KR101414462B1

KR101414462B1 - Mobile terminal and message service center, method for transfering message using the same

Info

Publication number: KR101414462B1
Application number: KR20080040554A
Authority: KR
Inventors: 김진식
Original assignee: 에스케이텔레콤 주식회사
Priority date: 2008-04-30
Filing date: 2008-04-30
Publication date: 2014-07-03
Also published as: KR20090114752A

Abstract

There is provided a mobile terminal and a message service center for increasing a transmission success rate of a message and effectively implementing a reservation transmission function, and a message transmission method using the same. The mobile terminal includes a buffer unit for receiving and temporarily storing a reservation dispatch message and a message control unit for popping up a reservation dispatch message in accordance with a popup time. The message service center includes a message storage unit for receiving a reservation dispatch message from the calling terminal, And a message reservation transmission unit for sending a reservation dispatch message to the destination terminal in advance before the pop-up time. The message transmission system includes an originating terminal for generating a reservation dispatch message, a message service center for dispatching a reservation dispatch message before a pop-up time, and a receiver terminal for popping up a reservation dispatch message stored in accordance with a pop-up time. The message transmission method includes a step of generating a reservation dispatch message, a step of sending a reservation dispatch message before a popup time, and a step of popping up a reservation dispatch message in accordance with a popup time.

Message, reservation function, SMSC, MMSC

Description

Technical Field [0001] The present invention relates to a mobile terminal and a message service center, and a message transmission method using the same. BACKGROUND ART [0002]

The present invention relates to a mobile terminal and a message service center, and more particularly, to a message transmission method using a mobile terminal and a message service center. More particularly, the present invention can increase the transmission success rate of a message even when traffic is overloaded at a specific time, , A mobile terminal and a message service center capable of preventing an overload and a down phenomenon caused by a throughput congestion of a message, and a message transmission method using the same.

Due to the development of mobile communication technology, the number of users of mobile communication service is rapidly increasing, and users' desire for the quality or kind of service is also increasing. In addition to the call service, the service providers provide various additional services such as a location tracking service, a calling number display service, and a multimedia service in order to satisfy users' desires.

A message service for transmitting a short message service (SMS) / multimedia messaging service (MMS) message is also one of these additional services. The message service is generated when the terminal user creates and transmits a message through the mobile terminal or the web and transmits the message to the user terminal of the called number designated through the SMS server or the MMS server of the mobile communication network.

By the way. In the conventional mobile communication network, when the outgoing traffic of a message runs in a similar time zone, or when a failure occurs in the devices constituting the mobile communication network such as a base station, or when the service quality deteriorates, the message transmission failure rate increases.

Meanwhile, the conventional reservation transmission function of the message service takes a method in which a message created by a sender is stored / stored in a server of a mobile communication network, and then the stored message is delivered to a destination terminal at a predetermined time.

Therefore, when the mobile communication network actually transmits the reserved message to the called terminal, there is a high risk that the message can not be delivered properly when the called party's exchanger, base station, wireless environment, etc. are poor. In particular, when a call is concentrated in the same time zone (for example, at the end of the year or an event), the transmission failure rate increases due to an overload of the SMS / MMS server and the mobile communication network, and the system overload adversely affects the entire service as a result.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in view of the above problems, and it is an object of the present invention to provide a message transmission method using a mobile terminal and a message service center, which can increase the transmission success rate of a message and correctly identify a message at a designated time during a reservation transmission.

It is another object of the present invention to provide a mobile terminal and a message service center capable of appropriately distributing traffic of a message to prevent a system overload or a down phenomenon due to throughput congestion, and a message transmission method using the same.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not intended to limit the invention to the precise forms disclosed. Other objects, which will be apparent to those skilled in the art, It will be possible.

According to another aspect of the present invention, there is provided a mobile terminal including: a buffer unit for receiving and temporarily storing a scheduled outgoing message in which a pop-up time is set; And a message controller for waiting for the pop-up time to pop up the scheduled outgoing message according to the pop-up time.

According to another aspect of the present invention, there is provided a message service center, comprising: a message service center receiving a reservation dispatch message having a pop-up time from a calling terminal; a message service center generating a password code corresponding to a pop- Encoding the reserved dispatch message using the generated encryption code and sending the encoded reserved dispatch message to the called terminal before the pop-up time.

Meanwhile, a message transmission system according to the present invention includes: a message service center receiving a reservation dispatch message with a pop-up time from a calling terminal; a message service center generating a password code corresponding to a pop-up time; Encoding the reservation dispatch message using the generated encryption code and sending the encoded reservation dispatch message to the receiver terminal before the pop-up time.

According to another aspect of the present invention, there is provided a method of transmitting a message, the method comprising: generating a scheduled outgoing message having a pop-up time; receiving a scheduled outgoing message from a message service center and temporarily storing the message; And outputting the scheduled dispatch message to the pop-up function in accordance with the pop-up time.

The message transmission method using the mobile terminal and the message service center according to the present invention as described above can significantly increase the transmission success rate of the message and effectively implement the reservation transmission function.

Also, the mobile terminal, the message service center, and the message transmission method using the mobile terminal and the message service center according to the present invention can appropriately distribute the traffic of the message, thereby preventing the system overload or the down phenomenon due to the throughput congestion.

In addition, a message transmission method using a mobile terminal and a message service center according to the present invention can protect a message that has been reserved before a caller reaches a designated time using a cryptographic key received from a mobile communication network.

Hereinafter, a message transmission system according to a preferred embodiment of the present invention, a mobile terminal and a message service center included in the system will be described in detail with reference to FIGS. 1 to 3 attached hereto.

1 is a schematic overall configuration diagram of a message transmission system according to an embodiment of the present invention.

Referring to FIG. 1, a message transmission system according to an exemplary embodiment of the present invention includes a calling terminal 110, a called terminal 120, a calling side and a RAN (Radio Access Network) 150 A mobile communication network including a core network 200 and a message service center 210 interworking with a core network 200.

The originating terminal 110 is a device for accessing a core network 200 of a mobile communication provider through an access network 150 on a calling side to originate a call including a message. A message is various types of data that can be exchanged between a calling party and a calling party, including characters, multimedia data such as graphics, photographs, music, video clips, and the like. These messages include SMS messages and MMS messages. A mobile terminal such as a cellular phone, a PDA (Personal Digital Assistant), or any type of terminal capable of providing a message service by accessing a mobile communication network such as a PC (Personal Computer) or a notebook computer can be used as a calling terminal 110 have. In FIG. 1, a case where a mobile terminal capable of a call service as well as a message service is used as the calling terminal 110 is illustrated.

When the sender creates and transmits a message through the originating terminal 110, the message is transmitted to the terminating terminal 120 having the called number through the message service center 210 of the mobile communication network.

The calling party operates the calling terminal 110 to create a called number of the calling terminal 120 that is the other party of the message and the message, sets a pop-up time for displaying the message to the called party, And generates a scheduled outgoing message. The originating terminal 110 provides the reserved message to the message service center 210 of the core network 200 via the access network 150 on the calling side.

At this time, when the scheduled dispatch message is not immediately confirmed by the called party along with the pop-up time, the number and interval of pop-ups for performing the pop-up retry, whether or not the message is encrypted, and the like may be set together.

The terminating terminal 120 is connected to the core network 200 of the mobile communication provider through the terminating access network 160 as a terminal corresponding to the called number of the reservation forwarding message, And receives a message service by receiving a call.

The access networks 150 and 160 are located at the calling and destination sides and are connected to the core network 200 by the originating terminal 110 and the terminating terminal 120. The access networks 150 and 160 include a Node- Radio Network Controller) for wireless connection.

The core network 200 is a service terminal that performs transmission and exchange of traffic between a calling party and a called party and interworking with an external network. The core network 200 includes a calling terminal and a called party access network 150, 110 and the terminating terminal 120, as well as sending and receiving of messages.

The message service center 210 receives the reservation dispatch message generated from the calling terminal 110 and sends a reservation dispatch message to the call receiver 120 before the popup time. To this end, upon receiving the message, the message service center 210 first confirms whether the message is a scheduled outgoing message with a pop-up time.

Here, the message including the reservation dispatch message may be various types of data such as an SMS / MMS message. The message service center 210 is a device according to the type of a message used when providing a message service, This is equivalent to a server.

When there is a need to enhance the security, the message service center 210 generates a cryptographic key required for decoding a scheduled outgoing message, and sends the generated cryptographic key to the called terminal 120 after encoding the scheduled outgoing message.

The mobile communication network including the access networks 150 and 160 and the core network 200 may be implemented in various forms such as a CDMA network, a WCDMA network, a HSDPA network, a WiBro network, and a 4G network. The apparatuses included in the access networks 150 and 160 and the core network 200 may be classified into various types of mobile communication networks such as a type of a mobile communication network, a call path (a circuit call path or a packet call path), a calling terminal 110 and a calling terminal 120 And the like.

For example, in the case of a 2G mobile communication service implemented by a CDMA network, the core network 200 includes a mobile switching center (MSC), a home location register (HLR), and a visitor location register (VLR). In the case of a 3G mobile communication service implemented with a WCDMA network, the core network 200 includes a serving GPRS support node (SGSN), a gateway GPRS support node (GGSN), and a home subscriber server (HSS).

In this configuration, the terminating terminal 120 accesses the message service center 210 via the MSC or SGSN of the called party and receives a message service from the message service center 210. [

At the called party, the MSC or SGSN receives the reserved call message of the circuit call type or packet call type pre-sent before the pop-up time arrives from the message service center 210 and sends it to the RNC and / To the destination terminal 120 via the Node-B.

The receiving terminal 120 receives and temporarily stores the pre-dispatch message previously sent from the message service center 210, pops up the message according to the pop-up time of the message, and allows the called party to check the scheduled dispatch message on time do. That is, the call receiving terminal 120 counts the pop-up time of the pre-dispatch message that arrived in advance before the pop-up time, pops up the pop-up message and displays it to the called party.

In order to enhance the security, when the reservation dispatch message is encoded in the message service center 210, the receiver terminal 120 receives the encryption key necessary for decoding before popping up the reservation dispatch message, and performs a decoding operation of the reservation dispatch message .

A message service process provided in a system having the configuration as shown in FIG. 1 will be described below as an example.

First, the caller uses the calling terminal 110 to generate a called party number and a scheduled outgoing message to be sent to the called party. Then, the pop-up time, the number of pop-ups, the interval and the encryption of the reservation dispatch message are set and transmitted together with the called number to the message service center 210 of the mobile communication network.

The message service center 210 generates a password code corresponding to the pop-up time, and encodes the reservation dispatch message using the generated password code. At this time, the HLR of the mobile communication network inquires the location of the destination terminal 120 corresponding to the called number.

Thereafter, the message service center 210 forwards the encrypted reservation forwarding message to the terminating terminal 120, and performs a transmission retry a plurality of times in case of transmission failure. To improve the transmission success rate, the transmission retry interval gradually decreases as the pop-up time approaches. When the message is successfully transmitted, the destination terminal 120 stores the received scheduled outgoing message.

Meanwhile, the message service center 210 generates a cryptographic key necessary for decoding the reserved outgoing message, and transmits the cryptographic key to the called terminal 120 in the system parameter of the called-side Node-B located in the access network 160.

Upon receiving the pop-up time, the receiving terminal 120 releases the decryption of the reserved sending message with the decoding encryption key in the system parameter received from the receiving node-B and displays the decoded reserved sending message to the called party. If the called party does not acknowledge the message, the message is re-popped a predetermined number of times for each predetermined pop-up interval in the scheduled dispatch message, and the message is displayed again.

In order to prevent a message service failure due to a congestion of outgoing traffic or a bad radio environment, the originating terminal 110 sets a pop-up time (a time at which a message is displayed to the called party) in advance and sends a message. Then, the message service center 210 encrypts the message with an encryption code (for example, a password code associated with a pop-up time), and transmits the encrypted message to the receiving terminal 120 at a predetermined interval (for example, two hours before) In case of transmission failure, the transmission success rate is increased through several transmission retries before the popup time.

In addition, when the message reaches the pop-up time, the terminating terminal 120 decrypts it with the encryption key (decryption code) included in the system parameter received from the destination Node-B, To be seen and delivered. If the message is protected with a cipher code prior to the specified pop-up time, the message sent in the scheduled outgoing message may not be exposed in advance to the called party.

FIG. 2 is an internal configuration diagram of the mobile terminal shown in FIG. 1, illustrating the internal configuration of a mobile terminal used as the receiving terminal 120.

2, the terminating terminal 120 includes a buffer unit 121, a message checking unit 122, a message control unit 123, an input unit 124, a display unit 125, and a message decoding unit 126.

The buffer unit 121 receives and temporarily stores a scheduled outgoing message for which the pop-up time is set via the mobile communication network from the originating terminal 110. [

In this case, the reserved dispatch message is a message in which the hidden attribute is set until the pop-up time, or the encryption is released when the pop-up time is reached while the encrypted message remains until the pop-up time. Such a reservation dispatch message is transmitted to the receiver terminal 120 ahead of the predetermined time before the pop-up time. In addition to the pop-up time of the scheduled dispatch message, the number of pop-ups and the time interval may be set.

The message checking unit 122 counts the pop-up time of the reserved dispatch message stored in the buffer unit 121 and confirms whether a pop-up time of the message arrives.

The message control unit 123 interlocks with the message checking unit 122 and waits until the pop-up time of the reservation dispatch message is reached, and pops up the reservation dispatch message according to the pop-up time.

When the called party confirms the pop-up through the display unit 125 and presses an OK button to view the message, the message control unit 123 detects the pop-up and displays a scheduled dispatch message on the display unit 125.

If the called party does not confirm the pop-up of the pop-up scheduled dispatch message by pressing the confirm button, the message control unit 123 periodically pops up the scheduled dispatch message until pop-up confirmation by the called party is made.

If the number of popups and the time interval of the scheduled outgoing message are set, if the called party does not confirm the scheduled outgoing message popped up, the message control unit 123 controls the number of times of the popup of the message and the time interval The message pop-up is periodically repeated.

The input unit 124 generates an input code using input data input by the called party such as an OK button. The input unit 124 includes a keypad including a numeric key and an OK button, a touch pen, a mouse, ).

The display unit 125 displays the usage status of the battery, the reception strength of the radio wave, the date and time, and the operation status of the terminal in the standby state of the receiver terminal 120. [ When a message service is provided, a message is received from the message service center 210 under the control of the message control unit 123 and displayed visually.

The message decoding unit 126 receives a cipher key necessary for decoding from the mobile communication network when the encoded pre-dispatch message is received, and decodes the pre-dispatch message using the cipher key when the pop-up time comes.

If the encryption of the message is unnecessary and the encryption or non-encryption of the message is set to 'OFF', the encoding operation is not performed, so that the corresponding decoding operation can be omitted.

3 is an internal configuration diagram of the message service center shown in FIG.

3, the message service center 210 includes a control unit 211, a message storage unit 212, a message reservation confirmation unit 213, a message reservation transmission unit 214, an encoding unit 215, (216).

The control unit 211 manages all components such as a message storage unit 212, a message reservation confirmation unit 213, a message reservation transmission unit 214, an encoding unit 215 and a password generation unit 216, And controls the overall operation of the center 210.

The message storage unit 212 receives and stores a scheduled outgoing message having a pop-up time set by the originating terminal 110.

The message reservation confirmation unit 213 confirms the popup time of the reservation dispatch message stored in the message storage unit 212 and informs the message reservation transmission unit 214 of the confirmation result.

The message reservation transmitting unit 214 sends the reservation dispatch message to the call receiving terminal 120 in advance of a predetermined time before the pop-up time (for example, two hours earlier than the pop-up time) before the pop-up time arrives.

The encoding unit 215 performs encoding on the reserved outgoing message when security enhancement is requested.

The encryption unit 216 generates a cryptographic key required to decode the scheduled outgoing message encoded through the encoding unit 215 and sends the generated cryptographic key to the called terminal 120.

Here, the encoding unit 215 may encode the reserved dispatch message using the pop-up time or information about the called terminal 120. The encryption generating unit 216 generates a decryption cryptographic key using the pop-up time or the information on the terminating terminal 120 according to the encoding scheme, and transmits the generated decryption cryptographic key to the terminating terminal 120.

When a scheduled outgoing message is encoded dependent (depending on the pop-up time), the password used for encoding and decoding is determined by the pop-up time of the scheduled outgoing message. Therefore, all scheduled outgoing messages sent to a plurality of called terminals 120 at the same time are encoded with the same cipher. In this case, the decryption cipher key determined by the pop-up time is included in the system parameter of the destination Node-B and is simultaneously transmitted to the plurality of destination terminals 120 via the same overhead channel as the paging channel.

On the other hand, if security is required in particular, the encoding unit 215 codes the reserved outgoing message with a password dependent on the called party using a separate encryption applied to only one recipient. The encryption key generation unit 216 also generates a decryption encryption key that is dependent on the called party according to the encoding scheme. In this case, the decryption encryption key is transmitted only to the called terminal 120.

1 to 3, if a caller is scheduled to send an important message or if a message is expected to be congested at a particular time, the message may be encrypted in advance and transmitted to the terminating terminal 120 so that the caller It is possible to release the encryption at a desired time so that the message is displayed to the called party.

If the message delivery is unsuccessful, the message service center 210 increases the transmission success rate by performing a plurality of transmission retries before the time desired by the caller, i.e., the popup time, so that the message is delivered to the called party at a desired time .

According to such a system, when a large amount of messages must be transmitted at a predetermined time (for example, year-end, holiday, etc.), a large amount of messages are dispersed and transmitted in advance to effectively overload the mobile communication network and thereby cause service failures .

Hereinafter, a message transmission method according to a preferred embodiment of the present invention will be described in detail with reference to FIG.

4 is a flowchart of a message transmission method according to an embodiment of the present invention.

First, in step S110, the originating terminal 110 generates a reservation dispatch message and transmits the reservation dispatch message to the message service center 210 of the mobile communication network.

The scheduled dispatch message may further include information about the pop-up time, the number and interval of pop-ups, and whether or not it is encrypted. Here, the pop-up time refers to the time at which a message is displayed to the called party, and the number of pop-ups and the interval indicate the number of times and the time interval to be re-popped up when the called party does not press the confirmation button when a message is displayed to the called party. Whether encryption is to set a function of coding a message into a password code so that the called party can not arbitrarily hack and view the message before the designated pop-up time.

Next, in steps S120 to S160, the message service center 210 receives the reservation dispatch message transmitted from the calling terminal 110 and sends it to the receiving terminal 120 in advance (before the pop-up time).

This process will be described in more detail as follows.

In steps S120 and S130, the message service center 210 generates an encryption code (e.g., a password code associated with the pop-up time) and performs an encoding operation on the reserved message using the generated encryption code.

The message service center 210 may store the cipher code database to be used until a certain period of the future, and then apply the cipher code database to the encoding process, or may calculate a cipher code necessary for encoding using the function. If the encryption is set to 'OFF', steps S120 and S130 are skipped and the encryption operation is not performed.

In step S140, the message service center 210 attempts to transmit the reservation dispatch message to the caller terminal 120 several hours before the pop-up time (for example, two hours before the pop-up time).

In step S150, the message service center 210 confirms whether or not the scheduled outgoing message is successfully transmitted.

When the message service center 210 delivers a message to the terminating terminal 120 through the MSC or SGSN of the called party, the terminating terminal 120 receiving the message uploads an 'ACK' signal, and the MSC or SGSN transmits the ' To the center 210, the message service center 210 can know whether or not a message has been delivered to the receiving terminal 120. The 'ACK' signal may be transmitted to the path of the receiving terminal 120, the called Node-B and the RNC MSC / SGSN message service center 210.

If the 'ACK' signal is not received or there is a problem in the delivery process, the MSC / SGSN receives an error code related to the transmission failure from the RNC and transmits information on the transmission failure to the message service center 210 .

In this manner, when the receiver terminal 120 receives the reservation dispatch message and then transmits the 'ACK' signal in response to the reservation dispatch message, the message service center 210 receives this signal and recognizes that the message has been successfully transmitted And proceeds to step S180.

If the 'ACK' signal is not transmitted from the terminating terminal 120 after a predetermined time due to the transmission failure, the message service center 210 recognizes the transmission failure and proceeds to step 160 so as to retransmit the scheduled outgoing message .

In step S160, if the pre-transmission fails due to the transmission failure of the scheduled outgoing message, the message service center 210 repeatedly retries the transmission of the scheduled outgoing message until the message transmission is successfully performed or until the pop-up time is reached .

At this time, if the transmission retry interval is gradually shortened as the transmission retry is repeated, the transmission success rate can be improved.

For example, if the initial retry interval is one hour, the retry interval is decreased by 10 minutes as the message transmission retry is repeated due to the failure of the receiver terminal 120 to receive. The transmission retry interval is 1 hour (first) → 50 minutes → 40 minutes → ... → 10 minutes (final). The initial retry interval and the last retry interval are configurable at the message service center 210.

Next, in steps S170 and S210, the terminating terminal 120 receives and temporarily stores the scheduled outgoing message transmitted from the message service center 210, pops up according to a preset pop-up time, and displays the pop-up message to the called party.

This process will be described in more detail as follows.

First, in step S170, the receiving terminal 120 receives the reservation dispatch message transmitted from the message service center 210 through step S140 or step S160, and temporarily stores the reservation dispatch message in the buffer unit 121. [

When a message is received by the receiving terminal 120, the receiving terminal 120 displays a message indicating that the corresponding message is a scheduled outgoing message having a pop-up time at the time of paging, and stores the message in the buffer 121 do.

In addition, when the reservation dispatch message is successfully received to the receiver terminal 120, when the receiver terminal 120 stores the reservation dispatch message in the buffer unit 121, the buffer unit 121 may wait until the pop- .

After the reservation dispatch message is successfully transmitted, the message service center 210 proceeds to step S180 and transmits the cryptographic key (decryption code) necessary for decoding the reservation dispatch message to the receiver terminal 120, Receives the transmitted encryption key. At this time, the MSC or the SGSN includes an encryption key for decoding a scheduled outgoing message decoded with a cipher code corresponding to the pop-up time, and transmits the cipher key to all the called terminals 120 in the system parameter.

In step S190, the receiving terminal 120 checks whether or not the pop-up time of the reservation dispatch message arrives, and when the pop-up time is reached, the flow proceeds to step S200.

In step S200 and step S210, the receiving terminal 120 decodes the reserved sending message using the encryption key received from the message service center 210, and pops up the message so that the called party can view it. That is, when the pop-up time of the reservation dispatch message is reached, the receiver terminal 120 decodes the reservation dispatch message already arrived with the received cryptographic key and displays it to the receiver.

In a case where encryption for the scheduled outgoing message is not performed, steps S180 and S200 may be omitted. In the case of a private message that is not secret, it is not necessary to encrypt the message. Therefore, when the pop-up time is reached without a decoding process, the reservation dispatch message is immediately displayed to the called party.

If the called party does not see the first popped up message, i.e., if the OK button is not pressed, the message pops up again at a given time interval and is shown to the called party, depending on the number of popups and the interval set in the message. In this way, the actual transmission success rate of an important message can be increased. An additional function for enhancing the service efficiency may be applied even when the pop-up is repeated, for example, by alerting a caller to notify the arrival of a message, thereby attracting the attention of the called party.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, You will understand.

Therefore, it should be understood that the above-described embodiments are provided so that those skilled in the art can fully understand the scope of the present invention. Therefore, it should be understood that the embodiments are to be considered in all respects as illustrative and not restrictive, The invention is only defined by the scope of the claims.

The present invention is applicable to a mobile communication technology providing a message service.

The mobile terminal and the message service center according to the present invention can increase the transmission success rate of the message and prevent the message traffic from being caught in a specific time zone, thereby preventing the overload of the traffic due to the traffic congestion.

1 is a schematic overall configuration diagram of a message transmission system according to an embodiment of the present invention;

FIG. 2 is an internal configuration view of the mobile terminal shown in FIG. 1. FIG.

DESCRIPTION OF THE REFERENCE SYMBOLS

110: originating terminal 120: incoming terminal

150, 160: access network 200: core network

210: Message Service Center

Claims

A pop-up time, and an encryption or non-encryption state of a scheduled outgoing message; And

And if the cipher key is decoded, receives the cipher key necessary for decoding and decodes the reserved dispatch message, and then transmits the decoded reservation message A message control unit for populating a dispatch message;

.

The method of claim 1,

Wherein the mobile terminal is preceded by a predetermined time before the pop-up time is reached.

The apparatus of claim 1,

And if the pop-up scheduled dispatch message is not confirmed, pops up the scheduled dispatch message periodically until confirmation is made.

The method of claim 1,

The number of pop-ups and the interval are further set.

5. The method of claim 4,

And if the pop-up scheduled dispatch message is not confirmed, pop-up of the scheduled dispatch message is periodically repeated according to the number of pop-ups and the interval until pop-up confirmation is made.

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A message storage unit for receiving and storing a scheduled outgoing message having at least one of a pop-up time and an encryption status from a calling terminal;

An encoding unit generating an encryption code when the reserved outgoing message is encrypted and encoding the reserved outgoing message using the generated encryption code;

A message reservation transmitter for pre-sending the encoded pre-dispatch message to the receiver terminal before the pop-up time;

A message service center.

8. The method of claim 7,

Generating a cryptographic key necessary for decoding the scheduled outgoing message encoded through the encoding unit and sending the generated cryptographic key to the called terminal,

Further comprising a message service center.

8. The apparatus of claim 7,

And generates the password code using the pop-up time or the information about the called terminal.

The information processing apparatus according to claim 8,

And generates the cryptographic key necessary for decoding the scheduled outgoing message using the pop-up time or the information about the called terminal.

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Receiving a reservation dispatch message from a calling terminal, the message dispatch center having a pop-up time and an encryption status;

If encryption is set up, said message service center generating an encryption code for said scheduled outgoing message;

The message service center encoding the reserved dispatch message using the generated secret code; And

The message service center sending the encoded pre-dispatch message to the called terminal before the pop-up time;

/ RTI >

14. The method of claim 13,

Wherein the message service center repeatedly retries transmission of the scheduled outgoing message until the message transmission is successful when the message service center fails to transmit the scheduled outgoing message.

15. The method of claim 14,

Wherein the message service center gradually decreases the transmission retry interval as the transmission retry of the reservation dispatch message is repeated.

16. The method of claim 15,

Wherein the message service center sets an initial retry interval and a final retry interval of the scheduled outgoing message.

Receiving and temporarily storing a scheduled outgoing message having at least one of a pop-up time and an encryption status from a message service center; And

Receiving an encryption key necessary for decoding the reserved outgoing message if encryption is set; And

Decoding the reserved outgoing message using the encryption key when the mobile terminal reaches the pop-up time, and outputting the decoded message to a pop-up function;

/ RTI >

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A computer-readable recording medium recording a program for executing the message transmission method according to any one of claims 13 to 17.