KR100718790B1 - Apparatus and method for processing wcdma sms in cdma network - Google Patents

Abstract

The present invention relates to a method and system for transmitting and receiving a wideband code division multiple access (WCDMA) SMS (short message service) in a dual mode terminal roaming in a CDMA network.

In the CDMA network according to the present invention, the WCDMA SMS transmission method is a method of sending a WCDMA SMS from a dual-mode terminal roaming to a CDMA network, which includes: Generating a message according to the SMS format and storing the message in a format used for SMS transmission in CDMA; (b) setting an identifier indicating that the WCDMA format has been received and sending an SMS to a CDMA mobile exchange; (c) transmitting, at the mobile exchange, an SMS delivery request message to a dual-stack short service center along an SMS routing path; And (d) processing the SMS in the WCDMA mode on the basis of the identifier at the short service center.

WCDMA, SMS, Dual Mode, CDMA

Description

APPARATUS AND METHOD FOR PROCESSING WCDMA SMS IN CDMA NETWORK

The following drawings attached to this specification are illustrative of preferred embodiments of the present invention, and together with the detailed description of the invention to serve to further understand the technical spirit of the present invention, the present invention is a matter described in such drawings It should not be construed as limited to

1 is a block diagram showing the configuration of a code division multiple access (CDMA) network in which the present invention is realized.

2 is a flowchart illustrating an SMS sending procedure according to an embodiment of the present invention.

3 is a flowchart illustrating an SMS incoming procedure according to an embodiment of the present invention.

4 is a flowchart illustrating a procedure for changing USIM information using SMS according to another embodiment of the present invention.

5 is an exemplary diagram illustrating parameters and meanings of SMS request messages in CDMA and WCDMA formats.

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

100 ... CDMA network system 110 ... Mobile communication terminal

130 MSC 160 Dual Stack Short Message Service Center

The present invention relates to a short message service for a dual-mode terminal roaming in a code division multiple access (CDMA) network, and more particularly, to a broadband code division multiple access in a dual mode terminal roaming a CDMA network. WCDMA) A method for sending and receiving SMS (Short Message Service).

With the recent rapid development of electronic engineering and communication engineering, mobile communication terminals have various functions. That is, with the rapid development of wireless communication and data processing technology, people can use not only voice calls but also Internet access, video communication and video message transmission using mobile communication terminals. Also, due to the rapid spread of mobile communication terminals, mobile communication terminals are becoming an essential means of communication in modern life, such as a considerable amount of communication occurring in human relations through mobile communication terminals.

Short message service (SMS) or voice message service that can quickly transfer simple information to the other of the various functions of the mobile communication terminal is widely used. This SMS service has the advantage of being able to quickly and easily deliver the desired information to a specific counterpart or a plurality of counterparts at a very low cost compared to voice calls, and to store the received text message for later checking or rechecking. Due to these advantages, SMS is widely used not only for providing securities, weather, news, education information, etc., but also for providing payment information (price, item history, account information, etc.) in electronic payment services.

In addition, as mobile communication technology continues to develop, it is gradually spreading from code division multiple access (CDMA) to wide code division multiple access (WCDMA). In the reality that these two methods coexist, roaming technology that can use both communication networks has emerged. In order to use both networks using this roaming technology, a dual mode / dual band terminal is used in which the terminal operates according to the method when roaming in each network.

The above-mentioned short message service also has a different processing method according to the CDMA method and the WCDMA method. Instead of the short message service center (SMSC) that processes the short message service, the dual message service can support both methods. By developing and using a dual-stack short service center, it is possible to process short messages between each other.

However, in the existing dual stack short message service center, when processing different types of short messages, the SMS function of each method cannot be fully utilized, and only the common part of the two methods or the simple message delivery function are provided. For example, in the case of a special type of SMS used in WCDMA rather than a general SMS (when divided and transmitted or encrypted and transmitted), there is a problem in that it cannot be transmitted to a CDMA network.

In addition, a dual mode terminal supporting both CDMA and WCDMA in a situation where a CDMA network and a WCDMA network coexist has a problem of separately developing a CDMA-SMS client and a WCDMA-SMS client to process SMS. In particular, by developing two different SMS clients separately, there is a problem in that a specification for compatibility is added because the specifications are different from each other.

The present invention has been made to solve the above problems, and the object of the present invention is to enable an SMS to send and receive all functions supported by the WCDMA method even in a CDMA network and a WCDMA network.

Another object of the present invention is to enable a WCDMA SMS service in a CDMA network even if only a WCDMA client exists among SMS clients of a dual mode terminal supporting both CDMA and WCDMA schemes.

Other objects and advantages of the invention will be described below and will be appreciated by the practice of the invention. Furthermore, the objects and advantages of the present invention can be realized by means and combinations indicated in the appended claims.

In order to achieve the above object, a method for processing an SMS sent from a dual mode terminal roaming in a CDMA network according to the first aspect of the present invention to the WCDMA standard,

(1) in an originating CDMA mobile exchange housing the dual mode terminal,

(a) receiving an identifier indicating a WCDMA scheme and a short message formatted in a WCDMA scheme from the dual mode terminal;

(b) sending the short message to a short service center in the form of an SMDPP message;

(2) At the short message service center,

(c) checking whether there is an identifier in the message indicating the SMS for WCDMA;

(d) processing the short message by mapping a CDMA parameter of the SMDPP request message to a WCDMA parameter if the identifier exists.

In addition, a method for receiving an SMS of WCDMA standard to a called terminal roaming to a CDMA network according to the second aspect of the present invention,

(1) In short-service center of CDMA network,

(a) receiving an SMS from the core network of the calling party and obtaining profile information and location information of the called party from a home location register accommodating the called party;

(b) if the called subscriber is a WCDMA subscriber, generating bearer data formatted in the WCDMA standard and setting an identifier for WCDMA;

(c) sending a short message including the bearer data and an identifier to a destination mobile switch in the form of a SMDPP message; And

(2) in the called-side mobile exchange,

(d) transmitting the short message to the called terminal.

A dual mode mobile communication terminal for sending / outgoing voice and short messages in a CDMA network and a WCDMA network according to a third aspect of the present invention,

Means for generating a short message written by a user when roaming on a CDMA network according to the WCDMA SMS format, storing the short message in a format used for CDMA SMS transmission / reception, and setting and sending an identifier indicating that the WCDMA format is used;

Determining means for checking an identifier of the received SMS and delivering the received SMS to a corresponding SMS client; And

And means for extracting data according to the WCDMA format contained in the message of the CDMA SMS format.

An apparatus belonging to a CDMA core network for processing SMS sent from a dual mode terminal roaming a CDMA network according to the fourth aspect of the present invention according to the WCDMA standard,

(1) means for receiving an SMDPP message including an identifier indicating a WCDMA scheme and a short message formatted in the WCDMA scheme from a calling CDMA mobile exchange;

(2) means for checking whether there is an identifier in the SMDPP message indicating that it is an SMS for WCDMA;

(3) means for processing the short message by mapping the CDMA parameter of the SMDPP message to a WCDMA parameter, if the identifier exists.

In addition, the apparatus belonging to the CDMA core network for receiving the WCDMA standard SMS to the destination terminal roaming in the CDMA network according to the fifth aspect of the present invention,

(1) means for receiving an SMS from the calling CDMA mobile switching center and obtaining profile information and location information of the called party from a home location register accommodating the called party;

(2) means for generating bearer data formatted in the WCDMA standard and setting an identifier for WCDMA when the called subscriber is a WCDMA subscriber;

(3) means for transmitting the short message including the bearer data and the identifier to the called-party mobile exchange in the form of an SMDPP message.

According to a sixth aspect of the present invention, there is provided a method for changing information of a USIM mounted on a called terminal roaming in a CDMA network.

(1) At short message service center,

(a) receiving an SMS including USIM information change request information of the called terminal from a USIM management center (UMC), and obtaining profile information and location information of the called subscriber from a home location register accommodating the called subscriber;

(b) if the called subscriber is a WCDMA subscriber roaming on a CDMA network, generating bearer data formatted in the WCDMA standard and setting an identifier for WCDMA;

(c) sending a short message including the bearer data and an identifier to a destination mobile switch in the form of a SMDPP message;

(2) in the called terminal,

(d) checking an identifier of the short message received through the called-side mobile exchange and extracting data according to a WCDMA format from the bearer data if it is determined that the SMS is for WCDMA;

(e) processing the USIM according to the USIM information change request information included in the extracted data.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the specification and claims should not be construed as having a conventional or dictionary meaning, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention. Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

First, Fig. 1 shows the configuration of a code division multiple access (CDMA) network in which the present invention is realized.

As shown in the figure, the mobile telephone system 100 for processing an SMS according to the present invention includes a plurality of subscriber stations 110 located within a communication area divided by sectors, the subscriber station 110 and a wireless device. A base station controller (BTS) 121 that communicates, a base station controller (BSC) 122 that controls the base station 121; Mobile exchanger 130; Visitor Location Register (VLR) 135; NO. 7 network 140; A home location register (HLR) 150; It includes a Short Message Service Center (SMSC) (160).

In addition to the basic call processing and location registration functions, the subscriber station 110 is responsible for the attachment and origination of a short message (SMS). In addition, the subscriber station 110 may have a function of receiving and outputting a multimedia message (MMS).

The subscriber station 110 according to the present invention is a dual-mode / dual-band terminal that can be used in both a CDMA network and a WCDMA network. When the dual mode terminal includes a CDMA client and a WCDMA client and is located in an area of the network, the dual mode terminal operates to roam and communicate according to the scheme.

In particular, the subscriber station 110 according to the present invention generates a short message in a WCDMA format when roaming and operating in a CDMA network, and SMS bearer data of an SMDPP request message (a message used for SMS transmission in a CDMA network). It is possible to send through CDMA network by inserting into parameter. The SMS is transmitted using the SMDPP request message to pass through the CDMA network. However, by inserting the SMS parameter format for WCDMA into the SMS Bearer Data parameter of the SMDPP request message, the SMS function for WCDMA can be used after SMS transmission. do.

FIG. 5 shows a comparison between the parameters of the CDMA SMS request message and the WCDMA SMS request message and their meanings.

Referring to FIG. 5, the WCDMA scheme defines and uses an SMS request message called MO_FORWARD SM, and the CDMA scheme defines and uses an SMS request message called SMDPP (Short Message Delivery Point to Point). Except for the parameters indicating the address of the calling party and the called party, most of the parameters indicating the SMS function are included in the SM_RP_UI and the CDMA method is included in the SMS Bearer Data.

The radio access network 120 serves to guarantee the mobility of the subscriber station, and performs hand-off and radio resource management functions. The wireless access network 120 is composed of a base station 121 and a base station controller 122 so that the subscriber station 110 uses a wireless protocol between the subscriber station 110 and the mobile switch 130. 7 allows access to network 140. In particular, the base station 121 receives a short message from the calling subscriber station (hereinafter referred to as calling terminal) using a paging channel or a traffic channel in the signal channel and transmits it to the base station controller 122. The base station controller 122 controls the base station 121, and assigns and releases radio channels for the subscriber station, transmit power control of the subscriber station and the base station, intercell soft handoff and hard handoff determination, transcoding and Performs vocoding, operation and maintenance of the base station.

The mobile exchange 130 performs basic and additional service processing, incoming and outgoing call processing of subscribers, location registration and handoff procedure processing, interworking with other networks, and the like. In addition, the visitor location register 135 temporarily and stores the location and subscriber information of the subscriber station located in the communication area of the mobile switching center 130.

The home location register 150 stores and manages subscriber information, additional service information for each subscriber, and location information of a mobile communication terminal. In particular, the home location register 150 stores profile information of the calling and called terminals. This profile information includes the subscriber terminal's MSISDN (subscriber telephone number), IMSI (mobile telephone serial number), subscribed telecommunication supplementary service information, and the like.

The dual stack short service center (DS-SMSC) 160 processes a basic service for SMS and temporarily stores or delivers data for processing a short message. In addition, it performs a gate function for a short service, performs a short service MAP (Mobile Application Part) processing function for interworking with the mobile switch 130 and the home location register 150, and for interworking with an external service provider. It also performs protocol matching. In particular, as a dual stack, SMS of both CDMA and WCDMA networks can be handled.

In particular, when the short message service center 160 according to the present invention receives the SMDPP request message via the CDMA network, the short message (SMS) included in the SMDPP request message is extracted by extracting the identifier from the SMS_TID (see FIG. 5) included therein. Determine the format of the. Here, the identifier is used to symbolize that the subscriber station 110 generates the SMS in the WCDMA format and inserts it into the CDMA parameter. If it is determined that the WCDMA format is inserted in the SMDPP request message, the short message is converted into the WCDMA format. This conversion process includes mapping SMS_OA of SMDPP request message to RP_OA of WCDMA MO FORWARD SM request message and extracting SM_RP_UI parameter inserted in SMS Bearer Data. In addition, when the SMS for WCDMA is received by a subscriber station roaming in a CDMA network, the SMS_TID is set to insert the WCDMA parameter into the SMS Bearer Data parameter of the SMDPP request message. In this way, both the CDMA network and the WCDMA network can process the SMS in the WCDMA format, it is possible to implement a short message service center 160 that supports a complete WCDMA SMS function instead of the existing limited conversion.

Hereinafter, a method for sending a WCDMA SMS from a dual mode terminal roaming a CDMA network and a method for receiving a WCDMA SMS from a dual mode terminal roaming a CDMA network based on the system and technical spirit of the present invention described above. It explains in detail.

2 is a flowchart illustrating a procedure for sending a WCDMA SMS in a CDMA network according to an embodiment of the present invention.

Referring to FIG. 2, in the SMS transmission method according to the present invention, a user first creates a short message in a dual mode terminal 110 roaming in a CDMA network.

The originating terminal 110 generates the short message created in the WCDMA format, and then sends the short message generated in the WCDMA format through the CDMA network. The format of the WCDMA scheme is the RP_UI parameter (see FIG. 5) of the WCDMA MO FOWARD SM request message. Accordingly, the RP_UI parameter is inserted into the SMS Bearer Data of the SMDDMA request message of the CDMA scheme. In this way, the inserted WCDMA parameter is recognized as a message used in the CDMA network and can penetrate each node.

When generating the SMDPP request message, an identifier is set in the SMS_TID parameter of the SMDPP request message to indicate that a parameter for WCDMA has been inserted. The identifier is then used to identify whether the SMDPP request message includes a parameter for WCDMA.

The SMS generated in the WCDMA format at the originating terminal 110 is transmitted to the mobile switching center 130 via the CDMA wireless access network 120.

The mobile exchange 130 requests the incoming call of the SMS to the short service center 160 according to the SMS routing method. (15, 16)

The short service center 160 receives the SMDPP request message and determines whether the SMS format for WCDMA is inserted by inquiring the SMS_TID included in the message. At this time, if it is determined that the WCDMA format is inserted in the SMDPP request message, the SMS is processed in the WCDMA mode, and otherwise, the SMS is processed in the normal CDMA mode.

Meanwhile, when the short message service center 160 receives the SMDPP request message, the short message service center 160 transmits an smdpp-ack indicating that the message has been received to the mobile exchange 130, and the mobile exchange 130 receives the smdpp-ack. 110, a message indicating that the SMS transmission was successful is transmitted. (17, 18)

3 is a flowchart illustrating a procedure of receiving a WCDMA SMS in a CDMA network according to an embodiment of the present invention.

Referring to FIG. 3, the SMS receiving method according to the present invention first receives an SMS transmitted through a CDMA network or a WCDMA network at the short message service center 160.

The short message service center 160 queries the home location register to query the called subscriber to forward the received SMS. At this time, if it is confirmed that the called subscriber is a roaming subscriber to the CDMA network, routing information to the mobile switch 130 of the corresponding CDMA network is obtained.

Since the called subscriber is roaming in the CDMA network, the RP_UI parameter for WCDMA is inserted when generating the SMS Bearer Data parameter of the SMDPP request message. As such, by inserting the WCDMA parameter into the SMDPP request message transmitted from the CDMA network, the receiving subscriber can be provided with the SMS that fully supports the SMS function for the WCDMA. Of course, the terminal of the called subscriber should have a function to extract and use the inserted WCDMA parameters. (23)

In addition, after completing the insertion of the WCDMA parameter, the short service center 160 sets an identifier indicating that the WCDMA parameter has been inserted into the SMDPP request message. This is for the receiver subscriber terminal to easily determine whether or not a WCDMA parameter is inserted in the received SMS. The identifier is included in the SMS_TID parameter of the CDMA SMDPP request message shown in FIG.

As such, the SMDPP request message in which the WCDMA parameter is inserted and the identifier is set is transmitted to the CDMA mobile switch 130, and the mobile switch 130 transmits it to the called subscriber station 110 via the wireless access network 120. (25, 26)

The terminating subscriber station 110 receives the SMS, checks the SMS_TID parameter included therein, checks whether the WCDMA format parameter is inserted, and delivers the SMS processing to the WCDMA SMS client. Here, the WCDMA SMS client extracts a WCDMA parameter from the delivered SMS, and processes and displays a short message according to the WCDMA SMS function defined by the parameter.

When the SMS is received by the destination terminal 110, an SMS transmission response message indicating that the SMS has been transmitted is transmitted to the mobile exchange 130, and the mobile exchange 130 transmits an SMDPP ACK message to the short service center 160. Send a notification that the SMS transmission is complete. (28,29)

In particular, by assigning and setting a paging / access channel, a traffic channel, and a Layer 2 ack and a Layer 3 ack according to the WCDMA SMS attributes among the attributes of the SMS_TID parameter, security and efficiency can be controlled. The WCDMA SMS attribute is divided into the TP-PID of the SM_RP_UI parameter shown in FIG.

Hereinafter, an example of changing the information of the USIM card installed in the WCDMA terminal by using the method of the present invention in which a WCDMA SMS is received in a CDMA network will be described.

4 illustrates a procedure of changing USIM card information of a terminal roaming in a CDMA network according to another embodiment of the present invention.

4, in order to change the information of the USIM card, the USIM card management center transmits the USIM card information change request to the short service center. At this time, the SMS function of the WCDMA method is used, and the TP-PID of the SM_RP_UI parameter is used. That is, the USIM message is set and used in the attribute of the TP-PID (31).

Thereafter, according to the above-described method of the present invention, an SMS in which the WCDMA format is inserted is delivered from the short service center to the destination terminal via the mobile switch. (32, 33)

The terminal checks the SMS_TID and forwards the SMS to a WCDMA SMS client.

The WCDMA SMS client checks the TP-PID included in the SMS, confirms that the message is a USIM message, and delivers the SMS to the USIM client. The USIM client requests an information change to the USIM card by performing an information change command on the USIM card based on the information indicated by the SMS. (35, 36)

The USIM card receiving the request changes the corresponding information and transmits a response message indicating that the USIM card has been changed.

Thereafter, the terminal transmits an SMS transmission response message to the mobile exchange, and in turn, transmits a response to the request to the short service center and the USIM card management center, thereby completing (39, 40, 41).

As described above, the present invention provides a method for changing information of a USIM card using SMS to a terminal roaming in a CDMA network.

The terms or words used in this specification and claims are not to be construed as limiting in their usual or dictionary meanings, and the inventors may appropriately define the concept of terms in order to best explain their invention in the best way possible. It should be interpreted as meaning and concept corresponding to the technical idea of the present invention based on the principle that the present invention.

Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

The present invention provides an effect that can support all the functions of the WCDMA SMS by improving the process of sending or receiving the SMS for WCDMA in the mobile communication terminal roaming in the CDMA network.

In addition, the present invention improves the dual-mode terminal and the SMS processing system to handle SMS in the WCDMA method in both the CDMA network and WCDMA network, to reduce the cost of processing the distinction between the two methods and to unify the procedure to provide.

In addition, it provides an effect that can be processed by using the SMS for WCDMA to change the information of the USIM card mounted on the terminal while roaming in the CDMA network.

Claims (13)

A method for processing an SMS sent from a dual mode terminal roaming a CDMA network according to the WCDMA standard. (1) in an originating CDMA mobile exchange housing the dual mode terminal, (a) receiving an identifier indicating a WCDMA scheme and a short message formatted in a WCDMA scheme from the dual mode terminal; (b) sending the short message to a short service center in the form of an SMDPP message; (2) At the short message service center, (c) checking whether there is an identifier in the message indicating the SMS for WCDMA; (d) processing the short message by mapping the CDMA parameter of the SMDPP request message to a WCDMA parameter, if the identifier is present, in a CDMA network. The method of claim 1, The WCDMA standard SMS processing method of the CDMA network, characterized in that the WCDMA-formatted parameter is a WCDMA MO FORWARD SM request message parameter SM_RP_UI. The method of claim 1, And the identifier is included in the SMS_TID parameter of the SMDPP message. The method of claim 2 or 3, In step (d), the SMS_OA and SMS Bearer Data of the SMDPP request message are mapped to the RP-OA and RP-UI of the MO FORWARD SM. Way. A method of receiving a WCDMA standard SMS to a called terminal roaming a CDMA network, (1) In short-service center of CDMA network, (a) receiving an SMS from the core network of the calling party and obtaining profile information and location information of the called party from a home location register accommodating the called party; (b) if the called subscriber is a WCDMA subscriber, generating bearer data formatted in the WCDMA standard and setting an identifier for WCDMA; (c) sending a short message including the bearer data and an identifier to a destination mobile switch in the form of a SMDPP message; And (2) in the called-side mobile exchange, (d) converting the short message to the WCDMA standard in a CDMA network, comprising transmitting the short message to the called terminal. The method of claim 5, The bearer data formatted according to the WCDMA standard is generated by mapping SMS bearer data of the CDMA standard to SM_RP_UI of the WCDMA standard, and converting the short message to the WCDMA standard in the CDMA network. The method of claim 5, And the identifier is included in SMS_TID, which is a CDMA SMDPP message parameter, to convert a short message into a WCDMA standard in a CDMA network. In a dual mode mobile communication terminal for receiving and sending voice and short messages in a CDMA network and a WCDMA network, Means for generating a short message written by a user when roaming on a CDMA network according to the WCDMA SMS format, storing the short message in a format used for CDMA SMS transmission / reception, and setting and sending an identifier indicating that the WCDMA format is used; Determining means for checking an identifier of the received SMS and delivering the received SMS to a corresponding SMS client; And And means for extracting data according to a WCDMA format stored in a CDMA SMS format message. The method of claim 8, wherein the determining means And checking the identifier set in the received short message to indicate the WCDMA standard, and transmitting the short message to the SMS client for WCDMA. A device belonging to a CDMA core network for processing SMS sent from a dual mode terminal roaming a CDMA network according to the WCDMA standard. (1) means for receiving an SMDPP message including an identifier indicating a WCDMA scheme and a short message formatted in the WCDMA scheme from a calling CDMA mobile exchange; (2) means for checking whether there is an identifier in the SMDPP message indicating that it is an SMS for WCDMA; (3) means for processing the short message by mapping a CDMA parameter of the SMDPP message to a WCDMA parameter, if the identifier is present. A device belonging to a CDMA core network for receiving a WCDMA standard SMS to a called terminal roaming in a CDMA network, (1) means for receiving an SMS from the calling CDMA mobile switching center and obtaining profile information and location information of the called party from a home location register accommodating the called party; (2) means for generating bearer data formatted in the WCDMA standard and setting an identifier for WCDMA when the called subscriber is a WCDMA subscriber; (3) means for sending a short message comprising said bearer data and an identifier to a destination mobile exchange in the form of a SMDPP message. A method of changing information of a USIM mounted on a called terminal roaming on a CDMA network, (1) At short message service center, (a) receiving an SMS including USIM information change request information of the called terminal from a USIM management center (UMC), and obtaining profile information and location information of the called subscriber from a home location register accommodating the called subscriber; (b) if the called subscriber is a WCDMA subscriber roaming on a CDMA network, generating bearer data formatted in the WCDMA standard and setting an identifier for WCDMA; (c) sending a short message including the bearer data and an identifier to a destination mobile switch in the form of a SMDPP message; (2) in the called terminal, (d) checking an identifier of the short message received through the called-side mobile exchange and extracting data according to a WCDMA format from the bearer data if it is determined that the SMS is for WCDMA; and (e) processing the USIM according to the USIM information change request information included in the extracted data. The method of claim 12, The bearer data formatted in the WCDMA standard is generated by mapping SMS bearer data of the CDMA standard to SM_RP_UI of the WCDMA standard, and the identifier is roamed in a DMA network, which is included in the SMS_TID which is a CDMA SMDPP message parameter. How to change the USIM information of the terminal.

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