... 0... halfDuplex: False
measParameters
    bandListEUTRA: 3 items
        Item 0
            BandInfoEUTRA
                interFreqBandList: 3 items
                    Item 0
                        InterFreqBandInfo
                            ..1. .... interFreqNeedForGaps: True
                        [bandEUTRA: 48 -> band 48]
                    Item 1
                        InterFreqBandInfo
                            ...1 .... interFreqNeedForGaps: True
                        [bandEUTRA: 48 -> band 43]
                    Item 2
                        InterFreqBandInfo
                            .... 1... interFreqNeedForGaps: True
                        [bandEUTRA: 48 -> band 42]
        Item 1
            BandInfoEUTRA
                interFreqBandList: 3 items
                    Item 0
                        InterFreqBandInfo
                            .... 1... interFreqNeedForGaps: True
                        [bandEUTRA: 43 -> band 48]
                    Item 1
                        InterFreqBandInfo
                            .... .1.. interFreqNeedForGaps: True
                        [bandEUTRA: 43 -> band 43]
                    Item 2
                        InterFreqBandInfo
                            .... ..1. interFreqNeedForGaps: True
                        [bandEUTRA: 43 -> band 42]
        Item 2
            BandInfoEUTRA
                interFreqBandList: 3 items
                    Item 0
                        InterFreqBandInfo
                            .... ..1. interFreqNeedForGaps: True
                        [bandEUTRA: 42 -> band 48]
                    Item 1
                        InterFreqBandInfo
                            .... ...1 interFreqNeedForGaps: True
                        [bandEUTRA: 42 -> band 43]
                    Item 2
                        InterFreqBandInfo
                            1... .... interFreqNeedForGaps: True
                        [bandEUTRA: 42 -> band 42]
featureGroupIndicators: fe0dd89a [bit length 32, 1111 1110  0000 1101  1101 1000  1001 1010 decimal value 4262320282]
    1... .... = Indicator 1: Intra-subframe freq hopping for PUSCH scheduled by UL grant; DCI format 3a; Aperiodic CQI/PMI/RI report on PUSCH: Mode 2-0 & 2-2 - Supported
    .1.. .... = Indicator 2: Simultaneous CQI & ACK/NACK on PUCCH (format 2a/2b); Absolute TPC command for PUSCH; Resource alloc type 1 for PDSCH; Periodic CQI/PMI/RI report on PUCCH: Mode 2-0 & 2-1 - Supported
    ..1. .... = Indicator 3: 5bit RLC UM SN; 7bit PDCP SN - Supported
    ...1 .... = Indicator 4: Short DRX cycle - Supported
    .... 1... = Indicator 5: Long DRX cycle; DRX command MAC control element - Supported
    .... .1.. = Indicator 6: Prioritised bit rate - Supported
    .... ..1. = Indicator 7: RLC UM - Supported
    .... ...0 = Indicator 8: EUTRA RRC_CONNECTED to UTRA CELL_DCH PS handover - Not supported
    0... .... = Indicator 9: EUTRA RRC_CONNECTED to GERAN GSM_Dedicated handover - Not Supported
    .0.. .... = Indicator 10: EUTRA RRC_CONNECTED to GERAN (Packet_) Idle by Cell Change Order; EUTRA RRC_CONNECTED to GERAN (Packet_) Idle by Cell Change Order with NACC - Not supported
    ..0. .... = Indicator 11: EUTRA RRC_CONNECTED to CDMA2000 1xRTT CS Active handover - Not supported
    ...0 .... = Indicator 12: EUTRA RRC_CONNECTED to CDMA2000 HRPD Active handover - Not supported
    .... 1... = Indicator 13: Inter-frequency handover (within FDD or TDD) - Supported
    .... .1.. = Indicator 14: Measurement reporting event: Event A4 - Neighbour > threshold; Measurement reporting event: Event A5 - Serving < threshold1 &Neighbour > threshold2 - Supported
    .... ..0. = Indicator 15: Measurement reporting event: Event B1 - Neighbour > threshold - Not supported
    .... ...1 = Indicator 16: non-ANR related periodical measurement reporting - Supported
    1... .... = Indicator 17: ANR related intra-frequency measurement reporting events - Supported
    .1.. .... = Indicator 18: ANR related inter-frequency measurement reporting events - Supported
    ..0. .... = Indicator 19: ANR related inter-RAT measurement reporting events - Not supported
    ...1 .... = Indicator 20: SRB1 and SRB2 for DCCH + 8x AM DRB; SRB1 and SRB2 for DCCH + 5x AM DRB + 3x UM DRB (if indicator 7 is supported) - Supported
    .... 1... = Indicator 21: Predefined intra- and inter-subframe frequency hopping for PUSCH with N_sb > 1; Predefined inter-subframe frequency hopping for PUSCH with N_sb > 1 - Supported
    .... .0.. = Indicator 22: UTRAN measurements, reporting and measurement reporting event B2 in E-UTRA connected mode - Not supported
    .... ..0. = Indicator 23: GERAN measurements, reporting and measurement reporting event B2 in E-UTRA connected mode - Not supported
    .... ...0 = Indicator 24: 1xRTT measurements, reporting and measurement reporting event B2 in E-UTRA connected mode - Not supported
    1... .... = Indicator 25: Inter-frequency measurements and reporting in E-UTRA connected mode - Supported
    .0.. .... = Indicator 26: HRPD measurements, reporting and measurement reporting event B2 in E-UTRA connected mode - Not supported
    ..0. .... = Indicator 27: EUTRA RRC_CONNECTED to UTRA CELL_DCH CS handover - Not supported
    ...1 .... = Indicator 28: TTI bundling - Supported
    .... 1... = Indicator 29: Semi-Persistent Scheduling - Supported
    .... .0.. = Indicator 30: Handover between FDD and TDD - Not supported
    .... ..1. = Indicator 31: Mechanisms defined for cells broadcasting multi band information - Supported
    .... ...0 = Indicator 32: Undefined - Not supported
interRAT-Parameters
nonCriticalExtension
    phyLayerParameters-v920
        enhancedDualLayerTDD-r9: supported (0)
    interRAT-ParametersGERAN-v920
    csg-ProximityIndicationParameters-r9
    neighCellSI-AcquisitionParameters-r9
        intraFreqSI-AcquisitionForHO-r9: supported (0)
        interFreqSI-AcquisitionForHO-r9: supported (0)
    son-Parameters-r9
        rach-Report-r9: supported (0)
    nonCriticalExtension
        lateNonCriticalExtension: 8000000000
            UE-EUTRA-Capability-v9a0-IEs
                featureGroupIndRel9Add-r9: 00000000 [bit length 32, 0000 0000  0000 0000  0000 0000  0000 0000 decimal value 0]
                    0... .... = Indicator 33: Inter-RAT ANR features for UTRAN FDD - Not supported
                    .0.. .... = Indicator 34: Inter-RAT ANR features for GERAN - Not supported
                    ..0. .... = Indicator 35: Inter-RAT ANR features for 1xRTT - Not supported
                    ...0 .... = Indicator 36: Inter-RAT ANR features for HRPD - Not supported
                    .... 0... = Indicator 37: Inter-RAT ANR features for UTRAN TDD - Not supported
                    .... .0.. = Indicator 38: EUTRA RRC_CONNECTED to UTRA TDD CELL_DCH PS handover - Not supported
                    .... ..0. = Indicator 39: UTRAN TDD measurements, reporting and measurement reporting event B2 in E-UTRA connected mode - Not supported
                    .... ...0 = Indicator 40: EUTRA RRC_CONNECTED to UTRA TDD CELL_DCH CS handover - Not supported
                    0... .... = Indicator 41: Measurement reporting event: Event B1 - Neighbour > threshold for UTRAN FDD - Not supported
                    .0.. .... = Indicator 42: DCI format 3a - Not supported
                    ..0. .... = Indicator 43: Undefined - Not supported
                    ...0 .... = Indicator 44: Undefined - Not supported
                    .... 0... = Indicator 45: Undefined - Not supported
                    .... .0.. = Indicator 46: Undefined - Not supported
                    .... ..0. = Indicator 47: Undefined - Not supported
                    .... ...0 = Indicator 48: Undefined - Not supported
                    0... .... = Indicator 49: Undefined - Not supported
                    .0.. .... = Indicator 50: Undefined - Not supported
                    ..0. .... = Indicator 51: Undefined - Not supported
                    ...0 .... = Indicator 52: Undefined - Not supported
                    .... 0... = Indicator 53: Undefined - Not supported
                    .... .0.. = Indicator 54: Undefined - Not supported
                    .... ..0. = Indicator 55: Undefined - Not supported
                    .... ...0 = Indicator 56: Undefined - Not supported
                    0... .... = Indicator 57: Undefined - Not supported
                    .0.. .... = Indicator 58: Undefined - Not supported
                    ..0. .... = Indicator 59: Undefined - Not supported
                    ...0 .... = Indicator 60: Undefined - Not supported
                    .... 0... = Indicator 61: Undefined - Not supported
                    .... .0.. = Indicator 62: Undefined - Not supported
                    .... ..0. = Indicator 63: Undefined - Not supported
                    .... ...0 = Indicator 64: Undefined - Not supported
        nonCriticalExtension
            phyLayerParameters-v1020
            featureGroupIndRel10-r10: 00000000 [bit length 32, 0000 0000  0000 0000  0000 0000  0000 0000 decimal value 0]
                0... .... = Indicator 101: DMRS with OCC (orthogonal cover code) and SGH (sequence group hopping) disabling - Not supported
                .0.. .... = Indicator 102: Trigger type 1 SRS (aperiodic SRS) transmission (Up to X ports) - Not supported
                ..0. .... = Indicator 103: PDSCH TM9 when up to 4 CSI reference signal ports are configured - Not supported
                ...0 .... = Indicator 104: PDSCH TM9 for TDD when 8 CSI reference signal ports are configured - Not supported
                .... 0... = Indicator 105: PUCCH RM2-0 when PDSCH TM9 is configured and RM2-1 when PDSCH TM9 and up to 4 CSI reference signal ports are configured - Not supported
                .... .0.. = Indicator 106: PUCCH RM2-1 when PDSCH TM9 and 8 CSI reference signal ports are configured - Not supported
                .... ..0. = Indicator 107: PUSCH RM2-0 when PDSCH TM9 is configured and RM2-2 when PDSCH TM9 and up to 4 CSI reference signal ports are configured - Not supported
                .... ...0 = Indicator 108: PUSCH RM2-2 when PDSCH TM9 and 8 CSI reference signal ports are configured - Not supported
                0... .... = Indicator 109: PUCCH RM1-1 submode 1 - Not supported
                .0.. .... = Indicator 110: PUCCH RM1-1 submode 2 - Not supported
                ..0. .... = Indicator 111: Measurement reporting trigger Event A6 - Not supported
                ...0 .... = Indicator 112: SCell addition within the Handover to EUTRA procedure - Not supported
                .... 0... = Indicator 113: Trigger type 0 SRS (periodic SRS) transmission on X Serving Cells - Not supported
                .... .0.. = Indicator 114: Reporting of both UTRA CPICH RSCP and Ec/N0 in a Measurement Report - Not supported
                .... ..0. = Indicator 115: Time domain ICIC RLM/RRM / ICIC RRM / ICIC CSI measurement sf restriction for the serving cell / neighbour cells - Not supported
                .... ...0 = Indicator 116: Relative transmit phase continuity for spatial multiplexing in UL - Not supported
                0... .... = Indicator 117: Undefined - Not supported
                .0.. .... = Indicator 118: Undefined - Not supported
                ..0. .... = Indicator 119: Undefined - Not supported
                ...0 .... = Indicator 120: Undefined - Not supported
                .... 0... = Indicator 121: Undefined - Not supported
                .... .0.. = Indicator 122: Undefined - Not supported
                .... ..0. = Indicator 123: Undefined - Not supported
                .... ...0 = Indicator 124: Undefined - Not supported
                0... .... = Indicator 125: Undefined - Not supported
                .0.. .... = Indicator 126: Undefined - Not supported
                ..0. .... = Indicator 127: Undefined - Not supported
                ...0 .... = Indicator 128: Undefined - Not supported
                .... 0... = Indicator 129: Undefined - Not supported
                .... .0.. = Indicator 130: Undefined - Not supported
                .... ..0. = Indicator 131: Undefined - Not supported
                .... ...0 = Indicator 132: Undefined - Not supported
            nonCriticalExtension
                nonCriticalExtension
                    nonCriticalExtension
                        pdcp-Parameters-v1130
                        rf-Parameters-v1130
                        measParameters-v1130
                        interRAT-ParametersCDMA2000-v1130
                        otherParameters-r11
                        nonCriticalExtension
                            nonCriticalExtension
                                nonCriticalExtension
                                    nonCriticalExtension
                                        measParameters-v1250
                                            extendedMaxMeasId-r12: supported (0)

终端发送UE Capability消息

 message: c1 (0)
   c1: ueCapabilityInformation (7)
       ueCapabilityInformation
           rrc-TransactionIdentifier: 0
           criticalExtensions: c1 (0)
               c1: ueCapabilityInformation-r8 (0)
                   ueCapabilityInformation-r8
                       ue-CapabilityRAT-ContainerList: 1 item
                           Item 0
                               UE-CapabilityRAT-Container
                                   rat-Type: eutra (0)
                                   ueCapabilityRAT-Container: c9be0102bd529040b82e0bff06ec4d00141b82c000000000…
                                       UE-EUTRA-Capability
                                           accessStratumRelease: rel10 (2)
                                           ue-Category: 4
                                           pdcp-Parameters
                                               supportedROHC-Profiles
                                                   ...1 .... profile0x0001-r15: True
                                                   .... 1... profile0x0002-r15: True
                                                   .... .1.. profile0x0003-r15: True
                                                   .... ..1. profile0x0004-r15: True
                                                   .... ...0 profile0x0006-r15: False
                                                   0... .... profile0x0101-r15: False
                                                   .0.. .... profile0x0102-r15: False
                                                   ..0. .... profile0x0103-r15: False
                                                   ...0 .... profile0x0104-r15: False
                                               maxNumberROHC-ContextSessions: cs4 (1)
                                           phyLayerParameters
                                               0... .... ue-TxAntennaSelectionSupported: False
                                               .0.. .... ue-SpecificRefSigsSupported: False
                                           rf-Parameters
                                               supportedBandListEUTRA: 3 items
                                                   Item 0
                                                       SupportedBandEUTRA
                                                           bandEUTRA: 48
                                                           .... ..0. halfDuplex: False
                                                   Item 1
                                                       SupportedBandEUTRA
                                                           bandEUTRA: 43
                                                           .... .0.. halfDuplex: False
                                                   Item 2
                                                       SupportedBandEUTRA
                                                           bandEUTRA: 42
                                                           .... 0... halfDuplex: False
                                           measParameters
                                               bandListEUTRA: 3 items
                                                   Item 0
                                                       BandInfoEUTRA
                                                           interFreqBandList: 3 items
                                                               Item 0
                                                                   InterFreqBandInfo
                                                                       ..1. .... interFreqNeedForGaps: True
                                                                   [bandEUTRA: 48 -> band 48]
                                                               Item 1
                                                                   InterFreqBandInfo
                                                                       ...1 .... interFreqNeedForGaps: True
                                                                   [bandEUTRA: 48 -> band 43]
                                                               Item 2
                                                                   InterFreqBandInfo
                                                                       .... 1... interFreqNeedForGaps: True
                                                                   [bandEUTRA: 48 -> band 42]
                                                   Item 1
                                                       BandInfoEUTRA
                                                           interFreqBandList: 3 items
                                                               Item 0
                                                                   InterFreqBandInfo
                                                                       .... 1... interFreqNeedForGaps: True
                                                                   [bandEUTRA: 43 -> band 48]
                                                               Item 1
                                                                   InterFreqBandInfo
                                                                       .... .1.. interFreqNeedForGaps: True
                                                                   [bandEUTRA: 43 -> band 43]
                                                               Item 2
                                                                   InterFreqBandInfo
                                                                       .... ..1. interFreqNeedForGaps: True
                                                                   [bandEUTRA: 43 -> band 42]
                                                   Item 2
                                                       BandInfoEUTRA
                                                           interFreqBandList: 3 items
                                                               Item 0
                                                                   InterFreqBandInfo
                                                                       .... ..1. interFreqNeedForGaps: True
                                                                   [bandEUTRA: 42 -> band 48]
                                                               Item 1
                                                                   InterFreqBandInfo
                                                                       .... ...1 interFreqNeedForGaps: True
                                                                   [bandEUTRA: 42 -> band 43]
                                                               Item 2
                                                                   InterFreqBandInfo
                                                                       1... .... interFreqNeedForGaps: True
                                                                   [bandEUTRA: 42 -> band 42]
                                           featureGroupIndicators: fe0dd89a [bit length 32, 1111 1110  0000 1101  1101 1000  1001 1010 decimal value 426232282]
                                               1... .... = Indicator 1: Intra-subframe freq hopping for PUSCH scheduled by UL grant; DCI format 3a; Aperiodc CQI/PMI/RI report on PUSCH: Mode 2-0 & 2-2 - Supported
                                               .1.. .... = Indicator 2: Simultaneous CQI & ACK/NACK on PUCCH (format 2a/2b); Absolute TPC command for PUSCH Resource alloc type 1 for PDSCH; Periodic CQI/PMI/RI report on PUCCH: Mode 2-0 & 2-1 - Supported
                                               ..1. .... = Indicator 3: 5bit RLC UM SN; 7bit PDCP SN - Supported
                                               ...1 .... = Indicator 4: Short DRX cycle - Supported
                                               .... 1... = Indicator 5: Long DRX cycle; DRX command MAC control element - Supported
                                               .... .1.. = Indicator 6: Prioritised bit rate - Supported
                                               .... ..1. = Indicator 7: RLC UM - Supported
                                               .... ...0 = Indicator 8: EUTRA RRC_CONNECTED to UTRA CELL_DCH PS handover - Not supported
                                               0... .... = Indicator 9: EUTRA RRC_CONNECTED to GERAN GSM_Dedicated handover - Not Supported
                                               .0.. .... = Indicator 10: EUTRA RRC_CONNECTED to GERAN (Packet_) Idle by Cell Change Order; EUTRA RRC_CONNECED to GERAN (Packet_) Idle by Cell Change Order with NACC - Not supported
                                               ..0. .... = Indicator 11: EUTRA RRC_CONNECTED to CDMA2000 1xRTT CS Active handover - Not supported
                                               ...0 .... = Indicator 12: EUTRA RRC_CONNECTED to CDMA2000 HRPD Active handover - Not supported
                                               .... 1... = Indicator 13: Inter-frequency handover (within FDD or TDD) - Supported
                                               .... .1.. = Indicator 14: Measurement reporting event: Event A4 - Neighbour > threshold; Measurement reportig event: Event A5 - Serving < threshold1 & Neighbour > threshold2 - Supported
                                               .... ..0. = Indicator 15: Measurement reporting event: Event B1 - Neighbour > threshold - Not supported
                                               .... ...1 = Indicator 16: non-ANR related periodical measurement reporting - Supported
                                               1... .... = Indicator 17: ANR related intra-frequency measurement reporting events - Supported
                                               .1.. .... = Indicator 18: ANR related inter-frequency measurement reporting events - Supported
                                               ..0. .... = Indicator 19: ANR related inter-RAT measurement reporting events - Not supported
                                               ...1 .... = Indicator 20: SRB1 and SRB2 for DCCH + 8x AM DRB; SRB1 and SRB2 for DCCH + 5x AM DRB + 3x UM DRB(if indicator 7 is supported) - Supported
                                               .... 1... = Indicator 21: Predefined intra- and inter-subframe frequency hopping for PUSCH with N_sb > 1; Prdefined inter-subframe frequency hopping for PUSCH with N_sb > 1 - Supported
                                               .... .0.. = Indicator 22: UTRAN measurements, reporting and measurement reporting event B2 in E-UTRA connectd mode - Not supported
                                               .... ..0. = Indicator 23: GERAN measurements, reporting and measurement reporting event B2 in E-UTRA connectd mode - Not supported
                                               .... ...0 = Indicator 24: 1xRTT measurements, reporting and measurement reporting event B2 in E-UTRA connectd mode - Not supported
                                               1... .... = Indicator 25: Inter-frequency measurements and reporting in E-UTRA connected mode - Supported
                                               .0.. .... = Indicator 26: HRPD measurements, reporting and measurement reporting event B2 in E-UTRA connecte mode - Not supported
                                               ..0. .... = Indicator 27: EUTRA RRC_CONNECTED to UTRA CELL_DCH CS handover - Not supported
                                               ...1 .... = Indicator 28: TTI bundling - Supported
                                               .... 1... = Indicator 29: Semi-Persistent Scheduling - Supported
                                               .... .0.. = Indicator 30: Handover between FDD and TDD - Not supported
                                               .... ..1. = Indicator 31: Mechanisms defined for cells broadcasting multi band information - Supported
                                               .... ...0 = Indicator 32: Undefined - Not supported
                                           interRAT-Parameters
                                           nonCriticalExtension
                                               phyLayerParameters-v920
                                                   enhancedDualLayerTDD-r9: supported (0)
                                               interRAT-ParametersGERAN-v920
                                               csg-ProximityIndicationParameters-r9
                                               neighCellSI-AcquisitionParameters-r9
                                                   intraFreqSI-AcquisitionForHO-r9: supported (0)
                                                   interFreqSI-AcquisitionForHO-r9: supported (0)
                                               son-Parameters-r9
                                                   rach-Report-r9: supported (0)
                                               nonCriticalExtension
                                                   lateNonCriticalExtension: 8000000000
                                                       UE-EUTRA-Capability-v9a0-IEs
                                                           featureGroupIndRel9Add-r9: 00000000 [bit length 32, 0000 0000  0000 0000  0000 0000  0000 0000 dcimal value 0]
                                                               0... .... = Indicator 33: Inter-RAT ANR features for UTRAN FDD - Not supported
                                                               .0.. .... = Indicator 34: Inter-RAT ANR features for GERAN - Not supported
                                                               ..0. .... = Indicator 35: Inter-RAT ANR features for 1xRTT - Not supported
                                                               ...0 .... = Indicator 36: Inter-RAT ANR features for HRPD - Not supported
                                                               .... 0... = Indicator 37: Inter-RAT ANR features for UTRAN TDD - Not supported
                                                               .... .0.. = Indicator 38: EUTRA RRC_CONNECTED to UTRA TDD CELL_DCH PS handover - Not supportd
                                                               .... ..0. = Indicator 39: UTRAN TDD measurements, reporting and measurement reporting event2 in E-UTRA connected mode - Not supported
                                                               .... ...0 = Indicator 40: EUTRA RRC_CONNECTED to UTRA TDD CELL_DCH CS handover - Not supportd
                                                               0... .... = Indicator 41: Measurement reporting event: Event B1 - Neighbour > threshold forTRAN FDD - Not supported
                                                               .0.. .... = Indicator 42: DCI format 3a - Not supported
                                                               ..0. .... = Indicator 43: Undefined - Not supported
                                                               ...0 .... = Indicator 44: Undefined - Not supported
                                                               .... 0... = Indicator 45: Undefined - Not supported
                                                               .... .0.. = Indicator 46: Undefined - Not supported
                                                               .... ..0. = Indicator 47: Undefined - Not supported
                                                               .... ...0 = Indicator 48: Undefined - Not supported
                                                               0... .... = Indicator 49: Undefined - Not supported
                                                               .0.. .... = Indicator 50: Undefined - Not supported
                                                               ..0. .... = Indicator 51: Undefined - Not supported
                                                               ...0 .... = Indicator 52: Undefined - Not supported
                                                               .... 0... = Indicator 53: Undefined - Not supported
                                                               .... .0.. = Indicator 54: Undefined - Not supported
                                                               .... ..0. = Indicator 55: Undefined - Not supported
                                                               .... ...0 = Indicator 56: Undefined - Not supported
                                                               0... .... = Indicator 57: Undefined - Not supported
                                                               .0.. .... = Indicator 58: Undefined - Not supported
                                                               ..0. .... = Indicator 59: Undefined - Not supported
                                                               ...0 .... = Indicator 60: Undefined - Not supported
                                                               .... 0... = Indicator 61: Undefined - Not supported
                                                               .... .0.. = Indicator 62: Undefined - Not supported
                                                               .... ..0. = Indicator 63: Undefined - Not supported
                                                               .... ...0 = Indicator 64: Undefined - Not supported
                                                   nonCriticalExtension
                                                       phyLayerParameters-v1020
                                                       featureGroupIndRel10-r10: 00000000 [bit length 32, 0000 0000  0000 0000  0000 0000  0000 0000 decima value 0]
                                                           0... .... = Indicator 101: DMRS with OCC (orthogonal cover code) and SGH (sequence group hopping disabling - Not supported
                                                           .0.. .... = Indicator 102: Trigger type 1 SRS (aperiodic SRS) transmission (Up to X ports) - Not supported
                                                           ..0. .... = Indicator 103: PDSCH TM9 when up to 4 CSI reference signal ports are configured - No supported
                                                           ...0 .... = Indicator 104: PDSCH TM9 for TDD when 8 CSI reference signal ports are configured -ot supported
                                                           .... 0... = Indicator 105: PUCCH RM2-0 when PDSCH TM9 is configured and RM2-1 when PDSCH TM9 andup to 4 CSI reference signal ports are configured - Not supported
                                                           .... .0.. = Indicator 106: PUCCH RM2-1 when PDSCH TM9 and 8 CSI reference signal ports are confiured - Not supported
                                                           .... ..0. = Indicator 107: PUSCH RM2-0 when PDSCH TM9 is configured and RM2-2 when PDSCH TM9 andup to 4 CSI reference signal ports are configured - Not supported
                                                           .... ...0 = Indicator 108: PUSCH RM2-2 when PDSCH TM9 and 8 CSI reference signal ports are confiured - Not supported
                                                           0... .... = Indicator 109: PUCCH RM1-1 submode 1 - Not supported
                                                           .0.. .... = Indicator 110: PUCCH RM1-1 submode 2 - Not supported
                                                           ..0. .... = Indicator 111: Measurement reporting trigger Event A6 - Not supported
                                                           ...0 .... = Indicator 112: SCell addition within the Handover to EUTRA procedure - Not supported

                                                           .... 0... = Indicator 113: Trigger type 0 SRS (periodic SRS) transmission on X Serving Cells - Nt supported
                                                           .... .0.. = Indicator 114: Reporting of both UTRA CPICH RSCP and Ec/N0 in a Measurement Report -Not supported
                                                           .... ..0. = Indicator 115: Time domain ICIC RLM/RRM / ICIC RRM / ICIC CSI measurement sf restricion for the serving cell / neighbour cells - Not supported
                                                           .... ...0 = Indicator 116: Relative transmit phase continuity for spatial multiplexing in UL - Nt supported
                                                           0... .... = Indicator 117: Undefined - Not supported
                                                           .0.. .... = Indicator 118: Undefined - Not supported
                                                           ..0. .... = Indicator 119: Undefined - Not supported
                                                           ...0 .... = Indicator 120: Undefined - Not supported
                                                           .... 0... = Indicator 121: Undefined - Not supported
                                                           .... .0.. = Indicator 122: Undefined - Not supported
                                                           .... ..0. = Indicator 123: Undefined - Not supported
                                                           .... ...0 = Indicator 124: Undefined - Not supported
                                                           0... .... = Indicator 125: Undefined - Not supported
                                                           .0.. .... = Indicator 126: Undefined - Not supported
                                                           ..0. .... = Indicator 127: Undefined - Not supported
                                                           ...0 .... = Indicator 128: Undefined - Not supported
                                                           .... 0... = Indicator 129: Undefined - Not supported
                                                           .... .0.. = Indicator 130: Undefined - Not supported
                                                           .... ..0. = Indicator 131: Undefined - Not supported
                                                           .... ...0 = Indicator 132: Undefined - Not supported
                                                       nonCriticalExtension
                                                           nonCriticalExtension
                                                               nonCriticalExtension
                                                                   pdcp-Parameters-v1130
                                                                   rf-Parameters-v1130
                                                                   measParameters-v1130
                                                                   interRAT-ParametersCDMA2000-v1130
                                                                   otherParameters-r11
                                                                   nonCriticalExtension
                                                                       nonCriticalExtension
                                                                           nonCriticalExtension
                                                                               nonCriticalExtension
                                                                                   measParameters-v1250
                                                                                       extendedMaxMeasId-r12: supported (0)

微戎WR100发送RRC Connection Reconfiguration

message: c1 (0)
    c1: rrcConnectionReconfiguration (4)
        rrcConnectionReconfiguration
            rrc-TransactionIdentifier: 0
            criticalExtensions: c1 (0)
                c1: rrcConnectionReconfiguration-r8 (0)
                    rrcConnectionReconfiguration-r8
                        dedicatedInfoNASList: 1 item
                            Item 0
                                DedicatedInfoNAS: 27bbed96950307420125060000f1100001003e5203c10109…
                                    Non-Access-Stratum (NAS)PDU
                                        0010 .... = Security header type: Integrity protected and ciphered (2)
                                        .... 0111 = Protocol discriminator: EPS mobility management messages (0x7)
                                        Message authentication code: 0xbbed9695
                                        Sequence number: 3
                                        0000 .... = Security header type: Plain NAS message, not security protected (0)
                                        .... 0111 = Protocol discriminator: EPS mobility management messages (0x7)
                                        NAS EPS Mobility Management Message Type: Attach accept (0x42)
                                        0000 .... = Spare half octet: 0
                                        .... 0... = Spare bit(s): 0x00
                                        .... .001 = Attach result: EPS only (1)
                                        GPRS Timer - T3412 value
                                            GPRS Timer: 5 min
                                                001. .... = Unit: value is incremented in multiples of 1 minute (1)
                                                ...0 0101 = Timer value: 5
                                        Tracking area identity list - TAI list
                                            Length: 6
                                            0... .... = Spare bit(s): 0x00
                                            .00. .... = Type of list: list of TACs belonging to one PLMN, with non-consecutive TAC values (0)
                                            ...0 0000 = Number of elements: 0 [+1 = 1 element(s)]
                                            Mobile Country Code (MCC): Unknown (1)
                                            Mobile Network Code (MNC): Unknown (01)
                                            Tracking area code(TAC): 1
                                        ESM message container
                                            Length: 62
                                            ESM message container contents: 5203c101091b0764656661756c74066d6e63303031066d63…
                                                0101 .... = EPS bearer identity: EPS bearer identity value 5 (5)
                                                .... 0010 = Protocol discriminator: EPS session management messages (0x2)
                                                Procedure transaction identity: 3
                                                NAS EPS session management messages: Activate default EPS bearer context request (0xc1)
                                                EPS quality of service
                                                    Length: 1
                                                    Quality of Service Class Identifier (QCI): QCI 9 (9)
                                                Access Point Name
                                                    Length: 27
                                                    APN: default.mnc001.mcc001.gprs
                                                PDN address
                                                    Length: 5
                                                    0000 0... = Spare bit(s): 0x00
                                                    PDN type: IPv4 (1)
                                                    PDN IPv4: 192.168.9.2
                                                Protocol Configuration Options
                                                    Element ID: 0x27
                                                    Length: 21
                                                    [Link direction: Network to MS (1)]
                                                    1... .... = Extension: True
                                                    .... .000 = Configuration Protocol: PPP for use with IP PDP type or IP PDN type (0)
                                                    Protocol or Container ID: Internet Protocol Control Protocol (0x8021)
                                                        Length: 0x0a (10)
                                                        PPP IP Control Protocol
                                                            Code: Configuration Nak (3)
                                                            Identifier: 0 (0x00)
                                                            Length: 10
                                                            Options: (6 bytes), Primary DNS Server IP Address
                                                                Primary DNS Server IP Address
                                                                    Type: Primary DNS Server IP Address (129)
                                                                    Length: 6
                                                                    Primary DNS Address: 202.96.134.133
                                                    Protocol or Container ID: DNS Server IPv4 Address (0x000d)
                                                        Length: 0x04 (4)
                                                        IPv4: 202.96.134.133
                                        EPS mobile identity - GUTI
                                            Element ID: 0x50
                                            Length: 11
                                            .... 0... = Odd/even indication: Even number of identity digits
                                            .... .110 = Type of identity: GUTI (6)
                                            Mobile Country Code (MCC): Unknown (1)
                                            Mobile Network Code (MNC): Unknown (01)
                                            MME Group ID: 32769
                                            MME Code: 1
                                            M-TMSI: 0xaa057ccb
                                        Emergency Number List
                                            Element ID: 0x34
                                            Length: 8
                                            Emergency Number Information: 1
                                                Emergency Number Info length: 3
                                                000. .... = Spare bit(s): 0
                                                ...1 .... = Mountain Rescue: True
                                                .... 1... = Marine Guard: True
                                                .... .1.. = Fire Brigade: True
                                                .... ..1. = Ambulance: True
                                                .... ...1 = Police: True
                                                Emergency BCD Number: 911
                                            Emergency Number Information: 2
                                                Emergency Number Info length: 3
                                                000. .... = Spare bit(s): 0
                                                ...1 .... = Mountain Rescue: True
                                                .... 1... = Marine Guard: True
                                                .... .1.. = Fire Brigade: True
                                                .... ..1. = Ambulance: True
                                                .... ...1 = Police: True
                                                Emergency BCD Number: 112
                                        EPS network feature support
                                            Element ID: 0x64
                                            Length: 1
                                            0... .... = Control plane CIoT EPS optimization: Not supported
                                            .0.. .... = EMM-REGISTERED w/o PDN connectivity: Not supported
                                            ..0. .... = Support of EXTENDED SERVICE REQUEST for packet services: Not supported
                                            ...0 0... = CS-LCS: no information about support of location services via CS domain is available (0)
                                            .... .0.. = Location services via EPC: Not supported
                                            .... ..0. = Emergency bearer services in S1 mode: Not supported
                                            .... ...1 = IMS voice over PS session in S1 mode: Supported
                        radioResourceConfigDedicated
                            srb-ToAddModList: 1 item
                                Item 0
                                    SRB-ToAddMod
                                        srb-Identity: 2
                                        rlc-Config: explicitValue (0)
                                            explicitValue: am (0)
                                                am
                                                    ul-AM-RLC
                                                        t-PollRetransmit: ms60 (11)
                                                        pollPDU: pInfinity (7)
                                                        pollByte: kBinfinity (14)
                                                        maxRetxThreshold: t32 (7)
                                                    dl-AM-RLC
                                                        t-Reordering: ms45 (9)
                                                        t-StatusProhibit: ms0 (0)
                                        logicalChannelConfig: defaultValue (1)
                                            defaultValue: NULL
                            drb-ToAddModList: 1 item
                                Item 0
                                    DRB-ToAddMod
                                        eps-BearerIdentity: 5
                                        drb-Identity: 1
                                        pdcp-Config
                                            discardTimer: infinity (7)
                                            rlc-AM
                                                ...1 .... statusReportRequired: True
                                            headerCompression: notUsed (0)
                                                notUsed: NULL
                                        rlc-Config: am (0)
                                            am
                                                ul-AM-RLC
                                                    t-PollRetransmit: ms80 (15)
                                                    pollPDU: p64 (4)
                                                    pollByte: kB125 (4)
                                                    maxRetxThreshold: t32 (7)
                                                dl-AM-RLC
                                                    t-Reordering: ms65 (13)
                                                    t-StatusProhibit: ms10 (2)
                                        logicalChannelIdentity: 3
                                        logicalChannelConfig
                                            ul-SpecificParameters
                                                priority: 15
                                                prioritisedBitRate: kBps8 (1)
                                                bucketSizeDuration: ms100 (1)
                                                logicalChannelGroup: 3
                            mac-MainConfig: explicitValue (0)
                                explicitValue
                                    drx-Config: setup (1)
                                        setup
                                            onDurationTimer: psf10 (7)
                                            drx-InactivityTimer: psf200 (15)
                                            drx-RetransmissionTimer: psf2 (1)
                                            longDRX-CycleStartOffset: sf320 (9)
                                                sf320: 31
                                            shortDRX
                                                shortDRX-Cycle: sf20 (5)
                                                drxShortCycleTimer: 1 shortDRX-Cycle
                                    timeAlignmentTimerDedicated: infinity (7)
                            physicalConfigDedicated
                                cqi-ReportConfig
                                    nomPDSCH-RS-EPRE-Offset: 0dB (0)
                                    cqi-ReportPeriodic: setup (1)
                                        setup
                                            cqi-PUCCH-ResourceIndex: 0
                                            cqi-pmi-ConfigIndex: 68
                                            cqi-FormatIndicatorPeriodic: widebandCQI (0)
                                                widebandCQI: NULL
                                            .1.. .... simultaneousAckNackAndCQI: True

CBRS终端发送RRC Connection Reconfiguration Complete

 message: c1 (0)
    c1: rrcConnectionReconfigurationComplete (2)
        rrcConnectionReconfigurationComplete
            rrc-TransactionIdentifier: 0
            criticalExtensions: rrcConnectionReconfigurationComplete-r8 (0)
                rrcConnectionReconfigurationComplete-r8

微戎WR100发送NAS Attach accept

Non-Access-Stratum (NAS)PDU
0010 .... = Security header type: Integrity protected and ciphered (2)
.... 0111 = Protocol discriminator: EPS mobility management messages (0x7)
Message authentication code: 0x00000000
Sequence number: 3
0000 .... = Security header type: Plain NAS message, not security protected (0)
.... 0111 = Protocol discriminator: EPS mobility management messages (0x7)
NAS EPS Mobility Management Message Type: Attach accept (0x42)
0000 .... = Spare half octet: 0
.... 0... = Spare bit(s): 0x00
.... .001 = Attach result: EPS only (1)
GPRS Timer - T3412 value
    GPRS Timer: 5 min
        001. .... = Unit: value is incremented in multiples of 1 minute (1)
        ...0 0101 = Timer value: 5
Tracking area identity list - TAI list
    Length: 6
    0... .... = Spare bit(s): 0x00
    .00. .... = Type of list: list of TACs belonging to one PLMN, with non-consecutive TAC values (0)
    ...0 0000 = Number of elements: 0 [+1 = 1 element(s)]
    Mobile Country Code (MCC): Unknown (1)
    Mobile Network Code (MNC): Unknown (01)
    Tracking area code(TAC): 1
ESM message container
    Length: 62
    ESM message container contents: 5203c101091b0764656661756c74066d6e63303031066d63…
        0101 .... = EPS bearer identity: EPS bearer identity value 5 (5)
        .... 0010 = Protocol discriminator: EPS session management messages (0x2)
        Procedure transaction identity: 3
        NAS EPS session management messages: Activate default EPS bearer context request (0xc1)
        EPS quality of service
            Length: 1
            Quality of Service Class Identifier (QCI): QCI 9 (9)
        Access Point Name
            Length: 27
            APN: default.mnc001.mcc001.gprs
        PDN address
            Length: 5
            0000 0... = Spare bit(s): 0x00
            PDN type: IPv4 (1)
            PDN IPv4: 192.168.9.2
        Protocol Configuration Options
            Element ID: 0x27
            Length: 21
            [Link direction: Network to MS (1)]
            1... .... = Extension: True
            .... .000 = Configuration Protocol: PPP for use with IP PDP type or IP PDN type (0)
            Protocol or Container ID: Internet Protocol Control Protocol (0x8021)
                Length: 0x0a (10)
                PPP IP Control Protocol
                    Code: Configuration Nak (3)
                    Identifier: 0 (0x00)
                    Length: 10
                    Options: (6 bytes), Primary DNS Server IP Address
                        Primary DNS Server IP Address
                            Type: Primary DNS Server IP Address (129)
                            Length: 6
                            Primary DNS Address: 202.96.134.133
            Protocol or Container ID: DNS Server IPv4 Address (0x000d)
                Length: 0x04 (4)
                IPv4: 202.96.134.133
EPS mobile identity - GUTI
    Element ID: 0x50
    Length: 11
    .... 0... = Odd/even indication: Even number of identity digits
    .... .110 = Type of identity: GUTI (6)
    Mobile Country Code (MCC): Unknown (1)
    Mobile Network Code (MNC): Unknown (01)
    MME Group ID: 32769
    MME Code: 1
    M-TMSI: 0xaa057ccb
Emergency Number List
    Element ID: 0x34
    Length: 8
    Emergency Number Information: 1
        Emergency Number Info length: 3
        000. .... = Spare bit(s): 0
        ...1 .... = Mountain Rescue: True
        .... 1... = Marine Guard: True
        .... .1.. = Fire Brigade: True
        .... ..1. = Ambulance: True
        .... ...1 = Police: True
        Emergency BCD Number: 911
    Emergency Number Information: 2
        Emergency Number Info length: 3
        000. .... = Spare bit(s): 0
        ...1 .... = Mountain Rescue: True
        .... 1... = Marine Guard: True
        .... .1.. = Fire Brigade: True
        .... ..1. = Ambulance: True
        .... ...1 = Police: True
        Emergency BCD Number: 112
EPS network feature support
    Element ID: 0x64
    Length: 1
    0... .... = Control plane CIoT EPS optimization: Not supported
    .0.. .... = EMM-REGISTERED w/o PDN connectivity: Not supported
    ..0. .... = Support of EXTENDED SERVICE REQUEST for packet services: Not supported
    ...0 0... = CS-LCS: no information about support of location services via CS domain is available (0)
    .... .0.. = Location services via EPC: Not supported
    .... ..0. = Emergency bearer services in S1 mode: Not supported
    .... ...1 = IMS voice over PS session in S1 mode: Supported

CBRS终端回复NAS Attach complete,至此终端入网成功

Non-Access-Stratum (NAS)PDU
0010 .... = Security header type: Integrity protected and ciphered (2)
.... 0111 = Protocol discriminator: EPS mobility management messages (0x7)
Message authentication code: 0x00000000
Sequence number: 5
0000 .... = Security header type: Plain NAS message, not security protected (0)
.... 0111 = Protocol discriminator: EPS mobility management messages (0x7)
NAS EPS Mobility Management Message Type: Attach complete (0x43)
ESM message container
    Length: 3
    ESM message container contents: 5200c2
        0101 .... = EPS bearer identity: EPS bearer identity value 5 (5)
        .... 0010 = Protocol discriminator: EPS session management messages (0x2)
        Procedure transaction identity: 0
        NAS EPS session management messages: Activate default EPS bearer context accept (0xc2)

CBRS终端收到微戎WR100下发的NAS EMM information,这个消息包含了网络名称和时间信息。

Non-Access-Stratum (NAS)PDU
0010 .... = Security header type: Integrity protected and ciphered (2)
.... 0111 = Protocol discriminator: EPS mobility management messages (0x7)
Message authentication code: 0x00000000
Sequence number: 4
0000 .... = Security header type: Plain NAS message, not security protected (0)
.... 0111 = Protocol discriminator: EPS mobility management messages (0x7)
NAS EPS Mobility Management Message Type: EMM information (0x61)
Network Name - Full name for network
    Element ID: 0x43
    Length: 14
    1... .... = Extension: No Extension
    .000 .... = Coding Scheme: Cell Broadcast data coding scheme, GSM default alphabet, language unspecified, defined in 3GPP TS 23.038 (0)
    .... 0... = Add CI: The MS should not add the letters for the Country's Initials to the text string
    .... .110 = Number of spare bits in last octet: bits 3 to 8(inclusive) are spare and set to '0' in octet n (6)
    Text String: Weiron Network
Network Name - Short Name
    Element ID: 0x45
    Length: 7
    1... .... = Extension: No Extension
    .000 .... = Coding Scheme: Cell Broadcast data coding scheme, GSM default alphabet, language unspecified, defined in 3GPP TS 23.038 (0)
    .... 0... = Add CI: The MS should not add the letters for the Country's Initials to the text string
    .... .110 = Number of spare bits in last octet: bits 3 to 8(inclusive) are spare and set to '0' in octet n (6)
    Text String: Weiron
Time Zone - Local
    Element ID: 0x46
    Timezone: GMT + 0 hours 0 minutes
Time Zone and Time - Universal Time and Local Time Zone
    Element ID: 0x47
    Time: Aug 24, 2019 14:34:42.000000000
    Timezone: GMT + 0 hours 0 minutes
Daylight Saving Time
    Element ID: 0x49
    Length: 1
    0000 00.. = Spare bit(s): 0
    .... ..00 = DST Adjustment: No adjustment for Daylight Saving Time (0)

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