GPRS Qos参数对PDP激活和传输速率的影响的报告

关于GPRSQos参数对PDP激活和传输速率的影响的测试报告测试目的检验HLR中的五项GPRSQos参数取值对PDP激活和传输速率的影响测试环境Aircard上网卡和GX100双模卡；FTPSever：；测试文件大小：100K关于GPRSQos参数的各项取值的含义Qos参数一共五项：delayclass:GSM02.60definesfourdelayclasses(1to4).Thenetworkoperatorshouldprovisionadequatetransmissionresourcesontheradioandnetworkcommunicationchannelsinordertosupporttheexpectednumberofsubscriberswithineachcellatagivendelayclass.APLMNmaysupportonlyasubsetofthedelayclasses.Asaminimum,thePLMNshallsupportthebesteffortdelayclass(4).reliabilityclass:Thereliabilityclassspecifiestherequirementsofthevariousnetworkprotocollayers.ReliabilityClassGTPModeLLCFrameModeLLCDataProtectionRLCBlockModeTrafficType1AcknowledgedAcknowledgedProtectedAcknowledgedNonreal-timetraffic,errorsensitiveapplicationthatcannotcopewithdataloss.2UnacknowledgedAcknowledgedProtectedAcknowledgedNonreal-timetraffic,errorsensitiveapplicationthatcancopewithinfrequentdataloss.3UnacknowledgedUnacknowledgedProtectedAcknowledgedNonreal-timetraffic,errorsensitiveapplicationthatcancopewithdataloss,GMIWSM,andSMS.4UnacknowledgedUnacknowledgedProtectedUnacknowledgedReal-timetraffic,errorsensitiveapplicationthatcancopewithdataloss.5UnacknowledgedUnacknowledgedUnprotectedUnacknowledgedReal-timetraffic,errornon-ssnsitiveapplicationthatcancopewithdataloss.NOTE:Forreal-timwt饵ffic,th&QoSprofile!alsorsquir^sappropriate!settingsford@ayandthroughputpeakthroughputclass:ThepeakthroughputismeasuredattheGiandRreferencepointsinunitsofoctetspersecond.ItspecifiesthemaximumrateatwhichdataisexpectedtobetransferredacrossthenetworkforanindividualPDPcontext.Thereisnoguaranteethatthispeakratecanbeachievedorsustainedforanytimeperiod,thisdependsupontheMScapabilityandavailableradioresources.Thenetworkmaylimitthesubscribertothenegotiatedpeakdatarate,evenifadditionaltransmissioncapacityisavailable.Thepeakthroughputisindependentofthedelayclass,thatdeterminestheper-packetGPRSnetworktransitdelay.PeakThroughputClassPeakThroughputinoctetspersecondUpt。1Q00PeakThroughputClassUpto2Q00(16kbit/s).Upto4Q00(32知姑)一Upt。8Q00(64kbit/s'Upto1600。(128kbit/s\Upto3200。(256kbit/s\Upt。64000(512kbit/s"Upto1280Q0(1024kbiUs),Upto256000(2048kbit/s).meanthroughputclass:ThemeanthroughputismeasuredattheGiandRreferencepointsinunitsofoctetsperhour.ItspecifiestheaveragerateatwhichdataisexpectedtobetransferredacrosstheGPRSnetworkduringtheremaininglifetimeofanactivatedPDPcontext.Thenetworkmaylimitthesubscribertothenegotiatedmeandatarate(e.g.,forflat-ratecharging),evenifadditionaltransmissioncapacityisavailable.A"besteffort"meanthroughputclassmaybenegotiated,andmeansthatthroughputshallbemadeavailabletotheMSonaperneedandavailabilitybasis.

precedenceclass:Theserviceprecedenceindicatestherelativeimportanceofmaintainingtheservicecommitmentsunderabnormalconditions,forexamplewhichpacketsarediscardedintheeventofproblemssuchaslimitedresourcesornetworkcongestion.PrecedencePrecedenceNameHiQhurioritYNormalpriorityLowpriorityInterpretationServicecommitmentsshallbemaintainedaheadofprecedenceclasses2and3,Servicecommitnnpntsshallbeiraintain^daheadofclass3一ServicecommitmentsshallbemaintainedafterprecedencePrecedencePrecedenceNameHiQhurioritYNormalpriorityLowpriorityprecedenceclass”对传输速率的影响precedencedown-rate(KB/s)up-rate(KB/s)12.493.3021.862.9631.991.50

)s/BKTetar「3.30―I2.962.49，||—1_86『.99)s/BKTetar「3.30―I2.962.49，||—1_86『.991.50precedence〃对传输速率的影响□down-rate(KB/s)up-rate(KB/s)12precedenceclass3•“delayclass”对传输速率的影响)SZBKTetarL0-)SZBKTetarL0-0-"delay〃对传输速率的影响delayclassdelaydown-rate(KB/s)up-rate(KB/s)12.573.0722.382.9732.232.8842.493.30从上图可以看出，delayclass对传输速率的影响不大；当delayclass=1或4时，可以获得一个比较高的传输速率。•“reliabilityclass”对传输速率的影响

reliabilitydown-rate(KB/s)up-rate(KB/s)11.711.9521.752.0232.493.3041.342.8751.052.74从上图中可以看出，reliabilityclass对传输速率的影响比较明显；当reliabilityclass=3时，传输速率可以获得最大的速率。OOOOOOOO50505050从上图中可以看出，reliabilityclass对传输速率的影响比较明显；当reliabilityclass=3时，传输速率可以获得最大的速率。OOOOOOOO50505050LL■SZBKTetarpeakthroughputdown-rate(KB/s)up-rate(KB/s)10.791.7020.981.7531.222.2142.353.4352.133.3562.333.2772.353.2982.423.2292.493.30

)s/BKTetarpeakthroughput)s/BKTetarpeakthroughput"peakthroughput"对传输速率的影响OOOOOOOOO0505050502LL从上图中看出，peakthroughout对传输速率的影响也比较明显；当peakthroughput=9时，传输速率可以获得比较快的速率。“meanthroughputclaS?射传输速率的影响peakthroughputdown-rate(KB/s)up-rate(KB/s)12.293.04

22.233.1232.223.0842.313.1252.333.1162.353.1472.163.1082.493.1792.453.12102.373.11112.323.13122.333.14132.273.21142.343.15152.373.17162.273.11172.273.19182.173.12192.293.24202.313.23212.373.27222.343.18232.373.19242.283.20252.383.25262.243.25272.293.24282.253.23292.293.27302.373.28312.493.30)s2BKXetarmeanthroughput)s2BKXetarmeanthroughput"对传输速率的影响1471013161922252831meanthroughput□down-rate(KB/s)口up-rate(KB/s)3.503.002.502