1、 TIA-1042-A March 2013 Electro-Acoustic Recommended Minimum Performance Specification for cdma2000 Mobile Stations NOTICE TIA Engineering Standards and Publications are designed to serve the public interest through eliminating misunderstandings between manufacturers and purchasers, facilitating inte
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5、r all applicable regulatory requirements. It is the responsibility of the user of this Standard to establish appropriate safety and health practices and to determine the applicability of regulatory limitations before its use. (From Project No. TIA-PN-1042-A, formulated under the cognizance of the TI
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18、. THE FOREGOING NEGATION OF DAMAGES IS A FUNDAMENTAL ELEMENT OF THE USE OF THE CONTENTS HEREOF, AND THESE CONTENTS WOULD NOT BE PUBLISHED BY TIA WITHOUT SUCH LIMITATIONS. 3GPP2 C.S0056-A v1.0 ! ! Revision History Revision Description of Changes Date Rev 0 v1.0 Initial Publication July 2005 Rev A v1.
19、0 Publication version of Revision A, version 1.0 March 2013 3GPP2 C.S0056-A v1.0 “! CONTENTS 1! Introduction . 1-1! 1.1! Scope 1-1! 1.2! Document Conventions 1-1! 1.2.1! Requirements Language 1-1! 1.2.2! Other Conventions 1-1! 1.3! References . 1-1! 1.3.1! Normative References 1-1! 1.3.2! Informativ
20、e References 1-3! 1.4! Terms 1-3! 2! Electro-Acoustic Requirements . 2-1! 2.1! Receive Audio Interface 2-1! 2.1.1! Receive Audio Frequency Response 2-1! 2.1.1.1! Definition 2-1! 2.1.1.2! Method of Measurement 2-1! 2.1.1.3! Minimum Standard . 2-1! 2.1.2! Receive Audio Sensitivity . 2-3! 2.1.2.1! Defi
21、nition 2-3! 2.1.2.2! Method of Measurement 2-3! 2.1.2.3! Minimum Standard . 2-3! 2.1.3! Idle channel noise in receiving direction . 2-4! 2.1.3.1! Definition 2-4! 2.1.3.2! Method of Measurement 2-4! 2.1.3.3! Minimum Standard . 2-4! 2.2! Send Audio Interface 2-4! 2.2.1! Send Audio Frequency Response .
22、 2-4! 2.2.1.1! Definition 2-4! 2.2.1.2! Method of Measurement 2-4! 2.2.1.3! Minimum Standard . 2-4! 2.2.2! Send Audio Sensitivity . 2-5! 2.2.2.1! Definition 2-5! 2.2.2.2! Method of Measurement 2-6! 2.2.2.3! Minimum Standard . 2-6! 2.2.3! Weighted Terminal Coupling Loss 2-6! 2.2.3.1! Definition 2-6!
23、2.2.3.2! Method of Measurement 2-6! 2.2.3.3! Minimum Standard . 2-6!3GPP2 C.S0056-A v1.0 “! 2.2.4! Idle channel noise in sending direction 2-6! 2.2.4.1! Definition 2-6! 2.2.4.2! Method of Measurement 2-6! 2.2.4.3! Minimum Standard . 2-7! 2.3! Loudness Contrast . 2-7! 2.3.1! Definition 2-7! 2.3.2! Me
24、thod of Measurement 2-7! 2.3.3! Minimum Standard . 2-7! 2.4! Wideband to Narrowband Loudness Contrast . 2-7! 2.4.1! Definition 2-7! 2.4.2! Method of Measurement 2-7! 2.4.3! Minimum Standard . 2-7! 2.5! Talker Sidetone characteristics 2-8! 2.5.1! Talker Sidetone Masking Rating (STMR) . 2-8! 2.5.1.1!
25、Definition 2-8! 2.5.1.2! Method of Measurement 2-8! 2.5.1.3! Minimum Standard . 2-8! 2.5.2! Talker Sidetone Delay 2-8! 2.5.2.1! Definition 2-8! 2.5.2.2! Method of Measurement 2-8! 2.5.2.3! Minimum Standard . 2-8! 2.6! Mobile Station Delay 2-8! 2.6.1! Definition 2-8! 2.6.2! Method of measurement 2-9!
26、 2.6.3! Minimum Standard . 2-10! 2.7! Speech Quality in sending in the presence of ambient noise . 2-10! 2.7.1! Definition 2-10! 2.7.2! Method of Measurement 2-10! 2.7.3! Minimum Standard . 2-12! 3! Electro-acoustic Standard Test Conditions . 3-1! 3.1! Reference Base Station Simulator Requirements 3
27、-1! 3.1.1! Receive Level . 3-1! 3.1.2! Send Level . 3-1! 3.1.3! Other Requirements 3-1! 3.2! Ear Simulators 3-1! 3.3! Acoustic Test Signals . 3-1! 3.3.1! Normal Test Signal 3-1!3GPP2 C.S0056-A v1.0 “! 3.3.2! Echo-Loss Test Signal 3-1! 3.4! Standard Test Conditions 3-2! ANNEX A:! Informative Loudness
28、 Rating Conversions . A-1! ANNEX B:! Informative Maximum Acoustic Pressure Level . B-1! ANNEX C:! Informative Ear Simulator C-1! ANNEX D:! Informative Performance of the ETSI TS 103 106 model with SO68 COP0 test conditions . D-1! D.1! Summary . D-1! D.2! Subjective data Normalization D-1! D.3! Objec
29、tive data treatment D-4! D.4! Performance evaluation of objective predictor methodology D-7! D.5! Performance of ITU-T P.863 as an objective predictor of OVRL quality D-7!3GPP2 C.S0056-A v1.0 “#! TABLES Table 2.1-1 Receive Frequency Response Mask . 2-1! Table 2.1-2 - Diffuse-field correction for rec
30、eive frequency response measurements 2-2! Table 2.2-1 - Send Frequency Response Masks 2-5! Table 2.7-1 - Ambient noise types for measurement . 2-11!3GPP2 C.S0056-A v1.0 #! FIGURES Figure 2.1-1 Receive Frequency Response Masks 2-3! Figure 2.2-1 Send Frequency Response Mask . 2-5! Figure 2.6-1 Mobile
31、station delay measurement 2-9! Figure D-1 OVRL scores for reference conditions of 9 different listening experiments according to 3GPP SA4 Ext_ATS work item subjective test framework D-2! Figure D-2 SIG scores for reference conditions of 9 different listening experiments according to 3GPP SA4 Ext_ATS
32、 work item subjective test framework D-2! Figure D-3 BAK scores for reference conditions of 9 different listening experiments according to 3GPP SA4 Ext_ATS work item subjective test framework D-3! Figure D-4 Scatter plot of normalized subjective scores and ETSI TS 103 106 objective predicted scores
33、for Experiment 1 D-5! Figure D-5 Scatter plot of normalized subjective scores and ETSI TS 103 106 objective predicted scores for Experiment 3 D-6! Figure D-6 Scatter plots of P.OLQA scores x ITU-T P.835 OVRL scores . D-8! Figure D-7 Scatter plots of ETSI TS 103 106 scores x ITU-T P.835 OVRL scores .
34、 D-10!3GPP2 C.S0056-A v1.0 #“! FOREWORD This foreword is not part of this document. This document was prepared by the Third Generation Partnership Project 2 (3GPP2). .3GPP2 C.S0056-A v1.0 $%$! 1 INTRODUCTION $! 1.1 Scope $&! however, methods other than those recommended may suffice for the same purp
35、ose. $! The electro-acoustic requirements in this document are not applicable to SO77 $(! operation. $)! 1.2 Document Conventions $*! 1.2.1 Requirements Language $+! “Shall” and “shall not” identify requirements to be followed strictly to conform to this $,! document and from which no deviation is p
36、ermitted. “Should” and “should not” indicate $-! that one of several possibilities is recommended as particularly suitable, without &.! mentioning or excluding others, that a certain course of action is preferred but not &$! necessarily required, or that (in the negative form) a certain possibility
37、or course of &! action is discouraged but not prohibited. “May” and “need not” indicate a course of &! action permissible within the limits of the document. “Can“ and “cannot” are used for &(! statements of possibility and capability, whether material, physical or causal. &)! 1.2.2 Other Conventions
38、 &*! 1. “Base station” refers to the functions performed on the land side, which are typically &+! distributed among a cell, a sector of a cell, and a mobile communications switching &,! center. &-! 2. The following operators define mathematical operations: .! x indicates multiplication. $! / indica
39、tes division. &! + indicates addition. ! - indicates subtraction. (! * indicates complex conjugation. )! ! indicates a member of the set. *! “x# indicates the largest integer less than or equal to x: “1.1# = 1, “1.0# = 1. +! |x| indicates the absolute value of x: |-17|=17, |17|=17. ,! 1.3 References
40、 -! 1.3.1 Normative References (.! The following standards contain provisions which, through reference in this text, ($! constitute provisions of this Standard. At the time of publication, the editions indicated (&! were valid. All standards are subject to revision, and parties to agreements based on (! this Standard are encouraged to investigate the possibility of applying the most recent (! editions of the standards indicated below. ANSI and TIA maintain registers of currently ()! valid national standards published by them. (*!
