KR100429190B1 - Packet call automatic testing device in communication system and packet call automatic testing method - Google Patents

Abstract

An object of the present invention is to provide an automatic packet call test apparatus and an automatic packet call test method in a communication system capable of automatically generating a packet call that cannot be previously measured in a CDMA PCS / DCN and IMT-2000 system and performing a long test. . In such a communication system, a packet call automatic test apparatus interoperates a control station / mobile switching station for receiving test packet data sent from at least one terminal and the test packet data transmitted from the control station / mobile switching station to another network. A network interworking device for transmitting, a router for routing test packet data transmitted from the terminal to another packet network, and controlling the terminal to transmit test packet data, and whether the test packet data transmitted from the packet network is normally received. And a control unit for storing statistical data on the determination result. Therefore, it is possible to automatically test packet calls in IMT-2000, IS95-B, and IS95-C CDMA systems.

Description

Packet call automatic testing device in communication system and packet call automatic testing method}

The present invention relates to an automatic packet call test in a communication system, and in particular, to automatically generate a packet call that cannot be measured in an IS-95B, IS-95C, and IMT-2000 CDMA PCS / DCN systems for a long time. The present invention relates to a packet call automatic test apparatus and a packet call automatic test method in a communication system suitable for improving system performance and reliability.

In a wireless communication system, to provide a communication service to a wireless subscriber, a test is performed to verify that a call between subscribers is normally connected before providing a communication service to the subscriber.

As such a test method, CDMA / DCN (Code Division Multiple Access / Digital Cellular Network) uses an automatic call tester that automatically generates a call between terminals and checks the call processing success rate, delay time, and processor capability. The automatic call test between CDMA / DCN terminals is limited to the general voice automatic call test.

In addition, CDMA PCS (PCS) / DCN also tested the call processing between PCS terminals. In CDMA PCS / DCN, the PCS / DCN wireless telephone connection mode (DM) port is used as a general voice tester. The transmission and reception and the voice level were measured to determine the normal status.

Automatic call test for voice and non-voice for wired subscriber is composed of separate device and has equipment to test call attempt and success by connecting wired telephone.In integrated service digital network, basic The automatic call test was performed using a basic rate interface (BRI), a primary rate interface (PRI) call tester, and a No.7 signaling call tester.

In addition, a data call test is performed to generate a data call through a data terminal using a modem in a CDMA PCS / DCN system, and to use a fixed subscriber of a mobile switching center (MSC) or a public switched telephone network. A circuit-switched test method has existed in the past which generates a packet data call of a modem subscriber after receiving a call.

Such a conventional technology was able to test the line data using a plurality of modems, and when using a personal computer, it was possible to connect a single PCS / DCN phone to perform an automatic call test related to voice. The same automatic call test is available only for circuit data or voice data. There is no automatic call test apparatus or method for serving packet data to wireless subscribers, and there is no research on the automatic call test. .

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and automatically generates packet calls that cannot be previously measured in IS-95B, IS-95C, and IMT-2000 CDMA PCS / DCN systems. The present invention provides a packet call automatic test apparatus and a packet call automatic test method in a communication system capable of testing for a long time.

1 is a block diagram showing a packet call automatic test apparatus in a communication system according to the present invention

FIG. 2 is a structural diagram of a communication protocol of the automatic packet call test apparatus shown in FIG.

3 is a diagram illustrating a call processing process of a packet call automatic test apparatus in a communication system according to the present invention.

* Description of the symbols for the main parts of the drawings *

1: power supply 2: terminal

3: input / output interface part 4: point-to-point communication protocol connection part

5: control unit (computer or workstation)

6 monitor 7 packet connection and processing unit

8: packet network

An apparatus of the present invention for achieving the above object is a packet call automatic test apparatus of a communication system, comprising: transmitting from a control station / mobile switching station for receiving test packet data sent from at least one terminal and from the control station / mobile switching station; A network interworking device for interworking the transmitted test packet data to another network, a router for routing the test packet data transmitted from the terminal to another packet network, and controlling the terminal to transmit test packet data; And a control unit for determining whether the test packet data transmitted from the controller is normally received and storing statistical data on the determination result. The method of the present invention also includes at least one terminal, a control station / mobile switching station, a network The terminal through the companion device and the network companion device And a second simulator for controlling a router for routing data transmitted to the packet network and a first simulator for generating a packet call to a called party through the terminal and receiving the packet calls generated from the plurality of terminals through the packet network. In a communication system comprising a control unit for controlling the control, the control unit assigns a destination terminal number of the second simulator to the one terminal through the first simulator to determine whether each terminal is operable. And if the terminal attempts to connect with the network interworking device, checking whether the called number of the terminal is valid in the network interworking device, and if the called number is valid, performing authentication on the called number. And the control station / mobile switching station according to the authentication result. Establishing a call between the first and second simulators through a network interworking device and a router, and allowing the controller to automatically transmit and receive a packet call for a set time between the first and second simulators, and the transmission and reception result. This includes the creation of statistical data.

1 is a block diagram showing a packet call automatic test apparatus in a communication system according to the present invention.

Packet call test apparatus according to the present invention, as shown in Figure 1, the first to the packet call test that can be used in IS-95, IS-95A, IS-95B, IS-95C, IMT-2000 CDMA PCS / DCN system First to nth point-to-point communication protocols connected to n-th terminals 2a to 2n, and the first to n-th terminals 2a to 2n according to a Point-to-Point Protocol (PPP). The control part 5 which controls the connection parts 4a-4n, the said 1st-nth point-to-point communication protocol connection parts 4a-4n, and the said control part 5, and is connected with the said 1st-nth (2a ~ When packet data is generated in 2n), a packet connection and processing unit 7 for connecting the packet network 8 is included.

At this time, there is an input / output interface unit 3 between the first to nth terminals 2a to 2n and the first to nth point-to-point communication protocol connection units 4a to 4n, and the input / output interface unit 3 The first to n th terminals 2a to 2n are connected to RS (Recommended Standard) -232C.

In addition, the controller 5 may be configured as a personal computer or a workstation, and the first to nth terminals 2a to 2n have a wireless section (control station / mobile switching station, network interworking device, router, packet network, etc.). Control to generate a packet call automatically for a time set to, and receive the test packet data through the packet connection and processing unit 7 to generate statistical data. The control unit 5 is connected to a monitor 6 for monitoring the packet data processing of the control unit 5 controlling the first to nth point-to-point communication protocol connection units 4a to 4n. Each of the first to nth terminals 2a to 2n for packet call testing is supplied with power by the power supply unit 1.

2 is a structural diagram of a communication protocol of the automatic packet call test apparatus shown in FIG. 1, and FIG. 3 is a diagram illustrating a call processing process of the automatic packet call test apparatus in the communication system according to the present invention.

The communication protocol structure diagram of the packet call automatic test apparatus shown in FIG. 2 is a terminal, a control station (BSC), a mobile switching center (MSC), a network interworking device (IWF), and a router (IS) in an CDMA system. The communication protocol stack structure standardized in the standard according to the above is a service option 7, in case of DCN, service option 8 in IS-95, service option 15 in IS-95A, and service options 22 to 25 in IS-95B. With the packet automatic call test program set in the control unit 5 as shown, the call is automatically tested by the method as shown in FIG.

For reference, in FIG. 3, the first to nth terminals 2a, 2b,... 2n for the packet call test as shown in FIG. 1 transmit the packet to the packet network 8 through the wireless section under the control of the controller 5. When the call is generated, the packet network 8 transmits a plurality of packet calls transmitted from the first to nth terminals 2a, 2b, ... 2n to the packet access and processing unit 7 through the wired and wireless intervals. The connection and processing unit 7 will be described taking an example of transmitting a test packet call to the control unit 5 as an example.

That is, as shown in FIG. 3, in the packet call test apparatus in which the 1st and 2nd simulators (control part (configured in 5 of FIG. 1)) for testing a packet call are comprised, the operator has 1st thru | or nth terminal ( After assigning the called terminal number to each of 2a to 2n, and giving a start command to the first to nth terminals 2a to 2n through the control unit 5, the first simulator performs a packet call test with the terminal MS + TAF. Send a command to start (AT_CRM = n (n = 1)). At this time, if the terminal 2 is in an operable state, the monitor 6 outputs OK, and if abnormal, an error or no carry is output.

If it is in an operable state, ATDT (Attention Dial Tone) dd is outputted to the terminal MS, and the point-to-point communication protocol (PPP) connection is attempted with the IWF. If the abnormal state is impossible, the result is stored in a storage unit (not shown, for example, a hard disk) to generate statistical data and retry. Here, the operable state and the inoperable state are determined by the control unit shown in FIG. 1, and the control unit also stores the abnormal state in the storage unit or makes statistical data.

Here, ATDT dd is a packet terminating telephone number and is used to analyze the terminating number in an IWF.

Then, when connected to the network interworking device in accordance with the point-to-point communication protocol, authentication for the called number transmitted from each terminal. At this time, the authentication server is connected to the authentication server by PAP (Password Authentication Protocol) or CHAP (Challenge-Handshake Authentication Protocol), which is an authentication communication protocol used in the point-to-point communication protocol (PPP). In addition, even when authentication of the called number fails, the controller checks that the authentication has failed and outputs the result to the monitor.

Here, the service option between the terminal (Terminal Adapt Function (MS-TAF)) and the control station / mobile switching center transmits service option 7 if the terminal is DCN, and service option 15 for PCS (IS-95A). -95B Rate Set 1 transmits 22 and 23, and IS-95B Rate Set 2 sends 24 and 25 to the IWF side of the control station / mobile switching station (SETUP). Send a message.

The IWF determines whether there is an Internet Protocol (IP) resource and allocates an Internet Protocol (IP) when there is an Internet Protocol (IP) resource, and the first simulator and the point-to-point communication protocol (PPP). ), Set the internet protocol control communication protocol (IPCP).

If an error occurs in the step of transmitting a configuration message to the network interworking device (IWF), the control unit generates statistical data on the error result.

Here, if the setting is made correctly, the network interworking device transmits a CONNECT message through a control communication protocol (TCP) to the control station / mobile switching station, and a connection confirmation message (CONNECT) from the control station / mobile switching station to the network interworking device. ACK), the network interworking device sets up a frame relay call to the router.

When the frame relay call is established between the network interworking device IWF and the router ROUTER, the router establishes a call to the second simulator.

As a result, the first simulator and the second simulator are connected by a transmission control protocol-Internet protocol (TCP-IP), and a ping as shown in the drawing from the first simulator to the second simulator (PING: Packet) When requesting an InterNet Grouper, the second simulator transmits an ACK ping for the received data to the first simulator. This response message is analyzed by the first simulator to determine whether the call is successfully established or failed, and the result is output to the monitor and the result is statistically processed.

In case of testing the call processing capacity using such a simulator, it is possible to test the performance of the processor by measuring the data returned by generating data traffic at once after connecting all packet calls, and the most frequent round trip delay in the packet. Round Trip Delay can also be measured by analyzing the time that data is returned using the ping described above.

As described above, the first and second simulators are configured in the control unit (5 in FIG. 1), which is a personal computer or a workstation, and the first to nth terminals are referred to as the calling party. In this case, a packet call test is also possible, in which the second simulator is used as the receiver and the first to nth terminals are set as the called party.

As described above, the packet call automatic test method of the present invention communication system can automatically perform packet call test for a plurality of terminals in a CDMA PCS / DCN system. In other words, the test for the packet call can simultaneously test several terminals including the round-trip delay for the packet call or the processor processing capability. Since the possible problem can be solved, the reliable packet call service can be effectively provided when the packet call service is actually provided.

Claims (4)

A control station / mobile switching station for receiving test packet data sent from at least one terminal; A network interworking apparatus for interworking and transmitting the test packet data transmitted from the control station / mobile switching station to another network; A router for routing test packet data transmitted from the terminal to another packet network; And A control unit which controls the terminal to transmit test packet data, determines whether test packet data transmitted from the packet network is normally received, and stores statistical data on the determination result Packet call automatic testing device in a communication system comprising a. The apparatus of claim 1, further comprising a monitor unit for expressing the packet call test process. Generating at least one terminal, a control station / mobile switching station, a network interworking device, a router for routing data transmitted from the terminal through the network interworking device to a packet network, and generating a packet call to a called party through the terminal. In a communication system comprising a control unit for controlling a second simulator for controlling a first simulator and receiving packet calls generated from the plurality of terminals through the packet network, Assigning, by the control unit, a called party terminal number which makes the second simulator the called party to the one terminal through the first simulator, and checking whether each terminal is operable; If the terminal attempts to connect with the network interworking device, checking whether the called number of the terminal is valid in the network interworking device; If the called number is valid, performing authentication on the called number; Establishing a call between the first and second simulators through the control station / mobile switching station, network interworking device and router according to the authentication result; Automatically transmitting / receiving a packet call for a set time between the first and second simulators by the controller; And Packet call automatic test method applied to a communication system comprising the step of making statistical data according to the transmission and reception results. The method of claim 3, further comprising: outputting an error if the terminal is inoperable, storing the result, and making statistics; Checking whether the terminal is operable after assigning the called terminal number to the terminal again; If the called number of the terminal is invalid, treating the connection as a failure and outputting an error, storing the result and making the statistical data; If the authentication is not successful, the packet call automatic test method applied to the communication system further comprising the step of processing the authentication failure, outputting an error, storing the result and making the statistical data.