WO2011137810A1

WO2011137810A1 - Method, system, and device for testing speech quality

Info

Publication number: WO2011137810A1
Application number: PCT/CN2011/074496
Authority: WO
Inventors: 李力; 王勇
Original assignee: 华为技术有限公司
Priority date: 2010-08-31
Filing date: 2011-05-23
Publication date: 2011-11-10
Also published as: CN102143524B; CN102143524A

Abstract

A method, a system and a device for testing speech quality are provided. The method includes that first speech quality level information, returned respectively from the speech terminals establishing calling connection, after speech quality tests to speech paths bearing the calling connection are carried out independently by the speech terminals, is received (100); if it is detected that any one piece of first speech quality level information is lower than a preset speech quality standard, the speech terminals are indicated to respectively carry out speech quality tests for loop back paths between a core network element and themselves (101); second speech quality level information, respectively returned from the speech terminals, after speech quality tests are carried out for the loop back paths between the core network element and themselves, is received (102); according to the received second speech quality level information, fault nodes, causing that the speech quality of the paths is lower than the preset speech quality standard, are determined (103). Detection of fault nodes causing quality problems in speech paths are realized using the method, and thereby speech paths can be optimized and improved, and speech quality of speech terminals is enhanced.

Description

Voice quality test method, system and equipment

This application is submitted to the Chinese Patent Office on August 31, 2010, and the application number is

201010270617.7, the priority of the Chinese patent application entitled "Test Method, System and Apparatus for Voice Quality", the entire contents of which are incorporated herein by reference.

Technical field

The embodiments of the present invention relate to voice testing technologies, and in particular, to a voice quality testing method, a system, a voice testing center, and a voice terminal, and belong to the field of communications technologies.

Background technique

With the continuous maturity of communication technologies, voice services have become more and more widely used. In order to better transmit voice signals to meet the good experience of end users for voice services, it is necessary to evaluate the voice service quality of communication networks. test.

The existing voice service quality assessment methods are usually based on the Mean Opinion Score (MOS) mechanism. Common methods include subjective MOS value evaluation methods and objective MOS value evaluation methods. In the MOS mechanism, the MOS value is an important indicator for measuring the speech quality of the communication system, and according to the different distortion conditions of the speech quality, the MOS value is divided into five levels of 1 to 5 points. Different MOS scores represent different voice qualities. The larger the MOS value, the better the voice quality is represented, and the MOS value can be accurate to the order of 0.1 MOS.

Although the quality of voice communication is measured based on MOS values, the difference between the subjective MOS value evaluation method and the objective MOS value evaluation method is: The subjective MOS value evaluation method uses ITU-T P.800 Recommendation, which is for speech. The test is carried out by comparing the subjective feelings of the original speech and the systematically processed degraded speech by different people, and then obtaining the MOS score, and finally obtaining the MOS average value; and the objective MOS value evaluation adopts ITU-T P. The Perceptual evaluation of speech quality (PESQ) method provided by Recommendation 862, which is for speech The test is carried out by comparing the original speech with the system-processed degraded speech through a dedicated test instrument or software.

Compared with the subjective MOS value evaluation method, the objective MOS value evaluation method does not need to find multiple suitable reviewers for quality evaluation. The test results are not affected by the test environment and subjective factors of the reviewer, and can objectively reflect the voice. Quality status, credibility and test efficiency are also relatively high. However, the objective MOS value estimation method also has the following defects: Although the objective MOS value evaluation method can objectively test the degradation of speech quality in the path, it cannot further detect the specific node that causes the speech quality degradation or The path, that is, the detailed location of the speech quality problem cannot be detected, and the subsequent optimization of the degraded voice call cannot be performed on the basis that the cause of the speech quality degradation cannot be known.

Summary of the invention

The embodiments of the present invention provide a method, a system, and a device for testing voice quality, which are used to solve the problem that the existing voice quality assessment method cannot detect and determine the specific node or path that causes the voice quality degradation, and thus cannot perform the degraded voice call. The problem of optimizing the processing.

To achieve the above object, an embodiment of the present invention provides a method for testing voice quality, including: receiving, by a voice terminal that establishes a call connection, a voice quality assessment test for each voice connection that carries the call connection, and respectively returning the first Voice quality level information;

If it is detected that any of the first voice quality level information is lower than a preset voice quality standard, the voice terminal is instructed to perform a voice quality assessment test on the loopback path between itself and the core network element;

Receiving, by the voice terminal, the second voice quality level information respectively returned after performing voice quality assessment tests on the loopback path of the core network element and the core network element; And determining, according to the received second voice quality level information, a fault node that causes a voice quality of the voice path to be lower than the preset voice quality standard.

To achieve the above object, an embodiment of the present invention further provides a voice quality testing method, including: performing a voice quality assessment test on a voice path, and transmitting the first voice quality level information obtained by the test to a corresponding voice quality. test Center;

Receiving, after receiving the indication information returned by the voice quality testing center for performing a voice quality assessment test on the loopback path between the core network element and the core network element, performing voice quality assessment test on the loopback path, generating a second voice quality level information, where the indication information is sent by the voice quality testing center after detecting that the first voice quality level information is lower than a preset voice quality standard; sending the second voice quality level information And the voice quality testing center is configured to determine, according to the second voice quality level information, the fault node that causes the voice quality of the voice path to be lower than the preset voice quality standard.

To achieve the above object, an embodiment of the present invention further provides a voice quality testing center, including: a first receiving module, configured to receive a voice connection assessment voice test for a voice terminal that establishes a call connection The first voice quality level information returned afterwards;

a test indication module, configured to: when detecting that any of the first voice quality level information received by the first receiving module is lower than a preset voice quality standard, instructing the voice terminal to separately connect to the core network element Inter-loop path for voice quality assessment testing;

a second receiving module, configured to receive second voice quality level information that is returned by the voice terminal after performing voice quality assessment tests on the loopback path of the core network element and the core network element respectively; The second voice quality level letter received by the second receiving module And determining, by the faulty node, the voice quality of the voice path is lower than the preset voice quality standard.

To achieve the above, the embodiment of the present invention further provides a voice terminal, including:

a first test module, configured to perform a voice quality assessment test on the voice path in which the voice terminal is located, and send the first voice quality level information obtained by the test to a corresponding voice quality test center; Receiving, by the voice quality testing center, indication information for indicating a voice quality assessment test on a loopback path between the core network element and the core network element, where the indication information is detected by the voice quality testing center The first voice quality level information is sent after being lower than the preset voice quality standard;

a second test module, configured to perform a voice quality assessment test on the loopback path according to the indication information received by the indication information receiving module, to generate second voice quality level information;

a second information sending module, configured to send the second voice quality level information to the voice quality testing center, so that the voice quality testing center determines, according to the second voice quality level information, that the voice path is caused The voice quality is lower than the faulty node of the preset voice quality standard.

In order to achieve the above object, an embodiment of the present invention further provides a voice quality testing system, including: the foregoing voice quality testing center, at least two voice terminals, and a core network element;

The voice quality testing center is respectively connected to the voice terminal and the core network element, and the voice terminal is connected to the core network element.

The method, system and device for testing the voice quality provided by the embodiment of the present invention, after receiving the voice quality assessment test of the connected voice path by the voice terminal that has established the call connection, and returning the first voice quality level information, The first voice quality level information is detected and detected When any of the received first voice quality level information is lower than the preset voice quality standard, the voice terminal that establishes the call connection performs further voice quality assessment test on the loopback path between the core network element and the core network element, and returns The second voice quality level information respectively tested, so that according to the second voice quality level information returned by each voice terminal, it is possible to know a specific node or path that causes a quality problem of the voice path, and further, for a node or path where quality problems occur, The voice path can be further optimized and improved, and finally the voice quality of the voice terminal is improved.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any inventive labor. 1 is a flowchart of a method for testing voice quality according to an embodiment of the present invention; FIG. 2 is a flowchart of another method for testing voice quality according to an embodiment of the present invention; A signaling diagram of a voice quality test method; FIG. 4 is a schematic structural diagram of a voice quality test center according to an embodiment of the present invention; FIG. 5 is a schematic diagram of another voice quality test center according to an embodiment of the present invention. FIG. 6 is a schematic structural diagram of a voice terminal according to an embodiment of the present invention; FIG. 7 is a schematic structural diagram of another voice terminal according to an embodiment of the present invention;

FIG. 8 is a schematic structural diagram of a voice quality test system according to an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is a partial embodiment of the invention, and not all of the embodiments. Based on the present invention All other embodiments obtained by those skilled in the art without creative efforts are within the scope of the present invention.

FIG. 1 is a flowchart of a method for testing a voice quality according to an embodiment of the present invention. As shown in FIG. 1 , the method in this embodiment includes the following steps:

Step 100: Receive, by the voice terminal that establishes the call connection, the first voice quality level information respectively returned after performing voice quality assessment tests on the voice path that carries the call connection.

In the embodiment of the present invention, in addition to the voice call capability of the ordinary voice terminal, the voice terminal that initiates and establishes the call connection has the capability of voice quality assessment test, that is, the ability to test the voice quality level of the voice channel. In the embodiment of the present invention, in order to perform a voice quality assessment test on the voice path after the voice terminal separately, the voice quality degradation result can be analyzed and initiated according to the tested voice quality result, and the process of determining the voice quality degradation location path is determined. In the voice quality testing system of the embodiment of the present invention, a voice quality testing center is further provided for the voice terminal.

The voice quality test center is used to control the quality assessment test, detection and analysis of the voice path initiated by the voice terminal to cause the degradation of the voice quality, and to find a specific node or path that determines the degradation of the voice quality. Based on the setting of the voice quality test center, the two voice terminals that establish the call connection will respectively test and represent the voice quality status of the voice path between the two voice channels after performing voice quality assessment tests on the voice path carrying the call connection. The first voice quality level information is returned to the voice quality testing center, so that the voice quality testing center detects the voice quality of the voice path according to the received first voice quality level information, thereby determining whether the voice path has degraded the voice quality. .

Step 101: If it is detected that any of the first voice quality level information is lower than the preset voice quality standard, the voice terminal is instructed to perform voice quality assessment on the loopback path between itself and the core network element. Try

After receiving the first voice quality level information of the voice quality of the voice path between the voice terminals, the voice quality test center detects the received first voice quality level information, specifically detecting the first Whether the voice quality level information meets the preset voice quality standard. Specifically, the first voice quality level information sent by the voice terminal generally includes the tested MOS value corresponding to the voice path, and thus the voice quality testing center can detect according to the size of the MOS value included in the first voice quality level information. Know the voice quality of the voice path between two voice terminals.

Generally, in order to define whether the voice path has a voice quality problem according to the MOS value in the first voice quality level information, in the voice quality test center, a MOS threshold value representing the lowest normal voice quality is set (for example, the MOS gate The limit can usually be set to 3 based on the empirical value. If the voice quality test center detects that the MOS value in any of the first voice quality level information is lower than the MOS threshold, the voice quality of the voice path between the two voice terminals and the voice terminal is lower than a normal level. Therefore, in the embodiment of the present invention, in order to further detect the cause of degradation of the voice quality, and determine the specific node and path where the voice quality is degraded, the voice quality testing center controls the voice terminal to initiate a further voice quality testing process. Specifically, the voice quality testing center will instruct the two voice terminals that maintain the call connection to perform further voice quality assessment tests on the loopback path between themselves and the core network element.

Step 102: Receive second voice quality level information that is returned by the voice terminal after performing voice quality assessment tests on the loopback path of the core network element and the core network element respectively.

Step 103: Determine, according to the received second voice quality level information, a fault node that causes a voice quality of the voice path to be lower than a preset voice quality standard. Specifically, the loopback path between the voice terminal and the core network element, that is, the voice path between the voice terminal and the core network element, represents that the voice stream is sent from the voice terminal to the core network element, and then from the core network element. Return to the self-loop path of the voice terminal. The core network element in the embodiment of the present invention is usually a Media Gate Way (MGW) device or a Mobile Switching Center (MSC) device in the core network.

Since the loopback path of any voice terminal and the core network element is independent of another voice terminal, the voice quality test result of the loopback path substantially only involves the voice terminal and the core network element that initiate the test. Two devices. Therefore, the voice quality test is performed on each of the corresponding loopback paths by the two voice terminals, and the result of the test can at least reflect whether the voice terminals have voice quality problems when the voice terminals are individually carried. Therefore, it can reflect that the voice path quality detected by the voice quality testing center is lower than the specific fault node or the specific fault path of the voice quality standard problem. For example, it is a single-node single-path problem, that is, only one side of the voice terminal and one side of the voice terminal has a quality problem; or a two-node dual-channel problem, that is, the communication link between the voice terminals on both sides and the voice terminals on both sides A quality problem has occurred; or there is no quality problem with the voice terminals on both sides, but the voice stream quality of the core network element has a problem.

Therefore, after the voice terminals perform voice quality assessment tests on the loopback path between themselves and the core network element, the tested second voice quality level information reflecting the voice quality status of the corresponding loopback path is returned to The voice quality testing center, based on the received two second voice quality level information, can detect and analyze the reason why the voice quality of the voice channel is lower than the voice quality standard, and find a fault node that causes degradation of voice quality. And the fault path. Therefore, compared with the existing subjective MOS value evaluation method or the objective MOS value evaluation method, not only the quality degradation of the voice path is detected, but also the cause of the speech quality degradation is detected. Nodes and paths that cause degradation in speech quality are determined. Therefore, based on the results of the detection, the voice quality testing center can optimize and improve the quality degradation of the nodes or paths to improve the voice quality of the voice path.

The method for testing the voice quality in this embodiment, after receiving the voice quality assessment test of the connected voice path by the voice terminal that has established the call connection, and returning the first voice quality level information, the first voice quality level The information is detected, and when it is detected that any of the received first voice quality level information is lower than the preset voice quality standard, the voice terminal that establishes the call connection further performs a loopback path between the core network element and the core network element. The voice quality assessment test returns the second voice quality level information that is tested, so that according to the second voice quality level information returned by each voice terminal, the specific fault node and the fault path that cause the quality problem of the voice path can be known, and then For the node or path where the quality problem occurs, the voice path can be further optimized and improved, and the voice quality of the voice terminal is improved.

FIG. 2 is a flowchart of another method for testing voice quality according to an embodiment of the present invention. This embodiment describes a method for testing voice quality according to an embodiment of the present invention from the perspective of any voice terminal corresponding to a voice quality testing center. As shown in FIG. 2, the method in this embodiment specifically includes the following steps: Step 200: Perform a voice quality assessment test on the voice path, and send the first voice quality level information obtained by the test to the corresponding voice quality test center. ;

In this embodiment, in addition to the voice call capability of the ordinary voice terminal, the voice terminal also has the ability to evaluate and test the voice quality of the voice path. Specifically, when the voice terminal establishes a call connection with another voice terminal, that is, after establishing a voice path between the two, the voice terminal can perform voice quality assessment test on the voice path in which the voice terminal is located. The voice quality assessment test method is based on the existing PESQ test method, that is, the voice terminal passes the original voice and the voice pass After the transmission, there is a degraded voice for quality comparison, and the first voice quality level information representing the voice quality condition of the voice path in which the voice is located can be tested.

After the voice terminal obtains the first voice quality level information through the evaluation test, the first voice quality level information is sent to the corresponding voice quality test center, so that the voice quality test center can according to the received first voice quality level information. The voice quality status of the voice path is known, and based on the learned status information, it can be determined whether the voice path has degraded the voice quality.

Step 201: If receiving the indication information returned by the voice quality testing center for indicating the voice quality assessment test of the loopback path between the core network element and the core network element, performing voice quality assessment test on the loopback path, generating the first Two voice quality level information;

After receiving the first voice quality level information returned by the voice terminal and representing the voice quality of the voice path in which the voice terminal is located, the voice quality test center detects the first voice quality level information. Specifically, the first voice quality level information sent by the voice terminal usually includes a MOS value that directly reflects the voice quality condition of the voice path, and thus, according to the preset, the MOS value included in the first voice quality level information, and according to the preset The MOS threshold, the voice quality test center can directly detect the voice quality of the voice path in which the voice terminal is located, specifically detecting whether the voice quality of the voice path satisfies a preset voice quality standard, and the voice quality standard It is usually the minimum standard that can tolerate normal voice quality.

If the voice quality test center detects that the voice quality of the voice path in which the voice terminal is located is lower than the preset normal standard, in order to further detect the cause of the degradation of the voice quality, and the faulty node and the fault path that cause the degradation of the voice quality. The Voice Quality Test Center will control the initiation of further voice quality testing procedures. Specifically, the voice quality testing center separately sends indication information to two voice terminals in the voice path to indicate that each of the two voice terminals has a ring between itself and the core network element. The back channel performs a voice quality assessment test and returns the test result to the voice quality test center.

Therefore, for the voice terminal, if the indication information sent by the voice quality testing center is received, the voice quality assessment test is performed on the loopback path between the core network element and the core network element according to the indication information, When the test itself and the core network element carry the voice path, whether the voice path of the separately carried voice path will have a voice quality problem, thereby detecting whether the voice quality problem occurring when establishing the voice path with the peer is related to itself. The voice quality test process performed by the voice terminal on the loopback path between the core network element and the core network element can also be performed based on the existing PESQ method, so as to finally obtain the MOS including at least the voice quality status reflecting the loopback path. The second voice quality level information of the value.

Step 202: Send the second voice quality level information to the voice quality testing center, so that the voice quality testing center determines, according to the received second voice quality level information, that the voice quality of the voice path is lower than a preset voice quality standard. Faulty node.

Specifically, after the second voice quality level information representing the voice quality of the loopback path is obtained, the voice terminal returns the second voice quality level information to the voice quality testing center, so that the voice quality testing center determines and generates the voice according to the analysis. The fault node and the fault path of the voice quality problem of the path, that is, the reason for detecting the voice quality problem according to this detection.

The second voice quality level information returned by the voice terminal directly reflects whether the two voice terminals on the voice path are connected to the core network element separately, whether voice quality problems occur, and voice quality problems occur. The severity of the situation. Therefore, according to the obtained second voice quality level information, the voice quality testing center can detect and analyze the faulty node and the path where the voice quality problem occurs, so that the reason for the voice quality degradation of the direct voice path of the two voice terminals can be known. For example, the voice path is a single-node single-channel problem, that is, only one side of the voice terminal and one side language There is a quality problem in the communication link of the audio terminal; or there is a two-node dual-path problem, that is, quality problems occur in the communication links of the voice terminals on both sides and the voice terminals on both sides.

Therefore, compared with the existing subjective MOS value evaluation method or the objective MOS value evaluation method, the embodiment of the present invention not only detects whether the quality of the voice path is degraded, but also detects the occurrence of speech quality degradation. The reason is that nodes and paths that cause degradation of speech quality are detected. Further, on the basis of this, the voice quality testing center can optimize and improve the processing operation on the node or path where the quality degradation occurs according to the detection result, thereby improving the quality of the voice path.

The voice quality testing method of the embodiment, the first voice quality level information returned by the voice terminal that has established the call connection after performing the voice quality assessment test on the connected voice path, and the first voice quality level information is returned. The information is detected, and when it is detected that any of the received first voice quality level information is lower than the preset voice quality standard, the voice terminal that establishes the call connection further performs a loopback path between the core network element and the core network element. The voice quality assessment test returns the second voice quality level information that is tested, so that according to the second voice quality level information returned by each voice terminal, the specific node or path that causes the quality problem of the voice path can be known, and then The node or path of the quality problem can further optimize the voice path and improve the voice quality of the voice terminal.

FIG. 3 is a signaling diagram of a voice quality test method according to an embodiment of the present invention. In this embodiment, a voice quality test center instructs voice terminal A to initiate a call to voice terminal B, and voice terminal A and voice terminal B respectively The established voice path is tested for voice quality. The voice quality test center controls the voice terminal to initiate call and voice quality test, and the specific process of detecting and analyzing the cause of voice quality degradation based on the feedback voice quality level information is described. . As shown in Figure 3, this is The method of the embodiment specifically includes the following steps:

Step 300: The voice quality testing center sends a dialing test command to the voice terminal A.

In this embodiment, the call connection is initiated and established between the voice terminals, and the voice quality test process for the voice path is performed under the control of the voice quality test center. As a total control test center, in the embodiment of the present invention, the voice quality test center can correspond to multiple voice terminals used for voice quality testing in the communication system, and simultaneously perform centralized monitoring on the dialing process of multiple voice terminals. .

Specifically, in the voice quality testing center, according to the actual situation and the testing requirements of the corresponding multiple voice terminals, the sequence, time, and specific manner in which the voice terminals initiate call tests with each other can be pre-configured. Based on the pre-configured information, the voice quality test center can send a preset dialing command to the designated voice terminal at a time specified in the configuration information, thereby indicating the start of the test call. Further, when there are many voice paths to be tested, the voice quality test center can also perform voice to each voice terminal in an orderly manner by appropriately allocating the time and period of testing the voice paths in the configuration information. The voice quality test of the channel, when the voice terminal with voice quality test capability is deployed in the area to be tested according to the test requirements, based on the control of the voice quality test center, the voice communication system can be automated and large. Scaled voice service quality testing.

In this embodiment, the voice quality test center sends a dialing command to the voice terminal A according to the configuration information, instructing the voice terminal A to initiate a call to the voice terminal B, and performing voice quality testing on the established voice path as an example. The voice quality test method of the embodiment of the invention is described. Specifically, the dialing test command sent by the voice quality testing center may carry related indication information, such as call peer identification information, for instructing the voice terminal A to perform a call and perform a voice quality test operation. According to the call identity identification information, the voice terminal A can know the object that initiated the call and performs the voice quality test. Therefore, the corresponding operation can be performed under the instruction of the dialing instruction.

Further, in an actual application, the dialing command may further include other indication information related to establishing a call connection and performing a voice quality test, for example, the dialing command may further include a call connection hold duration information, and a call connection release mode. Information, etc. The call connection hold duration information is used to inform the voice terminal of the time required for the call connection to be maintained, that is, to inform the voice terminal when to end the call connection, to avoid waste of resources caused by excessive call time, and the actual setting The duration set in the dialing command will usually be greater than the total time required for the voice terminal to perform the voice quality test and the subsequent positioning procedure; and the call connection release mode information is used to inform the voice terminal when the call is terminated. The release mode of the voice resource used.

Therefore, if the dialing command carries the above two information, after the voice terminal that receives the dialing command establishes a call connection with the designated peer voice terminal, it also maintains the duration of the call connection according to the dialing command. The information and the call connection release mode information release the resources occupied by the call connection after the specified call connection duration, and the specific mode of the release is in the release mode specified in the dial test command.

It should be noted that, in the embodiment of the present invention, according to actual requirements, the dialing test command sent to the voice terminal may further include more information for instructing the voice terminal to perform related operations, thereby using the voice terminal. The call is better controlled by the process and the voice test process, and the embodiment of the present invention does not specifically limit this.

Step 301, the voice terminal A initiates a call to the voice terminal B according to the dialing command, and establishes a call connection;

After receiving the dialing test command sent by the voice quality testing center, the voice terminal A responds to the dialing test command, and sends the voice terminal B to the designated voice terminal B according to the identification information of the voice terminal B carried in the dialing test command. The test call is initiated and a call connection with the voice terminal B is established after the call is initiated. The call process is consistent with the existing voice call process, and is not described in the embodiment of the present invention.

Step 302: The voice terminal A sends the pre-stored test voice stream to the voice terminal B.

After the call connection between the two parties is established, the voice terminal A and the voice terminal B respectively perform voice quality evaluation tests on the voice paths established between the two, and respectively return the voice quality level information obtained by the respective tests to the voice quality. The test center performs test analysis. In the actual operation, the quality test of the voice path by the voice terminal A and the voice terminal B will be sequentially performed, and the sequence for performing the test is not limited in the embodiment of the present invention, and the sequence may be in the voice quality test center. It is specified in the dialing test command, or it can be randomly performed. The specific method flow of the voice terminal for voice quality assessment test can be carried out by referring to the existing PESQ method, that is, according to the objective MOS value evaluation test method.

Specifically, the voice terminal B first performs voice quality test on the voice path as an example. In order to achieve quality comparison between the original voice and the degraded voice transmitted through the voice path during the test to obtain the test result, the same test is pre-stored in both the voice terminal A and the voice terminal B before the voice quality test is performed. Voice stream. When the voice terminal B performs the voice quality test on the voice path, the voice terminal A first sends the pre-stored test voice stream to the voice terminal B through the established voice path. Since the voice path has a certain quality attenuation, it is transmitted to the voice path. The voice quality of the voice stream of the voice terminal B is usually lost.

Step 303: The voice terminal B compares the received test voice stream with the pre-stored test voice stream for voice quality;

After receiving the test voice stream sent by the voice terminal A through the voice path between the voice terminal B and the voice terminal A, the voice terminal B performs the voice quality comparison between the received test voice stream and the pre-stored test voice stream. Than. Since the test voice stream pre-stored by the voice terminal B is consistent with the original test voice stream sent by the voice terminal A, the voice quality comparison performed by the voice terminal B is substantially: the original test voice stream and the voice transmitted by the voice terminal A Voice quality comparison of a quality-degraded voice stream after transmission of the voice path. The voice quality comparison process is performed based on the PESQ protocol. In the embodiment of the present invention, the voice terminal B has the voice call capability of the voice terminal and the voice quality assessment test capability.

Specifically, the voice terminal B performs the PESQ evaluation calculation as the two inputs of the PESQ algorithm, and the waveform corresponding to the two input voice streams in the process of the PESQ evaluation calculation. In a detailed comparison, the first speech quality level information reflecting the speech quality status of the speech path will be obtained after the comprehensive analysis. The first voice quality level information includes a MOS value calculated by the PESQ evaluation that comprehensively reflects the voice quality status of the voice path.

Step 304: The voice terminal B reports the first voice quality level information obtained by the test to the voice quality testing center.

After the voice terminal B test obtains the first voice quality level information, the voice quality level information is reported to the voice quality test center for the voice quality test center to perform detection and analysis.

Step 305: The voice terminal B sends the pre-stored test voice stream to the voice terminal A.

Step 306, the voice terminal A compares the received test voice stream with the pre-stored test voice stream for voice quality;

Step 307, the voice terminal A reports the first voice quality level information obtained by the test to the voice quality testing center;

After the voice terminal B performs the voice quality evaluation test on the voice path, the voice terminal A is notified to perform the same voice quality evaluation test on the voice path. Specifically, voice terminal B will be tested After the first voice quality level information is reported to the voice quality testing center, the pre-stored test voice stream is sent to the voice terminal A through the voice path between the two in the same manner as the voice terminal A. After receiving the voice stream transmitted through the voice path, the voice terminal A also compares the received voice stream with the voice memory of the pre-stored test voice stream, so that the voice quality representing the voice path can also be tested. First voice quality level information. The voice terminal A sends the tested first voice quality level information to the voice quality testing center, and completes the voice quality testing process. Similarly, the first voice quality level information tested by the voice terminal A also includes the MOS value obtained by the test analysis and comprehensively reflecting the voice quality of the voice path between the voice terminal A and the voice terminal B.

It should be noted that the voice quality test performed by the voice terminal A and the voice terminal B respectively on the voice path between the two, and the first voice quality level information obtained substantially reflects the voice of the unique voice path between the two. quality. In the embodiment of the present invention, the voice quality testing center indicates that the two ends of the voice path respectively perform voice quality testing on the voice path, and the purpose of obtaining two first voice quality level information is: substantially, the voice terminal A detects The first voice quality level information reflects the voice stream transmission quality from the voice terminal B to the voice terminal A, and the first voice quality level information detected by the voice terminal B reflects the voice terminal A to the voice terminal B. Voice streaming quality, there is a difference between the two voice transmission qualities.

In practical applications, even in the same voice call, even if the voice stream sent by voice terminal A can be transmitted to voice terminal B with good transmission quality, it does not mean that the voice stream sent by voice terminal B can be very good. The transmission quality is transmitted to the voice terminal A. Therefore, the voice terminal performs two voice quality tests, and the voice quality test center judges whether the voice path has a quality problem based on the two test results, and can more accurately and comprehensively detect the quality degradation problem that may occur in the voice path.

Step 308, the voice quality testing center detects the language according to the received first voice quality level information. Voice quality of the audio path;

After receiving the first voice quality level information returned by the voice terminal A and the voice terminal B, the voice quality test center can detect the voice quality of the voice channel between the two voice terminals according to the first voice quality level information. Specifically, the voice quality testing center can detect, according to the size of the MOS value included in the first voice quality level information, and according to the preset MOS threshold, whether the voice quality of the voice path is lower than a preset voice quality standard. That is, whether the degradation of voice quality has occurred. When the voice quality test center detects that the voice quality status reflected by any of the first voice quality level information is lower than the preset voice quality standard, a voice quality problem occurs on the voice path between the voice terminal A and the voice terminal B. The quality testing center will control voice terminal A and voice terminal B to initiate a further voice quality testing process to detect the cause of the voice quality problem.

Step 309: If it is detected that any of the first voice quality level information is lower than the preset voice quality standard, the voice quality test center sends a loopback rule identifier corresponding to the voice terminal A and the voice terminal B to the core network element.

When the voice quality test center detects that the voice quality represented by any of the first voice quality level information is lower than the preset voice quality standard, the voice path between the voice terminal A and the voice terminal B has a voice quality problem. The voice quality testing center will respectively instruct the voice terminal A and the voice terminal B to initiate a voice quality assessment test for the loopback path between the core terminal A and the core network element. The loopback path refers to the loopback path after the voice stream is sent from the voice terminal to the core network element and back from the core network element to the voice terminal. The core network element can usually be the MGW device or MSC device of the core network.

Specifically, in the process of performing voice quality testing on the corresponding loopback path of the voice terminal, the core network element can receive the specified loopback rule when receiving the voice stream sent by the voice terminal. The voice stream is looped back and then returned to the voice terminal, so that the voice terminal performs voice quality test on different loopback paths with the core network element, and the voice quality test center performs voice terminal A and voice terminal B. Before the voice quality test of the corresponding loopback path, the loopback rule identifier corresponding to the voice terminal A and the voice terminal B respectively is sent to the core network element, and the loopback rule identifier is used to indicate the core. The network element performs loopback processing on the test voice stream sent by the voice terminal according to the specified loopback rule.

Specifically, the loopback processing performed by the core network element on the received voice stream generally includes two modes: The first type is that after the core network element receives the voice stream sent by the voice terminal from the first port, it does not go through itself. The internal port is transmitted, and the received voice stream is directly returned to the voice terminal at the first port. For the loopback processing method, the node involved in the loopback path only includes the voice terminal itself, and the core The transmission quality of the network element is irrelevant; the second loopback processing method is that after the core network element receives the voice stream sent by the voice terminal from the first port, the voice stream is returned from the first port to the second ring. The port is then returned to the voice terminal from the second port. For the loopback processing mode, the voice quality involved in the loopback path includes not only the voice terminal but also the core network element itself.

Therefore, in order to detect the quality problem of the voice path and the faulty node that causes the voice quality problem to the maximum extent and more accurately, the loopback rule configured by the voice quality test center for the core network element usually includes the above two Kind of rules. Specifically, in the embodiment of the present invention, the loopback rule corresponding to the first loopback processing mode is referred to as a first loopback rule, and the loopback rule corresponding to the second loopback processing manner is called For the second loopback rule.

After the voice quality test center sends the standard loopback rule identifier corresponding to the two loopback rules to the core network element, the core network element usually has a corresponding loopback processing method. The loopback detection table identified by the standard loopback rule, so the core network element is based on itself The loopback detection table is configured to identify the meaning of each loopback rule identifier sent by the voice quality test center, so that the core network element is sent by the voice terminal during the subsequent voice quality test of the loopback path. When the voice stream is tested, the voice loop can also be subjected to corresponding loopback processing according to the identified loopback rule.

For this step, it should be noted that, in the process of performing the voice quality test, in order to enable the voice stream receiving end to know the end of the received voice stream, an end flag is usually set at the end of the test voice stream, and the end is ended. The flag bit identifies the end of the voice stream, and when the receiving end recognizes the end flag bit, it will know that the voice stream sent by the sender has been received. Therefore, if the voice path is blocked or other abnormal phenomena cause the receiving end to fail to receive the end flag of the voice stream for a predetermined period of time, there is a quality problem on the voice path. Therefore, in this embodiment, after the voice terminal A has sent the test voice stream to the voice terminal B, and the voice terminal B has not received the end flag bit of the voice stream in the preset time, the voice terminal B The voice quality test center can directly inform the voice path of the fault, and the voice quality test center does not need to wait for the first voice quality level information returned by the voice terminal, and the first voice quality level information is detected, but can be directly performed. The fault location process in this step directly instructs the voice terminal A and the voice terminal B to detect the quality of the loopback path.

Step 310: The voice quality testing center sends the indication information to the voice terminal A, where the indication information is used to indicate that the voice terminal A performs the voice quality assessment test of the loopback path.

After the loopback rule identifier corresponding to each voice terminal is sent to the core network element, the voice quality test center instructs the voice terminal to initiate a voice quality test procedure for the corresponding loopback path. Specifically, the voice quality test center instructs the voice terminal to perform the voice quality test process on the voice path, and the voice quality test center instructs the voice terminal A and the voice terminal B to perform the measurement. The order of the trials may be performed at random, and is not specifically limited in the embodiment of the present invention. In this embodiment, the voice quality test center first instructs the voice terminal A to perform the loopback path voice quality test as an example, and describes the voice quality test process of the loopback path. In order to instruct the voice terminal A to start the voice quality test operation on the loopback path, the voice quality test center sends the indication information to the voice terminal A to instruct the voice terminal A to perform voice quality assessment on the loopback path between itself and the core network element. test.

Step 311: The voice terminal A sends the pre-stored test voice stream to the core network element.

Step 312: The core network element performs the loopback processing on the received test voice stream according to the loopback rule corresponding to the loopback rule identifier.

Step 313: The core network element returns the loopback processed test voice stream to the voice terminal A. The test voice stream is similar to the voice terminal A in performing voice quality detection on the voice path between the voice terminal B and the voice terminal. After receiving the indication information sent by the voice test center, the voice quality assessment and detection process of the loopback path between the voice terminal A and the core network element is also based on the PESQ protocol. Specifically, when the voice terminal A performs the voice quality test on the loopback path, the voice terminal A sends the pre-stored test voice stream to the core network element, and after receiving the test voice stream, the core network element receives the test voice stream according to the previously received The loopback rule identifier corresponding to the voice terminal A is looped back according to the loopback rule corresponding to each loopback rule identifier.

The loopback rule identifier sent by the voice quality test center includes at least an identifier corresponding to the first loopback rule that the voice network stream received by the core network element returns from the original receiving port, and the received voice stream is looped back to After the other port, the second loopback rule returned from the other port corresponds to the identifier, and accordingly, according to the two loopback rule identifiers, the core network element correspondingly receives the test voice from the voice terminal A. The flow performs these two loopback processes internally, and returns the looped voice stream in turn. Give voice terminal A. At the same time, in order to inform the voice terminal A of the loopback processing corresponding to the voice stream returned by the voice terminal A, the core network element carries the corresponding loopback rule identifier in the voice stream returned to the voice terminal A.

Step 314: The voice terminal A compares the received test voice stream with the pre-stored test voice stream.

Step 315, the voice terminal A reports the second voice quality level information obtained by the test to the voice quality testing center;

After receiving the voice stream carrying the loopback rule identifier, the voice terminal A compares the received voice stream with the pre-stored test voice stream, and the quality comparison process is performed based on the PESQ protocol, thereby obtaining a loopback rule, ie, The voice quality level information corresponding to the loopback path, and the voice quality level information reflects the voice quality status corresponding to different loopback processing and different loopback paths.

The voice terminal A reports the voice quality level information together with the corresponding loopback rule identifier, and reports the second voice quality level information to the voice quality testing center, where the second voice quality level information represents the voice terminal A and the core network. The voice quality status of the loopback path between the network elements, so that the voice quality test center can detect and analyze the voice quality of the loopback path corresponding to the voice terminal A, so that the voice terminal A and the voice terminal B can be known. The reason for the low voice quality. Specifically, the second voice quality level information includes at least two MOS value information respectively corresponding to the two loopback rules.

Step 316: The voice quality testing center sends the indication information to the voice terminal B, where the indication information is used to indicate that the voice terminal B performs the voice quality assessment test of the loopback path.

After the voice terminal A performs voice quality detection on the loopback path between itself and the core network element, the voice quality test center can instruct the voice terminal B to perform the same voice on the loopback path between itself and the core network element. Quality assessment test. Step 317: The voice terminal B sends the pre-stored test voice stream to the core network element.

Step 318: The core network element performs the loopback processing on the received test voice stream according to the loopback rule corresponding to the loopback rule identifier.

Step 319: The core network element returns the looped test voice stream to the voice terminal B. Step 320: The voice terminal B compares the received test voice stream with the pre-stored test voice stream.

Step 321, the voice terminal B reports the tested second voice quality level information to the voice quality testing center;

The voice terminal B performs the voice quality assessment test on the loopback path in the same manner as the voice terminal A test method, and sends the pre-stored test voice stream to the core network element to make the core network element follow the loopback rule. The corresponding loopback rule is identified, and the received voice stream is subjected to corresponding loopback processing, and the loopback processed voice stream is returned to the voice terminal B together with the corresponding loopback rule identifier. The voice terminal B compares the voice stream returned via the loopback path with the original test voice stream before transmission, and obtains voice quality level information corresponding to each loopback rule. The voice terminal B reports the voice quality level information together with the corresponding loopback rule identifier as the second voice quality level information to the voice quality test center for the voice quality test center to perform detection and analysis.

Step 322: The voice quality testing center detects, according to the received second voice quality level information, a fault node that causes the voice quality of the voice path to be lower than the voice quality standard.

The voice quality assessment test of the loopback path between the voice terminal A and the voice network terminal B is respectively performed by the voice terminal A and the voice terminal B, respectively, and the second voice quality level information returned by the two voice terminals respectively reflects: When two voice terminals separately carry the voice path between the core network and the voice network, whether the voice service also has quality problems. Preferably, by setting different loopback rules, The second voice quality level information can also reflect whether the voice quality problem occurring in the voice path between the voice terminals is related to the core network element itself, that is, the voice terminal does not cause the quality problem of the voice path, but the core network element. There is a problem with the transmission performance.

For example, if for any voice terminal, the voice quality level information corresponding to the loopback rule returned by the core network element from the original receiving port is not in the second voice quality level information returned by the voice terminal. Below the voice quality standard, the voice quality level information corresponding to the loopback rule that the core network element receives the voice stream after the internal port is self-looped and then returned to the voice terminal is lower than the voice quality standard, which represents For the voice terminal, at least the voice terminal itself does not have a problem of failure, but the core network element itself has a problem of failure.

Therefore, according to the voice quality test results returned by the voice terminal A and the voice terminal B respectively, the voice quality test center can specifically detect the cause of the voice quality degradation of the voice path between the two voice terminals, and the fault that causes the voice quality to degenerate. Node and path. Specifically, if the voice quality level information corresponding to the first loopback rule in any second voice quality level information is lower than the voice quality standard, the voice quality testing center determines that the voice terminal that sends the second voice quality level information is caused a faulty node of the voice quality problem, and if the voice quality level information corresponding to the first loopback rule in any second voice quality level information is not lower than the voice quality standard, but the voice quality level information corresponding to the second loopback rule However, when the voice quality standard is lower than the voice quality standard, the voice quality test center determines that the core network element is a fault node that has a voice quality problem.

Therefore, according to the detection and analysis, the voice quality testing center can know that the voice path has a single-node single-path problem, or there is a two-node dual-path problem. On this basis, the voice quality test center can optimize and improve the processing operation on the node or path that causes the voice quality degradation according to the detection result, or report the alarm or report the power supply network operation and maintenance personnel to the server. To further improve the voice quality of the voice terminal.

It should be noted that, in the embodiment of the present invention, the voice quality testing center may be embedded in the core network element in addition to an independent device in the communication network, and the voice quality testing center is set in the core network element. In the above step, the core network element carrying the voice quality test function is configured to correspond to the voice terminal A and the voice terminal B loopback rule identifier respectively, and the other steps are consistent with the foregoing embodiments. The benefits of setting up the core network element of the voice quality test center are as follows: reducing the number of telecommunication network nodes and the maintenance workload, saving the use of IP addresses and forwarding of IP packets, but it is necessary to carry out the existing telecommunication network equipment. The transformation and so on.

In addition, it should be noted that, for the PESQ voice quality testing method, the testing of the voice quality by the testing device (in the embodiment of the present invention) is nothing more than attenuation of the original voice stream after the transmission process. The waveform of the voice stream is compared according to various performance indicators, such as whether there is crosstalk, the magnitude of the gain change, whether there is noise, whether there is echo, the tail length of the echo, etc., and finally a comprehensive reflection is obtained. The MOS value of the voice quality condition, that is, the voice quality level information. Therefore, in the embodiment of the present invention, after the voice terminal performs voice quality test on the corresponding loopback path, the tested MOS value is fed back to the voice quality testing center, and the second voice level information is also available. The test results of various performance indicators tested by Lieutenant General are simultaneously fed back to the voice quality testing center. The voice quality test center can more accurately analyze the specific causes of voice quality problems in the voice path between voice terminals based on the test results of various performance indicators fed back by the voice terminal, so as to facilitate optimization and improvement operations.

It should be further noted that, in the embodiment of the present invention, in consideration of the quality of the voice service, it is required to obtain more information as much as possible, and the voice terminal can be deployed in each base station cell as much as possible, or the attention of the telecommunication operator. Hotspot area. For example, the voice terminal for testing can be placed at the base station control. Base Station Controller (BSC) / Radio Network Controller (RNC) room; or placed in hotspots, such as competition venues, commercial centers; can also be placed on mobile carriers, such as buses, rental Car and so on.

At the same time, considering that the voice quality test center needs to communicate with the core network element of the telecommunication system, the voice quality test center can be deployed in the same network as the core network element, and the core network element needs to be opened. The related interface is provided for the voice quality test center to access the core network element and perform related control operations.

Secondly, since the voice terminal and the voice quality test center need information such as interactive dialing command and voice quality level information, and since the voice terminal has the voice call function of the ordinary voice terminal, it can also be opened as much as possible in the voice quality test center. Similar to the function of SMS Center, General Packet Radio Service (GPRS) or Unstructured Supplementary Service Data (USSD) service center for voice terminal and voice quality test center Implement message interaction.

The voice quality testing method of the embodiment, the first voice quality level information returned by the voice terminal that has established the call connection after performing the voice quality assessment test on the connected voice path, and the first voice quality level information is returned. The information is detected, and when it is detected that any of the received first voice quality level information is lower than the preset voice quality standard, the voice terminal that establishes the call connection further performs a loopback path between the core network element and the core network element. The voice quality assessment test returns the second voice quality level information that is tested, so that according to the second voice quality level information returned by each voice terminal, the specific node or path that causes the quality problem of the voice path can be known, and then The node or path of the quality problem can further optimize the voice path and improve the voice quality of the voice terminal. Further, in the embodiment, the voice quality testing center can automatically control the voice communication system by controlling the voice quality testing center based on the pre-configured process of establishing a call connection between the voice terminals and initiating a voice quality test. Large-scale voice service quality testing function.

Further, in this embodiment, when the quality degradation problem of the voice terminal is detected in the voice quality testing center, the standard loopback rule identifier is sent to the core network element to indicate that the core network element receives the network. The obtained voice stream is subjected to corresponding loopback processing, so that the second voice quality level information fed back by the voice terminal can also reflect whether the voice quality problem occurring in the voice path is related to the core network element itself, thereby enabling more accurate detection. A faulty node that causes problems with the voice quality of the voice path.

A person skilled in the art can understand that all or part of the steps of implementing the above method embodiments may be completed by using hardware related to program instructions, and the foregoing program may be stored in a computer readable storage medium, and the program is executed when executed. The foregoing steps include the steps of the foregoing method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

4 is a schematic structural diagram of a voice quality testing center according to an embodiment of the present invention. As shown in FIG. 4, the voice quality testing center of the embodiment includes: a first receiving module 11, a test indicating module 12, and a second receiving module. 13 and determination module 14.

The first receiving module 11 is configured to receive the first voice quality level information returned by the voice terminal that establishes the call connection after performing voice quality assessment tests on the voice path that carries the call connection.

The test indication module 12 is configured to: when detecting that any of the first voice quality level information received by the first receiving module 11 is lower than a preset voice quality standard, instructing the voice terminal to respectively perform a loopback path between itself and the core network element Conduct a voice quality assessment test; The second receiving module 13 is configured to receive second voice quality level information that the voice terminal returns after performing voice quality assessment tests on the loopback path of the core network element and the core network element respectively.

The determining module 14 is configured to determine, according to the second voice quality level information received by the second receiving module 13, a faulty node that causes the voice quality of the voice path to be lower than a preset voice quality standard.

Specifically, in this embodiment, all the functional modules involved in the voice quality testing center and the specific working processes involved therein may refer to the related content disclosed in the embodiments related to the voice quality testing method, and Let me repeat.

The voice quality testing center of the embodiment, after receiving the voice quality assessment test of the connected voice path by the voice terminal that has established the call connection, and returning the first voice quality level information, the first voice quality level information Performing detection, and when detecting that any of the received first voice quality level information is lower than a preset voice quality standard, indicating that the voice terminal establishing the call connection performs further voice on the loopback path between the core network element and the core network element respectively Quality assessment test, and returning the second voice quality level information tested by each, so that according to the second voice quality level information returned by each voice terminal, the specific node or path causing the quality problem of the voice path can be known, and then the quality is generated. The problem node or path can further optimize the voice path and improve the voice quality of the voice terminal.

FIG. 5 is a schematic structural diagram of another voice quality testing center according to an embodiment of the present invention. As shown in FIG. 5, based on the technical solution of the previous embodiment, the voice quality testing center of the embodiment further includes an identifier. Send module 15. The identifier sending module 15 is configured to send a loopback rule corresponding to the voice terminal to the core network element before the test indicating module 12 instructs the voice terminal to perform a voice quality assessment test on the loopback path between itself and the core network element. The ringback rule identifier is used to indicate that the core network element receives the test voice stream sent by the voice terminal according to the ring corresponding to the loopback rule identifier. The return rule performs corresponding loopback processing on the test voice stream and returns to the voice terminal. The loopback rule identifier sent by the identifier sending module 15 includes at least a first loopback rule identifier for instructing the core network element to return the received test voice stream from the original receiving port to the voice terminal, and is used to indicate the core. After the network NE returns the received test voice stream from the original receiving port to another port, the network loop returns the second loopback rule identifier from the other port to the voice terminal.

Correspondingly, in this embodiment, the determining module 14 is specifically configured to detect the following two situations: if the determining module 14 detects any of the received second voice quality level information corresponding to the first loopback rule identifier When the voice quality level information is lower than the preset voice quality standard, determining that the voice terminal that sends the second voice quality level information is a fault node that causes the voice quality of the voice path to be lower than a preset voice quality standard;

If the determining module 14 detects that the voice quality level information corresponding to the first loopback rule identifier in any of the received second voice quality level information is not lower than the preset voice quality standard, but the second loopback rule identifier is When the corresponding voice quality level information is lower than the preset voice quality standard, the core network element is determined to be a fault node that causes the voice quality of the voice path to be lower than the preset voice quality standard.

Further, in this embodiment, the voice quality testing center may further include a dialing instruction sending module 16. The dialing command sending module 16 is configured to send a dialing test command to any voice terminal before the first receiving module 11 receives the first voice quality level information, where the dialing command carries the call peer identification information, and the dialing command The voice terminal for instructing to receive the dialing command initiates a call connection to the voice terminal corresponding to the call peer identification information, and after establishing the call connection, performs voice quality assessment test on the voice path carrying the call connection.

All the functional modules involved in the voice quality testing center of the embodiment, and the specific working processes involved in the voice quality testing center may also refer to the embodiments of the voice quality testing method. The relevant content of the disclosure is not repeated here.

Further, in the embodiment, the voice quality testing center can automatically control the voice communication system by controlling the voice quality testing center based on the pre-configured process of establishing a call connection between the voice terminals and initiating a voice quality test. Large-scale voice service quality testing function.

Further, in this embodiment, when the quality degradation problem of the voice terminal is detected in the voice quality testing center, the standard loopback rule identifier is sent to the core network element to indicate that the core network element receives the network. The obtained voice stream is subjected to corresponding loopback processing, so that the second voice quality level information fed back by the voice terminal can also reflect whether the voice quality problem occurring in the voice path is related to the core network element itself, thereby enabling more accurate detection. A faulty node that causes problems with the voice quality of the voice path. FIG. 6 is a schematic structural diagram of a voice terminal according to an embodiment of the present invention. As shown in FIG. 6, the voice terminal of this embodiment includes a first test module 21, an indication information receiving module 22, a second test module 23, and an information sending module 24.

The first test module 21 is configured to perform voice quality assessment on a voice path in which the voice terminal is located. Testing, and transmitting the first voice quality level information obtained by the test to the corresponding voice quality testing center;

The indication information receiving module 22 is configured to receive indication information returned by the voice quality testing center for indicating a voice quality assessment test on the loopback path between the core network element and the core network element, where the indication information is detected by the voice quality testing center. The first voice quality level information is sent after being lower than the preset voice quality standard;

The second test module 23 is configured to perform a voice quality assessment test on the loopback path between itself and the core network element according to the indication information received by the indication information receiving module 22, to generate second voice quality level information;

The information sending module 24 is configured to send the second voice quality level information generated by the second testing module 23 to the voice quality testing center, so that the voice quality testing center determines the voice that causes the voice path according to the received second voice quality level information. A faulty node with a quality lower than the preset voice quality standard.

For example, all the functional modules involved in the voice terminal of the present embodiment, and the specific working processes involved in the voice terminal, may refer to the related content disclosed in the embodiment of the voice quality testing method, and details are not described herein.

The voice terminal of the embodiment returns the first voice quality level information generated by the test to the voice quality test center after performing the voice quality evaluation test on the voice path, and detects the first detected voice quality test center. When the voice quality level information is lower than the preset voice quality standard, the voice quality evaluation test is performed on the loopback path between the core network element and the core network element, and the tested second voice quality level is returned again. The information is sent to the voice quality testing center, so that the voice quality testing center can know the specific node or path that causes the quality problem of the voice path according to the returned second voice quality level information, and then the node for the quality problem occurs. Or the path can further optimize and improve the voice path, and improve the voice quality of the voice terminal. FIG. 7 is a schematic structural diagram of another voice terminal according to an embodiment of the present invention. As shown in FIG. 7, on the basis of the voice terminal of the previous embodiment, in the voice terminal of the embodiment, the second test module 23 may specifically include: a voice stream sending submodule 231, a voice stream receiving submodule 232, and information. A submodule 233 is generated.

The voice stream sending sub-module 231 is configured to send the pre-stored test voice stream to the core network element. The voice stream receiving sub-module 232 is configured to receive the core network element according to the loopback rule identifier obtained from the voice quality testing center. The loopback rule, after the loopback processing of the test voice stream, returns the looped back test voice stream, and the loopback rule identifier includes at least the test voice stream that the core network element receives the test voice stream from the original Receiving, by the receiving port, the first loopback rule identifier returned to the voice terminal, and instructing the core network element to return the received test voice stream from the original receiving port to another port, and returning from the other port to the second terminal of the voice terminal Loopback rule identifier;

The information generation sub-module 233 is configured to compare the voice quality of the looped test voice stream with the pre-stored test voice stream to generate second voice quality level information, where the second voice quality level information includes at least a first The loopback rule identifier and the second loopback rule identifier correspond to voice quality level information.

Further, in this embodiment, the voice terminal may further include an identifier information receiving module 25 and a call connection establishing module 26. The identifier information receiving module 25 is configured to receive a dialing test command sent by the voice quality testing center before the first test module 21 performs a voice quality assessment test on the voice path, where the dialing command carries the call peer identification information; The connection establishing module 26 is configured to initiate a call connection to the voice terminal corresponding to the call peer identification information, and establish a call connection between the voice terminals corresponding to the call peer identification information. For example, all the functional modules involved in the voice terminal of the embodiment, and the specific working processes involved in the voice terminal, may also refer to the related content disclosed in the embodiment of the voice quality testing method, and details are not described herein again.

The voice terminal of the embodiment returns the first voice quality level information generated by the test to the voice quality testing center after performing the voice quality assessment test on the voice path, and detects the first in the received voice quality testing center. When the voice quality level information is lower than the preset voice quality standard, the voice quality evaluation test is performed on the loopback path between the core network element and the core network element, and the tested second voice quality level information is returned again. The voice quality testing center is configured to enable the voice quality testing center to know the specific node or path that causes the quality problem of the voice path according to the returned second voice quality level information, and then the voice or the path to the node or path where the quality problem occurs The channel is further optimized and improved to improve the voice quality of the voice terminal.

FIG. 8 is a schematic structural diagram of a voice quality testing system according to an embodiment of the present invention. As shown in FIG. 8, the voice quality testing system of this embodiment includes the foregoing voice quality testing center. Two of the above-described voice terminals 2 (only two are shown), and a core network element 3. The voice quality testing center 1 is connected to the voice terminal 2 and the core network element 3, respectively, and the voice terminal 2 is connected to the core network element 3.

Specifically, the core network element 3 in this embodiment may be an MGW device or an MSC device in the core network. The voice quality test center 1 can be set as a separate device in the communication network, and can also be embedded in the core network element 3. Specifically, all the functional modules involved in the voice quality testing center 1 and the voice terminal 2 of the embodiment, and the specific working processes involved in the voice quality testing center 1 and the voice terminal 2 may refer to the related content disclosed in the embodiment of the voice quality testing method. , will not repeat them here.

The voice quality testing system of this embodiment, by receiving the voice quality assessment test of the connected voice path after receiving the voice connection with the call connection established, and returning the first voice quality level information, the first voice quality level The information is detected, and when it is detected that any of the received first voice quality level information is lower than the preset voice quality standard, the voice terminal that establishes the call connection further performs a loopback path between the core network element and the core network element. The voice quality assessment test returns the second voice quality level information that is tested, so that according to the second voice quality level information returned by each voice terminal, the specific node or path that causes the quality problem of the voice path can be known, and then The node or path of the quality problem can further optimize the voice path and improve the voice quality of the voice terminal.

It should be noted that the above embodiments are only for explaining the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: The technical solutions described in the foregoing embodiments are modified, or the equivalents of the technical features are replaced by the same. However, the modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

Rights request

A method for testing voice quality, characterized in that it comprises:

Receiving, by the voice terminal establishing the call connection, the first voice quality level information respectively returned after performing voice quality assessment tests on the voice path carrying the call connection;

Receiving, by the voice terminal, the second voice quality level information respectively returned after performing voice quality assessment tests on the loopback path of the core network element and the core network element;

And determining, according to the received second voice quality level information, a faulty node that causes the voice quality of the voice path to be lower than the preset voice quality standard.

The method for testing a voice quality according to claim 1, wherein the method further comprises: before the voice terminal is instructed to perform a voice quality assessment test on a loopback path between itself and a core network element, Includes:

Sending, to the core network element, a loopback rule identifier corresponding to the voice terminal, where the loopback rule identifier is used to indicate that the core network element receives the test voice stream sent by the voice terminal, Performing a loopback process on the test voice stream according to the loopback rule corresponding to the loopback rule identifier, and returning to the voice terminal;

The loopback rule identifier includes at least a first loopback rule identifier and a second loopback rule identifier, where the first loopback rule identifier is used to indicate the test voice stream that the core network element will receive. Returning from the original receiving port to the voice terminal, the second loopback rule identifier is used to instruct the core network element to loop back the received test voice stream from the original receiving port to another port. Said Another port is returned to the voice terminal.

The method for testing voice quality according to claim 2, wherein the determining, according to the received second voice quality level information, that the voice quality of the voice path is lower than the preset The fault nodes of the voice quality standard specifically include:

If it is detected that the voice quality level information corresponding to the first loopback rule identifier in the second voice quality level information is lower than the preset voice quality standard, determining that the voice is lower than the preset voice The voice terminal corresponding to the second voice quality level information of the quality standard is a fault node that causes the voice quality of the voice path to be lower than the preset voice quality standard;

If the voice quality level information corresponding to the first loopback rule identifier in the second voice quality level information is not lower than the preset voice quality standard, but the second loopback rule is detected When the corresponding voice quality level information is lower than the preset voice quality standard, the core network element is determined to be a fault node that causes the voice quality of the voice path to be lower than the preset voice quality standard.

The voice quality testing method according to any one of claims 1 to 3, wherein the voice terminal receiving the call connection connection performs a voice quality evaluation test on the voice path carrying the call connection, Before the first voice quality level information returned, the method further includes:

Sending a dialing command to any of the voice terminals, where the dialing command carries the call peer identification information, where the dialing command is used to indicate that the voice terminal that receives the dialing command is directed to the opposite end of the call The voice terminal corresponding to the identification information initiates a call connection, and after establishing the call connection, performs voice quality assessment test on the voice path carrying the call connection.

5. A method for testing voice quality, characterized in that it comprises: Performing a voice quality assessment test on the voice path, and transmitting the first voice quality level information obtained by the test to the corresponding voice quality test center;

The voice quality testing method according to claim 5, wherein the performing the voice quality assessment test on the loopback path, the generating the second voice quality level information specifically includes: to the core network element Send a pre-stored test voice stream;

After receiving the loopback rule corresponding to the loopback rule identifier obtained from the voice quality test center, and performing loopback processing on the test voice stream, the loopback processing is performed after the loopback processing is performed. a test voice stream, the loopback rule identifier includes at least a first loopback rule identifier and a second loopback rule identifier, where the first loopback rule identifier is used to indicate that the core network element is to receive The test voice stream is returned from the original receiving port to the voice terminal, and the second loopback rule identifier is used to instruct the core network element to loop back the received test voice stream from the original receiving port to another After a port, returning from the other port to the voice terminal;

Comparing the voice quality of the looped test voice with the pre-stored test voice stream to generate the second voice quality level information, where the second voice quality level information includes at least the first ring The return rule identifier and the second loopback rule identifier correspond to voice quality level information.

The method for testing the voice quality according to claim 5 or 6, wherein before the performing the voice quality assessment test on the voice path, the method further includes:

Receiving a dialing test command sent by the voice quality testing center, where the dialing test command carries caller end identification information;

And making a call connection to the voice terminal corresponding to the call peer identification information, and establishing a call connection between the voice terminals corresponding to the call peer identification information.

8. A voice quality testing center, characterized in that:

a first receiving module, configured to receive, by the voice terminal that establishes the call connection, the first voice quality level information respectively returned after performing voice quality assessment tests on the voice path that carries the call connection;

a second receiving module, configured to receive second voice quality level information that is returned by the voice terminal after performing voice quality assessment tests on the loopback path of the core network element and the core network element respectively; The second voice quality level information received by the second receiving module determines a fault node that causes the voice quality of the voice path to be lower than the preset voice quality standard.

The voice quality testing center according to claim 8, further comprising: an identifier sending module, configured to: in the test indication module, instruct the voice terminal to respectively loopback between itself and the core network element Before the voice quality assessment test is performed, the loopback rule identifier corresponding to the voice terminal is sent to the core network element, where the loopback rule identifier is used to indicate the core When receiving the test voice stream sent by the voice terminal, the network network element performs corresponding loopback processing on the test voice stream according to the loopback rule corresponding to the loopback rule identifier, and returns the Voice terminal

The loopback rule identifier includes at least a first loopback rule identifier and a second loopback rule identifier, where the first loopback rule identifier is used to indicate the test voice stream that the core network element will receive. Returning from the original receiving port to the voice terminal, the second loopback rule identifier is used to instruct the core network element to loop back the received test voice stream from the original receiving port to another port. The other port is returned to the voice terminal.

The voice quality testing center according to claim 9, wherein the determining module is specifically configured to:

The voice quality testing center according to any one of claims 8 to 10, further comprising:

a dialing command sending module, configured to receive the first voice quality level at the first receiving module Before the information, the dialing command is sent to any of the voice terminals, where the dialing command carries the call peer identification information, where the dialing command is used to indicate that the voice terminal that receives the dialing command is The voice terminal corresponding to the caller identification information initiates a call connection, and after establishing the call connection, performs voice quality assessment test on the voice path carrying the call connection.

12. A voice terminal, comprising:

An information sending module, configured to send the second voice quality level information to the voice quality testing center, so that the voice quality testing center determines, according to the second voice quality level information, a voice that causes the voice path A faulty node of lower quality than the preset voice quality standard.

The voice terminal according to claim 12, wherein the second test module specifically includes:

a voice stream sending sub-module, configured to send a pre-stored test voice stream to the core network element; a voice stream receiving sub-module, configured to receive the core network element according to a ring obtained from the voice quality testing center The loopback rule corresponding to the loopback rule and the loopback processing corresponding to the test voice stream, and the loopback processed test voice stream returned, the loopback rule identifier includes at least the first a loopback rule identifier and a second loopback rule identifier, where the first loopback rule identifier is used to instruct the core network element to return the received test voice stream from the original receiving port to the voice And the second loopback rule identifier is used to indicate that the core network element returns the received test voice stream from the original receiving port to another port, and returns the a voice generation sub-module, configured to compare the looped processed test voice stream with a pre-stored test voice stream to generate the second voice quality level information, where the second voice quality level is generated The information includes at least voice quality level information corresponding to the first loopback rule identifier and the second loopback rule identifier respectively.

The voice terminal according to claim 12 or 13, further comprising: an identifier information receiving module, configured to receive the voice quality assessment test before the first test module performs the voice quality assessment test on the voice path a dialing test command sent by the voice quality test center, where the dialing test command carries the call peer identification information; the call connection establishing module is configured to initiate a call connection to the voice terminal corresponding to the call peer identification information, and establish and Calling the call connection between the voice terminals corresponding to the peer identification information.

A voice quality testing system, comprising: the voice quality testing center according to any one of claims 8 to 11, at least two according to the claims

The voice terminal of any of 12 to 14 and the core network element; wherein