KR100871618B1 - Method and apparatus for map statistics in mobile communication system - Google Patents

Abstract

The present invention relates to a map statistics method and apparatus in a core network node of a mobile communication system, and when performing a specific operation using a mobile application part (MAP) signaling method, the destination using a message transmitted and received with a destination node on which the operation is performed. Using a GT (Global Title) assigned to each node, including a process of identifying a GT (Global Title) of the node and increasing the number of attempts and successes or failures of the operation using the identified GT. By collecting statistical information on the MAP signaling method, individual MAP statistical information can be collected not only for nodes existing in its own provider network but also for nodes present in other mobile communication provider networks. If the method fails, you can easily identify the node where the problem occurred.

Destination Point Code (DPC), Global Title (GT), MAP Statistics, MGT, MSISDN

Description

METHOOD AND APPARATUS FOR MAP STATISTICS IN MOBILE COMMUNICATION SYSTEM}

1 is a diagram showing a data structure for collecting MAP statistical information in a mobile communication system according to the prior art;

2 is a diagram illustrating a structure in which MAP statistical information is collected according to a DPC of each node in a mobile communication system according to the prior art;

3 is a block diagram of a core network node of a mobile communication system according to the present invention;

4 is a diagram illustrating a MAP statistics procedure in a core network node of a mobile communication system according to an embodiment of the present invention;

5 is a diagram illustrating a data structure for collecting MAP statistical information in a mobile communication system according to an embodiment of the present invention;

6 is a diagram illustrating a structure in which MAP statistical information is collected according to GT of each node in a mobile communication system according to an embodiment of the present invention;

7 is a diagram illustrating an example of a signal flow for MAP statistics in a mobile communication system according to an embodiment of the present invention; and

8 is a diagram illustrating performing MAP statistics according to a received signal in a mobile communication system according to an embodiment of the present invention.

The present invention relates to a method and apparatus for Mobile Application Part (MAP) statistics in a mobile communication system. More particularly, the present invention relates to a method and apparatus for collecting MAP statistical information using a global title (GT) of each node. Here, GT means a node identifier uniquely assigned to all nodes on the earth.

In general, core network nodes of mobile communication systems interact with nodes of domestic and overseas operators according to MAP signaling. In the mobile communication system, each core network node (eg MSC, VLR, GGSN, HLR, EIR, gsmSCF, SMS Center, GMLC) is a destination point code (DPC) of a node associated with it. A statistical function for performing the MAP signaling method is performed based on. That is, as shown in FIG. 1, the number of attempts for each MAP operation and the number of successes or failures of the attempted operations are collected and collected using the DPC of the destination node.

The DPC is a node number uniquely identified only within its core network, which is a limited area. Therefore, when performing statistics on the MAP signaling method using the DPC, as shown in FIG. 2, individual MAP statistics information may be collected for core network nodes located in the mobile operator network, but domestic and international MAP statistical information cannot be collected separately for core network nodes of other provider networks.

The MAP statistical method using the DPC can be effectively used in a CDMA method in which an international global roaming service is not important. However, in the GSM technology that places importance on the international global roaming service, when the DPC-based MAP statistical method is used, problems occurring in nodes existing in its own network can be easily detected, but for nodes in other provider networks. Since the granular MAP statistics information cannot be collected, problems occurring in the nodes of the other provider networks are difficult to detect.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a method and apparatus for MAP (Mobile Application Part) statistics in a mobile communication system.

Another object of the present invention is to provide a method and apparatus for collecting MAP statistical information by using a GT (Global Title) assigned to each node in a mobile communication system.

According to the first aspect of the present invention for achieving the above objects, the map statistics method in the core network node of the mobile communication system, when performing a specific operation using a mobile application part (MAP) signaling method, the destination node that the operation is performed And identifying a GT (Global Title) of the destination node by using a message transmitted and received, and increasing the number of attempts and successes or failures of the operation using the identified GT. .

According to a second aspect of the present invention for achieving the above objects, the map statistics apparatus in the core network node of the mobile communication system, when performing a specific operation using the MAP (Mobile Application Part) signaling method, generates a message to be sent to the destination node A message generator for transmitting the generated message to the destination node, a transceiver for receiving a response message for the transmitted message from the destination node, and providing the message to a map statistics unit; And a map statistics unit for checking a global title (GT) and increasing the number of attempts and successes or failures of the operation using the identified GT.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In describing the present invention, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

Hereinafter, the present invention will be described with respect to a method and apparatus for collecting statistical information on a MAP signaling method using a GT (Global Title) assigned to each node in a mobile communication system. Here, GT means a node identifier uniquely assigned to all nodes on the earth. Hereinafter, the present invention describes a case in which MAP statistical information is collected for MAP signaling performed between VLR and HLR. For example, MSC and HLR, VLR and VLR, MSC and MSC, MSC and MSC Center, MSC and EIR, The same applies to MSC and gsmSCF, VLR and gsmSCF, MSC and GMLC, SGSN and HLR, SGSC and EIR, SGSN and SMS Senter, SGSN and GMLC and GGSN and HLR. In the following description, a simple case in which the MAP signaling method is terminated by transmitting and receiving a BEGIN message and an END message will be described as an example.

3 is a block diagram of a core network node of a mobile communication system according to the present invention. Here, the core network node includes a message generator 300, a MAP statistics unit 304, a message transceiver 302, a storage unit 306, a timer 308, and the MAP statistics unit 304. Includes a GT analyzer 312 and a MAP-PDU analyzer 314.

Referring to FIG. 3, first, the message generator 300 calls a calling party address (Cg) when an event for performing a MAP operation with a specific node occurs according to a MAP signaling method. Generates a start message that is a node number and a call party address (Cd) is a global title (hereinafter, referred to as GT) of the specific node, that is, a destination node, to the message transceiver 302. to provide. In this case, the message generator 300 temporarily stores in the storage unit 306 that the specific operation has been attempted. Here, the GT of the destination node includes a number of the destination node (eg, HLR #, VLR #, SMS Center #), MGT (Mobile Global Title), and MSISDN (Mobile Subscriber ISDN). Accordingly, the message generator 300 always uses the number of the destination node when the number of the destination node is known in advance, and uses the MGT or MSISDN when the number of the destination node is not known in advance.

In addition, when the message generator 300 receives a signal indicating that a start message is received from a specific node in the message transmitter / receiver 302, the originating address Cg has its own node number (eg, HLR #). , VLR #, and SMS Center #), and generates a response message, which is an end message (END), which is the number of the node that has transmitted the start message and provides the message to the message transceiver 302.

The message transmitter / receiver 302 transmits the message provided from the message generator 300 to the corresponding node, and when the response message is received from the corresponding node, the message generator 300 receives the response message. And the received response message to the MAP statistics unit 304.

The MAP statistics unit 304 includes the GT analyzer 312 and analyzes the origination address Cg of the response message provided from the message transceiver 302 to send the response message GT. Check. Here, the GT analyzer 312 determines the number of the specific node as the GT when the originating address Cg of the response message is the number of the specific node, and when the MGT or MSISDN is the MGT or MSISDN. Of the codes constituting the code, a country code (hereinafter referred to as 'CC') and a national network code (hereinafter referred to as 'NDC') are determined as the GT. Here, the MGT is composed of CC + NDC + Mobile Subscriber Identity Number (MSIN), and the MSISDN is composed of CC + NDC + Subscriber Number (SN).

When the GT is identified, the MAP statistics unit 304 analyzes the MAP-pdu included in the response message through the MAP-PDU analysis unit 314 to determine whether the operation attempt succeeds or fails. Thereafter, the MAP statistics unit 304 provides the storage unit 306 that the attempt of the temporarily stored operation has succeeded or failed for the node having the identified GT.

In addition, when the response message is not provided from the message transceiver 302 before the timer 308 expires, the MAP statistics unit 304 receives a start message generated by the message generator 300. The GT is identified by analyzing the call address Cd, and it is determined that the attempt of the operation has failed and is provided to the storage unit 306.

The storage unit 306 stores its own node number (eg, HLR #, VLR #), temporarily stores a specific operation provided from the message generating unit 300, and specifies the specific operation from the MAP statistics unit 304. It is provided whether the execution of the temporary stored operation has succeeded or failed for the node having a GT and stores the corresponding number of times. That is, the storage unit 306 stores the number of attempts and successes or failures of the operation for the GT using the data structure as shown in FIG. 5. Here, the storage unit 306 stores the number of attempts and successes or failures of each operation by using the GT of each node, as shown in FIG. Individual MAP statistics can also be performed and collected for core network nodes. In other words, by collecting the MAP statistical information for each specific MAP operation performed at a specific node belonging to a specific country, a specific operator of the specific country, a specific operator belonging to a specific operator of the specific country, and a specific operator belonging to the specific country. If it occurs, it will be easy to identify the node where the problem occurred.

The timer 308 operates at a time point when the start message is transmitted to the destination node under the control of the message transceiver 302 to measure a predetermined time. The timer 308 provides the MAP statistics unit 304 that the predetermined time expires when the predetermined time expires.

4 illustrates a MAP statistics procedure in a core network node of a mobile communication system according to an embodiment of the present invention.

Referring to FIG. 4, when a specific MAP operation with a specific node (destination node) is performed in step 401, the core network node (originating node) has a caller address Cg and a caller address Cd. Generates a start message of which GT is the destination node and transmits the message to the destination node. For example, as shown in FIG. 7, when the source node is a VLR and the destination node is an HLR, the VLR has an incoming call address Cd of one of MGT, HLR #, and MSISDN, and an outgoing call address Cg. Is VLR #, which is the node number of the VLR, and generates a BEGIN message including a MAP-pdu, and transmits it to the HLR. Here, when the source node knows the number of the destination node in advance, the number of the destination node is always used as GT. In addition, at this time, the source node temporarily stores that the specific MAP operation has been attempted.

In step 403, the source node checks whether a predetermined time has elapsed using the timer 308. If the predetermined time has not elapsed, the source node proceeds to step 405 and checks whether a first response message is received from the destination node.

The source node returns to step 403 when the response message is not received, and proceeds to step 407 when the response message is received, and analyzes the received response message from the originating address Cg to analyze the received response message. Analyze GT and MAP-pdu. Here, when the response message is a message of a UDT (Unit Data) type, the source node determines that the MAP signaling method is normally performed, analyzes the GT of the response message, confirms the number of the destination node, and the MAP. -pdu can be analyzed to confirm the success or failure of the MAP operation. At this time, the destination node number can be identified in the response message, when generating the response message in the destination node, as shown in FIG. 7, to provide its own node number to the originating call address (Cg). Because it is. On the other hand, when the response node is a UDTS type message, the source node determines that the message sent by the source node does not reach the MAP layer of the destination node and is returned from the originating node, the intermediate node, or the destination node and fails the operation. The number of the destination node may be confirmed using the GT of the response message.

In step 409, the source node checks whether the operation is successful. If it is determined that the operation is successful, the source node uses the data structure for the MAP statistics as shown in FIG. 5 in step 411 to correspond to the source node having the analyzed GT. After increasing the number of attempts and successes of the operation, the algorithm according to the present invention is terminated.

On the other hand, when it is determined that the operation fails, the source node uses the data structure for MAP statistics as shown in FIG. 5 in step 413 to correspond to the source node having the analyzed GT. After increasing the number of attempts and failures of the operation, the algorithm according to the present invention is terminated.

On the other hand, if a predetermined time has elapsed in step 403, that is, if a response message is not received from the destination node within the predetermined time, the source node transmits the destination node through the call destination address Cd of the start message in step 415. After analyzing the GT, the process proceeds to step 417 to increase the number of attempts to perform the MAP operation and the number of failures in the node corresponding to the GT, and then terminates the algorithm according to the present invention.

Next, a specific example will be described based on the configuration of FIGS. 3 and 4 described above. In the following description, the case where the source node is a VLR system and the destination node is an HLR system will be described as an example.

8 illustrates performing MAP statistics according to a received signal in a mobile communication system according to an embodiment of the present invention.

Referring to FIG. 8, a VLR system, which is a source node, transmits a start message of a UDT type including a MAP-pdu to an HLR system, which is a destination node, 800. At this time, the incoming call address (Cd) indicating the destination node uses one of MGT, HLR #, MSISDN, and temporarily stores that a specific MAP operation is attempted. Here, when the source node is SGSN and the destination node is the SMS Center, the SMS Center # included in the call destination address (Cd) of the start message is the number of the representative SMS Center and is included in the originating address (Cg) of the response message. The SMS Center # may be a number of a specific SMS Center. Accordingly, the source node does not increase the number of attempts of the corresponding MAP operation to perform the MAP statistics using the correct GT, and temporarily stores that the corresponding MAP operation is simply attempted until a response message is received from the destination node. do.

First, as in case 1, when the VLR system receives an end message of the UDT type having the originating address Cg of HLR #, that is, a response message (802), the VLR system receives a MAP signal with the HLR system. It is determined that the scheme is normally performed, and the number of attempts of the corresponding MAP operation for the HLR # is increased. The VLR system determines whether the MAP operation succeeds or fails through the MAP-pdu included in the response message and increases the number of successes or failures of the corresponding MAP operation for the HLR #.

Next, as in case 2, when the VLR system receives a response message of the UDTS type of the originating address (Cg) is one of MGT, HLR # or MSISDN (804), the VLR system sends a MAP message sent by the VLR system Does not reach the MAP layer of the HLR system and returns to determine that the execution of the MAP signaling method has failed, and analyzes the GT to increase the number of attempts and failures of the corresponding MAP operation of the node corresponding to the analyzed GT. . At this time, when the originating address (Cg) of the response message is the MGT or MSISDN, the VLR uses only the CC + NDC portion constituting the MSG or MSISDN as the GT.

Finally, as in Case 3, when the VLR system does not receive the response message within a predetermined time (806), the VLR system analyzes the GT used as the call destination address (Cd) in the start message, The number of attempts and failures of a corresponding MAP operation of a node corresponding to the analyzed GT is increased. At this time, when the call destination address (Cd) of the start message is the MGT or MSISDN, the VLR uses only the CC + NDC portion constituting the MSG or MSISDN as the GT.

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the scope of the following claims, but also by the equivalents of the claims.

As described above, the present invention collects statistical information on the MAP signaling method using GT (Global Title) assigned to each node in the mobile communication system, so that other mobile communication providers as well as nodes existing in their own network. Individual MAP statistical information can be collected for nodes existing in the network. Accordingly, when the MAP signaling method fails, it is possible to easily identify the node where the problem occurs.

Claims (14)

In the map statistics method in the core network node of the mobile communication system, When performing a specific operation using a mobile application part (MAP) signaling method, checking a GT (Global Title) of the destination node using a message transmitted / received with the destination node on which the operation is performed; And increasing the number of attempts and successes or failures of the operation using the identified GT. The method of claim 1, Wherein the GT is any one of a Mobile Global Title (MGT), a number of the destination node, and a Mobile Subscriber ISDN (MSISDN). The method of claim 1, The process of checking the GT (Global Title) of the destination node by using the transmitted and received message, Transmitting a message in which an incoming call address is a GT (Global Title) of the destination node, to the destination node; Receiving a response message to the transmitted message within a predetermined time; And analyzing the originating address of the response message to identify the GT of the destination node. The method of claim 3, wherein The process of identifying the GT of the destination node by analyzing the originating address, Checking whether the originating address is a number of the destination node or an MGT or MSISDN; If the originating address is a number of a destination node, identifying the number of the destination node as the GT. The method of claim 4, wherein If the originating address is an MGT or MSISDN, further comprising: checking a country code and a national destination code constituting the MGT or MSISDN with the GT. The method of claim 3, wherein And if the response message is not received within the predetermined time, analyzing the call destination address of the transmitted message to identify the GT of the destination node. The method of claim 6, The process of identifying the GT of the destination node by analyzing the incoming call address, Checking whether the called address is a number of the destination node, an MGT, or an MSISDN; If the incoming call address is a number of a destination node, checking the number of the destination node as the GT. The method of claim 7, wherein If the called address is an MGT or MSISDN, further comprising the step of identifying a country code and a national destination code constituting the MGT or MSISDN with the GT. In the map statistics apparatus in the core network node of the mobile communication system, A message generator for generating a message to be transmitted to a destination node when performing a specific operation using a MAP (Mobile Application Part) signaling method; A transmitter / receiver for transmitting the generated message to the destination node and receiving a response message to the transmitted message from the destination node; And a map statistics unit for identifying a GT (Global Title) of the destination node from the response message and increasing the number of attempts and successes or failures of the operation using the identified GT. The method of claim 9, Wherein the GT is any one of a Mobile Global Title (MGT), a number of the destination node, and a Mobile Subscriber ISDN (MSISDN). The method of claim 9, The message generator, And generate a message wherein the originating address is its node number and the called address is the GT of the destination node. The method of claim 9, The map statistics unit, And when the originating address of the response message is a number of a destination node, determine the number of the destination node as the GT. The method of claim 9, The map statistics unit, And when the originating address of the response message is an MGT or MSISDN, checking the country code and the national destination code constituting the MGT or MSISDN with the GT. The method of claim 9, Further comprising a timer for measuring a predetermined time, The map statistics unit, when the response message is not received within the predetermined time, characterized in that to identify the GT of the destination node by analyzing the incoming call address of the message generated by the message generator.

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