ITU R M 1079:2003
ITU R M 1079:2003 Performance And Quality Of Service Requirements For International Mobile Telecommunications-2000 (imt-2000) Access Networks
Table of Contents
1Introduction2Scope
3StructureoftheRecommendation
4Relateddocuments
5Abbreviationsandacronyms(seeNote1)
6Definitions
6.1QoS
6.2Speechquality
6.3Connectionperformance
6.4Serviceretainabilityperformance
6.5Reliabilityperformance
6.6Guidelinesofdesign
6.7Guidelinesofmanagement
7Considerations
8Recommendations
8.1OverviewofdifferentlevelsofQoS
8.1.1Theend-to-endserviceandIMT-2000bearerservice
8.1.2TheradioaccessbearerserviceandtheCNbearer
service
8.1.3TheradiobearerserviceandtheRANIbearer
service
8.1.4Thebackbonenetworkservice
8.2IMT-2000QoSclasses
8.2.1Conversationalclass
8.2.2Interactiveclass
8.2.3Streamingclass
8.2.4Backgroundclass
8.3RangeofQoSrequirements
8.3.1SupportedenduserQoS
8.4Principalspeechqualityrequirements
8.4.1Subjectivequality
8.4.2Naturalspeechqualityandspeakerrecognition
8.4.3Easeofconversation
8.4.4Lossofinteractivityduetodelayinthespeech
path
8.4.5Freedomfromecho
8.4.6Uniformityindifferentenvironments
8.4.7Effectsoftranscoding
8.4.8Qualityofend-to-endconnections
8.4.9Terminalacoustics
8.4.10Callprogresstones,announcementsandmusic
8.4.11Handover
8.4.12Robustness
8.4.13Backgroundacousticnoise
8.4.14InterconnectionofIMT-2000usersindifferent
networks
8.4.15Speechperformancetesting
Annex1Planningtooltoassessend-to-endvoicetransmission
quality