JP2006101160A - Scenario forming device, false base station, and scenario forming program, and recording medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a scenario forming device, a false base station, scenario forming programs, and a recording medium, wherein the test of communication terminals can be accurately carried out in a short time. <P>SOLUTION: Messages contained in the communication sequence of a layer 3 described in a log file 6 are analyzed, the set values of the parameters of layers 2 and 1 related to the base station are extracted from the above messages, the set values of the parameters of the false base station are determined on the basis of the set values of the extracted parameters and the set values of parameters stored in a parameter table, and scenarios which are operated in the false base station are formed on the basis of analysis information analyzed by a message analyzing means 11 and the set values of the parameters determined by a parameter determining means 18. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a scenario generation device, a pseudo base station, a scenario generation program, and a recording medium. For example, a base station is simulated in order to check whether a communication terminal such as a mobile phone or a mobile terminal functions as designed. The present invention relates to a scenario generation device, a pseudo base station, a scenario generation program, and a recording medium that generate a scenario describing an operation for simulating a communication sequence in the simulated base station.

  Recently, a communication terminal is brought to the test site, and a network layer (for example, W-CDMA (Wideband Code Division Multiple Access) etc.) is exchanged between a base station and a communication terminal in communication using a predetermined communication protocol (for example, W-CDMA (Wideband Code Division Multiple Access)). After performing a so-called field test in which log information recording the communication sequence of layer 3) is acquired from a communication terminal, a scenario is created for controlling a pseudo base station that simulates a base station based on this log information, and communication The operating state of the communication terminal is inspected by connecting the terminal to the pseudo base station and operating the communication terminal.

  By the way, in this inspection method, in order to create a scenario, knowledge about the contents of the standard and the operation of the pseudo base station is necessary. For example, a standard established by 3GPP (The 3rd Generation Partnership Project), etc. Since there are a lot of contents and there are contents that are updated every few months at present, workers who can create scenarios are limited to those with sufficient knowledge, and layer 2 / layer 1 Since there are many parameters necessary for setting, scenario creation becomes even more complicated, and even if a knowledgeable person creates it, it takes a lot of time to create the scenario. For this reason, it is required to shorten the time for creating a scenario for simulating a pseudo base station.

  On the other hand, the scenario is automatically created by displaying a key layout similar to the key layout of the communication terminal on the display device, specifying the displayed key with a mouse, etc., and performing the normal operation actually performed by the user At the same time, after automatically creating a test procedure document that assumes erroneous operation, the simulator automatically converts it to a descriptive language that can be decoded, and creates a test system scenario. Based on this scenario, the operating state of the communication terminal is determined. Some have been inspected (see, for example, Patent Document 1).

  Therefore, considering the log information obtained in the field test combined with the scenario automatic generation method shown in Patent Document 1 and using the communication terminal inspection method, a scenario necessary for reproducing the phenomenon in the simulated environment is obtained from the log information. It can be created automatically, and after setting the necessary input parameters, the scenario is automatically generated, so the environmental field test and feedback period can be shortened.

Also, by automatically creating a scenario, even an operator who does not have knowledge of communication standards, etc. can reproduce the phenomenon from the log information obtained in the field test. When creating a scenario, a worker who does not have knowledge of the communication standard or the like can reproduce the phenomenon, and a worker who has knowledge of the communication standard or the like can be assigned to investigate the reproduction result. As a result, workers having knowledge of communication standards and the like can be concentrated on the inspection work of communication terminals.
JP-A-9-911169

  However, in such a conventional communication terminal inspection method, a communication sequence including a layer 3 message is recorded in the log information collected from the communication terminal side of the communication sequence between the base station and the communication terminal. However, since the log information of the data link layer (layer 2) and the physical layer (layer 1) related to the base station is not recorded, the following problem occurs.

  That is, in order for the base station and the communication terminal to communicate, data cannot be received unless the base station and the communication terminal understand each other's layer 2 / layer 1 settings. In the case of a communication protocol having a function of changing the setting of 1 (for example, W-CDMA, which will be described below using W-CDMA as an example), the layer 2 / layer 1 setting between the base station and the communication terminal The communication sequence for changing the layer 2 is executed, and in the communication sequence for changing the layer 2 / layer 1 setting, the layer 3 communication including the new layer 2 / layer 1 setting content is performed. Sequence messages are sent and received.

  For this reason, by analyzing the log information, in the operation of creating a scenario for simulating the communication sequence in the pseudo base station, the timing for changing the setting of layer 2 / layer 1 or for operating the pseudo base station Some of the configuration parameters can be obtained.

  However, the layer 2 / layer 1 parameters that are set only by the base station that the base station does not need to transmit to the other party, such as the channel output power and channel number on the base station side, are layer 3 communication Since it is not included in the sequence message, a scenario including a complete layer 2 / layer 1 configuration parameter for operating the pseudo base station cannot be generated only by analyzing log information. It is not possible to accurately inspect the operating state.

  The present invention has been made to solve the conventional problem, and can shorten the time for creating a scenario for simulating a communication sequence by a pseudo base station from log information acquired by a field test or the like. In order to simulate a state close to the real environment at the pseudo base station, the parameter setting value obtained from the log information is compared with the parameter setting value necessary for the operation of the pseudo base station that cannot be obtained from the log information. An object of the present invention is to provide a scenario generation device, a pseudo base station, a scenario generation program, and a recording medium capable of generating a determined scenario and performing a test of a communication terminal accurately and in a short period of time. To do.

  The scenario generation device of the present invention uses a communication protocol including a communication sequence for transmitting communication parameters from a base station to a communication terminal, and performs a communication sequence of communication performed between the base station and the communication terminal. A scenario generation device that generates a scenario for simulating the communication sequence in a pseudo base station that simulates the base station based on the recorded log information, and a message included in the communication sequence described in the log information Analyzing the message, and extracting the parameter setting value from the message; a parameter including at least the parameter for the pseudo base station to simulate the communication sequence described in the log information; and Parameters that are stored in association with parameter settings By comparing the parameter table storage means having a data table and the parameter setting value of the log information extracted by the message analysis means with the parameter setting value stored in the parameter table, the pseudo base station Parameter determining means for determining a parameter setting value for simulating a communication sequence, analysis information analyzed by the message analyzing means, and the pseudo base station determined by the parameter determining means for simulating a communication sequence Based on parameter setting values, the system includes a scenario generation unit that generates a scenario for operating the pseudo base station.

  With this configuration, the message included in the communication sequence (layer 3) described in the log information is analyzed, and the setting value of the parameter (layer 2 / layer 1) related to the base station is extracted from the message. The parameter setting value described in the scenario is selected and determined from the parameter setting value and the parameter (layer 2 / layer 1) setting value stored in the parameter table, and the analysis information analyzed by the message analysis means Since the scenario for simulating the communication sequence at the pseudo base station is generated based on the parameter setting value determined by the parameter determining means, the parameters described in the scenario for simulating the communication sequence at the pseudo base station are It can be generated automatically.

  For this reason, it is possible to shorten the time for creating a scenario for simulating a communication sequence by a pseudo base station from log information acquired by a field test or the like, and to simulate a state close to a real environment at the pseudo base station In addition, the parameter setting value obtained from the log information and the parameter setting value necessary for the operation of the pseudo base station that cannot be obtained from the log information are compared and selected, and the determined scenario can be generated, The communication terminal can be tested accurately and in a short time.

  Further, the parameter determination means of the scenario generation device of the present invention, when the parameter setting value for the pseudo base station to simulate the communication sequence is included in the parameter setting value of the log information, When the pseudo base station described in the scenario sets a parameter setting value to a parameter setting value for simulating a communication sequence, and is not included in the parameter setting value of the log information, it is stored in the parameter table. The parameter setting value is set to the parameter setting value for the simulated base station described in the scenario to simulate the communication sequence.

  With this configuration, it is possible to easily generate parameters described in a scenario for simulating a communication sequence in a pseudo base station. In particular, when the setting value of the parameter for the simulated base station to simulate the communication sequence is included in the setting value of the log information parameter, the pseudo base station that describes the setting value of the log information parameter in the scenario Is set to a parameter set value for simulating the communication sequence, the communication sequence in which the log information has been acquired and the situation at that time can be simulated in a state closer to the real environment in the pseudo base station.

  Further, in the scenario generation device of the present invention, the setting value of the parameter stored in the parameter table is a setting value having a predetermined width, and the parameter determination means includes the width stored in the parameter table. The pseudo base station determines a set value of a plurality of parameters for simulating a communication sequence according to a set value having a value, and the scenario generation means includes the plurality of parameters determined by the parameter determination means. Based on a set value, it is comprised from what produces | generates the some scenario for operate | moving with the said pseudo base station.

  With this configuration, it is possible to create a plurality of scenarios having different parameter setting values in the same communication sequence for one log information, and the operation of the communication terminal under a plurality of different conditions using a pseudo base station The condition can be checked.

  Further, the parameter table storage means of the scenario generation device of the present invention includes at least a parameter including the parameter for simulating the communication sequence described in the log information according to a communication standard, and a setting value of the parameter. It comprises a plurality of parameter tables that are stored in association with each other.

  With this configuration, it is possible to create a scenario with parameters according to the communication standard from each log information acquired communication sequences in multiple communication standards. It is possible to inspect the operation state of the communication terminal by performing simulation in a state close to.

  The pseudo base station of the present invention includes the scenario generation device described above, and communicates with the communication terminal based on a communication protocol including a communication sequence described in the scenario generated by the scenario generation device. It is composed of things that do.

  With this configuration, it is possible to shorten the time for creating a scenario for simulating a communication sequence by a pseudo base station from log information acquired by a field test or the like, and simulate a state close to a real environment at the pseudo base station Therefore, the parameter setting value obtained from the log information is compared with the parameter setting value necessary for the operation of the pseudo base station that cannot be obtained from the log information, and the determined scenario can be generated. The communication terminal can be tested accurately and in a short time.

  Further, the scenario generation program of the present invention provides communication communication between the base station and the communication terminal using a communication protocol including a communication sequence for transmitting parameters related to communication from the base station to the communication terminal. A scenario generation program for generating a scenario for simulating the communication sequence at a pseudo base station simulating the base station based on log information recording the sequence, the communication sequence described in the log information on a computer A message analysis process for analyzing the message included in the message and extracting the set value of the parameter from the message, and at least the parameter for the pseudo base station to simulate the communication sequence described in the log information Including parameters and their parameters A parameter table storage process including a parameter table for storing constant values in association with each other, and a comparison between a parameter setting value of the log information extracted by the message analysis process and a parameter setting value stored in the parameter table The parameter determination process for determining a parameter setting value for the pseudo base station to simulate a communication sequence, the analysis information analyzed by the message analysis process, and the pseudo base station determined by the parameter determination process Based on the setting value of the parameter for simulating the communication sequence, it is configured to execute a scenario generation process for generating a scenario for operating the pseudo base station.

  With this configuration, it is possible to shorten the time for creating a scenario for simulating a communication sequence by a pseudo base station from log information acquired by a field test or the like, and simulate a state close to a real environment at the pseudo base station Therefore, the parameter setting value obtained from the log information is compared with the parameter setting value necessary for the operation of the pseudo base station that cannot be obtained from the log information, and the determined scenario can be generated. The communication terminal can be tested accurately and in a short time.

  Further, the above-described scenario generation program is recorded on the recording medium of the present invention.

  With this configuration, it is possible to shorten the time for creating a scenario for simulating a communication sequence by a pseudo base station from log information acquired by a field test or the like, and simulate a state close to a real environment at the pseudo base station Therefore, the parameter setting value obtained from the log information is compared with the parameter setting value necessary for the operation of the pseudo base station that cannot be obtained from the log information, and the determined scenario can be generated. The communication terminal can be tested accurately and in a short time.

  The present invention can shorten the time for creating a scenario for simulating a communication sequence by a pseudo base station from log information acquired by a field test or the like, and simulates a state close to a real environment at the pseudo base station. Therefore, the parameter setting value obtained from the log information is compared with the parameter setting value necessary for the operation of the pseudo base station that cannot be obtained from the log information, and the determined scenario can be generated. It is possible to provide a scenario generation device, a pseudo base station, a scenario generation program, and a recording medium that can perform a test of a communication terminal accurately and in a short period of time.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  1 to 13 are diagrams showing a first embodiment of a scenario generation device, a pseudo base station, a scenario generation program, and a recording medium according to the present invention.

  First, the configuration will be described. FIGS. 1A and 1B are configuration diagrams of an inspection system for communication terminals such as mobile phones and mobile terminals. FIG. 1A shows the process until log information is acquired in the inspection system. A base station 1, a mobile communication terminal 2a as a communication terminal including a mobile phone, a mobile terminal, and the like, and a log information acquisition device 3.

  FIG. 1 (b) shows the process from the acquired log information to generating a scenario and simulating the communication sequence in the inspection system. The log information acquiring apparatus 3 (common to FIG. 1 (a)), scenario It is constructed by a log scenario converter 4 as a generation device, a pseudo base station 5, and a mobile communication terminal 2b to be tested that communicates with the pseudo base station 5.

  Here, for the sake of explanation, “communication terminal 2 (mobile communication terminal 2)” is described separately as “mobile communication terminal 2a” and “mobile communication terminal 2b”. , Also referred to as “communication terminal 2 (mobile communication terminal 2)”.

  In the present embodiment, the mobile communication terminal 2a is connected to the base station 1 to operate the mobile communication terminal 2a during the field test. At this time, the base station 1 and the mobile communication terminal 2a are previously operated. Communication is performed using a predetermined communication protocol, and a communication sequence of a network layer (hereinafter referred to as layer 3) is also performed.

  In this layer 3 communication sequence, parameters of data link layer (hereinafter referred to as layer 2) / physical layer (hereinafter referred to as layer 1) are set as a communication sequence transmitted from the base station 1 to the mobile communication terminal 2a. Contains a message to change.

  The log information acquisition device 3 acquires a log mainly composed of a communication sequence of layer 3 from the mobile communication terminal 2a and creates a log file (log information) 6 composed of electronic data. The log scenario converter 4 generates a scenario file 7 composed of electronic data by generating a scenario for simulating a layer 3 communication sequence in the pseudo base station 5 simulating a base station based on the log file 6. ing.

  The pseudo base station 5 performs communication with the mobile communication terminal 2b based on the scenario file 7 generated by the log scenario converter 4, thereby reproducing the communication sequence generated in the field test and the mobile communication terminal 2b. The operating state is inspected.

  As shown in FIG. 2, the log scenario converter 4 includes an input unit 10, a message analysis unit 11, a scenario generation unit 12, an output unit 13, a parameter table storage unit 17, and a parameter determination unit 18.

  The input means 10 acquires the log file 6 and inputs it to the message analysis means 11.

  The message analysis unit 11 includes a computer such as a CPU (Central Processing Unit), a ROM (Read Only Memory), and a RAM (Random Access Memory), and includes a communication protocol determination unit 14 and a parameter extraction unit 15.

  The communication protocol determination unit 14 analyzes a message included in the communication sequence described in the log file 6, and the parameter extraction unit 15 refers to the message analyzed by the communication protocol determination unit 14, and 2 / A message for changing parameter settings of layer 1 and a setting value of a parameter designated by the message are extracted.

  The parameter table storage unit 17 includes a storage device such as a hard disk, a CD, and a DVD-ROM. The parameter table storage unit 17 is a communication protocol (for example, W-CDMA (Wideband Code Division Multiple Access) from which the pseudo base station 5 acquires the log file 6. A parameter table 22 for storing the parameters for operating ()) and the set values of the parameters in association with each other.

  FIG. 3 is a diagram illustrating an example of the parameter table 22. The parameter table 22 stores parameters associated with communication using the W-CDMA communication protocol standardized by 3GPP and the setting values of the parameters in association with each other.

  In FIG. 3, the parameter table 22 associates the output power of a layer 1 DPCH (Dedicated Physical Channel) channel and its set value “−10” as parameters, and the layer 1 DPCH channel number and parameter. The set value “1” is associated.

  In addition, the parameter table 22 associates a scramble code of layer 1 and its set value “00000080” as parameters, and the number of DCCH (Dedicated Control Channel) channels of layer 2 and its set value “4” as parameters. "Is associated.

  Further, the parameter table 22 associates the number of layer 2 DTCH (Dedicated Traffic Channel) channels and the set value “3” as parameters. The parameter table 22 is associated with other parameters of layer 2 / layer 1 and their set values, which are not shown.

  The parameter determination means 18 is composed of the above-described computer, and is based on the layer 2 / layer 1 parameters of the log file 6 extracted by the parameter extraction means 15 and the parameters stored in the parameter table 22. The setting value of the parameter of the station 5 is determined.

  The scenario generation means 12 is composed of the above-described computer as with the message analysis means 11 and includes a parameter pattern incorporation unit 16. The scenario generation unit 12 creates a scenario based on the analysis result of the log file 6 analyzed by the message analysis unit 11, and the parameter pattern incorporation unit 16 stores the log analyzed by the message analysis unit 11. Based on the analysis result of the file 6, the parameter setting value determined by the parameter determining means 18 is incorporated into the parameter pattern of layer 2 / layer 1.

  The log scenario converter 4 is provided with a driver device that reads information from a recording medium (not shown) such as a CD-ROM or a DVD-ROM. In a CD-ROM, DVD-ROM, etc., a message analysis process for analyzing a message included in the communication sequence described in the log file 6 and extracting a set value of a layer 2 / layer 1 parameter from the message, A parameter table storage process including the parameter table 22 described above, in which the pseudo base station 5 associates and stores a parameter including at least a parameter for simulating the communication sequence described in the log file 6 and a setting value of the parameter; The parameter setting values for the simulated base station 5 to simulate the communication sequence by comparing the parameter setting values of the log file 6 extracted by the message analysis process with the parameter setting values stored in the parameter table 22. Decide The pseudo base station 5 is operated based on the parameter determination process, the analysis information analyzed by the message analysis process, and the set value of the parameter for the pseudo base station 5 determined by the parameter determination process to simulate the communication sequence. A scenario generation program including a scenario generation process for generating a scenario for storing the scenario is stored, and the driver device reads the scenario generation program.

  Then, the above-described computer of the log scenario converter 4 of the present embodiment executes scenario generation processing described later by executing this scenario generation program.

  Next, the scenario generation process will be described with reference to FIGS. FIG. 4 is an example of a communication sequence including a layer 2 / layer 1 setting change performed between the mobile communication terminal 2a (described as “terminal 2” in FIG. 4) and the base station 1 during a field test.

  Broadcast information is always transmitted from the base station 1, and when the mobile communication terminal 2a is powered on, the mobile communication terminal 2a is registered in the base station 1 and an antenna stands on the liquid crystal display screen of the mobile communication terminal 2a. Next, when a call operation is performed from the mobile communication terminal 2a (for example, access to a web page), a line connection is established between the base station 1 and the mobile communication terminal 2a, and the mobile communication terminal 2 and the mobile communication terminal 2a communicate with each other. Authentication processing is performed between the terminals 2a.

  Next, when a connection request message is transmitted from the mobile communication terminal 2a to the base station 1, a sequence for changing layer 2 / layer 1 settings is executed. Here, the base station 1 notifies the mobile communication terminal 2a of a message for changing the layer 1 setting. This message includes parameters for the new setting of layer 1.

  Next, a message indicating that the layer 1 setting change has been completed is transmitted from the mobile communication terminal 2 a to the base station 1, and when this message arrives at the base station 2, the layer 1 setting change is transmitted to the base station 1 and the mobile communication. As a result, the terminal 2a has performed normally, and a connection permission message is transmitted from the base station 1 to the mobile communication terminal 2a. Next, communication connection processing is performed between the base station 1 and the mobile communication terminal 2a, and communication is performed by connecting to the final connection destination.

  In the field test, after the communication between the base station 1 and the mobile communication terminal 2a at the actual site as described above, the log information acquisition device 3 exchanges data with the base station 1 from the mobile communication terminal 2a. The log file 6 in which the communication sequence is recorded is acquired.

  A part of the log file 6 is shown in FIG. In FIG. 5, a portion indicated by reference numeral 21 is a layer 3 setting change message of layer 1 transmitted from the base station 1 to the mobile communication terminal 2 a.

  Next, a method for generating a scenario from the log file 6 will be described. FIG. 6 is a flowchart of the scenario generation process. This flow is a scenario generation program stored in the ROM of the log scenario converter 4 and executed by the CPU.

  First, when the log file 6 is input to the input means 10, the communication protocol determination unit 14 analyzes the log file 6 in units of messages (step S1). Next, the parameter extraction unit 15 determines whether or not there is a message that requires layer 2 / layer 1 setting processing (step S2). If there is no message that requires setting processing, message transmission (or reception) is performed. A process is added to the scenario (step S3).

  Next, the message analysis unit 11 determines whether there is a message to be analyzed in the log (step S6). If it is determined that there is no message to be analyzed, the scenario generation unit 12 performs a final scenario conversion process to complete the scenario file 7 (step S7). If it is determined in step S6 that there is a message to be analyzed in the log, the process returns to step S1 and analysis is continued.

  On the other hand, if the parameter extraction unit 15 determines in step S2 that there is a message that requires layer 2 / layer 1 setting processing, the parameter determination means 18 uses this message and the value of the parameter table 22 that is an internal table. The layer 2 / layer 1 parameters are determined (step S4).

  FIG. 7 is a conceptual diagram of parameter determination processing performed by the parameter determination means 18. In FIG. 7, for example, the parameters 23 stored in the parameter table 22 and their setting value patterns 23 are the parameters A to D and the setting values ●, Δ, ×, ◎, and the pattern 24 extracted from the log file 6. Are parameters A to D and set values ●, Δ, ■, and none (blank).

  The parameter determining means 18 compares the pattern 23 of the parameter table 22 and the pattern 24 of the log file 6 to determine the layer 2 / layer 1 parameters to be described in the scenario, and the parameters obtained from the messages included in the log file 6 Is selected (determined) as a parameter described in the scenario file 7 as it is, and when the parameter cannot be obtained from the message included in the log file 6, the parameter stored in the parameter table 22 is used as the scenario. It is selected (determined) and set as a parameter described in the file 7.

  In the case of the parameter A shown in FIG. 7, the parameter A is set to the parameter A described in the scenario because the values of the parameters A of the pattern 23 and the pattern 24 match.

  Regarding parameter B, since the values of parameter B in pattern 23 and pattern 24 match, set value Δ is set in parameter B described in the scenario.

  Regarding parameter C, since the values of parameter C in pattern 23 and pattern 24 do not match, the setting value {circle around (3)} of log file 6 is preferentially set to parameter C described in the scenario.

  For parameter D, since there is no parameter setting value in pattern 24, parameter D setting value ◎ of pattern 23 in parameter table 22 is set.

  When the setting value of layer 2 / layer 1 is changed in this way, for example, the setting value of the output power of the DPCH channel of layer 1 in the parameter table 22 of FIG. When the setting of 1 is changed, the layer 1 DPCH channel number is changed.

  8 shows the layer 1 setting change message extracted from the log file 6 actually analyzed, and FIG. 9 shows the setting change message of FIG. 8 extracted and analyzed by the parameter extraction unit 15. In FIG. 9, a portion surrounded by a frame denoted by reference numeral 41 indicates a set value of the layer 1 DPCH channel number as a parameter to be changed.

  Next, the scenario generation unit 12 adds the layer 2 / layer 1 setting process to the scenario by the parameter pattern incorporation unit 16 (step S5). Next, the message analysis unit 11 determines whether there is a message to be analyzed in the log (step S6). If it is determined that there is no message to be analyzed, the scenario generation unit 12 performs a final scenario conversion process to complete the scenario (step S7).

  10 to 13 are excerpts from the scenario file 7 generated by the scenario generation means 12 regarding the layer 1 setting change message. This message is generated from the log of the layer 1 setting change message shown in FIG. It has been done.

  When the mobile communication terminal 2 b is connected to the pseudo base station 5, the pseudo base station 5 simulates a communication sequence based on a scenario including a layer 1 setting change message.

  FIG. 10 is a scenario 42 showing a portion describing a layer 1 setting change message transmitted from the pseudo base station 5 to the mobile communication terminal 2b. FIG. 11 shows a layer 42 based on the setting change message scenario in the pseudo base station 5. This is a scenario 43 of a part where a description of setting one parameter is made. FIG. 12 shows a scenario 44 in which the pseudo base station 5 receives a layer 1 setting change completion message from the mobile communication terminal 2b.

  FIG. 13 shows a scenario of a part that defines setting values of parameters of layer 2 / layer 1. In FIG. 13, a portion surrounded by a frame indicated by reference numeral 45 is a parameter for setting a value analyzed from the layer 1 setting change message. For example, a DPCH channel number of layer 1 (in a frame indicated by reference numeral 41 in FIG. 9). The enclosed part is converted into a scenario). Further, a portion surrounded by a frame denoted by reference numeral 46 is a setting value of the parameter table 22, for example, output power of the DPCH channel of layer 1.

  As described above, in the present embodiment, the message included in the communication sequence of layer 3 described in the log file 6 is analyzed, and the setting value of the layer 2 / layer 1 parameter related to the base station 1 is extracted from the message. Then, by comparing the extracted parameter setting values with the parameter setting values stored in the parameter table 22, the pseudo base station 5 determines the parameter setting values for simulating the communication sequence, and analyzes the message. Based on the analysis information analyzed by the means 11 and the parameter setting values for the simulated base station 5 determined by the parameter determining means 18 to simulate the communication sequence, a scenario for operating the simulated base station 5 is generated. As a result, the pseudo base station 5 simulates the communication sequence. Parameters describing the scenario to the can be automatically generated.

  For this reason, it is possible to shorten the time for creating a scenario for simulating a communication sequence by the pseudo base station 5 from the log file 6 acquired by a field test or the like, and at the pseudo base station 5 in a state close to a real environment. In order to perform the simulation, a parameter setting value obtained from the log file 6 and a parameter setting value necessary for the operation of the pseudo base station 5 that cannot be obtained from the log file 6 are selected by comparison, and a determined scenario is generated. The mobile communication terminal 2b can be tested accurately and in a short time.

  In addition, the parameter determination unit 18 of the present embodiment is configured so that the parameter setting value of the log file 6 is used when the parameter setting value for the simulated base station 5 to simulate the communication sequence is included in the parameter setting value of the log file 6. If the pseudo base station 5 describing the set value in the scenario sets the parameter set value for simulating the communication sequence and is not included in the parameter set value in the log file 6, the parameter stored in the parameter table 22 is stored. Since the pseudo base station 5 described in the scenario is set to the parameter setting value for simulating the communication sequence, the parameter described in the scenario for simulating the communication sequence in the pseudo base station 5 is set. Can be easily generated.

  In particular, when a parameter setting value for the simulated base station 5 to simulate a communication sequence is included in the parameter setting value of the log file 6, the parameter setting value of the log file 6 is described in the scenario. Since 5 is set to the set value of the parameter for simulating the communication sequence, the communication sequence obtained from the log file 6 and the situation at that time can be simulated in the pseudo base station 5 in a state closer to the real environment. .

  14 to 18 are diagrams showing a second embodiment of the scenario generation device, the pseudo base station, the scenario generation program, and the recording medium according to the present invention. The configuration is the same as that of the first embodiment. A number is attached and description is abbreviate | omitted.

  In the present embodiment, the setting values of the layer 2 / layer 1 parameters stored in the parameter table 22 can be set with a predetermined width (hereinafter also referred to as a fluctuation range). As shown in FIG. 4, the log scenario converter 4 includes an input unit 20 such as a keyboard, a touch panel, or a remote controller for performing an input for changing the setting range of the parameter setting value stored in the parameter table 22 and an input for specifying the parameter to be changed. I have.

  FIG. 15 is a conceptual diagram of the parameter determination process performed by the parameter determination means 18, and the parameters 31 stored in the parameter table 22 and their setting value patterns 31 in FIG. 15 will be described.

  The pattern 31 is associated with the parameter A and its set value ●, the change range of the set value ● is set to the maximum value A1 and the minimum value A2, and the change unit of the set value is 2.

  Also, the parameter 31 is associated with the parameter B and its set value Δ, the change range of the set value Δ is set to the maximum value B1 and the minimum value B2, and the change unit of the set value is 1.

  Further, the parameter 31 is associated with the parameter C and its set value x, the change range of the set value x is set to the maximum value C1 and the minimum value C2, and the change unit of the set value is 5.

  Further, the parameter 31 is associated with the parameter D and its set value ◎, the change range of the set value ◎ is set to the maximum value D1 and the minimum value D2, and the change unit of the set value is 3.

  Next, scenario generation processing will be described based on the flowchart of FIG.

  For example, it is assumed that the operator has set the variation range of the set value of the parameter B of layer 2 / layer 1 to Δ1 to Δ5 by the input unit 20. When the log file 6 is input to the input means 10, the communication protocol determination unit 14 analyzes the log file 6 in message units (step S11), and the parameter extraction unit 15 has a message that requires layer 2 / layer 1 setting processing. Whether or not (step S12).

  If there is no message that requires setting processing in step S12, message transmission (or reception) processing is added to the scenario (step S13).

  Next, the message analysis unit 11 determines whether there is a message to be analyzed in the log (step S16). If it is determined that there is no message to be analyzed, the scenario generation unit 12 performs a final scenario conversion process to complete the scenario file 7 (step S17).

  If it is determined in step S16 that there is a message to be analyzed in the log, the process returns to step S11 and analysis is continued.

On the other hand, if the parameter extraction unit 15 determines in step S12 that there is a message that requires layer 2 / layer 1 setting processing, the parameter determination means 18 uses this message and the value of the parameter table 22 that is an internal table. The layer 2 / layer 1 parameters are determined (step S14).
The process of step S14 will be described with reference to FIG.

  The parameter determining means 18 compares the pattern 31 with the pattern 32 of the layer 2 / layer 1 parameter extracted from the log file 6 and describes the parameter A in the scenario because the value of the parameter A matches. Set the set value ● to parameter A.

  For parameter B, set values Δ1 to Δ5 are set in advance from the input means 20, and each set value is used. That is, first, the set value Δ1 of the parameter B of the pattern 31 is set.

  Regarding parameter C, since the values of parameter C in pattern 31 and pattern 32 do not match, setting value {circle around (3)} of log file 6 is preferentially set to parameter C described in the scenario.

  Regarding parameter D, since there is no parameter setting value in pattern 31, parameter D setting value ◎ of pattern 31 in parameter table 22 is set. In this way, the layer 2 / layer 1 parameter pattern 33a described in the scenario is set.

  Thereafter, similarly to the setting values Δ2 to Δ5 of the pattern 31, the layer 2 / layer 1 parameter patterns 33b to 33e described in the scenario are set (step S14). As a result, five layer 2 / layer 1 parameter patterns 33a to 33e described in the scenario are set.

  Next, the scenario generation unit 12 adds the setting process of the first parameter pattern of layer 2 / layer 1 to the scenario by the parameter pattern incorporation unit 16 (step S15).

  Next, the message analysis unit 11 determines whether there is a message to be analyzed in the log (step S16). If it is determined that there is no message to be analyzed, the scenario generation unit 12 performs a final scenario conversion process to complete the scenario file 7 (step S17).

  Further, the parameter pattern incorporating unit 16 confirms whether the parameter pattern set in step S14 exists (step S18). If there are remaining parameter patterns, the scenario generation means 17 creates a final scenario file 7 corresponding to the number of remaining parameter patterns based on the scenario file 7 completed in step S17 (step S19). . As a result, N (5) scenario files 7 including the scenario file 7 created in step S17 are completed (step S20).

  FIG. 16 is a diagram showing a scenario generation process when the operator designates whether or not the setting value of the parameter B is changed from the input unit 20 and does not specify the changing range of the setting value. In FIG. 16, a method of setting the layer 2 / layer 1 parameters described in the scenario by comparing the pattern 31 of the parameter table 22 with the layer 2 / layer 1 parameter pattern 37 extracted from the log file 6 is shown in FIG. It is the same as that shown in.

  However, regarding the parameter B, the minimum value A1 to the minimum value A5 included in the pattern 31 of the parameter table 22 are set as the fluctuation range, and the layer 2 / layer 1 parameters described in the scenario are set.

  In FIG. 16, the layer 2 / layer 1 parameter pattern 35a described in the scenario in which B1 is set as the parameter setting value, and the layer 2 / layer 1 parameter described in the scenario in which B1 + 1 is set as the parameter setting value Pattern 35b of layer 2 / layer 1 described in the scenario in which B2 is set as a parameter setting value.

  FIG. 17 is a diagram showing a scenario generation process when the operator does not specify both the parameter for specifying the variation range and the variation range of the set value from the input means 20. 17, the method of setting the layer 2 / layer 1 parameters described in the scenario by comparing the pattern 31 of the parameter table 22 and the layer 2 / layer 1 parameter pattern 38 extracted from the log file 6 is shown in FIG. Although the setting values of the pattern 31 and the pattern 38 do not match with respect to the parameter C, as described above, the setting value ■ of the pattern 38, which is the value extracted from the message as described above, is described in the scenario. 2 / Set as parameter setting value of layer 1

  However, for the parameter D that does not exist in the pattern 38, the maximum value D1 to the minimum value D2 included in the pattern 31 of the parameter table 22 are set as the fluctuation range, and the layer 2 / layer 1 parameters described in the scenario are set.

  In FIG. 17, the layer 2 / layer 1 parameter pattern 36a described in the scenario in which D1 is set as the parameter setting value, and the layer 2 / layer 1 parameter described in the scenario in which D1 + 3 is set as the parameter setting value Pattern 36b... Layer 2 / Layer 1 parameter pattern 36n described in the scenario in which D2 is set as the parameter setting value is set.

  As described above, in the present embodiment, a plurality of scenario files 7 having different parameter setting values in the same communication sequence can be created for one log file 6, and a plurality of scenarios files 7 can be created using the pseudo base station 5. The operating state of the mobile communication terminal 2b can be inspected under different conditions.

  19 and 20 are diagrams showing a third embodiment of the scenario generation device, the pseudo base station, the scenario generation program, and the recording medium according to the present invention, which are different from the first embodiment only in the parameter table. Other configurations are the same as those of the first embodiment, and will be described with reference to the drawings of the first embodiment.

  As shown in FIG. 19, the present embodiment is characterized in that the parameter table storage means 17 includes a plurality of the parameter tables 51, 52, 53 according to the communication standard.

  In FIG. 19, a parameter table 51 stores parameters associated with communication using a communication protocol standardized by W-CDMA and setting values of the parameters in association with each other.

  Specifically, in the parameter table 51, the output power of the layer 1 downlink (data transmission from the base station to the mobile communication terminal) DPCH channel and its set value “−10” are associated as parameters. Are associated with the number of the downlink DPCH channel of layer 1 and its set value “1”.

  Further, the parameter table 51 is associated with a scramble code of the downlink DPCH channel of layer 1 and its set value “00000080” as parameters, and the number of DCCH channels of layer 2 and its set value “4” as parameters. Is associated.

  The parameter table 51 associates the number of layer 2 DTCH channels and the set value “3” as parameters. The parameter table 51 is associated with other parameters of layer 2 / layer 1 and their set values, which are not shown.

  Further, the parameter table 52 stores parameters associated with the communication protocol standardized by GSM (Global System for Mobile Communication) provided by the communication carrier and the setting values of the parameters in association with each other.

  Specifically, in the parameter table 52, the output power of the downlink TCH (Traffic Channel) channel of layer 1 and the set value “−20” are associated as parameters, and the downlink TCH channel of layer 1 is used as a parameter. Is associated with the set value “4”.

  Further, in the parameter table 52, the logical channel combination of the layer 1 downlink channel and the set value “SDCCH-8” are associated as parameters. The parameter table 52 is associated with other parameters of layer 2 / layer 1 and their set values, which are not shown.

  The parameter table 53 stores parameters associated with communication using a communication protocol standardized by HSDPA (High Speed Downlink Packet Access) and the setting values of the parameters in association with each other.

  Specifically, in the parameter table 53, the output power of the downlink DPCH channel of layer 1 and its set value “−15” are associated as parameters, and the number of the downlink DPCH channel of layer 1 and its parameter are set as parameters. The setting value “2” is associated.

  Further, the parameter table 53 is associated with a scramble code of the layer 1 downlink DPCH channel and its set value “00000080” as parameters, and as a parameter, the number of layer 2 HS-DCCH channels and their set values ” 4 "is associated.

  Also, the parameter table 53 associates the number of layer 2 HS-DTCH channels and the set value “1” as parameters. The parameter table 53 is associated with other parameters of layer 2 / layer 1 and their set values, which are not shown.

  The parameter table storage unit 17 stores an analysis table for message analysis for the plurality of communication standards described above, and this analysis table stores the priority of which communication standard is used and the received message. Data for comparing which communication standard and the like are stored as internal data.

  Next, communication standard determination processing will be described based on the flowchart of FIG.

  First, when the log file 6 is input to the input means 10 and the message analysis means 11 reads the log file (step S21), the communication protocol determination unit 14 sets the priority of the communication standard used for analysis to the top. (Step S22). Here, priorities are set in the analysis table stored in the parameter table storage unit 17 so that the communication standards are analyzed in the order of W-CDMA, GSM, and HSDPA.

  Next, after the communication protocol determination unit 14 reads a communication standard used for analysis based on the priority order of the communication standard stored in the analysis table (step S23), the communication protocol determination unit 14 stores the log file 6 in message units. (Step S24).

  Next, it is determined whether or not there is data in the log file (step S25). If there is no data, all the read messages can be analyzed correctly, so the communication protocol of the log file 6 is used for the current analysis. It is determined that the communication standard is the current communication standard (step S26).

  If there is data in step S25, the contents of the read message are analyzed (step S27). Specifically, since messages for each communication standard are stored in the analysis table, the read messages are compared in order from the first message in the analysis table. Then, the communication standard is determined when it matches any message in the analysis table, and the communication standard is regarded as an error when it does not match any message in the analysis table.

  Examples of log file 6 messages that do not match the messages in the analysis table are that the size of the analyzed message does not match the message in the analysis table, and that each parameter of the analyzed message is outside the range allowed by the standard. And the message itself does not match.

  While analyzing the message read in step S27, it is determined whether or not the analysis is successful (step S28). If it is determined in step S28 that the message analysis is successful, the process returns to step S24. If it is determined that the analysis is not successful, the communication protocol determination unit 14 sets the communication standard used for the analysis to the next priority. (Step S29).

  Next, it is determined whether or not a communication standard with the next priority exists (step S30). If there is a communication standard with the next priority, the process returns to step S23, and there is no communication standard with the next priority. Since an error has occurred in all communication standards, the communication protocol determination unit 14 generates an error and the process is interrupted, and the communication standard determination process ends.

  A layer described in the scenario file 7 by comparing any setting value of the parameter tables 51 to 53 corresponding to the communication standard determined in this way with the setting value of the layer 2 / layer 1 parameter of the log file 6 2 / Create layer 1 parameters.

  As described above, in the present embodiment, the parameter table storage unit 17 includes the plurality of parameter tables 51 to 53 according to the communication standard, so that a scenario can be created with parameters according to the communication standard. The simulated base station 5 can be simulated with the communication sequence of the corresponding scenario to check the operation state of the mobile communication terminal 2b.

  As described above, the scenario generation device, the pseudo base station, the scenario generation program, and the recording medium according to the present invention create a scenario for simulating a communication sequence by the pseudo base station from log information acquired by a field test or the like. In order to reduce the time and simulate the state close to the real environment in the pseudo base station, the parameter setting values obtained from the log information and the parameters necessary for the operation of the pseudo base station that cannot be obtained from the log information It is possible to compare and select the set value of the system and generate the determined scenario, so that the test of the communication terminal can be performed accurately and in a short period of time. Communicating in a simulated base station that simulates a base station to test whether the communication terminal functions as designed Scenario generation unit for generating a scenario that describes the operation to simulate the Sequence, pseudo base station, is useful as a scenario creating program and a recording medium.

The block diagram (a) of the inspection system of the communication terminal provided with the scenario generation device according to the first embodiment of the present invention is a block diagram (b) of the inspection system until the log information is acquired. Block diagram of an inspection system that generates communication and simulates a communication sequence Block diagram of the scenario generation device of the first exemplary embodiment The figure which shows the parameter table of 1st Embodiment Communication sequence including layer 2 / layer 1 setting change performed between the mobile communication terminal and the base station during the field test in the first embodiment Layer 1 setting change message transmitted from the base station to the communication terminal in the first embodiment Flow chart of scenario generation processing in the first embodiment Conceptual diagram of parameter determination processing performed by the message determination unit of the first embodiment Layer 1 setting change message extracted from the analyzed log file in the first embodiment The setting change message extracted and analyzed by the parameter extraction unit in the first embodiment Scenario of a layer 1 setting change message transmitted from a pseudo base station to a communication terminal in the first embodiment Scenario in which pseudo base station in first embodiment sets layer 1 parameters based on setting change message scenario Scenario of layer 1 setting change completion message transmitted from the pseudo base station to the communication terminal in the first embodiment Scenario for setting parameters of layer 2 / layer 1 in the first embodiment The block diagram of the scenario production | generation apparatus which concerns on the 2nd Embodiment of this invention Conceptual diagram of parameter creation processing performed by the message determination unit of the second embodiment The conceptual diagram of the other parameter creation processing which the message determination means of 2nd Embodiment performs The conceptual diagram of the other parameter creation processing which the message determination means of 2nd Embodiment performs Flowchart of scenario generation processing in the second embodiment The figure which shows the parameter table of the scenario production | generation apparatus which concerns on the 3rd Embodiment of this invention. Flowchart of communication standard determination processing according to the third embodiment

Explanation of symbols

1 Base station 2, 2a, 2b Communication terminal (mobile communication terminal)
4 Scenario generator (log scenario converter)
5 Pseudo base station 6 Log information (log file)
7 Scenario (Scenario file)
11 Message Analysis Unit 12 Scenario Generation Unit 17 Parameter Table Storage Unit 18 Parameter Determination Unit 22, 51, 52, 53 Parameter Table

Claims (7)

Communication performed between the base station (1) and the communication terminal (2) using a communication protocol including a communication sequence for transmitting communication parameters from the base station (1) to the communication terminal (2) A scenario generation device (4) for generating a scenario (7) for simulating the communication sequence at a pseudo base station (5) simulating the base station based on log information (6) recording the communication sequence of And
A message analysis means (11) for analyzing a message included in the communication sequence described in the log information (6) and extracting a setting value of the parameter from the message;
A parameter table (22) for storing a parameter including at least the parameter for simulating the communication sequence described in the log information (6) and a setting value of the parameter in association with the pseudo base station (5) Provided parameter table storage means (17);
By comparing the parameter setting value of the log information extracted by the message analyzing means (11) with the parameter setting value stored in the parameter table (22), the pseudo base station (5) communicates with the communication sequence. Parameter determining means (18) for determining a set value of parameters for simulating
Based on the analysis information analyzed by the message analysis means (11) and the set values of parameters for the pseudo base station to simulate the communication sequence determined by the parameter determination means (18), the pseudo base station A scenario generation device (4) comprising scenario generation means (12) for generating a scenario (7) for operation in (5). The parameter determination means (18), when the parameter setting value for the simulated base station to simulate the communication sequence is included in the parameter setting value of the log information (6), The pseudo base station described in the scenario (7) is set to a parameter setting value for simulating a communication sequence,
When the parameter setting value of the log information (6) is not included, the pseudo base station that describes the parameter setting value stored in the parameter table (22) in the scenario (7) simulates the communication sequence. The scenario generation device (4) according to claim 1, wherein the scenario generation device (4) is set to a set value of a parameter for performing the operation. The setting value of the parameter stored in the parameter table (22) is a setting value having a predetermined width,
The parameter determination means (18) determines setting values of a plurality of parameters for the pseudo base station to simulate a communication sequence according to the setting values having the width stored in the parameter table (22). And
The scenario generation means (12) generates a plurality of scenarios for operating in the pseudo base station (5) based on the setting values of the plurality of parameters determined by the parameter determination means (18). The scenario generation device (4) according to claim 1 or 2, characterized by: The parameter table storage means (17) associates and stores a parameter including at least the parameter for simulating the communication sequence described in the log information according to a communication standard and a setting value of the parameter in association with each other. The scenario generation device (4) according to any one of claims 1 to 3, further comprising a parameter table (51, 52, 53). The scenario generation device (4) according to any one of claims 1 to 4, wherein the scenario generation device (4) is based on a communication protocol including a communication sequence described in the scenario generated by the scenario generation device (4). A pseudo base station (5), which performs communication with a communication terminal (2). Based on log information recording a communication sequence of communication performed between the base station and the communication terminal using a communication protocol including a communication sequence for transmitting communication parameters from the base station to the communication terminal, A scenario generation program for generating a scenario for simulating the communication sequence in a pseudo base station that simulates a base station,
A message analysis process for analyzing a message included in the communication sequence described in the log information in the computer and extracting a setting value of the parameter from the message;
A parameter table storage process comprising a parameter table for storing the parameter including at least the parameter for simulating the communication sequence described in the log information by the pseudo base station and a setting value of the parameter;
The parameter setting value for the pseudo base station to simulate the communication sequence by comparing the parameter setting value of the log information extracted by the message analysis process with the parameter setting value stored in the parameter table A parameter determination process for determining
A scenario for causing the pseudo base station to operate on the basis of the analysis information analyzed by the message analysis process and the set value of the parameter for the pseudo base station determined by the parameter determination process to simulate a communication sequence A scenario generation program for executing a scenario generation process for generating a scenario. A recording medium in which the scenario generation program according to claim 6 is recorded.

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