KR20060037134A - Apparatus and method for testing performance of mobile terminal - Google Patents

Abstract

The present invention relates to an apparatus and a method for performance test of a communication system, and more particularly, to an apparatus and method for testing a performance of a communication system by generating a virtual call. In the present invention, the device for measuring the call path and performance between the mobile terminal and the landline phone as well as between the mobile terminal using the LCS has already been recognized high reliability in the wired telephone network instead of the MCS that could only measure the performance of the call path between the mobile terminal And methods.

In order to provide the above-described apparatus and method, the present invention uses a wired / wireless interface card for connecting the LCS with the mobile terminal.

Local Call Simulator, Mobile Call Simulator, DTMF, Simulator

Description

Apparatus and method for measuring performance of mobile terminal {APPARATUS AND METHOD FOR TESTING PERFORMANCE OF MOBILE TERMINAL}             

1 is a view showing a method of measuring the performance of a landline telephone using the LCS, a local call test device;

2 is a diagram illustrating a method for measuring performance through MCS currently used in performance measurement of a mobile terminal;

3 is a diagram illustrating a method for verifying a communication channel and measuring a performance between a calling mobile terminal and a called wired telephone according to a first embodiment of the present invention;

4 is a diagram illustrating a method for verifying a communication channel and measuring performance between a calling mobile terminal and a called mobile terminal according to a second embodiment of the present invention;

FIG. 5 is a diagram illustrating a method for verifying a communication channel and measuring a performance between a caller's landline telephone and a receiver's mobile terminal according to a third embodiment of the present invention; FIG.

6 is a block diagram of a wired / wireless interface card according to an embodiment of the present invention;

7 is an operation flowchart of the wired / wireless interface card connected to the calling mobile terminal according to an embodiment of the present invention;

8 is a flowchart illustrating an operation of a wired / wireless interface card connected to a called-party mobile terminal according to an embodiment of the present invention.

The present invention relates to an apparatus and a method for performance test of a communication system, and more particularly, to an apparatus and method for testing a performance of a communication system by generating a virtual call.

Typically, in order to measure the performance of the exchange, a local call simulator (LCS) 100, which is a local call test apparatus, was used. The LCS 100 is a device for generating a virtual call using a microprocessor. A method of measuring the performance of the exchange 106 using the LCS 100 will be briefly described with reference.

In general, when a telephone subscriber makes a call, the following procedure is performed. In other words, when the subscriber picks up the handset to check the dial tone heard from the telephone to make a call to the other party and then dials the other party's number, the subscriber hears a beep to the other party's phone. After the call ends, either the called party or the called party ends the call.

Hereinafter, the wired telephone 1 102 will be referred to as the calling party's landline telephone and the wired telephone 2 104 as the called party's landline telephone. However, wired telephone 1102 and wired telephone 2 104 are shown separately to aid in understanding of the present invention. In practice, LCS 100 performs the functions of the two wired telephones, and up to 32 ports ( Port) is provided to perform the functions of a wired telephone.

Thus, as shown in FIG. 1, the switch 106, the landline telephone 1 102 and the landline telephone 2 104 are not directly connected.

In other words, the exchange 106 is directly connected to the LCS 100, it will be understood that the LCS 100 has a built-in telephone.

First, when the LCS 100 hooks off, the exchange 106 generates a dial tone, the LCS 100 sends the destination side Double Tone Multi Frequency (DTMF) to the exchange 106, and the exchange 106 dials the number. Transmit the ringtone to the called landline (104).

The called party's landline telephone 104 receives the ringtone, that is, the LCS 100 that receives the ringtone is hooked off and a call is made to the calling party and the receiving party, and the LCS 100 measures the call in a specific pattern. In this case, it is possible to check the switch function and traffic sound quality of the exchange.

In addition, since the LCS has been used for a long time, it has a reliable and failed statistics function, but the performance of the mobile communication system cannot be measured because it measures the performance of the exchange.

On the other hand, in the current measurement of the performance of the mobile communication system due to the characteristics of the radio, the performance is measured through the equipment called MCS instead of the LCS. The MCS is a device for measuring voice call quality and can make and receive calls on behalf of a wireless subscriber, which will be briefly described with reference to FIG. 2.

First, a call is made in the MCS and a called number and a signal of the called mobile terminal 2 202 are transmitted to the calling mobile terminal 1 200. The mobile terminal 1 200 and the mobile terminal 2 202 are connected to the MCS 204 through wire cables L1 and L2, respectively.

The calling mobile terminal 1 200 and the called mobile terminal 2 202 perform wireless communication with the base station (Base Tranceiver System: hereinafter referred to as BTS) 208 according to a wireless protocol standard. The BTS 208 controls several BTSs and is connected to the exchange 212 through a base station controller (hereinafter referred to as BSC) 210 that manages radio resources.

In FIG. 2, it is assumed that the called-side mobile terminal 2 202 is in the cell radius of the same BTS 208, so that networks connected to the switch 212 are not displayed.

Here, the switch 212 means a mobile switching center (hereinafter referred to as MSC) that is generally used in a mobile communication network.

The computer (PC) 206 connected with the MCS 204 controls the outgoing call and radio protocol of the MCS 204 through programming. For example, the wireless standard between the mobile terminals 200 and 202 and the BTS 208 includes a code division multiple access (CDMA) scheme, a time division multiple access (TDMA) scheme, and a wideband code division multiple access (W-CDMA) scheme. You have to program it accordingly.

As described above, the MCS 204, which is an automatic call generation device, was used to measure the performance of the mobile terminal. The MCS 204 attempts to make a call by sending a called number and a call key to the calling mobile terminal 200. The ringing tone generated by the MSC 204 generates a ringing tone to the incoming mobile terminal 202. However, the MCS 204 currently used to measure the performance of the mobile terminal is available only when the MCS 204 responds to an incoming call and thus cannot generate a large number of calls.

In addition, only performance measurement between mobile terminals was possible, and between the landline telephone and the mobile terminal could not be measured by the MCS (204), the statistical function completion and reliability of the MCS (204) is not guaranteed as LCS (100), MCS 204 took a lot of time and production costs.

It is therefore an object of the present invention to provide an apparatus and method for measuring the performance of a mobile communication system.

Another object of the present invention is to provide an apparatus and method for measuring performance by a call between a landline telephone and a mobile terminal.

It is still another object of the present invention to provide an apparatus and method having high reliability in measuring performance of mobile terminals and landlines.

The apparatus of the present invention for achieving the above object is in the apparatus for measuring the performance of the mobile terminal by connecting the originating mobile terminal and the local call generation device, and connecting the destination mobile terminal and the local call generation device; And a first wired / wireless interface card connecting the local call generation device and the calling mobile terminal, and a second wired / wireless interface card connecting the local call generating device and the called mobile terminal.

According to an aspect of the present invention, a method for measuring a performance of the mobile terminal by connecting an originating mobile terminal and a local call generation device and connecting a called party mobile terminal with the local call generation device is provided. The step of connecting the originating mobile terminal and the local call generation device may include generating a dial tone when the local call generation device is hooked off to transmit a dual tone multi frequency (DTMF); Converting a dual tone multi frequency (DTMF) signal transmitted by the local call generation device into a number key and a call key signal used by a mobile terminal, and converting the converted signal to the calling mobile terminal; And a process of providing a voice call path when the call path with the mobile terminal to be measured is opened.

DETAILED DESCRIPTION Hereinafter, detailed descriptions of preferred embodiments of the present invention will be described with reference to the accompanying drawings. It should be noted that the same components in the drawings represent the same numerals wherever possible. Specific details are set forth in the following description, which is provided to aid a more general understanding of the invention. And in describing the present invention, if it is determined that the detailed description of the related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

3 is a diagram illustrating a method for verifying a communication channel and measuring a performance between a calling mobile terminal 200 and a called wired telephone 308 according to a first embodiment of the present invention.

Hereinafter, a first embodiment of the present invention will be described with reference to FIG. 3.

First, when the LCS 300 hooks off, the wired / wireless interface card 302 proposed in the present invention generates a dial tone so that the LCS 300 sends the desired called party's telephone number to a DTMF (Double Tone). Multi Frequency). Then, the wired / wireless interface card 302 receives the DTMF and causes the calling mobile terminal 1 200 connected through the wired cable L1 to make a call.

The calling mobile terminal 1 200 transmits an outgoing call to a BTS 208 connected wirelessly, and the BSC 210 connected to the BTS 208 is called a public switched telephone network (hereinafter referred to as a PSTN). Transfers the outgoing call to landline telephone 308 via exchange 212 connected to 306).

When the landline telephone 308 receives the outgoing call, that is, the LCS 300 receives the ring tone, becomes hooked off, and detects and statisticalizes a defect in the tone test and call processing. Set the poor and good performance of the call set to the call between the mobile terminal 1 (200) and the landline (308).

The structure and each configuration of the wired / wireless interface card 302 proposed in the present invention will be described in detail with reference to FIG. 6 below.                     

In FIG. 3, an embodiment of a call path and a performance check between the calling party mobile terminal 1 200 and the called party wired telephone 308 is shown. Hereinafter, the calling party mobile terminal 1 200 and the called party will be described with reference to FIG. 4. An embodiment of a call path and a performance check between the mobile terminals 2 404 will be described.

4 illustrates a method of verifying a communication channel and measuring a performance between a calling mobile terminal 1 200 and a called mobile terminal 2 404 according to a second embodiment of the present invention.

First, before describing FIG. 4, the calling mobile terminal 1 200 and the called mobile terminal 2 404 are connected to the wired / wireless interface card 304 through wired cables L1 and L2, respectively. have.

When the LCS 300 hooks off, the calling side wired / wireless interface card 302 proposed in the present invention generates a dial tone to cause the LCS 300 to call the desired destination telephone number DTMF (Double Tone). Multi Frequency). Then, the wired / wireless interface card 302 receives the DTMF and causes the calling mobile terminal 200 to make a call.

The calling mobile terminal 1 200 transmits an outgoing call to the BTS 208 connected wirelessly, and the BSC 210 connected to the BTS 208 is connected to the called mobile terminal 2 404 B400 400. Forwards the originating call of the originating side mobile terminal 2 (404) via an exchange 212 connected to the < RTI ID = 0.0 > Then, the BTS 402 connected to the called party BSC 400 transmits the outgoing call to the called party mobile terminal 2 404 connected wirelessly.                     

When the called party's mobile terminal 2 404 receives the originating call, the calling party's mobile terminal 1 is transmitted to the LCS 300 through the wired / wireless interface card 304 proposed in the present invention connected to the called party's mobile terminal 2 404. Report the quality and error of the call associated with 200. Then, the manager may measure the call path and performance between the calling mobile terminal 1 200 and the called mobile terminal 2 404 based on the contents reported to the LCS 300.

In addition, the structure and each configuration of the wired / wireless interface cards 302 and 304 proposed in the second embodiment of the present invention will be described in detail with reference to FIG. 6.

In FIG. 4, an exemplary embodiment of a call path and a performance check between the calling party mobile terminal 1 200 and the called mobile terminal 2 404 is illustrated. Hereinafter, referring to FIG. 5, the calling party wired telephone 308 and the called party will be described. An embodiment of a call path and a performance check between the mobile terminals 2 404 will be described.

FIG. 5 illustrates a method of verifying a communication channel and measuring a performance between a caller-side wired telephone 308 and a caller-side mobile terminal 2 404 according to a third embodiment of the present invention.

First, when the LCS 300 hooks off, the switch 212 connected to the LCS 300 sends a dial tone and the LCS 300 generates a called party's telephone number as a DTMF. Then, the exchange 212 translates the number and transmits an outgoing signal to the exchange 212 connected to the called party's mobile terminal 2 404 through the connected PSTN 306.

The outgoing signal transmitted to the exchange 212 transfers the outgoing call of the originating mobile terminal 2 404 through the exchange 212 connected to the BSC 400 connected to the called mobile terminal 2 404. Then, the BTS 402 connected to the called party BSC 400 transmits the outgoing signal to the called party mobile terminal 2 404 connected wirelessly.

When the called party's mobile terminal 2 404 receives the originating signal, the called party's wired telephone (LCS 300) is connected to the LCS 300 through the wired / wireless interface card 304 proposed in the present invention connected to the called party's mobile terminal 2 404. 308 report the quality and error of the channel connected to the call. Here, the wired / wireless interface card 304 and the called-side mobile terminal 2 404 are connected with a wired cable L2.

Then, the administrator may measure the call path and the performance between the calling party landline telephone 308 and the called party mobile terminal 2 404 based on the contents reported to the LCS 300.

Hereinafter, the wired / wireless interface card proposed by the present invention will be described with reference to FIG. 6.

6 is a block diagram of a wired and wireless interface card according to an embodiment of the present invention. The dial tone generating unit 600 of the wired / wireless interface card 302 is connected to the LCS 300 to generate a dial tone when the LCS 300 hooks off to transmit DTMF. In addition, a ring signal is transmitted to the LCS 300 based on an incoming signal input through the transmit / receive interface 606 connected to the called-party mobile terminal.

In addition, the control unit 604 converts the DTMF signal transmitted by the LCS 300 into a number key and a call key signal used by the mobile terminal, and transmits the converted signal to the calling mobile terminal. The transmission is transmitted through the reception interface unit 606.                     

The voice processor provides a voice call path when the call path is opened with the mobile terminal to be measured.

7 is a flowchart illustrating an operation of the wired / wireless interface card 302 connected to the originating mobile terminal 1 200 according to an embodiment of the present invention, which will be described below.

In step 700, the controller 604 of the wired / wireless interface card 302 checks whether a hook off has occurred from the LCS 300.

If the hook off occurs in step 700, the control unit 604 of the wired / wireless interface card 302 causes the dial tone generator 600 to generate a dial tone in step 702.

If a dial tone is generated in step 702, in step 704, the LCS 300 generates a DTMF signal and attempts to make an outgoing call. In step 706, the control unit 604 of the wired / wireless interface card 302 receives the DTMF signal. Converts to the telephone number and call key signal of the mobile terminal.

The control unit 604 transmits the converted signal in step 706 to the calling mobile terminal 1 200 through the transmission / reception interface unit 606. In step 708, the originating mobile terminal 1 200 that receives the transmitted signal attempts to make a call based on the converted signal in step 710.

8 is a flowchart illustrating an operation of the wired / wireless interface card 304 connected to the called-party mobile terminal 2 404 according to an embodiment of the present invention, which will be described below.

When an incoming signal is generated at the destination mobile terminal 2 404 in step 800, the transmit / receive interface unit 606 of the wired / wireless interface card 304 receives the incoming signal in step 802.

Based on the incoming signal input in step 802, the controller 604 generates a ring signal to the dial tone generator 600 and transmits the ring signal to the LCS 300. The hook off is performed in the LCS 300 based on the ring signal transmitted in step 804.

Although an embodiment of the present invention has been described taking only one mobile terminal and one mobile terminal or one mobile terminal and one wired telephone as an example, in practice, once according to the number of ports provided in the LCS 300. Multiple calls can be made to enable performance testing with multiple mobile terminals or landlines.

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the scope of the following claims, but also by the equivalents of the claims.

As described above, when the present invention is applied, a call test between the mobile terminal and the landline as well as between the mobile terminals can be performed during the performance test of the mobile communication system, and by using the LCS rather than the MCS, Higher reliability and statistical functions allow for more efficient performance measurements.

Claims (5)

An apparatus for measuring a performance of the mobile terminal by connecting a calling party mobile station and a local call generator, and connecting a called party mobile terminal and the local call generator. A first wired / wireless interface card connecting the local call generator and the calling mobile terminal; And a second wired / wireless interface card connecting the local call generator and the called mobile terminal. The method of claim 1, wherein the first wired or wireless interface card, A dial tone generator for generating a dial tone when the local call generator generates a hook off and transmitting a dual tone multi frequency (DTMF); A dial tone is generated to convert the DTMF signal transmitted by the local call generation device into a number key and a call key signal used in the mobile terminal, and to transmit the converted signal to the calling mobile terminal through a transmission / reception interface unit. With the control unit, And a voice processing unit for providing a voice communication path when the communication path with the mobile terminal to be measured is opened. The method of claim 1, wherein the second wired or wireless interface card, A transmission / reception interface unit for receiving an incoming signal from the called mobile terminal; A control unit which generates a ring signal based on the incoming signal input to the transmission / reception interface unit; A dial tone generator which transmits the ring signal generated by the controller to the local call generator; And a voice processing unit for providing a voice call path when the call path is opened with the mobile terminal to be measured. In the method for connecting the originating mobile terminal and the local call generation device, and connecting the destination mobile terminal and the local call generation device to measure the performance of the mobile terminal, The process of connecting the originating mobile terminal and the local call generation device, Generating a dial tone when the local call generating device hooks off and transmits a dual tone multi frequency (DTMF); Generating a dial tone and converting a dual tone multi frequency (DTMF) signal transmitted by the local call generation device into a number key and a call key signal used in a mobile terminal; Transmitting the converted signal to the calling mobile terminal; And providing a voice call path when the call path is opened with the mobile terminal to be measured. The method of claim 4, wherein the connecting of the called-party mobile terminal and the local call generation device comprises: Receiving an incoming signal from the called mobile terminal; Generating a ring signal based on the incoming signal; Transmitting the ring signal to the local call generator; And providing a voice call path when the call path is opened with the mobile terminal to be measured.

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