KR100943735B1 - System and method for providing routing digits in mobile communication system - Google Patents

Abstract

Systems and methods are provided for providing routing digits in a mobile communication system. A system providing routing digits in a mobile communication system receives a Mobile Switching Center (MSC) and a Location Request message that transmits a Location Request message to attempt an incoming call to a called subscriber, and the incoming call is received. A flexible number routing and number portability server (FNPS) for transmitting a response message including subscriber number porting information and routing digits.

Flexible Number routing and number Portability Server (FNPS), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA)

Description

System and method for providing routing digits in mobile communication systems

The present invention relates to a system and a method for providing a routing digit in a mobile communication system, and more particularly, to provide a location of a ported out called subscriber (Flexible Number routing and number Portability Server, The present invention relates to a system and a method for simplifying a procedure for querying and responding to an FNPS and a processing procedure for a called location request message.

Since January 1, 2004, the Mobile Number Portability (MNP) has been implemented to maintain existing mobile phone numbers even if the service provider changes.

The launch of the MNP allowed SKT, KTF, and LGT subscribers to move to KTF and LGT, which had the largest number of subscribers in Korea, six months later, from July 1, 2004. Allowed number transfer to SKT and LGT.

From January 1, 2005, one year after the start of the MNP, LGT subscribers were allowed to expand the number transfer to SKT and KTF, allowing all three subscribers to freely enjoy their own tastes (rate plans and additional services, etc.). ), You can choose your mobile carrier while keeping your mobile number.

Three years after the implementation of the MNP, the number of mobile users is gradually increasing thanks to the mobile phone subsidies and the marketing policies of each mobile carrier. There is an active port out and port in to third-party customers.

1 and 2 illustrate a conventional call processing procedure for a ported out subscriber.

For reference, the incoming mobile phone number includes the station number of the A company, which is opened by the mobile carrier A, but has been ported to the mobile carrier B, and any caller requests a call connection by attempting to call the incoming mobile phone number. In this case, it is assumed that an incoming call is attempted through a mobile switching center (hereinafter referred to as MSC) of a mobile telecommunication company.

In this case, when the called mobile phone number uses a 2G communication network (hereinafter referred to as 2G), an MSC attempting to make an incoming call uses a 2G MSC, and the called mobile phone number uses a 3G communication network (hereinafter referred to as 3G). The attempted MSCs will be referred to as 3G MSCs and the HLRs will also be referred to as 2G HLR and 3G HLR.

1 is a conventional call processing procedure for a ported out subscriber when the incoming mobile phone number is 2G.

When the call is attempted from the originating mobile communication terminal, the 2G MSC 110 transmits a location request message (LOC) to the 2G HLR 120 to attempt an incoming call to the subscriber of its station number (S101).

After S101, the 2G HLR 120 inquires about the subscriber information stored in the mobile station to determine whether the number is transferred to the incoming mobile phone number, and the incoming mobile phone number has been ported out to a third party (B carrier). ) Is transmitted to the 2G MSC 110 together with the response message (LOC Ack) for the location request message (S102).

After S102, the 2G MSC 110 queries the FNPS 130, which manages the number mobile subscriber DB, whether the incoming mobile phone number has been ported (Number Portability Request, NP Request) (S103), and the FNPS responds to the query. In step S104, routing digits for the called mobile phone number are included in the response message.

After S104, the 2G MSC 110 refers to routing digits received from the FNPS 130, and moves B through a PGS (PCX Gateway System) (not shown), which serves as a gateway exchange between the external network and the internal network. By sending a call setup request message to the MSC (not shown) of the communication company, a call path is formed, and a call is made between the caller and the called party.

2 is a conventional call processing procedure for a ported out subscriber when the incoming mobile number is 3G.

When the call is attempted from the originating mobile communication terminal, the 3G MSC 210 transmits an incoming routing request message (SRI) to the FNPS 220 in order to attempt an incoming call to the subscriber of its station number (S201).

For reference, FNPS has a flexible number routing (FNR) function that recognizes the subscriber's number and terminal in a wideband code division multiple access (WCDMA) service and provides a call processing function to related equipment. Code Division Multiple Access (hereinafter referred to as CDMA) and a WCDMA number mobile subscriber system has a function for simultaneously handling the number porting service.

After S201, the FNPS 220 transmits an incoming routing request message (SRI) to the 3G HLR 230 to determine the location of the called terminal (S202), and the 3G HLR 230 sends the 3G subscriber information stored therein. 3G MSC (210) with the response message (LOC Ack) for the location request message to determine whether the number has been ported to the called mobile phone number, and that the called mobile number has been ported to a third party (B carrier). (S203).

After S203, the 3G MSC 210 transmits an IDP (Initial DP) message to the FNPS 220, which manages the number mobile subscriber DB, to obtain number porting information for the called mobile number (S204), and the FNPS 220. In response to this, the routing digits for the called mobile phone number are included in the response message and transmitted (S205).

After S205, the 3G MSC 210 refers to routing digits received from the FNPS 220, and moves B through a PGS (PCX Gateway System) (not shown), which serves as a gateway exchange between the external network and the internal network. By sending a call setup request message to the MSC (not shown) of the communication company, a call path is formed, and a call is made between the caller and the called party.

In the conventional scheme as described above, in case of a number ported called subscriber, different messages have to be processed by HLR and FNPS for handling incoming calls at the MSC, respectively, which increases network load and increases call processing time. there is a problem.

An object of the present invention is to simplify a call processing procedure by enabling routing processing for a terminal of a called subscriber by sending a single message of an MSC in a call processing procedure of a number ported called subscriber.

The objects of the present invention are not limited to the above-mentioned objects, and other objects that are not mentioned will be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, a system for providing routing digits in a mobile communication system according to an embodiment of the present invention includes an MSC for transmitting a location request message to attempt an incoming call to a called subscriber and the location request message. And a FNPS for transmitting a response message including the numbering information and routing digits of the called subscriber.

In order to achieve the above object, a method for providing routing digits in a mobile communication system according to an embodiment of the present invention comprises the steps of: receiving a location request message to attempt an incoming call to a called subscriber; And transmitting a response message including the numbering information and routing digits of the called party.

Specific details of other embodiments are included in the detailed description and drawings.

According to the system and method for providing routing digits in the mobile communication system of the present invention as described above, there are one or more of the following effects.

There is an advantage of reducing the network load of the call processing system.

In addition, there is an advantage of reducing the call setup waiting time of the subscriber due to the reduction of network load of the call processing system.

Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings.

However, the present invention is not limited to the embodiments disclosed below, but can be implemented in various different forms, and only the embodiments make the disclosure of the present invention complete, and the general knowledge in the art to which the present invention belongs. It is provided to fully inform the person having the scope of the invention, which is defined only by the scope of the claims.

Hereinafter, with reference to the drawings illustrating a configuration diagram or a processing flow diagram for explaining a system and method for providing routing digits in a mobile communication system according to embodiments of the present invention will be described in detail for the implementation of the present invention. Do it.

At this time, the same reference numerals throughout the specification refer to the same components, it will be understood that each configuration of the processing flow chart drawings and combinations of the flow chart drawings can be performed by computer program instructions.

Since these computer program instructions may be mounted on a processor of a general purpose computer, special purpose computer, or other programmable data processing equipment, those instructions executed through the processor of the computer or other programmable data processing equipment may be described in the flowchart configuration (s). It creates a means to perform the functions.

These computer program instructions may be stored in a computer usable or computer readable memory that can be directed to a computer or other programmable data processing equipment to implement functionality in a particular manner, and thus the computer usable or computer readable memory. It is also possible for the instructions stored in to produce an article of manufacture containing instruction means for performing the functions described in the flowchart configuration (s).

Computer program instructions It can also be mounted on a computer or other programmable data processing equipment, so a series of operating steps are performed on the computer or other programmable data processing equipment to create a computer-implemented process to perform the computer or other programmable data processing equipment. It is also possible for the instructions to provide steps for performing the functions described in the flowchart configuration (s).

In addition, each arrangement may represent a module, segment, or portion of code that includes one or more executable instructions for executing a specified logical function (s).

It should also be noted that in some alternative embodiments, the functions noted in the configurations may occur out of order.

For example, the two components shown in succession may in fact be performed substantially simultaneously or the components may sometimes be performed in the reverse order, depending on the function in question.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 is a diagram illustrating a configuration of a system for providing routing digits in a mobile communication system according to an embodiment of the present invention.

In a mobile communication system according to an embodiment of the present invention, a system 300 for providing routing digits is located between a mobile communication terminal 310, a mobile communication terminal 310, and a base station controller to provide a wireless link and a wired link. Base Transceiver Station (hereinafter referred to as BST) 320 for converting the signal format to suitably, Base Station Controller (hereinafter referred to as BSC) 330 in charge of managing and controlling Base Station 320, incoming call Receives the location request message from the MSC 340, the MSC 340, which transmits a location request message to attempt an incoming call to the subscriber, and transmits a response message including the numbering information and routing digits of the called party. Refer to the routing digits received from the FNPS 350, the HLR 360 including the location information and the subscriber information, and the subscriber information. Including the PGS (PCX Gateway System) (360) to perform teuweyi exchange roles.

Hereinafter, the configuration of the system 300 described above will be described in more detail.

For reference, the called mobile phone number referred to in the present invention includes a station number of the A company by opening in the mobile communication company A, but is currently being ported to the mobile communication company B, and any caller attempts to call the called mobile phone number. It requests a call connection, and assumes that an attempt is made to make an incoming call through the MSC of the mobile carrier A.

The mobile communication terminal 310 is generally a cellular phone, a personal digital assistant (PDA), a personal communication services phone (PCS), an IMT-2000 terminal (International Mobile Telecommunication-2000). ), Such as a Global System For Mobile Communication (GSM) terminal, and the like, which includes a device that provides a communication function for making a call or exchanging data while moving.

The BTS 320 performs a wireless modem function consisting of an antenna and a transmission / reception modem.

For reference, a channel from the mobile communication terminal 310 to the BTS 320 is called an uplink channel or a reverse channel, and a channel from the BTS 320 to the mobile communication terminal 310 is called a downlink channel or a forward channel.

In the present invention, a case in which a channel is connected and transmitted / received through a channel from the mobile communication terminal 310 to the BTS 320, that is, an uplink channel, will be described.

The BSC 330 instructs the BTS 320 to allocate the radio channel to the mobile communication terminal 310 while controlling the transmission output of the mobile communication terminal 310 while having 10 to 40 BTSs 320. do.

And it is a kind of small exchange that connects the voice communication path between the mobile communication terminal 310 connected to the BTS 320, and supports the handover to the mobile communication terminal 210 to move between the BTS (320).

Also, the BSC 330 may identify a location area identifier (LAI), which is a unique location area identification number assigned to each BSC 330, so that the mobile communication terminal 310 may know which location area it is. In order to broadcast periodically, the configuration of the BTS 320 and the BSC 330 is referred to as a base station subsystem (BSS).

The MSC 340 is a kind of telephone exchange having several BSCs 330 and providing a connection with an external landline or a mobile communication terminal elsewhere.

Of course, compared with a general telephone, since the mobility of the terminal must be supported, a function of transmitting a paging message for searching for a receiving terminal is added.

In the system of the present invention, the MSC 340 is divided into 2G MSC and 3G MSC, or composed of MSCs that can be used for both 2G and 3G, respectively, according to the case where the incoming mobile phone number uses 2G and 3G. Can be.

In the embodiment of the present invention will be described a case that is separated into MSC for 2G and MSC for 3G.

For reference, the mobile phone number using 2G has a carrier identification number of '011, 016, 017, 018 and 019 (hereinafter referred to as 01X)', and the mobile phone number using 3G is an integrated carrier identification number '010'. It is common to use, but currently, Code Division Multiple Access (CDMA) subscribers can use broadband code division multiple access (Wideband) to facilitate the transition from '01X' to '010' for each mobile carrier. Code Division Multiple Access (hereinafter referred to as WCDMA), a separate '010' number is assigned to a '01X' subscriber, so that voice, video (3G), and short message service can be used even with a '01X' number. In some cases, the mobile phone number using 3G is not limited to a '010' number because the service may be provided so that both a multimedia call (hereinafter referred to as SMS) and a multimedia service (hereinafter referred to as MMS) may be received.

The MSC 340 according to an embodiment of the present invention sends a location request message to the FNPS 350 to attempt an incoming call to the called subscriber.

Prior art MSC transmits a location request message to the 2G HLR first to attempt an incoming call to the called subscriber when the called mobile number uses 2G, and receives a response to the location request message from the corresponding HLR. The MSC 340 according to an embodiment of the present invention does not first transmit a location request message to the 2G HLR, but immediately locates the FNPS 350 when the incoming mobile number is 2G. Send a request message to receive a response to the location request message from the FNPS 350.

In addition, when the called mobile number uses 3G, the MSC of the prior art transmits a location request message to the 3G HLR via the FNPS, but the MSC 340 according to the embodiment of the present invention requests the location to the FNPS 350. Sends a message and receives a response to the location request message from the FNPS 350.

That is, it receives a response to the location request message without passing through the 3G HLR.

In this case, the response to the location request message received from the FNPS 350 includes number porting information and routing digits, which will be described later.

For reference, the location request message according to the present invention uses a location request message (LOC) defined by a code division multiple access method (CDMA) when 2G is used, and a wideband code division multiple access method when 3G is used. Use Send Routing Information (SRI) as defined by (WCDMA).

Thereafter, the MSC 340 refers to the routing digits included in the received location request message, and acts as a gateway of the B carrier through the PCX Gateway System (PGS) 360 serving as a gateway exchange between the external network and the internal network. A call path is formed by sending a call setup request message to an MSC (not shown).

Upon receiving the response to the location request message from the FNPS 350, the MSC 340

Meanwhile, the FNPS 350 receives the location request message from the MSC 340 and transmits a response message including the numbering information and routing digits of the called party to the MSC 340.

Here, the subscriber's number porting information includes information indicating whether the called party's number has been ported, the mobile carrier that owns the called party's mobile phone number, and the mobile carrier currently using the called party's mobile phone number.

More specifically, 'calling party's number ported' refers to information indicating whether the called party is currently its own customer or whether the called party has become a third party's customer. "Carrier" means a mobile carrier whose incoming mobile phone number has been opened, and "mobile carrier currently using the mobile subscriber's mobile phone number" means a mobile carrier selected by the user for number transfer when the number has been transferred; .

In addition, routing digits included in the response message transmitted from the FNPS 350 to the MSC 340 are divided by each mobile carrier and by 2G and 3G.

If the called mobile phone number of the called subscriber uses 2G and the company has transferred the number to the third party, the routing digits indicate information indicating the mobile carrier and the corresponding mobile phone number using 3G. Information is included.

For example, the routing digits for a mobile phone number that is a current KTF customer and uses 2G could be '01690000000'.

In this case, '016' denotes a mobile communication provider KTF, and '90000000' denotes using 2G.

For reference, when the called subscriber is its customer, the FNPS 350 immediately transmits a location request message to the 2G HLR or 3G HLR according to whether the incoming mobile phone number is 2G and 3G, and then performs the incoming call processing procedure.

4 is a call processing procedure for a subscriber ported out when the incoming mobile phone number is 2G according to an embodiment of the present invention.

For convenience of description, it will be described with reference to the components of the system shown in FIG. 3, and the incoming mobile phone number mentioned in the present invention includes the A's station number by opening in the mobile communication company A, but is currently ported to the mobile communication company B. It is assumed that any caller attempts to make a call to the called mobile phone number to request a call connection and attempts to make an incoming call through the MSC of A mobile communication company.

First, when the call is attempted from the originating mobile communication terminal, the 2G MSC 410 transmits a location request message (LOC) to the FNPS 420 to attempt an incoming call to the subscriber of its own station (S401).

After S401, the FNPS 420 inquires about the subscriber information stored therein to determine whether the number is transferred to the called mobile phone number, and responds to the location request message including the number porting information and routing digits. LOC Ack) is transmitted to the 2G MSC 410 (S402).

After S402, the 2G MSC 420 receives a response message (LOC Ack) for the location request message from the FNPS 420, and routing digits included in the response message (SRI Ack) for the received location request message. The call path is formed by transmitting a call setup request message to the MSC (not shown) of the B mobile communication company through the PX (PCX Gateway System) 430 serving as a gateway exchange between the external network and the internal network with reference to (S404). ).

For reference, after S401, if the called subscriber is its customer, the FNPS 420 immediately transmits a location request message to the HLR (not shown) to perform the incoming call processing procedure.

5 is a call processing procedure for a subscriber ported out when the incoming mobile phone number is 3G according to an embodiment of the present invention.

For convenience of description, the components of the system illustrated in FIG. 3 will be described with reference to FIG.

First, when the call is attempted from the originating mobile communication terminal, the 3G MSC 510 transmits a location request message (SRI) to the FNPS 520 in order to attempt an incoming call to the subscriber of its station number (S501).

After S501, the FNPS 520 looks up the subscriber information stored by the FNPS 520 to determine whether or not the number is transferred to the called mobile phone number, and responds to the location request message including the number porting information and routing digits. SRI Ack) is transmitted to the 3G MSC 410 (S502).

After S502, the 3G MSC 520 receives the response message (SRI Ack) for the location request message from the FNPS 520 (S503), and the routing digit included in the response message (SRI Ack) for the received location request message. Call path is formed by sending a call setup request message to MSC (not shown) of B mobile carrier through PGS (PCX Gateway System) 530 which acts as a gateway exchange between the external network and the internal network with reference to (digits). (S504).

For reference, after S501, if the called subscriber is its customer, the FNPS 520 immediately transmits a location request message to the HLR (not shown) to perform the incoming call processing procedure.

Although embodiments of the present invention have been described above with reference to the accompanying drawings, those skilled in the art to which the present invention pertains may implement the present invention in other specific forms without changing the technical spirit or essential features thereof. You will understand that. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

1 is a conventional call processing procedure for a ported out subscriber when the incoming mobile phone number is 2G.

2 is a conventional call processing procedure for a ported out subscriber when the incoming mobile number is 3G.

3 is a diagram illustrating a configuration of a system for providing routing digits in a mobile communication system according to an embodiment of the present invention.

4 is a call processing procedure for a subscriber ported out when the incoming mobile phone number is 2G according to an embodiment of the present invention.

5 is a call processing procedure for a subscriber ported out when the incoming mobile phone number is 3G according to an embodiment of the present invention.

<Explanation of symbols on main parts of the drawings>

310: mobile communication terminal

320: base station (BTS)

330: base station controller (BSC)

340: mobile telephone switching center (MSC)

350: Number porting device (FNPS)

360: PGS

Claims (9)

A telephone exchange station (MSC) that sends a location request message to attempt an incoming call to a called subscriber; A number porting device (FNPS) for receiving the location request message, determining whether the called party number is transferred according to the location request message, and transmitting a response message including the number porting information and routing digits of the called party. ); And A PCX gateway system (PGS) serving as a gateway exchange between an external network and an internal network by referring to routing digits included in the response message, And the MSC provides the PCX Gateway System (PGS) with a response message sent from the Number Porting Device (FNPS). The method of claim 1, And the incoming mobile telephone number to which the incoming call is attempted uses any one of a 2G communication network and a 3G communication network. The method of claim 1, And the number porting device transmits a location request message for attempting an incoming call to its HLR when the called party is its own subscriber. Sending a location request message to attempt an incoming call to the called subscriber; Determining, according to the location request message, whether or not the called party has ported a number, and transmitting a response message including the number porting information and routing digits of the called party; And And acting as a gateway exchange between an external network and an internal network with reference to the routing digits included in the response message. The method of claim 4, wherein Wherein said routing digit comprises information indicative of the mobile carrier with which the called party was last numbered. The method of claim 4, wherein The number porting information includes at least one of whether the called party has a number ported, a mobile communication company owning the mobile phone number of the called party, and a mobile communication company currently using the mobile phone number of the called party. To provide routing digits in a. The method of claim 4, wherein And the location request message is a location request message (LOC) defined in a code division multiple access scheme (CDMA) when the destination mobile phone number uses a 2G communication network. The method of claim 4, wherein And wherein the location request message is Send Routing Information (SRI) as defined in Wideband Code Division Multiple Access (WCDMA) when the terminating mobile number uses a 3G communication network. The method of claim 4, wherein In the act of acting as a gateway exchange, the response message is: Providing a routing digit in a mobile communication system received from a telephone exchange (MSC) that transmitted the location request message.

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