FlexWave ® CPRI Digital Interface Unit Installation and Provisioning Guide • FWPP-507-03 • September 2017 FWD NOT TO EXCEED +6 dBm FAN SeRF II NETWORK CRAFT DC POWER CDIU CDIU CDIU CPRI PORT 1 CPRI PORT 2 CPRI PORT 1 CPRI PORT 2 CPRI PORT 1 CPRI PORT 2 CRAFT CRAFT CRAFT REF OUT REF OUT REF OUT PATH A PATH B CONFIG PWR PATH A PATH B CONFIG PWR PATH A PATH B CONFIG PWR REV RF OUT REV RF OUT PWR STATUS PWR STATUS FWD REF IN NOKIA NOKIA NOKIA FWD NOT TO EXCEED +6 dBm FWD REF IN
Transcript
FlexWave® CPRI Digital Interface Unit
Installation and Provisioning Guide • FWPP-507-03 • September 2017
TABLE OF CONTENTSDocument Overview...............................................................................................................................................................................................1
Document Revision History ........................................................................................................................................................................................1Document Cautions and Notes ..................................................................................................................................................................................1Abbreviations Used in this Guide ...............................................................................................................................................................................2
CPRI Digital Interface Unit Overview ......................................................................................................................................................................3CDIU Connectors ........................................................................................................................................................................................................4CDIU LEDs ...................................................................................................................................................................................................................5Signal-Routing Options between the CDIU and RF Paths...........................................................................................................................................6CDIU/LTE Uplink Gain Overview.................................................................................................................................................................................8
Uplink Gain Configuration ..................................................................................................................................................................................8Uplink Power Reports.........................................................................................................................................................................................8
Using CDIUs in a Multi-Host System.........................................................................................................................................................................12Working with Hops in a Multi-Host System .....................................................................................................................................................12Rules for CDIUs in a Multi-Host System ...........................................................................................................................................................13
Installing a CDIU ...................................................................................................................................................................................................15Using the FlexWave EMS with CDIUs .......................................................................................................................................................................15
Identifying CDIUs in the EMS GUI.....................................................................................................................................................................15Identifying WCDMA in the EMS GUI.................................................................................................................................................................15
Safety Precautions....................................................................................................................................................................................................16Guard against Damage from Electro-Static Discharge .............................................................................................................................................16Unpack and Inspect the CDIU...................................................................................................................................................................................16Install the CDIU(s) in the Host Unit Chassis ..............................................................................................................................................................17Connect the Reference Clock ...................................................................................................................................................................................18Set the Host Unit Clock to External ..........................................................................................................................................................................20Configure the CDIU to BBU Interface .......................................................................................................................................................................21
CDIU Interfaces Page Read-Only Fields ............................................................................................................................................................22The Effect of Linked CDIUs on the Configure CDIU Interfaces Page.................................................................................................................23CDIU Path Bands...............................................................................................................................................................................................24CDIU Path A and Path B Timeslot Configurations.............................................................................................................................................25
Basic Timeslot Rules .................................................................................................................................................................................25Constraints on 1900 PCS SGL or 2100 AWS Dual-Band Configurations....................................................................................................25
Setting the CDIU Interface Parameters ............................................................................................................................................................26Provision the System Links .......................................................................................................................................................................................29
Using the Provision System Pages....................................................................................................................................................................30CDIU and Host DART Summing.........................................................................................................................................................................34
Linking CDIUs to Remote Units.........................................................................................................................................................................35Using the Linking Table.............................................................................................................................................................................36Using Passband Selection Panels..............................................................................................................................................................38Using the Established Links Table.............................................................................................................................................................39Linking CDIU(s) to Remote DART(s) ..........................................................................................................................................................39
Set the Forward RF ...........................................................................................................................................................................................41Working with Input Power in the Forward RF Page .................................................................................................................................42Set the Forward RF for Connection Types 1 and 2 ...................................................................................................................................44Set the Forward RF for Connection Types 3, 4, and 5 ..............................................................................................................................47Viewing the CDIU Antenna Carriers Table on the Forward RF Page ........................................................................................................50
Set the Reverse RF............................................................................................................................................................................................51Configuring the Reverse RF ......................................................................................................................................................................52Viewing the CDIU Antenna Carriers Table on the Reverse RF Page .........................................................................................................53
Configure Delay ................................................................................................................................................................................................55Forward Delay and Reverse Delay for a CDIU System..............................................................................................................................56Working with CDIU Forward and Reverse Delays ....................................................................................................................................57Changes to Make at an ALU BBU for LTE Systems....................................................................................................................................57Setting the DAS Delay for a CDIU .............................................................................................................................................................58
Working with a Delay Compensation Alarm at the BBU ..................................................................................................................................61BBU Delay Compensation Alarm when a CDIU Delay Setting Exceeds BBU Maximum Delay..................................................................61BBU Delay Compensation Alarm when a CDIU Delay Setting Exceeds FlexWave Maximum...................................................................62
Connect the CDIU to the BBU...................................................................................................................................................................................63Check the CDIU for Input Power from the BBU................................................................................................................................................65
Checking BBU Input Power for CDIU Connection Types 1 and 2..............................................................................................................65Checking BBU Input Power for Connection Types 3, 4, and 5 ..................................................................................................................66
Check the CDIU for Output Power to the BBU .................................................................................................................................................67CDIU Temperature as Reported by the BBU ............................................................................................................................................................67
Managing CDIUs...................................................................................................................................................................................................68Powering Up CDIUs ..................................................................................................................................................................................................68Generate a Test Tone ...............................................................................................................................................................................................68Using the Unit Information Pages ............................................................................................................................................................................69
View the CDIU(s) Installed in the Host Unit......................................................................................................................................................69View the CDIU Status........................................................................................................................................................................................70
CDIU CPRI Ports Status Table....................................................................................................................................................................70CDIU Path Status Table.............................................................................................................................................................................71
View Information about CDIU Antenna Carriers ..............................................................................................................................................72Elements of a CDIU Antenna Carriers Table .............................................................................................................................................72Viewing the CDIU Antenna Carriers Table on the View CDIU Antenna Carriers Page..............................................................................73Viewing the CDIU Antenna Carriers Table in the Get Information CDIU Antenna Carriers Report..........................................................73
Using the Get Information Reports ..........................................................................................................................................................................74View Information about the CDIU Hardware ...................................................................................................................................................74View a Links Report ..........................................................................................................................................................................................75View a Link Delays Report ................................................................................................................................................................................77View a Forward RF Report................................................................................................................................................................................78View a Reverse RF Report ................................................................................................................................................................................80View a CDIU Interfaces Report .........................................................................................................................................................................82View a CDIU Antenna Carriers Report..............................................................................................................................................................83
Unlink a CDIU............................................................................................................................................................................................................84Clear a CDIU Configuration.......................................................................................................................................................................................85Replacing a CDIU with One or More DARTs .............................................................................................................................................................86Replacing One or More DARTs with a CDIU .............................................................................................................................................................86
Working with CDIU Alarms ...................................................................................................................................................................................88Using the Manage Alarms Table...............................................................................................................................................................................88Enable and Disable CDIU Alarms ..............................................................................................................................................................................90CDIU Alarms that Can Be Enabled/Disabled.............................................................................................................................................................91
Commissioning CDIUs in a Host-to-Host Configuration .........................................................................................................................................92Configuring the HEU Downlink.................................................................................................................................................................................93Configuring an Uplink Cascade.................................................................................................................................................................................94
Provisioning an Uplink Cascade........................................................................................................................................................................94Option 1—Uplink Cascade via Noise Matching ................................................................................................................................................95Option 2—Uplink Cascade via Dynamic Range Optimized...............................................................................................................................96Example CDIU H2H Configurations...................................................................................................................................................................97Verifying the Uplink Cascade............................................................................................................................................................................97
Total System Delay for LTE Systems.........................................................................................................................................................................98Total System Delay for UMTS Systems.....................................................................................................................................................................98
CDIU Maintenance Guidance................................................................................................................................................................................99Maintenance Activities Known to Break BBU-to-CDIU Links....................................................................................................................................99Determining CDIU Isolation by the BBU...................................................................................................................................................................99Recovery if the BBU Isolates the CDIU/RRH.............................................................................................................................................................99
CDIU Alarm Reference........................................................................................................................................................................................100CDIU and FlexWave Interface Alarms.....................................................................................................................................................................101CDIU and BBU Interface Alarms .............................................................................................................................................................................108
Specifications and Standards Certification..........................................................................................................................................................118Optical Specifications .............................................................................................................................................................................................118Standards Certification...........................................................................................................................................................................................118
Contacting CommScope......................................................................................................................................................................................119DCCS Global Technical Support ..............................................................................................................................................................................119
Telephone Helplines.......................................................................................................................................................................................119Online Support ...............................................................................................................................................................................................119
Waste Electrical and Electronic Equipment Recycling ...........................................................................................................................................119DCCS Technical Training .........................................................................................................................................................................................120Accessing FlexWave User Documentation .............................................................................................................................................................120
Accessing Prism User Documentation............................................................................................................................................................121Accessing Spectrum User Documentation .....................................................................................................................................................121
ThisguideprovidestheinformationyouneedtoinstallaFlexWave®CPRIDigitalInterfaceUnitintoaFlexWaveHostUnit,andhowtousetheFlexWaveElementManagementSoftwaretoprovisiontheCDIUsystem.NOTE: Throughout this guide, the use of “REC” (Radio Equipment Controller) is synonymous with the BBU.ThisinstallationguideiscompatiblewiththeunitslistedinTable1;theproductslistedinTable1canbeusedinbothPrismandSpectrumsystems.
• adds"WasteElectricalandElectronicEquipmentRecycling”onpage119.DOCUMENT CAUTIONS AND NOTESTwotypesofmessages,identifiedbelow,appearinthetext:
CAUTION! Cautions indicate operations or steps that could cause personal injury, induce a safety problem in a managed device, destroy or corrupt information, or interrupt or stop services.
NOTE: Notes contain information about special circumstances.
Table 1. Supported FlexWave Units
Catalog Number Description
FWP-00000HUII Host Unit Chassis II*
FWP-NEBS3HUII Host Unit Chassis II - NEBS Level 3 Compliant*
FWP-CDIU-01 CPRI Digital Interface Unit
* A CDIU requires a Host System III Module (FWP-000HUSYSIII) in the Host Unit. The Chassis II and the NEBS Level 3 Compliant Host Units both ship with the Host System III Module pre-installed at the factory.
CPRI DIGITAL INTERFACE UNIT O VERVIEWCommScopeFlexWavesystemsdistributesignalsfromacommonRFsource(basestation)tomultipleRemoteUnits.ADigital-AnalogRadioTransceiver(DART)cardprovidestheinterfacebetweenthebasestationRFsignals(bothuplinkanddownlink)anddigitalbasebandrepresentationsofthosesignals,whicharetransportedbetweentheDASHostandRemoteUnitviaadigitalSerialRF(SeRF)protocol.TointerfacetheDAStoadigitalbasebandunit(BBU)ratherthananRFbasestation,aCPRIDigitalInterfaceUnit(CDIU)willneedtobepopulatedintheFlexWaveDASHostUnitchassisinoneormoreslotsoriginallyprovisionedforRFDARTs.CDIUsupportsuptotwocarriersofLTEandupto2carriersforUMTS.(TheFlexWaveEMSusesthetermUMTSinsteadofWCDMAinitsfieldsandparameters.)Figure1illustratesaFlexWaveHostUnitthathasbothCDIUsandDARTs.EachCDIUrequirestwoslotspaces,andcanonlybeinstalledinthefollowingslotcombinations:• 1and3• 2and4• 5and7• 6and8.
Figure 1. CDIUs Installed in a FlexWave Host Unit
Fan Module SeRF II Module
Host System III Module* DC PowerModule
CDIU in Slots 1, 2, and 5.RF DARTs in Slots 6 and 8.* The CDIU requires that a Host System Board III
SFP/SFP+ connectors that while MSA compliant, are a specific line rate offered by Nokia. Maximum transceiver power per CPRI Port is 2W.
Two connectors for single-mode fiber (one per CPRI link) where one is Tx and the other is Rx.
2 Craft Mini-USB to serial port connection. Functionality reserved for use by CommScope or Nokia.
3 REF OUT 50-Ohm QMA-F connector 10 MHz reference clock output that is derived from either the CPRI Port 1 or the CPRI Port 2 connector. Connects to the FlexWave Host System III Module.
Amber Receiver detects light, but is not locked or is not framed to incoming signal.
Green Receiver is locked and framed to the incoming signal.
TX Off There is no SFP inserted in this TX connector.
Red An SFP is installed in this TX connector, but the internal FPGA PLL has not locked (this is highly unlikely).
Green An SFP is installed in this TX connector, and the internal FPGA PLL is locked.
2, 3 PATH A and PATH B
Off CDIU Path A/B is not linked. On startup, Path A/B is defaulted by the FPGA to be Off.
Amber* The DAS user has configured CDIU Path A/B, but the BBU has not provisioned the Path A/B Antenna Carriers.
Green The DAS user has configured CDIU Path A/B, and the BBU has provisioned the Path A/B Antenna Carriers. For CDIU Connection Types 3, 4, and 5, the CDIU PATH A and PATH B LEDs will not turn green until Antenna Carriers are present for both CPRI ports.
4 CONFIG Off FPGA files are not present; error may have occurred during a software upgrade.
Red* FPGA has loaded, but the processor has not booted, which indicates a file corruption or hardware problem.
Amber* CDIU is still booting or not booting correctly; CDIU is therefore not communicating with the BBU.
Green FPGA is configured, and the master processor is running per specification.
5 PWR Off CDIU is not receiving power from the backplane, or there has been a power-on failure.
Red One or more of the internal power rails is out of tolerance.
Green All power rails are present and in-tolerance.
* If the CONFIG LED remains red or amber, there may be file corruption or a missing file; check for an active CDIU configuration fault alarm and follow the alarm remedy. If alarm remedy does not turn the CONFIG LED green, contact CommScope for assistance (see "DCCS Global Technical Support” on page 119).
2
3
4
5
1Tx
Rx
Rx
Tx
LEDs for SFP in CPRI Port 1LEDs for SFP in CPRI Port 2
SIGNAL-ROUTING OPTIONS BETWEEN THE CDIU AND RF PATHSTable2describesthesupportedsignal-routingoptionsbetweentwoCPRIportsandtwoRFpaths.Table 2. CPRI to RF Path Mapping
Configuration Type Description Mapping Diagram
Type 1CPRI Ports: 1 and/or 2Carrier Configuration: SISO, SISORF Paths: 1 or 2RF Bands: 1 or 2
Type 1 is for Dual Independent SISO—both CPRI Port 1 and CPRI Port 2 map to a single RF path. The two RF paths can be in different RF bands. Note that with the Type 1 mapping, you will configure CPRI Port 1 and CPRI Port 2 independently from each other.
Type 2CPRI Port: 1Carrier Configuration: MIMORF Paths: 2RF Bands: 1
Type 2 is for Single MIMO—one CPRI port maps to two RF paths—that must be in the same band—for MIMO deployment.NOTE: Only Port 1 is allowed in Type 2.
Port 2 is disabled.
Type 3 CPRI Ports: 1 and 2Carrier Configuration: SISO, SISORF Paths: 1RF Bands: 1
Type 3 is for Summed SISO—sums carriers from two CPRI links into a single RF path.Applications include placing LTE and WCDMA carriers (from separate BBUs) in a single RF band, and two WSPs summing into the same RF Band.NOTE: The passband selected for
Types 3, 4, or 5 must be sufficient to accommodate the antenna carriers from both CPRI ports. For example, when using Type 5, if AWS Block A is on Port 1 and AWS Block B/C is on Port 2, then the passband on Paths A and Path B must both be tuned to AWS A/B/C. This applies for any of the summed connections (Types 3, 4, and 5).
Type 4 CPRI Ports: 1 and 2Carrier Configuration: MIMO, SISORF Paths: 2RF Bands: 1
Type 4 is for MIMO + Summed SISO—this configuration combines Single MIMO with Summed SISO:• CPRI Port 1 maps to both Path A and
Path B—that must be in the same band—for MIMO deployment.
• CPRI Port 2 maps to Path A only NOTE: This application supports
placement of SISO WCDMA carriers in the same RF band as CPRI Port 1.
NOTE: The passband selected for Types 3, 4, or 5 must be sufficient to accommodate the antenna carriers from both CPRI ports. For example, when using Type 5, if AWS Block A is on Port 1 and AWS Block B/C is on Port 2, then the passband on Paths A and Path B must both be tuned to AWS A/B/C. This applies for any of the summed connections (Types 3, 4, and 5).
Type 5 CPRI Ports: 1 and 2Carrier Configuration: MIMO, MIMORF Paths: 2RF Bands: 1
Type 5 is for Dual-Summed MIMO—it combines MIMO channels from both CPRI Port 1 and CPRI Port 2 and maps them to common (dual) RF paths. For example, you can combine LTE5 and LTE10 MIMO channels in the same RF band, as would occur when multiple WSPs are in the same RF band (i.e., Neutral Host).NOTE: The passband selected for
Types 3, 4, or 5 must be sufficient to accommodate the antenna carriers from both CPRI ports. For example, when using Type 5, if AWS Block A is on Port 1 and AWS Block B/C is on Port 2, then the passband on Paths A and Path B must both be tuned to AWS A/B/C. This applies for any of the summed connections (Types 3, 4, and 5).
CDIU/LTE UPLINK GAIN OVERVIEWThissectiondescribeshowtheCDIUcalculatestheuplinkgainforLTE.Uplink Gain ConfigurationInanLTEsystem,theCDIUautomaticallyadjuststheuplinkgaintoachievetheBBUrequestedNoiseFloor,whichisalwayssetto-64.42dBFS.TocalculatethesystemNoiseFigure,theCDIUconsidersthefollowing:
• whethertheproductplatformisPrism,Spectrum,orCommonHost• whethertheHost Gain ModeissettoNormalorHigh(see"SettheReverseRF”onpage51)• whattheRAUcount(1to8)isforeachExpansionModuleGroupinaSpectrumsystem• whetherthesystemisconfiguredforsimulcast;a“simulcastsystem”iswhentherearemultipleRemoteDARTsconnectedtothesameHostDART• whatthebandwidthoftheprotocolis(LTE5,LTE10,LTE15,orLTE20).
Uplink Power ReportsTheFlexWaveEMSGUIprovidesanuplinkpowerreportthatindicatestheuplinkpowerintotheRemoteUnitontheReverse RFpage(System Configuration > Provision System > Reverse RF),forCDIUs,refertothePower (dBm) Current CompositecolumnintheReverse Link Budget (CDIU)tableasshowninFigure2.
Figure 2. Reverse Link Budget (CDIU) Table in the Reverse RF Page
NOTE: You can also view the Reverse Link Budget (CDIU) table in the Reverse RF report (System Configuration > Get Information > Type > Reverse RF). However, the Get Information tables are read only. By using the Reverse Link Budget (CDIU) table in the Reverse RF page, you can change settings if necessary.
Fornoiseonlyinputs,theexpectedpowerlevelcanbedeterminedbytheequationshowninFigure3.UseTable3tocalculatekTB(thermalnoise)withoutNoiseFigureasafunctionofDARTType(SuperorClassic)andTimeSlot.Figure 3. Equation for Expected Power Level for Noise-Only Inputs
Forexample,ifthisisa4-timeslotpassband(25MHz)witha5dBNoiseFigure,thentheexpectednoise-onlyinputshouldbe-95dBm/25MHz.YouusethePower (dBm) Current CompositecolumnintheReverse Link Budget (CDIU)tabletodetermineifthereisanyinterferencecomingintotheDAS,asfollows:• Fornoisemeasurements,usetheMinfield.• TheMaxlevelsareusefulforasteadystateinput,suchasaContinuousWave(CW)signal.• ThePeak levelsarenotusefulwhenmakingnoiseonlymeasurements;theyaremostusefulifyouwanttomeasurethepeak-to-averageofaninputsignal.Table3listsBandwidthandkTBasafunctionofDARTTypeandTimeslot.ThistableisusefulwhencalculatedexpectednoiselevelsusingtheequationinFigure3.Thepath-powerlevelsfoundintheReverse RFpage(Figure2onpage8)indicatethepowerintoallRemoteUnitsinthissimulcast,usingtheequationshowninFigure3.Theexpectednoise-onlyinputpowercanbedeterminedfromthesameequationastheRemoteUnitinputpowers,excepttheNoiseFigurewillreflecttheaddednoiseduetosimulcasting(Calculated Simulcast Noise Figure (dB)).Forexample,ifthisisa4timeslot(25MHzbandwidth),twoRemoteUnitconfigurationwhereeachRemoteUnithasa5dBNoiseFigure,thentheexpectedNoiseFigurewillbe8dB,andtheexpectednoiseonlyinputwillbe-92dBm/25MHz.
Figure 4. CDIU Antenna Carriers Table in the Reverse RF Page
NOTE: The Calculated Simulcast Noise Figure (dB) numbers are calculated based on the Noise Figure of the Remote Unit hardware. The calculated value will be wrong if there is an elevated noise condition at the Remote Unit. If necessary, use the Additive Gain setting to achieve the desired noise floor. Note that the Additive Gain does not adjust the calculated Noise Floor or Noise Figure as it is used to restore the original Noise Figure of the Remote Unit in the presence of elevated noise.
USING CDIUS IN A MULTI-HOST SYSTEMAMulti-HostsystemisasysteminwhichPrismRemoteUnitsareconnectedtomorethanoneHostUnit.EffectivewithFlexWaveSystemSoftwareRelease8.1.9.9,CDIUscannowbeusedinaMulti-Hostsystem.ThisisusedwhenBaseStations(i.e.,RFBands)arenotallco-locatedorwhenadditionalHostSlotsareneeded.NOTE: Spectrum and Host-to-Host systems do not support a Multi-Host environment. You also cannot cascade
Remote Units in a Multi-Host system.
Working with Hops in a Multi-Host SystemAMulti-Hostsystemshouldnotexceedeighthops.Figure5providesexamplesofhopsinaMulti-Hostsystem.
Figure 5. Multi-Host System Hop Examples
Host Unit 1
SFP1SFP2
SFP8
Remote Unit 1
SFP1SFP2
SFP8
Remote Unit 2
SFP1SFP2
SFP8
Host Unit 1
SFP1SFP2
SFP8
Remote Unit 1
SFP1SFP2
SFP8
Remote Unit 2
SFP1SFP2
SFP8
Host Unit 2
SFP1SFP2
SFP8
12
1 3
1 Hop: Host Unit SFP1 to Remote Unit 1 SFP1
1 Hop: Host Unit SFP2 to Remote Unit 2 SFP1
1
2
3 3 Hops: Hop 1 is Host Unit SFP1 to Remote Unit 1 SFP1 Hop 2 is Remote Unit 1 SFP2 to Host Unit SFP1 Hop 3 is Host Unit 2 SFP2 to Remote Unit 2 SFP1
NOTE: In this section when discussing CDIUs in a Multi-Host system, Hosts 1 - 4 are as shown in Figure 5, where Host 1 contains the CDIUs and the Clock Priority is set to 0.TherulesforusingCDIUsinaMulti-Hostsystemareasfollows:
NOTE: The Clock Priority setting of 0 is a new Clock Priority level that forces the Host Unit to not auto-negotiate its Clock Priority level so that a Host Unit with a Clock Priority setting of 0 is always the highest Clock Priority. For Multi-Host to work correctly with CDIU, the Host Unit in which the CDIU(s) are installed MUST have a Clock Priority setting of 0, and the other Host Units in the system MUST NOT have a Clock Priority setting of 0.
Figure 6. Cascaded SystemFigure7illustratesaCDIUMulti-Hostsystem.NOTE: Figure 7 shows the standard FlexWave Host Unit II and the FlexWave NEBS Level 3 Host Unit. You can
use either of these Host Units or any combination of these Host Units in a CDIU Multi-Host system.
Figure 7. Supported CDIU Multi-Host System Configuration
Host Unit Remote Unit 1 Remote Unit 2
Host Unit 1• Must have Clock Priority set to 0, which forces this Host Unit to NOT auto-nego�ate its Clock Priority. The Host Unit with Clock Priority set to 0 will always have the highest Clock Priority.• Can have one to four CDIUs configured as LTE, WCDMA or both• Can mix RF DARTS with the CDIUs• Can only connect to Prism Remote Units
Host Units 2 - 4• Must NOT have Clock Priority set to 0. By not se�ng Clock Priority set 0, these Host Units auto-nego�ate their Clock Priority range between 2 and 14. • Can only have RF DARTs installed• Can only connect to Prism Remote Units
INSTALLING A CDIUThefollowingsectionstellsyouhowtoinstallaCDIUintoaFlexWaveHostUnit,provisiontheCDIUthroughtheFlexWaveElementManagementSystem(EMS),andthenconnecttheCDIUtoaBasebandUnit(BBU).CAUTION! Follow the installation and provisioning steps in the order provided.
NOTE: The following installation instructions assume that the FlexWave Host Unit and the Nokia BBU are already installed.
USING THE FLEXWAVE EMS WITH CDIUSTheinformationinthissectiontellsyouhowtousetheFlexWaveElementManagementSystem(EMS)toprovisionaCDIU;theinformationthatthisguideprovidesassumesthattheFlexWavesystemisotherwisealreadyinstalledandprovisioned.ThisdocumentonlytellsyouhowtoprovisionCDIUs.Ifthisisanewsysteminstallation,orforinformationonhowtoprovisiontheHostUnitorotherFlexWavesystemcomponents,refertotheSystemSetupandProvisioningGuidethatcorrespondstotheEMSsoftwarereleaseinstalledontheHostUnit.(ForinformationonaccessingFlexWaveuserdocumentation,see"AccessingFlexWaveUserDocumentation”onpage120.)NOTE: The GUI pages and parameters described in this section require the presence of a CDIU in the FlexWave
Host Unit; otherwise, they do not appear in the EMS. The first time you install a CDIU into a FlexWave system, select the Host Unit in the System Tree to make the CDIU menus and parameters available for use. Alternatively, log out and then back in to the EMS to make the CDIU menus and parameters available.
Identifying CDIUs in the EMS GUITable5listshowtheFlexWaveElementManagementSystem(EMS)identifiesaCDIUbyslotnumber.
Identifying WCDMA in the EMS GUITheFlexWaveEMSusesthetermUMTSinsteadofWCDMAinitsfieldsandparameters.
Table 5. CDIU Identification in the FlexWave EMS GUI
CAUTION! This is restricted access equipment and only qualified service personnel should service and operate this equipment using appropriate tools.
CAUTION! Always allow sufficient fiber length to permit routing of patch cords and pigtails without severe bends. Fiber optic patch cords or pigtails may be permanently damaged if bent or curved to a radius of less than 2 inches (5.1 cm).
GUARD AGAINST DAMAGE FROM ELECTRO-STATIC DISCHARGE
CAUTION! Electro-Static Discharge (ESD) can damage electronic components. To prevent ESD damage, always wear an ESD wrist strap when working with a FlexWave Host Unit and its components (CDIUs, SeRF II Module, Host System III Module, DC Power Module, RF DARTs, and so forth). Connect the ground wire on the ESD wrist strap to an earth ground source before touching the Host Unit, the CDIU, or any other Host Unit component. Wear the wrist strap the entire time that you work with the Host Unit and its components.
CAUTION! When transporting or storing a CDIU or any other Host Unit component, place it in anti-static packing material.
UNPACK AND INSPECT THE CDIU1 Inspecttheexterioroftheshippingcontainer(s)forevidenceofroughhandlingthatmayhavedamagedthecomponentsinthecontainer.2 Unpackeachcontainerwhilecarefullycheckingthecontentsfordamageandverifywiththepackingslip.TheCDIUshipsfromNokiaandtheshippingcontainershouldconsistof(attheminimum)theCDIUandaClocking/Referencingcable.3 Ifdamageisfoundorpartsaremissing,contactNokia(ALU)supportat1-866-582-3688.Savethedamagedcartonsforinspectionbythecarrier.4 Saveallshippingcontainersforuseiftheequipmentrequiresshipmentatafuturedate.
1 UpdatetheHostUnitandconnectedRemoteUnitstoFlexWaveEMSsoftwarereleasethatsupportsCDIU—FlexWaveSoftwareRelease8.1.7orlater.2 IftheHostUnithasaHostSystemIIModule,replaceitwithaHostSystemIIIModule(FWP-000HUSYSIII).Forfurtherinformation,refertotheFlexWaveHostUnitandHostExpansionUnitModuleReplacementGuide(FWPP-514).CAUTION! A CDIU requires a Host System III Module (FWP-000HUSYSIII) in the Host Unit. If a Host System II Module
is installed in the Host Unit chassis, the CDIU will not function.
CONNECT THE REFERENCE CLOCK TheselectionoftheCPRIreferenceclockisnotuserconfigurable.TheHostUnitSystemIIIModuleisresponsibleforselectingavalid10MHzCPRIreferenceclocktoserveastheDASreference.TheREFOutconnectoroneachinstalledCDIUmustbeconnectedtooneofthefourEXTREFINconnectorsontheHostUnitSystemIIIModule,asshowninFigure8.
Figure 8. Connecting the EXT REF IN ConnectorsTheSystemIIIModuledetectsallREFINsignalspresentintheEXTREFINconnectors(1-4)andthecorrespondingEXTREF1-4LEDswillbegreenforalldetectedsignals.TheEXTREFLEDthatisflashinggreenisthe10MHzCPRIreferenceclock.Ifareferenceinputgoesaway(theCPRIlinkgoesdowncausingCDIUtomuteREFOUT),thentheSystemIIIModuleautomaticallyselectsthenextavailableEXTREFINconnector.TheHOVRLEDontheSystemIIIModulewillturngreentoindicatethehold-overforabout10seconds(canbeupto60seconds)duringthistransition.ServiceismaintainedontheCDIUwithvalidCPRIlinksandRFDARTsduringtheclocktransition.
FAN
SeRF II
NETWORK
CRAFT
DC POWER
CDIU CDIU
CDIU
CPRI PORT 1
CPRI PORT 2
CPRI PORT 1
CPRI PORT 2
CPRI PORT 1
CPRI PORT 2
CRAFT
CRAFT
CRAFTREF
OUT
REF
OUT
REF
OUT
PATH A
PATH B
CONFIG
PWR
PATH A
PATH B
CONFIG
PWR
PATH A
PATH B
CONFIG
PWR
REVRF OUT
REVRF OUT
PWR
STATUS
PWR
STATUSFWDREF IN
FWDREF IN
NOKIA NOKIA
NOKIA
50-ohm coaxial communica�ons cable that ships with the CDIU;it has one right-angle QMA connector and one straight-angle SMB connector.
Figure 9. System Board Clock SourceAdditionally,whenLTECPRIconnectionsarepresent(thereisavalidopticalsignalfromBBU),theHostUnitfirmwarewillonlyenabletheCDIUREFOUTconnectorforCDIUsthatareconnectedtoLTEBBUs.IfLTEisnotpresent,theHostUnitsoftwarewillenabletheREFOUTconnectorforWCDMABBUs.DothefollowingtoconnecttheCDIUreferenceclock.1 Findthe50ΩcoaxialcommunicationscablethatshippedwiththeCDIU;ithasoneright-angleQMAconnectorandonestraight-angleSMBconnector.
2 RoutethecoaxialcablebetweenanEXTREFINconnectorontheHostSystemIIIModuleandtheCDIUREFOUTconnectorasshowninFigure8onpage18.CAUTION! Do not connect the CDIU to the BBU until instructed to do so.
SET THE HOST UNIT CLOCK TO EXTERNAL WhenyoufirstinstallaCDIUintheHostUnit,aClock Configuration InvalidalarmwillactivateuntilyousettheHostUnitclocktoExternal.ThefollowingstepssetthereferenceclocksettingrequiredforaCDIUsystem.Forfurtherinformationonthereferenceclock,referto"ConnecttheReferenceClock”onpage18.1 IntheSystemTree,clickontheHostUniticon.2 IntheUnitMenubar,clickUnit Configuration>Edit Properties.
NOTE: The Clock Priority Level only needs to be set if installing the CDIU in a Multi-Host system; for further information, see "Using CDIUs in a Multi-Host System” on page 12.
4 ClickApply.• IfyoulookattheHostUnitSystemIIIModule,youshouldseethatoneofthefourEXTREFINLEDswillbegreenwiththeLEDflashing,whichindicatesthatthecorrespondingEXTREFINconnectoriscurrentlyactingastheexternalreferenceclock.IfnoCPRIlinksexist,theSYNLEDontheHostSystemIIIModulewillbered.(Forfurtherinformationonthereferenceclock,referto"ConnecttheReferenceClock”onpage18.)• IfyouaccesstheView Current AlarmspageintheEMS(clickAlarms > View Current AlarmsintheSystemMenubar),youwillnotethatClock Configuration Invalidalarmisnolongeractive.However,theSystem
Board Synthesizer FaultwillnowbeactiveasyouhavenotyetprovisionedtheCDIU.TheSYNLED(Synthesizer)ontheHostUnitSystemIIIModulewillbered,butwillclearonceyouconnecttheCDIUtotheBBUlaterduringthesetupprocess(thatis,provideavalidCPRIopticalsignal).CONFIGURE THE CDIU TO BBU INTERFACEThissectionisdividedintofiveparts:
CDIU Interfaces Page Read-Only FieldsThefollowinggraphicshowstheConfigure CDIU Interfaces pagebeforeanyoftheparametershavebeenset.NoticethatintheConfigure CDIU Interfaces page,therearetworowsperinstalledCDIU.EachrowintheConfigure CDIU Interfaces tablecorrespondstotheCDIUandCPRIportidentifiedintheSlot IdandCPRI Portcolumns.NOTE: Optics information will only display when an SFP is installed.
The Effect of Linked CDIUs on the Configure CDIU Interfaces PageFigure10showstheConfigure CDIU Interfaces page,inwhichPathAfortheCDIUinHostUnitSlot6islinkedtoaRemoteUnitDART.NoticethattheREC Type,Connection Type,andPath A Bandparametersareread-only.ThisisbecausetheConfigure CDIU Interfaces pagefollowstheruleslistedbelow:• TheConnection Typeparameterbecomesread-onlyifeitherPathislinked.• TheREC Typebecomesread-onlyifitscorrespondingPathislinked.• ThePath A BandandPath B Bandfieldsbecomeread-onlyifthecorrespondingpathislinked.ThisisaneasywaytoseewhichpathislinkedwithouthavingtogototheLinksreportontheGet Informationpage,orviewingtheLinkstableontheConfigure Linkspage.• IftheConnection TypeisType 1,theREC TypefieldforCPRI Port 1becomesread-onlyifPathAislinked,andtheREC TypefieldforCPRI Port 2becomesread-onlyifPathBislinked.IfusingConnection Type 1,youwillconfigureCPRI Port 1andCPRI Port 2independentlyfromeachother.
Figure 10. Configure CDIU Interfaces Page with a CDIU to Remote Unit LinksInFigure10SFPsarenotpresentforPathBintheCDIUinstalledinSlot6.SincetheREC Typehasnotbeenselected,theEMSdoesnotexpecttofindanSFP,sothereforenoalarms(suchasModule Missing)areactive.IftheSFPswerepresentbuttherewasnoopticalinput,thenanalarmwouldbeactive,evenwithoutaREC Typeselected.
CDIU Path BandsIn"WorkingwithCDIUForwardandReverseDelays”onpage57,youaregoingtosetupconnectivitybetweentheCDIUandtheBBU,andthendefinetheRFBandsfortheCDIU.Beforeyoudothis,familiarizeyourselfwithhowtheCDIUPath A BandandPath B Bandsettingsworkasdescribedbelow,andthenfamiliarizeyourselfwithtimeslotconfigurations("CDIUPathAandPathBTimeslotConfigurations”onpage25).• Single(SGL),850and2300 WCSbandsettingssupport6timeslots.• Double(DL)bandsettings
– supportupto12timeslots– usebothPathsofCDIU,ifinSlots2,5,or6– cannotuseCDIUCPRIPort2iftheCDIUisconfiguredasConnection Type 1andtheCDIUisinSlots2,5,or6– cannotbeusediftheCDIUisconfiguredasConnection Type 2,4,or5 andtheCDIUisinSlots2,5,or6.
CDIU Path A and Path B Timeslot Configurations Thissectionprovidesabriefoverviewoftimeslotconfigurationsandhowthatconfigurationdiffersinasingle-bandversusadouble-bandsetup.ThetimeslotconfigurationsareapplicabletothePath A BandandPath B Band settingsthatyouwillsetin"SettingtheCDIUInterfaceParameters”onpage26.Basic Timeslot RulesThefollowingrulesapplytotheCDIUbasedonthePath A BandandPath B Band settingsintheConfigure CDIU Interfacespage.• Thefollowingsingle-band(SGL)CDIUconfigurationsuselessthanorequalto6timeslots:
• Slot1allowsupto12timeslotsonPathsAandB.• Slots2,5,and6supportlessthanorequalto6timeslotsonbothPaths,ormorethan6timeslotsonPathAonly,whenDLisselected.Constraints on 1900 PCS SGL or 2100 AWS Dual-Band ConfigurationsThefollowingconstraintsapplytoCDIUsconfiguredas1900 PCS SGLor2100 AWSinthePath A BandandPath B Band menusintheConfigure CDIU Interfacespage.• IfyouconfigureSlot1as1900 PCS SGLor2100 AWS SGL
– Bothbackplaneconnectionscanhandlemorethan6timeslots– Connection Type 1cansupportmorethan6timeslotsonbothCPRIPort1and2andonPathsAandB.– Connection Type 2canonlyuseCPRIPort1,whichsupportsmorethan6timeslotsforbothMIMOpaths.– Connection Type 3canusebothCPRIPort1and2tosumonmorethan6timeslotsonPathA.PathBisnotused.– Connection Type 4cansupportmorethan6timeslotsonbothCPRIPort1and2andonPathsAandB.– Connection Type 5cansupportmorethan6timeslotsonbothCPRIPort1and2andonPathsAandB.
• IfyouconfigureSlots2,5,or6as1900 PCS DLor2100 AWS DL– TheCDIUslotcanhandlemorethan6timeslots,butrequiresbothbackplaneconnections,whichrestrictsyoutouseonlyPathA.– TheCDIUslotcanbeconfiguredasConnection Type 1orConnection Type 3.
Setting the CDIU Interface ParametersInthisprocess,yousettheSector IdandtheSector Unit;thesesettingsareusedasfollows:• Sector Id—thesectortowhichtheRRHisassigned• Sector Unit—theuniqueidoftheRRHwithinasector• <Sector Id><Sector Unit>—auniquehardwareidentificationofanRRHwithinoneBBU,where• <Sector Id><Sector Unit>—equaltotherdn(RelativeDistinguishedName)oftheassociatedRRHManagedObjectintheBBU.NOTE: Sector Id and Sector Unit are only necessary for UMTS/WCDMA connections. They can be configured for
an LTE REC type, but they aren't used or needed.FollowthestepsbelowtosetupconnectivitybetweentheCDIUandtheBBU,andtodefinetheRFBandsfortheCDIU.1 IntheSystemMenubar,clickSystem Configuration>Configure CDIU Interfaces.TheConfigure CDIU Interfaces pageopens.
2 UsetheCPRI Port Name textboxtocreateauniquelabelforthatCPRIportthatyoucanusetoidentifytheportduringtroubleshootingandconfiguration.TheCPRI Port Namemustcontainbetween1and64charactersandcannotcontainquotemarks(singleordouble,openorclose)oranglebrackets(<or>).ThedefaultisCPRI.3 UsetheCPRI Rate (Mbs)menutosettheCPRIlineratetothecorrectmegabitspersecondsetting:
NOTE: The CDIU disables the CPRI Port for two minutes on startup. Startup includes a Host Unit reboot, hot swapping a CDIU, or setting the REC Type. Disabling the CPRI Port gives the Host Unit sufficient time to assess delay settings so the CPRI link does not get multiple resets while delay settings are assessed in the system.
• Type 1-DualSISO;thisistheonlyCDIUConnection TypethatcandodifferentfrequencybandsoneachPort/Path.• Type 2-SingleMIMO(Port1only)—bothbandsmustbethesame• Type 3-SumoftwoSISOpaths• Type 4-MIMOplussummedSISOonPathA• Type 5-DualMIMO,summedonbothPaths• None-NoTypeselected;defaultsetting.
NOTE: If you are configuring the CDIU for Connection Type 3, 4, or 5, the CDIU Path A and Path B Status LEDs expects Antenna Carriers (AxC) on both CPRI ports before the LED will turn green. Here are the rules for the CDIU Path LEDs when using Types 3 to 5: • Type 3 - Path A requires AxCs from both Ports 1 and 2.• Type 4 - Path A requires AxCs from both Ports 1 and 2; Path B requires AxC from Port 1.• Type 5 - Path A and Path B require AxCs from both Ports 1 and 2.If one of the CPRI ports is not ready to be brought into service using Types 3 to 5, you can disable “Not-in-Service” CDIU alarms such as CPRI Port optical alarms or REC communication faults (see "Enable and Disable CDIU Alarms” on page 90), but the CDIU Path LEDs will still follow the previous rules. If you do not want an amber Path LED to occur, configure using Type 1 or 2, and then change to Type 3 to 5 when the second port is to be brought into service.
NOTE: You must unlink all CDIU paths to change the Connection Type on a CDIU; follow the steps in "Unlink a CDIU” on page 84 to remove a CDIU Path Link.
11 UsethePath A BandandPath B Band menustoselectthebandtypeforPathAandPathB,followingtheruleslistedin"CDIUPathBands”onpage24.12 ClickApply.13 WaitfortheInformation: Successfully saved CDIU settingsmessagetodisplay.14 ClickAlarms > View Current AlarmsintheSystemMenubartoaccesstheView Current Alarmspage.ForallCDIUCPRIportsforwhichtheREC Typewasprovisioned,theCDIU CPRI Port n REC Communication Faultalarm(wherenequals1or2)willbeactive.15 LookattheHostUnit—theSYNLEDontheHostUnitSystemIIIModuleshouldbegreen.
PROVISION THE SYSTEM LINKSInthissection,youwillprovisionthelink(s)betweentheCDIU(s)andtheRemoteDARTs.(TheRemoteDARTsareencasedintheRFModules.)FirstyoulinktheCDIUtoaRemoteDART,andthenforeachHost-to-Remotelink,yousettheForwardRF,theReverseRF,andthenthesystemDelays,asdescribedinthesectionslistedbelow.Readthefirsttwosubsectionsbeforetryingtoprovisionthelinksforthefirsttime.• "UsingtheProvisionSystemPages”onpage30• "CDIUandHostDARTSumming”onpage34• "LinkingCDIUstoRemoteUnits”onpage35• "SettheForwardRF”onpage41• "SettheReverseRF”onpage51• "ConfigureDelay”onpage55.
Using the Provision System PagesThissectiondescribestheProvisionSystempagesthatyouusetoprovisionthesystemlinks,forwardandreverseRF,anddelays.WhenyouclickSystem Configuration > Provision SystemintheSystemMenubar,thedefaultviewwillbeoftheLinkingpage,asshowninFigure11.TheEstablished Linkstableatthebottomofthepagewillbeemptyifyouhavenotyetestablishedanylinks.
Figure 11. Provision System Default View: Linking Page
EachoftheProvisionSystempagesprovidetheparametersrequiredtoprovisionboththeHostandRemotesideofalink.IntheLinkingtable,eachHostDARTisinaseparaterow.Dependentonconfiguration,CDIUscantakeuptotworows,withonerowforPath AandtheotherforPath B.AllRemoteDARTsthatcanlinkwiththatHostDARTorCDIUareinthesamerow.OnceyoulinktheHostDARTorCDIUtoaRemoteDART,theForward Link Budget,Reverse Link Budget,andManual DelaystablesshowthelinkedHostandRemoteDARTsinasinglerow,asshowninFigure13;theparametersineachrowthereforeconfigurethatspecificHost-to-Remotelink.
Figure 13. Using the Table Rows in the Provision System Pages
The second row in the Linking table shows the DART in Host Unit Slot 2 can be linked to DARTs in the Remote Unit labeled Grand Ball Park 1-3 that have the same frequency as the Host DART. The checkmark for the DART in Slot 3 of the Remote Unit indicates that it is linked to the Host Unit DART. The DART in the Remote Unit Slot 4 is grayed out, which indicates it cannot be linked to the DART in Host Unit Slot 2.
The second row in the Forward Link Budget (RF Slots) table shows the DART in Host Unit Slot 2 linked to the DART in Remote Unit Slot 3, and provides the parameters required to provision the Forward Link Budget for that link.
Figure 14. Column Titles in the Provision System TablesTheSystemTreeisnotshownwhiletheProvisionSystempagesareopen.IfyouwanttoviewtheSystemTree,doanyofthefollowing:• Right-clicktheCommScopelogointheupper-leftcorner,andthenselectOpen link in new taborOpen link in
new window,whichallowsyoutoseetheprovisioningpagesinonetaborwindowandtheSystemTreeintheother.• Right-clicktheHomelink,andthenselectOpen link in new taborOpen link in new window,whichallowsyoutoseetheprovisioningpagesinonetabandtheSystemTreeintheother.However,ifyouclicktheHomelinkbeforeyouApplyyourconfigurationsettings,thosesettingchangeswillbelost.• Right-clickanyofthemenuoptionsintheSystemMenubar(exceptforProvisionSystem),andthenselect
Open link in new taborOpen link in new window,whichallowsyoutoseetheprovisioningpagesinonetaborwindowandtheselectedWMSpageintheother.• OpenanotherEMSsessionandviewthetwosessionsside-by-side,withonesessionshowingtheSystemTree.
Host DART/CDIU Summing Rules• PairedHostDARTs/CDIUsmustbelinkedtothesameRemoteDART.• IfaHostDART/CDIUisalreadylinkedtomorethanoneRemoteDART,thenlinkingasecondHostDART/CDIUtoanyoneofthesameRemoteDARTswillcauseittolinktoallofthesameRemoteDARTsasthefirstHostDART.• WhentwoHostDARTs/CDIUsarepairedandlinkedtomorethanoneRemoteDART,unlinkingoneRemoteDARTfromaspecificHostDART/CDIUwillcauseallotherRemoteDARTstobeunlinkedonthatsameHostDART/CDIU.• IfthereareanyexistinglinksonthesecondHostDART,itslinksmustbeclearedbeforeyoucanaddittoasummedDART/CDIUgroup.ThecorrespondingLinkedcheckboxesforthedisallowedpairingwillbedesensitizedwiththefollowingmouseovermessage:Remove existing links before attempting to pair Host slot.Passbands Rules for Host DART/CDIU Summing• PassbandsforpairedHostDARTs/CDIUsmustalwaysbethesame;youmustselectthesamepassbandforbothHostDARTs/CDIUsbeforetheEMSwillallowtheDART/CDIUpairing.• IfpassbandsaredifferentfortwounpairedHostDARTs/CDIUs,theGUIwillnotallowyoutoselectalinkthatresultsinpairingthem.TheLinked checkboxwillbedesensitizedandthefollowingmouseovermessagewilldisplay:Paired Host DARTs must have the same passband.
Linking CDIUs to Remote Units“Linking”establishesanassociationinsoftwarebetweenaparticularCDIU(orHostUnitDART)andaparticularRemoteUnitDART,enablingthemtoactasanoperationalunitinoneRFband.AlinkisestablishedbysettingCDIUpassbandfrequency,selectingaRemoteDARTtobepairedwiththeCDIU,andthenclickingtheLinkedcheckbox.TheinformationthatyouneedtounderstandandperformCDIUlinkingisdividedintothesectionslistedbelow.ReadthefirstthreesubsectionsbeforetryingtolinkaCDIUtoaRemoteDART.• "UsingtheLinkingTable”onpage36• "UsingPassbandSelectionPanels”onpage38• "UsingtheEstablishedLinksTable”onpage39• "LinkingCDIU(s)toRemoteDART(s)”onpage39
Using the Linking TableYouwillusetheLinking tabletoconfiguretheHostUnittoRemoteDARTlinks.ThissectionfamiliarizesyouwithhowtheLinkingtableworks.• YoucansetthelinksforallinstalledDARTsatonetime—youdonothavetoclickApplyuntilalllinkshavebeenselected.• EachrowintheLinkingtablerepresentsaHostDARTorCDIUalongwithallpossibleRemoteDARTsthatcouldpotentiallybelinkedtoit.CDIUsareintworowswiththesameHost Slot Id,butonerowisforPath AandtheotherforPath B. IfnocompatibleRemoteDARTsexistforaparticularHostDART,theHostDARTisshown,buttheRemotecolumnswillbeblank.• AnychangethataffectsexistingRFresultsinashadedbackgroundfortheparticularcelltoindicatethatachangehasbeenmade.Thebackgroundshadingclearsif
Using the Established Links TableTheEstablished Links tableintheLinkingpagehasthesamedataastheLinksreport;forfurtherinformationgoto"ViewaLinksReport”onpage75.Linking CDIU(s) to Remote DART(s)
CAUTION! Setting the Passband for a CDIU may cause a temporary loss of RF. However, a message displays warning you of this to give you the option to proceed or to cancel the operation.DothefollowingtoestablishHostCDIUtoRemoteDARTlinks:
5 LeavetheNo Diversitylinkatitsdefaultsetting(No Diversity).Ifnecessary,clickDiversitytotoggletoNo Diversity.Aconfirmationwindowwiththefollowingmessageopens:This action will affect the RF state. Do you wish to proceed? ClickOKtoacceptthechangetotheNo Diversitysetting.
11 LookattheCDIU—thePATHAandPATHBLEDswillbeamber,ifthatpathislinked.12 ClickAlarms > View Current AlarmsintheSystemMenubartoaccesstheView Current Alarmspage.Notethat
CDIU Path X Under Drivealarmwillbeactiveforwhicheverpathwaslinked(whereXequalsAorB).Also,forallCDIUCPRIportsforwhichtheREC Typewasprovisioned,theCDIU CPRI Port n REC Communication FaultandCDIU CPRI Port n Under Drivealarm(wherenequals1or2)willbeactive.
Set the Forward RFTheForward RFpagehastwoCDIU tablesthatprovidesysteminformationandallowsyoutomanuallysettheForwardRFforCDIUs:• Forward Link Budget (CDIU)table—usethistabletosettheForwardRFforCDIUs.• CDIU Antenna Carrierstable—usethisread-onlytabletoviewinformationabouttheconnectedAntennaCarriers(AxC).ForafulldescriptionoftheCDIU Antenna CarrierstableasitappearsontheForward RFpage,goto"ViewingtheCDIUAntennaCarriersTableontheForwardRFPage”onpage50.NOTE: The Forward RF page will also show Host RF DART information in the Forward Link Budget (RF Slots)
table when Host RF DART Modules are present and linked.
NOTE: CDIU currently supports up to 2 AxCs for LTE and UMTS.HowyouinteractwiththeForwardRFpageisdependentontheInput PowerradiobuttonsatthetopoftheForward RFpage.HowyouconfiguretheCDIUHostForwardRFisdependentontheConnection Typesetting;makesureyouchoosethesettingsthatareapplicabletoyoursystemsetupasdescribedinoneofthefollowingsubsections:• "UsingPassbandSelectionPanels”onpage38• "SettheForwardRFforConnectionTypes1and2”onpage44• "SettheForwardRFforConnectionTypes3,4,and5”onpage47.
Working with Input Power in the Forward RF PageFigure16showstheInput PowerradiobuttonsatthetopoftheForward RFpage.TheInput PowerradiobuttonsconfigurehowthefieldsandparametersintheForward RFpagedisplay.
Figure 16. Input Power Radio ButtonsTheInput Powerradiobuttonsareintwocolumns.YouselectoneInput Powerradiobuttonineachcolumninanyofthecombinationslistedbelow:
TheInput PowerradiobuttonselectionsdeterminethenameandcontentsofthefirstcolumnundertheInput Power (dBm)columnsintheForward Link Budget (RF Slots) table(seeFigure17).
Figure 17. How the Input Power Radio Buttons Affect the Forward RFPageInput Power set to Current and Composite
Input Power set to Current and Sub-Band 1 Input Power set to Max Hold and Sub-Band 2
Figure18showstheHostInput Power (dBm)columnthatcorrespondstotheselectionsmadewiththeInput Powerradiobuttonsandwhichliststhefollowingpowermeasurements;thesevaluesaremeasuredbytheHostDART:peak(Peak),maximumRootMeanSquare,orRMS(Max),andminimumRMS(Min)powerlevels.
Figure 18. Host DART Power Levels
Set the Forward RF for Connection Types 1 and 2
NOTE: Digital power measurements are inaccurate when ALC is active on the CDIU.
5 CommScoperecommendsthattheAdditive Forward Gainbeleftatthe0.0defaultsetting.However,youcanusetheAdditive Forward Gain (dB)menutoselecttheForwardGainvalueof-15to+2dB,baseduponthefullyloadedforwardpathsignallevelfromtheBaseStation,butCommScoperecommendsthattheseadjustmentsbedoneattheRemoteUnit.TheAdditive Forward Gainrangeisbetween-15to+2dB.(0to+2isavailablein0.2dBstepsand-15to0isavailablein1dBsteps.)Atthispoint,thepowerlevelsshownintheHost Input Power (dBm)columnintheForward Link Budget (RF Slots)tablewillbeat-90 dBFS.ThesepowerlevelswillincreasewhentheBBUisconnectedtotheCDIUandAntennaCarriersareenabled.
NOTE: The CDIU Antenna Carriers table (bottom of the Forward RF page) that corresponds to the Antenna Carrier (AxC) will only display if the BBU is connected and the AxCs have been enabled.
6 IftheCDIUispairedwithanotherCDIUorHostDARTforsumming,usethePaired Power %textboxtoallocatetheamountofpowerforbothofpairedunits.(APaired Power %textboxonlyexistsifatleastonesetofHostDARTs/CDIUsispaired—otherwisethecellshowsNA.)• Enterpowerpercentage,whichcanbefrom0%to100%,andcanbeenteredin1%increments.• ChangingthevalueforoneDART/CDIUautomaticallychangesitappropriatelyforthepairedDART/CDIU.• TextinthePaired Power %columnindicateswithwhichDARTorCDIUtheDART/CDIUispaired.
NOTE: In a dual Linear Power Amplifier (LPA) system in which the RF Module requires two Remote Unit bays, the Path Mode / LPA Status column shows two values for the LPA status, one for each LPA. Changing the LPA Mode or resetting the LPA applies to both LPAs at the same time.
CAUTION! For Prism systems, as soon as you set the LPA Operating Mode to Normal, RF transmission will start. Before you set the LPA Operating Mode to Normal, make sure that the antenna has been connected and the system is ready to transmit RF. For information on connecting the antenna, refer to the FlexWave Prism Remote Unit and RF Module Installation Guide (FWPP-504).
9 ClickApply.• IfyousettheHostDARTOperating ModetoDisable,whenyouclickApplythefollowingconfirmationmessageopens:This action will affect the RF State. Do you wish to proceed?Dooneofthefollowing:
• IfyousettheRemoteDARTPath Mode/LPA StatustoForward DisableorForward+Reverse Disable,whenyouclickApplythefollowingconfirmationmessageopens:This action will affect the RF State. Do you wish to proceed?– ClickOKtosettheRemoteDARTPath Mode/LPA StatustoForward DisableorForward+Reverse
Disable.– ClickCancel,resettheRemoteDARTPath Mode/LPA StatustoNormal,andthenclickApply.TheForward Link Budget (CDIU) tablerefresheswiththenewsettings.
Set the Forward RF for Connection Types 3, 4, and 5
NOTE: Digital power measurements are inaccurate when ALC is active.
5 ConnectionType 3, 4or5 sumthetwoPortsinaCDIU;theallocationbetweenportschangesastwoBBUsaresharingthesameRFBand.UsethePower Allocation % (CPRI Port 1/Port 2)menutoallocatepowerin10%stepsbetweenthetwoCPRIportssuchthatthetotalisalways100%(forexample,90/10,80/20).Thedefaultissettingis50/50.ThefollowingtableshowsthereductioninpowerindBforagivenCPRIPortasafunctionofthePower Allocation % (CPRI Port 1/Port 2)setting.
NOTE: The Power Allocation setting will be driven by the RF design for the amplifier that is being shared between the two Ports. For example, if the system has a 20W max output (+43dBm), and you want 10 watts for each port (40 dBm), use the 50/50 setting. If you want 42.5 dBm for Port 1 and 33 dBm for port 2, use the 90/10 setting.
6 CommScoperecommendsthattheAdditive Forward Gainbeleftatthe0.0defaultsetting.However,youcanusetheAdditive Forward Gain (dB)menutoselectaForwardGainvalueof-15to0dB,baseduponthefullyloadedforwardpathsignallevelfromtheBaseStation,butCommScoperecommendsthattheseadjustmentsbedoneattheRemoteUnit.TheAdditive Forward Gainrangeisbetween-15to+2dB.(0to+2isavailablein0.2dBstepsand-15to0isavailablein1dBsteps.)LookatthepowerlevelsshowninthePeak,Max,andMin fieldsintheForward Link Budget (RF Slots)table.Thepowerlevelswillbeat-90 dBFS.ThesepowerlevelswillincreasewhentheBBUisconnectedtotheCDIUandAntennaCarriersareenabled.NOTE: The CDIU Antenna Carriers table (bottom of the Forward RF page) that corresponds to the Antenna
Carrier (AxC) will only display if the BBU is connected and the AxCs have been enabled.
7 IftheCDIUispairedwithanotherCDIUorHostDARTforsumming,usethePaired Power %textboxtoallocatetheamountofpowerforbothofpairedunits.(APaired Power % textboxonlyexistsifatleastonesetofHostDARTs/CDIUsispaired—otherwisethecellshowsNA.)• Enterpowerpercentage,whichcanbefrom0%to100%,andcanbeenteredin1%increments.• ChangingthevalueforoneDART/CDIUautomaticallychangesitappropriatelyforthepairedDART/CDIU.• TextinthePaired Power %columnindicateswithwhichDARTorCDIUtheDART/CDIUispaired.
NOTE: In a dual Linear Power Amplifier (LPA) system in which the RF Module requires two Remote Unit bays, the Path Mode / LPA Status column shows two values for the LPA status, one for each LPA. Changing the LPA Mode or resetting the LPA applies to both LPAs at the same time.
CAUTION! For Prism systems, as soon as you set the LPA Operating Mode to Normal, RF transmission will start. Before you set the LPA Operating Mode to Normal, make sure that the antenna has been connected and the system is ready to transmit RF. For information on connecting the antenna, refer to the FlexWave Prism Remote Unit and RF Module Installation Guide (FWPP-504).
10 ClickApply.• IfyousettheHostDARTOperating ModetoDisable,whenyouclickApplythefollowingconfirmationmessageopens:This action will affect the RF State. Do you wish to proceed?Dooneofthefollowing:
• IfyousettheRemoteDARTPath Mode/LPA StatustoForward DisableorForward+Reverse Disable,whenyouclickApplythefollowingconfirmationmessageopens:This action will affect the RF State. Do you wish to proceed?– ClickOKtosettheRemoteDARTPath Mode/LPA StatustoForward DisableorForward+Reverse
Disable.– ClickCancel,resettheRemoteDARTPath Mode/LPA StatustoNormal,andthenclickApply.TheForward Link Budget (CDIU) tablerefresheswiththenewsettings.
Viewing the CDIU Antenna Carriers Table on the Forward RF Page
NOTE: The CDIU Antenna Carriers table that corresponds to the Antenna Carrier (AxC) will only display on the Forward RF page if the BBU is connected and the AxCs have been enabled.OntheForward RFpage,theCDIU Antenna Carrierstablebehavesasdescribedbelow.
NOTE: CDIU currently supports up to 2 AxCs for LTE and UMTS.DooneofthefollowingtoviewtheCDIU Antenna CarrierstableontheForward RF page:• IfyouareontheLinkingpageoroneoftheotherProvisionSystempages,clicktheForward RFtabatthetopofthepage.• IfyouarenotontheLinkingpageoroneoftheotherProvisionSystempages,intheSystemMenubar,click
System Configuration>Provision System,andoncetheLinkingpageopens(defaultview),clicktheForward RFtabatthetopofthepage.
• Forward Power (dBFS) Current– Peak—peakinstantaneouspowerexperiencedontheforwardlink– Max—maximumaveragepowerexperiencedontheforwardlink– Min—minimumaveragepowerexperiencedontheforwardlink.
Set the Reverse RFTheReverse RFpagehastwoCDIU tablesthatprovidesysteminformationandallowsyoutomanuallysettheReverseRFforCDIUs:• Reverse Link Budget (CDIU)table—usethistabletosettheReverseRFforCDIUs,asdescribedin"ConfiguringtheReverseRF”onpage52.• CDIU Antenna Carrierstable—usethisread-onlytabletoviewinformationabouttheconnectedAntennaCarriers(AxC).ForafulldescriptionoftheCDIU Antenna CarrierstableasitappearsontheForward RFpage,goto"ViewingtheCDIUAntennaCarriersTableontheReverseRFPage”onpage53.NOTE: The Reverse RF page will also show Host RF DART information in the Reverse Link Budget (RF Slots) table
when Host RF DART Modules are present and linked.
NOTE: CDIU currently supports up to 2 AxCs for LTE and UMTS.
4 IntheAdditive Gain (dB)menu,selecttheReverseGainvalueof0to-15dB,baseduponthefullyloadedreversepathsignallevelfromtheRemoteUnit.CAUTION! For WCDMA, the CDIU reports Receive Total Wideband Power (RTWP) back to the BBU, which is a
measurement of the RF reverse path power at the front end of the Remote Unit. If you change the Additive Gain setting to something other than zero, this RTWP report is not adjusted.
5 ClickApply.TheReverse Link Budget (CDIU) tablerefresheswiththenewsettings.
Viewing the CDIU Antenna Carriers Table on the Reverse RF Page
NOTE: The CDIU Antenna Carriers table that corresponds to the Antenna Carrier (AxC) will only display on the Reverse RF page if the BBU is connected and the AxCs have been enabled.OntheReverse RFpage,theCDIU Antenna Carrierstablebehavesasdescribedbelow.
Forward Delay and Reverse Delay for a CDIU SystemTheForward DelayandReverse DelayvaluesforaCDIUSystemautomaticallypropagatetotheBBUviatheCDIU.Forasimulcast,allremotedelaysneedtobenormalizedtothelongestdelayremote,asshownbelow.Notethefollowing:• TheBBUtoCDIUfiberlengththatdrivesL1needstobelessthan10kmor15km(roundtrip)dependingupontheMaxTransportFiberDelayLengthCategorysetting.• L3needstobeincludedtoensuredelayconstraintsaremet.Ifyouuseallofthedelaybudget(e.g.200usec)totheoutputoftheRemoteUnit,callswillonlybeallowedrightnexttotheRemoteUnit.
CPRI Delay (L1): Delay due to BBU-to-CDIU fiber connec�on.Calculated at 8 usec/mile.L1 is roundtrip; therefore for a 1-mile fiber connec�on, L1 would be 16 usec.
Over-the-Air Delay (L3): Delay due to coverage area. Calculated at 5 usec/mile.
BBU Delay (BD): Delay due to BBU processing; ~ 6 usec.
DAS Delay (L2): Delay due to DAS, which is the sum of downlink (DL) and uplink (UL) delays.L2 includes the inherent delay of DAS, plus delay due to fiber (8 usec per mile).
connects to one of the following BBU LTE Modules
ALU BBU eCCM Module or eCCM2 Module(eCCM Module shown)
Working with CDIU Forward and Reverse DelaysBeforeyousettheforwardandreversedelaysfortheCDIU,familiarizeyourselfwiththefollowing:• WCDMAonly.ForCDIUsconnectedtothesameBBU,theForwarddelaysfortheseCDIUsmustallbesettothesamevalueandtheReversedelaysfortheseCDIUsmustbesettothesamevalue.ThedifferencebetweenUMTSsectorsmustbelessthan600nanoseconds,otherwisetheBBUwillnotallowservice.Ifdelaysarenotsetwithinthelimit,thentheBBUwillreportanInitialization Failure/Delay Limit Exceededalarm.• Ifdelaysarenotsettothesamevaluewithinasimulcast,thentheCDIUreportstheshortestdelaybacktotheBBU.ThisisbecausecallscanoccurwithadelaylongerthanthosereportedtotheBBU,butcallswillnotgothroughifthedelayistoolow(thisassumesthatthedelayforeachremoteiswithintheMAX_DELvalue).CommScoperecommendsthatthedelaysforallRemoteUnitsinasimulcastbesettothesamevalue.• Thesystemcomesupwithadefaultdelay.Oncelinkingiscomplete,thesystemwillcalculatetheactualdelay.Theinitialparametersthataresetmaythereforebeoutofrange.Ifnecessary,correctthedelaywithintheavailablerange.• EachtimetheCDIUforwardand/orreversedelayischangedintheDAS,theCPRIlinkgetsreset,astheonlywaytoreportdelaybacktotheBBUisatlinkstartup.Iftoomanyresetsoccur(eachtimeforwardand/orreversedelayischanged),theBBUcan“isolate”theCDIU,whichrequirestheBBUtoperformaRadioHead(RH)reset.• TheForwardandReversedelaysdonotneedtomatch;bestpracticerequiresthatyoutrytominimizethetotalroundtripdelay.Changes to Make at an ALU BBU for LTE Systems
NOTE: The changes described in this section do not have to be made on a Nokia AirScale FSM4 as it self-adjusts for delays from the CDIU.Therearethreebreakpointlimitsinmaximumround-tripdelays.Thesebreakpointlimitsoccurat60usec,170usec,and200usec.Toaccommodateforthesebreakpointlimits,makethefollowingchangesatanALUBBU,asappropriatetotheinstallation.
tenKmtofifteenKm.NOTE: The IsDASEnabled BBU field accounts for analog fiber DAS delays. Do not use this field with the CDIU for
the following reasons:• You would have to set the delays in the BBU Datafill manually.• IsDASEnabled overrides accounting for delays automatically through the ARD-546 interface.
NOTE: The BBU for WCDMA allows 200 usec of round trip delay for the DAS. Unlike LTE, you do not need to make BBU Datafill changes to achieve this amount of delay.
Setting the DAS Delay for a CDIUYouusetheDelayspagetosetaspecificamountofdelaybetweentheHostUnitandtheRemoteUnit(s)inboththeForwardandReversepaths.YoucanalsousetheDelayspagetoviewminimumdelaybasedonfiberdistanceandintrinsicsystemdelay.DelayisakeyparameterwhencommissioningaPrismorSpectrumsystem.Ifdelaysarenotsetcorrectly,thencallsmaynotgothroughand/orperformancemaybeeffected.Thefollowinglistprovidesspecificdelayguidelines.• ForeachRemoteDARTlinkedtoagivenHostDARTorCDIU(i.e.RemoteDARTsinsimulcast):
5 ClickApply.TheDelaystablerefresheswiththenewsettings.Working with a Delay Compensation Alarm at the BBU TherearetwodifferentscenariosinwhichtheCDIUForward DelayorReverse Delay(setintheFlexWaveEMS)cancauseaCompensation AlarmattheBBU:
• "BBUDelayCompensationAlarmwhenaCDIUDelaySettingExceedsBBUMaximumDelay”onpage61• "BBUDelayCompensationAlarmwhenaCDIUDelaySettingExceedsFlexWaveMaximum”onpage62.BBU Delay Compensation Alarm when a CDIU Delay Setting Exceeds BBU Maximum DelayDependentontheBBUsettings,themaximumdelay(MAX_DEL)forofaBBUisoneofthefollowing:• LTE: 60,170or200usec• UMTS:200usec.WhencomparingCommScopeDASDelayvalueswiththeBBUreported/receiveddelayalarms,thisistheround-tripdelayversusaone-waydelay.IftheCDIUForward DelayorReverse Delay(setintheFlexWaveEMS)exceedstheBBUmaximumdelay,theNokiasystemsoftwaregeneratesaCompensation AlarmattheBBU.Shouldthisoccur,dothefollowing:1 ChangetheDASdelaysothatitiswithinavalidrangefortheBBU(seedelaylimitationguidance).2 TocleartheCompensation AlarmattheBBU,usetheNokiasystemsoftwaretohavetheeNodeBlocked(LOCK)andthenunlocked(UNLOCK).
CAUTION! Make sure that the BBU to which you connect this CDIU is configured the same (SISO or MIMO). If you connect a MIMO BBU to a SISO CDIU (or vice versa), downlink data rate issues can occur. If the BBU is configured as MIMO, configure the CDIU as MIMO. If the BBU is configured as SISO, configure the CDIU as SISO.
6 ClickAlarms > View Current AlarmsintheSystemMenubartoaccesstheView Current AlarmspagetoverifythatforallCDIUCPRIportsforwhichtheREC Typewasprovisioned,theCDIU CPRI Port n REC Communication FaultandCDIU CPRI Port n Optical Under Drivealarms(wherenequals1or2)arenolongeractive.
NOTE: For WCDMA, the EMS automatically adjusts the Uplink Gain in the CDIU to normalize the noise floor to -104 dBm for a 3.84 MHz WCDMA channel (-104 dBm/3.84 MHz equates to a 4 dB Noise Figure). You should see approximately a -104 dBm value (noise only) in the Antenna Carrier powers of the Configure Host Reverse Gain, assuming that the noise power is only due to the noise figure of the hardware. External noise may make this measurement higher than -104 dBm. Also, the gain is set using the following equation: Uplink Gain = 4 - Estimated Noise Figure. For example, if you have a 4 dB noise figure (for a single PRU), then Uplink Gain will be 0dB; however, if you have a 17 dB NF (8 RAUs in a Spectrum system), then the Uplink Gain will be -13 dB.
Check the CDIU for Input Power from the BBUOncetheBBUconnectswiththeCDIUandhasenabledAntennaCarriers,youneedtochecktheCDIUforinputpowerfromtheBBU.ThestepsthatyoufollowisdependentontheConnection Typesetting;makesureyouchoosethesettingsthatareapplicabletoyoursystemsetupasdescribedinoneofthefollowingsubsections:• "CheckingBBUInputPowerforCDIUConnectionTypes1and2”onpage65• "CheckingBBUInputPowerforConnectionTypes3,4,and5”onpage66.Checking BBU Input Power for CDIU Connection Types 1 and 21 IntheSystemMenubar,clickSystem Configuration>Provision System andthenclicktheForwardRFtabtoaccesstheForward RF page.2 UsetheForward Link Budget (CDIUs) tabletocheckCDIUpowerlevels.
a UsetheHost Slot IdandSlot NamefieldstoidentifytheCDIUthatyouwanttocheck.b DoanyofthefollowingtocheckpowerlevelsintheForward Link Budget (CDIU)table.
• Forfullyloadedsystems,lookattheMax fieldintheHost RMS Input Power (dBFS) Current Composite column.TheMax powershouldwithinthefollowinglevels:– LTE:-15.5 dBFSwhenfullyloaded– UMTS:-15.5 dBFSwhenfullyloaded.
• Forunloadedsystems,lookattheMin fieldintheHost RMS Input Power (dBFS) Current Composite column.TheMin powerlevelshouldwithinthefollowinglevels:– LTE:~-25.5 dBFSwhenunloaded– UMTS:~-23.5 dBFSwhenunloaded.
– TwoCarriers:-18.5 dBFSloaded.• Forunloadedsystems,lookattheMin fieldintheForward Power (dBFS) Current column.TheMin powerlevelshouldwithinthefollowinglevels:
– TwoCarriers:-26.5 dBFSunloaded.Checking BBU Input Power for Connection Types 3, 4, and 51 IntheSystemMenubar,clickSystem Configuration>Provision System andthenclicktheForwardRFtabtoaccesstheForward RF page.2 UsetheForward Link Budget (CDIUs) tabletocheckCDIUpowerlevels.
a UsetheHost Slot IdandSlot NamefieldstoidentifytheCDIUthatyouwanttocheck.b LookattheMax fieldintheHost RMS Input Power (dBFS) Current Composite column.TheMax powerlevelshouldwithinthelevelslistedinthefollowingtable:
– TwoCarriers:-18.5 dBFSloaded.• Forunloadedsystems,lookattheMin fieldintheForward Power (dBFS) Current column.TheMin powerlevelshouldwithinthefollowinglevels:
– TwoCarriers:-26.5 dBFSunloaded.Check the CDIU for Output Power to the BBUOncetheBBUconnectswiththeCDIUandhasenabledAntennaCarriers,youneedtoverifyoutputpowerisasexpected.
CDIU TEMPERATURE AS REPORTED BY THE BBUTheNokiasystemsoftwareontheBBUidentifiestheCDIUasaROCM(ReverseOneBTSCPRIModule),notasanRRH(RemoteRadioHead).TheBBUthereforerecordstheCDIUtemperatureasNot Reported.
MANAGING CDIUSThefollowingsectionstellyouhowtousetheFlexWaveEMStomanageandtroubleshootaCDIU.POWERING UP CDIUSTheCDIUdisablestheCPRIPortfortwominutesonstartup.StartupincludesaHostUnitreboot,hotswappingaCDIU,orsettingtheRECType.DisablingtheCPRIPortgivestheHostUnitsufficienttimetoassessdelaysettingssotheCPRIlinkdoesnotgetmultipleresetswhiledelaysettingsareassessedinthesystem.GENERATE A TEST TONE
CAUTION! Generating a test tone causes loss of RF for the CDIU under test.YoucangenerateaTestTonetodrivetheforwardpathwithoutconnectiontoaBBU.ThisallowsyoutoverifythepathbycheckingtheOutput Power Setting(HostUnitselectedintheSystemTree,thenclickUnit Information>View CDIU Antenna Carriers).TheTestTonecanrangefrom-40to-18 dBFSin1dBsteps.FollowthestepsbelowtogenerateaforwardpathtesttonefortheselectedCDIU.1 NotifytheNOCorthesystemoperatormonitoringalarmsthatyouaregoingtogenerateatesttone,whichwillcauseaCDIU Path A Test Tone EnabledorCDIU Path B Test Tone Enabled alarm.2 InthesystemMenubar,clickSystem Configuration>Generate Test Tone.3 UsetheSlot Id,Slot Name,andPassbandcolumnstoidentifytheCDIUforwhichyouwanttogenerateatesttone.4 IntherowthatcorrespondstotheCDIUidentifiedinStep2,usetheFrequency (MHz)textboxtoenterthefrequencyofthetesttone.ThepossiblerangeofthetesttonewilldisplaynexttotheFrequency (MHz)textbox,andwillbeapplicabletotheCDIUbandtype.Typically,youwillselectaguardbandfrequency,notsomethinginthecenteroftheband,asthisminimizesover-the-airinterferenceinthecoverageaironexistingmacroorotherDASsectorlevels.5 UsethePower (dBFS)menutosetthestrengthofthetesttone,measuredindecibeltofullscale.6 SelectthecheckboxintheEnable Test Tonecolumn.
7 ClickApply.TheTestToneremainsactiveuntilyoudisableit.8 WaitfortheSuccessfully saved test tone settingsmessagetodisplay.9 Tostopthetesttone,deselectthecheckboxintheEnable Test Tonecolumn,andthenclickApply.
10 WaitfortheSuccessfully saved test tone settingsmessagetodisplay.11 NotifytheNOCorthesystemoperatormonitoringalarmsthatthetesttonehasendedandtheCDIU Path A
Test Tone EnabledorCDIU Path B Test Tone Enabled alarmshouldnolongerbeactive.USING THE UNIT INFORMATION PAGESThefollowingsectionstellyouhowtofindinformationabouttheCDIUbyusingtheUnit InformationmenuintheUnitMenubar.View the CDIU(s) Installed in the Host Unit
View the CDIU Status1 IntheSystemTree,clickontheHostUniticon.2 IntheUnitMenubar,clickUnit Information>View Status toopentheView Status page,whichwillhavethenameoftheselectedHostUnitenclosedinsquarebracketsaspartofitstitle.NOTE: Path status displays once the CDIU is linked. If the CDIU is not connected to the BBU, expect to see CDIU
Under Drive alarms.TheView StatuspageforHostUnitshasthefollowingtablesthatarespecifictoCDIUs:• "CDIUCPRIPortsStatusTable”onpage70• "CDIUPathStatusTable”onpage71.CDIU CPRI Ports Status TableTheCDIU CPRI Ports StatustableshowsthealarmstatusofCDIUCPRIports.Forinformationonhowtoresolveanalarm,referto"CDIUAlarmReference”onpage100ortotheFlexWavePrismandSpectrumElementManagementSystemAlarmReference(FWPP-506).
• Slot Id—showsthatCDIUscanbeinSlots1,2,5,or6.• CPRI Port—workswiththeSlot Id toidentifythecorresponding CPRIPort1or2forthatslot.• Optical RX High BER—HighBitErrorRate(BER)detectedbyfiberopticreceiver.Faultthresholdis0.00001.• Optical RX No Light—nosignaldetectedbyopticalreceiver.• Optical Transmitter Fault—RemoteUnitSFPopticaltransmitterfailed.
• Optical Over Drive—SFPopticalreceiveinputpowerabovespecification.Thethresholdis1 dBmforIRand-9 dBmforLR.
• Optical Under Drive—SFPopticalreceiveinputpowerfortheRemoteUnitisbelowspecification.Thethresholdis-18 dBmforIR.• Optical Module Missing Fault—CDIUCPRIPortXModuleMissingFault,whereXcanbe1or2,indicatesthattheCDIUCPRIPort1or2SFPiseithernotpresentornotresponding,whichcausesalossofforwardandreverseRF.NotethattheactualalarmnamesareCDIU CPRI Port 1 Module Missing FaultandCDIU CPRI Port 2
Module Missing Fault.• Remote Alarm Indication (RAI)—theRAIbitissetinthereceivedCPRIframefromtheREContheindicatedCDIUCPRIPortn(wherencanbe1or2).TheRAIalarmoccurswhentheBBUisnotreceivingmessagesfromtheCDIUandsetstheRAIbitintheCPRIlink.Ifthisconditionpersists,theCDIUwillattemptaCPRIlinkresetafter15minutes.• Slave Link Downstream Indication (SDI)—theSDIbitissetinthereceivedCPRIframefromtheREContheindicatedCDIUCPRIPortn(wherencanbe1or2).NotethatCDIUsinslaveconfigurationsisnotcurrentlysupported,sothisalarmwillnotoccur.• REC Communication Fault—controlandmanagementchannelwiththeREConCDIUCPRIPortn(wherencanbe1or2)hasfailed.• REC Type Configuration Mismatch—userconfiguredRECtypeonCDIUCPRIPortn(wherencanbe1or2)isnotsupportedbytheCDIU.CDIU Path Status TableTheCDIU Path StatustableshowsthealarmstatusofCDIUpaths.Forinformationonhowtoresolveanalarm,referto"CDIUAlarmReference”onpage100ortotheFlexWavePrismandSpectrumElementManagementSystemAlarmReference(FWPP-506).• Slot Id—showsthatCDIUscanbeinSlots1,2,5,or6.• Over Drive—aCDIU CPRI Port 1 Optical
Over DriveorCDIU CPRI Port 2 Optical Over Drivemajoralarmisactive.ACDIUoverdrivealarmindicatesthattheCDIUCPRIPort1or2SFPopticalreceiveinputpowerisabovespecification;thethresholdis1dBm(IR).
• Under Drive—aCDIU CPRI Port 1 Optical Under DriveorCDIU CPRI Port 2 Optical Under Drivemajoralarmisactive.ACDIUunderdrivealarmindicatesthattheCDIUCPRIPort1SFPopticalreceiveinputpowerisbelowspecification;thethresholdis-18dBm(IR).• Test Tone Enabled—aTestToneisactiveonthatpath.AslongastheTestToneisactive,therewillbealossofRFfortheCDIUundertest,whichgeneratestheTest Tone Enabled majoralarm.• ALC Limiting—aCDIU Path A ALC LimitingorCDIU Path B ALC Limitingminoralarmisactive.AnALCLimitingalarmmeansthattheCDIUPathAorCDIUPathBforwardpathAutomaticLevelControlisactive;thethresholdis-1.5dBFS(peak).• Linking Conflict—theCDIUcannotrestorealinkwiththeRemoteUnitDARTwithwhichitwaslinked,sothe
• Forward Center Frequency (MHz)—configuredbytheCARRIERCFGmessagefromBBU.RepresentstheForwardPathcenterfrequencyoftheAntennaCarrier.• Reverse Center Frequency (MHz)—configuredbytheCARRIERCFGmessagefromBBU.RepresentstheReversePathcenterfrequencyoftheAntennaCarrier.• Reverse Noise Setting (dBFS)—configuredbytheCARRIERCFGmessagefromLTEBBU.TheCDIUusesthisnumbertoconfiguretheReversePathgaininthesystem.Typicallysetto-64.42dBFS.• Output Power Setting (dBm)—configuredbytheCARRIERCFGmessagefromBBU.TellsCDIUtheBBU-expectedoutputpower.CDIUwillreportOutputPowerbaseduponthissetting.Afull-scaleinputintotheCDIU(-15.5dBFS)willresultinafull-scaleoutputpowerreport.NotethattheOutput Power Setting reportisdisplayedwithintheBBUsystemandisindependentoftheDASOutputpowerreadings.• Path A Forward Containers—definedbytheBBU,thisisthestartinglocationoftheForwardPathContainerwithinCPRIbasicframeonRFPathA.• Path A Reverse Containers—definedbytheBBU,thisisthestartinglocationoftheReversePathContainerwithinCPRIbasicframeonRFPathA.• Path B Forward Containers—definedbytheBBU,thisisthestartinglocationoftheForwardPathContainerwithinCPRIbasicframeonRFPathB.• Path B Reverse Containers—definedbytheBBU,thisisthestartinglocationoftheReversePathContainerwithinCPRIbasicframeonRFPathB.
Viewing the CDIU Antenna Carriers Table in the Get Information CDIU Antenna Carriers ReportToaccesstheCDIU Antenna Carriersreport,intheSystemMenubar,clickSystem Information>Get Information,andthenintheTypemenu,selectCDIU Antenna Carriers.
USING THE GET INFORMATION REPORTSThefollowingsubsectionstellyouhowtousetheGet InformationmenutofindinformationabouttheCDIU.View Information about the CDIU Hardware
1 IntheSystemMenubar,clickSystem Information > Get Information.2 IntheTypemenu,selectHardware Inventory.
TheHardware Inventory reportlistsanyinstalledCDIUsintheHardwareInventorytablethatpertainstotheHostUnit,asfollows:• Module Type—identifiesthemodulebytype,suchasCDIU,withthenameassignedtothatmoduleappendedafterthatthemoduletypeintheformatof:[moduletype]-[slotname].• Id—identifiestheCDIUbyitsHostUnitslotnumber(1,2,5,or6).• Date Code—identifiesthemanufacturingdatecodeoftheinstalledCDIU.• Hardware Version—identifiesthereleaseversionnumberoftheinstalledCDIU.TheCDIUfirmwarereleaseisidentifiedinparentheses.• Serial Number—identifiestheCommScopeConnectivityserialnumberoftheinstalledCDIUassignedduringmanufacturing.NokiawillbeabletocrossreferencetheSerial NumberwithNokiarecords.• Part Number—identifiestheCommScopeConnectivityPartNumberoftheinstalledCDIUassignedduringmanufacturing.ThePartNumbertellsCommScopewhattypeofCDIUisinstalled.
View a Links ReportTheLinksreportprovidesinformationaboutDARTsorCDIUsthatarelinkedbetweenaHostUnitandaRemoteUnit.NOTE: If there are TDD DARTs in the system, there will also be a TDD Settings table, refer to the System Setup
and Provisioning Guide that corresponds to the EMS software release installed on the Host Unit.ToopentheLinksreport,intheSystemMenubar,clickSystem Information>Get Information,andthenintheTypemenu,selectLinks.
View a Forward RF ReportTheForward RF reportprovidesinformationregardingtheend-to-endforwardRFpath.WhenCDIUsarepresentinthesystem,therewillbetwotablesintheForward RFreport:theForward Link Budget (RF Slots)table,andtheForward Link Budget (CDIUs)table.ThisdocumentdescribestheForward Link Budget (CDIUs)table.ForinformationontheForward Link Budget (RF Slots)table,refertotheSystemSetupandProvisioningGuidethatcorrespondstotheEMSsoftwarereleaseinstalledontheHostUnit.ToopentheForward RF report,intheSystemMenubar,clickSystem Information>Get Information,andthenintheTypemenu,selectForward RF.TheForward Link Budget (CDIUs)tablewillbeatthebottomofthepage.
TheForward Link Budget (CDIUs)tablehastheelementslistedbelow.• Hostcolumns/fields
– Input Power (dBm) Power Allocation % (CPRI Port 1/Port 2)—indicateshowthepowerisallocatedbetweenCPRIPort1andCPRIPort2.WhentwoBBUsaresharingthesameRFBand,powerisallocatedin10%stepsbetweenCPRIPort1andCPRIPort2.thetotalallocatedpowermustalwaysequal100%. Additive Forward Gain (dB)—ForwardGainindecibelsassignedtotheCDIU.
– Input Power (dBFS) Peak—peakinstantaneouspowerexperiencedontheCDIUforwardpath. Max—maximumaveragepowerexperiencedontheCDIUforwardpath. Min—minimumaveragepowerexperiencedontheCDIUforwardpath.
– Paired Power %—whenHostDART/CDIUsummingisused,thePaired Power (%)columnindicatestheamountofpowerallocatedtoeachofthepairedHOSTDARTs/CDIUs.ThePaired Power (%)columnonlydisplaysifatleastonesetofHostDARTs/CDIUsispaired.
NOTE: In a dual Linear Power Amplifier (LPA) system, the Path Mode / LPA Status column shows two values for the LPA status, one for each LPA. Changing the LPA Mode or resetting the LPA applies to both LPAs at the same time.
– RMS Output Power (dBm) Current Composite—theforwardpowerattheRemoteUnitAntennaport.ForPrismPRUsandFRUs,thisisameasuredoutputvalue.ForSpectrum,thisvalueisanestimateoutputlevelbasedonthevalueonastandardpowerRAUs,thevaluethereforedisplaysas(est.)afterthepowerlevel. Max/Fully Loaded Composite—thedesiredmaximum(or,fullyloaded)outputpowerreferencedtotheremoteantennafromtheRemoteDART.TheMax fielddisplaysthemaximumoutputpowertheRemoteDARTcansupport.ForSpectrum,thevaluerepresentsmaximumoutputpowerforastandardpowerRAU.TheFully Loaded Compositefieldisthedesiredmaximum(or,fullyloaded)outputpowerreferencedtotheremoteantennafromtheRemoteDART.ThemaximumsettinghasthesamevalueaswhatisshownintheMax field.ForSpectrum,thedisplayedvaluecorrespondstotheestimated(est.)outputpowerforastandardpowerRAU.
View a Reverse RF ReportTheReverse RFreportshowstheconfigurationofthereverseRFsignalpath.WhenCDIUsarepresentinthesystem,therewillbetwotablesintheReverse RFreport:theReverse Link Budget (RF Slots)table,andtheReverse Link Budget (CDIUs)table.ThissectiondescribestheReverse Link Budget (CDIUs)table.ForinformationontheReverse Link Budget (RF Slots)table,refertotheFlexWaveProvisioningGuidethatcorrespondstothesoftwarereleaseinstalledonthesystem.ToopentheReverse RF report,intheSystemMenubar,clickSystem Information>Get Information,andthenintheTypemenu,selectReverse RF.
TheReverse Link Budget (CDIUs) tableprovidesthefollowinginformation.• Hostcolumns/fields—providegaininformationfortheHostUnitsideinthelink.
– Slot Id—numberoftheHostUnitslotinwhichaDARTisinstalled,whichcanbefrom1through8.– Slot Name—user-definednamefortheHostDART;thedefaultisDART.– Passband (MHz)—frequencyrangeconfiguredontheDART.– Power Current (dBm)
– Calculated Simulcast Noise Figure (dB)—estimateoftheReverseNoiseFigurebaseduponproducttype(PrismorSpectrum),simulcastnumber(1-8),Remote Gain Mode(NormalorHigh),andRAUcount(1-8).Examplesareasfollows:
NOTE: The Calculated Simulcast Noise Figure (dB) numbers are calculated based on the Noise Figure of the Remote Unit hardware. The calculated value will be wrong if there is an elevated noise condition at the Remote Unit. If necessary, use the Additive Gain setting to achieve the desired noise floor. Note that the Additive Gain does not adjust the calculated Noise Floor or Noise Figure as it is used to restore the original Noise Figure of the Remote Unit in the presence of elevated noise.
• Remote columns/fields—providegaininformationfortheRemoteUnitsideinthelink.– Unit Id—identificationoftheunitwithinthesystem.– Unit Name—UnitNamefortheRemoteUnit.– Slot Id—identifiesRemoteDARTsbytheRemoteUnitslotnumberinwhichitisinstalled.– Slot Name—user-definednamefortheRemoteDART;thedefaultisDART.– Calculated Reverse System Gain (dB)—estimateoftheReverseGainfromtheRemoteUnitinputtotheHostUnitoutput.– Additive Gain (dB)—user-adjustablegainappliedtothereversepathsignalintheRemoteDART.Therangeis0to-15 dB;notethatthegainrangeisnegative,whichindicatesonlyattenuationcanbeapplied.– Input Power Current (dBm)column
• REC Type—withwhatkindofRadioEquipmentControllertheCDIUinterfaces,willbethesameasBBUandwillbeeitherLTEorUMTS.TheversionnumberisincludedintheREC Type toallowsupportwithdifferentBBUsandversionsoftheirsoftware.• Connection Type—thetypeofCPRItoRFpathmappingrequiredfortheCDIU.
– Type 1-DualSISO;thisistheonlyCDIUConnection TypethatcandodifferentfrequencybandsoneachPort/Path.– Type 2-SingleMIMO(Port1only)—bothbandsmustbethesame– Type 3-SumoftwoSISOpaths– Type 4-MIMOplussummedSISOonPathA– Type 5-DualMIMO,summedonbothPaths– None-NoTypeselected;defaultsetting.
• Path A Band/Path B Band—user-definedband(850,1900,2100,SGLorDL)thatallowsCDIUtobelinkedtoDARTsinRemoteUnits.• Optics Type—identifiestheopticstypethatisinstalledintheHostUnitslot,whichforCDIUswillalwaysbe
IntermediateRange(13dB).• Wavelength (nm)—identifiesthewavelengthtransmittedthroughthisport,whichforCDIUsis1310 nm.• Tx Power (dBm)—identifiesthelaunchpowerlevelindBmoftheforwardpathsignal,whichforCDIUswillalwaysbeintheIntermediateRange(IR)wheretheminimumopticaltransmitpoweris-5dBmandthemaximumis+1dBm.• Rx Power (dBm)—identifiesthereceivepowerlevelindBmofreversepathsignal,whichincorporatesthelaunchpoweroftheRemoteUnitSFPplusallopticallosses(insertionlosses,fibercableloss,andsoforth).CDIUsarealwaysintheIntermediateRange(IR)wheretheminimumopticaltransmitpoweris-18dBmandthemaximumis+1dBm.• Alarm—identifieswhetheranalarmisactive.Ifanalarmisactive,therewillbeaMinororMajorlinkthatyoucanclicktoopenadialogthatdefinestheactivealarm.(Ifamajorandaminoralarmareactiveforthesamecomponent,theEMSindicatesthatamajoralarmisactive.)ThebackgroundcoloroftheAlarm cellalsoindicatesthealarmlevel:
UNLINK A CDIU 1 IntheSystemMenubar,clickSystem Configuration>Provision System.TheLinkingpageopensasthedefaultviewintheEMSFrame.2 IntheLinkingtableLinked column,deselectthecheckboxoftheCDIUthatyouwanttounlinkfromtheRemoteUnitDART.3 ClickApply.4 WaitfortheInformation: Changes applied successfullymessagetodisplay.TheEstablished Links tableatthebottomofthepageupdateswiththenewlinks.NOTE: Linking a CDIU (or DART) places it into service. If a CDIU/DART has not been linked, it is not in service,
so if the unlinked CDIU/DART is hot swapped, no alarms will result and its settings will not persist in the EMS. If you hot swap a CDIU/DART that has been linked, you are hot swapping a CDIU/DART that is in service. In this case, a Module Missing alarm will result when the CDIU/DART is removed and the EMS will retain the original settings of the CDIU/DART (including its hardware and software inventory data) and restore these settings when either the original or a different CDIU/DART is installed. For DARTs, the settings that persist are the DART Name and Passband. For CDIUs, the settings that persist are the CPRI Port Name, CPRI Rate (Mbps), Sector ID, Sector Unit, REC Type, Connection Type, Path A and Path B Passbands. If you need to remove the configuration settings of the original CDIU, follow the steps in "Clear a CDIU Configuration” on page 85.
This action completely clears the configuration of the selected Slot(s). Doyouwanttocontinue?5 Intheconfirmationdialog,clickOK.6 WaitfortheInformation: Operation completed messagetodisplay.IftheCDIUhasbeenremovedfromtheHostUnit,theentireCDIUentrydisappears.IftheCDIUisstillpresentintheHostUnitchassis,theSlotNameandPassbandresettodefault.
REPLACING ONE OR MORE DARTS WITH A CDIUSinceeachCDIUrequirestwoslotspaces,youmayhavetoremovetwoDARTsfromtheHostUnitchassis.CDIUscanbeinstalledintheslotcombinationslistedinStep1belowandasshowninFigure1onpage3.1 DeterminewhichslotstheCDIUwilloccupy:
a IntheSystemMenubar,clickSystem Information > Get Information.b IntheReportspanelTypemenu,selectLinks,andthenclickDownload.c FollowthestepsoftheoperatingsystemonyourPCtosavethefiletothePC’sharddrive.Thefilenamewillbeinthefollowingformat:<ReportName>_<UnitName>_<DATETIME>.<file extension>d Toviewtherecordedparameters,gotothedirectorywherethefilewassavedtoopenthefiles.
NOTE: While Excel is often used to view a FlexWave EMS report, Excel uses characters such as hyphens and slashes to create formulas. If discrepancies are seen in this report, use a text editor to verify the report’s content.
4 RepeatStep3todownloadthefollowingreports:• Forward Gain• Reverse Gain• Link Delays.
c ClickApply.Aconfirmationwindowwiththefollowingmessageopens:This action completely clears the configuration of the selected Slot(s). Do you want to continue?
d Intheconfirmationdialog,clickOK.e WaitfortheInformation: Operation completed messagetodisplay.IftheDARThasbeenremovedfromtheHostUnit,theentireDARTentrydisappears.IftheDARTisstillpresentintheHostUnitchassis,theSlot NameandPassbandresettodefault.
TheManage Alarms tablehasthefollowingelements:• Unit Id menu—hasthefollowingimplementations:
– Global—displaysalarmsfortheHostUnitandallconnectedRemoteUnits.ChangesmadewhenGlobalisselectedaffectsallunitsinthesystemforwhichthealarmisapplicable.– Unit name—eachunitinthesystemislistedbyname,whichallowsyoutoselectaspecificunitforwhichtoenableordisableanalarm.
• Unit Type column—typeofunittowhichthealarmpertains:– Host—HostUnit– Remote—PrismRemoteUnit(PrismRemoteUnit)– DRU/HEU—PrismHEUorSpectrumDRU.
• Module Type column—whichmodulethealarmpertainsto,whichcanbeanyofthefollowing.NotethattheEMSonlylistsalarmsfordiscoveredmodules.Therefore,ifonlyoneCDIUisinstalled,onlyoneCDIUwillbeshown.– DART—canbeuptoeightDARTslisted– CDIU—canbeuptofourCDIUslisted– LNA—canbeuptoeightLNAslisted(applicableonlytoPRUs)– Power Detector(applicableonlytoPRUs)– SFP—canbeuptoeightSmallForm-FactorPluggables(SFPs)listed– SeRF—SerializedRFModule.– RDI—RemoteDARTInterface(applicableonlytoPRUs).
ENABLE AND DISABLE CDIU ALARMSTheManage Alarmspageallowsyoutoenableanddisablealarmreporting.Onceanalarmhasbeendisabled,theHostUnitandtheRemoteUnitView StatuspageindicatethedisabledalarmwithaDandagraybackground.NOTE: The enable/disable alarm reporting feature is only applicable to an EMS session run from a Host Unit.
Alarms for which reporting has been disabled will appear in the alarm reports when viewed from an EMS session connected directly to a Remote Unit Craft port.
CDIU ALARMS THAT CAN BE ENABLED/DISABLEDThealarmsthatcanbeenabled/disabledarelistedinTable6.ForCPRIPortandPathalarmswheretherecanbeuptotwoseparatealarms,theCPRIPortisidentifiedasCDIU CPRI Port 1orCDIU CPRI Port 2,andthePathisidentifiedasCDIU Path A orCDIU Path B.Foracompletelistofalarmsthatcanbemanaged,refertotheSystemSetupandProvisioningGuidethatcorrespondstotheEMSsoftwarereleaseinstalledontheHostUnit.(ForinformationonaccessingFlexWaveuserdocumentation,see"AccessingFlexWaveUserDocumentation”onpage120.)
Table 6. CDIU Alarms You Can Enable/Disable
Alarm Name Threshold Value
CDIU CPRI Port 1 Optical Under Drive -18 dBm (IR) /-27 dBm (LR)
CDIU CPRI Port 1 Optical Over Drive 1 dBm (IR) /-9dBm (LR)
CDIU CPRI Port 1 Optical Rx High BER 0.00001
CDIU CPRI Port 1 Optical Rx No Light --
CDIU CPRI Port 1 Module Missing Fault --
CDIU CPRI Port 2 Optical Under Drive -18 dBm (IR) /-27 dBm (LR)
CDIU CPRI Port 2 Optical Over Drive 1 dBm (IR) /-9dBm (LR)
CDIU CPRI Port 2 Optical Rx High BER 0.00001
CDIU CPRI Port 2 Optical Rx No Light --
CDIU CPRI Port 2 Module Missing Fault --
CDIU CPRI Port 1 Remote Alarm Indication (RAI) --
CDIU CPRI Port 1 Slave Link Downstream Indication (SDI) --
CDIU CPRI Port 1 REC Communication Fault --
CDIU CPRI Port 1 REC Type Configuration Mismatch --
CDIU CPRI Port 1 Carrier Configuration Mismatch --
CDIU CPRI Port 2 Remote Alarm Indication (RAI) --
CDIU CPRI Port 2 Slave Link Downstream Indication (SDI) --
CDIU CPRI Port 2 REC Communication Fault --
CDIU CPRI Port 2 REC Type Configuration Mismatch --
CDIU CPRI Port 2 Carrier Configuration Mismatch --
Commissioning CDIUs in a Host-to-Host Configuration
COMMISSIONING CDIUS IN A HOST-TO-H OST CONFIGURATIONYoucancascadeCDIUsinaHost-to-Host(H2H)configurationwithanAnalogDistributedAntennaSystem(aDAS).ThefollowingsectionstellyouhowtoconfiguretheH2Hdownlinkoutputpower,uplinknoisecascade,andthetotalsystemdelaywhenusingCDIUsinanH2Hconfiguration.Figure21showsablockdiagramofanH2HsystemwithCDIUs,inwhichtheHEURFinterfacetotheaDASisasfollows:• non-duplexed• DownlinkoutputiseitherLowPower(~-10dBm)orHighPower(~+20dBm)• UplinkNoisefigureisbetween12to17dB,dependentontheband.
Figure 21. Simplified Block Diagram for an H2H System with a CDIU
Commissioning CDIUs in a Host-to-Host Configuration
CONFIGURING THE HEU DOWNLINKYouconfigurethedownlinkcascadingofCDIUswithanotherDASwithinaH2HsystemthesameasyouwouldforanRFinterface.OutputPowerfromtheHEURemoteDARTisapproximately-10dBmwithPARheadroomof14dB.ForfurtherinformationonOutputPower,seetheFlexWavePerformanceSpecificationthatcorrespondswiththeFlexWavesoftwareinstalledonthissystem.IfadditionalpowerisrequiredtodrivetheaDASdownlink,thenyouneedtoaddanoptionalAmplifierShelf,asshowninFigure22.TheAmplifierModuleintheAmplifierShelfhas30dBofgain,sotheOutputPowerfromHEUandconnectedAmplifierwouldbeapproximately+19(assumes1dBofcablelossfromHEUDARTtotheAmplifierShelf).ForinformationonavailableHEUs,AmplifierShelfsandModules,refertotheFlexWaveHostExpansionUnitandAmplifierShelfInstallationGuide(FWPP-508).NOTE: This assumes a 1dB cable loss from the HEU to the AMP.
Figure 22. Simplified Block Diagram for an H2H System with CDIU(s) and Amplifier Shelf
Commissioning CDIUs in a Host-to-Host Configuration
TOTAL SYSTEM DELAY FOR LTE SYSTEMSFigure23showsasimpleblockdiagramofthetotalsystemdelayinaCDIUH2HLTEsystem,inwhich:• D1delayisautomaticallycalculatedbyBBU.• D2delayisreportedautomaticallytotheBBUbytheCDIU.• D3delaymustbedetermined(cablingplusaDASdelays).TheBBUparameterIsDASEnabledmustbeenabledandtheD3delays(FWDandREV)mustbeaddedintotheBBUdatafill.• ThesumofD1+D2+D3mustbelessthan103usecfortheDLandmustbelessthan98usecfortheULtoensuretheBBUdoesnotreportaDelay Compensationfault:
Figure 23. Simple Block Diagram of Total System Delay
TOTAL SYSTEM DELAY FOR UMTS SYSTEMSThetotalsystemdelayinaCDIUH2HUMTSsystem,inwhich:• aDASDLdelaymustbereportedintheBBUparameterextDelayDLAntenna1;thenumberisinnanoseconds• aDASULdelaymustbereportedintheBBUparametersextDelayULAntenna1and
CDIU M AINTENANCE G UIDANCECertainactivitiescausetheBBU-to-CDIUlinktobereset.AsingleresetoftheCPRIlinkshouldrecoverwithoutissue.However,iftherearemultipleresetsoftheCPRIlinkwithinagivenperiod(i.e.,sixtimesinanhour)theBBUisolatestheCDIU,whichresultsinnoservice.ThisisolationrequiresBBUaction,suchasRRH Lock/UnlockorRRH Resettorecoverthelink.CommScopethereforerecommendsthatbeforeyouperformanymaintenanceactivityontheBBUorDAS,youshouldisolatetheCDIUfromtheBBUbyeitherperformingRRH LockordisconnectthefiberbetweentheBBUandCDIU.However,isolatingtheCDIUfromtheBBUwhileperformingmaintenanceactivitiesprovidesamoreconsistentrecoveryoftheBBU-CDIUlink.NOTE: If performing an RRH Lock is not possible and disconnecting of fiber is utilized, please follow proper
fiber handling and cleaning techniques and procedures.
MAINTENANCE ACTIVITIES KNOWN TO BREAK BBU-TO-CDIU LINKSThefollowingactivitiesareknowntocausetheBBU-to-CDIUlinktobreak:• CDIUupgrades• DASsoftwareupgrades• Changingofdelays• Unlinkingofbands• ResetofRemoteUnits• Remotefiberdisconnects• BBUmaintenance
– Upgrades– Datafillchanges
DETERMINING CDIU ISOLATION BY THE BBUTheCDIUmaybeinisolationifthereareactiveCDIUUnderDrivealarmswithnootherCDIUalarms.RECOVERY IF THE BBU ISOLATES THE CDIU/RRHIftheCDIUbecomesisolatedfromtheBBU/eNodeB,performthefollowing:
CDIU A LARM REFERENCEThissectionlistsanddefinestheFlexWaveEMSalarmsthatarespecifictotheCDIU,andprovidesremediesforeachalarminthefollowingformat:Alarm: Lists the user-readable alarm name, such as Fan Fault.Alarm Code: Liststheuniquealpha-numericcodeassignedtothealarmbyCommScope,suchasAC1orRUJ014.Trap: ListstheuniqueSNMPtrapnameassignedtothealarm.NotethattheEMSGUIdoesnotshowtrapnames.Thisalarmreferenceprovides traps for thosewhouseanSNMPMIBbrowser to troubleshoot a FlexWave system. Traps are in the format of:
CDIU CPRI Port 1/2 Optical Rx High BERalarm.Otherwise,ifthe“externalselectedreference”reportedbySystemIIIBoardis1,2,3,or4,thentheselectedinputisunstable,hasafrequencyaccuracyoutsidethetolerancewindowof+/-4ppm(bothconditionsindicateeitherabasestationreferenceorCDIUproblem),orthereisaSystemIIIBoardHWfailure.Severity: Major
Alarm: CDIU Path B Over DriveAlarm Code: AC244Trap: fwuHstCDIUPathBOverDriveFaultAffected Module: HostUnitCDIUDefinition: CDIUPathBforwardRFinputtoohigh;thethresholdis-0.5dBFS.Cause/Impact: TheforwardpathRFsignalexceeds-0.5dBFSpeak,whichmayaffecttheforwardRF.Remedy: ReducetheforwardgainoftheaffectedHostUnitCDIU(System Configuration > Provision
System > Forward RF > Forward Link Budget (CDIU)).Severity: MajorAlarm: CDIU Path B Test Tone EnabledAlarm Code: AC246Trap: fwuHstCDIUPathBTestToneEnableFaultAffected Module: HostUnitCDIUDefinition: CommissioningtesttoneisenabledforCDIUPathB,resultinginmutedRFtraffic.Cause/Impact: CommissioningtonehasbeenenabledeitherthroughtheGUIorviaSNMP.RFismutedaslongasthecommissioningtoneisactive.Remedy: Disablethecommissioningtesttone(System Configuration > Generate Test Tone).Severity: MajorAlarm: CDIU Path B Under DriveAlarm Code: AC245Trap: fwuHstCDIUPathBUnderDriveFaultAffected Module: HostUnitCDIUDefinition: CDIUPathBforwardRFinputsignalisbelowthenormaloperatinglimit;thresholdis[-45dBFs]baseduponthePeakpowermeasurement(System Configuration > Provision System
> Forward RF > Forward Link Budget (CDIU) > RMS Input Power (dBFS) Current Composite > Peak).
FCCThisequipmentcomplieswiththeapplicablesectionsofTitle47CFRPart15.WARNING.ThisisNOTaCONSUMERdevice.ItisdesignatedforinstallationbyFCCLICENSEESandQUALIFIEDINSTALLERS.YouMUSThaveanFCCLICENSEorexpressConsentofanFCCLicenseetooperatethisdevice.UnauthorizedusemayresultinSignificantforfeiturepenalties,includingpenaltiesinexcessof$100,000foreachcontinuingviolation.ICThisequipmentcomplieswiththeapplicablesectionsofRSS-131.Theterm“IC:”beforetheradiocertificationnumberonlysignifiesthatIndustryCanadaTechnicalSpecificationsweremet.TheManufacturer'sratedoutputpowerofthisequipmentisforsinglecarrieroperation.Forsituationswhenmultiplecarriersignalsarepresent,theratingwouldhavetobereducedby3.5dB,especiallywheretheoutputsignalisre-radiatedandcancauseinterferencetoadjacentbandusers.Thispowerreductionistobebymeansofinputpowerorgainreductionandnotbyanattenuatorattheoutputofthedevice.CAUTION! Modifications not expressly approved by the party responsible for compliance could void the user's
authority to operate the equipment. UL/CULThisHostUnitequipmentcomplieswithULandCUL60950-1StandardforSafetyforInformationTechnologyEquipment,includingElectricalBusinessEquipment.FDA/CDRHThisequipmentusesaClass1LASERaccordingtoFDA/CDRHRules.Thisproductconformstoallapplicablestandardsof21CFRPart1040.EUHarmonizedStandards:MeetsessentialrequirementsofR&TTE1999/5/EC.• Article3.1a-Theprotectionofthehealthandthesafetyoftheuserandanyotherperson,includingtheobjectiveswithrespecttosafetyrequirementscontainedinDirective2006/95/EC,butwithnovoltagelimitapplying.• Article3.1b-TheprotectionrequirementswithrespecttoelectromagneticcompatibilitycontainedinDirective2004/108/EC.• Article3.2-Inaddition,radioequipmentshallbesoconstructedthatiteffectivelyusesthespectrumallocatedtoterrestrial/spaceradiocommunicationandorbitalresourcessoastoavoidharmfulinterference.EMC StandardsEN55022andEN55024(CEmarked)Safety StandardsThisequipmentcomplieswithIEC60950-1,2NDEdition+Amendment1(CEmarked)andwithUL60950-1,2NDEdition+Amendment1(FilenumberE362215)(USAandCanada)
• Ifyoudon'thaveanaccount,clickontheCreate New User AccountlinkundertheLoginbutton,andfollowtheprompts.Onceyouhaveloggedin,youwillseealistofavailableclassdates.4 ClickthedateyoupreferandselecttheEnrollorRegisterNowbuttontoenroll.Followthepromptsthroughthepaymentprocess.5 ClickeithertheAvailable TrainingorCalendartabtoviewothertrainingcourses.Fortrainingrelatedquestions,pleasecontacttheCommScopeDASandSmallCellInstituteatoneofthefollowingemails,asappropriateforyourlocation:
ACCESSING FLEXWAVE USER DOCUMENTATIONRefertooneofthefollowingsectionsforinformationonhowtoobtainFlexWavePrismorFlexWaveSpectrumuserdocumentation:• "AccessingPrismUserDocumentation”onpage121• "AccessingSpectrumUserDocumentation”onpage121.
