KR20010017406A - Apparatus and method for testing handoff running status of cdma2000 mobile telecommunication system - Google Patents

Abstract

PURPOSE: An apparatus and method for testing handoff execution status in a CDMA2000 is provided to test handoff execution status, depending on the movement of a terminal between base stations, more exactly and to make a user achieve the manipulation of test execution conveniently. CONSTITUTION: A control unit(100) carries out the overall control of an apparatus for testing handoff execution status. A handoff test information storage unit(140) stores test information required according to the handoff execution of terminals and base stations. A test result display(160) displaying the status of test results composed of a PN detection display(160-2), a pilot strength measurement display(160-3) and a terminal selection control and status display(160-1). The active PN detection display(160-2) carries out the detection of active PN, based on various test information stored in the handoff test information storage unit(140), and displays its status. The pilot strength measurement display(160-3) measures the pilot strength variations of neighboring base stations in which handoffs are generated and displays its results graphically. The terminal selection control and status display(160-1) outputs the status of a terminal display screen so that the kind of a terminal can be selected by a user. A transmitting signal attenuation strength controller and display(120) adjusts transmitting signal attenuation strength from a base station corresponding to the movement of a terminal and displays a result of adjustment graphically. A handoff test result storage unit(150) stores various graphs in the form of parameters according to the user's test result storage request. A user information input processor(130) receives the input of required test information from the user. A display status processor(110) displays test status, test results and test information status.

Description

Apparatus and method for performing handoff performance of next generation code division multiple access mobile telephone network system {APPARATUS AND METHOD FOR TESTING HANDOFF RUNNING STATUS OF CDMA2000 MOBILE TELECOMMUNICATION SYSTEM}

The present invention relates to an apparatus and a method for testing a handoff performance state according to a base station movement of a terminal in a next generation code division multiple access mobile telephone network system (aka CDMA2000).

Manufacturers who implement mobile telephone network systems typically test in advance whether each product performs normal operation before actual implementation of the corresponding system product. However, implementing a system in a real environment and testing it is excessively expensive and time-consuming to test, and the implementation is inadequate. Therefore, the conventional manufacturers simulated the environment when the mobile telephone network system was actually applied as a separate test equipment to test the necessary matters and to perform the normal operation.

In particular, in the code division multiple access mobile telephone network system, whether to perform handoff becomes a very important part in performing continuous operation of the call, and such handoff is also implemented by implementing separate test equipment as described above. A simulation of off was performed and a test of normal operation was performed accordingly.

However, the existing handoff test equipment of the code division multiple access mobile telephone network system uses only searcher information to detect the active PN necessary for performing the handoff. On the other hand, there was an error in detecting PN as an active PN even in a PN which is not an active PN. The problem of such error generation was not a big problem due to some error in the test of the existing code division multiple access mobile telephone network system, but the next generation code division multiplex access mobile telephone network requiring more sophisticated and accurate test results. In a system, such errors may cause greater problems. In addition, the conventional test equipment has not implemented a method for the user to review later by reading the test result separately after completing the test according to the handoff. In addition, it is a common practice to adjust the signal attenuation value of the radio signal to 60 dB by using the unit of measurement of 1 dB unit, and the measurement in such a unit performs the handoff more precisely and the state accordingly is tested. Next generation code division multiplexing access mobile phone network system has become an unsuitable part. In the case of a terminal performing a handoff, the existing test equipment allows only one terminal to move to test a handoff execution state accordingly. That is, despite the need for a handoff performance test in a situation where multiple terminals of different types move simultaneously, there is a limitation of a test environment that cannot accomplish this. At the same time, the user wants to perform the necessary tests in a more convenient interfacing environment, and so far no test apparatus or method has been implemented that implements the appropriate interfacing environment.

As a result, the above problems are not to cause a big problem when applied to the conventional mobile telephone network system, but in the next generation code division multiple access mobile telephone network system that requires more sophisticated and accurate testing, such as the future CDMA2000, This leads to problems that cannot be tested.

Therefore, the object of the present invention can be applied in the next generation code division multiple access mobile telephone network system (aka CDMA2000), and the handoff performance according to the mobile station's base station movement can be tested more precisely and accurately, and at the same time The present invention provides a handoff test apparatus and a method for performing a user's operation more conveniently.

In order to achieve the above object, the present invention provides an apparatus and method for testing a handoff performance state of a code division multiple access mobile telephone network system, wherein the received field strength strength, a moving speed of a selected test target terminal, and a moving path are used as test test information. It receives the input and stores in the form of a file, and according to the handoff state test operation input, control the environment of the movement and the received field strength of the test target terminal as the input test test information, varying according to the movement of the terminal and continuous Acquire the searcher information and the finger information generated at predetermined time intervals, compare and analyze the acquired searcher information and the finger information, and detect and display the active PN as a result, According to the detected detected active PN as a predetermined parameter value in a separate file An apparatus and method for testing a handoff performance state are stored.

1 is a block diagram of an apparatus for performing a handoff state test of a next generation code division multiple access mobile telephone network system according to the present invention;

2 is a flowchart illustrating a handoff performance test method of a next generation code division multiple access mobile telephone network system.

3 is a diagram illustrating an input state of test information according to a handoff environment of a terminal to be tested and a base station according to a preferred embodiment of the present invention on a display screen;

4 is a diagram illustrating a first test progress state of performing a handoff according to a preferred embodiment of the present invention on a display screen;

5 is a view showing on the display screen a second test progress state of performing a handoff according to an embodiment of the present invention.

6 is a view showing on the display screen a third test progress state of performing a handoff according to a preferred embodiment of the present invention.

7 is a view showing a fourth test progress state of performing a handoff on a display screen according to an exemplary embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, in describing the present invention through the reference numerals added to the components of each drawing, it should be noted that the same reference numerals are used even when the same reference numerals are shown on the other drawings to indicate the same components.

In addition, in the following description, many specific details such as names and numerical values of specific test information are shown, which are provided to help a more general understanding of the present invention, and the present invention may be practiced without these specific details. It will be obvious to those skilled in the art. In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

First, the test apparatus according to the present invention is implemented to perform the following main features and operations accordingly.

First, although the existing handoff performing state test apparatus detects the active PN only with the searcher information and performs the display operation of the detection result according to the present invention, more precise and reliable activation ( Active) Detection of an active PN is performed in parallel with finger information in addition to searcher information so that detection of the PN can be achieved. That is, the characteristic feature of the present invention is to process the actual active PN to be detected and displayed as a result of the comparison of the searcher information with the finger information.

Secondly, the present invention can store the information of the preset handoff execution environment (Configration) in the form of a separate file in accordance with the handoff performed, and can be used again after loading it as needed. It is implemented so that the function to be performed is performed.

Third, after the test according to the handoff is completed, the test results are stored in a sequential file format according to the time of the handoff. Then, the stored file is read out as needed and the user can see the contents immediately. So you can implement it too.

Fourthly, in the case of the existing handoff performance test apparatus, the radio signal attenuation value is adjusted in units of 1 dB, and the radio signal attenuation value is adjusted in units of 0.5 dB to suit the next generation mobile telephone network system. This allows the 60dB maximum rise limit of the radio signal attenuation value of the existing test equipment to be increased by at least 63.5dB.

Fifthly, in the case of a typical handoff performing state test apparatus, only one test target terminal is selected to display a result according to the present invention. It can be specified as a test target, and the handoff test information is displayed accordingly.

Sixth, in order to allow the user to more easily recognize the test state, the more beautiful display state and all the test information are displayed on one screen. This is achieved through the application of the application program according to the present invention.

1 is a block diagram of an apparatus for performing a handoff state test of a next generation code division multiple access mobile telephone network system according to the present invention described above. 1 is a block diagram illustrating a configuration of a test apparatus according to the present invention divided into blocks according to respective functions. In FIG. 1, each of the components is disclosed and illustrated as a separate device. However, this is merely to clarify the features of the present invention in describing the present invention, and a general computer device may be applied in a real environment. In the implementation of the application of different functions having the corresponding function. For example, the application of the present invention may be implemented as an application applied to a Windows-based program of Microsoft Corporation, a system operating program. Such a state is illustrated in the accompanying drawings, FIGS. 3 and 4, 5, and 6. 3, 4, 5, and 6 illustrate a state of a computer device display screen when the present invention is applied in a real environment, and thus, an operation state of a test device according to the present invention may be clearly understood.

The present invention will now be described with reference to the accompanying drawings.

1 is a block diagram of an apparatus for performing a handoff state test of a next generation code division multiple access mobile telephone network system according to the present invention. As mentioned above, this may be implemented as an application that performs a corresponding function on a computer.

First, the controller 100 is responsible for the overall control of the component devices in the practice of the present invention. And overall control of the test apparatus according to the embodiment of the present invention is achieved. The control unit 100 is implemented as a central processing unit of a computer device to which the test device according to the present invention is applied to perform a corresponding operation.

The handoff test test information storage unit 140 stores predetermined test information required according to the handoff performed by the terminal and the base station under test. It stores the inputted property information when the user makes the environment information and the property information of the object to be tested. The input information includes the name of the base station, the received field strength measurement attenuation value (RSSI Calibration Atten Value), the moving speed of the terminal, the value for the longterm effect, the type of the terminal, and the progress path of the handoff. Such information is information that is processed after being input through the user information input processor 130 and transmitted. In addition, the user is usually implemented as an application according to the execution of information input interfacing implemented on a PC. The input state of the corresponding test information according to the implementation of the application is in the form of a display screen shown in FIG. 3, and the user selects or inputs each test information through the display screen state of FIG. 3. . More details thereof are made in the description of FIG. 3.

The test result indicator 160 displays the state of the test result according to the embodiment of the present invention. It is largely composed of an active PN detection indicator 160-2, a pilot strength measurement indicator 160-3, a terminal selection control and a status indicator 160-1. Each configuration constitutes the following operation.

The active PN detection indicator 160-2 performs accurate detection of active PN based on various test information input according to the aforementioned application according to the present invention, that is, stored in the handoff test test information storage 140. Process to display the status. Referring to the display operation, when the terminal moves between the base stations along a path previously selected by the user, the search and compare the search information and finger information that occurs variably according to the path movement, and compares and examines the comparison. As a result of the investigation, active PN is detected. The result is then displayed in graph form. In other words, the active PN detection indicator 160-2 is configured to detect and display accurate active PN. In other words, in the present invention, the detection indication of the active PN is made by referring to the finger information in addition to the search information, unlike the conventional scheme. The resulting test status indication is then displayed in the DM window, which allows it to be displayed as a continuous graph form over time.

The pilot strength measurement indicator 160-3 measures a change in pilot strength of neighbor base stations where a handoff occurs in a mobile station under test, which is continuously performed. And the result is processed to display in graph form.

The terminal selection control and status indicator 160-1 outputs the state of the corresponding display screen so that the type of the terminal to be tested is selected by the user. The state of the selected terminal is also displayed.

The transmission signal attenuation strength control and indicator 120 adjusts the transmission signal attenuation strength in the corresponding base station in a predetermined unit in response to the movement of the terminal, and displays a result according to the adjustment of the predetermined unit in an appropriate graph form. In the preferred embodiment of the present invention, the predetermined unit is 0.5 dB, and the terminal processes the calculated unit to be 0.5 dB every 1 pixel movement on the display screen according to the corresponding application. Accordingly, the attenuation intensity generation and indicator 120 can be established by the attenuation value of the transmission signal in 0.5dB units. The control signal attenuation value of the base station is also controlled in units of 0.5 dB.

The handoff test result store 150 stores various graphs displayed as described above in a state of a predetermined parameter value according to a test result storage request of the user. The save will be made with the filename selected previously. This stored data may then be processed and used according to the needs of the user.

The user information input processor 130 receives input of necessary information to be tested from the user and processes the input information to be a test item.

The display state processor 110 controls to display a test state and a result, a task information state, and the like.

The present invention according to the above configuration shows the following display state as the implementation of the corresponding application implemented, and as such display state, the user can achieve the preferred embodiment of the present invention.

2 is a flowchart illustrating a handoff performance test method of a next generation code division multiple access mobile telephone network system.

Looking at the state of the handoff test operation according to the present invention, in step 210 performs a storage operation of the information for the handoff test. In this step, information such as the name of the base station, the received field strength measurement attenuation value (RSSI Calibration Atten Value), the moving speed of the terminal, the value for the longterm effect, the type of the terminal, and the progression path of the handoff are made. As a result of the operation of step 210, a display screen of the state shown in FIG. 3, which is described below, is displayed, and when the corresponding information is completed, the information is in the form of a file in the handoff test test information storage 140. Is stored as.

In step 212, the transmission signal attenuation control and the operation of the indicator 120 are performed. This operation is performed by adjusting the transmission signal attenuation intensity at the base station in a predetermined unit in response to the movement of the terminal as described above, and displaying the result of the adjustment of the predetermined unit in an appropriate graph form. According to a specific embodiment of the present invention, when the terminal moves by one pixel on the display screen, the pixel is calculated as 0.5 dB so that the attenuation intensity control and the display 120 control the transmission attenuation value in 0.5 dB steps. Then, the transmission attenuation value of the base station is controlled in 0.5 dB steps. This can be seen through a diagram of the test status screen state of FIGS. 4, 5, 6, and 7.

In operation 214, the operation of the test result indicator 160 is performed. In this case, the terminal selection control and the state indicator 160-1 are controlled to achieve the operation, and the operation control of the active PN detection indicator 160-2 and the operation control of the pilot strength measurement indicator 160-3 are performed. In the embodiment of the present invention, the operation of the terminal selection control and the status indicator 160-1 is performed to operate as a parallel port of the computer device, and the control is possible by connecting up to three terminals. On the other hand, in the conventional case to control the serial port, the number of terminals to be tested was limited to only one. Operation of the active PN detection indicator 160-2 is achieved through reference of finger information and searcher information. Operation control of the pilot strength measurement indicator 160-3 processes to display the pilot strength of the adjacent groups where the handoff occurs.

In step 216, a handoff occurs and a result storage operation is performed. This is done through the operation of the handoff test result store 150. When the handoff occurs, the mobile station performs processing for the inter-cell movement and reflects the transmission attenuation value. The terminal stores the situation at the time of handoff occurrence.

3 shows an input state of test information according to the present invention as a display screen state.

Looking at this, first, the name of the 'Cell Name' is input to distinguish each name of the base station desired by the user. In 'Rssi Calibration', enter the received field strength attenuation value. This performs an attenuator function to control the transmission power of each base station input to the terminal to be constant during the initial setup process, in the embodiment of the present invention is processed to input from 0 to 63dB in 1dB units. The default value of 30dB is a good value. The 'Longterm Effect' item has a padding effect that makes the environment similar to the site where the system is actually installed. If the user wants to ignore the fading effect, check the 'Ignore effect' function. In an embodiment of the present invention, the range of the ± Var value of the 'Longterm Effect' item is 0 to 40 dB and the input unit is 1 dB. The default value is ± 8dB. In the 'Iterant No' category, enter a value between 0 and 10 in 1 step, and the default value is 5 times. In the 'Moving Speed' item, the moving speed of the terminal is input in executing the handoff. In the present invention, 1 to 900km / h to process the input in 1km / h units. The default value is 60 km / h. The 'DM Mobile Set' item configures the serial port setting of the computer that makes the type of terminal and the execution of the application. This is because the terminal is connected to the computer through the serial port and the test is performed. In the 'Save Handoff Result' item, the file name in which the handoff result is to be saved is selected by clicking the 'Set File Name' button in the drawing. When saving is not required, check the 'don't save result' item.

The test information entered according to the input state of the corresponding test information becomes a reference material which can be used later in the test of performing the handoff.

The 'Handoff No' item indicates the number of handoffs. The 'Path Drive No' item shows the number of times that the path has been set. The DM window displays the energy values of adjacent groups. In the case of the neighboring group list, in the case of the active group PN, 'T' is displayed next to the PN to indicate that it is in an active state. The 'FINGER' item shows the finger value after the terminal.

4, 5, 6, and 6 are diagrams illustrating a test progress state of performing handoff according to a preferred embodiment of the present invention on a display screen, and accordingly after the entry of the item of FIG. 3 is completed. The test progress is performed.

Through the handoff test apparatus and the method of the present invention as described above, it can be applied to the next generation code division multiple access mobile telephone network system (aka CDMA2000), and the handoff performance state according to the movement between the base stations of the terminal is more sophisticated. And it can be tested accurately, and at the same time there is an advantage that the user can perform the operation of performing such a test more conveniently.

Claims (6)

An apparatus for testing handoff performance of a code division multiple access mobile telephone network system, A handoff test test information storage unit which receives a received electric field strength, a moving speed of a selected test target terminal, and a moving path as test test information, and stores them in a file form; A control unit for controlling a movement and reception field strength environment of the test target terminal as the input test test information according to a handoff execution state test operation input; Acquire continuously searcher information and finger information that are variable according to the movement of the terminal at predetermined time intervals, compare and analyze the acquired searcher information and finger information, and detect and display active PN as a result. An active PN detection display section, And a handoff test result storage unit configured to store the detected and displayed active PN as a predetermined parameter value in a separate file according to a test result storage request of a user. The method of claim 1, According to the handoff execution state test operation input, the pilot strength measurement display unit continuously measures the pilot intensity change of neighboring base stations where the handoff occurs as the input test test information, and then displays the measurement result in the form of a graph. The handoff performing state test device, characterized in that it further comprises. The method according to claim 1 or 2, The transmission signal attenuation strength of the base station corresponding to the movement of the terminal to be tested is determined in a predetermined unit so that the acquisition of the searcher information and the finger information according to the change of the transmission signal attenuation strength and the measurement of the pilot strength change are performed. And a transmission signal attenuation intensity generation and indicator for controlling the adjustment and controlling the display of the adjustment status. A method for testing handoff performance of a code division multiple access mobile telephone network system, A handoff test test information storing process of receiving a received electric field strength, a moving speed of a selected test target terminal, and a moving path as test test information, and storing the received test information as a file; A handoff execution state control process of controlling a movement and reception field strength environment of the test target terminal as the input test test information according to a handoff execution state test operation input; Acquire continuously searcher information and finger information that are variable according to the movement of the terminal at predetermined time intervals, compare and analyze the acquired searcher information and finger information, and detect and display active PN as a result. An active PN detection and marking process, And a handoff test result storing step of storing the detected and displayed active PN as a predetermined parameter value according to a user's request for storing the test result as a predetermined parameter value. The method of claim 4, wherein According to the handoff execution state test operation input, the pilot strength measurement display which continuously measures the pilot intensity change of the neighboring base stations where the handoff occurs as the input test test information and then displays the measurement result in the form of a graph The handoff performing state test method, characterized in that it further comprises a process. The method according to claim 4 or 5, Predetermined units of the transmission signal attenuation strength of the corresponding base station corresponding to the movement of the terminal to be tested so that the acquisition of the searcher information and the finger information and the measurement of the pilot strength change are performed according to the change of the transmission signal attenuation strength. And controlling the display of the adjustment state and generating and displaying transmission signal attenuation strength.