3GPP-TS-26.132-V13.0.0-(2015-09)仪器设备行业标准

3GPPTS26.132V13.0.0(2015-09)

TechnicalSpecification

3rdGenerationPartnershipProject;

TechnicalSpecificationGroupServicesandSystemAspects;

Speechandvideotelephonyterminalacoustictestspecification

(Release13)

Thepresentdocumenthasbeendevelopedwithinthe3rdGenerationPartnershipProject(3GPPTM)andmaybefurtherelaboratedforthepurposesof3GPP.

Thepresentdocumenthasnotbeensubjecttoanyapprovalprocessbythe3GPPOrganizationalPartnersandshallnotbeimplemented.

ThisSpecificationisprovidedforfuturedevelopmentworkwithin3GPPonly.TheOrganizationalPartnersacceptnoliabilityforanyuseofthisSpecification.

Specificationsandreportsforimplementationofthe3GPPTMsystemshouldbeobtainedviathe3GPPOrganizationalPartners'PublicationsOffices.

STYLEREFZA

3GPPTS26.132V13.0.0(2015-09)

PAGE

112

STYLEREFZGSM

Release13

3GPP

Keywords

UMTS,3,1kHz,telephony,acoustic,testing,video,LTE

3GPP

Postaladdress

3GPPsupportofficeaddress

650RoutedesLucioles-SophiaAntipolis

Valbonne-FRANCE

Tel.:+33492944200Fax:+33493654716

Internet

CopyrightNotification

Nopartmaybereproducedexceptasauthorizedbywrittenpermission.

Thecopyrightandtheforegoingrestrictionextendtoreproductioninallmedia.

©2015,3GPPOrganizationalPartners(ARIB,ATIS,CCSA,ETSI,TSDSI,TTA,TTC).

Allrightsreserved.

UMTS™isaTradeMarkofETSIregisteredforthebenefitofitsmembers

3GPP™isaTradeMarkofETSIregisteredforthebenefitofitsMembersandofthe3GPPOrganizationalPartners

LTE™isaTradeMarkofETSIregisteredforthebenefitofitsMembersandofthe3GPPOrganizationalPartners

GSM®andtheGSMlogoareregisteredandownedbytheGSMAssociation

Contents

TOC\o"1-9"

Foreword

9

Introduction

9

1 Scope

10

2 References

10

3 Definitions,symbolsandabbreviations

12

3.1 Definitions

12

3.2 Abbreviations

12

4 Interfaces

13

5 Testconfigurations

13

5.1 Setupforterminals

14

5.1.1 Setupforhandsetterminals

15

5.1.2 Setupforheadsetterminals

15

5.1.3 Setupforhands-freeterminals

15

Vehicle-mountedhands-free

15

Desktophands-free

16

Hand-heldhands-free

16

Softphoneincludingspeakersandmicrophone

18

Softphonewithseparatespeakers

20

5.1.4 PositionandcalibrationofHATS

24

5.1.5 Testsetupforqualityinthepresenceofambientnoisemeasurements

24

5.2 Setupoftheelectricalinterfaces

25

5.2.1 Codecapproachandspecification

25

5.2.2 Directdigitalprocessingapproach

25

5.3 Accuracyoftestequipment

26

5.4 Testsignals

27

5.5 Void

28

5.5.1 Void

28

5.5.2 Void

28

6 Testconditions

28

6.1 Environmentalconditions

28

6.1.1 Handsetandheadsetterminals

28

6.1.2 Hands-freeterminals

28

6.2 Systemsimulatorconditions

29

7 Narrowbandtelephonytransmissionperformancetestmethods

29

7.1 Applicability

29

7.2 Overallloss/loudnessratings

29

7.2.1 General

29

7.2.2 ConnectionswithhandsetUE

30

Sendingloudnessrating(SLR)

30

Receivingloudnessrating(RLR)

30

7.2.3 Connectionswithdesktopandvehicle-mountedhands-freeUE

30

Sendingloudnessrating(SLR)

30

ReceivingLoudnessRating(RLR)

31

7.2.4 Connectionswithhand-heldhands-freeUE

31

Sendingloudnessrating(SLR)

31

Receivingloudnessrating(RLR)

31

7.2.5 ConnectionswithheadsetUE

32

7.3 Idlechannelnoise(handsetandheadsetUE)

32

7.3.1 Sending

32

7.3.2 Receiving

33

7.4 Sensitivity/frequencycharacteristics

33

7.4.1 HandsetandheadsetUEsending

33

7.4.2 HandsetandheadsetUEreceiving

33

7.4.3 Desktopandvehicle-mountedhands-freeUEsending

34

7.4.4 Desktopandvehicle-mountedhands-freeUEreceiving

34

7.4.5 Hand-heldhands-freeUEsending

34

7.4.6 Hand-heldhands-freeUEreceiving

34

7.5 Sidetonecharacteristics

35

7.5.1 ConnectionswithhandsetUE

35

void

35

ConnectionswithhandsetUE–HATSmethod

35

7.5.2 HeadsetUE

35

7.5.3 Hands-freeUE(allcategories)

36

7.5.4 Sidetonedelayforhandsetorheadset

36

7.6 Stabilityloss

36

7.7 Acousticechocontrol

38

7.7.1 General

38

7.7.2 Acousticechocontrolinahands-freeUE

38

7.7.3 AcousticechocontrolinhandsetUE

38

7.7.4 AcousticechocontrolinaheadsetUE

38

7.8 Distortion

39

7.8.1 Sendingdistortion

39

7.8.2 Receiving

40

7.9 Void

41

7.10 Delay

41

7.10.0 UEDelayMeasurementMethodologies

41

7.10.1 Delayinsendingdirection(HandsetUE)

42

7.10.1a Delayinsendingdirection(headsetUE)

43

7.10.2 Delayinreceivingdirection(handsetUE)

43

7.10.2a Delayinreceivingdirection(headsetUE)

44

7.10.3 Delayinsending+receivingdirectionusing“echo”method(handsetUE)

44

7.10.3a Delayinsending+receivingdirectionusing“echo”method(headsetUE)

46

7.10.4 Delayandspeechqualityinconditionswithpacketarrivaltimevariationsandpacketloss

46

Delayinsendingdirection

46

Delayinreceivingdirection

46

Speechqualitylossinconditionswithpacketarrivaltimevariationsandpacketloss

47

7.10.5 UEsendclockaccuracy

47

7.10.6 UEreceivingwithclockdrift

47

7.11 Echocontrolcharacteristics

47

7.11.1 Testset-upandtestsignals

47

7.11.2 Testmethod

48

Signalalignment

49

Signallevelcomputationandframeclassification

49

Classificationintocategories

50

7.12 Quality(speechquality,noiseintrusiveness)inthepresenceofambientnoise

50

8 Widebandtelephonytransmissionperformancetestmethods

52

8.1 Applicability

52

8.2 Overallloss/loudnessratings

52

8.2.1 General

52

8.2.2 ConnectionswithhandsetUE

52

Sendingloudnessrating(SLR)

52

Receivingloudnessrating(RLR)

52

8.2.3 Connectionswithdesktopandvehicle-mountedhands-freeUE

53

Sendingloudnessrating(SLR)

53

Receivingloudnessrating(RLR)

53

8.2.4 Connectionswithhand-heldhands-freeUE

53

Sendingloudnessrating(SLR)

53

Receivingloudnessrating(RLR)

54

8.2.5 ConnectionswithheadsetUE

54

8.3 Idlechannelnoise(handsetandheadsetUE)

54

8.3.1 Sending

54

8.3.2 Receiving

55

8.4 Sensitivity/frequencycharacteristics

55

8.4.1 HandsetandheadsetUEsending

55

8.4.2 HandsetandheadsetUEreceiving

56

8.4.3 Desktopandvehicle-mountedhands-freeUEsending

56

8.4.4 Desktopandvehicle-mountedhands-freeUEreceiving

56

8.4.5 Hand-heldhands-freeUEsending

57

8.4.6 Hand-heldhands-freeUEreceiving

57

8.5 Sidetonecharacteristics

57

8.5.1 ConnectionswithhandsetUE

57

8.5.2 HeadsetUE

58

8.5.3 Hands-freeUE(allcategories)

58

8.5.4 Sidetonedelayforhandsetorheadset

58

8.6 Stabilityloss

59

8.7 Acousticechocontrol

60

8.7.1 General

60

8.7.2 Acousticechocontrolinahands-freeUE

60

8.7.3 AcousticechocontrolinahandsetUE

61

8.7.4 AcousticechocontrolinaheadsetUE

61

8.8 Distortion

61

8.8.1 Sendingdistortion

61

8.8.2 Receiving

62

8.9 Void

64

8.10 Delay

64

8.10.0 UEDelayMeasurementMethodologies

64

8.10.1 Delayinsendingdirection(handsetUE)

64

8.10.1a Delayinsendingdirection(headsetUE)

65

8.10.2 Delayinreceivingdirection(handsetUE)

66

8.10.2a Delayinreceivingdirection(headsetUE)

67

8.10.3 Delayinsending+receivingdirectionusing“echo”method(handsetUE)

67

8.10.3a Delayinsending+receivingdirectionusing“echo”method(headsetUE)

69

8.10.4 Delayandspeechqualityinconditionswithpacketarrivaltimevariationsandpacketloss

69

Delayinsendingdirection

69

Delayinreceivingdirection

69

Speechqualitylossinconditionswithpacketarrivaltimevariationsandpacketloss

70

8.10.5 UEsendclockaccuracy

70

8.10.6 UEreceivingwithclockdrift

70

8.11 Echocontrolcharacteristics

70

8.11.1 Testset-upandtestsignals

70

8.11.2 Testmethod

71

Signalalignment

72

Signallevelcomputationandframeclassification

72

Classificationintocategories

73

8.12 Quality(speechquality,noiseintrusiveness)inthepresenceofambientnoise

73

9 Super-widebandtelephonytransmissionperformancetestmethods

75

9.1 Applicability

75

9.2 Overallloss/loudnessratings

75

9.2.1 General

75

9.2.2 ConnectionswithhandsetUE

75

Sendingloudnessrating(SLR)

75

Receivingloudnessrating(RLR)

75

9.2.3 Connectionswithdesktopandvehicle-mountedhands-freeUE

75

Sendingloudnessrating(SLR)

75

Receivingloudnessrating(RLR)

75

9.2.4 Connectionswithhand-heldhands-freeUE

75

Sendingloudnessrating(SLR)

75

Receivingloudnessrating(RLR)

76

9.2.5 ConnectionswithheadsetUE

76

9.3 Idlechannelnoise(handsetandheadsetUE)

76

9.3.1 Sending

76

9.3.2 Receiving

76

9.4 Sensitivity/frequencycharacteristics

77

9.4.0 General

77

9.4.1 HandsetandheadsetUEsending

77

9.4.2 HandsetandheadsetUEreceiving

77

9.4.3 Desktopandvehicle-mountedhands-freeUEsending

77

9.4.4 Desktopandvehicle-mountedhands-freeUEreceiving

78

9.4.5 Hand-heldhands-freeUEsending

78

9.4.6 Hand-heldhands-freeUEreceiving

78

9.5 Sidetonecharacteristics

79

9.5.1 ConnectionswithhandsetUE

79

9.5.2 HeadsetUE

79

9.5.3 Hands-freeUE(allcategories)

79

9.5.4 Sidetonedelayforhandsetorheadset

79

9.6 Stabilityloss

79

9.7 Acousticechocontrol

80

9.7.1 General

80

9.7.2 Acousticechocontrolinahands-freeUE

80

9.7.3 AcousticechocontrolinahandsetUE

81

9.7.4 AcousticechocontrolinaheadsetUE

81

9.8 Distortion

81

9.8.1 Sendingdistortion

81

9.8.2 Receiving

81

9.9 Void

81

9.10 Delay

81

9.10.0 UEDelayMeasurementMethodologies

81

9.10.1 Delayinsendingdirection(handsetUE)

82

9.10.1a Delayinsendingdirection(headsetUE)

82

9.10.2 Delayinreceivingdirection(handsetUE)

82

9.10.2a Delayinreceivingdirection(headsetUE)

82

9.10.3 Delayinsending+receivingdirectionusing“echo”method(handsetUE)

82

9.10.3a Delayinsending+receivingdirectionusing“echo”method(headsetUE)

82

9.10.4 Delayandspeechqualityinconditionswithpacketarrivaltimevariationsandpacketloss

82

Delayinsendingdirection

82

Delayinreceivingdirection

82

Speechqualitylossinconditionswithpacketarrivaltimevariationsandpacketloss

82

9.10.5 UEsendclockaccuracy

82

9.10.6 UEreceivingwithclockdrift

83

9.11 Echocontrolcharacteristics

83

9.11.1 Testset-upandtestsignals

83

9.11.2 Testmethod

83

Signalalignment

83

Signallevelcomputationandframeclassification

83

Classificationintocategories

83

9.12 Quality(speechquality,noiseintrusiveness)inthepresenceofambientnoise

83

10 Fullbandtelephonytransmissionperformancetestmethods

83

10.1 Applicability

83

10.2 Overallloss/loudnessratings

83

10.2.1 General

83

10.2.2 ConnectionswithhandsetUE

84

Sendingloudnessrating(SLR)

84

Receivingloudnessrating(RLR)

84

10.2.3 Connectionswithdesktopandvehicle-mountedhands-freeUE

84

Sendingloudnessrating(SLR)

84

Receivingloudnessrating(RLR)

84

10.2.4 Connectionswithhand-heldhands-freeUE

84

Sendingloudnessrating(SLR)

84

Receivingloudnessrating(RLR)

84

10.2.5 ConnectionswithheadsetUE

84

10.3 Idlechannelnoise(handsetandheadsetUE)

84

10.3.1 Sending

84

10.3.2 Receiving

85

10.4 Sensitivity/frequencycharacteristics

85

10.4.0 General

85

10.4.1 HandsetandheadsetUEsending

85

10.4.2 HandsetandheadsetUEreceiving

85

10.4.3 Desktopandvehicle-mountedhands-freeUEsending

85

10.4.4 Desktopandvehicle-mountedhands-freeUEreceiving

85

10.4.5 Hand-heldhands-freeUEsending

85

10.4.6 Hand-heldhands-freeUEreceiving

85

10.5 Sidetonecharacteristics

86

10.5.1 ConnectionswithhandsetUE

86

10.5.2 HeadsetUE

86

10.5.3 Hands-freeUE(allcategories)

86

10.5.4 Sidetonedelayforhandsetorheadset

86

10.6 Stabilityloss

86

10.7 Acousticechocontrol

87

10.7.1 General

87

10.7.2 Acousticechocontrolinahands-freeUE

87

10.7.3 AcousticechocontrolinahandsetUE

87

10.7.4 AcousticechocontrolinaheadsetUE

88

10.8 Distortion

88

10.8.1 Sendingdistortion

88

10.8.2 Receiving

88

10.9 Void

88

10.10 Delay

88

10.10.0 UEDelayMeasurementMethodologies

88

10.10.1 Delayinsendingdirection(handsetUE)

88

10.10.1a Delayinsendingdirection(headsetUE)

88

10.10.2 Delayinreceivingdirection(handsetUE)

88

10.10.2a Delayinreceivingdirection(headsetUE)

88

10.10.3 Delayinsending+receivingdirectionusing“echo”method(handsetUE)

88

10.10.3a Delayinsending+receivingdirectionusing“echo”method(headsetUE)

89

10.10.4 Delayandspeechqualityinconditionswithpacketarrivaltimevariationsandpacketloss

89

Delayinsendingdirection

89

Delayinreceivingdirection

89

Speechqualitylossinconditionswithpacketarrivaltimevariationsandpacketloss

89

10.10.5 UEsendclockaccuracy

89

10.10.6 UEreceivingwithclockdrift

89

10.11 Echocontrolcharacteristics

89

10.11.1 Testset-upandtestsignals

89

10.11.2 Testmethod

89

Signalalignment

89

Signallevelcomputationandframeclassification

89

Classificationintocategories

89

10.12 Quality(speechquality,noiseintrusiveness)inthepresenceofambientnoise

90

AnnexA(informative): Void

91

AnnexB(informative): Referencealgorithmforechocontrolcharacteristicsevaluation.

92

B.1 General

92

B.2 Testscript

93

B.3 Referencealgorithm

94

B.3.1 Mainalgorithm

94

B.3.2 Delaycompensation

95

B.3.3 Signallevelcomputationandframeclassification

96

B.3.4 Levelvstimecomputation

98

B.3.5 Categorization

100

B.3.6 Auxiliaryfunctionsforreportingdata

102

B.3.7 Otherhelperfunctions

103

AnnexC(informative): MeasurementmethodfordeterminingtheonewayradiodelaysofLTEradionetworksimulators

104

C.1 Measurementsetup

104

AnnexD(normative): Clockdriftmeasurement

105

D.1 Testprocedure

105

D.2 Clockdriftestimationalgorithm

105

AnnexE(normative): PacketdelayandlossprofilesforUEdelaytestingofMTSI-basedspeechwithLTEaccess

107

E.1 General

107

E.2 Simulationmodelforgeneratingpackeddelayandlossprofiles

107

E.3 PackeddelayandlossprofilesforsimulatedstationaryoperatingconditionswithDRX20msandDRX40ms

110

AnnexF(informative): Changehistory

111

Foreword

ThisTechnicalSpecificationhasbeenproducedbythe3GPP.

ThecontentsofthepresentdocumentaresubjecttocontinuingworkwithintheTSGandmaychangefollowingformalTSGapproval.ShouldtheTSGmodifythecontentsofthisTS,itwillbere-releasedbytheTSGwithanidentifyingchangeofreleasedateandanincreaseinversionnumberasfollows:

Versionx.y.z

where:

x thefirstdigit:

1 presentedtoTSGforinformation;

2 presentedtoTSGforapproval;

3orgreater indicatesTSGapproveddocumentunderchangecontrol.

y theseconddigitisincrementedforallchangesofsubstance,i.e.technicalenhancements,corrections,updates,etc.

z thethirddigitisincrementedwheneditorialonlychangeshavebeenincorporatedinthespecification.

Introduction

ThepresentdocumentspecifiestestmethodstoallowtheminimumperformancerequirementsfortheacousticcharacteristicsofGSM,3GandLTEterminalswhenusedtoprovidenarrowband,wideband,super-widebandorfullbandtelephonytobeassessed.

TheobjectivefornarrowbandservicesistoreachaqualityascloseaspossibletoITU-TstandardsforPSTNcircuits.However,duetotechnicalandeconomicfactors,therecannotbefullcompliancewiththegeneralcharacteristicsofinternationaltelephoneconnectionsandcircuitsrecommendedbytheITU-T.

TheperformancerequirementsarespecifiedinTS

26.131;thetestmethodsandconsiderationsarespecifiedinthemainbodyofthetext.

1 Scope

Thepresentdocumentisapplicabletoanyterminalcapableofsupportingnarrowband,wideband,super-widebandorfullbandtelephony,eitherasastand-aloneserviceorasthetelephonycomponentofamultimediaservice.ThepresentdocumentspecifiestestmethodstoallowtheminimumperformancerequirementsfortheacousticcharacteristicsofGSM,3GandLTEterminalswhenusedtoprovidenarrowband,wideband,super-widebandorfullbandtelephonytobeassessed.

NOTE For3GandLTE,acousticrequirementsarespecifiedinTS26.131,testmethodsarespecifiedinTS26.132.ForGSM,mostacousticrequirementsarespecifiedinTS43.050,testmethodsarespecifiedinTS51.010.ThesespecificationsareinmanycasesharmonizedwithorevenrefertoTS26.131andTS26.132.SeeTS43.050andTS51.010fordetails.ThereasonforincludingGSM,UMTSandLTEterminalswithinthescopeofthepresentspecificationistoavoid,wheneverpossible,duplicationoftestmethoddescriptionsforterminalssupportingmultipleaccesstechnologies.

2 References

Thefollowingdocumentscontainprovisionswhich,throughreferenceinthistext,constituteprovisionsofthepresentdocument.

Referencesareeitherspecific(identifiedbydateofpublication,editionnumber,versionnumber,etc.)ornonspecific.

Foraspecificreference,subsequentrevisionsdonotapply.

Foranon-specificreference,thelatestversionapplies.Inthecaseofareferencetoa3GPPdocument(includingaGSMdocument),anon-specificreferenceimplicitlyreferstothelatestversionofthatdocumentinthesameReleaseasthepresentdocument.

[1] 3GPPTS26.131:"TerminalAcousticCharacteristicsforTelephony;Requirements".

[2] ITU-T

Recommendation

B.12

(1988):"Useofthedecibelandtheneperintelecommunications".

[3] ITU-T

Recommendation

G.103

(1998):"Hypotheticalreferenceconnections".

[4] ITU-T

Recommendation

G.111

(1993):"Loudnessratings(LRs)inaninternationalconnection".

[5] ITU-T

Recommendation

G.121

(1993):"Loudnessratings(LRs)ofnationalsystems".

[6] ITU-T

Recommendation

G.122

(1993):"Influenceofnationalsystemsonstabilityandtalkerechoininternationalconnections".

[7] Void.

[8] ITU-T

Recommendation

P.11

(1993):"Effectoftransmissionimpairments".

[9] ITU-T

Recommendation

P.38

(1993):"Transmissioncharacteristicsofoperatortelephonesystems(OTS)".

[10] ITU-T

Recommendation

P.50

(1993):"Artificialvoices".

[11] 3GPP

TS

43.058

:"DigitalCellularTelecommunicationsSystemCharacterizationtestmethodsandqualityassessmentforhands-freemobiles".

[12] IEC

Publication

60651:"SoundLevelMeters".

[13] ITU-T

Recommendation

P.51

(1996):"Artificialmouth".

[14] ITU-T

Recommendation

P.57

(12/2011):"Artificialears".

[15] ITU-T

Recommendation

P.58

(05/2013):"Headandtorsosimulatorfortelephonometry."

[16] ITU-T

Recommendation

P.79

(11/2007)

with

Annex

A:"Calculationofloudnessratingsfortelephonesets."

[17] 3GPP

TS

46.077

:"MinimumPerformanceRequirementsforNoiseSuppresserApplicationtotheAMRSpeechEncoder".

[18] ITU-T

Recommendation

P.64(11/2007):"Determinationofsensitivity/frequencycharacteristicsoflocaltelephonesystems".

[19] ITU-T

Recommendation

P.581(02/2014):"Useofheadandtorsosimulator(HATS)forhands-freeandhandsetterminaltesting".

[20] ITU-T

Recommendation

P.340(05/2000):"Transmissioncharacteristicsandspeechqualityparametersofhands-freeterminals".

[21] ITU-T

Recommendation

G.712(11/2001):"Transmissionperformancecharacteristicsofpulsecodemodulationchannels".

[22] ITU-T

Recommendation

P.501(01/2012):"Testsignalsforuseintelephonometry".

[23] ITU-T

Recommendation

O.41(10/1994):"Psophometerforuseontelephone-typecircuits".

[24] ITU-T

Recommendation

O.131(11/1988):"Quantizingdistortionmeasuringequipmentusingapseudo-randomnoisetestsignal".

[25] Void.

[26] ISO

3745:"Acoustics-Determinationofsoundpowerlevelsofnoisesourcesusingsoundpressure-Precisionmethodsforanechoicandhemi-anechoicrooms".

[27] ITU-T

Recommendation

O.132(11/1988):"Quantizingdistortionmeasuringequipmentusingasinusoidaltestsignal".

[28] ETSI

TS

103

737(2010-08)V1.1.2:"Transmissionrequirementsfornarrowbandwirelessterminals(handsetandheadset)fromaQoSperspectiveasperceivedbytheuser".

[29] ETSI

TS

103

738(2010-09)V1.1.2:"Transmissionrequirementsfornarrowbandwirelessterminals(handsfree)fromaQoSperspectiveasperceivedbytheuser".

[30] ETSI

TS

103

739(2010-09)V1.1.2:"Transmissionrequirementsforwidebandwirelessterminals(handsetandheadset)fromaQoSperspectiveasperceivedbytheuser".

[31] ETSI

TS

103

740(2010-09)V1.1.2:"Transmissionrequirementsforwidebandwirelessterminals(handsfree)fromaQoSperspectiveasperceivedbytheuser".

[32] ITU-T

Recommendation

P.380(11/2003):"Electro-acousticmeasurementsonheadsets".

[33] ITU-TRecommendationP.501Amendment1(2012):"Testsignalsforuseintelephonometry".

[34] ETSITS103106(2013-03)V1.2.1:"SpeechQualityperformanceinthepresenceofbackgroundnoise:Backgroundnoisetransmissionofmobileterminals-Objectivetestmethods".

[35] ETSIES202396-1(2012-10)V1.4.1:"Speechqualityperformanceinthepresenceofbackgroundnoise;Part1:Backgroundnoisesimulationtechniqueandbackgroundnoisedatabase".

[36] ETSIEG202396-3(2011-02)V1.3.1:"Speechqualityperformanceinthepresenceofbackgroundnoise;Part3:Backgroundnoisetransmission–objectivetestmethods:Backgroundnoisesimulationtechniqueandbackgroundnoisedatabase".

[37] ITU-TRecommendationP.56(12/2011):"Objectivemeasurementofactivespeechlevel".

[38] IEC61672:"Electroacoustics–soundlevelmeters-part1:specifications".

[39] 3GPP

TS

26.114:"IPMultimediaSubsystem(IMS);MultimediaTelephony;Mediahandlingandinteraction".

[40] 3GPP

TS

43.050:"TransmissionplanningaspectsofthespeechserviceintheGSMPublicLandMobileNetwork(PLMN)system".

[41] 3GPP

TS

51.010:"MobileStation(MS)conformancespecification;Part1:Conformancespecification".

[42] 3GPP

TS

23.203:"Policyandchargingcontrolarchitecture".

3 Definitions,symbolsandabbreviations

3.1 Definitions

Forthepurposesofthepresentdocumentthetermsnarrowband,wideband,super-widebandandfullbandrefertosignalsassociatedwiththecorrespondingoperatingmodesofthespeechcodecsspecifiedin5.2.

Forthepurposesofthepresentdocument,thetermsdB,dBr,dBm0,dBm0panddBA,shallbeinterpretedasdefinedinITU-TRecommendationG.100[42];thetermdBPashallbeinterpretedasthesoundpressurelevelrelativeto1

pascalexpressedindB(0

dBPaisequivalentto94

dB

SPL).

A3GPPsoftphoneisatelephonysystemrunningonageneralpurposecomputerorPDAcomplyingwiththe3GPPterminalacousticrequirements(TS26.131and26.132).

3.2 Abbreviations

Forthepurposesofthepresentdocument,thefollowingabbreviationsapply:

ADC AnaloguetoDigitalConverter

AMR AdaptiveMultiRate

CSS CompositeSourceSignal

DAC DigitaltoAnalogueConverter

DRP EardrumReferencePoint

DTX DiscontinuousTransmission

EEC ElectricalEchoControl

EEP EarEntrancePoint

EL EchoLoss

ERP EarReferencePoint

EVS EnhancedVoiceServices

FFT FastFourierTransform

HATS HeadandTorsoSimulator

IMS IPMultimediaSubsystem

LSTR ListenerSidetoneRating

LTE LongTermEvolution

MRP MouthReferencePoint

MS MobileStation

MTSI MultimediaTelephonyServiceforIMS

OLR OverallLoudnessRating

PCM PulseCodeModulation

PDA PersonalDigitalAssistant

POI PointofInterconnection(withPSTN)

PSTN PublicSwitchedTelephoneNetwork

RLR ReceiveLoudnessRating

RMS RootMeanSquared

SLR SendLoudnessRating

SS SystemSimulator

STMR SidetoneMaskingRating

SS SystemSimulator

TX Transmission

UE UserEquipment

UMTS UniversalMobileTelecommunicationsSystem

4 Interfaces

Theinterfacesrequiredtodefineterminalacousticcharacteristicsaretheacousticinterfaces,theairinterfaceandthepointofinterconnect(POI),seeFigure1.

TheAirInterfacesforGSM,3GandLTEarespecifiedbyGSM05,3GPP45,3GPP25and3GPP36seriesspecifications.MTSIspeechaspectsarespecifiedbyTS26.114[17].

Measurementscanbemadeusingasystemsimulator(SS)comprisingtheappropriateradioterminalequipmentandspeechtranscoder.Thelossesandgainsintroducedbythetestequipmentshallbeaccountedfor.

ThePOIwiththepublicswitchedtelephonenetwork(PSTN)isconsideredtohavearelativelevelof0

dBr.

Fiveclassesofacousticinterfaceareconsideredinthisspecification:

- HandsetUEincludingsoftphoneUEusedasahandset;

- HeadsetUEincludingsoftphoneUEusedwithheadset;

- VehicleMountedHands-freeUEincludingsoftphoneUEmountedinavehicle;

- Desktop-mountedhands-freeUEincludingsoftphoneUEwithexternalloudspeaker(s)usedinhands-freemode;

- Hand-heldhands-freeUEincludingsoftphoneUEwithinternalloudspeaker(s)usedinhands-freemode.

(SeedefinitionofsoftphoneinClause3.1)

NOTE: ThetestsetupforasoftphoneUEshallbederivedaccordingtothefollowingrules:

- WhenusingasoftphoneUEasahandset:thetestsetupshallcorrespondtohandsetmode.

- WhenusingasoftphoneUEwithheadset:thetestsetupshallcorrespondtoheadsetmode.

- WhenasoftphoneUEismountedinavehicle:thetestsetupshallcorrespondtovehicle-mountedhands-freemode.

- WhenusingasoftphoneUEinhands-freemode:

- Whenusinginternalloudspeaker(s),thetestsetupshallcorrespondtohand-heldhands-free.

- Whenusingexternalloudspeaker(s),thetestsetupshallcorrespondtodesktop-mountedhands-free.

5 Testconfigurations

Thissectiondescribesthetestsetupsforterminalacoustictesting.

Theconfigurationsareshownforone-channel(mono)operation,configurationsfortwo-channel(stereo)operationisforfurtherstudy.

NOTE: Iftheterminalhasseveralmechanicalconfigurations(e.g.,slidingdesignopenorclosed),allmanufacturer-definedconfigurationsshallbetested.

5.1 Setupforterminals

Thegeneralaccesstoterminalsisdescribedinfigure1.ThepreferredacousticaccesstoGSM,3GandLTEterminalsisthemostrealisticsimulationofthe“average”subscriber.ThiscanbemadebyusingHATS(headandtorsosimulator),withappropriateearsimulati