KR101108687B1 - Apparatus and method for processing number movement - Google Patents

Abstract

A number transfer call processing method and apparatus are disclosed. The switch according to an embodiment of the present invention includes a communication unit for receiving an initial address message from another network switch; an analysis unit for extracting incoming route information and prefix information from the initial address message; And a control unit controlling the communication unit to perform one of general call processing, call processing according to ACQ, and call processing based on QOR according to the incoming route information and the prefix information. The present invention has the effect of providing a number transfer call processing method and apparatus.

Prefix, Call Processing, Exchange, Home Location Register

Description

Apparatus and method for processing number movement}

The present invention relates to a method and apparatus for number call processing, and more particularly, to a method and apparatus for number mobile call processing between 2G-3G.

The mobile communication network only accepts its own network code, but as the number portability system is implemented, the mobile communication network is required to accept not only the network code of its own network but also the network code of another network.

Number portablitity refers to enabling a subscriber to change a service provider, service location, and type of service without changing the telephone number. During number portability, a service provider number portability (Service Provider Number Portability) method is provided so that a subscriber can continue to use a telephone number previously assigned to a subscriber even if the subscriber cancels the subscription to the carrier A and newly subscribes to the carrier B. Provider Number Portablility.

The number transfer service allows users to freely select a service provider by comparing service quality and rates without changing existing phone numbers, and allows the late service providers and new service providers who enter new telecommunication businesses to compete fairly. It is being promoted in each country at the national level for the purpose.

Number porting service is mainly provided by ACQ (All Call Query) and QOR (Query On Release). In the ACQ scheme, a specific user subscribes to a service provided by a first telecommunications provider (a conventional telecommunications provider) and receives a subscriber number (MDN). Thereafter, the specific user cancels the subscription contract with the first communication service provider and subscribes to a service provided by the second communication service provider (current communication service provider) and receives a new subscriber number. In the above situation, when the calling terminal transmits an outgoing call to the exchange using the number used in the service of the first communication service provider (hereinafter referred to as 'traditional telephone number'), the exchange has been routed to another telephone number. Query the number transfer database. As a result of the query, when the number change information indicating that the conventional phone number has been changed to the current phone number of the network is received, the calling exchange exchanges the number change information to the called exchange and connects the call of the calling terminal and the called terminal.

In the QOR method, the exchange does not query the number transfer database whether or not the destination terminal has moved a number whenever all calls are required. The exchange first requests a call to the exchange of the original subscribing network corresponding to the conventional telephone number of the called terminal. If the receiving terminal receives a message indicating that the terminal does not exist, the exchange performs a process of asking the number transfer database whether the receiving terminal has a number. The rest of the process is the same as the ACQ method.

Currently, the call processing using the ACQ method and the QOR method is not clearly defined in the exchange, and there is a problem that the call processing cannot be supported in various network structures.

The present invention provides a number transfer call processing method and apparatus.

Technical problems other than the present invention will be easily understood through the following description.

According to an aspect of the invention, the communication unit for receiving the initial address message from the other network switch; An analysis unit which extracts incoming route information and prefix information from the initial address message; And a control unit for controlling the communication unit to perform any one of general call processing, call processing according to ACQ, and call processing according to QOR according to the incoming route information and the prefix information.

According to another aspect of the present invention, there is provided a method, comprising receiving an initial address message from another network exchange; Extracting incoming route information and prefix information from the initial address message; And performing any one of general call processing, call processing according to ACQ, and call processing based on QOR according to the incoming route information and the prefix information.

The present invention has the effect of providing a number transfer call processing method and apparatus.

As the invention allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description. However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In the present application, "comprises" is intended to indicate that there is a feature, number, step, or a combination thereof described on the specification, but the presence or possibility of the presence or addition of one or more other features or numbers, steps or a combination thereof. It should be understood that do not exclude in advance.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art and shall not be construed in ideal or excessively formal meanings unless expressly defined in this application. Do not.

In the following description of the present invention with reference to the accompanying drawings, the same components are denoted by the same reference numerals regardless of the reference numerals, and redundant explanations thereof will be omitted. In the following description of the present invention, if it is determined that the detailed description of the related known technology may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

1 is a diagram showing each component of a mobile communication system according to an embodiment of the present invention. Other additional components are required to configure an actual mobile communication system, but will be omitted for clarity. Referring to FIG. 1, a mobile communication system according to an embodiment of the present invention includes a magnetic network switch 110, a home location register 120, a number mobile database 130, and another network switch 140.

The mobile switching center (MSC: Mobile Switiching Center) controls voice calls and various additional services, exchanges information with a home location register 130 that stores subscriber information in order to perform an exchange function, and establishes a call path. It provides the connection function between the equipment and external network. The self-switching network 110 makes a request for location information by directly connecting to the home location register 120 according to the type of the prefix of the called number or the initial address message (IAM: Initial Address Massage) which is a call request signal to another network switch. ) To request location information. The magnetic network switch 110 does not route all calls required from the calling terminal of the calling subscriber to the corresponding telephone number, but queries the number porting database 130 before routing to obtain information on whether the number has been moved and the number movement path information. You can connect calls.

Home Location Register (HLR) 120 is a database located in a user home system that stores a master copy of a user service profile. For example, the user service profile includes supplementary service information such as service information allowed for the user, roaming area prohibited, call transmission number and call transmission status. The user service profile is created when a new user joins the system and remains stored while subscribed.

The number transfer database (NPS) 130 is a database that stores subscriber number movement information. For example, the number movement database stores information on whether a number has been moved and a number movement path for a specific user.

The network switch 110 according to an embodiment of the present invention determines the call processing method according to whether the number transfer information of the received initial address message includes the route information, the route information, and the called prefix. The call processing method is determined by any one of call processing according to local or toll prefix, call processing according to ACQ, and call processing based on QOR. At this time, the call processing method according to the local or toll prefix (hereinafter referred to as 'general call processing') is a method of transmitting a call connection request signal using a general local or toll prefix, and the destination terminal location information request or initial address When the response signal corresponding to the message is an incomplete signal, the ISUP REL (Cause = Ported) message is transmitted to the other network exchanger 140 which has transmitted the relay call to the own network exchanger 110.

Hereinafter, a number shifting process using the ACQ method using the above-described component will be described.

2 is a flowchart illustrating a call processing process of an exchange using an ACQ scheme according to an embodiment of the present invention.

Referring to FIG. 2, the magnetic network switch 110 transmits a NP REQUEST signal to the number transfer database 130 according to the incoming address of the initial address message. The own network switch 110 receives a response from the number transfer database and determines whether the called terminal belongs to the own network or the other network. At this time, the own network switch 110 receives the recipient network number of the called terminal from the number transfer database. Therefore, the magnetic network switch 110 may determine whether the called terminal belongs to the own network or the other network according to whether the network number of the own network and the received network number are the same. If the network is owned, the magnetic network switch 110 requests the position information of the called terminal to the home network location register 120. If the other network, the self-switching network 110 sends an initial address message to the other network exchange.

So far, the call processing method of the magnetic network switch 110 using the ACQ method has been described. Hereinafter, a call processing method of the network switch 110 using the QOR method among the call processing methods in the case of not including the number movement information will be described.

3 is a diagram illustrating a call processing process of an exchange using a QOR method according to an embodiment of the present invention.

In the QOR scheme, the self-switching network 110 performs a process of first requesting a call to an exchange of a first subscribing network corresponding to a conventional telephone number before querying the number-transport information to the number-transport database. Therefore, call processing differs depending on whether the initial subscription network is own network. Hereinafter, the QOR method will be described on the assumption that the called number has moved.

Referring to FIG. 3, when the hand signal includes a local prefix, the self network switch 110 transmits the called terminal location request message LOC_REQ to the home location register 120. The home location register 120 transmits a response message corresponding to the called terminal location request message to the own network switch 110. At this time, because the called number is in the state of moving the number, the home location register 120 transmits a response to the network switch 110 that the called number has joined the other network. Subsequently, the network switch 110 transmits a number port information request signal for the called number to the number port number database 130. The number movement database 130 transmits the number movement information on the called party number to the own network switch 110. Subsequently, the magnetic network switch 110 transmits an initial address message to the other network switch according to the number movement information. At this time, the number porting information received from the number porting database 130 is a network number of another network. In addition, if the called number did not move the number, the first time when the destination terminal location request message to the home location register 120 will be able to find the location of the called terminal.

When the hand signal includes a toll prefix, the self network switch 110 transmits an initial address message to the other network switch. Subsequently, the own network switch 110 receives a response signal from the other network switch 140 indicating that the called number is subscribed to the other network (other network other than the communication network to which the other network belongs). Subsequently, the network switch 110 transmits a number port information request signal for the called number to the number port number database 130. The number movement database 130 transmits the number movement information on the called party number to the own network switch 110. When the network switch 110 checks the network number of the network in the number movement information, the network switch 110 transmits a signal for requesting the terminal location information to the home location register 120. When the network switch 110 confirms the other network number in the number movement information, it transmits an initial address message to the other network switch 140. So far, the call processing process of the exchange using the QOR method has been described. Hereinafter, an exchanger according to an embodiment of the present invention will be described in detail.

4 is a diagram illustrating each functional unit of a magnetic network switch according to an embodiment of the present invention.

Referring to FIG. 4, the magnetic network switch 110 includes a communication unit 111, an analysis unit 112, and a control unit 113.

The communication unit 111 is connected to an external device through a mobile communication network to transmit and receive data. The communication unit 111 may communicate with other network switch as well as a device configuring the own network.

The analysis unit 112 analyzes the incoming message received through the communication unit 111 and extracts necessary information. For example, the analyzer 112 receives an initial address message from the other network switch 140 through the communication unit 111, and extracts incoming route information and prefix information. The analyzer 112 extracts a first set value (QOR flag) from the incoming route information. In addition, the analyzer 112 extracts the movement setting information and the second setting value (ACQOR flag) from the prefix. The analyzing unit 112 transmits the extracted first setting value, the second setting value, and the movement setting information to the control unit 113. In this case, the first setting value, the second setting value, and the movement setting information may be 1-bit flag information.

The control unit 113 controls the communication unit 111 to perform call processing according to any one of general call processing, ACQ, and QOR according to the first setting value and the movement setting information. That is, the control unit 113 determines whether to transmit the number movement information request signal according to the first setting value and the movement setting information, and determines the transmission order of the number movement information request signal and the call connection request signal. For example, if the first setting value is Yes, the controller 113 controls the communication unit 111 to perform call processing according to ACQ or QOR according to the movement setting information. That is, the controller 113 controls the communication unit 111 to perform call processing according to the ACQ when the movement setting information is a flag corresponding to ACQ, and to perform call processing according to the QOR when the movement setting information is a flag corresponding to the QOR. do. The control unit 113 also controls the communication unit 111 to perform general call processing when the first set value is No and the number movement information is QOR. At this time, when receiving the incomplete signal, the control unit 113 controls the communication unit 111 to transmit the incomplete signal to the other network switch 140.

When the first setting value is No and the movement setting information is ACQ, the control unit 113 controls the communication unit 111 to perform general call processing or call processing according to ACQ according to the second setting value. For example, when the first setting value is No, the movement setting information is ACQ, and the second setting value is ACQ, the control unit 113 controls the communication unit 111 to perform call processing according to the ACQ. In addition, when the first setting value is No, the movement setting information is ACQ, and the second setting value is QOR, the control unit 113 controls the communication unit 111 to perform general call processing. At this time, when receiving the incomplete signal, the control unit 113 controls the communication unit 111 to transmit the incomplete signal to the other network switch 140. In addition, although the above-described first setting value is described as Yes or No, the second setting value and the movement setting information are ACQ or QOR, in actual implementation, it may be 1-bit binary flag information, and the controller 113 may flag The meaning of the information can be set in advance.

So far, each functional unit of the magnetic network switch 110 according to an embodiment of the present invention has been described. Hereinafter, a call processing method of an exchange according to an embodiment of the present invention will be described with reference to FIG. 6.

5 is a flowchart illustrating a call processing process of an exchange according to an embodiment of the present invention. Hereinafter, the call processing process is performed through each functional unit of the magnetic network switch 110, but for the sake of clarity, the subject of each step will be collectively referred to as the magnetic network switch 110. In addition, since general call processing, call processing according to ACQ, and call processing based on QOR have been described above with reference to FIGS. 2 to 4, a detailed description thereof will be omitted.

Referring to FIG. 5, in operation 510, the SG 110 receives and analyzes an incoming initial address message. For example, the magnetic network switch 110 extracts the first set value, the second set value and the number movement information from the incoming initial address message.

In operation 520, the magnetic network switch 110 determines whether the first set value is 'Yes'.

As a result of the determination in step 520, if the first set value is 'Yes', the network switch 110 determines whether the number movement information is QOR in step 530.

If it is determined in step 530 that the number movement information is QOR, in step 540, the network switch 110 performs call processing according to the QOR.

If it is determined in step 530 that the number movement information is ACQ, in step 550, the self-switching network switch 110 performs call processing according to the ACQ.

As a result of the determination in step 520, if the first set value is 'Yes', in step 560, the network switch 110 determines whether the number movement information is QOR.

If it is determined in step 560 that the number movement information is QOR, in step 570, the network switch 110 performs the general call processing.

As a result of the determination in step 560, if the number movement information is ACQ, in step 580, the network switch 110 determines whether the second set value is QOR.

If it is determined in step 580 that the second set value is QOR, in step 570, the network switch 110 performs the general call processing.

If it is determined in step 580 that the second set value is ACQ, in step 550, the self-switching network switch 110 performs call processing according to the ACQ.

1 is a view showing each component of a mobile communication system according to an embodiment of the present invention.

2 is a flowchart illustrating a call processing process of an exchange using an ACQ scheme according to an embodiment of the present invention.

3 is a diagram illustrating a call processing process of an exchange using a QOR scheme according to an embodiment of the present invention.

4 is a view showing each functional unit of the magnetic network switch according to an embodiment of the present invention.

5 is a flowchart illustrating a call processing process of an exchange according to an embodiment of the present invention.

Claims (9)

A communication unit for receiving an initial address message from another network switch; An analysis unit which extracts incoming route information and prefix information from the initial address message; And It is determined whether to transmit the number movement information request signal according to the first setting value according to the incoming route route information, the second setting value according to the prefix information, and the movement setting information, and to transmit the number movement information request signal. If included, the control unit for setting the transmission order of the number movement information request signal and the call connection request signal, The communication unit transmits one or more of the number portability information request signal and the call connection request signal according to the transmission order, And the call connection request signal is an initial address message or a destination terminal location information request signal. The method according to claim 1, When the first setting value is 'yes' and the movement setting information is 'QOR', the controller sets a transmission order for transmitting the number movement information request signal after transmitting the call connection request signal, When the first setting value is 'yes' and the movement setting information is 'ACQ', the controller sets a transmission order of transmitting the call connection request signal after transmitting the number movement information request signal. Exchanger. The method according to claim 1, The first setting value is 'no' and the movement setting information is 'QOR' or the first setting value is 'no', the movement setting information is 'ACQ' and the second setting value is 'QOR' In this case, the control unit sets a transmission order for transmitting the call connection request signal without transmitting the number movement information request signal, If the first setting value is 'no', the movement setting information is 'ACQ', and the second setting value is 'ACQ', the controller transmits the call connection request signal after transmitting the number movement information request signal. An exchange characterized by setting the transmission order to transmit. The method according to claim 1, The control unit controls the communication unit to transmit the incomplete signal to the other network switch when receiving the incomplete signal as a response signal to the call connection request signal when it is determined that the number port information request signal is not transmitted. Exchanger characterized. Receiving an initial address message from another network exchange; Extracting incoming route information and prefix information from the initial address message; And It is determined whether to transmit the number movement information request signal according to the first setting value according to the incoming route route information, the second setting value according to the prefix information, and the movement setting information, and to transmit the number movement information request signal. If it is, the method comprising the step of setting the transmission order of the number port information request signal and the call connection request signal, And the call connection request signal is an initial address message or a called terminal location information request signal. 6. The method of claim 5, The step of setting the transmission order of the number port information request signal and the call connection request signal is Setting a transmission order of transmitting the number transfer information request signal after transmitting the call connection request signal when the first setting value is 'yes' and the movement setting information is 'QOR'; And Setting a transmission order of transmitting the call connection request signal after transmitting the number movement information request signal when the first setting value is 'yes' and the mobility setting information is 'ACQ'. Call processing method comprising a. The method according to claim 6, The step of setting the transmission order of the number port information request signal and the call connection request signal is When the first setting value is 'no' and the movement setting information is 'QOR' or the first setting value is 'no' and the movement setting information is 'ACQ', and the second setting value is 'QOR' In case of, set the transmission order of transmitting the call connection request signal without transmitting the number port information request signal; And When the first set value is 'no', the mobility setting information is 'ACQ', and the second set value is 'ACQ', a transmission for transmitting the call connection request signal after transmitting the number port information request signal Steps to Set the Order Call processing method further comprising. 6. The method of claim 5, And transmitting one or more of the number transfer information request signal and the call connection request signal according to whether the number transfer information request signal is transmitted and the transmission order. The method of claim 8, Transmitting at least one of the number transfer information request signal and the call connection request signal, when it is determined not to transmit the number transfer information request signal, receives an incomplete signal as a response signal to the call connection request signal. And transmitting the incomplete signal to the other network switch.

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