KR100520999B1 - Method and apparatus for distributing short message - Google Patents

Abstract

When the outgoing SMSC receives the short message received from the calling terminal, the present invention checks whether the phone number of the called terminal matches the pre-specified accommodating station number, and if so, the outgoing SMSC sends the short message to the called terminal. , If it does not match, the originating SMSC sends the short message to the short message distribution device, and the short message distribution device searches for the incoming SMSC corresponding to the terminal number of the called terminal by using the short message service center information stored in advance. The present invention relates to a short message distribution system and apparatus for sending a short message to a called terminal by an incoming SMSC, by which a short message management procedure of a short message service center (SMSC) can be simplified, and the short message transmission and reception is performed. NO. 7 Reduce the traffic load on the signaling network.

Description

Short message distribution system and apparatus {METHOD AND APPARATUS FOR DISTRIBUTING SHORT MESSAGE}

The present invention relates to a short message distribution system and apparatus, and to a short message distribution system and apparatus that can simplify the management procedure for routing messages between short message service centers (Short Message Service Center).

BACKGROUND OF THE INVENTION Due to the development of science and technology and the improvement of the economic level, the use of a mobile communication terminal for making a telephone service available on the go has become common. In addition, the mobile communication terminal is not limited to only means for a telephone call, but its use is diversified as a means for providing various additional services.

Currently, additional services that may be provided using a mobile communication terminal such as a personal communication service (PCS) or a personal digital assistant (PDA) may include a ringtone download service, a short message transmission service, an e-mail ( E-mail) Sending / receiving service, securities information providing service, traffic information providing service, etc. In addition, various services are gradually being developed.

In addition, a short message service (SMS: Short Message Service) may be used as the most common additional service. Hereinafter, a conventional short message transmission / reception service system and method will be described with reference to FIG. 1.

1 is a view showing a short message transmission and reception system according to the prior art.

Referring to FIG. 1, a short message transmitting / receiving system for performing a short message transmitting / receiving service in a mobile communication service system includes a base station transceiver subsystem (BTS) 115a and 115b and a base station controller (BSC) 120a. 120b), Mobile Switching Center (MSC) (125), Home Location Register (HLR) (130a, 130b), Outgoing Short Message Service Center-Short Message Service Center (135), Incoming SMSCs 140a, 140b, ..., 140n, and destination exchanger 145. Of course, although not shown in Fig. 1, it is outside the Home Network (i.e., connected to a Visiting Network). The apparatus may further include a visitor location register (VLR), which is a device that registers a location of a user terminal (ie, the calling terminal 110 and the called terminal 150). A base station (BTS) 115a, 115b. Baseband signal processing, communication protocol conversion, wireless By performing a call transmission and reception, encryption and decryption such as a network termination device it is connected directly to the subscriber terminal, and a baseband processing section consisting of a channel and a controller for processing the RF radio processing and CDMA signals.

The base station controller (BSC) 120a, 120b is located between the base station (BTS) 115a and the originating exchange 125 or between the base station (BTS) 115b and the destination exchange 145 to manage the base station. , A device for controlling allocation of a communication channel and a handoff decision. It has a packet-switched structure to efficiently process CDMA variable voice codes, and various signal processing is performed through No. 7 signal network. The source exchange 125 and the destination exchange 145 process basic and additional service. It is a device that performs the function, the incoming / outgoing call processing function of the subscriber, the location registration procedure and the handoff procedure processing function, and the interworking function with other networks of the existing network.

The home location register (HLR) 130a, 130b is a database that stores information (e.g., subscriber parameters, location information, etc.) about the subscriber of the mobile communication service. It provides a function of providing almost all the subscriber data such as the incoming call to the terminal 150 to the exchange 125 or 145 and the visitor location register (VLR), and holds necessary routing information for the incoming call to the user terminal 110 or 150. do. And all information and data transmission is no. 7 through the signal network.

The Short Message Service Center (SMSC) (that is, the originating SMSC and the incoming SMSC) is a device that provides a short message service (SMS) and performs a message input function, a message management function, and a message delivery function. The originating SMSC 135 sends a No. 1 call from the originating exchange 125. 7 A short message is received via the signaling network, and the incoming SMSCs 140a, 140b, ..., 140n receive a No. message from the originating SMSC 135. 7 A short message is received through a signal network. Hereinafter, a short message transmitting and receiving method according to the related art will be briefly described using the short message transmitting and receiving system shown in FIG. 1.

First, when a specific mobile communication service subscriber transmits a short message input by using the calling terminal 110, the short message is transmitted to a base station (BTS) 115a, a base station controller (BSC) 120a, and an originating party. It is sent to the originating SMSC 135 via the exchange 125. The outgoing SMSC 135 is a short message service center in charge of the telephone number station number of the outgoing terminal 110, and primarily sends a short message transmitted from the outgoing terminal 110. The receiving SMSC 135 detects the station number information of the telephone number of the called terminal 150 included in the short message received from the calling terminal 110. In addition, it is assumed that the incoming SMSC (here, 140a) corresponds to the station number information of the called terminal 150 phone number among the plurality of incoming SMSCs 140a, 140b, ..., 140n included in the same mobile communication service system. ), And the short message is sent to the selected incoming SMSC 140a. 7 Transmit through signaling network.

That is, the originating exchange 125 transmits the received short message to the originating SMSC 135 corresponding to the telephone number station number of the originating terminal 110 by using a short message delivery point to point (SMDPP) message. The outgoing SMSC 135 transmits the received short message to the incoming SMSC 140a by using a Short Message Delivery Point to Point (SMDPP) message. For example, assign a telephone number of 016-123-4567. It is assumed that a short message is transmitted from the received calling terminal 110 to the called terminal 150 assigned the telephone number 016-456-7890.

First, the short message transmitted from the originating terminal 110 is transmitted to the originating SMSC 135 via the base station (BTS) 115a, the base station controller (BSC) 120a, and the originating exchange 125 that are in charge of the station number 123. The originating SMSC 135 transmits the received SMSC 140a by using the already stored station number information and the incoming SMSC 140a, 140b, ..., 140n information corresponding to the station number information. That is, the incoming SMSC 140a in charge of the station number 456 is selected. Then, the short message is No. 7 The incoming SMSC 140a transmits the short message received from the originating SMSC 135 to the destination exchange 145, the base station controller (BSC) 120b, and the base station (BTS). Transmit to the called terminal 150 via the 115b.

As described above, in the short message transmitting / receiving method according to the related art, a specific short message service center (SMSC) must store information about another short message service center (SMSC) existing in the same system for short message routing. When the short message is received from the calling terminal 110, it is necessary to determine which short message service center to send the short message, so there is a complicated management procedure for transmitting the short message.

In addition, according to the conventional method for transmitting and receiving short messages, one short message service center (SMSC) must store information about another short message service center (SMSC) existing in the same system for short message routing. In addition, when a short message service center (SMSC) is added or attempted to expand a service in the future, the operation becomes complicated. In addition, in the short message transmission / reception method according to the related art, short message transmission and reception between short message service centers is no. 7 No. 7 There was also a problem that the traffic burden of the signaling network becomes excessive.

In addition, the above-described problem may be developed into a more complicated problem when introducing a number portability or a number pool, which is recently discussed. As the number of stations to be managed increases with the introduction of number portability or number pool, and the subscriber number (MDN / MSISDN) and the terminal identification number (MIN / IMSI) for call processing are separated. The exchange transmits the message to the short message service center based on the terminal identification number (MIN / IMSI), and the number of relays of the short message received between the short message service centers receiving the short message increases. For example, in the case of number portability, each mobile communication service system must manage a third party's carrier identification number in addition to its own carrier identification number, and also includes a number pool. ), The external carrier identification number (for example, 010) is the same, but in practice, since the carrier identification number is included in the station number increased to four digits, each mobile communication service system stores all the phone number information with increased digits. There is also a problem of registering and managing a short message service center (SMSC) that processes short messages based on subscriber directory number (MDN) when introducing number portability or number pool. ) Must accept not only subscribers of its own station number but also subscribers of other company's station number. Routing should be done in the company's network.

Therefore, the short message service center (SMSC) increases the burden of managing its own station number, managing third party station numbers, and receiving station numbers, and when the number portability query is switched from QOR (Query On Release) to ACQ (All Call Query). Will increase routing between short message service centers in our network. 7 The traffic load on the signaling network will increase.

Therefore, an object of the present invention is to process the distribution of the short message in the MC Router (Message Center Router) when the recipient phone number station number of the short message is not a station number in charge of a specific short message service center. It is to provide a short message distribution system and apparatus that can simplify the short message management procedure of the short message service center (SMSC).

Another object of the present invention is to provide a short message transmission and reception between the short message service center through the IP network. It is to provide a short message distribution system and apparatus that can reduce the traffic load of the 7 signaling network.

It is still another object of the present invention to provide a short message distribution system and a device which enables each short message service center to flexibly cope with system expansion and service expansion because there is no burden of its own station number management, third party station number management and acceptance station number management. will be.

In order to achieve the above objects, according to an aspect of the present invention, a method for transmitting a short message received from a calling terminal to a called terminal by a short message service center, the sending SMSC receiving a short message from the calling terminal; Wherein the short message includes at least the called terminal phone number; checking whether the calling SMSC checks whether the telephone number station number of the called terminal matches predetermined acceptance station number information, and the telephone number of the called terminal. Transmitting the short message to the called terminal if the station number matches the predetermined accommodating station information; and distributing the short message into the short message if the telephone number of the called terminal does not match the predetermined accommodating station information. And transmitting to the device. The short message transmission method for a message service center is provided, and there is provided a system, apparatus, and recording medium that allows the implementation of the short message transmission method in the art short message service center.

At this time, the short message distribution device executes the step of searching for the incoming SMSC corresponding to the telephone number station number of the called terminal by using the stored short message service center information and transmitting the short message to the retrieved incoming SMSC. Can be.

In addition, in the short message transmission method in the short message service center according to the present invention, the short message may be transmitted and received through an IP network.

According to a preferred embodiment of the present invention, there is provided a method for transmitting a short message received from an originating terminal to a called terminal, wherein the short message includes at least the called terminal telephone number, and the originating SMSC is received from the originating terminal. When the received short message is received, checking whether or not the telephone number station number of the called terminal matches a predetermined accommodating station number, and if so, the sending SMSC transmitting the short message to the called terminal; If it does not match, the outgoing SMSC sends the short message to the short message distributing device, and the short message distributing device uses the pre-stored short message service center information and the incoming SMSC corresponding to the telephone number station number of the called terminal. Retrieving a message, and the short message distribution device is configured to retrieve the short message. And a method for transmitting the short message to the called terminal, wherein the short message is transmitted to the called terminal. A system, apparatus, and record carrier are provided.

In the step of sending the short message to the short message distribution device by the originating SMSC and the short message distribution device to the searched incoming SMSC, the short message may be transmitted and received through an IP network.

According to another aspect of the present invention, in a short message distribution device coupled through an IP network with a plurality of short message service centers for distributing short messages to a plurality of short message service centers, a plurality of short message service center information is stored. A storage unit, wherein the short message service center information includes at least accommodating station number information corresponding to each short message service center; and a receiving unit receiving a short message from an originating SMSC, wherein the short message is at least the destination terminal of the destination terminal. And a retrieval unit for retrieving an incoming SMSC corresponding to the telephone number station number of the called terminal using the short message service center information stored in the storage unit, and transmitting the short message to the incoming SMSC. Short message distribution apparatus comprising a transmitting unit It is provided.

In the short message transmitting / receiving method according to the related art, the short message routing between the existing short message service centers (SMSCs) is performed by the receiving SMSC identified using the information stored in the database when the receiving SMSC is not the receiving station number. 7 A method of delivering a short message using a signaling network was used. In this case, the short message service center (SMSC) must manage the routing information and the station number for all the short message service centers (SMSC) in the network, as well as its receiving station number. This is a burden on the signaling network and requires complicated routing processes. The present invention is intended to eliminate these problems and will be described in detail below with reference to the accompanying drawings, preferred embodiments of the present invention.

2 is a diagram illustrating a short message transmitting and receiving system according to an exemplary embodiment of the present invention, and FIG. 3 is a flowchart illustrating a short message transmitting and receiving method according to an exemplary embodiment of the present invention.

Referring to FIG. 2, the short message transmission / reception system according to the present invention includes a base station transceiver base system (BTS) 115a and 115b, a base station controller (BSC) 120a and 120b, and an originating exchange (MSC). Mobile Switching Center (125), Home Location Register (HLR) (130a, 130b), Outgoing Short Message Service Center-Short Message Service Center (135), Incoming SMSC (140a, 140b, ... 140n), a destination exchange 145, and a message center router 210. Of course, although not shown in Fig. 2, it is located outside the home network (i.e., in a visitor network). The apparatus may further include a visitor location register (VLR), which is a device for registering the location of the connected user terminal (ie, the calling terminal 110 and the called terminal 150). Base station (BTS: Base Station Transceiver Subsystem) (115a, 115b), base station controller (BSC: Base Stat ion Controller (120a, 120b), Mobile Switching Center (MSC) (125), Home Location Register (HLR) (130a, 130b), Outgoing Short Message Service Center-Short Message Service Center (135), the incoming SMSC (140a, 140b, ..., 140n), the destination exchanger 145, and the functions and uses of the Visitor Location Register (VLR) have been described, and thus redundant description thereof will be omitted here. Shall be.

The MC router 210 receives the short message from the originating SMSC 135, which receives the short message from the calling terminal 110 through the IP network, and receives the short message corresponding to the recipient's telephone number station number of the corresponding short message. After selecting (140a), it is a kind of short message distribution device that performs the function of transmitting a short message (Short Message) over the IP network to the selected incoming SMSC (140a). That is, the MC router 210 stores the accommodating station number information for each short message service center, and transmits the short message received from the originating SMSC 135 to the appropriate incoming SMSC 140a using the corresponding information. The method for transmitting the short message to the incoming SMSC 140a may include encoding the short message and then transmitting the encoded short message to the incoming SMSC 140a. By adding header information that designates the destination SMSC 140a as a destination address to the short message, the method may be applied such that the short message is transmitted to the destination SMSC 140a.

Hereinafter, a method of transmitting and receiving a short message according to the present invention will be described with reference to the flowchart shown in FIG. 3.

Referring to FIG. 3, in step 310, the originating SMSC 135 transmits a short message transmitted from the originating terminal 110 via the base station (BTS) 115a, the base station controller (BSC) 120a, and the originating exchange 125. Receive a Short Message. The short message includes at least the message content and the telephone number of the called terminal 150, and the originating SMSC 135 is a short message service center in charge of the telephone number station number of the calling terminal 110. In step 315, the originating SMSC 135 checks whether the telephone number station number of the called terminal 150 included in the short message received in step 310 is the telephone number station number in charge of the originating SMSC 135. do.

For example, if the telephone number of the calling terminal 110 is 016-123-4567, the calling SMSC 135 is a short message service center in charge of the station number 123, and in step 315, the calling SMSC 135 is the short message. It is to check whether or not the telephone number of the called terminal 150 designated as the destination of the message is designated as 016-123-xxxx.

As a result of the check in step 315, if the telephone number station number of the called terminal 150 is the telephone number station number in charge of the calling SMSC 135, the flow proceeds to step 320 in which the calling SMSC 135 transmits the calling switch 125 and the base station controller. (BSC) 120a transmits the short message to the destination terminal 150 via the base station (BTS) 115a.

Of course, the path from which the short message is transmitted from the originating terminal 110 to the originating SMSC 135 may be different from the path from which the short message is transmitted from the originating SMSC 135 to the destination terminal 150. As a result of the check, if the telephone number station number of the called terminal 150 is not the telephone number station number in charge of the originating SMSC 135, the flow proceeds to step 325. Although the telephone number of the calling terminal 110 is 016-123-4567, the telephone number of the called terminal 150 is designated as 016-456-xxxx, and the station number is different.

In step 325, the originating SMSC 135 transmits the short message received from the originating terminal 110 to the MC router 210 through the IP network in step 310. That is, in the short message transmission / reception method according to the present invention, unlike the short message transmission / reception method according to the prior art, the originating SMSC 135 does not need to select the incoming SMSC 140a to transmit the short message. It is not necessary to store short message service center information. Therefore, the load for retrieving the incoming SMSC 140a from the outgoing SMSC 135 can be reduced, and a short message is transmitted and received through the IP network. 7 It can reduce the traffic load of the signaling network.

In the method of transmitting a short message from the outgoing SMSC 135 to the MC router 210 or the MC router 210 transmitting the short message to the incoming SMSC 140a, the short message is encoded and then transmitted. For example, there may be a method of adding header information including a destination address to the short message and transmitting the same to the destination.

For example, the MC router 210 manages information on all short message service centers (SMSCs) and receiving station numbers in a network, and establishes a TCP connection for transmitting a message with a short message service center (SMSC). In this case, the short message service center (SMSC) and the MC router 210 may use SMCI, which is a server-client standard using TCP / IP. That is, the outgoing SMSC 135 transmits a Short Message Delivery Point to Point (SMDPP) message to the DELIVER, and the MC router 210 receiving the DELIVER sends the corresponding SMDPP message to the SUBMIT. 140a). However, in the case of SMS_NOT, it is encapsulated in a separate message using the SMCI standard and transmitted.

In step 330, the MC router 210 receives a short message from the originating SMSC 135, and proceeds to step 335 to receive a call using the pre-stored short message service center information (e.g., a receiving station number). The terminal 150 searches for the incoming SMSC 140a corresponding to the telephone number. The incoming SMSC 140a is a short message service center in charge of the telephone number station number of the recipient designated by the subscriber who sent the short message. When the incoming terminal 150 searches for the incoming SMSC 140a corresponding to the telephone number station number, the step is performed. At 340, the MC router 210 transmits the short message received through step 330 to the incoming SMSC 140a retrieved through the IP network.

Since the process of transmitting the short message to the destination terminal 150 by the incoming SMSC 140a is the same as the general short message transmission process, a description thereof will be omitted. In addition, the present invention is not limited to the above embodiment. Many variations are possible, of course, by one of ordinary skill in the art within the spirit of the invention.

As described above, the short message distribution system and apparatus according to the present invention, if the recipient phone number station number of the short message is not the station number in charge of the specific short message service center (Short Message Service Center), MC of the short message distribution process The short message management procedure of the short message service center (SMSC) can be simplified by allowing the message center router to process the short message service. In addition, the present invention allows the short message transmission and reception between the short message service centers to be performed through the IP network. . 7 Reduce the traffic load on the signaling network.

In addition, the present invention allows each short message service center to flexibly cope with system expansion and service expansion because there is no burden of own station number management, third party station number management and acceptance station number management.

1 is a view showing a short message transmission system according to the prior art.

2 is a diagram illustrating a short message transmitting and receiving system according to an exemplary embodiment of the present invention.

3 is a flowchart illustrating a method of transmitting and receiving a short message according to an exemplary embodiment of the present invention.

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

115a, 115b: Base Station Transceiver Subsystem (BTS)

120a, 120b: Base Station Controller (BSC)

125: outgoing exchange

130a, 130b: Home Location Register (HLR)

135: outgoing SMSC

140a, 140b, ..., 140n: incoming SMSC

145: incoming exchange

210: MC Router (Message Center Router)

Claims (6)

Claims [1] A method for transmitting a short message received to a called terminal in a mobile communication service system having a plurality of short message centers having individually assigned telephone number numbers to be accommodated. The originating SMSC receiving a short message from the originating terminal, the short message comprising at least the called terminal telephone number; Determining, by the originating SMSC, whether or not the station number of the called terminal number corresponds to predetermined acceptance station number information; If it matches, sending the short message to a called terminal; And If it does not match, sending the short message to a short message distribution device, And the short message distribution device extracts an incoming SMSC having the station number of the called terminal telephone number as the receiving station number and transmits the short message to the incoming SMSC. delete The method of claim 1, The short message is transmitted and received through the IP network between the originating SMSC, the short message distribution device, and the incoming SMSC. Short message transmission method in a short message service center, characterized in that. Claims [1] A method for transmitting a short message to a called terminal, the short message comprising at least a called terminal number received from an originating terminal in a mobile communication service system having a plurality of short message centers each having an individually assigned telephone number station number. Determining, by the calling SMSC, if the short message is received from the calling terminal, whether or not the station number of the called terminal phone number corresponds to a predetermined acceptance station number; If it matches, sending the short message to the called terminal by the sending SMSC; If it does not match, sending the short message to the short message distribution device; Retrieving, by the short message distribution device, an incoming SMSC which is preset to correspond to the station number of the called terminal telephone number by using the stored short message service center information; Sending, by the device for short message distribution, the short message to the retrieved incoming SMSC; Sending, by the incoming SMSC, the short message to a called terminal; Short message transmission method comprising a. The method of claim 4, wherein The short message is transmitted and received through the IP network between the originating SMSC, the short message distribution device, and the incoming SMSC. Short message transmission method characterized in that. A short message distributing device coupled via an IP network with said plurality of short message service centers to distribute received short messages to a plurality of short message centers individually assigned to telephone number numbers to be accommodated, A storage for storing a plurality of short message service center information, wherein the short message service center information includes accommodating station number information corresponding to at least each short message service center; A receiving unit for receiving a short message including at least a called terminal phone number information from an outgoing SMSC; A retrieval unit for retrieving an incoming SMSC corresponding to the telephone number station number of the called terminal using the short message service center information stored in the storage unit; Including the transmitter for transmitting the short message to the retrieved incoming SMSC, The outgoing SMSC transmits the short message distribution apparatus to the short message distribution device when the station number of the called terminal phone number included in the short message received from the originating terminal is not the phone number station number pre-assigned to the outgoing SMSC. Device.