KR101567410B1 - call processing server - Google Patents

Abstract

The present invention relates to a call processing server, a mobile communication system using the same, and a method of restarting the mobile communication system. According to the related art, the subscriber registration information is initialized when the mobile communication system is restarted. According to the present invention, it is possible to initialize the system while keeping the subscriber information at the time of restarting the mobile communication system, so that the overload that may occur due to the congestion of the subscriber location registration after the system recovery It is advantageous to provide a base of stabilization of the mobile communication system by protecting the mobile communication system from a large failure that may be caused thereby.

System re-start, location registration, re-start excluded node, visitor location registration node

Description

CALL PROCESSING SERVER}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates generally to a mobile communication system, and more particularly, to a mobile communication system capable of initializing a system in a state in which subscriber information is left at the time of restarting the mobile communication system, And more particularly to a call processing server capable of protecting a mobile communication system from a large failure that may occur due to an overload being blocked in advance.

2. Description of the Related Art [0002] Various wireless communication services using a wireless network have been provided according to rapid development of computer, electronic and communication technologies. In particular, recently, wireless Internet service providing a communication service using the Internet through a wireless communication network is emerging while a user of a mobile communication terminal moves without restriction of a place. Accordingly, the subscribers of the mobile communication service can freely communicate with the other party while moving freely anytime and anywhere using the wireless communication service, and can also receive various information such as news, weather, sports, securities, Can be provided in various forms such as text, voice, and image.

In order to provide such a service, a mobile communication system has been developed through a first generation analog AMPS (Advanced Mobile Phone Systems) method and a second generation cellular / personal communication service (PCS) In recent years, IMT-2000 (International Mobile Telecommunication-2000), which is the third generation high-speed data communication, has been used. IMT-2000 was developed for the guarantee of personal mobility and high-speed data transmission in order to guarantee inter-country mobility by integrating systems of other wireless access standards. CDMA 2000 and WCDMA (Wideband Code Division Multiple Access).

WCDMA system uses CDMA (Code Division Multiple Access) method, but mobile communication network technology is based on GSM (Global System for Mobile communication) network technology. The WCDMA communication system adopts AMR (Adaptive Multi-Rate vocoder) with a bit rate of 4.75 kbps to 12.2 kbps for voice coding and supports high mobility even when the user moves at a speed of about 100 km / h . In addition, since the frequency bandwidth is broadened to 5 MHz and the data transmission rate is 2 Mbps, it is suitable for high-speed data transmission and diversity according to reverse call quality, which was not provided by the existing IS- So that the call and data transmission performance is good even in a poor communication environment.

Such a mobile communication system is a basic requirement for ensuring the mobility of the mobile communication terminal, and a procedure for registering and storing the location and the state of the mobile communication terminal in advance is inevitably required. For example, when the mobile communication terminal performs location movement to another call processing service area, the call processing server determines whether to allow the service of the subscriber together with the authentication server connected to the mobile communication terminal, and then generates a key for integrity and encryption And temporarily stores the information of the mobile communication terminal in the visitor location registration node and performs location registration to transmit the information to the home location registration register.

However, when the mobile communication system is restarted, the subscriber registration information is initialized. In this case, after the system recovery is completed, congestion occurs in which the location registration is concentrated by the mobile communication terminal. Here, the restart of the mobile communication system refers to a case where the entire system is restarted due to a faulty recovery process or other reasons when a fault occurs in the system.

As described above, if the congestion phenomenon in which the location registration is concentrated occurs, a secondary failure due to an overload of an apparatus related to location registration, such as an authentication server and a home location registration register, may occur and spread to a large failure.

As described above, according to the related art, when the subscriber registration information is initialized at the time of restarting the mobile communication system, congestion occurs in which the location registration is concentrated by the mobile communication terminal after the system recovery is completed, and the overload There is a problem that a large-scale failure may occur in the secondary.

On the other hand, the problem in rebooting the system is prominent in the WCDMA system. Before WCDMA systems, there was room to perform call processing even when the user authentication information was incomplete. However, in the WCDMA system, the subscriber identity module (SIM: Subscriber Identity Module) Can be performed.

Disclosure of Invention Technical Problem [8] The present invention has been proposed in order to solve the problems of the related art, and provides a call processing server that can initialize the system while keeping subscriber information at the time of restarting the mobile communication system.

There is provided a mobile communication system using a call processing server that can initialize the system while leaving subscriber information at the time of restarting the mobile communication system.

There is provided a method of restarting a mobile communication system using a call processing server so that the system can be initialized while leaving subscriber information at the time of restarting the mobile communication system.

A call processing server according to a first aspect of the present invention includes a security management node managing a log while performing security related functions including control of unauthenticated accesses and a function of storing and managing information of a mobile subscriber A call processing node that performs a function of processing and managing various calls requested by the mobile communication terminal; an interface processing node that performs a function of processing a transmission platform interface of the media gateway; The system management function including the re-start is executed, and the re-start mode is determined according to the option information indicating the re-start non-re-start node for the re-start command for the entire system node, and then the security management node and the call processing node and the interface processing node are restarted In the restart mode And a configuration management node for restarting the system by including or excluding the visitor location registration node as a restart target.

Here, the configuration management node determines any one of an OS (Operating System) level or an application (application) level according to the class information indicating the re-start level for the re-start command and restarts the system.

Wherein the configuration management node terminates a processor of a node other than the security management node and the visitor location registration node and terminates a node monitor of the node excluding the security management node and the visitor location registration node, And a primary unit for terminating the processor and the node monitor, rebooting the configuration management node to which the node belongs, and loading the node monitor of the node excluding the visitor location registration node, wherein the security management node comprises: And a node monitor for connecting with the node monitor of the visitor location registration node, the call processing node, and the interface processing node and loading various processors.

The configuration management node terminates the processor of the node other than the security management node, terminates the node monitor of the node excluding the security management node, terminates the processor and the node monitor of the security management node, And a primary unit for restarting the configuration management node and loading a node monitor of the security management node, the visitor location registration node, the call processing node, and the interface processing node, wherein the security management node includes: And a node monitor for connecting with the node monitor of the visitor location registration node, the call processing node, and the interface processing node and loading various processors.

The configuration management node terminates the processor of the node other than the configuration management node of the security management node, the visitor location registration node, and the interface processing node, and after the OS of the security management node is restarted, A backup unit for rebooting the node and loading a node monitor of the node excluding the visitor location registration node, and a backup unit for restarting the OS of the security management node and restarting the OS of the remaining nodes excluding the visitor location registration node The security management node includes a node monitor connecting with the node monitor of the configuration management node, the visitor location registration node, the call processing node, and the interface processing node and loading various processors.

Wherein the configuration management node comprises a primary and a backup unit, wherein the primary unit is configured to control the processor for the configuration management node, the processor for the visitor location registration node, and the processor for the interface processing node among the processors of the secure management node Wherein the configuration management node is restarted after the OS of the security management node is restarted, and the node monitor for the security management node, the node monitor for the call processing node, And the backup unit restarts the OS of the remaining node except for the visitor location registration node after restarting the OS of the security management node, and the security management node restarts the operation of the configuration management node, the visitor location registration Node, the call processing node, And a node monitor that connects to the node monitor of the face processing node and loads various processors.

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According to the present invention, it is possible to initialize the system while keeping subscriber information at the time of restarting the mobile communication system, thereby preventing an overload that may occur due to the congestion of subscriber location registration after system recovery, Thereby protecting the mobile communication system from a large failure, thereby providing a stabilization base of the mobile communication system.

Hereinafter, some embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

1 is a block diagram illustrating an example of a mobile communication system to which a restart method of the mobile communication system according to the present invention can be applied.

The mobile communication system includes a mobile communication terminal 110, a radio access network 120, a call processing server 130, an authentication server 140, a media gateway 150, a public communication network 160, , The Internet 170, and the like.

The mobile communication terminal 110 is a terminal capable of voice communication, short message transmission, and data communication with the other party through the wireless access network 120. The mobile communication terminal 110 includes a PDA (personal digital assistant), a cellular phone, a PCS phone, a GSM phone, a WCDMA phone, a CDMA-2000 phone, and a Mobile Broadband System (MBS) phone. Here, the MBS phone refers to a mobile phone to be used in the fourth generation mobile communication system. When the user inputs a telephone number for voice communication or the like, the mobile communication terminal 110 transmits the telephone number to the call processing server 130 through the radio access network 120.

The radio access network 120 serves to ensure mobility of the mobile communication terminal 110 and may include a base station and a base station controller. In the case of the synchronous type, the base station is a base transceiver station (BTS) and the base station controller is a base station controller (BSC). In the asynchronous mode, a base station is a Node B and a base station controller is a radio network controller do. Of course, the radio access network 120 includes not only the CDMA network, the WCDMA network but also the HSDPA network, the GSM network, and the fourth generation, as well as the access networks of all future mobile communication systems.

The call processing server 130 performs base and supplementary service processing of mobile communication, incoming and outgoing call processing of a subscriber, location registration procedure and handover procedure processing of the mobile communication terminal 110, and interworking with other networks . The call processing server 130 may be, for example, a mobile service center (MSC) or the like.

The authentication server 140 accesses the call processing server 130 through the radio access network 120 and performs subscriber authentication to provide various services for the mobile communication terminal 110 requesting call processing.

The media gateway 150 converts the format of the traffic format between different communication networks such as the mobile communication network, the public communication network 160, and the Internet 170 to ensure compatibility. The media gateway 150 uses RTP (Real-time Transport Protocol) in the case of IP (Internet Protocol) in the information transfer between the gateways. In case of ATM (Asynchronous Transfer Mode) Virtual Circuits or Switched Virtual Circuits.

2 is a detailed block diagram of a call processing server constituting the mobile communication system shown in FIG.

The call processing server 130 includes a security management node 131, a configuration management node 133, a visitor location registration node 135, a call processing node 137, an interface processing node 139, and the like .

The security management node 131 performs security related functions such as control of unauthorized access to the system, and manages the log of rating and system access to the operator terminal, command, and operator.

The configuration management node 133 performs system configuration management functions such as various resource status control of the managed intelligence platform and the transport platform, system initialization and rebooting, and provisioning. The configuration management node 133 generally manages the system restart process according to the present invention. In addition, the configuration management node 133 includes a primary unit that performs a primary function, and a backup unit that performs a primary function in response to a non-operation of the primary.

The visitor location registration node 135 performs a function of storing and managing information of the mobile subscriber.

The call processing node 137 processes and manages various calls requested by the mobile communication terminal 110.

The interface processing node 139 performs a function of processing the transmission platform interface of the media gateway 150.

3 is a flowchart illustrating a method of restarting a mobile communication system according to an embodiment of the present invention.

As described above, the re-start method of the present invention includes steps (S201 to S203) of determining whether a command to be received is a re-start command for the entire system node, class information indicating re- (S205 to S207) of confirming option information indicating an exclusion node; and determining a level of the OS level or the application level according to the class information and determining whether the visitor location registration node is to be restarted based on the option information (S209) of determining a restart mode (S209), and restarting the system by including or excluding the visitor location registration node as a restart target according to the determined restart mode (S211).

FIG. 4 is a flowchart for explaining a first restart mode according to the restart method of the mobile communication system according to the embodiment of the present invention, in which a restart is performed while excluding a visitor location registration node at an application level.

As described above, the first restart mode according to the restart method of the present invention includes a step S301 of terminating the processor of the node other than the primary security management node and the visitor location registration node of the configuration management node (S301) A step (S303) of terminating the node monitor of the node excluding the primary security management node and the visitor location registration node, a step (S305) of sequentially terminating the processor and the node monitor of the primary security management node of the configuration management node A step S307 of re-starting the configuration management node to which the primary node of the configuration management node belongs, a step S309 of loading the node monitor of the node excluding the visitor location registration node of the primary node of the restarted configuration management node , The node monitor of the security management node connects to the node monitor of each node and loads various processors Includes step S311.

5 is a flowchart for explaining a second restart mode according to the restart method of the mobile communication system according to the embodiment of the present invention, in which the restart is performed in a state including the visitor location registration node at the application level.

As described above, the second restart mode according to the restart method of the present invention includes a step (S401) of terminating the processor of the node other than the primary security management node of the configuration management node (S401) A step (S403) of terminating the node monitor of the node other than the node (S403), a step (S405) of sequentially terminating the processor and the node monitor of the primary security management node of the configuration management node A step S409 of loading a node monitor of all the nodes in the primary node of the restarted configuration management node, and a step (S409) of connecting a node monitor of the security management node to the node monitor of each node And loading various processors (S411).

FIG. 6 is a flowchart for explaining a third restart mode according to the restart method of the mobile communication system according to the embodiment of the present invention, in which a restart is performed with the visitor location registration node removed from the OS level.

As described above, the third re-start mode according to the re-start method of the present invention is a mode in which the primary management unit of the configuration management node selects a processor for a configuration management node, a processor for a visitor location registration node, A step S501 of restarting the OS of the security management node by the backup unit of the configuration management node, and a step S503 of restarting the OS of the remaining nodes excluding the visitor location registration node, A step S507 of restarting the configuration management node to which the configuration management node belongs after rebooting the OS of the primary security management node of the configuration management node, A step (S509) of loading a node monitor of the node excluding the registration node, (S511) in which a node monitor of each node connects to a node monitor of each node and loads various processors.

FIG. 7 is a flowchart for explaining a fourth restart mode according to the restart method of the mobile communication system according to the embodiment of the present invention, in which a restart is performed with the visitor location registration node included in the OS level.

As described above, the fourth restart mode according to the restart method of the present invention includes a step (S601) of terminating a processor of a node other than the configuration management node and the interface processing node of the primary security management node of the configuration management node, A step S603 of rebooting the OS of the security management node by the backup unit of the management node, a step S605 of restarting the OS of the remaining node by the backup unit of the configuration management node, A step S607 of re-starting the configuration management node to which the node belongs after rebooting the node, a step S609 of loading the node monitor of all the nodes in the primary node of the restarted configuration management node, (S611) of connecting to the node monitor of the node and loading various processors.

A process of restarting the mobile communication system according to the embodiment of the present invention described with reference to FIGS. 3 to 7 will be described with reference to FIGS. 1 and 2. FIG.

First, the configuration management node 133 configuring the call processing server 130 determines whether the command currently being received (S201) is a restart command for the entire system node (S203).

As a result of the determination in step S203, in the case of a re-start command for the entire system node, the configuration management node 133 confirms the class information indicating the re-start degree (S205) and confirms the option information indicating the re- . Here, the class information and the option information are included in the command specifications previously agreed.

The configuration management node 133 determines the level of the OS level or the application level according to the class information, determines the re-start target of the visitor location registration node 135 according to the option information, and determines the re-start mode (S209 ). For example, when the class information is "1 ", it means the application level. When the class information is" 0 ", it means the OS level. If the option information includes the identifier corresponding to the visitor location registration node 135 If the identifier corresponding to the visitor location registration node 135 is not included in the option information, it is included in the restart target node.

The configuration management node 133 restarts the system by including or excluding the visitor location registration node 135 in the restart target according to any one of the first to fourth restart modes according to the restart mode determined in step S209 (S211).

First, a reboot process according to the first restart mode will be described.

The primary end of the configuration management node 133 closes the processor of the node excluding the security management node 131 and the visitor location registration node 135 at step S301 and then the primary management node 133 of the configuration management node 133 The node monitor of the node excluding the visitor location registering node 131 and the visitor location registering node 135 is terminated (S303).

The primary node of the configuration management node 133 in turn terminates the processor and the node monitor of the security management node 131 in step S305. The primary node of the configuration management node 133 then exits the configuration management node 133, (S307).

Next, the primary node of the restarted configuration management node 133 loads the node monitor of the node excluding the visitor location registration node 135 (S309).

Finally, the node monitor of the security management node 131 establishes a connection with the node monitor of each node and loads various processors (S311).

The rebooting process by the second restart mode will be described below.

The primary end of the configuration management node 133 closes the processor of the node except for the security management node 131 at step S401 and then the primary node of the configuration management node 133, The monitor is terminated (S403).

The primary node of the configuration management node 133 in turn terminates the processor and the node monitor of the security management node 131 in step S405. The primary node of the configuration management node 133 then exits the configuration management node 133, (S407).

Next, the primary node of the restarted configuration management node 133 loads node monitors of all the nodes (S409).

Finally, the node monitor of the security management node 131 establishes a connection with the node monitor of each node and loads various processors (S411).

The reboot process according to the third restart mode will be described below.

A processor for the configuration management node 133, a processor for the visitor location registration node 135, and a processor for the interface processing node 139 among the processors of the primary security management node 131 of the configuration management node 133 And terminates the excluded processor (S501).

The backup unit of the configuration management node 133 restarts the OS of the secure management node 131 in step S503 and then the backup unit of the configuration management node 133 deletes the OS of the remaining nodes except for the visitor location registration node 135 And restarts the operation (S505).

Next, after the primary OS of the configuration management node 133 restarts the OS of the security management node 131, the configuration management node 133 to which it belongs is restarted (S507), and the restarted configuration management node 133 That is, the node monitor for the secure management node 131 and the node monitor for the call processing node 137 and the interface processing node 139 for the node 139 except for the visitor location registration node 135, The node monitor is loaded (S509).

Finally, the node monitor of the security management node 131 establishes a connection with the node monitor of each node and loads various processors (S511).

The rebooting process according to the fourth restart mode will be described below.

The primary part of the configuration management node 133 closes the processor of the security management node 131 except for the processor for the configuration management node 133 and the interface processing node 139 in step S601.

The backup unit of the configuration management node 133 restarts the OS of the secure management node 131 in step S603 and then the backup unit of the configuration management node 133 restarts the OS of the remaining node in step S605.

Next, after the primary OS of the configuration management node 133 restarts the OS of the security management node 131, the configuration management node 133 to which the primary management node 133 belongs is restarted (S607), and the configuration management node 133 The primary unit loads the node monitor of all the nodes (S609).

Finally, the node monitor of the security management node 131 establishes a connection with the node monitor of each node and loads various processors (S611).

The restarting method of the mobile communication system according to the present invention can be created by a computer program. The code and code segments that make up this computer program can be easily deduced by a computer programmer in the field. In addition, the computer program is stored in a computer readable medium, readable and executed by a computer, thereby implementing a method of restarting the mobile communication system. The information storage medium includes a magnetic recording medium, an optical recording medium, and a carrier wave medium.

The present invention has been described with reference to some embodiments thereof. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Therefore, the disclosed embodiments should be considered in an illustrative rather than a restrictive sense. The scope of the present invention is defined by the appended claims rather than by the foregoing description, and all differences within the scope of equivalents thereof should be construed as being included in the present invention.

The present invention can be applied to all mobile communication systems, including the CDMA network, the WCDMA network, the HSDPA network, the GSM network, and the fourth generation, in future mobile communication systems, It can be used when restarting the entire system.

1 is a block diagram illustrating an example of a mobile communication system to which a restart method of the mobile communication system according to the present invention can be applied;

FIG. 2 is a detailed block diagram of a call processing server constituting the mobile communication system shown in FIG. 1;

3 is a flowchart illustrating a method of restarting a mobile communication system according to an embodiment of the present invention.

4 is a flowchart illustrating a first restart mode according to a restart method of the mobile communication system according to an embodiment of the present invention;

FIG. 5 is a flowchart illustrating a second restart mode according to a restart method of the mobile communication system according to an embodiment of the present invention; FIG.

6 is a flowchart illustrating a third restart mode according to a restart method of the mobile communication system according to an embodiment of the present invention.

FIG. 7 is a flowchart illustrating a fourth restart mode according to the restart method of the mobile communication system according to the embodiment of the present invention; FIG.

Description of the Related Art

110: mobile communication terminal 120: wireless access network

130: call processing server 131: security management node

133: Configuration Management Node 135: Visitor Location Registration Node

137: call processing node 139: interface processing node

140: Authentication server 150: Media gateway

160: Public network 170: Internet

Claims (15)

A security management node that manages logs while performing security related functions including control of unauthorized access; A visitor location registration node for storing and managing information of the mobile subscriber, A call processing node that performs a function of processing and managing various calls requested by the mobile communication terminal; An interface processing node that performs a function of processing a transmission platform interface of the media gateway, A system configuration management function including system initialization and rebooting is performed, a reboot mode is determined according to option information indicating a rebooting excluded node for a reboot command for the entire system node, and then the security management node, the call processing node, A configuration management node for restarting the system by including or excluding the visitor location registration node as a restart target according to the restart mode while including the node as a restart target, The call processing server comprising: The method according to claim 1, The configuration management node determines one of an OS (Operating System) level and an application (application) level according to the class information indicating the re-start level for the restart command and restarts the system Call processing server. 3. The method of claim 2, Wherein the configuration management node terminates a processor of a node other than the security management node and the visitor location registration node and terminates a node monitor of the node excluding the security management node and the visitor location registration node, And a primary unit for terminating the processor and the node monitor, rebooting the configuration management node to which the processor and the node monitor belong, and loading the node monitor of the node excluding the visitor location registration node, The security management node includes a node monitor for connecting with the node monitor of the configuration management node, the visitor location registration node, the call processing node, and the interface processing node and loading various processors Call processing server. 3. The method of claim 2, The configuration management node terminates the processor of the node other than the security management node, terminates the node monitor of the node excluding the security management node, terminates the processor and the node monitor of the security management node, And a primary unit for restarting the CM node and loading the node monitor of the security management node, the visitor location registration node, the call processing node and the interface processing node, The security management node includes a node monitor for connecting with the node monitor of the configuration management node, the visitor location registration node, the call processing node, and the interface processing node and loading various processors Call processing server. delete delete delete delete delete delete delete delete delete delete delete

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