KR100812516B1 - System and method for processing short message service by number portability service - Google Patents

Abstract

The present invention relates to an apparatus for providing a number porting service between an originating short message service center and a home location register for receiving an incoming subscriber numbered from a second generation communication network to a third generation communication network or from a third generation communication network to a second generation communication network. The apparatus comprises: means for recording subscriber information including subscriber telephone number (MSISDN), terminal number (IMSI) and routing information of the subscriber's number porting information and the home location register containing the numbered subscriber; Means for determining whether the called party is to be ported with reference to the recording means when receiving an incoming call of the short message to be delivered to the called party from the calling short service center; And when the called subscriber is determined to be a number ported subscriber, routing to the corresponding home location register according to the routing information of the recording means, and requesting the home location register to request location information of the called subscriber.

Portability, NPS, Short Message, Subscriber Number

Description

Method and apparatus for processing short message according to number portability service between 2nd and 3rd generation mobile communication networks {System and method for processing short message service by number portability service}

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

1 is a configuration diagram of a communication network in which the present invention is realized.

2 is a flowchart of number portability call processing in the first embodiment according to the present invention.

3 is a flowchart of number portability call processing in a second embodiment according to the present invention.

4 is a flowchart of number portability call processing in a third embodiment according to the present invention.

5 is a flowchart of number portability call processing in a fourth embodiment according to the present invention.

6 is a flowchart of number portability call processing in a fifth embodiment according to the present invention.

7 is a flowchart of number portability call processing in the sixth embodiment according to the present invention.

8 is a functional block diagram of a number portability processing apparatus according to the present invention.

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

100 ... 2 Generation Network 200 ... 3 Generation Network

300 ... Number portability processing unit

The present invention relates to a number portability service in a mobile communication network environment. More specifically, the present invention relates to a method of processing a short message (SMS) according to the number portability service between a second generation network and a third generation communication network or between different mobile communication providers.

The recent rapid development of mobile communication technology has rapidly promoted the popularization of mobile communication terminals, transforming our lives so that most ordinary people always carry mobile communication terminals such as mobile phones and PDAs. The mobile communication terminal has an effect of allowing the user to more easily access the communication network while efficiently allocating system resources of the conventional communication system.

The development of the mobile communication technology is progressing from the second generation mobile communication technology of the CDMA method and the GSM method to the third generation mobile communication technology such as the WCDMA method and the CDMA2000 method. It is expected that subscribers who used a communication network based on the existing second generation mobile communication technology will move to a communication network based on the newly implemented third generation mobile communication technology. Accordingly, subscribers using the existing second generation communication network are newly registered with the telephone number according to the third generation communication network in order to use the third generation communication network.

Thus, the subscribers who used the existing telephone numbers have to bear the inconvenience of changing the telephone number by changing the telephone number in order to use the third generation communication network. In order to solve this problem, a number portability processing method using the 3G network service has emerged while maintaining the existing phone number.

The number portability processing method includes a call forwarding method and an intelligent network method. The dual call forwarding method is a relatively easy method to implement, and is mainly used for local telephone number portability processing. Next, the intelligent network method is a method that requires a change in the carrier network, and is used in the mobile phone number portability processing method. The intelligent network method used in the number portability processing method between mobile communication providers is a method of supporting number portability by constructing NPDB (Number Portability Database) system. In this method, all calls are handled in a normal procedure, but the call processing of the number ported subscriber is handled specially through the intelligent network.

However, some problems arise when the number portability processing between the 2nd generation network and the 3rd generation network is performed using a conventional method of number portability between operators. First, a number portability database (NPDB) used in a second generation communication network stores a mobile directory number (MDN) and a routing number of a number portability service subscriber. However, 3G communication networks use two subscriber numbers (MSISDN) and a mobile number (IMSI). Therefore, in order to process the subscriber number ported from the second generation communication network to the third generation communication network using the existing number portability method, there is a problem that it is difficult to distinguish the subscribers because the number format is different between the second generation network and the third generation communication network.

In addition, using the existing method, the home location register of the second generation communication network is inquired at the short service center of the second generation communication network. There is a problem in that a complex call processing process such as transmitting a short message to a generation network and inquiring a home location register of a third generation network is performed accordingly. In particular, in this process, the protocols used in the 2nd and 3rd generation networks are different from each other, which causes compatibility problems due to communication of call processing and information data during number portability processing.

That is, in the conventional method, since the call processing traffic increases, the load of the system related to the call processing increases, so that the burden of the system increase due to the number porting process increases, and the call connection time increases due to the increase of call processing traffic. There is.

The present invention was devised to solve the above problems, and simplifies a complicated call processing procedure when processing the number portability service of a short message between a 2nd generation network and a 3rd generation network, and is housed in a home location register of a 3rd generation network. The purpose of this is to be able to handle number porting service even if subscriber phone number format is different.

It is also an object of the present invention to provide an apparatus and a system and a method thereof, which can concurrently process number portability short message between operators.

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

In order to achieve the above object, a short message processing system for providing number portability between a second generation communication network and a third generation communication network according to the first aspect of the present invention is a third generation communication network in a second generation communication network from a second generation originating subscriber terminal. A second generation short message service center (2G-SMSC) which receives a short message to be delivered to the called party which has been moved to the number, and routes it to a corresponding third generation destination exchange; A third generation home that determines the number portability of the called subscriber according to the incoming inquiry request from the second generation short message service center, and receives the called subscriber when the called subscriber moves from the second generation communication network to the third generation communication network; A number porting device (FNPS) for requesting location information of the called subscriber to a location register; And a third generation home location register (3G-HLR) for inquiring the location information of the called subscriber according to the location information request of the number porting device and delivering the extracted location information to the second generation short service center.

In addition, a method for processing a short message to be delivered to the third generation called subscriber number number transfer from the second generation communication network to the third generation communication network according to the second aspect of the present invention,

(1) receiving a short message to be delivered from the second generation calling subscriber to the called subscriber at the calling short service center of the second generation communication network;

In the number porting device for interfacing the number porting procedure between the second generation and third generation communication network,

(2) determining the portability of the called subscriber by using the called number included in the short message at the request of the calling short service center;

(3) When the called subscriber has ported number from the 2nd generation communication network to the 3rd generation communication network, routing information of the 3rd generation home location register accommodating the called subscriber is extracted to query the location information of the called subscriber. Doing;

(4) requesting the location information of the called subscriber to the third generation home location register (at this time, replacing the originating signal point of the location information request message with the signaling point of the second generation network short-term service center);

(5) extracting, by the third generation home location register, location information of the called subscriber and transmitting the location information to the calling party short-term service center;

(6) forwarding the short message to the corresponding third generation destination exchange based on the location information at the calling short service center.

A short message processing system for providing number portability between a second generation communication network and a third generation communication network according to a third aspect of the present invention is to be transferred from a second generation originating subscriber terminal to a called subscriber who has moved from a third generation communication network to a second generation communication network. A second generation short service center (2G-SMSC) which receives the short message and routes it to the corresponding second generation destination exchange; A second generation home that determines the number portability of the called subscriber according to an incoming call request from the second generation short message service center and accommodates the called subscriber when the called subscriber moves from a third generation communication network to a second generation communication network; A number porting device (FNPS) for requesting location information of the called subscriber to a location register; And a second generation home location register (2G-HLR) that inquires the location information of the called subscriber and responds to the second generation short message service center in response to the location information request of the number portability processor. .

According to a fourth aspect of the present invention, a method for processing a short message to be delivered to a second generation destination subscriber numbered from a third generation communication network to a second generation communication network by a second generation originating subscriber includes:

(1) receiving a short message to be delivered from the second generation calling subscriber to the called subscriber at the calling short service center of the second generation communication network;

In the number porting device for interfacing the number porting procedure between the second generation and third generation communication network,

(2) determining the portability of the called subscriber by using the called number included in the short message at the request of the calling short service center;

(3) Routing information of the dual stack second generation home location register accommodating the called subscriber in order to query the location information of the called subscriber when the called subscriber moves from the third generation communication network to the second generation communication network. Extracting a step; (In this case, the dual stack refers to the ability to recognize both the message of 2G or 3G messages)

(4) requesting the location information of the called subscriber to the second generation home location register (at this time, replacing the originating signal point of the location information request message with the signal point of the second generation network originating short message service center);

(5) extracting, by the second generation home location register, location information of the called subscriber and transmitting it to the calling party short-term service center;

(6) forwarding the short message to the corresponding second generation destination exchange based on the location information in the calling short service center.

According to a fifth aspect of the present invention, a method for processing a short message to be delivered to a second-generation called party numbered from a third-generation communication network to a second-generation communication network is provided.

(1) receiving a short message to be delivered from the second generation calling subscriber to the called subscriber at the calling short service center of the second generation communication network;

In the number porting device for interfacing the number porting procedure between the second generation and third generation communication network,

(2) determining the portability of the called subscriber by using the called number included in the short message at the request of the calling short service center;

(3) When the called subscriber has ported a number from the 3rd generation communication network to the 2nd generation communication network, routing information of the 2nd generation home location register accommodating the called subscriber is extracted to query the location information of the called subscriber. Doing;

(4) requesting the location information of the called subscriber to the second generation home location register (wherein the location information request message is converted according to the second generation communication network protocol so that the second generation home location register can be recognized);

(5) extracting, by the second generation home location register, location information of the called subscriber and transmitting it to the number mobile device;

(6) converting, from the number mobile device, the location information response message transmitted from the second generation home location register according to the third generation communication network protocol and transmitting the converted location information response message to the second generation calling party short-term service center;

(7) forwarding the short message to the corresponding second generation destination exchange based on the location information in the calling short service center.

A short message processing system for providing number portability between a second generation communication network and a third generation communication network according to a sixth aspect of the present invention is to be transferred from a third generation originating subscriber terminal to a called subscriber who has moved from a second generation communication network to a third generation communication network. A third generation short service center (3G-SMSC) which receives the short message and routes it to the corresponding third generation destination exchange; A third generation home that determines the number portability of the called subscriber according to the incoming inquiry request from the third generation short message service center and accommodates the called subscriber when the called subscriber moves from the second generation communication network to the third generation communication network; A number porting device (FNPS) for requesting location information of the called subscriber to a location register; And a third generation home location register (3G-HLR) that inquires the location information of the called subscriber and responds to the third generation short message service center in response to the location information request of the number portability processor. .

A method for processing a short message to be delivered to a third generation called subscriber who has been numbered from the second generation communication network to the third generation communication network according to the seventh aspect of the present invention,

(1) receiving a short message to be delivered from the third generation calling subscriber to the called subscriber at the calling short service center of the third generation communication network;

In the number porting device for interfacing the number porting procedure between the second generation and third generation communication network,

(2) determining the portability of the called subscriber by using the called number included in the short message at the request of the calling short service center;

(3) When the called subscriber has ported number from the 2nd generation communication network to the 3rd generation communication network, routing information of the 3rd generation home location register accommodating the called subscriber is extracted to query the location information of the called subscriber. Doing;

(4) requesting location information of the called subscriber to the third generation home location register (at this time, replacing the originating signal point of the location information request message with the signal point of the third generation network short-term service center);

(5) extracting, by the third generation home location register, location information of the called subscriber and transmitting the location information to the calling party short-term service center;

(6) forwarding the short message to the corresponding third generation destination exchange based on the location information at the calling short service center.

A short message processing system for providing number portability between a second generation communication network and a third generation communication network according to an eighth aspect of the present invention may be delivered from a third generation originating subscriber terminal to a called subscriber who has been moved from a third generation communication network to a second generation communication network. A third generation short service center (3G-SMSC) that receives the short message and routes it to the corresponding second generation destination exchange; A second generation home that determines the number portability of the called subscriber according to the incoming inquiry request from the third generation short message service center, and accommodates the called subscriber when the called subscriber moves the number from the third generation communication network to the second generation communication network; A number porting device (FNPS) for requesting location information of the called subscriber to a location register; And a second generation home location register (2G-HLR) for inquiring the location information of the called subscriber according to the location information request of the number portability processing apparatus and delivering the extracted location information to the short message service center.

According to a ninth aspect of the present invention, there is provided a method for processing a short message to be delivered to a second generation called subscriber who has been numbered from a third generation communication network to a second generation communication network.

(1) receiving a short message to be delivered from the third generation calling subscriber to the called subscriber at the calling short service center of the third generation communication network;

In the number porting device for interfacing the number porting procedure between the second generation and third generation communication network,

(2) determining the portability of the called subscriber by using the called number included in the short message at the request of the calling short service center;

(3) Routing information of the dual stack second generation home location register accommodating the called subscriber in order to query the location information of the called subscriber when the called subscriber moves from the third generation communication network to the second generation communication network. Extracting;

(4) requesting location information of the called subscriber to the second generation home location register (at this time, replacing the originating signal point of the location information request message with the signal point of the third generation network short-term service center);

(5) extracting, by the second generation home location register, location information of the called subscriber and transmitting it to the calling party short-term service center;

(6) forwarding the short message to the corresponding second generation destination exchange based on the location information in the calling short service center.

According to a tenth aspect of the present invention, a method for processing a short message to be delivered to a second generation called subscriber numbered from a third generation communication network to a second generation communication network is provided.

(1) receiving a short message to be delivered from the third generation calling subscriber to the called subscriber at the calling short service center of the third generation communication network;

In the number porting device for interfacing the number porting procedure between the second generation and third generation communication network,

(2) determining the portability of the called subscriber by using the called number included in the short message at the request of the calling short service center;

(3) When the called subscriber has ported a number from the 3rd generation communication network to the 2nd generation communication network, routing information of the 2nd generation home location register accommodating the called subscriber is extracted to query the location information of the called subscriber. Doing;

(4) requesting the location information of the called subscriber to the second generation home location register (wherein the location information request message is converted according to the second generation communication network protocol so that the second generation home location register can be recognized);

(5) extracting, by the second generation home location register, location information of the called subscriber and transmitting it to the number mobile device;

(6) converting, from the number mobile device, the location information response message transmitted from the second generation home location register according to the third generation communication network protocol and transmitting the converted location information response message to the third generation calling party short service center;

(7) forwarding the short message to the corresponding second generation destination exchange based on the location information in the calling short service center.

A method for processing a short message to be delivered to a called subscriber whose number is transferred to a third party communication network by a second generation calling subscriber according to an eleventh aspect of the present invention,

(1) receiving a short message to be delivered from the second generation calling subscriber to the called subscriber at the calling short service center of the second generation communication network;

In the number porting device for interfacing the number porting procedure between the second generation communication network and the third party communication network,

(2) determining the portability of the called subscriber by using the called number included in the short message at the request of the calling short service center;

(3) extracting routing information of a corresponding destination network when the destination subscriber number is transferred to a third party network;

(4) transmitting the routing information to the calling short service center;

(5) forwarding the short message to the corresponding third party communication network based on the routing information in the calling short service center.

A third generation calling subscriber according to a twelfth aspect of the present invention provides a method for processing a short message to be delivered to a called subscriber who has been ported to a third party communication network.

(1) receiving a short message to be delivered from the third generation calling subscriber to the called subscriber at the calling short service center of the third generation communication network;

In the number porting device for interfacing the number porting procedure between the third generation communication network and the third party communication network,

(2) determining the portability of the called subscriber by using the called number included in the short message at the request of the calling short service center;

(3) extracting routing information of a corresponding destination network when the destination subscriber number is transferred to a third party network;

(4) transmitting the routing information to the calling short service center;

(5) forwarding the short message to the corresponding third party communication network based on the routing information in the calling short service center.

Providing a number porting service between a calling short service center according to a thirteenth aspect of the present invention and a home location register for receiving incoming subscribers numbered from a second generation communication network to a third generation communication network or from a third generation communication network to a second generation communication network. The apparatus comprises: means for recording subscriber information including subscriber telephone number (MSISDN), terminal number (IMSI) and routing information of the subscriber's number porting information and routing information of the home location register to accommodate the numbered subscriber; Means for determining whether or not the called party is ported with reference to the recording means when receiving an incoming call of the short message to be delivered from the calling short service center to the called party; And when the called subscriber is determined to be a number ported subscriber, routing to the corresponding home location register according to the routing information of the recording means, and requesting the home location register to request location information of the called subscriber.

According to a fourteenth aspect of the present invention, there is provided a method for routing a short message to be delivered to a called subscriber who has been numbered from a second generation communication network to a third generation communication network or from a third generation communication network to a second generation communication network.

(a) receiving a routing request for a short message including a called number from a calling short service center;

(b) confirming whether or not the called subscriber is ported based on the called number;

(c) extracting routing information of a home location register that accommodates the called subscriber when the called subscriber is a number mobile subscriber;

(d) requesting location information of the called subscriber to the home location register.

In this case, if the calling short service center and the home location register belong to different communication networks and the home location register cannot recognize another protocol, receiving the location information of the called subscriber from the home location register. ; The method may further include converting the location information into a protocol suitable for the calling short service center and transmitting the same to the calling short service center.

When the home location register belongs to a third generation communication network, when the location information request is made, the destination number is replaced by a subscriber's telephone number (MSISDN) or a terminal number (IMSI) according to the number format accommodated in the home location register. The process further includes.

A recording medium on which a program for routing a short message to be delivered to a called subscriber who has been numbered from a second generation communication network to a third generation communication network or from a third generation communication network according to a fifteenth aspect of the present invention is recorded. Receiving a request for routing a short message including a called number from a short service center; (b) verifying whether the called subscriber is ported based on the called number; (c) extracting routing information of a home location register that accepts the called subscriber when the called subscriber is a number mobile subscriber; And (d) recording a program for executing a procedure for requesting the location information of the called subscriber to the home location register.

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

First, FIG. 1 shows a configuration of a communication network in which the present invention is realized.

As shown in the figure, the number portability short message processing system according to the present invention performs call processing according to the intergenerational or inter-company number portability service between the second generation communication network 100 and the third generation communication network 200. Referring to FIG. 1, a configuration of a communication network in which the present invention is realized may include a second generation communication network 100, a third generation communication network 200, and a public switched telephone network (PSTN) connecting the two communication networks with other service provider networks. , PLMN (Public Land Mobile Network) 330, FNPS (Flexible Number Portability Server) 300, which processes number portability between the communication networks, and mobiles joined to second and third generation networks, respectively. Communication terminals 110 and 210;

The second generation communication network 100 may include a base station transceiver (BTS) 121 that wirelessly communicates with the second generation mobile communication terminal 110, and a base station controller (BSC) 122 that controls the base station 121. ); Mobile exchanger 130; NO. 7 network 140; A home location register (HLR) 150; It includes a Dual Stack Short Message Service Center (DS-SMSC) 160.

The second generation wireless access network 120 serves to guarantee the mobility of the second generation mobile communication terminal 110 and performs hand-off and radio resource management functions. The wireless access network 120 is composed of a base station 121 and a base station controller 122 so that the mobile communication terminal 110 via the mobile switching unit 130, the NO. 7 allows access to network 140. In particular, the base station 121 receives a short message from the calling mobile terminal 110 using a paging channel or a traffic channel in the signal channel and transmits the short message to the base station controller 122. The base station controller 122 controls the base station 121, and assigns and releases a radio channel to the mobile communication terminal 110, transmit power control of the mobile communication terminal 110 and the base station 121, and soft handoff between cells. And hard handoff determination, transcoding and vocoding, and an operation and maintenance function for the base station 121.

The mobile switching unit 130 is a basic and additional service processing, incoming and outgoing call processing of the subscriber, location registration and handoff procedure processing, interworking with other networks, short message service to distinguish the voice call to short service center Routing and so on.

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

The No. 7 network 140 is a network that communicates between the mobile switch 130, the home location register 150, the number portability processing apparatus 300, and the short message service center 160 using the No. 7 protocol.

The short service center 160 processes a basic service for SMS, and temporarily stores or delivers data for processing a short message. In addition, it performs a gate function for a short service, performs a short service MAP (Mobile Application Part) processing function for interworking with the mobile switch 130 and the home location register 150, and for interworking with an external service provider. It also performs protocol matching.

In addition, the short message service center 160 supports a function of converting a protocol so that a message used for location information request and response can be used in both a second generation network and a third generation communication network (Dual Stack SMSC).

The third generation communication network 200 is a Radio Transceiver Subsystem (RTS) 221 for wireless communication with the third generation mobile communication terminal 210, and a radio control station (RNC: Radio Network Controller) for controlling the base station 221. (222); Circuit switch 230; Packet switch 235; IP backbone network 240; A DS-Home Location Register (DS-HLR) 250; Short service center 260 is included.

The third generation wireless access network 220 serves to guarantee the mobility of the mobile communication terminal 210 and performs hand-off and radio resource management functions. The radio access network 220 includes a base station 221 and a radio control station 222 to form an access network for connecting the mobile communication terminal 210 to a core network or a packet connection. do.

The third generation circuit switch 230 has a soft switching structure to speed up call processing in addition to the basic functions for voice call in the existing IS-95B network. Here, soft switching is a technology capable of processing voice, data, and video signals with a high speed packet switch by upgrading a circuit switch of a conventional exchange to a software switch.

The home location register (DS-HLR) 250 stores and manages subscriber information, additional service information for each subscriber, and location information of a mobile communication terminal. In particular, the home location register 250 stores profile information of the subscriber. This profile information includes the subscriber terminal's MSISDN (subscriber telephone number), IMSI (terminal number), subscribed additional service information, and the like. In particular, a USIM or UICC card is inserted into a terminal of the third generation communication network, and the terminal number (IMSI) is stored in the card. As a result, both the subscriber's telephone number and the terminal number may be used to distinguish the subscriber in the third generation communication network. Accordingly, the third generation home location register 250 receives subscriber information based on any one of the subscriber's telephone number and the terminal number.

The packet switch (SGSN) 235 has a hardware structure for providing an Asynchronous Transfer Mode (ATM) -based switch and routing connection for a general packet radio service (GPRS) service, and an operating system (OS) according to various data service processes. : Operating System). The operating system functions consist of GPRS mobility management, GPRS session management, GPRS authentication and billing functions.

The IP backbone network 240 is a communication network connecting the third generation circuit switch 230, the third generation home location register 250, and the number portability processing device 300 using the NO.7 protocol. It may also be interworked using the IP protocol.

The short service center 260 performs the same function as the short service center 160 of the second generation communication network. In addition, when a short message is transmitted and received from the mobile communication terminal 210, any one of a circuit switched network (CSN) and a packet switched network (PSN) may be used as an intermediary.

The mobile communication terminal (110, 210) is responsible for the basic call processing and location registration function and the attachment and origination function of the short message. Here, the second generation terminal 110 performs the incoming and outgoing through the second generation communication network, the third generation terminal 210 performs the incoming and outgoing through the third generation communication network. The mobile communication terminals 110 and 210 according to the present invention include cellular phones, personal communication service (PCS) phones, PDA phones, GSM phones, WCDMA phones, CDMA-2000 phones, DMB phones, and the like.

The public switched network 330 is a network in which a plurality of exchanges are connected to form a wide area communication network. In addition, it serves as a gateway connecting not only between the second generation communication network 100 and the third generation communication network 200 but also between other mobile communication service provider networks.

The number portability processing apparatus 300 supports the number portability service between the second generation communication network 100 and the third generation communication network 200. Also, it performs number portability service with other mobile communication provider networks. The number portability processing apparatus 300 receives a short message incoming inquiry request from a short service center 160 or 260 of a second generation communication network 100 or a third generation communication network 200, and refers to an internal database and corresponds to information corresponding to the inquiry request. Read and perform inquiry processing. In addition, the processed information is provided to the calling party short-term service center (160,260).

8 shows a configuration of a number portability processing apparatus and a database according to an embodiment of the present invention.

Referring to FIG. 8, the number portability processing apparatus 300 according to an embodiment of the present invention receives a request for performing number portability processing from the second generation communication network 100 or the third generation communication network 200, and is stored in advance. Referring to the number portability information database 310, processing is performed according to the request information. In addition, the number portability information database 310 stores the subscriber's telephone number and terminal number for distinguishing a plurality of subscribers, according to whether or not the number portability (between the second generation and third generation communication networks or between different service providers) Number routing) and routing paths to the transported network. In addition, the number portability processing apparatus 300 should be able to process different protocols of the second generation communication network 100 and the third generation communication network 200. Accordingly, a protocol conversion unit capable of recognizing each protocol and converting different protocols into corresponding protocols may be further included. Furthermore, if the home location register of the second generation or third generation communication network can perform the dual stack home location register function that supports all protocols used in each generation, the same effect as the protocol conversion unit can be obtained. Accordingly, embodiments of the present invention will be described in detail below.

In particular, since the third generation home location register 250 receives subscriber information based on any one of the subscriber's telephone number (MSISDN) and the terminal number (IMSI), the number portability processing apparatus 300 performs the number portability processing. By referring to the database 310, the operation of substituting each other with a number having a corresponding format according to the two criteria may be performed.

As such, the present invention provides a number portability processing apparatus 300 having a number portability information database 310 to implement a number portability service between a second generation communication network and a third generation communication network.

Hereinafter, a procedure for transmitting a short message to a called subscriber who has been ported between a 2nd generation network and a 3rd generation network or a different carrier network based on the system and the technical idea of the present invention in a network in which the present invention is implemented will be described in detail. Explain.

Example  One

The present embodiment relates to a number portability service processing method for allowing a short message sent from a second generation communication network to be received by a subscriber who has been numbered from second generation to third generation.

Hereinafter, this embodiment will be described in detail with reference to FIG. 2.

First, a 2G network subscriber (hereinafter, referred to as 2G) service subscriber enters a phone number of a called subscriber using his calling terminal 110 and sends an SMS. At this time, the called subscriber is a subscriber who has moved from 2G to 3G (3rd generation communication network). Here, the number porting means that the 2G subscriber changes the service to 3G while maintaining the phone number used in 2G when the service is changed to 3G.

The calling 2G short message service center (DS-SMSC) 160 that receives the short message including the called party number of the called subscriber from the calling terminal 110 receives the number portability processing device (hereinafter referred to as FNPS) 300. Send inquiry request message. At this time, the incoming call request message is transmitted through the NO.7 network. (11) In particular, the incoming call request message is transmitted using a protocol used by 3G. However, the present invention is not limited thereto, and various protocols may be used to exchange information between 2G SMSC and FNPS.

The FNPS 300 that receives the incoming inquiry request message determines whether the called subscriber has number portability using the number portability information database 310. That is, the database is queried based on the called number included in the called inquiry request message to determine whether the called subscriber is a number portable subscriber. At this time, the database stores the information that the called party number transfer from 2G to 3G. After determining the number portability of the called party in this way, the number portability processing apparatus 300 extracts the number portability information (eg, routing path) of the called party.

In accordance with the number porting information, 3G requests incoming information for transmitting a short message to a terminal (hereinafter referred to as a called terminal) of the called subscriber. Here, routing information for requesting the incoming information is read from the database. An incoming call message is transmitted to the 3G home location register (3G-HLR) 250 based on the read routing information. In addition, the incoming call message includes an outgoing signal point, and replaces the outgoing signal point with a signal point of the second generation communication network short-term service center. (13) In this case, when the incoming call message is transmitted to the 3G home location register. Since the 3G subscriber is given two types of telephone numbers, the process of replacing the called number format included in the incoming call message with the telephone number (assuming IMSI format) of the format accommodated in the 3G home location register is performed. .

The 3G home location register 250 extracts incoming information, which is routing information to the destination exchange that manages the short message incoming setting of the called terminal according to the received incoming inquiry message. The incoming information thus extracted is included in an incoming call response message in response to the incoming call request and provided to the 2G SMSC.

The 2G SMSC forwards the short message to the corresponding destination exchange based on the incoming information included in the received message.

As such, the present embodiment provides a method for sending a short message to a terminal of a subscriber who has moved from 2G to 3G. Particularly, in the present embodiment, 2G is a CDMA method and 3G is a WCDMA method, but the present invention is not necessarily limited to this example. That is, the present invention can of course be applied to include both various ways of 2G and various ways of 3G.

Example  2

A second embodiment according to the present invention will be described with reference to FIG.

Embodiment 2 relates to a number portability service processing method for allowing a short message sent from 2G to be received by a subscriber who has ported number from 3G to 2G.

First, the 2G service subscriber enters the telephone number of the called subscriber using his calling terminal 110 and sends an SMS. At this time, the called subscriber is a subscriber who has moved from 3G to 2G.

Upon receiving the short message including the telephone number of the called party from the calling terminal, the calling second generation short service center (2G-SMSC) transmits the incoming call request message to the FNPS 300. (21)

Receiving the incoming call request message, the FNPS 300 determines the number portability of the called subscriber by referring to the number portability information database 310 and extracts the number ported information from 3G to 2G. The extracted number porting information includes routing information for receiving an incoming call with 2G stored in the database.

According to the routing information, the number portability processing apparatus 300 transmits an incoming call message to the corresponding 2G home location register 150. In this case, if the incoming call message received from the 2G SMSC 160 is in accordance with the 3G protocol, the FNPS 300 converts the message into a message that the 2G home location register can recognize.

The 2G home location register 150 extracts incoming information of the called terminal according to the incoming call request, and then generates an incoming call response message. This message contains the incoming information. The incoming call response message thus generated is provided to the 2G SMSC 160. Here, when the incoming call request message received from the 2G SMSC is for 3G, the incoming call response message is also converted by the FNPS 300 into a 3G message. (24, 25)

The 2G SMSC sets up a call to the corresponding destination exchange based on the incoming information included in the received message.

Example  3

A third embodiment according to the present invention will be described with reference to FIG.

Embodiment 3 relates to a number portability service processing method for receiving a short message sent from 3G to a subscriber who has ported number from 2G to 3G.

First, the 3G service subscriber enters the telephone number of the called subscriber using his calling terminal 210 and sends an SMS. At this time, the called subscriber is a subscriber who has moved from 2G to 3G.

The third generation short message service center (3G-SMSC) 260 that receives the short message including the telephone number of the called subscriber from the calling terminal 210 transmits the incoming inquiry request message to the FNPS 300. At this time, the incoming call request message is transmitted through the IP backbone network. (31) In the IP backbone network, the NO.7 protocol is used, but the present invention is not limited thereto, and information between 3G SMSC and FNPS can be exchanged. Of course, various protocols such as the IP protocol can be used.

Receiving the incoming call request message, the FNPS 300 determines the number portability of the called subscriber by referring to the number portability information database 310 and extracts the number ported information from 2G to 3G. The extracted number porting information includes routing information for receiving an incoming call with 3G stored in the database.

According to the routing information, the number portability processing apparatus 300 transmits an incoming call inquiry message to the corresponding 3G home location register 250. In this case, since the 3G home location register 250 may recognize the incoming call message received from the 3G SMSC 260, a separate message conversion operation is not necessary. Here, the incoming inquiry message includes an outgoing signal point and replaces the outgoing signal point with a signal point of the third generation telecommunication network originating short message service center. In addition, since the 3G subscriber is given two types of telephone numbers, the process of replacing the format of the called number included in the incoming call message with the telephone number (assuming IMSI format) of the format accommodated in the 3G home location register is further performed. It may include. (33)

The 3G home location register 250 extracts the incoming information according to the incoming call request and generates an incoming call response message. The message is loaded with the incoming information. The incoming call response message thus generated is provided to the 3G SMSC 260. (34)

The 3G SMSC 260 sets up a call to the destination exchange based on the reception information included in the received message.

Example  4

A fourth embodiment according to the present invention will be described with reference to FIG.

Embodiment 4 relates to a number portability service processing method for receiving a short message sent from 3G to a subscriber who has ported number from 3G to 2G.

First, the 3G service subscriber uses his originating terminal 210 to enter a phone number of the called subscriber and sends an SMS. At this time, the called subscriber is a subscriber who has moved from 3G to 2G.

The 3G SMSC 260 that receives the short message including the telephone number of the called subscriber from the 3G originating terminal 210 transmits the incoming inquiry request message to the FNPS 300. (41)

The FNPS 300 receiving the incoming call request message determines whether the called subscriber has number portability by referring to the number portability information database 310, and extracts the number ported information from 3G to 2G. The extracted number porting information includes routing information for receiving an incoming call with 2G stored in the database. (42)

The incoming call message is sent to the 2G home location register 150 according to the routing information. In this case, since the 2G home location register 150 cannot process the incoming call request message used in 3G, the FNPS 300 converts the incoming call request message to be processed by the 2G home location register. It may further include. The converted 2G incoming call request message is transmitted to the corresponding 2G home location register 150. (43)

Thereafter, the 2G home location register 150 extracts the incoming information according to the message to generate the incoming information response message. The incoming information response message thus generated is not recognized by the 3G SMSC 260. Thus, to convert the 3G SMSC into a message that can be recognized, the called party response message is transmitted to the FNPS.

The FNPS 300 converts the incoming information response message to be used in 3G, and then transfers the message to the 3G SMSC 260. (45)

The 3G SMSC 260 establishes a call to the corresponding destination exchange based on the incoming information included in the received destination information response message.

Example  5

A fifth embodiment according to the present invention will be described with reference to FIG.

Embodiment 5 relates to a number portability service processing method for allowing a short message sent from 2G to be received by a 2G subscriber who has been ported to another mobile service provider.

First, a 2G service subscriber enters a phone number of a called subscriber and sends an SMS using his calling terminal. At this time, the called subscriber is a subscriber who has ported to another mobile communication provider network.

The calling party 2G SMSC 160 receiving the short message including the telephone number of the called subscriber from the calling terminal 110 transmits a short message incoming inquiry request message (SRIForSM) to the FNPS 300. . This call request message is a message according to the protocol used in 3G.

The FNPS 300 that receives the incoming inquiry request message determines the number portability of the called subscriber by referring to the number portability information database 310. At this time, based on the field recording whether the number porting corresponding to the called subscriber and the field recording the routing number is extracted information to the third party network, the routing number which is a route to the third party network In particular, the FNPS 300 recognizes the incoming call request message (SRIForSM) according to the protocol used by the 3G, and performs processing accordingly.

The FNPS 300 determines that the called subscriber has moved to a third party network and provides the calling party 2G SMSC 160 with the routing number extracted from the database. In this case, since the 2G SMSC is transmitted as a message according to the 3G protocol, the extracted information is included in the incoming call response message (SRIForSMAck) according to the corresponding 3G protocol (SRIForSMAck [ported, RoutingDigits]) and transmitted. (53)

The 2G SMSC 160 transmits the short message to the corresponding destination network based on the received message. That is, it recognizes that the called subscriber is ported to another provider network according to the information contained in the message, and transmits a short message (submit_SM) to the called network by using routing numbers (RoutingDigits). 54)

Example  6

A sixth embodiment according to the present invention will be described with reference to FIG.

Embodiment 6 relates to a number portability service processing method for allowing a short message sent from 3G to be received by a 3G subscriber who has been ported to another mobile service provider.

First, the 3G service subscriber enters the telephone number of the called subscriber and sends an SMS using his calling terminal. At this time, the called subscriber is a 3G subscriber who has ported to another mobile communication provider network.

The calling party 3G SMSC 260 that receives the short message including the telephone number of the called subscriber from the calling terminal 210 transmits a short message incoming inquiry request message (SRIForSM) to the FNPS 300. . This incoming call request message is a message according to the protocol used in 3G.

The FNPS 300 that receives the incoming inquiry request message determines the number portability of the called subscriber by referring to the number portability information database 310. At this time, based on the field recording whether the number porting corresponding to the called subscriber and the field recording the routing number is extracted information to the third party network, the routing number which is a route to the third party network In particular, the FNPS 300 recognizes an incoming call request message (SRIForSM) according to the protocol used by the 3G and performs a processing accordingly.

The routing number extracted from the database is provided to the calling 3G SMSC 260. That is, the extracted information is included in the incoming call response message (SRIForSMAck) according to the 3G protocol (SRIForSMAck [ported, RoutingDigits]) and transmitted to the 3G SMSC 260. (63)

The 3G SMSC 260 forwards the short message to the corresponding destination network based on the received message. That is, it recognizes that the called subscriber has been ported to another provider network according to the information contained in the message, and transmits a short message to the called network using routing numbers according to the routing number (submit_SM). (64)

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

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

The present invention provides an effect of reducing the processing process by performing call processing distributed in the number portability processing in the number portability processing process when attempting to receive a short message between the 2nd generation network and the 3rd generation network or another service provider network.

In addition, the present invention provides a function of substituting two types of numbers assigned to 3G network subscribers into a form accommodated in 3G home location register. In particular, the protocol compatibility and conversion process between the 2nd generation network and the 3rd generation network can be processed together in the number portability processing, thereby reducing the call processing delay and the load of the system due to unnecessary processing procedures in the number portability processing between heterogeneous networks.

Claims (26)

A short message processing system for providing number portability between a second generation network and a third generation network, A second generation short message service center (2G-SMSC) which receives a short message to be delivered from a second generation calling subscriber terminal to a destination subscriber who has moved from a second generation communication network to a third generation communication network and routes it to a corresponding third generation destination exchange; 3 to determine the portability of the called subscriber according to the incoming inquiry request from the calling second generation short message service center, and when the called subscriber moves the number from the second generation communication network to the third generation communication network, 3 to accommodate the called subscriber. A number porting device (FNPS) for requesting location information of the called subscriber to a household home location register; And A third generation home location register (3G-HLR) for retrieving the location information of the called subscriber and delivering the extracted location information to the calling second generation short message service center according to the location information request of the number porting device; Number portability short message processing system. According to claim 1, wherein the number porting device Means for storing the subscriber's subscriber number (MSISDN), the terminal number (IMSI), the recipient's number porting information and the routing path to the third generation home location register. According to claim 2, wherein the number porting device And means for substituting a called number into a subscriber's telephone number (MSISDN) or a terminal number (IMSI) in accordance with the number format accommodated in the third generation home location register upon the location information request. The method of claim 1, wherein the caller second generation short service center is And a call forwarding request message to the number porting apparatus using a 3G network protocol. A method for routing a short message to be delivered to a third-generation called subscriber numbered from a second-generation communication network to a third-generation communication network by a second generation originating subscriber, (1) receiving a short message to be delivered from the second generation calling subscriber to the called subscriber at the calling short service center of the second generation communication network; In the number porting device for interfacing the number porting procedure between the second generation and third generation communication network, (2) determining the portability of the called subscriber by using the called number included in the short message at the request of the calling short service center; (3) When the called subscriber has ported number from the 2nd generation communication network to the 3rd generation communication network, routing information of the 3rd generation home location register accommodating the called subscriber is extracted to query the location information of the called subscriber. Doing; (4) requesting the location information of the called subscriber to the third generation home location register (at this time, replacing the originating signal point of the location information request message with the signaling point of the second generation network short-term service center); (5) extracting, by the third generation home location register, location information of the called subscriber and transmitting the location information to the calling party short-term service center; And (6) transmitting the short message to the corresponding third generation destination exchange based on the location information in the calling short service center. The method of claim 5, wherein If the called number is different from the number used in the third generation home location register, replacing the called number with any one of subscriber number (MSISDN) and terminal number (IMSI). A short message processing system for providing number portability between a second generation network and a third generation network, A second generation short message service center (2G-SMSC) which receives a short message to be delivered from the second generation originating subscriber terminal to the destination subscriber who has moved from the third generation communication network to the second generation communication network and routes it to the corresponding second generation destination exchange (2G-SMSC); A second generation home that determines the number portability of the called subscriber according to an incoming call request from the second generation short message service center and accommodates the called subscriber when the called subscriber moves from a third generation communication network to a second generation communication network; A number porting device (FNPS) for requesting location information of the called subscriber to a location register; And A second generation home location register (2G-HLR) that inquires the location information of the called subscriber and responds to the second generation short message service center according to the location information request of the number mobile device; Mobility Short Message Processing System. 8. The apparatus of claim 7, wherein the number porting device is And means for translating the second generation network protocol and the third generation network protocol from one another. 8. The system of claim 7, wherein the second generation short text service center And a call forwarding request message to the number porting apparatus using a 3G network protocol. The method according to claim 8 or 9, The second generation home location register responds to the number mobile device using the second generation communication network protocol, and the number mobile device converts the location information into a third generation communication network protocol to convert the location information of the called subscriber to the second generation short message service. System characterized in that delivered to the center. A method for routing a short message to be delivered to a second generation destination subscriber numbered from the third generation communication network to the second generation communication network by a second generation originating subscriber, (1) receiving a short message to be delivered from the second generation calling subscriber to the called subscriber at the calling short service center of the second generation communication network; In the number porting device for interfacing the number porting procedure between the second generation and third generation communication network, (2) determining the portability of the called subscriber by using the called number included in the short message at the request of the calling short service center; (3) Routing information of the dual stack second generation home location register accommodating the called subscriber in order to query the location information of the called subscriber when the called subscriber moves from the third generation communication network to the second generation communication network. Extracting; (4) requesting the location information of the called subscriber to the second generation home location register (at this time, replacing the originating signal point of the location information request message with the signal point of the second generation network originating short message service center); (5) extracting, by the second generation home location register, location information of the called subscriber and transmitting it to the calling party short-term service center; (6) transmitting the short message to the corresponding second generation destination exchange based on the location information in the calling short service center. A method for routing a short message to be delivered to a second generation destination subscriber numbered from the third generation communication network to the second generation communication network by a second generation originating subscriber, (1) receiving a short message to be delivered from the second generation calling subscriber to the called subscriber at the calling short service center of the second generation communication network; In the number porting device for interfacing the number porting procedure between the second generation and third generation communication network, (2) determining the portability of the called subscriber by using the called number included in the short message at the request of the calling short service center; (3) When the called subscriber has ported a number from the 3rd generation communication network to the 2nd generation communication network, routing information of the 2nd generation home location register accommodating the called subscriber is extracted to query the location information of the called subscriber. Doing; (4) requesting the location information of the called subscriber to the second generation home location register (wherein the location information request message is converted according to the second generation communication network protocol so that the second generation home location register can be recognized); (5) extracting, by the second generation home location register, location information of the called subscriber and transmitting it to the number mobile device; (6) converting, from the number mobile device, the location information response message transmitted from the second generation home location register according to the third generation communication network protocol and transmitting the converted location information response message to the second generation calling party service center; And (7) forwarding the short message to the corresponding second generation destination exchange based on the location information at the calling short service center. A short message processing system for providing number portability between a second generation network and a third generation network, An originating third-generation short message service center (3G-SMSC) which receives a short message to be delivered from the third-generation calling party terminal to the called subscriber who has moved from the second-generation communication network to the third-generation communication network and routes it to the corresponding third-generation destination exchange; 3 to determine the portability of the called subscriber according to the incoming inquiry request from the calling third generation short message service center, and to accept the called subscriber when the called subscriber moves from the second generation communication network to the third generation communication network. A number porting device (FNPS) for requesting location information of the called subscriber to a household home location register; And A third generation home location register (3G-HLR) that inquires the location information of the called subscriber and responds to the originating third generation short message service center according to the location information request of the number mobile device; Number portability short message processing system. A method for routing a short message to be delivered to a third-generation called subscriber who has been numbered from the second-generation communication network to the third-generation communication network. (1) receiving a short message to be delivered from the third generation calling subscriber to the called subscriber at the calling short service center of the third generation communication network; In the number porting device for interfacing the number porting procedure between the second generation and third generation communication network, (2) determining the portability of the called subscriber by using the called number included in the short message at the request of the calling short service center; (3) When the called subscriber has ported number from the 2nd generation communication network to the 3rd generation communication network, routing information of the 3rd generation home location register accommodating the called subscriber is extracted to query the location information of the called subscriber. Doing; (4) requesting location information of the called subscriber to the third generation home location register (at this time, replacing the originating signal point of the location information request message with the signal point of the third generation network short-term service center); (5) extracting, by the third generation home location register, location information of the called subscriber and transmitting the location information to the calling party short-term service center; And (6) transmitting the short message to the corresponding third generation destination exchange based on the location information in the calling short service center. A short message processing system for providing number portability between a second generation network and a third generation network, An originating third-generation short message service center (3G-SMSC) which receives a short message to be delivered from the third-generation calling party terminal to the called subscriber who has moved from the third-generation communication network to the second-generation communication network and routes it to a corresponding second-generation destination exchange; In response to a call request from the calling third-generation short-term service center, the caller determines whether the called party has number portability, and when the called party moves from a third-generation communication network to a second-generation communication network, 2 that accepts the called party. A number porting device (FNPS) for requesting location information of the called subscriber to a household home location register; And A second generation home location register (2G-HLR) for inquiring the location information of the called subscriber according to the location information request of the number porting device and delivering the extracted location information to the calling third generation short service center; Number portability short message processing system. A method for routing a short message to be delivered to a second-generation called subscriber who has been numbered from the third-generation communication network to the second-generation communication network. (1) receiving a short message to be delivered from the third generation calling subscriber to the called subscriber at the calling short service center of the third generation communication network; In the number porting device for interfacing the number porting procedure between the second generation and third generation communication network, (2) determining the portability of the called subscriber by using the called number included in the short message at the request of the calling short service center; (3) routing information of a dual stack second generation home location register accommodating the called subscriber in order to query the location information of the called subscriber when the called subscriber moves from a third generation communication network to a second generation communication network. Extracting; (4) requesting location information of the called subscriber to the second generation home location register (at this time, replacing the originating signal point of the location information request message with the signal point of the third generation network short-term service center); (5) extracting, by the second generation home location register, location information of the called subscriber and transmitting it to the calling party short-term service center; And (6) forwarding the short message to the corresponding second generation destination exchange based on the location information in the calling short service center. A method for routing a short message to be delivered to a second-generation called subscriber who has been numbered from the third-generation communication network to the second-generation communication network. (1) receiving a short message to be delivered from the third generation calling subscriber to the called subscriber at the calling short service center of the third generation communication network; In the number porting device for interfacing the number porting procedure between the second generation and third generation communication network, (2) determining the portability of the called subscriber by using the called number included in the short message at the request of the calling short service center; (3) When the called subscriber has ported a number from the 3rd generation communication network to the 2nd generation communication network, routing information of the 2nd generation home location register accommodating the called subscriber is extracted to query the location information of the called subscriber. Doing; (4) requesting the location information of the called subscriber to the second generation home location register (wherein the location information request message is converted according to the second generation communication network protocol so that the second generation home location register can be recognized); (5) extracting, by the second generation home location register, location information of the called subscriber and transmitting it to the number mobile device; (6) converting, from the number mobile device, the location information response message transmitted from the second generation home location register according to the third generation communication network protocol and transmitting the converted location information response message to the third generation calling party short service center; And (7) forwarding the short message to the corresponding second generation destination exchange based on the location information at the calling short service center. A method for routing a short message to be delivered to a second generation called party numbered by a second generation originating subscriber to a third-party carrier network. (1) receiving a short message to be delivered from the second generation calling subscriber to the called subscriber at the calling short service center of the second generation communication network; In a number porting device that interfaces a number porting procedure between networks of different operators, (2) determining the portability of the called subscriber by using the called number included in the short message at the request of the calling short service center; (3) extracting routing information of the called network accommodating the called subscriber, when the called subscriber has ported to a third party network; (4) transmitting the extracted routing information to the calling short service center; And (5) forwarding the short message to the corresponding third party communication network based on the routing information in the calling short service center. A method of routing a short message to be delivered to a third-generation called subscriber numbered by a third-generation calling subscriber to a third-party carrier network. (1) receiving a short message to be delivered from the third generation calling subscriber to the called subscriber at the calling short service center of the third generation communication network; In a number porting device that interfaces a number porting procedure between networks of different operators, (2) determining the portability of the called subscriber by using the called number included in the short message at the request of the calling short service center; (3) extracting routing information of the called network that accepts the called party when the called subscriber has ported to a third party network; (4) transmitting the routing information to the calling short service center; And (5) forwarding the short message to the corresponding third party communication network based on the routing information in the calling short service center. An apparatus for providing a number porting service between a calling short service center and a home location register for receiving a subscriber who has ported a number from a second generation communication network to a third generation communication network or a third generation communication network. Means for recording subscriber information, including subscriber telephone number (MSISDN), terminal number (IMSI), and subscriber's number porting information and routing information of a home location register for accommodating the numbered subscriber; Means for determining whether the called subscriber is to be ported with reference to the recording means as the incoming call of the short message to be delivered to the called subscriber is received from the calling short message service center; And when the called subscriber is determined to be a number ported subscriber, routing to a corresponding home location register according to the routing information of the recording means, and requesting the home location register for location information of the called subscriber. The method of claim 20, When the calling short service center and the home location register belong to different communication networks, and the home location register cannot recognize a different protocol, And means for receiving the location information of the called subscriber from the home location register, converting it to a protocol suitable for the calling short-term service center, and transmitting the converted location information. The method of claim 20 or 21, If the home location register belongs to the third generation communication network, And means for substituting a called number into a subscriber's telephone number (MSISDN) or a terminal number (IMSI) according to the number format accommodated in the home location register when the location information request is made. A method for routing a short message to be delivered to a called subscriber who has been numbered from a second generation network to a third generation network or from a third generation network to a second generation network. (a) receiving a routing request for a short message including a called number from a calling short service center; (b) confirming whether or not the called subscriber is ported based on the called number; (c) extracting routing information of a home location register that accommodates the called subscriber when the called subscriber is a number mobile subscriber; (d) requesting location information of the called subscriber to the home location register. The method of claim 23, When the calling short service center and the home location register belong to different communication networks, and the home location register cannot recognize a different protocol, Receiving the location information of the called subscriber from the home location register; Converting the location information into a protocol suitable for the calling short service center and transmitting the location information to the calling short service center. The method of claim 23 or 24, If the home location register belongs to the third generation communication network, And replacing the called number with a subscriber's telephone number (MSISDN) or a terminal number (IMSI) according to the number format accommodated in the home location register when the location information is requested. A recording medium having recorded thereon a program for routing a short message to be delivered to a called subscriber numbered from a second generation communication network to a third generation communication network or from a third generation communication network to a second generation communication network. (a) receiving a routing request for a short message including a called number from a calling short service center; (b) verifying whether the called subscriber is ported based on the called number; (c) extracting routing information of a home location register that accepts the called subscriber when the called subscriber is a number mobile subscriber; And (d) a computer-readable recording medium having recorded thereon a program for executing a procedure for requesting location information of the called subscriber to the home location register.

Images