KR20060032744A - Data service quality measurement system and method thereof - Google Patents

Abstract

The present invention relates to a system for measuring data quality of service in a mobile communication network. The data quality of service measuring system includes a packet collecting unit collecting packets transmitted and received to a service providing server, and a transaction time detecting unit detecting time information generated for each transaction using the packets collected by the packet collecting unit. A transaction content analysis unit for analyzing whether the at least one transaction requested from the terminal is included in one page of the requested data service using the packet collected by the packet collection unit, and the transaction content analysis; A service that detects transactions included in one page analyzed by the unit and calculates a data service quality index in units of one page by using the time information extracted by the transaction time detector with respect to the detected transactions. And having a quality index generator, Automatically measure and analyze data service quality indicators in the network.

According to the present invention, it is possible to automatically measure the quality of data service in a mobile communication network.

Data service, customer experience quality, mobile network

Description

Data service quality measurement system and method in mobile communication network {DATA SERVICE QUALITY MEASUREMENT SYSTEM AND METHOD THEREOF}

1 is a block diagram illustrating a mobile communication network in which a data service quality measurement system according to a preferred embodiment of the present invention is installed.

Figure 2 is a block diagram schematically showing the internal configuration of a data quality of service measuring system according to the present invention.

3 is a diagram illustrating a call flow between a terminal and a service providing server in mobile communication.

<Description of the symbols for the main parts of the drawings>

200: packet collection unit

210: call connection management unit

220: transaction management unit

230: transaction time detector

240: transaction content analysis unit

250: service quality indicator generation unit

260: application statistics collector

270: log information storage unit

The present invention relates to a data service quality measurement system in a mobile communication network. More specifically, the data service quality can be automatically measured by using log information for all calls that request data service in a mobile communication network. Data quality measurement system.

In a mobile communication network, the quality of data service provided to a customer is determined by minimizing fast access time, usage time and network disconnection rate. As such an indicator for measuring data service quality, data service initial access time, menu moving time, content download time, throughput, and the like are used.

The initial data exposure time (First Impression Time) is when a customer attempts to access a data service using a shortcut button or a menu. It means time until. Since the initial access time is the time from the terminal to the switching system and the service providing server, the time between the successful access to each section and the completion of the actual data transmission called the initial screen is an important index for measuring the optimization of the data service network. It is used.

In addition, the movement time between menus means a time required for a user connected to a data service network to select a specific menu and newly load the corresponding page. Average moving time between menus is a time that a service user moves to find the desired content and is used as an important index for measuring the quality felt by the customer apart from the initial access time.

On the other hand, the customer experience quality of the data communication service is a time that the customer waits to use the service, and is expressed as an initial service access time, page loading time, and content download time. However, no measurement is made on the quality of the customer's bodily sensation that the customer who receives the data communication service on the mobile communication terminal feels with the skin. As a result, even if the communication speed on the network suggested by the mobile communication service provider is excellent, the quality of customer experience that the customer feels directly when the service is provided may be poor.

Common experiences with data services such as text mobile browsers, image base mobile browsers, MMS, VOD or Virtual Machine Based Mobile Application Platforms (e.g. WiPi, BREW, Java, GVM) The quality items are as follows.

Type of service Measurement item Measure     Text and image based browser  Initial connection success rate Calculation rate of successful initial connection to the service by attempting wireless Internet access: Initial number of successful connections / total attempts * 100   Percent complete Calculation rate of successful completion of the search by successfully accessing to the final stage of the desired content after successful initial access: Complete call / Initial access success call * 100  Initial connection time The time required for successful initial connection after attempting wireless Internet access  Average travel time between menus Average of travel time for each step from accessing wireless Internet service to searching for desired content information VM based mobile application  Download success rate Number of successful downloads of a 200k sample file from the archive  Throughput Throughput when downloading sample file  VOD  Download success rate How long does it take to download a specific VOD file Throughput File download throughput  MMS  Message send time Time to press Send button and receive a message that the transmission is complete  Message Receive Time How long it takes to download the MMS by pressing the call button to receive the message

In the conventional measurement method for the measurement items shown in Table 1, the measurement tester directly measures through a process of searching for a menu and downloading contents from the terminal. In the related art, since there is no system capable of automatically generating such statistics, the measurement is performed only manually, and only the statistics of the sampled call can be obtained due to the characteristics of the manual method. In this way, the tester manually measured the measurement items, there was an inconvenience that all the statistical data must be prepared manually. In addition, since the investigator must measure the time while looking at the clock, because the error range is about 1 second or more, accurate time measurement is impossible, and the measurement and analysis for all (all) calls is impossible. In addition, the measurement results were different depending on the date, place, and tester's usage pattern, which made it difficult to generalize the quality of customer experience.

On the other hand, a service failure or abnormal quality call is often found while providing a data communication service to a mobile communication terminal. For example, if the initial connection is not available or delayed, the communication setting is interrupted or delayed while moving between menus, if the content download fails or is delayed, if the MMS transmission is not or delayed, the streaming is not played or disconnected. Case and so on. In the case of such a service failure or abnormal quality call, conventionally, a separate failure cause analysis process was performed and sample statistics were taken again to confirm. In particular, since only a log of a sampled call is conventionally managed, it is difficult to determine the exact cause when a failure occurs for a specific call that is not sampled. Therefore, in the related art, there is a problem that detailed analysis such as the direct cause grasp of the call in which the failure actually occurs is difficult.

In particular, there is no measurement system that automatically measures the general quality of experience for data services and provides statistics. Therefore, it is difficult to measure the quality of customer experience for all subscribers, and it is difficult to determine the cause of the abnormal quality. Therefore, it is necessary to prepare measures to optimize the quality of the service linked to the communication quality analysis.

The present invention for solving the above problems is to provide a data service quality measuring system that can automatically measure the quality of service that the customer who is provided with data communication service directly in the mobile communication network for all subscribers The purpose.

In addition, the present invention automatically measures the quality of data service in the mobile communication network, and analyzes the cause of the quality abnormality for a call interrupted or delayed by using the measured content, thereby finding a factor that degrades the quality of the data communication service. Another aim is to provide a data service quality measurement system that can stabilize the network and provide optimized data services to customers.

A feature of the present invention for achieving the above-described technical problem relates to a data service quality measurement system in a mobile communication network,

A packet collector which collects packets transmitted and received to the service providing server;

A transaction time detector for detecting time information generated for each transaction using the packets collected by the packet collector;

A transaction content analyzer for analyzing whether the at least one transaction requested from the terminal is included in one page of the requested data service using the packet collected by the packet collector;

Detecting transactions included in one page analyzed by the transaction content analyzer, and using the time information extracted by the transaction time detector with respect to the detected transactions, a data service quality index is determined in units of pages. A service quality indicator generation unit for calculating is provided to automatically measure and analyze data service quality indicators in a mobile communication network.

In this case, the data quality of service measurement system further includes a call connection management unit, the call connection management unit using the packet collected by the packet collection unit start time and end time for the call (call) for requesting data service It is desirable to detect and analyze the success or failure of the call using the detected time information.

In addition, the data quality of service measuring system further comprises a transaction management unit, the transaction management unit is to analyze the success or failure of the transaction (transaction) requested from the terminal by using the packet collected by the packet collector. desirable. In this case, the transaction time detector is more preferable to collect time information only when the transaction is successful by the transaction manager.

In addition, the application statistics collecting unit preferably measures the performance of the terminal, the performance of the service providing server, or the network performance using the time information collected from the transaction time detector.

In addition, the transaction content analyzer reads the contents of the collected packets and analyzes the contents of the read packets to detect the transactions constituting one page.

According to the present invention, it is possible to automatically measure the quality of data service in a mobile communication network.

Hereinafter, with reference to the accompanying drawings, the configuration and operation of the data service quality measurement system in a mobile communication network according to a preferred embodiment of the present invention will be described in detail.

1 is a block diagram illustrating a state in which a data service quality measurement system according to a preferred embodiment of the present invention is installed in a mobile communication network, and FIG. 2 schematically illustrates an internal configuration of the data service quality measurement system according to the present invention. It is a block diagram. Hereinafter, the configuration and operation of the data service quality measurement system according to the present invention will be described in detail with reference to FIGS. 1 to 3.

First, as shown in FIG. 1, the data service quality measurement system according to the present invention captures packets transmitted and received from a wireless network and a service providing server, and uses the time information of the collected packets to provide data quality of service. Will be measured.

Data service quality measurement system according to the present invention, as shown in Figure 2, the packet collection unit 200, call connection management unit 210, transaction management unit 220, transaction time detection unit 230, transaction content analysis unit 240, a service quality index generator 250, an application statistics collector 260, and a log information storage unit 270. 3 illustrates a call flow between a terminal and a service providing server in order to explain an operation of a service quality measurement system according to the present invention.

Referring to FIG. 3, when a user requests a data service using a terminal, an HTTP transaction is performed after a call setup process consisting of RF setup, PPP setup, DNS resolving, and TCP setup. At this time, the call setup process is a time represented by "a" of FIG.

On the other hand, one HTTP transaction consists of T1, T2, T3, T4, T5 of FIG. The T1 time is the total request time from the terminal to the server, and T2 is the last request time to the first response time, which is the response time of the server, which may be used as an index indicating the performance of the server. T3 is the total response time of the server, T4 is the terminal response time, T5 is the time interval with the second request when there are several requests in one requested page, and T4 and T5 are the terminal. Can be used as an indicator of the performance of.

Hereinafter, each element of the data service quality measurement system will be described in detail.

First, the packet collecting unit 200 collects packets transmitted and received from the network to the service providing server.

The transaction time detector 230 detects time information generated for each transaction by using the packet collected by the packet collector 200. In this case, the time information collected by the transaction time detector includes a data transmission / reception request time of the terminal, a request completion time, a response start time and a response completion time of the service providing server, and a response time of the terminal. That is, the transaction time detector detects the times of T1, T2, T3, T4, and T5 shown in FIG.

The transaction content analyzer 240 analyzes whether at least one transaction requested from the terminal is included in one page of the requested data service using the packet collected by the packet collector. In this case, the transaction content analysis unit 240 reads the contents of the collected packets, analyzes the contents of the transaction consisting of HTML, WML, XML, etc. from the read packets, and constitutes a requested page. Will be detected.

When there is a data service request from a user, a transaction of an HTML request, a transaction of an image request, a transaction of a sound request, etc. may occur in order to display one page on the terminal. As a result, when a user attempts to view one page on the terminal, one or more transactions may occur, and the quality of service experience experienced by the user is completely terminated from the time when all transactions that constitute one page are started. It will be made up to the time.

Therefore, in order to measure the quality of customer experience, the system according to the present invention detects a transaction forming one page through the transaction content analysis unit, and measures a quality index by using time information extracted for the detected transactions. do.

The service quality indicator generator 250 detects transactions included in one page analyzed by the transaction content analyzer, and uses the time information extracted by the transaction time detector with respect to the detected transactions, The data service quality index is calculated in one page unit.

The call connection manager 210 reads a call setup process and a cancellation process by using the packets collected by the packet collector 200 to determine a start time and an end time for a call for requesting data service. Detects and determines whether the call succeeds or fails by using the detected information, and analyzes the failure reason when the call fails.

The transaction manager 220 determines whether the transaction requested from the terminal succeeds or fails using the packets collected by the packet collector 200, and analyzes the reason for the failure if the transaction fails. . The transaction time detector may collect time information only when the transaction is successful by the transaction manager.

The application statistics collector measures the performance of the terminal, the performance of the service providing server, or the network using the time information collected from the transaction time detector.

The log information storage unit 270 stores and manages information of all packets collected by the packet collector, and stores log information of all calls. At this time, an item stored in the log information storage unit 270 includes TCP transaction log information, TCP session information, and the like.

Although the present invention has been described above with reference to preferred embodiments thereof, this is merely an example and is not intended to limit the present invention, and those skilled in the art do not depart from the essential characteristics of the present invention. It will be appreciated that various modifications and applications which are not illustrated above in the scope are possible. For example, in the exemplary embodiment of the present invention, components such as time information detected by the transaction time detector, a method of determining a transaction constituting one page of the transaction content analyzer, a method of measuring performance of the application statistics collector, and the like may be experienced. Various modifications can be made to efficiently perform quality measurement. And differences related to such modifications and applications should be construed as being included in the scope of the invention defined in the appended claims.

The system for measuring a quality of service in a mobile communication network according to the present invention collects all packets transmitted to and received from a service providing server and analyzes the collected packets to target log information of all calls to all subscribers. Analysis and extract statistical information. As a result, unlike the sampling method analysis, which results in different results depending on the test date, the test site, and the tester's usage pattern, it is possible not only to obtain accurate analysis information but also to generalize customer quality indicators.

In addition, by analyzing the time information for the transfer call, it is possible to automatically generate and provide statistical data, such as by region, by network, by terminal, by service.

In addition, the service quality measurement system according to the present invention automatically detects the time when the transaction is performed, thereby enabling accurate time measurement in microseconds.

In addition, the service quality measurement system according to the present invention stores and manages log information on all calls, and when a service failure occurs or an abnormal quality call is found, by analyzing the log information for the call again, it is possible to determine the exact cause. do. By accurately identifying the cause of the service failure or the cause of the abnormal quality call, the failure of the data service can be prevented in advance.

Claims (8)

A packet collecting unit collecting packets transmitted and received to the service providing server; A transaction time detector for detecting time information generated for each transaction using the packets collected by the packet collector; A transaction content analyzer for analyzing whether the at least one transaction requested from the terminal is included in one page of the requested data service using the packet collected by the packet collector; And Detecting transactions included in one page analyzed by the transaction content analyzer, and using the time information extracted by the transaction time detector with respect to the detected transactions, a data service quality index is determined in units of pages. Service quality index generator And measuring and analyzing data service quality indicators in the mobile communication network automatically. The data service quality measurement system of claim 1, further comprising a call connection manager, wherein the call connection manager starts a time for a call for requesting data service by using a packet collected by the packet collector. And detecting an end time, and analyzing whether the call succeeds or fails by using the detected time information. The system of claim 1, wherein the data quality of service measuring system further comprises a transaction manager, wherein the transaction manager uses a packet collected by the packet collector to determine whether the transaction is successful or failed for a transaction requested from the terminal. Data service quality measurement system, characterized in that for analyzing. 5. The system of claim 4, wherein the transaction time detector collects time information only when the transaction is successful by the transaction manager. The method according to any one of claims 1 to 4, wherein the application statistics collector measures the performance of the terminal, the performance of the service providing server, or the network using the time information collected from the transaction time detector. Data quality measurement system. The method according to any one of claims 1 to 4, wherein the transaction content analysis unit reads the contents of the collected packets, analyzes the contents of the read packets, and detects transactions constituting one page. Data service quality measurement system. The time information collected by the transaction time detection unit includes: a data transmission / reception request time of the terminal, a request completion time, a response start time and a response completion time of the service providing server, and a terminal. At least one of the response times of the data quality of service system. The data service quality measurement system of claim 1, further comprising a log information storage unit, and storing and managing log information of packets collected by the packet collection unit. Quality of Service Measurement System.

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