ms27103a remote spectrum monitor product brochure · pdf filems27103a remote spectrum monitor...

Software Product Name

Product Brochure

MS27103ARemote Spectrum Monitor

2

MS27103A Remote Spectrum Monitor

Introduction

Over the past few years, large investments have been allocated for frequency spectrum through government auctions. This auction process has been replicated in many parts of the world. A small sample of some of the dollar amounts for various years are shown below, with currencies given in USD:• $50billion-Germany(year2000)• $13billion–India(year2015)• $5billion-Canada(year2011)• $38billion–UK(year2000)Source: Wikipedia

Inearly2015,theAWS-3auction(65MHzofspectrum)netted$45billionintheU.S.Seefigure1forabreakdowninexpenditurespercarrier.Thisrepresentsa4xincreaseovertheAWS-1auction(90MHzofspectrum)in2006whenmeasuredin$/MHz-Pop.*

Protecting Your Investment

To protect the investment value of this spectrum, it is imperative that operators provide quality service to their customers.Withsuperiorvoice/dataqualityinthenetworkcomesincreaseddemandforthatservice.

With the proliferation of cellular standards and new frequencies being assigned, operators face increasing challengestokeeptheirnetworksoperatingatanoptimallevel.Interferencefromavarietyofsourcesleadstodropped calls, slow data rates and poor network performance. Today’s users want their applications to work anywhereandanytime,atthefastestdataratespossible.Optimizingtheuserexperienceisthereforeaprimarygoal of network operators. This translates into customer loyalty, reduced customer churn and superior brand.

Interference Degrades Network Capacity

A key impediment to good network performance is the presence of interference. Sources of interference includeillegalorunlicensedbroadcasters,repeaters(Figure2),DECTphones(Figure3),jammers,wirelessmicrophonesandcableTVleakage.Interferencecanalsocomefromothercellularnetworks,particularlyalongnationalborderswherecompetingservicesaresubjecttodifferentregulatoryentities.

Figure2.Malfunctioningrepeatersmayblockcellulartransmissions

Operator B SpectrumOperator A Spectrum

830.

0 M

Hz

835.

0 M

Hz

824.

0 M

Hz

825.

0 M

Hz

840.

0 M

Hz

845.

0 M

Hz

846.

5 M

Hz

849.

0 M

Hz

Overload

Figure1.ExpenditurepercarrieratAWS-3auction

*MHzPoPisthestandardunitformeasuringspectrumprices.ItisdefinedasSalesPrice/(MHzoflicensexpopulationcovered).

AT&T

DISH

Verizon

T-Mobile

All Others

18.2

13.3

10.4

1.7

1.3

FCC AWS-3 Auction

AWS-3 auction, billions of dollars spent0 2 4 6 8 10 12 14 16 18

3


A1 A2 A3 D B1 B2 B3 E F C1 C2 C3 A1 A2 A3 D B1 B2 B3 E F C1 C2 C3

North America PCS Uplink North America PCS Uplink

EUROPEDECT

NADECT

BRAZILDECT

JAPANDECT

CHINADECT (Pre 2003)

LATIN AMERICA

1850

MH

z

1880

MH

z

1890

MH

z

1900

MH

z

1910

MH

z

1920

MH

z

1930

MH

z

1990

MH

z

Figure3.InternationalDECTphonefrequenciesoperateinU.S.cellularbands

Traditional methods for mitigating interference are expensive and time consuming. Usually the first indication of a problem is an alarm generated byaKeyPerformanceIndicator(KPI).KPIscandetectthepresenceofunusualnetworkbehaviorsuchasdroppedcalls,hand-oversuccessratesand traffic channel congestion rates. When a problem in the network is suspected, a variety of issues can serve as the cause of the problem. These include equipment firmware malfunctions, hardware problems, passive inter-modulation(PIM)andexternalinterference.Trouble-shootingthesystem to identify the category of problem can by itself consume a lot of timeandeffortevenforexperiencedtechnicians(seeFigure4).

Typically when a network problem surfaces, a service employee will travel tothebasestationsitetoviewthespectrum.Couplingintotheuplinkantenna port, the receive band spectrum can be viewed for any unusual signalactivity.Ifasuspicioussignalisfound,thetechnicianmaythenperform an interference hunt to locate the source of the problem.

Remote Spectrum Monitoring

A spectrum monitoring system will facilitates the identification and removal of interference signals that reduce network capacity. By monitoring spectrum on a continual basis, problem signals can be identified as they occur in real time. Patternsofunwantedsignalactivitycanalsobeexamined,providinganefficientwaytocharacterizeandlocatethesourceoftheinterferenceproblem.Figure5showsonepossibleconfigurationforAnritsu’sremotespectrummonitor.

Figure4.Technicianexaminingspectrum at BTS location

Monitoring Center

Base Station

MS27103A

Base Station

MS27103A

Base Station

MS27103A

Figure5:Remotespectrummonitoring

4



Capableofsweepingatratesupto24GHz/s,theMS27103Aallowscaptureofmanytypesofsignals.Thisincludesperiodic or transient transmissions as well as short “bursty” signals. Also featured is a high dynamic range, high sensitivityandlowspurioussignals.ThisenablestheMS27103Atoreliablydistinguishbetweenlow-levelsignalsbeing observed and those signals generated by the monitor itself.

Key facts

• 9kHzto6GHz

• Sweepspeedupto24GHz/s

• Integratedwebservertoview,controlandconductmeasurementsviaawebbrowser(bothChromeandFireFoxsupported)

• Remotefirmwareupdatecapable

• Watchdogtimertoinsurelong-termstabilityforremotely deployed monitors

• Availableina12or24portRFInconfiguration

• Linuxoperatingsystem

• Lowspurioussignalsforaccuratesignaldiscovery

• 20MHzinstantaneousFFTbandwidth

• Lowpowerconsumption<11watts(inputvoltage11to24VDC)

• IntegratedGPSreceiverformonitoringlocationandfortimesynchronizationapplications

• GigabitEthernetavailableforhighspeedtransmissions

• Interferenceanalysis:spectrogramandsignalstrength

• Dynamicrange:>106dBnormalizedto1HzBW

• DANL:<–150dBmreferencedto1HzBW,preamp On

• Phasenoise:–99dBc/Hz@10kHzoffsetat1GHz

• IQblockmodeandstreamingwithtimestampingfor TDOA applications

• Vision™softwareoptionalforautomatedspectrummeasurements,settingalarmsandgeo-locatingsignal sources

Designed For Remote Applications

With monitors potentially being deployed hundreds or thousands of kilometers from the control center, it is imperative that each probe remain operational under all types of conditions. The MS27103A is designed for robust field deployments, with capabilities for remote power cycling, automated system recovery protocols and firmware updates “pushed” to the monitor remotely.

Intheeventofanapplicationerrororpowerfluctuationwhichcausesanongoinginterruptioninmonitorcommunication,are-bootpolicyisimplementedtobringtheremoteprobebacktoitspreviousstate.Undertheseconditions,thecurrentfirmwareisautomaticallyreloadedandon-lineoperationrestored.Instrumentsettings are also restored to their previous state.

A“Golden”firmwareimageisalsoplacedoneachunitinasecurelocationinmemory.Ifforanyreasonthefirmwareintheunitbecomescorrupted,aGoldenImageisusedtobringbackfulloperationoftheprobe.Thisfeature is particularly useful for secure remote firmware updates.

5


Remote Firmware Updates

There are several stages or “checks” performed when a new firmware package is downloaded remotely into the instrument. Once a new firmware image is downloaded to the monitor, various tests are performed to insure the code was properly transmitted without error. Thecodeisthentransferredintoprobememoryandinstalled.Ifthereare any issues with this process or the new firmware does not work correctly,theGoldenImageautomaticallyreplacesthedownloadedfirmwaretokeeptheremotemonitoroperational.Seefigure6forillustration of the MS27103A remote firmware update policy.

TheGoldenImagefeatureprovidestheuserwithassurancethatthemonitor stays in operation when changes are made to the code. Any bug fixes, updates or user requested features can then be remotely sent to the spectrum monitor and safely incorporated.

Integrated Web Server

The MS27103A features an integrated web server. Using an internet browser(ChromeandFireFoxaresupported),auserfromanywhereinthe world can log in to the spectrum monitor and control any of its features. This includes such parameters as frequency settings, RBW/VBWcontrol,referencelevelconfigurationandmanyothersettings relevant to the user’s spectrum monitoring application. Trace data, spectrograms and other measurements can be viewed inside the browser window. A key advantage in using the web server is that it is platform agnostic. Any electronic device capable of rendering abrowserwillworkwiththewebserver.UserscanutilizetheirPC/laptop,tabletorevenasmartphonetoviewthespectrumandchangeinstrumentsettings.TheMS27103AfeaturesGbitEthernet,allowing fast transfers of measurement data and control information. Figure7showstheserverapplicationdisplayedonasmartphone.

SeeFigure8belowforthemainuserinterfaceprovidedbythewebserver.

Figure8.Screenshotofuserinterface.

ValidateFirmware

ValidationError?

Boot NormalImage

ApplicationError?

Do NotUpdate

Boot GoldenImage

Figure6:Remotefirmwareupdatepolicy

Figure7:Userinterfacedisplayedon smartphone

6


Hardware

TheMS27103Aprovides12RFInputportsasastandardconfiguration.Thismodelistypicallyusedwith3sectorBTS architecture, with multiple carriers per sector. A high speed switch is placed in the monitor to provide measurementcapabilityforeachRFinput.Thiselectronicswitchcanmovefromporttoportinapproximately300nS.Agreaterthan30dBisolationisprovidedbetweeneachRFInputporttoassuretheintegrityofthemeasurement.

Option424allowstheMS27103Atobeupgradedto24RFInputports.Thisoptionisoptimalfor6sectorBTSoperation or other applications where access to a large number of antennas and frequency bands is required. SeeFigure9fora24-portRFinputconfiguration.

Theprobeoperateswitheithera220V/110VACsourceor–48VDCsupply.TheMS27103Aisenvironmentallyfriendly, typically consuming less than 11 Watts.

Key Applications

• Networkinterferencemonitoring• Geo-locationofinterferencesignals• Maintainhistoryofspectrumactivity• Setpowerthresholdlevelstoautomaticallygeneratealarms• Generaterecordsofinterferenceeventsforpotentiallegalaction

Signals of Interest

Thewidevarietyofsignalstobemonitoredfallintoseveralcategories.Eachofthesetypesofsignalswillbeexamined in some detail. These include:• Intentionalinterference(includingillegalorunlicensedbroadcasts)• Accidentalinterference• Occupancy

Intentional Interference

IllegalAM/FMandvideobroadcastsarefoundinmanypartsoftheworld.Thesesignalscanbegeneratedbypiratedbroadcastequipmentorover-poweredCBradios.Additionally,jammersaresometimesusedforapplications such as preventing students from cheating on tests, stopping employees from taking phone calls on company time or to prevent inmates from making illicit calls from prisons. Jammer signals can often leak out into the wider environment, interfering with other legitimate services.

Figure9.MS27103Awith24-portoption

7


Accidental Interference

A wide variety of accidental interference can be seen in the spectrum. A common problem is cable TV leakage. This type of leakage exists both from cable signals leaking into the outside environment as well as from outside signals leaking into the cable system. This problem has been enhanced with the transmission of cable signals intofrequencybandsusedbybroadcastersandcellulaoperations(suchasthe700MHzLTEband).

DECTphonesalsocauseinterferenceproblems,particularlywhenpeoplebringtheirwirelessphonesalongwhenmovingfromonecountrytoanother.DECTfrequenciesvaryindifferentcountries,providingthepotential for interference when transported.

Othersourcesofinterferenceincludecellularsignals(duetoantennatiltorazimutherrors),repeatersoscillating,wireless microphone problems, power equipment and many others.

Occupancy

With the rapid demand for available spectrum from both public and private sectors, new ways are being investigated to allow more efficient use of various frequency bands. To ensure continued growth in the future, regulatorswillbelookingatvariousfrequencybandsthatmaybeunder-utilized.Thisspectrumcanbere-purposedfromlowoccupancytohigh occupancy applications. Spectrum clearing and resolving interference issues will be important as a prerequisite to using these frequencies. Spectrum occupancy measurements quantify the amount of use of frequency bands over a givenperiodoftime(seeFigure10).Remote spectrum probes are used to monitor a band of frequencies, recording spectral histories as a function of time.

Performance

The MS27103A is able to sweep the frequency spectrumatratesupto24GHz/s.Thisenablestheuser to capture intermittent or pulsed signals. Additionally, the spectrum monitor has an instantaneousFFTbandwidthof20MHz.

Multiple spectrum sensors can also be deployed to extendtheRFmonitoringcapabilitiesandforgeo-location of signals of interest. Using three or more probes,Anritsu’soptionalVision™softwarecanbeused to position an interferer signal or illegal broadcast. Additionally,IQmeasurementsaretimestampedusingtheprobe’sGPSreceiver.Thisenablestheuserto employ their own software using Time Distance of Arrival(TDOA)capabilitiestofindinterferers,giveneachIQmeasurementispreciselytimestamped.SeeFigure11forTDOAexample.

MS27102A

MS27102A

MS27102A

MS27102A

MS27102A

MS27102AGeo-locating illegal broadcast station

Figure11:TimeDistanceofArrivalforgeo-locatinginterference signal

Radio band 400-470 MHz TV Band IV & V, 470-830 (862) MHz

GSM 900, 880 (888)-915 MHz, 925 (933)-960 MHz Radio band 960-1710 MHz

GSM 1800, 1710-1785 MHz, 1805-1880 MHz DECT, 1880-1900 MHz

UMTS, 1900-2025 MHz, 2110-2200 MHz ISM, 2.4-2.5 GHz

Radio band 400 MHz-3 GHz Radio band 400 MHz-6 GHz

0 20 40 Spectrum Utilization [%]

City A City B City C

Figure10:Spectrumoccupancymeasurement

8

Communications

CommunicationswiththeMS27103AareconductedeitherviawiredEthernetorwirelessmodem.Eachmonitorisshippedwithapre-programmedstaticIPaddress.AftermakingaconnectionwiththisIPaddress,userscanthenchangetheaddresstoadifferencestaticIP.Alternatively,DHCPorDNSmaybeused.SeeAnritsu’sEthernetConfigurationGuidefordetails.

AllcommandsandinquirieswiththeMS27103AaredoneusingSCPIcommands.AnritsuprovidesausermanuallistingeachSCPIcommand,adescriptionofeachcommandandthecorrectsyntaxforeachcommand.UsersmaydeveloptheirownlistofSCPIcommandsandsavetoatext(.txt)file.Thisfilecanthenbedownloaded to the spectrum monitor for execution.

Summary

KeybenefitsforAnritsuremotespectrummonitoringincludebothautomationandscalability.Tominimizeexpenses while preserving network integrity, a highly automated process is needed. The MS27103A takes a lot of the guesswork out of identifying causes for slow data rates or dropped calls. Using Anritsu’s Vision software or yourownapplications,userscanidentifypatternsofinterference,recordspectrumhistoryandgeo-locatethesources of problem signals. The MS27103A is also highly scalable. Additional monitors can be added to your network seamlessly as the need for interference mitigation grows. Also, new features and options that become availablecanbeaddedremotely.Nositevisitsrequired.TogetherwithotherAnritsuinterferenceandPIMmitigation products, Anritsu provides the total solution to insure the integrity of your valuable spectrum.


®Anritsu Alltrademarksareregisteredtrademarksoftheirrespectiveowners.Datasubjecttochangewithoutnotice.Forthe most recent specifications visit: www.anritsu.com

11410-00874,Rev.B PrintedinUnitedStates 2015-09©2015AnritsuCompany.AllRightsReserved.

Anritsu utilizes recycled paper and environmentally conscious inks and toner.

TheMasterUsersGroupisanorganizationdedicatedto providing training, technical support, networking opportunities and links to Master product development teams. As a member youwillreceivetheInsiteQuarterlyNewsletterwithuserstories, measurement tips, new product news and more.Visit us to register today: www.anritsu.com/MUG

Training at AnritsuAnritsu has designed courses to help you stay up to date with technologiesimportanttoyourjob.Foravailabletrainingcoursesvisit:www.anritsu.com/training

Please Contact:

• United States Anritsu Company1155EastCollinsBoulevard,Suite100, Richardson,TX,75081U.S.A. TollFree:1-800-267-4878 Phone:+1-972-644-1777 Fax:+1-972-671-1877

• Canada Anritsu Electronics Ltd.700 Silver Seven Road, Suite 120, Kanata,OntarioK2V1C3,Canada Phone:+1-613-591-2003 Fax:+1-613-591-1006

• Brazil Anritsu Electrônica Ltda.PraçaAmadeuAmaral,27-1Andar 01327-010-BelaVista-SãoPaulo-SP-Brazil Phone:+55-11-3283-2511 Fax:+55-11-3288-6940

• Mexico Anritsu Company, S.A. de C.V.Av.EjércitoNacionalNo.579Piso9,Col.Granada 11520México,D.F.,México Phone:+52-55-1101-2370 Fax:+52-55-5254-3147

• United Kingdom Anritsu EMEA Ltd.200CapabilityGreen,Luton,BedfordshireLU13LU,U.K. Phone:+44-1582-433280 Fax:+44-1582-731303

• France Anritsu S.A.12avenueduQuébec,BatimentIris1-Silic612, 91140Villebon-sur-Yvette,France Phone:+33-1-60-92-15-50 Fax:+33-1-64-46-10-65

• Germany Anritsu GmbHNemetschekHaus,Konrad-Zuse-Platz1 81829München,Germany Phone:+49-89-442308-0 Fax:+49-89-442308-55

• Italy Anritsu S.r.l.ViaElioVittorini129,00144RomaItaly Phone:+39-06-509-9711 Fax:+39-06-502-2425

• Sweden Anritsu ABKistagången20B,16440KISTA,Sweden Phone:+46-8-534-707-00 Fax:+46-8-534-707-30

• Finland Anritsu ABTeknobulevardi3-5,FI-01530Vantaa,Finland Phone:+358-20-741-8100 Fax:+358-20-741-8111

• Denmark Anritsu A/SKayFiskersPlads9,2300CopenhagenS,Denmark Phone:+45-7211-2200 Fax:+45-7211-2210

• Russia Anritsu EMEA Ltd. Representation Office in RussiaTverskayastr.16/2,bld.1,7thfloor Moscow,125009,Russia Phone:+7-495-363-1694 Fax:+7-495-935-8962

• Spain Anritsu EMEA Ltd. Representation Office in SpainEdificioCuzcoIV,Po.delaCastellana,141,Pta.8 28046,Madrid,Spain Phone:+34-915-726-761 Fax:+34-915-726-621

• United Arab Emirates Anritsu EMEA Ltd. Dubai Liaison OfficePOBox500413-DubaiInternetCity Al Thuraya Building, Tower 1, Suite 701, 7th floor Dubai,UnitedArabEmirates Phone:+971-4-3670352 Fax:+971-4-3688460

• India Anritsu India Pvt Ltd.2nd&3rdFloor,#837/1,Binnamangla1stStage, Indiranagar,100ftRoad,Bangalore-560038,India Phone:+91-80-4058-1300 Fax:+91-80-4058-1301

• Singapore Anritsu Pte. Ltd.11ChangCharnRoad,#04-01,ShriroHouse Singapore159640 Phone:+65-6282-2400 Fax:+65-6282-2533

• P. R. China (Shanghai) Anritsu (China) Co., Ltd.2701-2705,TowerA, NewCaohejingInternationalBusinessCenter No.391GuiPingRoadShanghai,XuHuiDiDistrict, Shanghai200233,P.R.China Phone:+86-21-6237-0898 Fax:+86-21-6237-0899

• P. R. China (Hong Kong) Anritsu Company Ltd.Unit1006-7,10/F.,GreenfieldTower,ConcordiaPlaza, No.1ScienceMuseumRoad,TsimShaTsuiEast, Kowloon,HongKong,P.R.China Phone:+852-2301-4980 Fax:+852-2301-3545

• Japan Anritsu Corporation8-5,Tamura-cho,Atsugi-shi, Kanagawa,243-0016Japan Phone:+81-46-296-6509 Fax:+81-46-225-8359

• Korea Anritsu Corporation, Ltd.5FL,235Pangyoyeok-ro,Bundang-gu,Seongnam-si,Gyeonggi-do,463-400Korea Phone:+82-31-696-7750 Fax:+82-31-696-7751

• Australia Anritsu Pty Ltd.Unit21/270FerntreeGullyRoad, NottingHill,Victoria3168,Australia Phone:+61-3-9558-8177 Fax:+61-3-9558-8255

• Taiwan Anritsu Company Inc.7F,No.316,Sec.1,NeihuRd.,Taipei114,Taiwan Phone:+886-2-8751-1816 Fax:+886-2-8751-1817

ms27103a remote spectrum monitor product brochure · pdf filems27103a remote spectrum monitor...

Documents