KR100457877B1 - Method and System for Transmitting of Short Messages in Moblie Communication System - Google Patents

Abstract

The present invention relates to a method and a system for transmitting a short message using a communication network.

An originating terminal and a called terminal for transmitting or receiving a short message, a mobile communication exchange station for transmitting and receiving the short message, and a short message service center (SMSC) for receiving, storing and transmitting the short message from the mobile communication exchange station are connected through a communication network. A method for transmitting a short message during an incoming terminal call in a mobile communication system, wherein a source mobile communication switching center receives the short message from the calling terminal and transmits the short message to the short message service center, and sends the short message from the short message service center. The destination mobile communication switching center receiving the message determines whether the called terminal is in a busy state, but if the called terminal is busy, temporarily stores the short message without transmitting the short message, and immediately after the call of the called terminal is terminated, the short message is received. Incoming terminal Of the call terminating terminal in the transmission mobile communication system provides a method for transmitting a short message.

According to the present invention, the user of the called terminal can receive and confirm the short message transmitted during the call immediately after the end of the call.

Description

Method and system for transmitting short message during incoming terminal call in mobile communication system {Method and System for Transmitting of Short Messages in Moblie Communication System}

The present invention relates to a method for transmitting a short message when a called terminal is busy. More specifically, when the called terminal to receive the sent short message is busy, the mobile communication exchange does not immediately modify the called terminal information of the Visitor Location Register (VLR) to send the short message. The present invention relates to a method and system for transmitting a short message to a called terminal by re-editing called terminal information immediately after a call is terminated.

Since the Internet communication service, which is symbolized by the World Wide Web, has been in the spotlight, communication service has already made a big difference in human life in all aspects of society, economy and politics. It is hard to imagine life without the Internet, and the Internet is a part of life. Therefore, in recent years, the use of various high-speed communication networks, such as in order to use a variety of communication services in a better environment has increased significantly.

However, communication services such as the Internet using a computer have advantages in that the transmission speed is high and data input is convenient. However, communication services such as the Internet can no longer be used once the computer is out of the environment. It has the disadvantage of using the service.

Therefore, in recent years, many telecommunication companies have spurred the development of new technology called wireless Internet to provide communication services such as the Internet beyond the space. Wireless Internet refers to an environment and technology in which a user can use an Internet service through a wireless network while using a mobile communication terminal. The development of mobile communication technology and the rapid increase in the penetration rate of mobile communication terminal further promoted the development of this wireless Internet environment.

Thanks to the development of the wireless Internet environment, mobile operators and other telecommunication operators are further promoting the use of the wireless Internet by providing various and useful services to the users of the wireless Internet. Such wireless Internet services include text messages, e-mails, cards, letters, games, geography / life information, learning, cartoons, and the like.

In particular, a short message service (SMS) is a text message of a limited length, regardless of whether a mobile subscriber is in a call, from a computer connected to the Internet to a mobile terminal or a mobile terminal. It is a service that is delivered to the liver. SMS, which can send texts of about 80 bytes (80 Korean characters) on the LCD screen of mobile communication terminals, has exploded in utilization rate due to the extended use range from personal use to corporate use. In other words, the recent SMS is not just a message between individuals, but also widely used for various purposes such as group transmission, reservation transmission, email arrival notification, personal information management, stock information notification, product information notification, and financial information notification. It is used.

Meanwhile, when the short message is transmitted to the mobile communication terminal, the user of the called terminal may recognize that the short message has been received through the transmission or vibration of an alarm sound informing the reception of the short message according to the setting mode of the called terminal. . In this case, the user of the called terminal can immediately check the content of the short message through the liquid crystal screen of the called terminal.

However, if a short message is received while a user of the called terminal is talking to the called terminal, most users do not check the content of the short message transmitted during the call because it is inconvenient to immediately check the contents of the short message transmitted. There is a tendency. In addition, most of the mobile communication terminals currently on the market are set at the time of manufacture of the mobile communication terminal to continuously emit an alarm sound or vibrate operation at a predetermined interval (for example, 1 to 2 minutes) upon receiving a short message. Therefore, the user has a problem in that he / she suffers a considerable difficulty in listening to the contents of the conversation of the counterpart talker during the call.

In addition, when a user of the called terminal receives a short message during a call, when the notification mode of SMS arrival of the called terminal is set to 'not informed', for example, in order to avoid an inconvenience of an alarm sound or vibration operation that is transmitted at regular intervals. It is very difficult to recognize whether or not a text message has been received. In other words, the user should check the LCD screen of the receiver terminal frequently to check whether the text message has been received. Therefore, it is very difficult to check whether the text message is received even when not in a call. There are disadvantages.

In order to solve the above problems, the present invention, if it is determined that the destination terminal of the sent short message is a call, the mobile communication switching center does not immediately modify the destination terminal information of the visitor location register to send the short message. An object of the present invention is to provide a method and system for retransmitting called terminal information immediately after a call is terminated and transmitting a short message to the called terminal.

1 is a block diagram schematically illustrating a mobile communication system for transmitting a short message according to an embodiment of the present invention;

2 is a flowchart illustrating a process of sending a short message according to an embodiment of the present invention;

3 is a block diagram schematically illustrating a mobile communication system for receiving a short message according to an embodiment of the present invention;

4 is a flowchart illustrating an incoming process of a short message according to an embodiment of the present invention.

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

110: calling terminal 120, 340: wireless base station

130, 330: mobile communication switching center 132, 332: visitor location register

140, 310: Short Message Service Center 320: Home Location Register

350: called terminal

To this end, the present invention is a communication network for a short message service center for receiving and storing and transmitting a short message from a calling terminal and a called terminal for transmitting or receiving a short message, a mobile communication switching station for transmitting and receiving the short message, and the mobile communication switching station. In the method for transmitting a short message during an incoming terminal call in a mobile communication system connected through the communication, the calling terminal transmits the short message to the short message service center through a source mobile communication switching center. Transmitting the short message to a destination mobile communication switching center in which the called terminal is located, wherein the destination mobile communication switching center checks whether the called terminal is busy, and temporarily stores the short message when the call is in progress. Incoming terminal Continuously checking whether or not the call is terminated, the destination mobile communication switching center transmits a short message to the destination terminal, checking whether the short message is normally received, and the destination mobile communication switching center is receiving the short message. If it is determined that the message has been transmitted normally provides a method for transmitting a short message during a call to the terminal of the mobile communication system comprising the step of notifying the fact to the short message service center.

For another object of the present invention, the present invention provides a system for transmitting a short message during a call of a called terminal in a mobile communication system including a calling terminal which inputs and sends a short message and a called terminal which receives and confirms the short message sent. And a base station for transmitting the input short message through a communication network, a base station transmitter for receiving and transmitting the short message transmitted from the originating terminal, and a base station controller, the short base received from the wireless base station. A mobile communication exchange station for encoding and transmitting a message into SMDPP data, checking whether the called terminal is busy and temporarily storing the SMDPP data without a call when the call is in progress, and transmitting the SMDPP data when the call is terminated. Transfer from exchange A short message service center for receiving, storing and transmitting the SMDPP data to the called terminal; and the called terminal for receiving the SMDPP data transmitted from the short message service center through the mobile communication switching center and the wireless base station. A system for transmitting a short message during an incoming terminal call in a mobile communication system is provided.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

1 is a block diagram schematically illustrating a mobile communication system for transmitting a short message according to an embodiment of the present invention.

A mobile communication system for sending a short message according to a preferred embodiment of the present invention includes a calling terminal 110, a base station (BS) 120, a mobile switching center (MSC) 130, and Short Message Service Center (SMSC) (hereinafter referred to as 'SMSC') (140).

The originating terminal 110 is a mobile communication terminal that inputs a short message to be transmitted and then performs a call attempt to the wireless base station 120 to transmit the input short message. Calling terminal 110 is a model that can use the SMS, the terminal subscribed to the SMS to use the SMS. In the exemplary embodiment of the present invention, a mobile communication terminal is used as an apparatus for inputting and transmitting a short message. However, a web browser may be installed to include a computer having an Internet connection for inputting and transmitting a short message on the web. .

The wireless base station 120 receives the call attempt requested by the calling terminal 100 and transmits it to the mobile communication switching station 130 through the wired network, and transmits the text message transmitted from the mobile communication switching station 130 to the called terminal 110. A base station having a wireless transceiver for transmitting. In general, the wireless base station 120 includes a base transceiver station (BTS) for transmitting and receiving radio signals, a base station controller (BSC) for processing a call attempt, a repeater (Cell Enhancer), and the like.

The mobile communication switching station 130 has a control function and a function of interworking with a public switched telephone network (PSTN) for enabling a plurality of wireless base stations 120 to operate efficiently, and includes a plurality of exchanges. In addition, the mobile switching center 130 usually has a visitor location register (VLR) 132 therein to control the visitor location register 132. Of course, the visitor location register 132 may be installed outside of the mobile communication switching center 130.

Here, the visitor location register 132 stores the subscriber information of the home subscriber and the visiting subscriber in the area controlled by the corresponding mobile communication exchange 130. That is, the visitor location register 132 temporarily stores a copy of the original subscriber's original database when a subscriber registered with a specific mobile communication exchange 130 moves to an area managed by another mobile communication switching station 130.

In more detail, the visitor location register 132 in the region to which the subscriber has moved requests the home location register (HLR: Home Location Register) of the mobile communication switching station 130 where the subscriber is initially registered. It receives and stores the visitor's information. Here, the subscriber's information refers to a mobile identification number (MIN), an electronic serial number (ESN), and registered service information of the subscriber's mobile communication terminal. Therefore, when the visited subscriber performs the call view in the area where the visited subscriber moves, the visited mobile communication office 130 processes the requested view using the information of the visited subscriber temporarily stored in the visitor location register 132.

The SMSC 140 receives the short message sent from the calling terminal 110 through the mobile communication switching station 130 and transmits the short message to the mobile communication switching station with the called terminal using the MIN of the called terminal.

2 is a flowchart illustrating a process of sending a short message according to an embodiment of the present invention.

The calling terminal 110 transmits the short message input by the user to the mobile communication switching center 130 through the wireless base station 120 (S200). The short message transmitted from the originating terminal 110 is stored and transmitted in a bearer data area of the data layer of the mobile communication system. Here, the bearer data refers to data used for a bearer service that provides voice, data, and the like provided in real time from the first layer, the second layer, and the third layer among the seven layers of the OSI (Open System Interconnection). A service in which an information processing function is added to an information transmission function of a bearer service is called a tele service.

The mobile communication switching center 130 receives and stores the short message transmitted from the calling terminal 110 (S202).

The mobile communication switching center 130 encodes the received short message in an SMSPP (SMS Delivery Point To Point) format (S204).

The mobile switching center 130 transmits the encoded SMDPP data and the MIN of the called terminal to the SMSC 140 (S206).

Then, the mobile communication switching station 130 sets a predetermined timer (Timer) set to operate a predetermined time to check whether or not a normal reception response signal is transmitted from the SMSC 140 (S208).

The mobile communication switching center 130 receives a SMDPP (Ack) message indicating that reception of SMDPP data sent from the SMSC 140 has been normally performed before the operation of the predetermined timer set in step S208 is completed (S210).

The mobile switching center 130 receiving the SMDPP (Ack) message from the SMSC 140 transmits the SMDPP (Ack) message to the calling terminal 110 through the wireless base station 120, and the calling terminal 110 and the wireless base station. The operation for the short message sending service is terminated by releasing the system resource set at 120 (S212).

3 is a block diagram schematically illustrating a mobile communication system for receiving a short message according to an embodiment of the present invention.

The mobile communication system for receiving a short message according to an embodiment of the present invention is almost similar to the mobile communication system for sending a short message described with reference to FIG. 1. However, the SMSC 310 of the mobile communication system for receiving the short message may be linked with the home location register 320.

In more detail, when the terminating terminal 350 to receive the short message transmitted from the originating terminal 110 of FIG. 1 is not in an area under the jurisdiction of the mobile communication switching station 130 at the originating side, the SMSC 310 Determining the mobile communication switching station that the terminating terminal 350 is initially registered using the MIN of the terminating terminal 350 received with the short message. Here, the first registered mobile communication switching center means a mobile communication switching station in which a subscriber first registers subscriber information and information of the called terminal 350 in order to use a mobile communication service with the destination terminal 350.

The SMSC 310 requests the location information of the called terminal 350 to the home location register 320 of the mobile communication switching center found using the MIN of the called terminal 350. Accordingly, the home location register 320 provides the location information of the called terminal 350 to the SMSC 310, and the SMSC 310 uses the received location information to determine the location of the area where the called terminal 350 is currently located. Find out the mobile communication switching center (330).

Meanwhile, the called terminal 350 of FIG. 3 is a mobile communication terminal that receives the short message transmitted from the calling terminal 110 through the mobile communication switching center 330 and the wireless base station 340. The terminating terminal 3350 is also a model capable of using SMS, similar to the originating terminal 110, and is a terminal subscribed to the SMS. In addition, the user may set a notification mode of receiving the short message of the destination terminal 350 when receiving the short message, and the notification mode may be set to three kinds of 'alarm tone', 'vibration' and 'not notice'. have.

4 is a flowchart illustrating an incoming process of a short message according to an embodiment of the present invention.

SMSC 310 receiving the SMDPP data by the process described in FIG. 2 requests the location information of the called terminal 350 from the home location register 320 of the first mobile switching center by using the MIN of the called terminal 350. Acquire (S400).

The SMSC 310 having obtained the location information of the called terminal 350 transmits SMDPP data to the mobile communication switching center 330 of the region where the called terminal 350 is located (S402).

Receiving SMDPP data from the SMSC 310, the mobile communication switching center 330 checks the destination terminal 350 using the MIN, and checks whether the destination terminal 350 is currently busy (S404). Here, the mobile communication switching center 330 determines whether a call is received by the called terminal 350 by checking whether a communication channel is formed in the called terminal 350 through the wireless base station 340.

If it is determined in step S404 that the called terminal 350 is busy, the mobile communication switching center 330 sets the SMS_Pending flag in the information of the called terminal 350 of the visitor location register 332 which it manages to 'PENDING'. Set and temporarily store SMDPP data (S406).

The mobile communication switching center 330 determines whether the call of the called terminal 350 is terminated through the wireless base station 340 (S408). Here, the mobile communication switching center 330 determines whether or not the call is terminated by checking whether the terminating terminal 350 performs an implicit location registration indicating the end of the call.

In more detail, the terminating terminal 350 automatically performs location registration with the corresponding mobile communication switching center 330 when performing a call view, answering an incoming call, or ending a call. Such a location registration is called an implicit location registration, and in the case of an implicit location registration, the called terminal 350 transmits an 'Order Message' of a reverse call channel to the mobile communication switching center 330 through the wireless base station 340. Accordingly, the mobile communication switching center 330 determines whether the call of the called terminal 350 is terminated by checking whether an 'Order Message' is transmitted from the called terminal 350 to inform the end of the call.

In step S404, when the called terminal 350 is not in a busy state or when the call of the called terminal 350 ends in step S408, SMDPP data is transmitted to the called terminal 350 (S410).

The mobile communication switching center 330 determines whether the terminating terminal 350 normally receives the transmitted SMDPP data (S412). The receiving terminal 350 transmits the SMDPP (Ack) message to the SMSC 310 via the wireless base station 340 and the mobile communication switching center 330 when receiving the transmitted SMDPP data. At this time, the mobile communication switching center 330 analyzes the received SMDPP (Ack) message and checks whether the destination terminal 350 normally receives the SMDPP data.

In step S412, the mobile communication switching center 330 analyzes the received SMDPP (Ack) message and determines that the destination terminal 350 does not receive SMDPP data normally. The SMS_Pending flag is set to 'PENDING' among the information (S414).

The mobile communication switching center 330 continuously calls the called terminal 350 on the paging channel through the wireless base station 340, thereby checking whether the called terminal 350 responds to the calling channel (S416).

When the called terminal 350 responds through the call channel, the mobile communication switching center 330 retransmits the SMDPP data to the called terminal 350 (S418). The mobile telecommunication switching center 330 having retransmitted the SMDPP data to the called terminal 350 proceeds to step S412 and performs a process such as whether the called terminal 350 normally receives the SMDPP data.

On the other hand, if the terminating terminal 350 does not respond to the call channel for a certain period in step S416, the mobile communication switching center 330 deletes the SMDPP data, and notifies the SMSC 310 of the fact (S420).

When the mobile communication switching center 330 analyzes the SMDPP (Ack) message in step S412 by transmitting the first SMDPP data or retransmitting the first SMDPP data to the called terminal 350 and confirming that the called terminal 350 normally receives the SMDPP data. The mobile communication switching center 330 notifies the SMSC 310 of the fact (S422).

Upon receiving the normal processing result of the SMDPP data, the SMSC 310 sets the state of the corresponding SMDPP data to 'SENT' and deletes the SMDPP data after a certain period of time (S424).

The above description is merely illustrative of the present invention, and those skilled in the art to which the present invention pertains may various modifications without departing from the essential characteristics of the present invention. Accordingly, the embodiments disclosed herein are not intended to limit the present invention but to describe the present invention, and the spirit and scope of the present invention are not limited by these embodiments. It is intended that the scope of the invention be interpreted by the following claims, and that all descriptions within the scope equivalent thereto shall be construed as being included in the scope of the present invention.

According to the conventional method of transmitting a short message, the user of the called terminal suffered a lot of difficulties in the call due to an alarm sound or a vibration indicating the reception of the short message during the call. Since it does not transmit, the user of the called terminal can make a call without any inconvenience.

In addition, since the short message transmitted during the call is transmitted to the called terminal as soon as the user of the called terminal terminates the call, the user of the called terminal confirms the reception of the short message through an alarm sound or vibration operation that is sent out after the call ends. You can check the contents of the short message.

Claims (15)

A communication network is provided by a calling terminal and a called terminal for transmitting and receiving a short message, a mobile communication switching station for signaling and transmitting the short message, and a short message service center (SMSC) for receiving, storing and transmitting the short message from the mobile communication switching center. In the method of transmitting a short message during a call of the called terminal in the mobile communication system connected through (a) transmitting a short message generated by the originating terminal to SMS delivery point to point (SMDPPP) data by a mobile communication switching center and transmitting the short message to a short message service center; (b) the short message service center transmitting the short message to a destination mobile communication switching center in which the called terminal is located; (c) the called mobile communication switching center checking whether the called terminal is busy, temporarily storing the short message if busy, and continuously checking whether the call of the called terminal is terminated; (d) when confirming that the call of the called terminal is terminated, the destination mobile communication switching center transmits a short message to the called terminal and checks whether the short message is normally received; And (e) when the destination mobile communication switching center determines that the short message is normally transmitted, notifying the short message service center of the fact. Method of transmitting a short message during a terminal call in the mobile communication system comprising a. delete The method of claim 1, In the mobile communication system, the short message service center is configured to request and obtain location information of the called terminal from the first home location register of the called terminal between the steps (a) and (b). Of short messages during incoming terminal calls. The method of claim 3, wherein And the short message service center finds the initial home location register using a MIN (Mobile Identification Nunber) transmitted from the calling terminal. The method of claim 1, wherein in step (c) The destination mobile communication switching center sets the SMS_Pending flag in the destination terminal information registered in the visitor location register to 'PENDING' when the destination terminal is busy. Transmission method. The method of claim 1, wherein in step (c) The mobile communication exchange station checks whether or not the call is terminated by using a message received during an implicit location registration process, which is automatically performed when the called terminal terminates a call. A method of transmitting a short message during an incoming terminal call in. The method of claim 6, The message is a method of transmitting a short message during a call of a called terminal in a mobile communication system, wherein the called terminal transmits a message to the mobile communication switching center via a reverse base station through a wireless base station. The method according to claim 1 or 5, And when the call is terminated, the destination mobile communication switching center changes the SMS_Pending flag to 'NOT_PENDING'. The method of claim 1, wherein in step (d) The destination mobile communication switching center analyzes the SMDPP (Ack) message transmitted from the destination terminal to determine whether the destination terminal has normally received the short message. Transmission method. The method according to claim 1 or 5, If it is determined that the called terminal does not normally receive the short message, the called mobile communication switching center changes the SMS_Pending flag to 'PENDING' and checks whether the called terminal responds to a calling channel. A method of transmitting a short message during an incoming terminal call in the system. The method of claim 10, When the destination terminal responds to the call channel, the destination mobile communication switching center repeatedly retransmits the short message and confirms whether or not the short message is normally received. How to send a short message. The method according to claim 1 or 5, The destination mobile communication switching center changes the SMS_Pending flag to 'NOT_PENDING' when normal reception of the short message is confirmed; A system for transmitting a short message during an incoming terminal call in a mobile communication system, comprising: a calling terminal for inputting and sending a short message; and a called terminal for receiving and confirming the short message sent; The originating terminal for transmitting the input short message through a communication network; A wireless base station having a base station transmitter and a base station controller for receiving and transmitting the short message sent from the calling terminal; Transmit the short message received from the wireless base station by SMDPP data, and check whether the called terminal is in a call and temporarily store the SMDPP data without transmitting if the call is in progress, and transmit the SMDPP data when the call ends. A mobile telecommunication switching center; A short message service center for receiving, storing and transmitting the SMDPP data transmitted from the mobile communication switching center to the called terminal; And The called terminal receiving the SMDPP data transmitted from the short message service center through the mobile communication switching center and the wireless base station; System for transmitting a short message during an incoming terminal call in a mobile communication system comprising a. The method of claim 13, The originating terminal is a mobile communication terminal subscribed to a short message service or a system for transmitting a short message during a call of a terminating terminal in a mobile communication system, wherein the computer is capable of accessing the Internet on which a web browser is installed. delete