KR100703234B1 - Method for processing error in wireless telecommunication network system - Google Patents

Abstract

1. TECHNICAL FIELD OF THE INVENTION

The present invention relates to a method for handling a failure in a mobile communication network system and a computer-readable recording medium having recorded thereon a program for realizing the method.

2. The technical problem to be solved by the invention

According to the present invention, when a failure occurs in processing a service message, the service code is initialized (restarted) by recording the start code of the processing message, the subscriber number, and the group number of the service processing logic grouped according to the processing method of the service message in the failure status table. The present invention provides a method of handling a failure in a mobile communication network system and a computer readable recording medium having recorded thereon a program for realizing the method for handling a failure caused by the execution of service processing logic having a group number. has exist.

3. Summary of Solution to Invention

The present invention provides a service processing logic grouping step for grouping service processing logic according to a service message processing scheme; A service message processing step of processing a service message through a corresponding service processing device in response to receiving the service message; As a software failure occurs in the service message processing step, the start code of the service message, the subscriber number, and the group number of the service processing logic are obtained and recorded in the failure situation table so as not to perform the service processing logic of the same group number after initialization. Fault information recording step; A system initialization step of initializing (rebooting) the system; And after the initialization, the service processing apparatus does not perform the service processing logic that does not perform the service processing logic of the same group as the service processing logic in which the software failure occurs , that is, the service processing logic having the same group number as the failed service processing logic . Included.

4. Important uses of the invention

The present invention is used in a mobile communication network system.

Mobile network, fault handling, restart, grouping of service handling logic, fault situation table

Description

Method for processing error in mobile telecommunication network system {Method for processing error in wireless telecommunication network system}             

1 is a configuration diagram of an embodiment of a mobile communication network system to which the present invention is applied.

2 is a flowchart illustrating a failure processing method in a mobile communication network system according to the present invention;

* Explanation of symbols for the main parts of the drawings

11: base station (Node B) 12: RNC (Radio Network Controller)

13: Asynchronous transfer mode switch

14: Gateway Mobile Communication Switching Station (GMSC) 15: 3rd Generation Mobile Phone Switching Station

16: Packet Switching Device (SGSN)

17: Multimedia Message Service Center (MMSC)

18: Equipment Identity Register (EIR)

19: SCP (Service Control Point) 20: AuC (Authentication Center)

21: HLR (Home Location Register) 22: SMP (Service Management Point)

23: IP (Intelligent Peripheral)

24: Short Message Service Center (SMSC)

25: Gateway GPRS Support Node (GGSN)

26: Gateway Mobile Location Center (GMLC)

27: WAP (Wireless Application Protocol) GWS (GateWay System)

28: SS7 (Sub System No.7)

The present invention relates to a method for processing a failure in a mobile communication network system and a computer-readable recording medium recording a program for realizing the method. More particularly, the present invention relates to a start code of a processing message as a failure occurs in processing a service message. By recording the group number of the service processing logic grouped according to the subscriber number and the service message processing method in the failure situation table and initializing (restarting), it is possible to process the failure caused by the execution of the service processing logic having the same group number. And a computer-readable recording medium having recorded thereon a program for realizing a failure in a mobile communication network system.

In general, a mobile communication network system performs major control functions in a mobile communication network such as a home location register (HLR), an authentication center (AUC), an equity identity register (EIR), a mobile positioning center (MPC), and a gateway mobile location center (GMLC). Core network system in charge, intelligent network service control system that performs functions such as creation and management of service logic such as Service Control Point (SCP), Intelligent Peripheral (IP), Service Management Point (SMP), and International Telecommunications Union SS7 (Sub System No. 7) for distributing data traffic from a wired telephone network (PSTN) to a wireless or wired digital broadband network, and Short Message Service Center (SMSC) to handle short message services. System and Multimedia Message Service Center (MMSC) system for processing multimedia message services.

Each of these systems interprets the service messages received from each other, and acquires subscriber information through a database to perform a request for the corresponding service message. That is, the main function of the mobile communication network system is to receive a message from another system, interpret it, obtain subscriber information from its database, and then perform a request for the message.

At this time, each system of the mobile communication network includes a service processing device for processing this according to the type of service message. At this time, each service processing device includes a message receiving module, a message decoding module for decoding a service message received by the message receiving module, and a subscriber database inquiry module, and for processing a requested operation using the message and the subscriber database. Several service processing logics are included.

Each of these systems must be able to continuously provide service in the event of any failure due to the characteristics of mobile communication service. In particular, since the core network system is in charge of the main control function of the entire mobile communication network, it should be possible to provide call service to subscribers even if the system fails. If the system is stopped, the telephone calls of all subscribers managed by the system are not possible, so the reliability of the system is of paramount importance.

Here, looking at the failure handling method in the conventional mobile communication network system, the conventional technology has a problem that must be provided with the same system redundant because each system is duplicated to handle the failure.

On the other hand, there is a method for handling a fault by mounting a fault-tolerant hardware in another conventional technology, which has a problem that can not handle a software fault rather than a hardware fault.

The present invention has been proposed to solve the above problems, and as a failure occurs in processing a service message, a failure code is generated by including a start code of a processing message, a subscriber number, and a group number of service processing logic grouped according to a processing method of a service message. By recording and initializing (restarting), the computer can record a fault handling method and a program for realizing the fault in a mobile communication network system for handling faults caused by the execution of service processing logic having the same group number. The purpose is to provide a recording medium.

In order to achieve the above object, the present invention provides a service processing logic grouping step for grouping service processing logic according to a service message processing scheme; A service message processing step of processing a service message through a corresponding service processing device in response to receiving the service message; As a software failure occurs in the service message processing step, the start code of the service message, the subscriber number, and the group number of the service processing logic are obtained and recorded in the failure situation table so as not to perform the service processing logic of the same group number after initialization. Fault information recording step; A system initialization step of initializing (rebooting) the system; And after the initialization, the service processing apparatus does not perform the service processing logic that does not perform the service processing logic of the same group as the service processing logic in which the software failure occurs , that is, the service processing logic having the same group number as the failed service processing logic . Characterized in that the made up.
The present invention also provides a log file for generating a log file using service message information (start code) and corresponding subscriber information stored in a database so that an operator can easily handle a software failure of the system. Characterized in that further comprises the step.

On the other hand, the present invention, a service processing logic grouping function for grouping the service processing logic, according to the service message processing method, in the mobile communication system having a processor for the software failure processing; A service message processing function for processing through a corresponding service processing device in response to receiving the service message; As a software failure occurs in the service message processing step, the start code of the service message, the subscriber number, and the group number of the service processing logic are obtained and recorded in the failure situation table so as not to perform the service processing logic of the same group number after initialization. Fault information recording function; A system initialization function of initializing (rebooting) the system; And after initialization, the service processing apparatus performs a failure handling function that does not perform the service processing logic of the same group as the service processing logic in which the software failure occurs , that is, the service processing logic having the same group number as the failed service processing logic . A computer readable recording medium having recorded thereon a program for realization is provided.

The present invention also provides a log file for generating a log file using service message information (start code) and corresponding subscriber information stored in a database so that an operator can easily handle a software failure of the system. A computer readable recording medium having recorded thereon a program for further realizing the function is provided.

The present invention is characterized by improving the reliability of the mobile communication system by solving the failure of the system due to software errors.

The present invention records and initializes a service message start code, a subscriber number, and a group number of service processing logic grouped according to a processing method of a service message in a failure situation table as a software failure occurs, thereby reducing and shifting service downtime. It is characterized by increasing the availability of the communication system.

The above objects, features and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a configuration diagram of an embodiment of a mobile communication network system to which the present invention is applied.

As shown in FIG. 1, a mobile communication network system to which the present invention is applied includes an ITU, a core network system that performs main control functions of a mobile communication network system, an intelligent network service control system that performs functions such as generation and management of service logic, and an ITU. Communication system defined by the International Telecommunications Union (SST) for distributing data traffic from a wired telephone network (PSTN) to a wireless or wired digital broadband network. Short Message Service Center (SMSC) 24, Multimedia Message Service Center (MMSC) 17 for processing multimedia message services, Packet Switching Device (SGSN: Serving GPRS Support Node) 16 for relaying packets, mobile Controls a plurality of base stations (Node B) 11, a plurality of base stations (Node B) 11 for accessing a communication terminal and provides radio resources of its own domain. RNC (Radio Network Controller) (12), Asynchronous Transfer Mode (ATM) switch (13) for connecting the high-speed national network and the gateway mobile communication switching center 14, Gateway Mobile Communications Switching Station (GMSC) Services Switching Center (14), 3G Mobile Switching Center (3G MSC) (3G MSC) (15), packet gateway switch for connecting the SS7 (28) and the IP (Internet Protocol) backbone ( GGSN: Gateway GPRS Support Node (25), WAP (Wireless Application Protocol) GWS (GateWay System) 27 to handle wireless application protocols, GMLC (Gateway Mobile) to identify subscriber's location information and connect various services Location Center).

In more detail, first, the core network system includes a home location register (HLR) 21 for managing call processing and location information of a subscriber, an AuC for authentication of a subscriber and encryption of a wireless call interval in a mobile communication network. (Authentication Center) 20, an Equipment Identity Register (EIR) 18 for determining suitability of a terminal in a mobile communication network, and an MPC (Mobile Positioning Center) for collecting and managing location information of a subscriber (terminal) in a mobile communication network. ) / Gateway Mobile Location Center (GMLC).

In addition, the intelligent network system manages the logic and data of the intelligent network service, an SCP (Service Control Point) 19 for controlling all processes of the intelligent network service, and an IP (Intelligent Peripheral) for providing various announcements necessary for the intelligent network service. (23), and a service management point (SMP) 22 for storing and managing subscriber information through interworking with the customer center.
As described above, since the core network system in the mobile communication network is a part that is responsible for the main control function of the entire mobile communication network, when the system is stopped, all subscribers managed by the system are unable to make phone calls. More important than that.
The software takes inputs, performs certain procedures, and produces outputs. The external input required for work in the mobile communication system is a message received from another system and subscriber information stored in a database, and the output is a result message sent to the counterpart system.
The software failure situation of the mobile communication system refers to a situation in which the system receives a message and executes a service processing device and stops due to an error. Therefore, the software failure situation of the mobile communication network system can be defined by the combination of the message being processed, the subscriber data being used, and the service processing logic being performed.
Therefore, in the present invention, a service operation logic group group (SLGrpID: Service Logic Group ID) grouped according to a message operation code (MOC), a subscriber ID (Subscriber ID), and a service message processing method of a failed service message. Is stored in the fault situation table and used to improve the reliability of the system.

2 is a flowchart illustrating a failure handling method in a mobile communication network system according to the present invention.

First, the service processing logic according to the type of service message, that is, the service message processing method is grouped. At this time, the mobile communication network system sets the group number to 0 for the service processing logic of the message for requesting a task that may cause a fatal failure such as a message for requesting subscriber information from the database, and the other service processing logic is a service that is dependent on each other. Group processing logics together and assign group numbers with positive integers to enable independent operation between service processing logic groups. Therefore, if one group number is registered as a failure situation, service processing logic having the same group number is no longer performed.
For example, group number 0 is assigned to service processing logic for a message requesting subscriber information, group number 1 is assigned to service processing logic for a message requesting stock information among additional services, and SMS service processing is performed. Group number 2 is assigned to the logic and group number 3 is assigned to the MMS service processing logic, and service processing logics that are dependent on each other are assigned the same group number, thereby enabling independent operation between service processing logic groups. At this time, the group number can be assigned as a positive integer. For example, when the group number is 0 to 255 (= 2 ⁸ ), the group number is expressed as 8 bits.

Thereafter, the service message received from another system is processed through the corresponding service processing device (201). In this case, since the mobile communication network system includes a plurality of service processing apparatuses for processing the service message according to the service message type, the mobile communication network system processes the service message through the service processing apparatus upon receiving the service message.

Subsequently, as a failure occurs in the process “201”, service processing logic grouped according to a start code (MOP), a subscriber number (SID), and a service message processing method of a service message may not be performed after initialization. The group number SLGrpID is obtained and the failure state of the corresponding service processing logic is recorded in the failure state table (202, 203).

Here, the start code (MOP) and the subscriber number (SID) of the service message can be known when decoding the service message, as is well known. In this case, the subscriber number may include a 2G subscriber identification number (MIN), a 2G subscriber directory number (MDN: Mobile Directory Number), a 3G subscriber identification number (IMSI: International Mobile Subscriber Identity), and a 3G subscriber number (MSISDN: Mobile). Subscriber ISDN Number).
As mentioned above, the service processing logic manages the related things in groups. Among the service processing logics, the service processing logic group number is set to 0 for other tasks that may cause a fatal error in processing a message, such as querying subscriber information in the database. Grouped together so that they can run independently between service processing logic groups, and each group is assigned a group number as a positive integer.
In this way, service processing logics grouped into the same group are not executed when their group number is registered as a failure situation.

In addition, a log file may be generated using message information and corresponding subscriber information stored in a database so that an operator can easily handle a system failure. That is, when a failure occurs, the system can record the combination of (MOP, SID, SLGrpID) in the failure situation table and store the corresponding subscriber data stored in the message and database in the log file to facilitate the error correction. .

The system then notifies the operator of the failure situation and initializes (restarts) the service processing device by itself (204).

After that, the operator can quickly troubleshoot the system by referring to the generated log file.

Since the above process is performed immediately after a failure, the system down time is actually less than 1 second.

In addition, when the system is restarted as a kind of storage device, the system may know service processing logic that should not be processed through the system. That is, when the service processing apparatus is restarted, since the past failure situation is registered in the failure situation table, the service processing logic group in which the error occurs is not executed. Therefore, the system can be prevented from stopping due to the same problem. Of course, when the failure is recovered, by removing the failure situation from the failure situation table, not only the service processing logic in which the failure occurs, but also other service processing logic in the same group operates normally.
As described above, the method of the present invention may be implemented as a program and stored in a recording medium (CD-ROM, RAM, ROM, floppy disk, hard disk, magneto-optical disk, etc.) in a computer-readable form. Since this process can be easily implemented by those skilled in the art will not be described in more detail.

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and various substitutions, modifications, and changes can be made in the art without departing from the technical spirit of the present invention. It will be clear to those of ordinary knowledge.

The present invention as described above is initialized (recording) after recording the start code of the processing message, the subscriber number, and the group number of the service processing logic grouped according to the processing method of the service message as a failure occurs when processing the service message. By doing so, there is an effect that it is possible to handle the failure caused by the service processing logic having the same group number.

Claims (6)

In the fault handling method in a mobile communication network system, A service processing logic grouping step of grouping service processing logic according to a service message processing scheme; A service message processing step of processing a service message through a corresponding service processing device in response to receiving the service message; As a software failure occurs in the service message processing step, the start code of the service message, the subscriber number, and the group number of the service processing logic are obtained and recorded in the failure situation table so as not to perform the service processing logic of the same group number after initialization. Fault information recording step; A system initialization step of initializing (rebooting) the system; And After the initialization, the service processing device does not perform the service processing logic that performs the same service processing logic as the service processing logic of the same group as the failed software processing logic, that is, the service processing logic having the same group number as the failed service processing logic. Failure handling method in a mobile communication network system comprising a. The method of claim 1, Log file generation step that creates a log file using service message information (start code) and corresponding subscriber information stored in the database so that the operator can easily handle the software failure of the system. Failure handling method in a mobile communication network system further comprising. The method according to claim 1 or 2, The service processing logic grouping step is The service processing logic of a message requesting a task that can cause a fatal failure, such as a message requesting subscriber information in the database, sets the group number to 0, and the other service processing logic groups the service processing logics that are dependent on each other. A method for handling a failure in a mobile communication network system, characterized by assigning a group number with a positive integer to enable independent operation between processing logic groups. The method of claim 3, wherein The subscriber number is 2G Mobile Identification Number (MIN), Mobile Directory Number (2DN), Mobile Directory Number (MDN), International Mobile Subscriber Identity (IMSI), and Mobile Subscriber ISDN Number (MSISDN) Disability handling method in a mobile communication network system, characterized in that one. In the mobile communication system having a processor for processing a software failure, A service processing logic grouping function for grouping service processing logic according to a service message processing scheme; A service message processing function for processing through a corresponding service processing device in response to receiving the service message; As a software failure occurs in the service message processing step, the start code of the service message, the subscriber number, and the group number of the service processing logic are obtained and recorded in the failure situation table so as not to perform the service processing logic of the same group number after initialization. Fault information recording function; A system initialization function of initializing (rebooting) the system; And After initialization, the service processing device does not perform the service processing logic that performs the software processing failure in the same group as the service processing logic of the entire group , that is, the service processing logic having the same group number as the failed service processing logic. A computer-readable recording medium having recorded thereon a program for realizing this. The method of claim 5, Log file generation function that creates a log file using service message information (start code) and corresponding subscriber information stored in the database so that the operator can easily handle the software failure of the system. A computer-readable recording medium that records a program for further realization.

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