KR100656076B1 - System and Method for Managing and Providing Information on Sequential Quality of Service for Use in Communication Networks - Google Patents

Abstract

The present invention provides a service availability and network quality (SANQ) system that manages and provides sequential quality of service (IP) network service information. In the present invention, a packet passing along a network link from a terminal is copied in real time and packet filtering is performed. SANQ agents that detect packets based on rules to measure and transmit sequential quality of service information. Manage operations with one or more SANQ agents, process data collected by one or more SANQ agents and QoS servers that work with external systems. The present invention relates to a system and method for managing and providing sequential quality of service (QoS) information in a communication network comprising a database server for statistically managing and integrated management. According to the present invention, since the quality factor from the point in time of using the service to the end of the service can be managed in real time, there is a big difference from the quality control using statistical elements extracted from the network equipment. In the future, it is possible to provide useful customer data to the customer management system.

QoS, Quality Indicator (QI), Wireless Internet, CDMA, WCDMA, Quality of Service, Network Performance, SLA, OSS

Description

System and Method for Managing and Providing Information on Sequential Quality of Service for Use in Communication Networks}

1 is a block diagram schematically showing the configuration of a SANQ system according to an embodiment of the present invention;

2 is a block diagram showing in detail the hardware configuration and data flow of the SANQ agent, QoS viewer, QoS server and database server according to an embodiment of the present invention;

3 is a flowchart briefly illustrating a process of managing and providing sequential service quality information and call trace information according to an exemplary embodiment of the present invention;

4A and 4B are flowcharts illustrating a process of measuring sequential service quality indicators according to a preferred embodiment of the present invention;

5 is a diagram showing a list of quality indicators (QIs) calculated and managed according to a preferred embodiment of the present invention;

6 is a flowchart illustrating a process of identifying a cause of a quality abnormality using a SANQ system according to an exemplary embodiment of the present invention.

FIG. 7 is a diagram illustrating a location in a CDMA network of a SANQ system 100 according to an embodiment of the present invention.

8 is a diagram illustrating a location in a WCDMA network of a SANQ system 100 according to a preferred embodiment of the present invention.

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

100: SANQ system 110: SANQ agent

125: QoS Viewer

130: QoS server 140: database server

150: database 200: probing device

201: Tapper 202: Filter

210: gathering unit 220: hub device

221: data hub 222: control hub

230: QoS Analyzer

The present invention relates to a system and method for managing and providing sequential quality of service (Sequential QoS) information in a communication network. More particularly, the present invention relates to an electrical scheme of a packet passing along a network link from a terminal in real time. The present invention relates to a system and method for providing QoS information by processing and managing a sequential quality indicator (QI) for each user by copying through a packet, and detecting, processing, and analyzing a packet through a packet filtering rule.

Today's TCP / IP networks suffer from frequent bottlenecks and congestion due to the explosive growth of Internet usage and traffic, which is causing the problems of poor quality of network services. In addition, indiscriminate service congestion caused by the emergence of various web-based applications does not guarantee stable services for core tasks.

As network utilization increases, the demand for a stable network service foundation is further heightened, and service operators are in urgent need of efficient traffic control and bandwidth management for optimal network operation and management.

To solve these problems, until now, there has been no other way than to increase the bandwidth of the circuit. However, such line additions have to bear high costs and are limited in addressing the constantly increasing traffic problem. Not only is Internet traffic quantitatively increasing, but various changes in its nature are also taking place, and change factors must be considered to meet new demands. However, the current best effort network has a problem in that it cannot fundamentally guarantee the quality of a user's important service because it cannot prevent bandwidth monopoly of specific traffic.

Recently, the QoS (Quality of Service) solution has emerged as a solution for various user demands for efficient service quality and efficient network operation, and has become an essential core element of the network, not a temporary alternative to solve the current network problem. Doing.

QoS solution refers to various technologies and concepts that systematically manage traffic and bandwidth in a limited bandwidth by differentiating service levels provided to users or applications according to importance. The QoS solution does not simply increase the network bandwidth by increasing the limited bandwidth, but effectively monitors and analyzes the bandwidth and the traffic generated therein to effectively configure and manage the policy-based network and improve the network management. It is.

In a typical QoS solution, in order to collect QoS information, a special dedicated device is installed in a network device such as a gateway of a network, or installed in front of a server, so that the average delay in network devices such as a gateway and the average amount of self change in a group of cells. QoS information is grasped by measuring information such as cell loss and transmission error rate.

However, it is difficult to collect accurate information because most of the problems in the network operation process are caused by network congestion rather than defects of network equipment. Therefore, a QoS solution centered on users is required, not quality control using statistical elements extracted from network equipment.

In order to solve the above problems, the present invention provides a sequential service for each user by copying a packet passing along a network link from a terminal in an electrical manner in real time and detecting, processing and analyzing the packet through a packet filtering rule. It is an object of the present invention to provide a system and method for providing QoS information by processing and managing a quality indicator (QI).

According to a first object of the present invention, in a Service Availability and Network Quality (SANQ) system that manages and provides sequential quality of service (IP) information of an IP network service, a packet passing along a network link from a terminal is transmitted. SANQ agent that copies in real time and detects the packet based on packet filtering rules to measure and transmit the sequential quality of service information. Provided is a system for managing and providing sequential quality of service (QoS) information in a communication network, comprising a server and a database server for processing and statistically processing data collected by one or more of the SANQ agent.

According to a second object of the present invention, a packet included in a Service Availability and Network Quality (SANQ) system that manages and provides sequential quality of service (IP) service information of an IP network service is transmitted from a terminal along a network link. In the SANQ agent for measuring and transmitting the sequential quality of service information by using, the packet is copied in an electrical manner in real time, and the packet through the packet filtering rules set for the measurement of the sequential quality of service information Probing device for detecting a gathering unit and the gathering unit for receiving the packet from the probing device, and extracts the packet data necessary for sequential quality indicator (QI) calculation of the data contained in the packet Receive and process the packet data from the Then, it provides a SANQ agent for measuring and transmitting the sequential quality of service information, characterized in that it comprises a QoS analyzer for calculating the sequential quality of service indicator and transmits to the database server.

According to a third object of the present invention, the sequential service quality information is managed and provided using a service availability and network quality (SANQ) system that manages sequential quality of service information of an IP network service. A method of providing a QoS, comprising the steps of: (a) copying a packet passing along a network link from a terminal in an electrical manner in real time, and detecting the packet through a packet filtering rule set for measuring the sequential quality of service information (b) extracting data necessary for sequential quality indicator (QI) calculation of the terminal from the detected packet (c) calculating and storing sequential quality of service indicator of the terminal using the data And statistically processing and managing the data; and (d) using the statistical processing results. And it provides the sequence of quality of service information managing sequence of quality of service (QoS) information in a communication network comprising the steps of providing a QoS service, and providing method.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First of all, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are used as much as possible even if displayed on different drawings. In addition, in describing the present invention, when it is determined that the detailed description of the related well-known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

Sequential Quality of Service information is quality information of a series of processes including a session from when a service user starts to receive a service to when it ends. Due to the sequential service quality provision, it is possible to manage in real time the quality factor from the point of starting to use the service from the point of view of the service user.

1 is a block diagram schematically showing the configuration of a SANQ system 100 according to a preferred embodiment of the present invention.

The service availability and network quality (SANQ) system 100 according to the preferred embodiment of the present invention includes a SANQ agent 110, a QoS viewer 125, a QoS server 130, a database server 140, a database 150, and the like. It includes.

The SANQ system 100 is a system that manages and provides sequential QoS information of a wireless Internet service provided by a mobile communication service. The system can be applied to wired Internet Protocol (IP) networks in the same shape.

The SANQ agent 110 functions to copy packets passing along the network link from the terminal in real time, detect packets based on packet filtering rules, and measure and transmit sequential service quality information.

The QoS viewer 125 graphically processes the sequential service quality information of each user in an easy-to-understand form so that an operator can easily monitor the information, and provides the GUI in the form of a graphical user interface (GUI).

QoS server 130 manages the operation of one or more SANQ agents 110. It also provides very useful information in connection with service level agreement (SLA) management system or network operation resource system (OSS) through an open interface. The database server 140 integrates and manages the data collected by the SANQ system 100 and the database 150 is a space for storing such data.

2 is a block diagram showing in detail the hardware configuration and the flow of data of the SANQ agent 110, QoS viewer 125, QoS server 130 and database server 140 in accordance with a preferred embodiment of the present invention.

The SANQ agent 110 according to the preferred embodiment of the present invention includes a probing device 200, a gathering unit 210, a hub device 220, a QoS analyzer 230, and the like.

The probing device 200 according to a preferred embodiment of the present invention includes a tapper 201 and a filter 202, in which tapper 201 posts a packet passing along a network link from a terminal in real time. Copying is performed in a typical manner, and the filter 202 detects the packet through a packet filtering rule set for the sequential measurement of the quality of service information. At this time, the filter 202 performs a user session management function on the detected packet. The filter 202 also provides the ability to add / modify / delete packet filtering rules in real time during operation.

The gathering unit 210 according to the preferred embodiment of the present invention receives a packet necessary for calculating a quality indicator (QI: QI) for a service from the probing device 200 in real time, and then analyzes each protocol and calculates the QI. Only necessary packet data is extracted and transmitted to the QoS analyzer 230 through the hub device 220. In particular, when the packet received from the probing device 200 is an HTTP request message or an RTSP DESCRIBE request message, user information is extracted and transmitted to the QoS analyzer 230 in addition to data required for QI calculation. Here, the user information includes a unique user equipment (UE) identifier (Client ID, MIN), a terminal manufacturer, and a terminal model name. In addition, the gathering unit 210 performs a reassembly function on the packet in which IP fragmentation and TCP segmentation occur. In addition, when transmitting the data from the gathering unit 210 to the QoS analyzer 230, when there are several QoS analyzers 230, the load balancing function is applied to the QoS analyzer 230 to transmit the divided data to the various QoS analyzers 230.

The hub device 220 according to a preferred embodiment of the present invention includes a data hub 221 and a control hub 222. The data hub 221 serves as a relay for high-speed data transfer between the gathering unit 210 and the QoS analyzer 230, and the control hub 222 provides data and control information between the components of the SANQ system 100. It serves as a transmitting and receiving relay device.

The QoS analyzer 230 according to a preferred embodiment of the present invention processes the packet transmitted through the gathering unit 210, calculates the QI of each user in real time, and transmits it to the database server 140. Here, the QIs include QIs divided into a service access quality, a service session quality, and a service closure quality, which will be described later.

In addition, the QoS analyzer 230 performs a separate user session management function for all user sessions. To this end, the user session is classified based on a dynamic IP assigned to a terminal of a service user and a unique user equipment identifier (Client ID, MIN) recorded in a packet transmitted through the gathering unit 210. In addition, the QoS analyzer 230 real-time all the transmission information (control information and key data related to service access / use / termination) between the terminal and the components of the network (for example, a specific server) for a particular user in real time. Extracts and performs a call trace function to notify the operator of the SANQ system 100 through the QoS viewer 125 to be described later. In addition, the QoS analyzer 230 informs the operator of the SANQ system 100 of the service alarm information set for each user for the specific user through the QoS viewer 125.

The QoS server 130 according to the preferred embodiment of the present invention manages the SANQ agent 110. That is, the QoS server 130 may start the system by transmitting an initialization command to the probing device 200, the gathering unit 210, and the QoS analyzer 230 constituting the SANQ agent 110. You can change the settings and shut down the system by sending a shutdown command. And, QoS server 130 brings the necessary information in conjunction with the elements constituting the network. The necessary information includes a terminal identifier set (MIN, Client ID, IMSI, MDN) and regional information. In addition, the QoS server 130 may provide very useful information through an open interface in connection with a service level agreement (SLA) management system or a network operation resource system (OSS).

The database server 140 calculates a key quality indicator (KQI) and a quality of service based on the user-specific QI information delivered by the QoS analyzer 230. In addition, this information is statistically processed hourly, daily, and monthly. The database server 140 may include a statistics database (not shown) that stores statistics for each QI and KQI, a session database table (not shown) that stores session information and QI values for each session, service, KQI, QI that stores alarm message database table (not shown), QI, KQI, basic setting information and history information for service to inform the operator and customer when critical / major / minor / normal alarm occurs by QI. And a modular database such as a threshold database table (not shown), an organization and authority database table (not shown) that stores basic information of an operator, and information about an operating organization and authority. Among them, the session database table (not shown) includes a client ID of a terminal, a mobile identification number of a terminal, a quality of service number, a session number, a service type, a session start time, a session end time, and whether the service is normally terminated. Etc. are included.

3 is a flowchart briefly illustrating a process of managing and providing sequential service quality information and call trace information according to an exemplary embodiment of the present invention.

First, the packet passing along the network link from the terminal is copied in real time by the electrical method in the tapper 201 of the probing device 200, and the filter 202 detects the packet through a packet filtering rule (S300). The packet detected in this way is subjected to a preprocessing process in the gathering unit 210. The reason for the preprocessing in the gathering unit 210 is to divide the load with the QoS analyzer 230 to quickly and efficiently process a large amount of packets.

The gathering unit 210 extracts only data necessary for QI calculation for each protocol after reassembly of fragmented packets of IP and TCP (S302). Thereafter, the QoS analyzer 230 calculates the QI of each user from the processing result of the gathering unit 210 (S304), and stores the calculated QI data in the database 150 of the database server 140 (S306).

Meanwhile, in parallel with steps S304 and S306, the QoS analyzer 230 performs a call trace processing function on a specific user terminal requested from the QoS server 130 (S308), and then a session that is a call trace result. Information is stored in the database 150 of the database server 140 (S310). The session information may include a client ID of the terminal, a mobile identification number (MIN) of the terminal, a sequential quality of service number, a session number, a service type, a session start time, a session end time, and whether the service is normally terminated. At this time, the QoS server 130 interoperates with an external network element in order to request the QoS analyzer 230 to perform a call trace for a specific user terminal (MIN, Client ID). , IMSI, MDN) is obtained and provided to the QoS analyzer 130.

The database server 140 calculates the KQI and the quality of service based on the QI data and the session information stored in the database 150, and processes the minute, hourly, daily, and monthly statistics according to a predetermined time period (S312). The QoS viewer 125 processes the processing result of the received service quality indicators of each user graphically and provides the GUI in an easy-to-understand GUI form (S314). In order to be used as more accurate information for each terminal, such processing results are divided and provided based on the base station unit, the type of terminal and the service type. At this time, all of these results are provided by being mapped onto a base map unit map using the subscriber's location information.

The quality results measured and analyzed by the SANQ system 100 are displayed on the GUI screen using the QoS viewer 125. At this time, the operator can see these results after logging in through the WEB.

The measured and analyzed quality results are displayed in detail step by step. In other words, the measurement result is basically displayed in detail step by step in terms of local and network components based on MAP. In the case of regional perspectives, the initial screen displays the quality of each region divided on the map of the whole country, and if you want to know the service quality of a specific region in detail, select the specific region and the quality of the specific region will be restored. Displayed in detail. In other words, it is possible to zoom in / out around the area. In the network component point of view, as in the above-described local point of view, the quality of service is extended from the upper network element to the lower network element level. For example, it may be indicated by initial SGSN quality, RNC quality, and Node-B quality.

Meanwhile, the measured and analyzed quality result may be displayed differently according to the grade of the logged in operator. In other words, the results of the measurement are displayed differently depending on the operator's interests. For example, the senior executive may be interested in national quality. For an engineer, this could be the quality of a particular area as the first page displayed after login. In other words, by dividing the level of each operator according to the operator's interests and authorization, the first page displayed when logging into the web can be set differently, and the right to access other pages or other items can be restricted. have.

On the other hand, the measured and analyzed quality results are displayed by mapping them to the MAP. In the past, when information required for MAP is displayed, the location of the base station is generally displayed based on the administrative area, and the coverage of the base station is assumed to be concentric or hexagonal. In this case, since the coverage of the actual base station is not taken into account, the quality analysis or understanding is poor. However, in the SANQ system 100 according to the preferred embodiment of the present invention, when displaying the quality information on the MAP, the actual coverage information is received and used to indicate the coverage of the actual base station. In this case, as the information input source, the coverage result analyzed by the mobile communication operator or the result of the wireless network design tool (for example, Cell PLAN) may be used. By doing so, by displaying the location information of the actual subscriber on the MAP and grasping the extent of the actual coverage of the subscriber, the relationship between the quality information and the wireless network can be smoothly mapped and more efficient analysis can be performed.

4A and 4B are flowcharts illustrating a process of measuring sequential service quality indicators according to an exemplary embodiment of the present invention.

In FIG. 4A and FIG. 4B, the process of measuring the sequential service quality index is divided into two cases according to the call processing characteristics of the network to be used.

As shown in FIG. 4A and FIG. 4B, the quality of one service is a three-step measurement of service access quality / service session quality / service closure quality. When the service is divided into several processes, the quality is measured for each service.

FIG. 4A illustrates a case of a code division multiple access (CDMA) network, in which one IP address is allocated after a Point to Point Protocol (PPP) setup to use a service having a different characteristic. 4b is a case of a wideband code division multiple access (WCDMA) network, in which a new PDP activation and a new IP address are assigned every time a service having a different nature is used.

In the case of FIG. 4A, an example of using a WAP (Wireless Application Protocol) service after PPP is set up, first, after PPP is set up (S400), accessing a WAP gateway to receive WAP service ( The service access quality, which is the quality of the step of accessing), is measured first (S402). Next, the service session quality which is the quality of the step of using the WAP service is measured (S404). Finally, the service end quality, which is the step of exiting the WAP service, is measured (S406).

In the example of using the Video On Demand (VOD) download service selected from the WAP menu, the SANQ system 100 first measures the service access quality, which is the quality of accessing the download server in order to receive the download service, and then downloads it. After measuring the service session quality, which is the quality of receiving the service, and finally, the service termination quality, which is a step of disconnecting from the download server to complete the download service. Later, if you do not use any other service, you will turn off PPP and completely exit from the wireless Internet service.

In the case of FIG. 4B, in the case of moving a service, the steps of ending PDP activation (PDP deactivation (S412, S416)) and setting the PDP activation (S410, S414) for each individual service are added. Only there is a difference, the process of measuring the sequential quality of service that is the actual management target in the SANQ system 100 is the same as FIG. 4A.

5 is a diagram illustrating a list of quality indicators (QIs) calculated and managed according to a preferred embodiment of the present invention.

The QoS analyzer 230 calculates and manages the QI of FIG. 5 in real time for all users who are currently connected to the wireless Internet service of the present invention, and the database server 140 uses the service type of FIG. 5 based on the QI. Calculate and manage KQI accordingly. To this end, the database server 140 stores and manages the database 150 for each quality indicator measurement unit of each user.

The user of the wireless Internet service of the present invention accesses the wireless Internet in order to use various services provided by the service, and then downloads the top menu page using the WAP service to the terminal. The user selects a desired detailed service while performing navigation based on the top menu page downloaded to the terminal. From then on, the user uses the streaming or downloading service of the content according to the selected service. After that, the wireless Internet service is terminated, or after selecting a menu using a WAP service, a streaming or download service of other content is used.

The service quality in FIG. 5 is divided into a WAP service quality 500, a download service quality 502, and a streaming service quality 504, and each service quality is calculated using a KQI 506 corresponding to each service. The KQI 506 is divided into a service access quality, a service session quality, and a service closure quality, and each KQI 506 uses a QI 508. Is calculated.

In the QI 508 of FIG. 5, the service access quality includes a process of authenticating and negotiating a session by connecting to a corresponding server or gateway in order to actually receive a service, and the detailed items include a connection success ratio and a connection time. Time), Connect Retry Count, Session Negotiation Time, and Session Negotiation Success Ratio. The service termination quality includes a process of disconnecting from a corresponding server or gateway in order to terminate a service, and detailed items are a close success ratio and a close time. In addition, the service session quality includes a process of actually using the service, and the details of the WAP service session quality 500 include page download time, page download throughput, and page download success rate. Ratio) and Page Download Retry Count. Details of the download service session quality 502 include a contents download success ratio, contents download throughput, contents download retry count, and the like. Details of streaming service session quality (504) include Initial Buffering Time, Buffer Under Flow Count, Streaming Interruption Count / Duration / Interval, Buffer Buffer Status, Packet Delay Jitter, Packet Missing Ratio, Packet Header Error Ratio, Contents Streaming Success Ratio, Contents Streaming Throughput ). The details of streaming service session quality 504 are shown as one, but in practice are measured and managed for voice and video respectively.

In order to provide sequential service quality information to a terminal receiving the WAP service, the download service, and the streaming service, user related information of the terminal should be used. The user-related information of the terminal may be Client ID, terminal number (MIN, MDN, MSISDN, IMSI), terminal model, terminal manufacturer and region (location) information. The user related information of the terminal is obtained in two ways depending on the implementation manner of the terminal.

In the first method, a user agent field is used to directly read user information of a terminal from a header of an HTTP request message or an RTSP DESCRIBE request message.

In the second method, a user agent profile is used to extract necessary information from a header of an HTTP request message or an RTSP DESCRIBE request message from packets sent by the terminal, and includes Client ID, Terminal model, terminal manufacturer, and region (location) information are obtained by reading directly from the header of the HTTP request message or RTSP DESCRIBE request message, and the terminal number (MDN, MSISDN, IMSI) is obtained from the header of the HTTP request message or RTSP DESCRIBE request message This method reads "Client ID" from a specific field, provides "Client ID" information in conjunction with a mobile carrier, and brings terminal number information. In this case, on the contrary, the "Client ID" may be obtained using the terminal number through interworking with the mobile communication company.

Here, in the method using the user agent field, the SANQ agent 110 reads and obtains user related information of the terminal directly. Meanwhile, in the method using the user agent profile, the client ID, the terminal model, the terminal manufacturer, the region (location) information, etc. among the user related information of the terminal are obtained from the SANQ agent 110, but the "Client ID" information is predefined. Through the established protocol, the QoS server 130 and the mobile communication company are obtained in cooperation.

On the other hand, SANQ system 100 according to a preferred embodiment of the present invention can be linked to the active test (Active Test) equipment. Active test equipment is a device for measuring quality parameters such as radio wave environment by generating a test call using a real terminal for the purpose of quality measurement and engineering.It is a portable drive test including DM (Diagnostic Monitor). Drive Test) It can be divided into fixed equipment installed in equipment and base station. In the SANQ system 100 according to the preferred embodiment of the present invention, the measurement results of the active test equipment are received through a storage medium such as a file or a wired / wireless input interface, and are analyzed and displayed simultaneously with the measurement results of the SANQ system 100. Enable quality analysis Here, the measurement results of the SANQ system 100 and the active test equipment are time-synchronized using the respective time-stamps, and the position-synchronization is performed using the respective position information. Eventually, the SANQ system 100 and the active test equipment produce quality measurement data from different viewpoints with respect to the same terminal number, and analyze them in synchronization with time and location information, and in the GUI of the SANQ system 100 which is the same analysis plane. Display enables efficient quality analysis.

On the other hand, using the SANQ system 100 according to a preferred embodiment of the present invention, it is possible to monitor the network traffic state. The traffic state of the core network can be determined by the total amount of packets transmitted / received by the GGSN at the rear end of the GGSN monitored by the SANQ system 100, the amount of packets transmitted and received by each content server, the amount of packets transmitted and received by each service, and the number of users by each service. The traffic condition of is possible by knowing the current number of users of the base station where the subscriber is monitored in the SANQ system 100.

6 is a flowchart illustrating a process of identifying a cause of quality abnormality using the SANQ system 100 according to an exemplary embodiment of the present invention.

To determine the cause of the quality abnormality using the SANQ system 100 according to the preferred embodiment of the present invention, it is preferable to use a top-down method as shown in FIG. 6. That is, the Top-Down method of the SANQ system 100 is a method of grasping the result of quality monitoring from the service point of view and descending step by step in detail.

As shown in FIG. 6, when a quality abnormality is detected while monitoring the service quality (S600), the SANQ system 100 first checks whether the quality abnormality is a local problem or a national problem (S602).

If it is determined that the quality of service is bad nationwide, is it a problem of the corresponding Gateway GPRS Supporting Node (GGSN) (S604), is it a problem that occurs only in a special terminal (S606), or is it a problem that occurs in a large load situation (S608) ), Or if the problem occurs under normal load conditions (S610) to analyze the cause. If the problem is local, is it a problem with a Serving GPRS Supporting Node (SGSN) (S612), or is it a problem with a Radio Network Controller (RNC) that is a subcomponent of SGSN (S614), or a Node- subcomponent of RNC. The cause is analyzed according to whether it is a problem of B (base station) (S616).

7 is a diagram illustrating a position in a CDMA network of the SANQ system 100 according to an embodiment of the present invention.

According to the preferred embodiment of the present invention, the SANQ system 100 is located behind the Packet Data Serving Node (PDSN) in a Code Division Multiple Access (CDMA) network as shown in FIG. 7 and transmits packets passing through the corresponding link in real time. It copies through the electrical method, detects packets according to a given packet filtering rule, and measures and manages sequential service quality information for each service user. In FIG. 7, other components except for the SANQ system 100 perform functions similar to those of the general CDMA network, and thus description thereof will be omitted.

8 is a diagram illustrating a location in a WCDMA network of a SANQ system 100 according to a preferred embodiment of the present invention.

According to the preferred embodiment of the present invention, the SANQ system 100 is located behind a Gateway GPRS Support Node (GGSN) in a wideband CDMA (WCDMA) network as shown in FIG. 8 and electrically transmits packets passing through a corresponding link in real time. Copies through and detects packets based on a given packet filtering rule and measures and manages sequential service quality information for each service user. In FIG. 8, other components except for the SANQ system 100 perform functions similar to those of a general WCDMA network, and thus description thereof will be omitted.

The above description is merely illustrative of the present invention, and those skilled in the art to which the present invention pertains may various modifications without departing from the essential characteristics of the present invention. Accordingly, the embodiments disclosed herein are not intended to limit the present invention but to describe the present invention, and the spirit and scope of the present invention are not limited by these embodiments. It is intended that the scope of the invention be interpreted by the following claims, and that all descriptions within the scope equivalent thereto shall be construed as being included in the scope of the present invention.

As described above, according to the present invention, since the quality factor from the point of use of the service to the end of the service can be managed in real time, the quality control using the statistical element extracted from the network equipment is performed. There is a big difference, and the advantage is that it can provide useful customer data to the customer management system in the future. In addition, service quality is sequentially analyzed in wired and wireless IP networks, and the quality of all users is measured and displayed graphically according to location, service type and terminal type, and service level agreement (SLA) through an open interface. In conjunction with the management system or network operation support system (OSS) it can provide very useful information.

In addition, the SANQ system according to the preferred embodiment of the present invention, by interlocking with the active test equipment, calculates the quality measurement data from different viewpoints with respect to the same terminal number, and analyzes them in synchronization with the time and location information, The advantage of displaying in the GUI of the SANQ system is that it enables efficient quality analysis.

Claims (29)

In a service availability and network quality (SANQ) system that manages and provides sequential quality of service information of an IP network service, Copy the packet passing along the network link from the terminal in real time and detect the packet based on packet filtering rules, extract the quality of service indicator (QI) based on the packet, and service based on the quality of service indicator (QI) A KQI composed of Service Access Quality, Service Session Quality, and Service Closure Quality is calculated and based on the KQI, each of the WAP service quality, download service quality, and streaming service quality is calculated. A SANQ agent for measuring and transmitting sequential quality of service information of a; A Quality of Service (QoS) server that manages operations with one or more of the SANQ agents and interacts with external systems; And A system for managing and providing sequential service quality information in a communication network, characterized in that it comprises a database server for processing and statistically processing data collected by one or more of the SANQ agent. The method of claim 1, A system for managing and providing sequential service quality information in a communication network, further comprising a QoS viewer that graphically processes sequential service quality information integrated in the database server and provides a GUI (Graphic User Interface). . The method of claim 2, The sequential quality of service information is managed and provided in a communication network, characterized in that it is displayed step by step by region, network components by using the location information of the subscriber or distinguished by the operator of the SANQ system. System. The method of claim 3, wherein The sequential display of the quality of service information is based on the MAP of each base station, and the coverage analysis result of the mobile communication operator or the coverage information of the wireless network design tool is used to indicate the coverage of the base station. A system for managing and providing sequential service quality information in a communication network. The method of claim 1, The QoS server or the SANQ agent provides the sequential service quality information in connection with a service level agreement (SLA) or an operating resource system (OSS) management scheme through an open interface. System to manage and provide. The method of claim 1, The SANQ agent, A probing device for copying the packet in an electrical manner in real time and detecting the packet through the packet filtering rule set for measuring the sequential quality of service information; A gathering unit which receives the packet from the probing device and extracts packet data necessary for calculating the quality indicator (QI) among data included in the packet, and And a QoS analyzer which receives and processes the packet data from the gathering unit, calculates the quality index, and transmits the quality indicator to the database server. The method of claim 6, The database server, A statistical database for processing and statistically processing the result of the QoS analyzer and storing the result for each statistical unit of the quality index; A session database for storing session information and the quality indicators for each session, and System for managing and providing sequential service quality information in a communication network, characterized in that it comprises one or more of the organization and authority database for storing the basic information of the operator and information on the operating organization and authority. The method of claim 7, wherein The session information includes at least one of a client ID of a terminal, a mobile identification number (MIN) of the terminal, the sequential quality of service number, a session number, a service type, a session start time, a session end time, and whether the service is normally terminated. System for managing and providing sequential service quality information in a communication network, characterized in that. The method of claim 1, The sequential service quality information is a system for managing and providing sequential service quality information in a communication network, characterized in that the quality information for a series of processes from when the service user starts to receive the service to the end. . The method of claim 9, The client ID, the terminal number, the terminal model, the terminal manufacturer, the region information, and / or the location information, which are related information of the service user, may be acquired by using a user agent field or a user agent profile. A system for managing and providing sequential service quality information in a communication network. The method of claim 1, The SANQ system is a system for managing and providing sequential service quality information in a communication network, characterized in that to provide the service quality information in conjunction with active test equipment for measuring the quality parameters of the radio wave environment using a real terminal. The service quality and service information of the IP network service is included in a service availability and network quality (SANQ) system that manages and provides information on the sequential quality of service using a packet passing along a network link from a terminal. For the SANQ agent to measure and transmit, A probing device for copying the packet in real time in an electrical manner and detecting the packet through a packet filtering rule set for the measurement of the sequential quality of service information; A gathering unit which receives the packet from the probing device and extracts packet data necessary for sequential quality indicator (QI) calculation among data included in the packet; And Receiving the packet data from the gathering unit, extracting a quality of service indicator (QI) based on the packet, and based on the quality of service indicator (QI), service access quality (Service Access Quality), service session quality (Service Session) A KQI comprising a Quality) and a Service Closure Quality, and calculating a WAP service quality, a download service quality, and a streaming service quality based on the KQI, and transmitting the KQI to a database server. SANQ agent that measures and sends sequential quality of service information. delete In the QoS providing method for managing and providing the sequential quality of service information using a service availability and network quality (SANQ) system for managing sequential quality of service information of the IP network service, (a) copying a packet passing along a network link from a terminal in an electrical manner in real time, and detecting the packet through a packet filtering rule set for measuring the sequential quality of service information; (b) extracting data necessary for sequential quality indicator (QI) calculation of the terminal from the detected packet; (c) calculating, storing, statistically processing, and managing sequential service quality indicators of the terminal using the data; And (d) calculating a KQI composed of Service Access Quality, Service Session Quality and Service Closure Quality based on the QI, and based on the KQI And providing sequential quality of service information for each of the WAP quality of service, download quality of service, and streaming quality of service. 16. A method for providing QoS for managing and providing sequential quality of service (QoS) information in a communication network. delete The method of claim 14, The service access quality is a quality indicator for measuring the quality of service in the process of the user of the service accessing the server or gateway to authenticate the service and negotiating a session to receive the service. QoS) A method of providing QoS that manages and provides information. The method of claim 14, The quality of service access provides QoS for managing and providing sequential quality of service (QoS) information in a communication network, characterized in that one or more of the success rate, the access time, the number of access retries, the session negotiation time and the session negotiation success rate Way. The method of claim 14, The service session quality is a sequential service in a communication network, characterized in that the user of the service selects the detailed service of the service and then the selected detailed service is a quality index for measuring the quality of the detailed service when the terminal is provided. QoS provisioning method for managing and providing quality (QoS) information. The method of claim 14, The service session quality includes page download time, page download speed, page download success rate, page download retry count, content download success rate, content download rate, content download retry count, initial buffering time, buffer underflow count, streaming interruption count Manage and provide sequential quality of service (QoS) information in a communication network, including one or more of / period / interval, buffer status, packet delay jitter, packet loss rate, packet header error rate, content streaming success rate, and content streaming rate. QoS provisioning method. The method of claim 14, QoS of managing and providing sequential quality of service (QoS) information in a communication network, characterized in that the end quality of the service is a quality indicator for measuring the quality of service in the process of disconnecting from the server or gateway to terminate the service. How to Provide. The method of claim 14, And the service end quality comprises one or more of a termination success rate and an end time. The method of claim 14, In step (d), The sequential service quality information is processed in a graphic form to provide a GUI (Graphic User Interface) in the form of a QoS providing method for managing and providing sequential quality of service (QoS) information in a communication network. The method of claim 14, The QoS providing method manages and provides sequential quality of service (QoS) information in a communication network, which is performed by sequentially monitoring a series of processes from the time when the service user starts to receive the service to the end. QoS provisioning method. The method of claim 23, wherein The client ID, the terminal number, the terminal model, the terminal manufacturer, the region information, and / or the location information, which are related information of the service user, are obtained by using a user agent field or a user agent profile. QoS providing method for managing and providing sequential quality of service (QoS) information in a communication network characterized in that. The method of claim 14, The sequential quality of service information may be provided in connection with a service level agreement (SLA) or an operating resource system (OSS) management system through an open interface. How to provide QoS. The method of claim 14, The sequential quality of service information is sequentially displayed by region or network component using the location information of the subscriber or is classified and displayed by the operator of the SANQ system. How to provide and manage QoS. The method of claim 26, The sequential display of the quality of service information is based on the MAP of each base station, and the coverage analysis result of the mobile communication operator or the coverage information of the wireless network design tool is used to indicate the coverage of the base station. QoS providing method for managing and providing sequential quality of service (QoS) information in a communication network. The method of claim 14, The SANQ system manages and provides sequential quality of service (QoS) information in a communication network, in which the service quality information is provided in connection with an active test equipment that measures a quality parameter of a radio wave environment using an actual terminal. How to Provide. On a server connected to the IP network, (a) copying a packet passing along a network link from a terminal in an electrical manner in real time, and detecting the packet through a packet filtering rule set for measuring the sequential quality of service information; (b) extracting data necessary for sequential quality indicator (QI) calculation of the terminal from the detected packet; (c) calculating a KQI composed of Service Access Quality, Service Session Quality, and Service Closure Quality based on the QI, and based on the KQI Calculating, storing, and statistically managing WAP service quality, download service quality, and streaming service quality; And (d) a recording medium having recorded thereon a program for executing the step of providing the sequential quality of service information using the statistical processing result.

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