CN1848872B - Speech snap checking method under mobile nucleus network large traffic volume - Google Patents
Speech snap checking method under mobile nucleus network large traffic volume Download PDFInfo
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Abstract
A method for odd-testing voice quality of large telephone traffic at mobile core network includes calling relevant analog terminal in large telephone traffic test center by sound source terminal and detection terminal separately and holding on communication state, holding on communication state between said relevant analog terminals and broadcasting real voice signal from sound source terminal tothe other analog terminals at controller side of analog radio network as well as selecting a broadcasted analog terminal to carry out semi fixed chaining and unchaining to analog terminal connected with detection terminal repeatedly and randomly till add-test of voice quality is finalized.
Description
Technical field
The present invention relates to moving communicating field, especially relate to voice sampling observation method of testing and device thereof under a kind of mobile core network large traffic volume.
Background technology
At present, the big traffic ability meter of various commercializations is widely used in the Bulk Call test of mobile core network.All be simulation RNC (Radio NetworkController, radio network controller) equipment on these commercial tester principles, be used for chain of command and the user plane functions of analog simulation RNC, the interface with mobile core network is provided, realize the Bulk Call test function.Wherein, the user-plane voice quality test is to adopt the integration standard algorithm to realize, the wave file (Wave File) that promptly is to use computer to produce, by comparing it via the variation before and after the Network Transmission, calculate corresponding rank and fine or not degree in the standard, and then estimate the voice quality of network.Usually, the criterion that adopts has PESQ (Perceptual Evaluation of Speech Quality, the measurement of perception assessment speech quality), PSQM (Perceptual Speech Quality Measurement, perception speech quality is measured) and PAMS (Perceptual Analysis Measurement System, perception analysis is measured) etc.
PESQ be estimate all kinds of ad-hoc network conditions and speech coding and decoding than new standard.PESQ can estimate the quality of voice signal objectively according to some perceptual criteria, thereby the voice quality that can quantize balancing method is provided, and these criterions are based on human direct feel to voice quality.The PESQ standard has had considerable progress than its PSQM of predecessor.PESQ is combined togather some parts of PSQM and PAMS in fact exactly.
Because the sound resource file of the big traffic ability meter of integrated these canonical algorithms is for designing in advance and depositing, therefore it can only be from the angle analysis voice-over-net problem of receiving and transmitting signal difference, its major defect is can not reflect such as distinctive problems of data network such as time-delay, shake and packet losses, do not consider that network failure feels the influence that causes to the user, tester or client can't intuitively experience the quality of tonequality in real time, lack subjective perception.
By auditory perception is the most original real evaluation, and the advance of standard just shows itself and the degree of agreement of the mankind to the direct feel of voice quality.From the invention phone, the metering system of voice quality is subjective, and people have plucked a phone, the quality of the ear perceptual speech of choosing then, and this method is extensively admitted.Current, the subjective speech quality method of measurement is to be defined in P.800 average subjective value MOS (the mean opinion score) method in the standard of ITU-T, this MOS method is to ask 40～60 representatives to listen one section identical speech samples, then voice quality is estimated, evaluate and test based on subjectivity at last, the mankind answer and are investigated with the behavior of perceptual speech quality and quantize, answer the voice of which kind of rank quality, obtain how many average subjective value MOS, wherein the mankind will play main reflection effect.The corresponding relation of this voice quality and average subjective value provides the standard foundation for configuration, benchmark and the supervision of network.
Though average subjective testing accurate and effective, but, the greatest problem that this subjective method exists is in reality, it is that very difficulty is with expensive that the quality that allows the lineup answer voice and evaluation voice implements, and this desirable test effect only just can be experienced when opening pilot office usually.
Under the existing mobile communication technology condition, the quality of network quality is judged in the transmitting-receiving that commercial tester is based on speech reference signal, simulates real real environment that can not efficient real time, and listen at the realization scene, sense of reality.So operator and developer will open pilot office usually, adopt the MOS method to carry out actual verification, but need to expend huge financial resources and manpower.
Summary of the invention
The technical issues that need to address of the present invention provide voice sampling observation method of testing and the device thereof under the mobile core network large traffic volume, adopt this method and device thereof, can test the voice quality under the mobile core network large traffic volume accurately and effectively based on the subjectivity evaluation and test, and cost is very low.
In order to solve the problems of the technologies described above, the invention provides the voice sampling observation method of testing under a kind of mobile core network large traffic volume, test environment comprises the source of sound terminal that is used to produce real speech, be used to listen to the sense terminals of source of sound terminal voice signal, and the large speech affairs test instrument that is provided with some pseudo-terminals and analog wireless networks controller, this method comprises the steps:
(a) source of sound terminal and sense terminals respectively with the large speech affairs test instrument in corresponding pseudo-terminal set up communication linkage, and keep talking state;
(b) in the analog wireless networks controller side of large speech affairs test instrument, except keeping calling out mutually in twos between other pseudo-terminals of the pseudo-terminal of talking state and keeping talking state, realization big traffic simulation with source of sound terminal and sense terminals;
(c) the large speech affairs test instrument will keep the received real speech signal from the source of sound terminal of pseudo-terminal of talking state with the source of sound terminal, be broadcast to except keeping the pseudo-terminal of talking state and keep other pseudo-terminal the pseudo-terminal of talking state with sense terminals with the source of sound terminal;
(d) in the analog wireless networks controller side of large speech affairs test instrument, select a pseudo-terminal that in step (c), is broadcasted at random, with respect to keeping the pseudo-terminal of talking state to do semifixed link setup with sense terminals and tearing chain open, listen to the real speech signal of source of sound terminal in sense terminals, and make the subjectivity evaluation and test of voice quality;
(e) judge whether that needing to continue sampling listens to,, then remove former semifixed link, return (d) if need, otherwise process ends.
Further, the present invention also has following characteristics, and described step (a) is further divided into following steps:
(a1) pseudo-terminal calling tone source terminal in the large speech affairs test instrument, and keep talking state;
(a2) another pseudo-terminal calling detection terminal in the large speech affairs test instrument, and keep talking state.
Or described step (a) is further divided into following steps:
(a1) pseudo-terminal in the source of sound terminal call large speech affairs test instrument, and keep talking state;
(a2) sense terminals is called out another pseudo-terminal in the large speech affairs test instrument, and keeps talking state.
Further, the present invention also has following characteristics: described source of sound terminal is a mobile phone, and described sense terminals is a mobile phone.
Further, the present invention also has following characteristics: described source of sound terminal is a landline telephone, and described sense terminals is a mobile phone.
Further, the present invention also has following characteristics: described source of sound terminal is the voice-over-net phone based on Internet protocol, and described sense terminals is a mobile phone.
The present invention also provides a kind of large speech affairs test instrument that is used for the voice sampling observation method of testing under the described mobile core network large traffic volume, and this large speech affairs test instrument comprises analog wireless networks controller and some pseudo-terminals; Described analog wireless networks controller structurally is divided into chain of command, user's face and backstage, and chain of command is responsible for the transmitting-receiving of analog control signalling; User's face is responsible for the link of each communication between terminals and is set up, the semifixed link setup between the pseudo-terminal and tear chain open, and, realize the Bulk Call test with the corresponding pseudo-terminal of real speech signal broadcasting to this large speech affairs test instrument; Call flow control is responsible on the backstage, realizes man-machine interface.
Further, the present invention also has following characteristics: described large speech affairs test instrument adopts digital signal processor and Communication processor to realize.
Compared with prior art, the present invention has the following advantages:
Utilization of the present invention random sampling from a large amount of pseudo-terminals of doing the Bulk Call test, and do semifixed chain and the link setup torn open in analog wireless networks controller side, realization is inspected by random samples Bulk Call test speech channel at random by same individual, listen to real speech in real time, evaluation and test is tested the voice quality under the mobile core network large traffic volume accurately and effectively based on subjectivity, save a large amount of manpower and materials, greatly reduced testing cost.
Description of drawings
Fig. 1 is a network diagram of the present invention;
Fig. 2 is the realization flow figure of the sampling observation of the voice under mobile core network large traffic volume method of testing among the present invention.
Embodiment
For understanding the present invention in depth, the present invention is described in detail below in conjunction with drawings and the specific embodiments.
As shown in Figure 1, Bulk Call test environment of the present invention includes mobile core network, PSTN (Public Switched Telephone Network, public switched telephone network), true RNC (radio network controller), be used to produce real speech the source of sound terminal, be used to listen to the sense terminals of source of sound terminal voice signal and be provided with some pseudo-terminals and the large speech affairs test instrument of simulation RNC, wherein, PSTN and true RNC can choose one wantonly, also can exist simultaneously, and the source of sound terminal is a mobile phone A, and sense terminals is a mobile phone B.
Be a simulation RNC on this large speech affairs test instrument principle, adopt digital signal processor and Communication processor to realize, integrated pseudo-terminal in a large number is analogue mobile phone on it, sees A1～An, B1～Bn among Fig. 1; Simulation RNC structurally is divided into chain of command, user's face and backstage, and chain of command is responsible for the transmitting-receiving of analog control signalling; User's face is responsible for the link of each communication between terminals and is set up, the semifixed link setup between the analogue mobile phone and tear chain open, and, realize the Bulk Call test with the corresponding analogue mobile phone of real speech signal broadcasting to this large speech affairs test instrument; Call flow control is responsible on the backstage, realizes man-machine interface.
As shown in Figure 2, the sampling observation of the voice under mobile core network large traffic volume method of testing comprises the steps: among the present invention
Step 1 is built test environment as shown in Figure 1, requires equipment under test to have two real terminals, for example mobile phone A, mobile phone B; And the large speech affairs test instrument that is provided with some pseudo-terminals and simulation RNC.
Step 2, analogue mobile phone A1 in the large speech affairs test instrument calls out the real handset A that is used to produce real speech, set up communication linkage after (behind the off-hook) keep talking state, analogue mobile phone A1 can receive the real speech signal that real handset A sends like this; Analogue mobile phone B1 calling handset B in the large speech affairs test instrument sets up that (behind the off-hook) keeps talking state behind the communication linkage, thereby real handset B can listen to the voice signal that analogue mobile phone B1 sends.
Step 3, in simulation RNC side, call out mutually in twos and the maintenance talking state between other a large amount of analogue mobile phones, realize big traffic simulation, promptly call out analogue mobile phone B2 with analogue mobile phone A2, analogue mobile phone A3 calls out analogue mobile phone B3, analogue mobile phone A4 calls out analogue mobile phone B4, so that analogue mobile phone An calls out analogue mobile phone Bn or the like, existing single Communication processor module can realize 4000 tunnel telephone traffics, and do big traffic and keep, it is big more to call out many more telephone traffics, also high more to the disposal ability requirement of equipment under test.
Step 4, in simulation RNC side, the code stream (being the real speech signal) that analogue mobile phone A1 is received is broadcast on all analogue mobile phones except that analogue mobile phone A1, analogue mobile phone B1.
Step 5, in simulation RNC side, select an analogue mobile phone that is broadcasted at random, do semifixed link setup (also can be described as semifixed unidirectional continuing) with respect to analogue mobile phone B 1, promptly be the pairing VPI of analogue mobile phone (the Virtual Path Identifier that selects at random, the virtual path sign)/VCI (VirtualCircuit Identifier, virtual channel identifier)/CID (Connection Identification, connection identifier) is routed on the VPI/VCI/CID of analogue mobile phone B1 correspondence, thereby its code stream is continued to analogue mobile phone B1.
Step 6 is listened to the real speech signal of mobile phone A with mobile phone B, and voice quality is made subjective evaluation and test.
Step 7 judges whether to sample repeatedly and listens to, if need, then removes former semifixed link, returns step 5, otherwise execution in step eight.
Step 8, the sampling observation test of conclusion sound quality adopts the MOS method to carry out actual verification.
As a kind of conversion of the specific embodiment of the invention, can call out analogue mobile phone A1 in the large speech affairs test instrument by described mobile phone A, and keep talking state; Described mobile phone B is called out the analogue mobile phone B1 in the large speech affairs test instrument, and keeps talking state.
As a kind of conversion of the specific embodiment of the invention, described source of sound terminal is a landline telephone or based on the voice-over-net phone of IP (Internet protocol).
As a kind of conversion of the specific embodiment of the invention, described source of sound terminal can be two terminals simultaneously, is respectively mobile phone and landline telephone; And sense terminals also should be two mutually, is respectively to be used to listen to the terminal of mobile phone and the terminal that is used to listen to landline telephone.
Utilize the present invention, same individual just can inspect by random samples from the pseudo-terminal of doing the Bulk Call test and listen to, even under extreme case, listen to all terminals, direct feel is checked out the quality of tonequality under the Bulk Call situation and the disposal ability of tested equipment, when adopting the MOS method to carry out actual verification, avoid offering the pilot office that expends huge financial resources and manpower, thereby greatly reduce testing cost.
Claims (8)
1. the sampling observation of the voice under mobile core network large traffic volume method of testing, test environment comprises the source of sound terminal that is used to produce real speech, be used to listen to the sense terminals of source of sound terminal voice signal, and the large speech affairs test instrument that is provided with some pseudo-terminals and analog wireless networks controller, this method comprises the steps:
(a) source of sound terminal and sense terminals respectively with the large speech affairs test instrument in corresponding pseudo-terminal set up communication linkage, and keep talking state;
(b) in the analog wireless networks controller side of large speech affairs test instrument, except keeping calling out mutually in twos between other pseudo-terminals of the pseudo-terminal of talking state and keeping talking state, realization big traffic simulation with source of sound terminal and sense terminals;
(c) the large speech affairs test instrument will keep the received real speech signal from the source of sound terminal of pseudo-terminal of talking state with the source of sound terminal, be broadcast to except keeping the pseudo-terminal of talking state and keep other pseudo-terminal the pseudo-terminal of talking state with sense terminals with the source of sound terminal;
(d) in the analog wireless networks controller side of large speech affairs test instrument, select a pseudo-terminal that in step (c), is broadcasted at random, with respect to keeping the pseudo-terminal of talking state to do semifixed link setup with sense terminals, listen to the real speech signal of source of sound terminal in sense terminals, and make the subjectivity evaluation and test of voice quality;
(e) judge whether that needing to continue sampling listens to,, then remove former semifixed link, return (d) if need, otherwise process ends.
2. the voice sampling observation method of testing under the mobile core network large traffic volume according to claim 1 is characterized in that described step (a) is further divided into following steps:
(a1) pseudo-terminal calling tone source terminal in the large speech affairs test instrument, and keep talking state;
(a2) another pseudo-terminal calling detection terminal in the large speech affairs test instrument, and keep talking state.
3. the voice sampling observation method of testing under the mobile core network large traffic volume according to claim 1 is characterized in that described step (a) is further divided into following steps:
(a1) pseudo-terminal in the source of sound terminal call large speech affairs test instrument, and keep talking state;
(a2) sense terminals is called out another pseudo-terminal in the large speech affairs test instrument, and keeps talking state.
4. according to the sampling observation of the voice under claim 2 or 3 described mobile core network large traffic volumes method of testing, it is characterized in that: described source of sound terminal is a mobile phone, and described sense terminals is a mobile phone.
5. according to the sampling observation of the voice under claim 2 or 3 described mobile core network large traffic volumes method of testing, it is characterized in that: described source of sound terminal is a landline telephone, and described sense terminals is a mobile phone.
6. according to the sampling observation of the voice under claim 2 or 3 described mobile core network large traffic volumes method of testing, it is characterized in that: described source of sound terminal is the voice-over-net phone based on Internet protocol, and described sense terminals is a mobile phone.
7. one kind is used for the large speech affairs test instrument of method according to claim 1, and it is characterized in that: this large speech affairs test instrument comprises analog wireless networks controller and some pseudo-terminals; Described analog wireless networks controller structurally is divided into chain of command, user's face and backstage, and chain of command is responsible for the transmitting-receiving of analog control signalling; User's face is responsible for the link of each communication between terminals and is set up, the semifixed link setup between the pseudo-terminal and tear chain open, and, realize the Bulk Call test with the corresponding pseudo-terminal of real speech signal broadcasting to this large speech affairs test instrument; Call flow control is responsible on the backstage, realizes man-machine interface.
8. large speech affairs test instrument according to claim 7 is characterized in that: described large speech affairs test instrument adopts digital signal processor and Communication processor to realize.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200510063140A CN1848872B (en) | 2005-04-05 | 2005-04-05 | Speech snap checking method under mobile nucleus network large traffic volume |
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| CN200510063140A CN1848872B (en) | 2005-04-05 | 2005-04-05 | Speech snap checking method under mobile nucleus network large traffic volume |
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| CN1848872B true CN1848872B (en) | 2010-05-05 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101534353B (en) * | 2009-03-31 | 2012-01-04 | 华为技术有限公司 | Wireless network vocal quality measuring method and terminal thereof |
| CN101888658B (en) * | 2010-07-16 | 2012-10-03 | 北京市万网元通信技术有限公司 | GPRS (General Packet Radio Service) core network simulation and test system |
| CN102421127A (en) * | 2010-09-28 | 2012-04-18 | 飞思达技术（北京）有限公司 | Method for testing core network data traffic performance through signaling simulation |
| CN102572910B (en) * | 2010-12-22 | 2016-03-16 | 鼎桥通信技术有限公司 | Terminal traffic testing method and system |
| CN103310799A (en) * | 2012-03-16 | 2013-09-18 | 亚旭电子科技(江苏)有限公司 | Sound quality detection method and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3212006A1 (en) * | 1982-03-31 | 1983-10-13 | Siemens AG, 1000 Berlin und 8000 München | Method for a computer-controlled device for traffic simulation in telephone switching systems |
| CN1378396A (en) * | 2001-03-30 | 2002-11-06 | 深圳市中兴通讯股份有限公司 | Large traffic volume test platform of base station subsystem |
| CN1494338A (en) * | 2002-10-31 | 2004-05-05 | 深圳市中兴通讯股份有限公司上海第二 | Large telephone traffic volume simulation testing system of base station controller |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3212006A1 (en) * | 1982-03-31 | 1983-10-13 | Siemens AG, 1000 Berlin und 8000 München | Method for a computer-controlled device for traffic simulation in telephone switching systems |
| CN1378396A (en) * | 2001-03-30 | 2002-11-06 | 深圳市中兴通讯股份有限公司 | Large traffic volume test platform of base station subsystem |
| CN1494338A (en) * | 2002-10-31 | 2004-05-05 | 深圳市中兴通讯股份有限公司上海第二 | Large telephone traffic volume simulation testing system of base station controller |
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