KR20080043103A - Method and system for interworiking between converged ip messging service and short messaging service - Google Patents

Abstract

An interworking system between a converged IP(Internet Protocol) messaging service and an SMS(Short Message Service) and a method thereof are provided to implement interactive message exchange through CPMs(Converged IP Messages) and SMs(Short Messages) by enabling a receiving side to process received messages in the order transmitted from a transmitting side in case a CPM service user consecutively sends messages to an SMS user. If a CPM to be delivered to an SM terminal is received from a CPM terminal, a CPM server transmits a Normal_Size_CPM1 message to an IWF(Interworking Function)(401). The IWF converts the CPM into an SM and transmits it to an SM server through an SMS_SUBMIT1 message(403). Receiving the SMS_SUBMIT1 message, the SM server transmits an SMS_DELIVER1 message to the SM terminal(405). The SM terminal transmits a DELIVERY_REPORT1 message to the SM server(411). The SM server converts the DELIVERY_REPORT1 message into a STATUS_REPORT1 message and transmits it to the IWF(413). While waiting for the STATUS_REPORT1 message, the IWF receives a Normal_Size_CPM2 message and a Large_Size_CPM3 message from the CPM server(407,409). If the STATUS_REPORT1 message is received, the IWF converts the two CPMs into SMs or SM segments, creates the second transmission group which consists of three SM segments, and transmits the SM segments to the SM server in sequence(415,419,421). The SM server converts all the received SM segments into SMS_DELIVER messages and transmits them to the SM terminal. In this case, the SM server transmits one SMS_DELIVER message, then receives a corresponding DELIVERY_REPORT message, and then transmits the next SMS_DELIVER message.

Description

Interworking system and method between integrated IP message service and short message service {METHOD AND SYSTEM FOR INTERWORIKING BETWEEN CONVERGED IP MESSGING SERVICE AND SHORT MESSAGING SERVICE}

1 is a diagram illustrating a conventional short message service system configuration;

2 is a diagram illustrating a configuration of an integrated IP message service system according to an embodiment of the present invention;

3 is a view showing the operation of the IWF according to the first embodiment of the present invention;

4 is a diagram illustrating a process of changing a format of an integrated IP message to a short message format by the IWF according to the first embodiment of the present invention;

5 illustrates an example of combined IED field values according to a first embodiment of the present invention;

6 is a view showing the operation of the integrated IP message service system according to the first embodiment of the present invention;

7 is a view showing the operation of the IWF according to the second embodiment of the present invention;

8 is a view showing the operation of the integrated IP message service system according to a second embodiment of the present invention;

9 illustrates an example of combined IED field values according to a second embodiment of the present invention;

10 is a diagram illustrating a process of processing a short mesh segment received by a short message terminal according to a third embodiment of the present invention;

11 is a diagram showing the operation of the integrated IP message service system according to the third embodiment of the present invention;

TECHNICAL FIELD The present invention relates to messaging services, and in particular, to interworking systems and methods between integrated IP message services and short message services.

The messaging service is an interactive or interactive service that provides user-to-user communication through a storage device with accumulated transmission electronic mailboxes and message handling functions. The instant messaging (IM) service and the short message (SMS) are provided. Service), MMS (Multimedia Messaging Service), and Push to Talk Over Cellular (PoC) services.

In general, IM service means a service that integrates functions such as chat and file transmission and reception through a specific program in the Internet environment. Recently, with the development of mobile communication services, personal mobile communication terminals such as mobile phones are also providing IM services capable of real-time communication, which were provided by computers through the Internet. PoC service applies half-duplex communication to mobile communication service. The IM service and the PoC service are SIP (Session Initiation Protocol) based messaging services, and after establishing a session between the transmitting and receiving client terminals, transmit and receive messages to perform message communication.

On the other hand, SMS is a service that exchanges short text between subscribers, and performs message communication without setting up a session. The SM client stores the text entered by the user in the User Data section of the SMS-SUBMIT to the SM server and sends it to the SM server. The SM server converts SMS-SUBMIT to SMS-DELIVER and sends it to the SM client corresponding to the receiving address. The SM client receiving the message notifies the receipt of the message by sending an SMS-DELIVERY-REPORT in response. At this time, even if the SMS-SUBMIT is converted to SMS-DELIVER, the text entered by the user is retained. The network structure of such an SMS is shown in FIG. 1 is a diagram illustrating a conventional short message service system configuration. Referring to FIG. 1, the SMS network includes a short message (SM) server 1, an SMS-GMSC / SMS-IWMSC 3, and a mobile service switching center (MSC) / serving general packet radio service support node (SGSN). (5), an HLR (Home Location Register) 7, a VLR (Visitor Location Register) 9, and a terminal 11.

The terminal 11 creates an SM to be transmitted and sends it to the MSC or SGSN 5. At this time, when the size of the message to be transmitted exceeds the specified size, the terminal 11 transmits a message having a large size divided into a number of standardized small size messages, that is, a segment. Upon receiving this, the receiving terminal combines the segments into a single message and provides the de-segmentation to the user. Thus, in order for the receiving terminal to recombine and restore the original message by recombining the SM transmitted by the transmitting terminal to the original message, the transmitting terminal needs to transmit the combined information to the segment TP. -Insert into the user data (TP-User Data, hereinafter referred to as 'TP-UD') as the Concatenation Information_Element_Data field (hereinafter referred to as the 'Concatenation IED field'). The concatenation IED field consists of three octets, and the meanings of each octet are shown in Table 1 below.

Concatenation Information_Element_Data (based on 8-bit reference number) Octet1 Concatenated short message reference number (0-255)  Octet2 Total number of segments in concatenated short message (0 255) Octet3 Sequence number of each segment (1 255)

The numbers in parentheses indicate the range each octet can represent.

When the MSC 5 receives the SM from the terminal 11, the MSC 5 receives the necessary information from the VLR 9, determines whether there is an error in the received information, and transmits the SM to the SMS-IWMSC 3 if there is no error. . If the terminal transmits the SM to the SGSN 5, the SGSN 5 detects the RP-DA parameter included in the SM and transmits a message to the SMS-IWMSC 3 if there is no error. Upon receiving the SM, the SMS-IWMSC 3 receives necessary information from the HLR 7 and transmits the received message to the SM server 1. The SM server 1 stores the SM received from the transmitting terminal 11 and transmits it to the SMS-GMSC 3. When the SMS-GMSC 3 receives the message, the SMS-GMSC 3 receives information necessary for routing from the HLR 7 and delivers the information to the corresponding MSC or SGSN 5. Upon receiving the SM, the MSC 5 receives the location information of the receiving terminal from the VLR 9 and transmits the SM to the corresponding terminal. If the SGSN 5 receives the SM from the SMS-GMSC 3, the SGSN 5 checks whether there is an error in the message and then transmits the message to the corresponding terminal if there is no error.

The SMS provided as described above currently provides an interworking service of the MMS, and an interworking service between Internet e-mail services. However, there are no SIP-based messaging services, for example interworking services with IM services.

The present invention provides a system and method capable of interworking between a SIP-based messaging service and an SMS that can solve the above problems.

In order to achieve the above object, the present invention provides an Interworking Function (IWF) connected to a Converged Internet Protocol Message (CPM) server supporting a Converged Internet Protocol Messaging service and a short message server supporting a short message service. A method of providing interworking between the servers, the method comprising: receiving at least one Converged Internet Protocol message (CPM) from a CPM server, which is a short message terminal supporting only a short message service; Converting a message format of a CPM into a message format of a short message service, dividing the converted one or more messages into one transmission group, and transmitting the message to the short message server, and the one or more messages transmitted from the short message server Before receiving the corresponding response message for each It includes a step of transmitting by treatment according to the process of the new CPM CPM message received from the group server, after receiving all of the response message.

In the present invention, in the process of dividing the converted one or more messages into a single transmission group to a short message server supporting a short message service, converting the one or more CPM messages into respective short messages; Determining whether a short message larger than the maximum transmission allowance size exists among the converted short messages; and if the short message larger than the maximum transmission allowance size exists, allowing the short transmission message larger than the maximum transmission allowance size to allow the maximum transmission. Dividing based on the size, and if the total number of short messages is two or more, in each short message, a transmission group number for distinguishing the transmission group, the total number of short message segments constituting the transmission group, and the total number of short messages. Indicates which of the short message segments is the short message segment. And a step of, by including the binding information including a sequence number generating a short message with the segment, sending the short message and the short message segment to the short message server.

In the present invention, the combined information is included by setting each Octet value of the Concatenation IED field of the short message, the transmission group number is Octet1 value, the total number of short message segments is Octet2 value, the sequence number is Octet3 value Set it.

In addition, the present invention provides a Converged Internet Protocol Message (CPM) server supporting a Converged Internet Protocol Messaging service and an Interworking Function (IWF) connected to a short message server supporting a short message service. A method for providing working, the method comprising: receiving, from a CPM server, at least one Converged Internet Protocol message (CPM), which is a short message terminal supporting only a short message service, and briefly determining a message format of the at least one CPM. Converting the converted message into a message format of a message service, dividing the converted one or more messages into a first transmission group to the short message server, and receiving one or more new CPM messages from the short message server. CPM message format of short message service Converting the converted one or more messages into a second transmission group that sets a message processing priority lower than the message processing priority of the first transmission group, and transmits the converted one or more messages to the short message server. .

In the present invention, in the process of dividing the converted one or more messages into a first transmission group to a short message server supporting a short message service, converting the one or more CPM messages into respective short messages; Determining whether a short message larger than the maximum transmission allowable size exists in each of the converted SMs; and if a short message larger than the maximum transmission allowable size exists, the short message larger than the maximum transmission allowable size is transmitted to the maximum transmission allowable size. A step of dividing the transmission group into each short message, a transmission group number indicating a message processing priority of the transmission group, a total number of short message segments constituting the transmission group, A number of short message segments of the total short message segments Generating a short message segment by including combining information including a sequence number; and transmitting the short message segment.

In the present invention, the combined information is included by setting each Octet value of the Concatenation IED field of the short message, the transmission group number is Octet1 value, the total number of short message segments is Octet2 value, the sequence number is Octet3 value Set.

The present invention also provides a Converged Internet Protocol Message (CPM) server that supports a Converged Internet Protocol Messaging service, a short message server that supports a short message service, and an Interworking Function (IWF) connected to each server. A method for providing interworking between the respective servers of a CPMS system comprising: the at least one CPM (Converged), wherein the IWF is a short message terminal in which a receiving side supports only a short message service from a Converged Internet Protocol Message (CPM) server. Internet Protocol Message), and the IWF converts the received CPM into a short message, and each converted short message includes location information including the corresponding short message in the CPM corresponding to the short message. Generating a short message segment by including the combined information; Transmitting a short message segment to the short message server; and when the short message terminal receives the short message segment through the short message server, referring to the combining information included in the short message, Processing and providing it to the user.

In the present invention, in the process of generating the short message segment by the IWF, converting the at least one CPM message into each short message, and whether there is a short message larger than the maximum transmission allowable size among the converted SMs. Determining, if there is a short message larger than the maximum transmission allowance size, dividing the short message larger than the maximum transmission allowance size based on the maximum transmission allowance size, and distinguishing a transmission group from each short message. And a transmission group number indicating a message processing priority of the transmission group, a maximum number of short message segments that can be included in the transmission group, and a number of short message segments according to the division order among the maximum short message segments. And the CPM corresponding to the corresponding short message Including the combined information including information for distinguishing when the short message is included last and when the corresponding CPM includes only the short message, and when the corresponding short message is not included in the corresponding CPM at the end. Generating a short message segment and transmitting the short message segment.

In the present invention, the combined information is included by setting each Octet value of the Extended Concatenation IED field of the short message, the transmission group number is an Octet1 value, the total number of short message segments is an Octet2 value, and the sequence number is an Octet3 value. By the way, the included position is set to the value of Octet4.

In the present invention, in the process of providing the short message segment to the user by the short message terminal, receiving the short message segment, and receiving the short message segment and the short message segment stored before the reception. Determines the value of the Extended Concatenation IED field, and is the largest set of short message segments having the same values of Octet1 and Octet2 in the Extended Concatenation IED field of each short message segment, and having one or more consecutive Octet3 values. Detecting a short message segment chain which is a set including a short message segment having a value of Octet4 of 1 among the short message segments having the largest value of Octet3 among the short message segments to which the short message segment belongs, and a short message included in the detected short message segment chain. Message seg Processing the short message segments included in the detected short message segment chain if the Octet3 value is equal to the counter value, and storing the received short message segment if not the same; storing the received short message segment; And if the value of Octet2 and Octet3 of the last short message segment of the message segment chain is the same, initialize the value of the counter to 1, and if not, increase the value of Octet3 of the short message segment by one.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Note that the same components in the drawings are represented by the same reference numerals and symbols as much as possible even though they are shown in different drawings. In addition, in describing the present invention, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

Messaging services such as IM (Instant Message), Short Message Service (SMS), Multimedia Messaging Service (MMS), and Push to Talk Over Cellular (PoC) services use different protocols depending on the type of service. Therefore, there are messaging services that are not compatible with each other. For example, a SIP-based IM service that establishes a session and performs messaging communications and an SMS service that performs messaging communications without establishing a session are not compatible with each other. You cannot receive it.

Thus, there is a need for a new type of integrated messaging service that integrates messaging services such as IM services, SMS, MMS, and PoC services. This integrated messaging service is hereinafter referred to as a Converged Internet Protocol Messaging service (hereinafter referred to as "CPM service"). The CPM service is a SIP-based service. Since the CPM service should be able to freely communicate with not only the user of the integrated messaging service but also the existing messaging service user, the CPM service may be interworked with the existing SMS, IM service, MMS, PoC service, etc. interworking should be possible. Furthermore, a session must be established to enable interworking between a messaging service that performs communication and a messaging service that performs communication without establishing a session.

In other words, in order to receive a message between A and A who use CPM service and A using SMS, IWF (Interworking Function) is required to connect CPM service and SMS. IWF performs several functions, one of which is the conversion of message formats between CPM messages and SMs. As a result, A sends a CPM message, but A receives a SM message. Conversely, A sends a SM message, but A receives a CPM message. However, because the messaging services used by the two users are different, problems may arise when A sends a message to L. In the event that you send a message to us, if you send CPM continuously at short intervals, the order in which you send the message may differ from the order in which you receive the message. That is, a message transmitted first may be received later, and a message transmitted later may be received first. In such a situation, if the receiving terminal processes the messages in the order in which they are received, the contents of the message may be reversed, and thus, Eol will have a hard time understanding what the message is intended to convey. Accordingly, in order to solve this problem, the present invention intends to implement a system and method for processing the message according to the order in which the message is transmitted, not the order in which the receiving terminal receives the message.

In order to solve the above problems, the present invention provides three embodiments, the first embodiment of the present invention solves the conventional SMS system operation without changing, and the second and third embodiments of the present invention are conventional SMS. The solution is to add new functionality to the system's behavior.

In the conventional SMS, when the sending terminal attempts to transmit an SM, if the message size exceeds a specified size, the receiving terminal receives the message instead of transmitting the larger message into smaller messages, that is, the SM segments. Insert the information necessary for the message, that is, the Concatenation IED field, so that the messages can be combined and restored to the original message. In the first and second embodiments of the present invention, a message is transmitted to a receiving terminal by inserting a concatenation IED field in which an appropriate value is set according to the present invention in the process of converting a CPM received from a CPM server into an SM segment. It is to convey order information. According to the first embodiment of the present invention, when the receiving terminal receives these messages, it can process the received messages in a manner that the existing SMS service processes the messages, so that the conventional SM service system can be utilized as it is.

Hereinafter, to facilitate understanding of the present invention, terms used for dividing and transmitting the divided SM and the non-divided SM as necessary in the message transmission process will be used. SM refers to a message in SM format that does not include a Concatenation IED field. It is used in the same manner as a message generally used in an existing SMS service. The SM segment refers to a message in SM format including a Concatenation IED field. I use it.

In the first embodiment of the present invention, if the IWF receives the CPM from the CPM server while waiting for a response message for the SM segment previously transmitted to the SM server, the CW server does not immediately process the data and stores the received CPM. After the message is received, the stored message is processed. An embodiment of the present invention uses STATUS_REPORT as a reception response message. In the second embodiment of the present invention, even when the IWF waits for a response message, when the CW receives the CPM, the second embodiment immediately converts the segment to the SM server. A more detailed method will be described through an operation process and an embodiment of the IWF. The third embodiment of the present invention uses the newly defined Extended Concatenation IED field in place of the Concatenation IED field used in the first and second embodiments to inform the receiving terminal of the transmission order of messages.

2 illustrates a configuration of a CPM service system to which the embodiments of the present invention are applied. 2 is a diagram illustrating a CPM service system configuration according to an embodiment of the present invention. 2, the CPM service system includes a Converged Internet Protocol Message (CPM) terminal 10, a Converged Internet Protocol Message (CPM) server 20, an Interworking Function (IWF) 30, and a Short Message (SM) server ( 40) and a short message (SM) terminal 50, and although not shown, includes an MMS server, a PoC server, an IM server, and the like.

The CPM terminal 10 is a client supporting the CPM service, and forms a Converged Internet Protocol Message (CPM) for one-way message communication according to a user's selection and transmits it to the CPM server 20 or CPM for interactive message communication. This configuration is transmitted to the CPM server 20. And it receives and processes the various messages according to the message communication from the CPM server 20, and provides the contents of the message to the user as needed or according to the user settings.

The CPM server 20 stores subscriber information of a plurality of CPM terminals and terminals performing a conventional messaging service, and processes messages related to message communication received from the sender CPM terminal 10. That is, when the CPM server 20 receives the CPM from the sending CPM terminal device 10, the CPM server 20 searches the subscriber information stored in advance to determine the type of messaging service supported by the receiving terminal, and supports the receiving terminal. According to the CPM, the next destination of the received CPM is transmitted. For example, if the receiving terminal is a CPM terminal, the CPM server 20 changes the received CPM into a message format according to the CPM service method and transmits the received CPM directly to another CPM server or a receiving terminal to which the receiving terminal is connected. If the receiving terminal is not a CPM terminal, but a terminal supporting only a conventional messaging service, the CPM server 20 transmits the received CPM to the IWF 40.

When receiving the CPM from the CPM server 20, the IWF 30 determines the type of message service supported by the receiving terminal. If necessary, the IWF 30 changes the message format of the received CPM into a message format corresponding to the messaging service supported by the receiving terminal according to the identified message service type. For example, it transmits to SM server 40, MMS server, PoC server, and IM server. The message received from the SM server 40, the MMS server, the PoC server, and the IM server is converted into a CPM format, if necessary, and transmitted to the CPM server 20. Accordingly, the IWF 30 stores messaging service subscriber information, and stores various message formats and conversion programs corresponding to each messaging service.

In particular, the IWF 30 converts the CPM transmitted to the SM terminal 50 into an SM or SM segment according to each embodiment of the present invention. A detailed process will be described below with reference to FIGS. 3 to 11.

The SM server 40 is a server supporting the SMS service, and converts the SM or SM segment of the SMS-SUBMIT format received from the IWF 30 into the SMS-DELIVER according to the present invention and transmits it to the SM terminal 50. . When the receiving terminal receives the SMS-SUBMIT, which is the CPM terminal 10, from the SM terminal 50, the receiving terminal converts the SMS-DELIVER to the IWF 30.

The SM terminal 50 includes the text input by the user in the SMS-SUBMIT and transmits it to the SM server 40. When the SM terminal 50 receives the SMS-DELIVER which is the SM transmitted by the other terminal from the SM server 40, According to the setting, it informs that the SM has been received or displays the included text contents. At this time, when the SM terminal 50 receives the SM segment through SMS-DELIVER, the SM terminal 50 combines the received SM segment into one SM and provides it to the user. When the SM client 50 receives the SMS-DELIVER, the SM client 50 transmits an SMS-DELIVERY-REPORT to the SM server 40 to notify that the SM has been received without error.

In the CPM service system configured as described above, a process of transmitting the CPM transmitted from the CPM terminal 10 to the SM terminal 50 according to the first embodiment of the present invention is as follows. In the present invention, the Concatenation IED field used in the SMS is used, but its purpose and meaning of each Octet are different from the Concatenation IED field used in the SMS. In SMS, one SM exceeding a message allowable size is used to transmit the SM by dividing it into smaller SMs. The meaning of each Octet is as described in Table 1 above. However, in the present invention, the Concatenation IED field is used to provide the SM receiver with transmission sequence information of SM messages sequentially transmitted at short intervals in addition to the existing uses in SMS. Table 2 shows.

 Concateantion IED field (based on 8-bit reference number) Octet1 Transmission group number (0-255)  Octet2 Total number of SM segments that make up a transmission group (0-255) Octet3 Sequence number of each SM segment belonging to the transmission group (1-255)

 The numbers in parentheses indicate the range each Octet can represent.

The transmission group is a maximum message unit that can be processed simultaneously after the receiving SM terminal 50 receives the messages. That is, if the message received by the receiving SM terminal 50 is SM, since the SM is processed as a single message, one SM forms one transmission group. If the received message is an SM segment, the transmission group means a set of SM segments that can be combined by the receiving SM terminal 50. Therefore, in this case, the transmission group is formed of at least two SM segments, and may include an SM.

3, after the IWF 30 converts the CPM received from the CPM server 20 to the SM segment using the Concatenation IED field according to the first embodiment of the present invention, the SM server 20 Referring to the process of transmitting to the following. 3 is a diagram showing the operation of the IWF 30 according to the first embodiment of the present invention. Referring to FIG. 3, when the first CPM is received from the CPM server 20 in step 101, the IWF 30 proceeds to step 103. In step 103, the IWF 30 converts the received CPM into an SM message or an SM segment according to the conversion algorithm shown in FIG. 4 is a diagram illustrating a process of changing the format of the CPM to the SM format by the IWF 30 according to the first embodiment of the present invention. Referring to FIG. 4, the IWF 30 converts at least one or more CPMs received in step 101 according to the SM message format in step 201, and proceeds to step 203. In step 203, the IWF 30 determines whether the size of the SM converted in step 201 exceeds the maximum message size allowed by the SMS, and if so, proceeds to step 205. If not, the IWF 30 proceeds to step 207. In step 205, the IWF 30 divides the SM into SMs of appropriate size, and proceeds to step 209. The appropriate size means a maximum value among the values for minimizing the number of SM segments generated while the size of the SM segments generated by the present algorithm does not exceed the maximum message size allowed by the SMS. In step 207, the IWF 30 preserves the SM without dividing the SM generated in step 201, and proceeds to step 209. In step 209, the IWF 30 repeats steps 203 to 207 for the number of SMs generated in step 201 and proceeds to step 211. In step 211, the IWF 30 determines whether the number of SMs generated in step 207 is two or more, and proceeds to step 213 if two or more, and proceeds to step 215 if less than two. Since the total number of SMs generated as a result of performing steps 201 to 209 is one, the IWF 30 maintains the SMs generated in step 215, and one SM message thus maintained is used for one transmission group. Form. In operation 213, the IWF 30 inserts a concatenation IED field into each SM to convert two or more SMs into SM segments. The transformed SM segments form one transport group, and a method of determining an inserted Concatenation IED field value is illustrated in FIG. 5. 5 is a diagram illustrating an example of concatenation IED field values according to the first embodiment of the present invention. Referring to FIG. 5, it is assumed that the IWF 30 first receives the first CPM 300 and subsequently receives the second CPM 310. The first CPM 300 includes three SM segments, namely, a first SM segment (SMS_SUBMIT (X, 5,1)) 301, a second SM segment (SMS_SUBMIT (X, 5,2)) 303, and a third SM segment. (SMS_SUBMIT (X, 5,3)) 305, and the second CPM 310 is divided into two SM segments, that is, a fourth SM segment (SMS_SUBMIT (X, 5,4)) 311 and a fifth SM segment. Assume that (SMS_SUBMIT (X, 5,5)) is divided into 313. In this case, numbers in parentheses in the SM segments mean values of Octet1, Octet2, and Octet3 in the Concatenation IED field in order from the left. In the embodiment of Figure 5, the value of Octet1 is referred to as 'x' for convenience. And since the total number of SM segments is five, Octet2 is five. The value of Octet3 always starts from 1, and the first SM segment of the first received CPM becomes 1, and the values of Octet3 of the remaining SM segments are sequentially determined.

Returning to FIG. 3, when the conversion of the received CPM to the SM or SM segment is completed according to the above process, the IWF 30 transmits the converted SM or SM segment to the SM server 40 in step 105. At this time, the SM segment is transmitted first from the segment having a small value of Octet3 in the Concatenation IED field. Thereafter, in step 107, when the IWF 30 receives the new CPM from the CPM server 20, the IWF 30 proceeds to step 109. In step 109, the IWF 30 checks whether all received response messages (STATUS_REPORT) corresponding to each SM or SM segment transmitted to the SM server 40 are received in step 105, and if all have been received, proceeds to step 103. 4 to 5 and the steps 105 and 107 are performed. However, if any received response message (STATUS_REPORT) corresponding to each SM or SM segment transmitted to the SM server 40 in step 105 is not received, the IWF 30 proceeds to step 111 to process the received CPM. After storing, the process proceeds to step 107 to wait for a new CPM reception or a reception response message not yet received. That is, the IWF 30 transmits the SM and SM segments generated at the same time point from at least one CPM to the SM server 40 according to the first embodiment of the present invention, and correspond to each of the transmitted SM and SM segments. Before receiving all of the received response messages, the process is suspended even if a new CPM is received.

In the above, only operations of the IWF 30 according to the first embodiment of the present invention have been described with reference to FIGS. 3 to 5. Hereinafter, an operation process of the entire CPM service system according to the first embodiment of the present invention will be described with reference to FIG. 6. 6 is a diagram illustrating an operation of a CPM service system according to a first embodiment of the present invention.

When the receiving terminal receives the CPM designated as the SM terminal 50 from the CPM terminal 10, the CPM server 20 transmits Normal_Size_CPM1, which is the first CPM, to the IWF 30 in step 401. Normal_Size_CPM means that when converted to SM, the size of the message does not exceed the size allowed by SMS. Since the CPM received in step 401 is a normal size (Normal_Size), the IWF 30 converts the CPM into an SM instead of an SM segment, and transmits the CPM to the SM server 40 using SMS_SUBMIT in step 403. Here, SMS_SUBMIT1 is an SM message format for Normal_Size_CPM1. At this time, the IWF 30 sets the TP-STATUS-REPORT-REQUEST header field of SMS_SUBMIT appropriately to check whether the SM message or the SM segment transmitted to the SM server 40 is transmitted without error to the SM terminal 50. do. Upon receiving SMS_SUBMIT1 in step 403, the SM server 40 transmits SMS_DELIVER1 to the receiving SM terminal 50. When the SM terminal 50 receives the SMS_DELIVER1 in step 405, the SM terminal 50 processes the received SM in the existing SMS. Thereafter, the SM terminal 50 transmits the DELIVERY_REPORT1 to the SM server 40 in step 411 in response to receiving the SMS_DELIVER1. The SM server 40 converts the DELIVERY_REPORT1 to STATUS_REPORT1 and transmits it to the IWF 30 in step 413.

Meanwhile, the IWF 30 receives two CPMs (Normal_Size_CPM2 and Large_Size_CPM3) from the CPM server 20 in steps 407 and 409 while waiting for a reception response message for the first transmission group SMS_SUBMIT1, that is, STATUS_REPORT1. Save the messages. Large_Size_CPM means a message that exceeds the message size allowed by the SMS service. In the first embodiment of the present invention, it is assumed that the size of Large_Size_CPM3 is larger than the allowable size of SMS and not more than twice the allowable size. Then, when the IWF 30 receives STATUS_REPORT1 in step 413, the IWF 30 converts the two stored CPMs (Normal_Size_CPM2 and Large_Size_CPM3) into SM or SM segments according to the conversion algorithm of FIG. do. In the embodiment of FIG. 6, the second transmission group is composed of three SM segments, SMS_SUBMIT (1,3,1), SMS_SUBMIT (1,3,2), and SMS_SUBMIT (1,3,3). SMS_SUBMIT (i, j, k) means an SM message format for transmitting an SM segment, and i, j, and k in parentheses mean octets 1, 2, and 3 in order. The SMS_SUBMIT (1,3,1) are SM segments generated from Normal_Size_CPM2, and the SMS_SUBMIT (1,3,2) and SMS_SUBMIT (1,3,3) are SM segments generated from Large_Size_CPM3. The IWF 30 transmits the three or more SM segments to the SM server 40 in steps 415, 419, and 421, respectively, in order of the value of Octet3 in decreasing order.

When the SM server 40 receives the SM segment, SMS_SUBMIT (i, j, k), it converts all SM segments in the same transmission group into SMS_DELIVER (i, j, k). The SM server 40 sequentially transmits the SMS_SUBMIT (i, j, k) to the SM terminal 50 in the order received from the IWF 30. At this time, the SM server 40 transmits one SMS_DELIVER (i, j, k), and then receives SMS_DELIVER (i, j, k) in the following order after receiving the corresponding DELIVERY_REPORT. Therefore, in the embodiment shown in FIG. 6, the SM server 40 transmits the SMS_DELIVER (1, 3, 1) in step 417, and then sends the DELIVERY_REPORT (1, 3, 1) from the SM terminal 50 in step 423. After the reception, the SMS_DELIVER (1, 3, 3) is transmitted in step 427. After receiving the DELIVERY_REPORT (1, 3, 3) from the SM terminal 50 in step 429, and transmits SMS_DELIVER (1, 3, 2) in step 433. The number in parentheses of DELIVERY_REPORT is used to indicate that it is a delivery report for a corresponding SM segment, and the Concatenation IED field is not inserted into the report message. In addition, when the SM server 40 receives the DELIVERY_REPORT from the SM terminal 50, the SM server 40 converts the STATUS_REPORT to the IWF 30 (steps 425, 431, and 437).

In receiving the three SM segments transmitted by the IWF 30, the SM terminal 50 may have a different order of receiving the SM segments from the IWF 30 to the SM server 40. For example, in FIG. 6, the SM terminal 50 receives SMS_DELIVER (1,3,3) in step 427, and receives SMS_DELIVER (1,3,2) in step 433, and SMS_DELIVER (1,3,3). ) Was received before SMS_DELIVER (1,3,2). However, the receiving terminal waits until all three segments are received because the receiving terminal cannot combine and process all three segments into one message. When all three segments are received, an operation is generated according to the terminal user's setting, such as combining and generating one message to notify the terminal user of the message or displaying the combined message.

Meanwhile, in order to help the understanding of the SM format message used in FIG. 6, the meaning thereof is as follows.

SMS_SUBMIT / SMS_SUBMIT (i, j, k): This is the message format sent by SM terminal to SM server in SMS system. The numbers in parentheses mean the value of Octec1, Octet2, and Octet3 in the Concatenation IED field in order from the leftmost.

SMS_DELIVER / SMS_DELIVER (i, j, k): Message format used by the SM server to send to the SM receiver. The numbers in parentheses mean the values of Octec1, Octet2, and Octet3 in the Concatenation IED field inserted in order from the leftmost.

DELIVERY_REPORT / DELIVERY_REPORT (i, j, k): Responds to the receipt of the message sent back to the SM server when the SM receiver receives SMS_DELIVER (i, j, k) from the SM server. Used for ACK and Negative ACK. The numbers in parentheses and the parenthesis are used to indicate that the delivery report is for the corresponding SM segment for convenience of explanation. The Concatenation IED field is not inserted into the report message.

STATUS_REPORT / STATUS_REPORT (i, j, k): The SM message originating terminal (IWF 30 in FIG. 6) receives the STATUS_REPORT from the SM server, thereby determining whether the receiving terminal receives the previously transmitted SM message. To receive this message, the TP-STATUS-REPORT-REQUEST header field of SMS_SUBMIT must be set as specified by the SMS service. Likewise, because of the report, the Concatenation IED field is not inserted.

The meaning of each SM format message described above is similarly applied to FIGS. 8 and 11.

As described above, according to the first embodiment of the present invention, the IWF 30 further receives the received CPM until it receives the STATUS_REPORT (receive response message) for the previously transmitted transmission group (SM or SM segments). After storing without processing, after receiving STATUS_REPORT, a new transmission group is created by applying the conversion algorithm of FIG. 3 and then transmitted to the SM server 40. Although this scheme may provide interworking between the CPM terminal and the SM terminal without changing the existing SMS standard, the time may be delayed while the IWF 30 waits for the STATUS_REPORT. In the SM terminal 50, the priority according to the transmission order from the IWF 30 between SM segments belonging to the same transmission group is guaranteed, but not between SM messages belonging to different transmission groups. In order to solve this problem, in the second embodiment of the present invention, when the IWF 30 receives a new CPM from the CPM server 20 even while waiting for the STATUS_REPORT for a previously transmitted message, it is transmitted to the SM server 40. In addition to making it possible, a method of ensuring priority according to the transmission order from the IWF 30 between messages belonging to different transmission groups will be described. The second embodiment of the present invention uses the value of Octet1 in the Concatenation IED field to confirm the priority between transmission groups prior to processing the message received at the receiving SM terminal. In other words, the smaller the value of Octet1 is, the higher the priority is. The SM server 40 preferentially processes the transmission group with the smaller value of Octet1 since it is transmitted from the IWF 30 first. Although the first embodiment does not insert the Concatenation IED field when the transmission group is composed of one SM, the second embodiment always inserts the Concatenation IED field and converts it into an SM segment. This is so that the transmission order can be checked even between transmission groups consisting of one message. To this end, the second embodiment uses an algorithm in which the steps 211 and 215 are removed from the algorithm shown in FIG. 4 used in the first embodiment.

7 shows the operation of the IWF 30 according to the second embodiment of the present invention. Unlike the process shown in FIG. 3, the process illustrated in FIG. 7 does not indicate a time point for receiving a response message for a previously transmitted SM segment, which may be any time at which the reception response message is received. Because. Referring to FIG. 7, when the IWF 30 receives the CPM from the CPM server 20 in step 501, the IWF 30 proceeds to step 503. In step 503, the IWF 30 converts the CPM into an SM segment according to a conversion algorithm, and proceeds to step 505. In step 505, the IWF 30 transmits the transmission group composed of the SM segments converted in step 503 to the SM server 40, and proceeds to step 501 to repeat the above process. In the above process, the conversion algorithm for converting the CPM to the SM message format is similar to the process shown in FIG. 4, but in the second embodiment of the present invention, even when the transmission group is composed of one SM, a Concatenation IED field must be inserted. do. When the receiving SM terminal 50 receives the SM segments belonging to different transmission groups, the message of the group having the small transmission group number is processed first.

8 is a diagram illustrating an operation process of the CPM service system according to the second embodiment of the present invention described above. Referring to FIG. 8, in step 601, the CPM server 20 transmits the first CPM, Normal_Size_CPM1, to the IWF 30. Upon receiving Normal_Size_CPM1, the IWF 30 converts Normal_Size_CPM1 into SMS_SUBMIT (1,1,1), which is an SM segment, according to the conversion algorithm in which 215 and 211 have been removed from the algorithm shown in FIG. 40). In the first embodiment, the Concatenation IED field is not added in the case of a transmission group composed of one SM. The SM server 40 converts the SMS_SUBMIT (1,1,1) received in step 603 into SMS_DELIVER (1,1,1) and transmits it to the receiving SM terminal 50 in step 605. When the receiving SM terminal 50 receives the SMS_DELIVER (1,1,1), it recognizes that it is the first SM segment of the transmission group consisting of a total of one SM segment from the Concatenation IED field, and does not have to wait for receiving another message immediately. Process. The SM terminal 50 transmits DELIVERY_REPORT (1,1,1) to the SM server 40 in step 609, and the SM server 40 sends STATUS_REPORT (1,1,1) to DELIVERY_REPORT (1,1,1). ) Is transmitted to the IWF 30 in step 613.

Meanwhile, the CPM server 20 transmits Large_Size_CPM2 to the IWF 30 in step 607. In the second embodiment, it is assumed that the size of Large_Size_CPM2 is larger than the maximum allowable size of the SM and not more than twice the maximum allowable size. The IWF 30 receives two large SM segments, SMS_SUBMIT (2,2,1) and SMS_SUBMIT (2,2,2) according to the conversion algorithm in which the received Large_Size_CPM2 is removed from step 211 and step 215 in the algorithm shown in FIG. Convert to In operation 611 and 615, the IWF 20 sequentially transmits the values of Octet3 to the SM server 40 in the order of decreasing value of Octet3. At this time, the IWF 30 does not receive STATUS_REPORT (1,1,1) from the SM server 40 in step 613, but transmits SMS_SUBMIT (2,2,1) at step 611 regardless of this. The IWF 30 transmits SMS_SUBMIT (2,2,1) having a small Octet3 value earlier than SMS_SUBMIT (2.2.2), but the SM server 40 sends SMS_SUBMIT (2.2.2) first because of network conditions. It is assumed that the SMS_SUBMIT (2, 2, 1) is received after a predetermined time, that is, after step 631. Accordingly, the SM server 40 first converts the received SMS_SUBMIT (2, 2, 2) to the SMS_DELIVER (2, 2, 2) and transmits it to the receiving SM terminal 50 in step 617. The SM terminal 50 may check that the SM segment received from the Concatenation IED field of the SMS_DELIVER (2,2,2) is the second SM segment of the second transmission group including a total of two SM segments. Therefore, the SM segment is stored without processing until the first SM segment of the same transmission group is received. The SM terminal 50 transmits DELIVERY_REPORT (2, 2, 2) to the SM server 40 in step 621 in response to receiving the SM segment. The SM server 40 converts the received DELIVERY_REPORT (2,2,2) to STATUS_REPORT (2,2,2) and transmits it to the IWF 30 in step 625.

Meanwhile, before receiving STATUS_REPORT (2,2,2) in step 625, the IWF 30 receives Normal_Size_CPM3 from the CPM server 20 in step 619, and uses SMS_SUBMIT (3,1,) from the Normal_Size_CPM3 using a conversion algorithm. After generating 1) and transmits to the SM server 40 in step 623. The SM server 40 converts the SMS_SUBMIT (3,1,1) into the SMS_DELIVER (3,1,1) and transmits the SMS_SUBMIT (3,1,1) to the SM terminal 50 in step 627. The SM terminal 50 confirms that the SM segment received from the Concatenation IED field of SMS_DELIVER (3,1,1) is the first SM segment of the third transmission group consisting of one SM segment in total. Therefore, since the SM terminal 50 has received all the SM segments belonging to the third transmission group, but did not process the second transmission group, the SM terminal 50 stores the SMS_DELIVER (3, 1, 1) without processing. The SM terminal 50 transmits the DELIVERY_REPORT (3, 1, 1) to the SM server 40 in step 629 in response to the segment reception. The SM server 40 converts the DELIVERY_REPORT (3,1,1) received in step 629 to STATUS_REPORT (3,1,1) and sends it to the IWF 30, and immediately afterwards, the IWF 30 in step 611. In step 633, the SMS_SUBMIT (2,2,1) received by the SRS is transmitted and the SMS_DELIVER (2,2,1) is transmitted to the SM terminal 50. SM terminal 50 confirms that the SM segment received from SMS_DELIVER (2,2,1) is the first SM segment of the second transmission group, and then stores the received SM segment (SMS_DELIVER (2,2,1)). Process with SMS_DELIVER (2,2,2). The processing follows the process of processing Concatenation SM in SMS service. The SM terminal 50 transmits a reception response message for the SMS_DELIVER (2, 2, 1), DELIVERY_REPORT (2, 2, 1), to the SM server 40 in step 635. Subsequently, since the SM terminal 50 processes the SM segment of the second transmission group, the SM terminal 50 processes the SMS_DELIVER (3, 1, 1) stored in step 629. When the SM server 40 receives the DELIVERY_REPORT (2, 2, 1), it converts it to STATUS_REPORT (2, 2, 1) and transmits it to the IWF (30).

When the SM terminal 50 receives the SM segment, the first and second embodiments described above wait until all SMs belonging to the transmission group are received until all SM segments belonging to the same transmission group as the received SM segments are received. Process segments at once. However, some users of the SM terminal 50 may prefer to display a message content to the user by progressively processing a part of the entire message rather than processing all the contents at once and displaying them on the screen. In order to satisfy the requirements of the user, the third embodiment of the present invention is a SM segment received if the received SM segments satisfy certain conditions even though the SM terminal 50 does not receive all SM segments belonging to the transmission group. Implement a method that can process part of and provide to user in advance.

The third embodiment according to the present invention regards all SMs or SM segments transmitted from the IWF 30 to the SM terminal 50 through the SM server 40 as one transmission group. That is, the values of Octet1 and Octet2 are the same for all SM segments transmitted from the IWF 30 to the SM server 40. In particular, the value of Octet2 is set to the largest value among the values that Octet2 can express. According to the SMS Service Standard, this value is 255 when using an 8-bit reference number and 65536 when using a 16-bit standard number. In addition, the third embodiment defines and uses an Extended Concatenation IED field in which Octet4 is newly added instead of the conventional Concatenation IED field.

The Extended Concatenation IED field is an extension of the conventional SM service and the Concatenation IED field used in the first embodiment, and adds one Octet, Octet4, in addition to the existing Octet1, Octet2, and Octet3. Octet1, Octet2, Octet3 means the same as in the first embodiment. The Octet4 is used to designate a range in which the receiving SM terminal 50 partially processes the received SM segments, and has a value of 0 or 1. Alternatively, one specific bit may be selected from eight bits of Octet4, and meaning may be given to a value (0 or 1) of the selected bit. In the following description, the former method is assumed.

According to the third embodiment of the present invention, the IWF 30 inserts the Extended Concatenation IED field instead of the Concatenation IED field when converting the CPM into the SM segment. Here, the values of Octet1 and Octet3 of the Extended Concatenation IED are calculated in the same manner as in the first embodiment, and the value of Octet2 is set to the largest value among the values that Octet2 can express. The value of Octet4 is the value of Octet4 of the SM segment converted from Normal_Size_CPM and the value of Octet4 of the SM segment corresponding to the last position of each Large_Size_CPM among the SM segments divided from Large_Size_CPM, and to distinguish the remaining cases except these two cases. For example, 1 may be set for the former and 0 may be set for the latter.

9 shows an example in which an Extended Concatenation IED field value is set. Referring to FIG. 9, it is assumed that the IWF 30 first receives the third CPM 320 and subsequently receives the fourth CPM 330. The third CPM 320 is divided into three SM segments, that is, SMS_SUBMIT (x, 255,1,0) 321, SMS_SUBMIT (x, 255,2,0) 323, and SMS_SUBMIT (x, 255,3). , 1) divided into 325, and the fourth CPM 330 is divided into two SM segments, that is, SMS_SUBMIT (x, 255,4,0) 331 and SMS_SUBMIT (x, 255,5,1) (333). Divided. In the SM segment, that is, SMS_SUBMIT (i, j, k, l), numbers in parentheses mean values of Octet1, Octet2, Octet3, and Octet4 in the Extended Concatenation IED field from left to right. The value of Octet1 and the value of Octet3 are obtained in the same manner as described in the first embodiment, and Octet2 is always determined to be 255 when using an 8-bit reference number. The value of Octet4 is the SM segment corresponding to the last positions of the third CPM 320 and the fourth CPM 330, that is, SMS_SUBMIT (x, 255,3,1) 325 and SMS_SUBMIT (x, 255,5,1) Only 333 is 1 and the value of Octet4 of the remaining SM segments is 0.

Since the SM terminal 50 receiving the SM segment generated according to the third embodiment can partially process the SM segments, the SM terminal 50 can process up to several SM segments based on the value of Octet3 when the partial processing is performed. The next SM segment to be processed must be stored. Accordingly, the SM terminal 50 stores the counter value as a value obtained by adding 1 to the Octet3 value of the previously processed SM segment. The counter value becomes the Octet3 value of the first SM segment of the SM segment chain to be processed next, and the initial value of the counter is 1. The counter value changed according to the SM segment processing is not deleted unless the message communication with the CPM terminal 10 is terminated or the power of the SM terminal 50 is turned off. The SM terminal 50 grasps the SM segment chain in order to process a plurality of SM segments sequentially according to the division order. One SM segment chain is the largest set of SM segments having the same values of Octet1 and Octet2 in the Extended Concatenation IED field of each SM segment and having one or more consecutive Octet3 values, and among the SM segments belonging to the set, Octet3 The SM segment of which the value of Octet4 of the largest SM segment is 1 must be included. For example, SMS_DELIVER (a, b, c, 0), SMS_DELIVER (a, b, c + 1,1), SMS_DELIVER (a, b, c + 2,1), SMS_DELIVER (a, b, c + 5 Among the SM segments of, 0), SMS_DELIVER (a, b, c, 0), SMS_DELIVER (a, b, c + 1,1), SMS_DELIVER (a, b, c + 2,1) represent one SM segment chain. However, SMS_DELIVER (a, b, c, 0) and SMS_DELIVER (a, b, c + 1,1) alone cannot form one SM segment chain. This is because the values of Octet1 and Octet2 of the two SM segments are the same, but not the largest set of SM segments having one or more consecutive values of Octet3. As another example, if the received SM segment is only SMS_DELIVER (a, b, c, 1), SMS_DELIVER (a, b, c, 1) forms an SM segment chain. According to a third embodiment of the present invention, the operation of the SM terminal 50 for processing the received SM segment by identifying the counter and the SM segment chain is shown in FIG.

Referring to FIG. 10, when the SM terminal 50 receives the SM segment in step 701, the SM terminal 50 proceeds to step 703 to determine a stored counter value and an extended concatenation IED field value of the received SM segments, and proceeds to step 705. In step 705, the SM terminal 50 determines whether there is an SM segment chain starting with the SM segment whose value of Octet3 is the value of the counter. That is, the SM terminal 50 determines whether the SM segment chain exists according to the SM segment previously received and stored and the Extended Concatenation IED field values of the SM segment received in step 701. As described above, the SM segment chain is the largest set of SM segments having the same values of Octet1 and Octet2 in the Extended Concatenation IED field of each SM segment and having one or more consecutive Octet3 values and belonging to the set. The SM segment whose value of Octet4 is 1 of the SM segment having the largest value of Octet3 among the segments is included. Therefore, we identify the set of SM segments that satisfy these conditions. The SM terminal 50 checks whether the smallest Octet3 value among the Octet3 values of the SM segments belonging to the identified SM segment chain is the same as the counter value. As a result, if there is an SM segment chain starting from the SM segment whose value of Octet3 is the value of the counter, the flow proceeds to step 707. If not, the flow proceeds to step 709 to store the SM segment and proceeds to step 701 to the next SM segment. Wait for reception. In step 707, the SM terminal 50 processes and provides all segments included in the SM segment chain to the user, and proceeds to step 711. In step 711, the SM terminal 50 compares Octet2 and Octet3 values of the last SM segment of the segment chain, and determines whether the last SM segment of the transmission group has been processed according to the same. If the last SM segment has been processed, proceed to step 713 to initialize the counter value to 1; if the last SM segment is not processed, proceed to step 715 to set the counter value to Octet3 +1 value of the last SM segment of the SM segment chain. The flow proceeds to step 701 to wait for reception of the next SM segment.

11 shows the operation of the CPM service system according to the third embodiment of the present invention. In the embodiment of FIG. 11, it is assumed that the extended concatenation IED field uses an 8-bit reference number defined in the SMS standard specification. Referring to FIG. 11, the CPM server 20 transmits the first CPM, Normal_Size_CPM1, to the IWF 30 in step 801. As soon as the IWF 30 receives the Normal_Size_CPM1, the IWF 30 converts the SM segment into an SM segment and transmits the SMS segment to the SM server 40 through SMS_SUBMIT (1,255,1,1) in step 803. When the SM server 40 receives the SMS_SUBMIT (1,255,1,1), the SM server 40 converts the SMS_DELIVER (1,255,1,1) to the SM terminal 50. When the SM terminal 50 receives the SMS_DELIVER (1,255,1,1), the SM terminal 50 preferentially processes the SMS_DELIVER (1,255,1,1) by the algorithm of FIG. In operation 809, DELIVERY_REPORT (1,255,1,1) is transmitted to the SM server 40. The IWF 30 receives Large_Size_CPM2 from the CPM server 20 in step 807 while waiting for the STATUS_REPORT (1,255,1,1) from the SM server 40. It is assumed that the size of Large_Size_CPM2 is larger than the maximum allowable size of the SM and not more than twice the allowable size. As in the second embodiment, the IWF 30 immediately converts the SM segment into the SM server 40 upon receiving the message from the CPM server 20 without waiting for the reception response message for the previously transmitted message. send. Accordingly, the IWF 30 converts Large_Size_CPM2 into two SM segments SMS_SUBMIT (1,255,2,0) and SMS_SUBMIT (1,255,3,1), and transmits them to the SM server 40 in steps 811 and 815, respectively. In this case, it is assumed that SMS_SUBMIT (1,255,2,0) is transmitted to the SM server 40 after step 827 due to delay in transmission due to a problem on the network. Accordingly, since the SM server 40 first receives the SMS_SUBMIT (1,255,3,1), the SM server 40 converts it to SMS_DELIVER (1,255,3,1) and transmits it to the SM terminal 50 in step 817. When receiving the SMS_DELIVER (1,255,3,1), the SM terminal 50 stores the SM segment without processing the SM segment by the algorithm of FIG. The DELIVERY_REPORT (1,255,3,1) is transmitted to the SM server 40 in step 823, and the SM server 40 converts it to STATUS_REPORT (1,255,3,1) and sends it to the IWF 30 in step 825. .

On the other hand, IWF 30 receives Large_Size_CPM3 from CPM server 20 while waiting for STATUS_REPORT (1,255,3,1) from SM server 40. It is assumed that the size of Large_Size_CPM3 is larger than the maximum allowable size of the SM and not more than twice the allowable size. Accordingly, the IWF 30 converts Large_Size_CPM3 into two segments SMS_SUBMIT (1,255,4,0) and SMS_SUBMIT (1,255,5,1) and transmits them in the SM server 40, 821 and 829. The SM server 40 receives the SMS_SUBMIT (1,255,4,0) from the IWF 30 and converts it to SMS_DELIVER (1,255,4,0) and transmits it to the SM terminal 50 in step 827. When receiving the SMS_DELIVER (1,255,4,0), the SM terminal 50 stores the received segment without processing the received segment by the algorithm of FIG. The DELIVERY_REPORT (1,255,4,0) is transmitted to the SM server 40 in step 833, and the SM server 40 converts it to STATUS_REPORT (1,255,4,0) in step 835 and transmits it to the IWF 30. .

On the other hand, the SM server 40 receives the SMS_SUBMIT (1, 255, 2, 0) from the IWF 30 immediately after transmitting the SMS_DELIVER (1, 255, 4, 0) in step 827. Accordingly, before transmitting SMS_SUBMIT (1,255,5,1), SMS_SUBMIT (1,255,2,0) is converted to SMS_DELIVER (1,255,2,0) and transmitted to the SM terminal 50 in step 837. When the SM terminal 50 receives the SMS_DELIVER (1,255,2,0), the SM segment SMS_DELIVER (1,255,2,0) received by the algorithm of Fig. 10 and the stored SMS_DELIVER (1,255,3,1) are given priority. Process. The DELIVERY_REPORT (1,255,2,0) is transmitted to the SM server 40 in step 838, and the SM server 40 converts it to STATUS_REPORT (1,255,2,0) and transmits it to the IWF 30. The SM server 40 converts the SMS_SUBMIT (1,255,5,1) received in step 829 from the IWF 30 into SMS_DELIVER (1,255,5,1) and transmits it to the SM terminal 50 in step 841. When receiving the SMS_DELIVER (1,255,5,1), the SM terminal 50 preferentially processes SMS_DELIVER (1,255,4,0) and SMS_DELIVER (1,255,5,1) by the algorithm of FIG. In operation 843, the DELIVERY_REPORT (1,255,5,1) is transmitted to the SM server 40, and the SM server 40 converts this to STATUS_REPORT (1,255,5,1) and transmits it to the IWF 30. As described above, when the CPM service user sends a continuous message to the SM service user, the SM terminal can process the message in the order of transmission from the sender rather than the order of receiving the message. To make it possible.

In the above description of the present invention, specific embodiments have been described, but various modifications may be made without departing from the scope of the present invention. Therefore, the scope of the present invention should not be defined by the described embodiments, but should be determined by the equivalent of claims and claims.

As described above, when the CPM service user sends a continuous message to the SM service user, the CPM service user can process the message in the order of transmission from the sender rather than the order of receiving the message. Enable message exchange.

Claims (20)

A Converged Internet Protocol Message (CPM) server supporting a Converged Internet Protocol Messaging service and an Interworking Function (IWF) connected to a short message server supporting a short message service provide interworking between the servers. In the method, Receiving at least one Converged Internet Protocol Message (CPM) from the CPM server, which is a short message terminal supporting only a short message service; Converting the message format of the one or more CPMs into a message format of a short message service, dividing the converted one or more messages into a single transmission group, and transmitting the message to the short message server; Processing a new CPM message received from the CPM server before receiving a response message corresponding to each of the transmitted one or more messages from the short message server, and transmitting and processing the new CPM message according to the above procedure after receiving all the response messages; Interworking method comprising a. The process of claim 1, wherein the converted one or more messages are classified into one transport group and transmitted to a short message server supporting a short message service. Converting the one or more CPM messages to respective short messages, Determining whether there is a short message larger than a maximum transmission allowable size among the converted short messages; Dividing a short message larger than the maximum transmission allowance size based on the maximum transmission allowance size if a short message larger than the maximum transmission allowance size exists; If the total number of short messages is two or more, each short message includes a transport group number for distinguishing the transport group, the total number of short message segments constituting the transport group, and a few short message segments of the total short message segments. Generating a short message segment by including combining information including a sequence number indicating recognition; Transmitting the short message and the short message segment to the short message server. The method of claim 2, wherein the combining information is included by setting each Octet value of the Concatenation IED field of the short message, the transmission group number is an Octet1 value, the total number of short message segments is an Octet2 value, and the sequence number is Octet3. Interworking method characterized in that the setting by the value. A Converged Internet Protocol Message (CPM) server supporting a Converged Internet Protocol Messaging service and an Interworking Function (IWF) connected to a short message server supporting a short message service provide interworking between the servers. In the method, Receiving at least one Converged Internet Protocol Message (CPM) from the CPM server, which is a short message terminal supporting only a short message service; Converting the message format of the at least one CPM into a message format of a short message service, dividing the converted one or more messages into a first transmission group, and transmitting the message to the short message server; Receiving one or more new CPM messages from the short message server converts the message format of the one or more new CPMs into a message format of the short message service, and converts the converted one or more messages to the message processing priority of the first transmission group. And dividing it into a second transmission group having a low message processing priority and transmitting the same to the short message server. The method of claim 4, wherein the converted one or more messages are classified into a first transmission group and transmitted to a short message server supporting a short message service. Converting the one or more CPM messages to respective short messages, Determining whether there is a short message larger than a maximum transmission allowable size among the converted SMs; Dividing a short message larger than the maximum transmission allowance size based on the maximum transmission allowance size if a short message larger than the maximum transmission allowance size exists; In each short message, a transmission group number which distinguishes the transmission group and indicates a message processing priority of the transmission group, the total number of short message segments constituting the transmission group, and a few short messages among the total short message segments Generating a short message segment by including combining information including a sequence number indicating whether the message is a segment; Transmitting the short message segment. The method of claim 5, wherein the combining information is included by setting each Octet value of the Concatenation IED field of the short message, the transmission group number is an Octet1 value, the total number of short message segments is an Octet2 value, and the sequence number is Octet3. Interworking method characterized in that the setting by the value. CPMS system including a Converged Internet Protocol Message (CPM) server supporting a Converged Internet Protocol Messaging service, a short message server supporting a short message service, and an Interworking Function (IWF) connected to each server. A method of providing interworking between each of the servers of: Receiving, by the IWF, at least one Converged Internet Protocol Message (CPM), the short message terminal of which a receiving side supports only a short message service from a Converged Internet Protocol Message (CPM) server; The IWF converts the received CPM into a short message, and includes the combined information including the location information including the corresponding short message in the CPM corresponding to the short message in each converted short message. Creating process, Transmitting, by the IWF, the short message segment to the short message server; And when the short message terminal receives the short message segment through the short message server, processing the short message segment by providing the user with reference to the combined information included in the short message. Interworking method. The method of claim 7, wherein the generating of the short message segment by the IWF comprises: Converting the one or more CPM messages to respective short messages, Determining whether there is a short message larger than a maximum transmission allowable size among the converted SMs; Dividing a short message larger than the maximum transmission allowance size based on the maximum transmission allowance size if a short message larger than the maximum transmission allowance size exists; In each short message, a transmission group is identified and a transmission group number indicating a message processing priority of the transmission group, the maximum number of short message segments that can be included in the transmission group, and the division order among the maximum short message segments According to the sequence number indicating the short message segment, when the corresponding short message is included last in the CPM corresponding to the short message, and when the corresponding CPM includes only the corresponding short message; Generating a short message segment by including combining information including information distinguishing when the short message is not included at the end; Transmitting the short message segment. The method of claim 8, wherein the combining information is included by setting each Octet value of the Extended Concatenation IED field of the short message, the transmission group number is an Octet1 value, the total number of short message segments is an Octet2 value, and the sequence number is An interworking method according to claim 1, wherein the inclusion position is set to a value of Octet4. The process of claim 9, wherein the short message terminal processes the short message segment and provides the short message segment to a user. Receiving the short message segment; The Extended Concatenation IED field value of the short message segment stored in the short message segment and the received short message are grasped, and the values of Octet1 and Octet2 in the Extended Concatenation IED field of each short message segment are the same, and at least one consecutive Octet3 value. A short message segment chain that is the largest set of short message segments having a short message segment, and includes a short message segment having a value of Octet 4 of 1 in a short message segment having the largest value of Octet 3 among the short message segments belonging to the set. Detecting; If the Octet3 value of the short message segments included in the detected short message segment chain is the same as the counter value, the short message segments included in the detected short message segment chain are processed and provided to the user. Storing the short message segment; If the value of Octet2 and Octet3 of the last short message segment of the processed short message segment chain is the same, initialize the value of the counter to 1; otherwise, increase and store Octet3 value of the short message segment by 1; Interworking method characterized in that it comprises a. In a Converged Internet Protocol Messaging service system that provides interworking between an integrated IP message service and a short message service, Converged Internet Protocol Message (CPM) server supporting integrated IP message service, A short message server supporting a short message service, Receive one or more Converged Internet Protocol messages (CPMs), each of which is a short message terminal connected to each of the servers and supports only a short message service from a CPM server, and converts the message format of the one or more CPMs into a short message service. Converts the converted one or more messages into a single transmission group, sends the message to the short message server, and receives a response message corresponding to each of the sent one or more messages from the short message server. And a new CPM message received from a CPM server, and processes and transmits the new CPM message according to the above procedure after receiving all of the response messages. 12. The method of claim 11, wherein the IWF converts the at least one CPM message into each short message, determines whether there is a short message larger than the maximum transmission allowable size among the converted short messages, If there is a large short message, the short message larger than the maximum allowable transmission size is divided based on the maximum allowable transmission size, and if the number of total short messages is two or more, the transmission group for dividing the transmission group into each short message A short message segment is generated by including combining information including a number, a total number of short message segments constituting the transmission group, and a sequence number indicating a number of short message segments of the total short message segments; And send the short message segment to the short message server. CPMS system characterized in that. The method of claim 12, wherein the combining information is included by setting each Octet value of the Concatenation IED field of the short message, the transmission group number is an Octet1 value, the total number of short message segments is an Octet2 value, and the sequence number is Octet3. CPMS system, characterized in that set to a value. In a Converged Internet Protocol Messaging service system that provides interworking between an integrated IP message service and a short message service, Converged Internet Protocol Message (CPM) server supporting integrated IP message service, A short message server supporting a short message service, Receiving at least one Converged Internet Protocol Message (CPM), which is a short message terminal connected to each of the servers and supports only a short message service from a CPM server, and converts the message format of the at least one CPM into a short message service. Converts the converted one or more messages into a first transmission group and transmits the message format to the short message server, and when receiving one or more new CPM messages from the short message server, converts the one or more new CPM message formats. Converting the converted one or more messages into a message format of a short message service, and dividing the converted one or more messages into a second transmission group that sets a message processing priority lower than the message processing priority of the first transmission group and transmits the message to the short message server. Including IWF (Interworking Function) CPMS system. 15. The method of claim 14, wherein the IWF converts the one or more CPM messages into respective short messages, determines whether there is a short message larger than the maximum transmission allowance size among each of the converted SMs, and is larger than the maximum transmission allowance size. If a short message is present, the short message larger than the maximum transmission allowable size is divided based on the maximum transmission allowance size, and each of the short messages is divided into the transmission group, and transmission indicating a message processing priority of the transmission group. A short message segment is generated by including combining information including a group number, the total number of short message segments constituting the transmission group, and a sequence number indicating the number of short message segments of the total short message segments; CPMS system characterized by transmitting a message segment. 16. The method of claim 15, wherein the combining information is included by setting each Octet value of the Concatenation IED field of the short message, the transmission group number is an Octet1 value, the total number of short message segments is an Octet2 value, and the sequence number is Octet3. CPMS system, characterized in that set to a value. In a Converged Internet Protocol Messaging service system that provides interworking between an integrated IP message service and a short message service, Converged Internet Protocol Message (CPM) server that supports the Converged Internet Protocol Messaging service, A short message server supporting a short message service, Receive one or more Converged Internet Protocol Messages (CPMs), each of which is a short message terminal connected to each of the servers and supports only a short message service from a Converged Internet Protocol Message (CPM) server, and receives the received CPM. Converting to a short message, generating a short message segment by including combining information including location information including the corresponding short message in a CPM corresponding to the short message, and converting the short message segment An interworking function (IWF) for transmitting to the short message server; And when the short message segment is received through the short message server, the short message terminal for processing the short message segment and providing the short message segment to the user by referring to the combined information included in the short message. . 18. The method of claim 17, wherein the IWF converts the one or more CPM messages into respective short messages, determines whether there is a short message larger than the maximum transmission allowable size among each of the converted SMs, and is larger than the maximum transmission allowable size. If there is a short message, the short message larger than the maximum size allowed for transmission is divided based on the maximum size allowed for transmission, and each of the short messages is divided into a transmission group, and a transmission group indicating a message processing priority of the transmission group. A number, a maximum number of short message segments that can be included in the transmission group, a sequence indicating a number of short message segments according to the division order among the maximum short message segments, and the corresponding CPM corresponding to the short message. The short message is included last and the corresponding CPM A short message segment is generated by including combining information including only a message and information for distinguishing a case where the corresponding short message is not included in the corresponding short message at the corresponding CPM, and transmitting the short message segment; CPMS system. 19. The method of claim 18, wherein the combining information is included by setting each Octet value of the Extended Concatenation IED field of the short message, the transmission group number is an Octet1 value, the total number of short message segments is an Octet2 value, and the sequence number is The Octet3 value, wherein the inclusion position is set to the value of Octet4 CPMS system. 20. The short message terminal of claim 19, wherein the short message terminal receives the short message segment, grasps the value of the extended concatenation IED field of the received short message and the short message segment stored before the reception, and determines the short message segment. It is the largest set of short message segments having the same values of Octet1 and Octet2 in the Extended Concatenation IED field and having one or more consecutive Octet3 values, and has the largest value of Octet3 among the short message segments belonging to the set. Detect a short message segment chain that is a set including a short message segment having an Octet4 value of 1; and if the Octet3 value of the short message segments included in the detected short message segment chain is equal to a counter value, the detected short message Contained in the message segment chain The short message segments are processed and provided to the user. If the short message segments are not the same, the received short message segment is stored. If the Octet2 value and the Octet3 value of the last short message segment of the processed short message segment chain are the same, the counter value is the same. If the value is initialized to 1, and if it is not the same, Octet3 value of the short message segment is increased by 1 and stored.

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