KR20040022849A - Mobile quality test system using pda - Google Patents

Abstract

PURPOSE: An MQTS(Mobile Quality Test System) using a PDA(Personal Digital Assistant) is provided to efficiently test the voice quality and frequency environment of a mobile communication system by the PDA. CONSTITUTION: If a test is requested from a PDA(540), an MQTS server(100) authenticates the PDA(540), stores information of the PDA(540), and performs the statistics process of the voice test result. An MQTS client(200) processes calls between the PDA(540) and a BSM(Base Station Manager), connects to the MQTS server(100) through a TCP/IP(Transmission Control Protocol/Internet Protocol) network(300), and transmits the voice test result to the MQTS server(100).

Description

Mobile communication environment measurement system using PCA {MOBILE QUALITY TEST SYSTEM USING PDA}

The present invention relates to a mobile communication environment measurement system (MOBILE QUALITY TEST SYSTEM), in particular to measure the voice quality of the mobile communication system using a mobile personal digital assistant (hereinafter referred to as 'PDA') easy to move At the same time, the present invention relates to a mobile communication environment measurement system using a PDA equipped to efficiently test a frequency environment according to a region.

The present invention performs wireless communication through a TCP / IP network for transmitting and receiving a message between a sound quality measuring device and a device under test, that is, a mobile station. However, in detail, each channel performs communication using three channels. . One channel can be viewed as a TCP / IP network, the other as a call processing channel, and the other channel as a voice channel.

The TCP / IP network functions as a communication channel for transmitting and receiving data in order to test voice quality, and the call processing channel is for establishing a communication path and is in charge of call processing in connection with an exchange. On the other hand, the voice channel functions to enable direct call between subscribers when a call is established through the call processing channel.

As described above, according to the present invention, the voice quality can be tested by transmitting and receiving all messages of the mobile terminal established with a call through the TCP / IP network.

On the other hand, in recent years, a number of devices for testing the voice quality of the mobile communication system has been developed to provide a mobile service with a higher call quality than the prior art, but such a conventional sound quality measuring device is to perform a voice test by controlling a simple measurement device and a computer However, there is a problem in that the configuration of the system is complicated and it is inconvenient to use in the field that requires movement.

Accordingly, the present invention has been made to solve the above-mentioned problems, to provide a mobile communication environmental measurement system that can efficiently test the voice quality and frequency environment of the mobile communication system using a mobile PDA easy to achieve the object. There is this.

Another object of the present invention is to provide a PDA equipped with an operation program to test the voice quality and frequency environment of the mobile communication system.

1 is a configuration diagram of a network connection of a mobile communication environmental measurement system according to the present invention;

2 is an internal block diagram of a mobile communication environmental measurement system according to the present invention;

3 is an embodiment to which the mobile communication environmental measurement system of the present invention is applied;

4 is a flowchart illustrating a procedure for test measurement of a mobile communication system according to the present invention.

** Description of Detailed Description of Major Parts of Drawings **

100; environmental measurement server 120; system information register

130; DB140; Central Testing and Control Department

150; Statistics 200; Environmental measurement client

220; state management unit 230; voice test management unit

300; TCP / IP network 400; switching system

540; Mobile Bureau 542; GUI Management Department

546; call processing unit 548; display unit

110, 210, 544; communication module unit

In the mobile communication environment measurement system of the present invention for solving the above-mentioned problems, a system for measuring the voice quality between the mobile station and the mobile station and the operating station connected to the base station in the mobile communication system to perform communication, the mobile station Is configured as a terminal equipped with an operating program therein, and when there is a test request of the mobile station, grants a test certificate, stores the information of the mobile station, and performs a statistical processing of the results of the voice test according to the stored mobile station information. A measurement server; And an environmental measurement client in charge of call processing between the mobile station and the operating station and connected to the environmental measurement server through a TCP / IP network to transmit the results of the voice test to the environmental measurement server.

In this case, the mobile station preferably uses a PDA equipped with an operation program according to the present invention.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention;

First of all, the PDA is a portable computer, which is a small computer with a calculation function, information storage and retrieval function. It is small and light, so it is convenient to carry, and since it uses a stylus pen and a touch LCD, it is easy to input or search for various information. In recent years, it has been in the spotlight as a device capable of utilizing all the functions of the wireless Internet in combination with mobile telephone or pager systems.

Next, the PESQ algorithm used in the present invention, PESQ is an abbreviation of Perceptual Evaluation Speech Quality, and was developed for measuring sound quality by comparing voices of both ends on a real network such as VOIP, POTS, ISDN, and GSM. Competed in 2001 and adopted as a recommendation, now an official recommendation of ITU-T, this algorithm outperforms all currently known algorithms such as PSQM, PSQM +, PAMS, MNB, and TOSQA.

1 is a diagram illustrating a network connection of a mobile communication environmental measurement system according to the present invention, and FIG. 2 is a block diagram illustrating an internal configuration of a mobile communication environmental measurement system according to the present invention.

1, a mobile communication environmental measurement system according to the present invention is a mobile communication environmental measurement (MQTS) server 100, a mobile communication environmental measurement (MQTS) client 200, TCP / IP network (installed in an exchange station) 300, and a mobile station (MS) 540 of a base station, which is a target device for testing voice quality.

Here, the mobile communication environment measurement server (MQTS SERVER) 100 grasps and manages the status of the mobile station 540 and the client 200 in real time through the TCP / IP network 300, and manages an operation message from the switching system 400. And the operator transmits the necessary data to the mobile station 540. In addition, the voice test result value received from the client 200 may be statistically processed, or in some cases, the voice quality may be tested through an algorithm for measuring the voice quality.

The mobile communication environment measurement client (MQTS CLIENT) 200 manages the status of the fixed subscriber line such as matching the fixed subscriber line (FIXLINE) from the switching system 400, that is, the local call processing (LOCAL CALL PROCESSING). It is in charge of call processing of liver (M2L). In addition, when a call is established, a voice test is performed through the TCP / IP network 300 while transmitting and receiving the reference voice stored therein, and a result value or information data is transmitted to the server 100.

The mobile station (MS) 540 of the base station may transmit an operation message to a target device for testing voice quality and use a mobile terminal or a PDA equipped with an operation program. At this time, the equipped PDA performs M2M call processing with the internal operation program, and when the call is established, the voice quality can be measured from the results of each voice test through the PESQ algorithm based on the specific voice stored therein. To provide. On the other hand, if the call attempt fails (FAIL) it notifies the server 100 and receives and displays an error cause message, that is, F3000 message. In addition, a function for analyzing data related to DM is also mounted.

Therefore, after the terminal of the mobile station 540 having an operation program installed therein attempts to connect to the server 100 and is authenticated for use, the mobile station 540 attempts call processing between remote (M2M) or remote-operating stations (M2L). Once established, the mobile communication environment measurement server 100 requests a test and transmits the terminal status and information of the mobile station 540. Then, the server 100 registers the information of the transmitted mobile station 540 and starts the voice test by checking the status of the mobile station 540 and the environmental measurement client 200. At this time, the client 200 establishes a view of the remote-operating station (M2L) and transmits the received data and the results of the voice test to the server 100 when the call is received, and the server 100 or the mobile station 540 respectively. The voice quality is judged by extracting the PESQ value from the test result. Each voice test result performed in this way is statistically processed by the environmental measurement server 100 and then displayed by transmitting the call to the terminal which transmitted the call.

That is, according to the present invention, it is possible to test voice quality through various paths between M2M or M2L, and furthermore, it is possible to test the frequency environment of the region by DM data analysis.

2, the environmental measurement system according to the present invention will be described in more detail. It is preferable to divide the system of the present invention into an environmental measurement server 100, an environmental measurement client 200, and a mobile station 540. . At this time, the client 200 and the mobile station 540 each have a reference voice signal stored therein, and the server 100 and the client 200 and the mobile station 540 communicate with each other through a TCP / IP network for test measurement. This is done.

1. Mobile communication environment measurement server (MQTS SERVER)

Environmental measurement server 100 according to the present invention is a communication module 110 for communicating over a TCP / IP network, and the system information registration unit 120 to grant the use authentication to the test mobile station 540 and register the information data And a DB 130, a central test manager 140 that oversees all tests, and a statistics unit 150 that statistically processes the call processing status and the results of the voice test.

Here, the communication module unit 110 is a medium for smoothly transmitting and receiving information about the system and the information of the mobile station 540 to be tested through the TCP / IP network.

Since the system information registration unit 120 requires a login process of the application (APPLICATION) itself in addition to a login password such as a BSM, in order to transmit and receive a message, the user information is transmitted to the corresponding mobile station 540 received a test request from the communication module unit 110. Then, the registration information of the mobile station 540 is stored through login.

The central test manager 140 collectively manages all the test processes through the DB 130, and may perform a voice test by mounting an algorithm, ie, a PESQ algorithm, to test voice quality according to a user's discretion.

The statistical unit 150 receives the result of each test from the mobile communication environment measurement client 200 and produces statistical data based on the information of the mobile station 540 registered in the system information registration unit 120.

The data of each module unit 110, 120, 140, 150 is collectively stored in the DB 130 to be controlled or transmitted by the central test management unit 140, and moreover, like a mobile station 540, a simple GUI for statistical data search and device management is introduced. It is possible to make it possible to measure the voice quality by the user.

Accordingly, the server 100 of the present invention provides an MS registration and management function, a test performance management function, a statistical function, and a voice quality test function through a voice quality algorithm.

2. Mobile communication environment measurement client (MQTS CLIENT)

Environmental measurement client 200 according to the present invention is a communication module 210 for communicating over a TCP / IP network, and the state management unit 220 for managing the status and matching, call processing, etc. of the fixed subscriber line (FIXLINES) , And a voice test processor 230 for storing a result value of each voice test.

The communication module unit 210 communicates with the environmental measurement server 100 and the mobile station 540 through a TCP / IP network, and receives a call from the mobile station 540. The result data of each test is sent to the server 100. The voice test processor 230 continuously transmits data to the server 100 by continuously storing the result of the voice test between the remote-operating stations (M2L). On the other hand, the state management unit 220 manages the call processing of the remote-operating station (M2L) by matching the fixed subscriber line (FIXLINES) from the exchange system to manage the state of the fixed subscriber line (FIXLINES).

When a call processing error or the like of the mobile station 540 registered in the client 200 occurs with this function, information is provided to the mobile station 540 through the mobile station 540 connected to the client 540, that is, the PDA terminal.

Accordingly, the client 200 of the present invention functions to store and transmit voice test result data between a local call processing function and a remote-operating station (M2L).

3. Mobile station composed of PDA

Mobile station 540 according to the present invention is a PDA terminal equipped with a reference voice signal and an operation program therein, the GUI management unit 542 that the user inputs arbitrarily or the operation program for the voice test and frequency environment test is mounted, and TCP Communication module 544 for communicating over the IP / IP network, a call processing unit 546 responsible for call processing between the remote (M2M) or remote-operating stations (M2L), and the result value or call processing of each voice test. It consists of a display unit 548 for displaying the status and MMI information of the exchange system to the user.

In this case, the communication module unit 544 is for smooth communication through the TCP / IP network as described above, and transmits the call / incoming state to the server 100 through the communication module unit 544 and performs the voice test. Results and statistical data can be called and received from the server 100.

The GUI management unit 542 includes an input unit that can be arbitrarily set by the user, a PESQ algorithm, and a DM data analysis algorithm to test voice quality, and to transmit and analyze DM data between a base station and a terminal to test a frequency environment of a corresponding region. can do.

The call processing unit 546 manages the call state by performing an incoming / outgoing call between the remote (M2M) or the remote-operating station (M2L) through the mounted operating program. When a call attempt is established and a call is connected, a voice test is requested, and when the call attempt fails, the environmental measurement server 100 is notified of this and receives an error cause message, that is, an F3000 message. During call processing, a negative test may be made, and only simple calls may be connected or other tests may be made.

Each mobile station 540-1, 540-2, ..., 540-n configured as described above, i.e., a terminal or a PDA connects a call path to a remote peer (M2M), but does not connect to a remote peer (M2M) while performing a voice test. Rather than performing data communication, the environmental measurement server 100 performs TCP / IP communication. Therefore, the mobile station 540 not connected to the environmental measurement server 100 is excluded from the test subject. Accordingly, the voice test can be performed through various paths between the remote M2M or the remote-operating station M2L, and the mobile station that transmits the call from any mobile station 540 by the remote M2M communication. Various data may be transmitted to 540.

Therefore, the mobile station 540 composed of the PDA of the present invention performs a call processing function, a voice quality measurement function, a frequency environment test function according to a region, a display function, and the like.

As described above, all the processors in the test are managed by the central environmental measurement server 100, which means that each environmental measurement client 200 installed in the exchange office sends information on voice test or call processing status information to the communication module. It is possible by transmitting to the server 100 through the unit (210). Then, all system messages stored in the DB 130 are statistically processed or transferred to the mobile station 540 through the communication module unit 544 of the communication module unit 110 of the server 100 and the mobile station 540 and the GUI management unit. Controlled and displayed at 542, all of which may be manipulated arbitrarily in response to a user input.

On the other hand, a voice test may be performed during call processing and simply a call may be connected or another test may be performed. It may also fail while attempting a call, or may not be able to receive a call. All of these call processing states are managed by the call processing unit 546 of the mobile station 540, and are transmitted to the system information registration unit 120 of the environmental measurement server 100 to become data for producing statistical data.

Next, referring to FIG. 3 and FIG. 4, an embodiment in which the above-described environmental measurement system is applied to a CDMA mobile communication system and a test procedure thereof will be described.

Environmental measurement system according to an embodiment of the present invention and the environmental measurement server 100, the environmental measurement client 200 and the environmental measurement client 200 to communicate with the server 100 through the TCP / IP network 300 and It is composed of a base station stage 500 connected to the switching center (MSC) 400, and the TCP / IP network 300 and the environmental measurement apparatus (100,200) and connected to each other.

At this time, the base station stage 500 includes a base station management apparatus (BSM) 510, a control station (BSC; 520), a base station (BTS; 530), and a mobile station (MS; 540), and the mobile station 540 wirelessly. In communication with the base station 530, the base station 530 is connected to the control station 520 by wire and performs a wired / wireless conversion function between the mobile station 540 and the control station 520. In addition, the exchange 400 is connected to the control station 520 to manage call setup and release, call processing, and the like of the mobile station 540.

In the embodiment of the present invention, the mobile station 540 preferably uses a terminal or a PDA equipped with an operation program, and the environmental measurement server 100 may also test the voice quality by connecting such a PDA and corresponding various status information. It is possible to transmit to mobile station 540.

Accordingly, looking at the procedure for testing the voice quality between the remote (M2M) or remote-operating station (M2L), first, the PDA terminal of the mobile station attempts to connect to the server and then undergoes a test authentication step (S100) from the server, Attempts a call between a remote (M2M) or between a remote-operating station (M2L) through an operation program mounted therein (S200). If the call attempt fails, the PDA terminal notifies the server and receives and displays an abnormal message, that is, an F3000 message, from the server (S210 to S230). If the call attempt is successful and a call is established, the PDA terminal requests a test to the server (S300). . At this time, the PDA terminal without the test request is used as the operating terminal with only a simple call connected.

Subsequently, the PDA terminal for voice test transmits and registers the call processing status (for example, between remote or remote-operating stations) and the information data of the terminal to the server (S400), and then the PDA terminal, i. The voice test is performed by checking the status of the client (S500). As described above, the measured value obtained by performing the test is transmitted to the server through the environmental measurement client (S600), and then transmitted to the PDA terminal through the TCP / IP network (S700) to improve the voice quality with the PESQ algorithm mounted inside the terminal. Test and display (S800 ~ S900).

At this time, when the voice test between the remote-operating stations (M2L) is performed, by testing the PESQ algorithm mounted in the server, the voice quality can be directly tested without transmitting the test measurement received at the server to the terminal of the base station. .

The procedure for performing such a voice test is not limited to the embodiment of the present invention, but also applies to a procedure for testing voice quality using the mobile communication environment measurement system of the present invention.

As described above, according to the present invention, the sound quality of the M2M or M2L of the mobile communication system can be measured using a PDA equipped with an operation program, and the frequency environment according to the region can be measured. It is effective to test efficiently. Furthermore, there is an effect that can provide a high call quality service.

In addition, by using the PDA to display the results of the voice test and all the information in the process, it is possible to increase the operational efficiency by allowing other operators to check in real time while moving in the field.

Furthermore, there is an advantage in that the PDA receiver can be equipped with a GPS receiver to more efficiently manage the call quality status according to the region.

Claims (6)

A system for measuring voice quality between mobile stations communicating with a base station and performing communication in a mobile communication system or between the mobile station and an operating station, The mobile station is composed of a terminal having an operation program mounted therein, An environmental measurement server for storing the information of the mobile station after the test request is granted by the mobile station, and statistically processing a result of the voice test according to the stored mobile station information; And Mobile environment using PDA, which is in charge of call processing between mobile station and operating station and is connected to the environmental measurement server through TCP / IP network and transmits the results of the voice test to the environmental measurement server. Communication environmental measurement system. The method of claim 1, wherein the environmental measurement server A communication module unit for performing communication over the TCP / IP network; A system information registration unit for granting test certification to the mobile station under test through the communication module unit and storing information data of the mobile station; Central examination management unit that manages all the processes of the negative test; And And a statistical unit configured to receive a result of a voice test from the environmental measurement client and perform statistical processing according to the information of the mobile station stored in the system information registration unit. The method of claim 1, wherein the environmental measurement client A communication module unit for performing communication between the environmental measurement server and the mobile station through the TCP / IP network; A state management unit in charge of a matching state with an exchange station and call processing between the mobile station and the operating station; And And a voice test management unit for storing a result of the voice test between the mobile station and the operating station and transmitting the result to the environmental measurement server. The mobile station of claim 1, wherein the mobile station on which the operating program is mounted is selected. A communication module unit for performing communication through the TCP / IP network; A GUI management unit equipped with an operation program for the voice test and the frequency environment test and providing a GUI to be arbitrarily set by a user; A call processing unit in charge of call processing between the mobile station and the mobile station or between the mobile station and the operating station; And a display unit for displaying the result of the voice quality tested by the GUI management unit and the status information of the call processing. 6. A mobile communication environment measurement system according to claim 1 or 5, wherein the mobile station can use a PDA terminal. The mobile communication environment measurement system using a PDA according to claim 1 or 5, wherein a GPS receiver is attached to the mobile station to manage voice quality according to a region.