KR20100042680A - Treatment method and system for sms transmission error - Google Patents

Abstract

PURPOSE: A treatment method and system for an SMS transmission error is provided to transmit a short message through a CS(Circuit Switched) region even though the short message is not transmitted due to a No.7 failure within a PS(Packet Switched) region. CONSTITUTION: An SGSN(Serving GPRS Support Node)(20) processes a packet call transmitted to a user terminal, and the SGSN senses whether or not self-No.7 failure happens during the short message transmission processing. The SGSN detects the error information caused by the No.7 failure by requesting the error information to a change controller. The SGSN informs the figured error information to the user terminal. An MSC(Mobile Switching Center)(30) process a call for the signaling signal transmitted and received to and from the user terminal. The MSC processes the SMS transmission request received from the user terminal.

Description

Short message method and processing system {Treatment method and system for SMS transmission error}

The present invention relates to a short message service in an asynchronous data service network. In particular, the present invention relates to a short message error processing method and system for providing normal processing of a short message in response to a No. 7 failure generated in a packet switch of an asynchronous data service network during an SMS message transmission.

Generally, WCDMA network (including HSDPA network), which is an asynchronous data service network, has a packet switched area that supports voice and data communication (eg, voice call, text transmission, multimedia transmission, etc.) according to packet switching method, and circuit switched method. Has a CS (Circuit Switched) area (including MSC) that supports voice and data communication (voice call, text transmission and reception).

In addition, a mobile terminal using a WCDMA network may transmit a short message through a Serving GPRS Support Node (SGSN) in a PS (Packet Switched) area, and may transmit a short message through a MSC (Mobile Switched Center) in a circuit switched (CS) area. Can transmit

If the mobile station receives an error message of a relay protocol from the PS area in response to the service request, will the mobile terminal re-request the service to the PS area according to the error information (error code or error value) included in the error message, Determine whether to request service by switching to CS area. Of course, the mobile terminal stops the service after notifying the user of an error about a service that cannot switch to the CS area or does not set the switch to the CS area.

Specifically, the mobile terminal requests service by switching to the CS area when receiving cause 38 from the PS area as error information according to the terminal international standard standard, and switching to the CS area when receiving cause 69 as error information. .

However, in the conventional WCDMA network, the PS area, in particular, the SGSN, requests various services including a short service request to the database, SMSC (SMS center), home location register (HLR), and intelligent network through the No. 7 network. If the signal transmission to the No. 7 network fails, the error information of cause 38 is notified to the mobile terminal 1. This is in accordance with Figure 23.2 / 2 and Figure 23.2 / 4 of 3GPP TS20.002. In addition, the error information of cause 38 is provided to the SGSN in the SCP server of the SCP (Service Control Point) network or from the SGSN to the mobile terminal when the SMSC provides the SGSN.

Therefore, when No.7 failure occurs in SGSN internally in response to a short message transmission request, the SMS service is processed as shown in FIG. 1. 1 is a data flow diagram illustrating a conventional short message error processing method.

As shown in FIG. 1, the mobile terminal 1 requests transmission of a short message to the PS area of the WCDMA network (S101). When the SGSN 2 of the PS area receives the short message transmission request from the mobile terminal 1, the SGSN 2 attempts to transmit the short message to the SMSC 4 through the network No. 7 in response thereto.

At this time, if transmission to the No.7 network fails (S102), SGSN (2) detects the No.7 failure internally (S103), and accordingly moves the error information of cause 38 in response to the short message transmission request. The terminal 1 is informed (S104).

The mobile terminal 1 reads the received error information to confirm the cause 38 error (S105), and requests the short message transmission again to the SGSN 2 according to the setting corresponding to the cause 38 (S106). Since this request again still occurs No.7 inside the SGSN 2, the SGSN 2 transmits the error information of cause 38 to the mobile terminal 1 again (S107, S103, S104).

On the other hand, when the mobile terminal 1 reads the error information of cause 38 (S105), the mobile terminal 1 may notify the user of the error and stop the text message transmission.

As a result, when the No.7 failure occurs conventionally, normal text messages cannot be transmitted, and there is a problem of increasing the load on the SGSN 2 upon request.

SUMMARY OF THE INVENTION The present invention has been made in an effort to provide a short message error processing method and processing system which allows a short message to be transmitted through a CS area even when a short message cannot be transmitted due to a No. 7 failure in the PS area.

In addition, the technical problem to be achieved by the present invention is to provide a short message error processing method and processing system that allows the operator to determine whether the handling of the short message in the PS area or CS area according to the load state of the switch in the CS area. To provide.

According to an aspect of the present invention, there is provided a first step of receiving a request for processing a first short message sent from an originating terminal at a packet switch of an asynchronous data service network. A second step of detecting transmission failure of the first short message by a third step; identifying first error information set in response to a No. 7 failure in the packet switch; A fourth step of transmitting a CS (Circuit Switched) connection switching message to the originating terminal, and processing the first short message from the originating terminal operated by the circuit switch of the asynchronous data service network according to the CS connection switching message. And a fifth step of receiving the request.

According to another aspect of the present invention for achieving the technical problem, according to the request for setting the first error information or the second error information received from the outside, the error information according to the No. 7 failure is set as the corresponding error information for the setting request. When receiving a request for error information, the controller handles a packet call transmitted / received to a change controller and a user terminal that provides the currently set error information, and detects its own No.7 failure during short message transmission processing. In the event of a failure, a packet switch for identifying and identifying the error information according to the failure to the change controller and informing the user terminal of the detected error information, and processes a call for a signaling signal transmitted and received to and from the user terminal, And a circuit exchange that handles short message transfer requests received from the system.

According to the above-described embodiment, the present invention improves customer satisfaction by enabling uninterrupted short message service even in case of No.7 failure of packet switch (ie SGSN) in asynchronous data service network.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

Throughout the specification, when a part is said to "include" a certain component, it means that it can further include other components, without excluding other components unless specifically stated otherwise. In addition, the terms “… unit”, “… unit”, “module”, etc. described in the specification mean a unit that processes at least one function or operation, which may be implemented by hardware or software or a combination of hardware and software. have.

A short message error processing method and processing system according to an embodiment of the present invention will now be described with reference to the accompanying drawings.

2 is a diagram illustrating a network configuration according to an embodiment of the present invention, in which a WCDMA network is used as an example of an asynchronous data service network. As shown in FIG. 2, the network of the present invention includes an SGSN (packet exchanger) 20 located in the PS area of the WDCDM network, and an MSC (line switch) 30 located in the CS area of the WCDMA network.

The SGSN 20 accesses the SMSC 40, the database (not shown), the intelligent network server (not shown), etc. through the No. 7 network 50, and performs a service operation requested by the user. In addition, like the SGSN 20, the MSC 30 accesses the SMSC 40, the database (not shown), the intelligent network server (not shown), and the like through the No. 7 network 50 to perform a service operation requested by the user. do.

The SGSN 20 and the MSC 30 are connected to each other to transmit and receive data.

Hereinafter, the main part of the short message error processing system according to the first embodiment of the present invention based on the network shown in FIG. 2 will be described with reference to FIG. 3. 3 is a block diagram illustrating main components of a short message error processing system according to a first embodiment of the present invention.

As shown in FIG. 3, the short message error processing system according to the first embodiment of the present invention includes an SGSN 21 and an MSC 31.

The SGSN 21 includes a first No. 7 control unit 211, a first call processing unit 212, a first charging processing unit 213, a first monitoring unit 214, and a first exchange control unit 215.

The first No. 7 control unit 211 performs an interface operation with the No. 7 network and is responsible for data transmission and reception through the No. 7 network. The first call processor 212 determines the source and destination (or called party) of the received packet and establishes a call between the sender and the destination.

The first charging processing unit 213 grasps charging information (eg, user identification information, data amount, etc.) for the user who uses the SGSN 21 and makes the charging. The first monitoring unit 214 monitors the system to determine the operating state inside the SGSN 21 and the operating state of the system as a whole.

The first exchange control unit 215 controls the operation of each component 211, 212, 213, and 214 using a stored program control scheme (SPC). In addition, when the first exchange control unit 215 detects an error of the No. 7 control unit 211 through the first monitoring unit 214, the first exchange control unit 215 may provide fixed error information of the No. 7 failure, that is, cause 69. The mobile terminal 10 is provided.

Here, the accumulated program control method (SPC method) refers to a method of introducing a computer technology into the control of the automatic telephone switchboard so as to perform an exchange operation in accordance with the program.

Next, the MSC 31 includes a second No. 7 control unit 311, a second call processing unit 312, a second charging processing unit 313, a second monitoring unit 314, an overload alarm unit 315, A second exchange control unit 316 is included.

The MSC 31 of this configuration differs from the SGSN 21 in that call processing and service processing for signaling signals received through a line are different from each other, and the overall SMS (short message) call processing structure is SGSN ( Same as 21).

That is, the 2nd No. 7 control part 311 is the same as the 1st No. 7 control part 211, and the 2nd charging process part 313 is the same as the 1st charging process part 213. FIG. In addition, the second monitoring unit 314 is the same as the first monitoring unit 214.

However, unlike the first call processing unit 212, the second call processing unit 312 performs call processing on a signaling signal received through a line.

Of course, the MSC 31 differs from the internal configuration of the SGSN 21 in a configuration not shown. However, the internal configuration of the MSC 31 is not related in the description of the present invention, and corresponds to a conventional configuration, so a detailed description thereof is omitted.

Hereinafter, a short message error processing method according to the first embodiment of the present invention based on the short message error processing system according to the first embodiment of the present invention will be described with reference to FIG. 4. 4 is a data flowchart illustrating a method of processing a short message error according to a first embodiment of the present invention.

When the user inputs the short message and designates the called party to request the short message, the mobile terminal 10 requests the short message to be sent to the SGSN 21 according to the user's request (S401).

When the SGSN 21 receives the short message transmission request from the mobile terminal 10, the SGSN 21 attempts to transmit the short message to the SMSC 40 through the No. 7 network 50 in response thereto. At this time, if the SGSN 21 fails to transmit to the No. 7 network 50 (S402), it detects the No.7 failure inside (S403).

If the SGSN 21 detects that the short message transmission failure is caused by the failure of No. 7, the SGSN 21 notifies the mobile terminal 10 of the error information of cause 69 which is preset in response to the short message transmission request of the mobile terminal 10 (S404). ).

 Then, the mobile terminal 10 reads the error information received from the SGSN 21 to confirm cause 69 (S405), and transmits a short message that the MSN 21 has not processed in accordance with the setting corresponding to the cause 69. 31 requests it (S406).

When the MSC 31 receives the short message request from the mobile terminal 10, the MSC 31 transmits the short message to the SMSC 40 through the No. 7 network 50 (S407 and S408), and the SMSC 40 receives the short message. A short message is provided to the destination designated by the mobile terminal 10, that is, the called party (S409).

Hereinafter, a short message error processing system according to a second embodiment of the present invention will be described with reference to FIG. 5. 5 is a block diagram illustrating main components of a short message error processing system according to a second embodiment of the present invention.

As shown in FIG. 5, the short message error processing system according to the second embodiment of the present invention includes an SGSN 22, an MSC 32, and a change controller 60.

The SGSN 22 includes a third No. 7 control unit 221, a third call processing unit 222, a third charging processing unit 223, a third monitoring unit 224, and a third exchange control unit 225.

The third No. 7 controller 221 is responsible for data transmission and reception through the No. 7 network by performing an interface operation with the No. 7 network. The third call processor 222 determines the source and destination (or called party) of the received packet and establishes a call between the sender and the destination.

The third charging processing unit 223 grasps charging information (eg, user identification information, data amount, etc.) for the user who uses the SGSN 22 and makes the charging. The third monitoring unit 224 monitors the system to determine the operating state inside the SGSN 22 and the operating state of the system as a whole.

The third exchange control unit 225 controls the operation of each component 221, 222, 223, and 224 using a stored program control scheme (SPC). In addition, when the third exchange control unit 225 detects an error of the No. 7 control unit 211 through the third monitoring unit 224, the third exchange control unit 225 requests and receives error information regarding the No. 7 from the change controller 60. To provide the mobile station 10 with error information of the No. 7 fault.

Next, the MSC 32 includes a fourth No. 7 control unit 321, a fourth call processing unit 322, a fourth charging processing unit 323, a fourth monitoring unit 324, an overload alarm unit 325, A fourth exchange control unit 326 is included.

The fourth No. 7 control unit 321 is the same as the fourth No. 7 control unit 221, and the fourth charging unit 323 is the same as the third charging unit 223.

However, in addition to the same function as the third monitoring unit 224, the fourth monitoring unit 324 constantly monitors the load of the MSC 32 and compares the detected load with the reference load to monitor whether the current load is overloaded or normal. .

The overload alarm unit 325 operates when the fourth monitoring unit 394 determines that the current load is an overload, and informs the change controller 60 that the overload is overload so that an operator can check it.

Unlike the third call processing unit 222, the fourth call processing unit 322 performs call processing on a signaling signal received through a line.

On the other hand, the MSC 32 differs from the internal configuration of the SGSN 22 in a configuration not shown. However, the internal configuration of the MSC 32 is not related in the description of the present invention, and corresponds to a conventional configuration, so a detailed description thereof is omitted.

Finally, the change controller 60 is a device that allows the operator to change the error information of No.7 failure, and saves the error information of No.7 failure, that is, one of cause 38 and cause 69 according to the instruction of the operator. Then, the SGSN 22 provides error information of the No. 7 failure set when the SGSN 22 requests.

In other words, the change controller 60 includes an operator input processor 61 and an error code setting unit 62.

The operator input processor 61 is in charge of the interface with the operator, accepts and grasps the operator's input, or informs the user via the indication or alarm that the overload according to the overload notification signal provided by the overload alarm unit 315.

The error code setting unit 62 sets and stores the error information of No. 7 fault input by the operator through the operator input processing unit 61. When the error code setting unit 62 receives the error information request for the No. 7 failure from the SGSN 22, the error code setting unit 62 provides the error information set accordingly.

The error code setting unit 62 is located in the change controller 60 and is distinguished from the SGSN 22. However, the error code setting unit 62 may be located in the internal memory of the SGSN 22.

Hereinafter, a short message error processing method according to a second embodiment of the present invention based on the short message error processing system according to the second embodiment of the present invention will be described with reference to FIG. 6. 6 is a data flowchart illustrating a method of processing a short message error according to a second embodiment of the present invention.

As shown in FIG. 6, the operator (or operator terminal) 70 inputs cause 69 of the cause value (eg, cause 38 or cause 69) to the change controller 60 (S601), and the change controller 60. Sets the cause 69 input by the user as error information for the No. 7 failure (S602).

When the change controller 60 requests the short message transmission from the mobile terminal 10 to the SGSN 22 in a state where the error information for the No. 7 failure is set to cause 69 (S603), the SGSN 22 An attempt is made to send a short message to the SMSC 40 via the No. 7 network 50.

At this time, if transmission to the No. 7 network 50 fails (S604), SGSN 22 detects the No.7 failure (S605).

If the SGSN 22 detects the failure of No. 7, the SGSN 22 queries the change controller 60 for error information corresponding to the occurrence of the failure of No. 7 to inform the mobile terminal 10 of the occurrence of the failure of No. 7 (S606). . The change controller 60 informs the SGSN 21 of the error information of cause 69 set in accordance with the request for the error information for the No. 7 failure (S607).

The SGSN 22 then provides the mobile terminal 10 with error information of cause 69 in response to the short message transmission request (S608), and the mobile terminal 10 reads it and accesses the MSC 32 to send a short message. Request transmission of (S609, S610).

In response to the request of the mobile terminal 10, the MSC 32 provides the short message provided by the mobile terminal 10 to the SMSC 40 through the No. 7 network and requests transmission to the called party (S611).

On the other hand, as in steps S603 to S609, when error information of cause 69 is generated from the SGSN 22, the MSC 32 should be performed in the SGSN 22 so that the MSC 31 processes the short message transmission instead. do.

Accordingly, the MSC 32 may increase the data throughput in comparison with the prior art, thereby increasing the load and overloading the MSC 32.

In response to the occurrence of such a problem, the MSC 32 always monitors its own load (S612). If the load is less than or equal to the set value (S613), that is, if it is normal, the MSC 32 processes the short message on behalf of the SGSN 22. If the load is greater than or equal to the set value (S613), that is, the overload is notified to the change controller 60, the operator 70 knows that processing of the short message on behalf of SGSN 22 cannot be continued (S614). .

Then, the operator 70 determines that the MSC 31 is overloaded according to the overload notification indication displayed on the change controller 60, and accordingly provides an input for setting and changing cause 69 set to cause 38 set in the change controller 60 accordingly. In operation S615, the change controller 60 sets and changes the set cause 69 to cause 38 (S616).

When the error information of No. 7 failure is set to cause 38 in the change controller 60 in this way, the SGSN 22 detects that the error information of cause 38 is caused by the No. 7 failure, even if the SGSN 22 fails to transmit the short message. ) To prevent overload of the MSC 32.

Of course, the operator 70 will observe the load state of the MSC (31) and if the load of the MSC (32) returns to normal from the overload will change the error information for the No.7 failure back to cause 69.

Meanwhile, in the embodiment of the present invention described with reference to FIGS. 4 and 5, when the MSC 32 is overloaded, the operator is notified that the operator changes the error information according to No. 7 failure to cause 38. The invention is not limited to this.

That is, according to the present invention, the SGSN and the MSC are connected to the core network, so that the MSC notifies the SGSN 32 of whether the MSC is overloaded, and accordingly, the SGSN 32 automatically reports error information according to No. 7 failure. You can make changes.

The embodiment of the present invention according to this case will not require the operator change controller 60 shown in FIG. In addition, the MSC notifies the SGSN of the overload when the overload is generated through the overload alarm unit, and informs the SGSN of the normal state when the overload state becomes the normal state. The SGSN itself has a storage unit (i.e., a memory) for storing error information according to No. 7 failure, and sets and stores one of the error information of cause 38 and the error information of cause 69 in the storage unit. At this time, the storage unit sets error information of cause 69 by default, and when the MSC receives an overload condition, changes the setting of error 69 of cause 69 to error information of cause 38, and then receives a normal state again from the MSC. Change the setting of 38 error information to cause 69 error information. Of course, judging the load status of the MSC through a message received from the MSC and changing the setting of the error information in the storage will be done in the third exchange control unit or a separate configuration.

The embodiments of the present invention described above are not only implemented through the apparatus and the method, but may also be implemented through a program for realizing a function corresponding to the configuration of the embodiment of the present invention or a recording medium on which the program is recorded. Implementation may be easily implemented by those skilled in the art from the description of the above-described embodiments.

Although the embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concepts of the present invention defined in the following claims are also provided. It belongs to the scope of rights.

1 is a data flow diagram illustrating a conventional short message error processing method.

2 is a network diagram according to the present invention.

3 is a block diagram of whether or not a short message error processing system according to a first embodiment of the present invention is performed.

4 is a data flowchart illustrating a method of processing a short message error according to a first embodiment of the present invention.

5 is a block diagram illustrating main components of a short message error processing system according to a second embodiment of the present invention.

6 is a data flowchart illustrating a method of processing a short message error according to a second embodiment of the present invention.

Claims (13)

A first step of receiving a request for processing a first short message transmitted from an originating terminal in a packet switch of an asynchronous data service network; A second step of detecting, at the packet exchange, transmission failure of the first short message due to No. 7 failure, A third step of grasping first error information set corresponding to No. 7 failure in the packet switch, A fourth step of transmitting a CS (Circuit Switched) connection switching message to the calling terminal according to the first error information identified by the packet switch, and And a fifth step of the circuit switch of the asynchronous data service network receiving a request for processing the first short message from the originating terminal operated according to the CS connection switching message. The method of claim 1, The third step is a short message error processing method for identifying the first error information that is set to a fixed value inside the packet switch. The method of claim 1, The third step is a short message error processing method for identifying the first error information set in the memory that can change and delete the stored data. The method of claim 3, And a sixth step of changing the setting of the first error information of the memory to the second error information when the overload occurs in the circuit switch, wherein the second error information is the first short message due to No. 7 failure. And inform the packet exchange to retransmit the first short message when the transmission fails. The method of claim 4, wherein And in the sixth step, setting the first error information of the memory to the second error information when the overload occurs in the circuit-switched switch while the memory is located in the external device. The method of claim 4, wherein In a sixth step, the short message error processing method of setting and changing the first error information of the memory into the second error information when the circuit switch is overloaded with the memory embedded in the packet switch. . The method according to claim 5 or 6, And setting the second error information of the memory into the first error information when the circuit switch becomes a normal state from an overload state. The method of claim 7, wherein And the first error information is error information of cause 69, and the second error information is error information of cause 38. According to a request for setting the first error information or the second error information received from the outside, the error information according to the No.7 failure is set as the corresponding error information for the setting request, and when the request for error information is received, the currently set error information Change controller, It handles the packet call transmitted and received to the user terminal, and if it detects its own No.7 failure in the short message transmission process, it requests the change controller to identify and grasp the error information according to the No.7 failure in case of No.7 failure. A packet switch for notifying error information to the user terminal, and And a circuit exchange processing a call for a signaling signal transmitted and received to the user terminal and processing a short message transmission request received from the user terminal. 10. The method of claim 9, The circuit switch further comprises a function of determining whether an internal load is overloaded and informing the change controller of an overload when the determined load state is an overload. 10. The method of claim 9, The packet exchanger performs an interface operation with the No.7 network to perform a first No.7 control unit for data transmission and reception through the No.7 network, a first call processing unit that performs call processing for the received packet call, and A first monitoring unit which monitors the operation state of the first No. 7 control unit to determine whether there is a failure, and controls the operation of each component, and when the No. 7 failure is detected through the first monitoring unit, the change controller sends a No. And a first exchange control section for requesting and receiving the error information for the failure. The method of claim 11, The circuit exchanger, The second No. 7 control unit which is responsible for data transmission and reception through the No. 7 network by performing the interface operation with the No. 7 network, the second call processing unit which performs call processing on the received signaling signal, and identifies the internal load. A second monitoring unit for determining whether the load is overload by comparing the identified internal load with a reference load, a second exchange control unit for controlling the operation of each component, and informing the change controller of the change controller when the overload is determined by the second monitoring unit Short message error processing system including an overload alarm. The method of claim 12, The circuit switch is located in the CS (circuit service) area of the asynchronous data service network, the packet switch is located in the PS (Packet Service) area of the asynchronous data service network, characterized in that the short message error processing system.

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