KR100748271B1 - Method and apparatus for providing SMS service in BCDM network - Google Patents

Abstract

The present invention relates to a method and apparatus for providing an SMS service in a WCDMA network. According to an aspect of the present invention, adding the destination number to the DA (Destination Address) of the RP-DATA of the SMS so that the exchange of the WCDMA network can be routed to the SMSC corresponding to the destination number; And a method for transmitting an SMS of a mobile terminal in a WCDMA network, the method comprising transmitting an SMS to a WCDMA network. Accordingly, it is possible to provide an SMS service method and apparatus in a WCDMA network that can reduce traffic due to SMS routing by routing to an SMSC corresponding to a called terminal during SMS service in a WCDMA network.

WCDMA, called number, exchange, mobile terminal, routing

Description

Method and system for providing SMS service in WCDMA network {Method and System for providing SMS service in WCDMA network}

1 is a diagram illustrating an SMS protocol layer typically used in a WCDMA network.

2 is a diagram schematically showing an overall configuration for SMS service between a WCDMA network and a CDMA network according to an embodiment of the present invention.

3 is a diagram illustrating a process of routing an SMS to a destination SMSC in a WCDMA network according to an embodiment of the present invention.

4 illustrates a format of a DA according to a preferred embodiment of the present invention.

5 is a diagram illustrating a process of routing an SMS received from an originating terminal in an exchange of a WCDMA network according to an embodiment of the present invention.

6 is a functional block diagram showing a configuration according to a function of an exchange of a WCDMA network according to an embodiment of the present invention.

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

10, 12: mobile terminal

20: Gateway (G / W)

30: 3G-MSC

32: 2G-MSC

50, 52: SMSC

100: WCDMA network

120: CDMA network

The present invention relates to an SMS service, and more particularly, to a method and apparatus for providing an SMS service in a WCDMA network.

The Short Message Service (SMS) transmitted from the mobile terminal is processed by the Short Message Service Center (SMSC) and transmitted to the called terminal. There is an associated SMSC for each mobile terminal. That is, the SMS sent from any mobile terminal is sent to the SMSC associated with the called terminal for processing. Therefore, the communication network should route the SMS transmitted from the calling terminal to the SMSC associated with the called terminal.

In recent years, not only a CDMA network but also a WCDMA network capable of performing a video call has been constructed, and a WCDMA network and a CDMA network coexist. In the CDMA network, SMS routing is performed by the exchange receiving the SMS from the calling terminal by sending the SMS to the SMSC associated with the called terminal using the called terminal information (eg, called terminal number).

In contrast, the WCDMA network switch cannot recognize the called terminal information, so that the SMS is transmitted to the SMSC corresponding to the calling terminal's telephone number (that is, the SMSC associated with the calling terminal).

1 is a diagram illustrating an SMS protocol layer typically used in a WCDMA network.

As shown in FIG. 1, the switch 3 of the WCDMA network cannot recognize the TP-DATA of the SM-TL (Transfer Layer), and is a 3GPP (3rd Generation Partnership Project) standard. The telephone number (hereinafter referred to as "called number") of the destination terminal is present in the DA (Destination Address) of TP-DATA that only SMSC 5 can recognize. Therefore, the switch 3 of the WCDMA network cannot recognize the called number.

Typically, the mobile terminal 1 of the WCDMA network transmits to a DA (Destination Address) of RP-DATA (Relay Protocol-DATA), which is data according to a relay protocol (RP) of a relay layer (RL) during SMS transmission. Enter the SC_Address (address of the SMSC associated with the calling terminal) of the Universal Subscriber Identity Module (USIM) card. Therefore, the switch 3 of the WCDMA network routes the SMS to the corresponding SMSC 5 by SC_Address present in the DA of the RP-DATA of the SMS relay layer RL.

 Therefore, assuming that the calling terminal is a WCDMA network subscriber and the called terminal is a CDMA network subscriber, the SMSC associated with the calling terminal (hereinafter referred to as "calling SMSC") and the SMSC associated with the called terminal (hereinafter, If the called SMSCs are different, the originating SMSC may need to route the SMS received from the originating terminal back to the called SMSC. Therefore, there is a problem that unnecessary network load is generated for the routing of SMS.

In addition, when the originating terminal is a subscriber of the CDMA network and the terminating terminal is a subscriber of the WCDMA network, since the exchange of the CDMA network routes to the SMSC of the terminating terminal, the terminating terminal of the WCDMA network receives the SMS from the terminating SMSC.

In addition, any caller may send an SMS using a specific web server such as Naver () rather than a mobile terminal. That is, as SMS flows into the WCDMA network from an SMS gateway (External Short Message Entity-To-Mobile), the SMS processes the message in the incoming SMSC based on the called party number.

As described above, the WCDMA network processes the SMS in the outgoing SMSC based on the calling number, so that the called terminal located in the WCDMA network has a plurality of SMSCs of the outgoing SMSC and the incoming SMSC (when originating from the CDMA network or a general web server). Since it is possible to receive the SMS from the, there is a problem that the order of messages delivered to the destination terminal may be different. In addition, when the number of WCDMA subscribers increases in the above situation, additional equipment may be excessively increased due to increased traffic due to SMS routing between the WCDMA network and the CDMA network, which may be inefficient in terms of network operation.

In addition, such a problem may still occur in a network environment in which there is an integrated SMSC that processes SMS integrally regardless of the WCDMA network and the CDMA network.

Accordingly, the present invention has been made to solve the above-described problem, SMS service method in the WCDMA network that can reduce the traffic due to SMS routing by routing to the SMSC corresponding to the destination terminal when the SMS service in the WCDMA network And to provide a device.

Another object of the present invention is to provide a method and apparatus for SMS routing using a called number in a WCDMA network instead of an SMSC address.

It is another object of the present invention to provide an SMS service method and apparatus for SMS routing to an SMSC corresponding to a called number in a WCDMA network, and for routing SMS to a calling SMSC when a called number is unsuccessful.

Other objects of the present invention will become more apparent through the preferred embodiments described below.

According to an aspect of the present invention for achieving the above object, receiving a message and a called number; Writing the called number to a destination address (DA) of relay protocol data (RP-DATA) of the SMS including the message so that an exchange of a WCDMA network can route to the SMSC corresponding to the called number; And a method for transmitting an SMS of a mobile terminal and a program for executing the method in a WCDMA network including transmitting the SMS to the WCDMA network.

According to another aspect of the invention, the step of receiving a message and called number; Determining whether the connected WCDMA network is its own network; As a result of the determination, when the WCDMA network is its own network, relay protocol data of the SMS including the message so that the exchange of the WCDMA network can route to the SMSC corresponding to the called number (RP-DATA) Write in the DA, and write the SC_Address of the USIM card into the DA if not the network; And a method for transmitting an SMS of a mobile terminal and a program for executing the method in a WCDMA network including transmitting the SMS to the WCDMA network.

Here, the called number according to each aspect of the above may be characterized in that the telephone number of the called terminal.

According to another aspect of the present invention, in a method for providing an SMS service in an exchange in a WCDMA network, receiving an SMS transmission request in which a called number is written in a DA of RP-DATA or a DA of TP-DATA transmitted from an originating terminal Making; Recognizing the called number; And an SMS service method of a WCDMA network switch and a program for executing the method, comprising: routing the SMS to an SMSC corresponding to the called number.

Here, the called number may be a phone number of the called terminal.

In still another aspect of the present invention, there is provided a method for providing an SMS service in an exchange in a WCDMA network, the method comprising: receiving a request for transmitting an SMS sent from an originating terminal; Determining whether DA of RP-DATA or DA of TP-DATA included in the transmission request is a called number; And as a result of the determination, routing the SMS to an SMSC corresponding to the called number if the called number is used, and routing the SMS to an SMSC corresponding to the telephone number of the calling terminal if the called number is not the called number. Provided is a recording medium on which an SMS service method of an exchange and a program executing the method are recorded.

Here, when the DA of the RP-DATA or the DA of the TP-DATA includes a special character, it may be determined that the called number is not the called number.

According to another aspect of the present invention, in the WCDMA network switch, Transmitting and receiving unit for receiving the transmission request of the SMS transmitted from the originating terminal; A control unit which determines whether the DA of the RP-DATA or the DA of the TP-DATA included in the transmission request is the called number; As a result of the determination, in the case of the called number, the SMSC recognizer recognizes the address of the SMSC corresponding to the called number, and if it is not the called number, includes an SMSC recognizer that recognizes the address of the SMSC corresponding to the telephone number of the calling terminal. An exchange of a WCDMA network providing an SMS service is provided, wherein the SMS is routed using the SMSC address recognized by the unit.

Here, the storage unit may further include a storage unit for storing the addresses of the SMSC.

Hereinafter, a method and apparatus for providing an SMS service in a WCDMA network according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

2 is a diagram schematically showing an overall configuration for SMS service between a WCDMA network and a CDMA network according to an embodiment of the present invention.

Referring to FIG. 2, the entire system includes mobile terminals 10 and 12, a WCDMA network 100, and a CDMA network 120. The mobile terminals 10 and 12 may be classified into an originating terminal for transmitting an SMS and a terminating terminal for receiving the sent SMS.

The mobile terminals 10 and 12 are terminals capable of wireless communication through a communication network such as the WCDMA network 100 or the CDMA network 120. The mobile terminals 10 and 12 may transmit and receive SMS through a communication network such as a PDA as well as a mobile phone such as a PCS. All wireless communication terminals are included. Hereinafter, for convenience of description, the mobile terminals 10 and 12 will be described by taking a mobile phone such as PCS as an example, but all wireless communication terminals capable of providing SMS services through a communication network can be equally applied. The following description will become more apparent.

When the mobile terminal 10, which is a subscriber of the WCDMA network 100, sends an SMS through the WCDMA network 100, according to the prior art, the DA of the relay protocol data (RP-DATA) corresponding to the relay layer of the SMS message header is In the Destination Address, SC_Address, which is the SMSC address of the calling party described in the USIM card, is entered, but according to the present invention, the destination number, which is the telephone number of the called terminal, is entered in the DA.

The WCDMA network 100 includes an SMSC 50 and a 3G-MSC 30, and the CDMA network 120 includes a gateway for interworking with the WCDMA network 100 (G / W: Gateway 20) and 2G. MSC 32 and SMSC 52. Each of the SMSCs 50 and 52 of the CDMA network 120 and the WCDMA network 100 may process only SMS of each network subscriber, or may be an integrated SMSC capable of processing SMS of both network subscribers together. 3G-MSC (30) and 2G-MSC (32) is a switch of each network, performs the function of routing the SMS transmitted from the mobile terminal (10, 12) to the SMSC, in addition to the call between the mobile terminal Performs a function of setting a call for

According to the present invention, upon receiving the SMS request message from the originating terminal, the 3G-MSC 30 checks the DA of the RP-DATA and routes the SMS to the SMSC of the called terminal. That is, SC_Address is not written in the DA as in the prior art, and according to the present invention, since the called number is described in the DA, the 3G-MSC 30 recognizes the SMSC of the called terminal corresponding to the called number and transmits the SMS. Can be.

The 3G-MSC 30 recognizes the SMSC of the called terminal using the called number. The 3G-MSC 30 directly stores information (eg, an SMSC address) of the SMSC corresponding to the called number. The SMSC can be recognized. In addition, although it may be received from a location register such as a home location register (HLR) or a virtual location register (VLR) corresponding to the called number, more preferably, the 3G-MSC 30 directly recognizes an SMSC corresponding to the called number. Doing so can increase the traffic efficiency of the network.

According to another embodiment of the present invention, the 3G-MSC 30 does not check the DA of the RP-DATA, but checks the DA of the TP-DATA (Transfer Protocol-DATA) and the SMSC of the called terminal corresponding to the called number. You can also route SMS to. That is, while the 3G-MSC 30 can refer only to DA of RP-DATA conventionally, the 3G-MSC 30 according to the present invention can refer to DA of TP-DATA which is data of TL (Transfer Layer). Therefore, the called number described in DA of TP-DATA can be used. In this case, the calling terminal 10 may enter the called number in the DA of the RP-DATA, but may also write the SC-Address on the calling terminal 10 side as in the prior art.

Therefore, the 3G-MSC 30 of the WCDMA network 100 can route the SMS transmitted from the originating terminal to the SMSC of the called terminal, such as the 2G-MSC 32 of the CDMA network 120. As a result, the routing traffic between the calling SMSC and the called SMSC, which may occur when routing to the SMSC of the calling terminal, may be eliminated.

3 is a diagram illustrating a process of routing an SMS to a called SMSC in a WCDMA network according to an embodiment of the present invention, and FIG. 4 is a diagram illustrating a format of a DA according to an embodiment of the present invention.

Hereinafter, for convenience of explanation, it is assumed that the calling terminal 10 is a subscriber of the WCDMA network 100, and the called terminal is a subscriber of the CDMA network 120. Of course, the same process is performed even if the called terminal is a subscriber of the WCDMA network. It will be more apparent through the following description that can be performed as. In addition, the switch 30 of the WCDMA network 100 will be described with reference to an example of recognizing the called number with reference to the DA of the RP-DATA, but as described above, the called number is recognized by referring to the DA of the TP-DATA. Of course you can.

Referring to FIG. 3, in step 310 to step 330, as a user of the calling terminal 10 writes a message, inputs a phone number of a called terminal to receive an SMS, and then inputs an SMS transmission command, the calling terminal 10 receives the SMS. Send the incoming number to the DA and request the SMS transmission to the exchange 30. That is, the originating terminal 10 may transmit data (RP-DATA) of the relay protocol (RP: Relay Protocol), which is an SMS protocol of the relay layer RL, so that the exchange 30 of the WCDMA network 100 can recognize the called number. Enter the called party number in the DA in).

Conventionally, the calling terminal 10 writes the SC_Address, which is the address of the SMSC 52, in the destination address (DA), but according to the present invention, the called number is entered. Typically, since the SC-Address and the destination number used in the WCDMA network 100 are used in a similar format, it will be apparent to those skilled in the art that the destination number can be written using the format of the DA currently being used.

Referring to FIG. 4, a format of a destination address (DA) according to the present invention includes an address length (Length-Length) field, an address type (Type-of-Address) field, and an address value field. can do. A value indicating the total length of the DA may be written in the address length field, and information on whether the address value is a national address or an internationally recognized address value may be written in the address type field. Can be. A value corresponding to the telephone number of the called terminal is written in the address value field so that the exchange 30 can recognize the SMSC 52 of the called side.

Here, the originating terminal 10 may be set to be performed only when the communication network to be connected is the own network in the own station. That is, when a user goes abroad and is provided with a roaming service, the switching network of the other network may not perform routing using the called number because the communication network to which the user is connected is not a subscribing network. Therefore, when the communication network to be connected is another network other than the own network, the originating terminal 10 can send the SC_Address of the USIM card to DA in the same manner as in the related art. That is, the calling terminal 10 may precede the step of determining whether the connected network is its own network or the other network. In general, since a signal is frequently transmitted and received between the terminal and the communication network, it is possible to determine whether the communication network to be connected is own network or another network. Hereinafter, a communication network (ie, WCDMA) network to which the calling terminal 10 is connected will be described by taking an example of a self network.

Referring back to FIG. 3, the exchange 30 that receives it in steps 340 and 350 recognizes the SMSC 52 corresponding to the called number of the DA and transmits the SMS to the recognized SMSC 52.

Hereinafter, a process of processing the SMS transmission request transmitted from the originating terminal 10 in the switch 30 of the WCDMA network 100 will be described in detail.

5 is a diagram illustrating a process of routing an SMS received from an originating terminal in an exchange of a WCDMA network according to an embodiment of the present invention.

Referring to FIG. 5, in operation 510, the exchange 30 of the WCDMA network 100 receives an SMS transmission request message from the originating terminal 10. In step 520, the exchange 30 determines whether the DA of the received message is the called number. That is, the exchange 30 determines whether the DA value is translated into a special character (for example, #, *, etc.) rather than a number, and determines whether the DA is in the format of the called number. Here, if only a number exists without a special character or the like in the DA value, it may be further determined whether or not the actual subscriber authentication of the corresponding number, such as whether there is an SMSC corresponding to the corresponding number. That is, by performing the authentication procedure in the exchange 30, it is possible to prevent unnecessary traffic in advance by sending an SMS to a destination number that does not exist. If the called number is not authenticated, the exchange 30 may transmit a message to the calling terminal 10 in response to the impossible SMS transmission.

As a result of the determination in step 520, if the DA is the called number, the exchange 30 recognizes the address of the SMSC corresponding to the called number in steps 530 and 540 and transmits the SMS to the SMSC.

However, if the DA is not the called number (e.g., contains special characters such as #, *), use the telephone number of the calling terminal 10, corresponding to the calling number, in steps 535 and 540. The SMSC of the calling party is recognized and sent to the recognized SMSC.

6 is a functional block diagram showing the configuration according to the function of the exchange of the WCDMA network according to an embodiment of the present invention.

Referring to FIG. 6, the exchange 30 includes an SMSC recognizer 31, a storage 33, a transceiver 35, and a controller 37.

The SMSC recognizing unit 31 performs a function of recognizing the address of the corresponding SMSC using the destination number of the RP-DATA DA or the TP-DATA DA included in the SMS transmission request message received from the originating terminal 10. . In addition, the SMSC recognition unit 31 recognizes the SMSC address corresponding to the telephone number of the calling terminal when the DA's called number includes special characters such as "*" and "#".

The storage unit 33 stores data necessary for each component of the exchange 30 to operate, and in particular, performs a function of storing the addresses of SMSC corresponding to each called number. Here, the address of each SMSC may be stored, but when the SMSC address is recognized in association with the location registers (HLR and / or VLR), information of the location register corresponding to each called number may be stored.

The transceiver 35 transmits and receives a message according to an SMS transmission request with the calling terminal 10 and transmits and receives data such as an SMSC and another exchange recognized by the SMSC recognizer 31 to route the SMS.

The controller 37 may route the corresponding SMS to the called SMSC corresponding to the called terminal in response to the SMS transmission request message transmitted from the calling terminal 10, the SMSC recognition unit 31, the storage 33, It performs a function of controlling the transceiver 35. In particular, the controller 37 determines whether the DA value of the received SMS transmission request message is the called number. That is, the controller 37 determines whether the DA of the SMS transmission request message includes a special character, and when the value of the DA is the called number, the SMSC recognizer 31 recognizes the address of the SMSC corresponding to the called number. If it is not the called number, the SMSC recognition unit 31 controls to recognize the address of the SMSC corresponding to the calling number.

The method of the present invention as described above may be implemented as a program and stored in a computer-readable recording medium (CD-ROM, RAM, ROM, floppy disk, hard disk, magneto-optical disk, etc.).

The present invention is not limited to the above embodiments, and many variations are possible by those skilled in the art within the spirit of the present invention.

As described above, according to the present invention, an SMS service method and apparatus in a WCDMA network that can reduce traffic due to SMS routing by routing to an SMSC corresponding to a called terminal when an SMS service in a WCDMA network is provided. It can be effective.

In addition, the present invention can provide a method and apparatus for SMS routing using a called number rather than an SMSC address in a WCDMA network.

In addition, the SMS routing method to the SMSC corresponding to the called number in the WCDMA network, and if the caller ID recognition fails, SMS routing to the calling SMSC to compensate for the failure of SMS routing using the called number; A device can be provided.

Although described above with reference to a preferred embodiment of the present invention, those skilled in the art that various modifications of the present invention without departing from the spirit and scope of the invention described in the claims below And can be changed.

Claims (11)

Receiving a message and a called number; The destination number is written in the DA (Destination Address) of the relay protocol data (RP-DATA) of the SMS message corresponding to the input message so that the exchange of the WCDMA network can route to the SMSC corresponding to the destination number. Making; And And transmitting the SMS message including the called number to the WCDMA network. Receiving a message and a called number; Determining whether the connected WCDMA network is its own network; As a result of the determination, when the WCDMA network is its own network, the relay protocol data of the SMS message corresponding to the input message may be transferred so that the exchange of the WCDMA network may route to the SMSC corresponding to the called number. RP-DATA) and write the SC_Address of the USIM card to the DA if it is not a network; And And transmitting the SMS message including the called number to the WCDMA network. The method according to claim 1 or 2, And the called number is a telephone number of a called terminal. A method for providing an SMS service in an exchange of a WCDMA network, Receiving from the originating terminal a request for transmission of an SMS message in which the called number is written in the DA of the RP-DATA or the TP-DATA; Recognizing the called number; And SMS service method of a WCDMA network switch comprising the step of routing the SMS to the SMSC corresponding to the called number. The method of claim 4, wherein The called number is an SMS service method of a WCDMA network switch, characterized in that the telephone number of the called terminal. A method for providing an SMS service in an exchange of a WCDMA network, Receiving a request for transmission of an SMS message sent from an originating terminal; Determining whether the DA of the RP-DATA or the DA of the TP-DATA of the SMS message requested to be transmitted is the called number; And WCDMA comprising the step of routing the SMS message to the SMSC corresponding to the called number in the case of the called number, and routing the SMS message to the SMSC corresponding to the telephone number of the calling terminal if the called number is not the called number. SMS service method of network exchange. The method of claim 6, If the DA of the RP-DATA or the DA of the TP-DATA includes a special character, it is determined that the called number is not the SMS service method of the WCDMA network switch. In the exchange of WCDMA network, A transceiver for receiving a request for transmission of an SMS message transmitted from a calling terminal; A control unit determining whether the DA of the RP-DATA or the DA of the TP-DATA included in the requested SMS message is the called number; As a result of the determination, in the case of the called number, an SMSC recognizer recognizes the address of the SMSC corresponding to the called number and, if not the called number, recognizes the address of the SMSC corresponding to the telephone number of the calling terminal. And switch the SMS message by using the SMSC address recognized by the SMSC recognizer. The method of claim 8, And a storage unit for storing the addresses of the SMSC. In a recording medium that is implemented in a type that can be executed in a mobile terminal for transmitting an SMS over a WCDMA network, a program that can be read by the mobile terminal is recorded, Adding the called number to a destination address (DA) of RP-DATA of an SMS message so that the exchange of the WCDMA network can route to the SMSC corresponding to the called number; And And transmitting the SMS message to the WCDMA network. In a recording medium having a program type that is implemented so that it can be executed in an exchange of a WCDMA network providing an SMS service, which can be read by the exchange, Receiving a request for transmission of an SMS message sent from an originating terminal; Determining whether the DA of the RP-DATA or the DA of the TP-DATA of the SMS message requested to be transmitted is the called number; And And if it is the called number, routing the SMS message to the SMSC corresponding to the called number, and if not the called number, routing the SMS message to the SMSC corresponding to the telephone number of the calling terminal. A recording medium having a program recorded thereon.

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