KR100795585B1 - System for providing freenumber service in cdma network and method thereof - Google Patents

Abstract

A system for providing a free number service in a CDMA network and a method thereof are provided to provide the free number service having a telephone exchange number which is not different from a real number while not being restricted within a specific range. A system for providing a free number service in a CDMA network comprises a CDMA HLR(Home Location Register)(500), a CDMA SSP(Service Switching Point)(600) and a CDMA SCP(Service Control Point)(700). The CDMA HLR(500) determines whether a corresponding call receiver has subscribed for a free number service according to a position information request for processing a call and processes a response to the position information request and routing information for the free number service in case that the call receiver has subscribed for the free number service. The CDMA SSP(600) requests a free number service process for a call destination number for which a call process has been attempted in order to process a requested call based on the routing information, gets a real number mapped with the destination number as a response to the free number service process request, and performs the call process by using the real number. The CDMA SCP(700) extracts the destination number and the mapped real number at the free number service process request of the CDMA SSP(600) and transfers the real number and the destination number to the CDMA SSP(600) as a response to the request.

Description

System for providing virtual number service in CDMA network and method thereof {System for providing FreeNumber service in CDMA network and method

1 is a diagram illustrating a network configuration for providing a virtual number service in a CDMA network according to an embodiment of the present invention.

2 is a block diagram showing a detailed configuration of a home location register of a virtual number service providing system of a CDMA network according to an embodiment of the present invention.

3 is a block diagram illustrating a detailed configuration of a service controller of a virtual number service providing system of a CDMA network according to an embodiment of the present invention.

4 is a diagram illustrating a process of providing a virtual number service in a CDMA network according to an embodiment of the present invention using the configuration of FIG. 1.

5 is a diagram illustrating a call processing method for providing a virtual number service in a CDMA network according to an embodiment of the present invention.

The present invention relates to a virtual number service providing system and a method of a CDMA network.

FreeNumber service is a service that allows others to receive a call to a virtual number temporarily received by a wired or wireless telephone without a separate subscription procedure instead of their own phone number to protect their privacy.

According to this virtual number service, when a subscriber attempts to process a call by inputting a virtual number previously assigned, the mobile communication switch (MSC) performs a routing to an intelligent network that processes the virtual number service by confirming that it is a virtual number through a station number. do.

Therefore, in the conventional virtual number service, since the prefix that can be used as the virtual number is limited, the called party could determine whether the virtual number is the virtual number. That is, since the virtual number starts with a specific station number, for example, 9 **, the called party knows that the caller has requested a call to the virtual number.

This causes the problem that the original purpose of the virtual number service is diluted since the purpose of the virtual number is not to disclose the subscriber's telephone number, since it is possible to confirm that the station number is not the subscriber's telephone number.

Accordingly, the technical problem to be achieved by the present invention is to provide a virtual number service system and a call processing method therefor without limitation on the station number.

Virtual number service providing system according to a feature of the present invention to achieve the above-described problem,
A system for providing a virtual number (FreeNumber) service in a CDMA network. The system determines whether a called party joins a virtual number service according to a location information request for call processing, and if the called party is a virtual number service subscriber, A CDMA home location register (HLR) for processing a response to the location information request, including routing information for the location information; Request a virtual number service for the called number attempted to process the call in order to perform the requested call processing with reference to the routing information, and a real number mapped to the called number in response to the virtual number service processing request. A CDMA service exchange (SSP) for acquiring C) and performing call processing using the real number; And a CDMA service controller for extracting a real number mapped to the called number according to a virtual number service processing request from the CDMA service exchanger and delivering the real number and the called number in response to the virtual number service processing request (SCP). ).

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Virtual number service providing method according to a feature of the present invention,

A method for providing a virtual number service in a CDMA network, the method comprising: (a) a CDMA service exchange receiving a call processing request from a first CDMA home location register managing a called number attempted to process a call, and according to the call processing request, a CDMA service; Requesting a controller to process a virtual number service for the called number; (b) receiving a response from the CDMA service controller to the virtual number service processing request including a real number mapped to the called number; And (c) performing call processing with the called party's mobile communication switch using the real number.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

In addition, when a part is said to "include" a certain component, this means that it may further include other components, except to exclude other components unless otherwise stated.

In addition, the term module described herein refers to a unit for processing a specific function or operation, which may be implemented in hardware or software, or a combination of hardware and software.

Now, a virtual number service providing system and method thereof for a CDMA network according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a diagram illustrating a network configuration for providing a virtual number service in a CDMA network according to an embodiment of the present invention.

According to FIG. 1, a network configuration for providing a virtual number (FreeNumber) service in a CDMA network includes a user terminal 100, a CDMA wireless network unit 200, and a virtual number service providing system 300. At this time, the function of each configuration of the network is as follows.

The user terminal 100 is connected to the CDMA wireless network unit 200 to receive a mobile communication service through the CDMA wireless network.

The CDMA wireless network unit 200 between the base transceiver station (BTS) 210 and the BTS 210 and the mobile communication exchange (MSC) 400 that performs baseband signal processing, wired and wireless conversion, and transmission and reception of wireless signals. It is located in the BSC (Base Station Controller) 220 that is responsible for base station management and control.

The virtual number service providing system 300 performs a call processing based on a virtual number assigned to a station number which is not distinguished from a real number, which is not limited to a real number, from the user terminal 100.

This includes a mobile switching center (CDMA MSC) 400, a home location register (CDMA HLR) 500, a service switching point (CDMA SSP) 600, and a service controller (CDMA SCP). , A service control point (700) and a wireless information system environment (WISE) 800.

When the call processing is attempted from the user terminal 100, the mobile communication exchange (CDMA MSC) 400 acquires the called party information according to the presence or absence of the virtual number service subscription and performs general call processing or routing to the intelligent network accordingly. That is, when the called party is not the virtual number service subscriber, the call processing is performed with the mobile communication exchange (CDMA MSC) 400 that manages the called number attempted to process the call. However, when the called party is a virtual number service subscriber, the call switch is requested to the CDMA SSP 600 using routing information on the virtual number service.

The home location register (CDMA HLR) 500 determines whether the called party subscribes to the virtual number service according to the location information request for call processing, and includes routing information on the virtual number service when the called party is the subscriber of the virtual number service. Process the response to the location information request. A more specific configuration thereof will be described with reference to FIG. 2.

When the CDMA SSP 600 requests the call processing by referring to the routing information received by the mobile communication exchange (CDMA MSC) 400 from the home location register (DCMA HLR) 500, the CDMA service controller Request 700 to process the virtual number service for the called number attempted to process the call. In addition, a real number mapped to the called number is obtained in response to the virtual number service processing request, and call processing is performed using the real number.

The service controller (CDMA SCP) 700 extracts the real number mapped to the called number according to the virtual number service processing request from the CDMA SSP 600, and extracts the real number mapped in response to the virtual number service processing request. The number and called number are forwarded to the service switcher (CDMA SSP) 600. A more specific configuration thereof will be described with reference to FIG. 3.

The wireless information management system 800 performs subscription and registration, change, deletion, and inquiry of the virtual number service. Then, the registered, changed, and deleted information is transmitted to the home end register (CDMA HLR) 500 and the service controller (CDMA SCP) 700, which are the last stages.

2 is a block diagram showing a detailed configuration of a home location register (CDMA HLR) of a virtual number service providing system of a CDMA network according to an embodiment of the present invention.

According to FIG. 2, a home location register (CDMA HLR) 500 includes a virtual number service manager 520 and a call processor 540.

The virtual number service manager 520 manages the virtual number service information and determines whether the called party attempts to call the virtual number service.

In more detail, this includes the virtual number service DB 522 and the verification module 524.

The virtual number service DB 522 stores registration / change / inquiry related information for the virtual number service subscriber. In addition, the same virtual number and real number mapping table information as the service controller (CDMA SCP) 700 that processes the virtual number service may be stored.

The verification module 524 checks whether the called number attempted to process the call is a number registered in the virtual number service with reference to the virtual number service DB 522 to determine whether the called party subscribes to the virtual number service.

The call processing unit 540 processes the response to the location information request according to whether the called party is a virtual number service subscriber in association with the virtual number service management unit 520. That is, when the called party is the subscriber of the virtual number service, the receiver processes the response to the location information request including routing information for the virtual number service of the called number attempted to process the call. In other words, a routing number is added before the called party number.

Or, if the called party is not a virtual number service subscriber, it processes the response to the location information request including the location information for performing the call processing with the called number attempted to process the call.

3 is a block diagram showing a detailed configuration of a service controller (CDMA SCP) of a virtual number service providing system of a CDMA network according to an embodiment of the present invention.

According to FIG. 3, the service controller (CDMA SCP) 700 includes a mapping table DB 720, a retrieval unit 740, and a processing unit 760.

The mapping table DB 720 stores the virtual number information mapped to the real number of the virtual number service subscriber.

The search unit 740 searches the mapping table DB 620 according to the virtual number service processing request of the CDMA SSP 600 to extract the real number mapped to the called number.

The processor 760 transmits a response to the virtual number service processing request to the service switcher (CDMA SCP) 600 including the extracted real number and called number.

Now, a process of providing a virtual number service through interworking between the components based on the above-described configuration will be described.

4 is a diagram illustrating a process of providing a virtual number service in a CDMA network according to an embodiment of the present invention using the configuration of FIG. 1.

According to FIG. 4, the calling user terminal (MSo) 120 attempts to process a call using a virtual number to the calling exchange (CDMA MSCo) 420 (S101). That is, it corresponds to call processing when the called number is a virtual number.

The calling side exchange (CDMA MSCo) 420, which is requested to process the call, requests the called party's location information for the call processing from the first home location register (CDMA HLR) 500 'that manages the called number attempted to process the call. (S103).

The first home location register (CDMA HLR) 500 'checks whether the called party subscribes to the virtual number service using the called number attempted to process a call, and if the subscriber is a virtual number service subscriber, allocates a routing number before the called number to the calling party. The switch (CDMA MSCo) 420 responds to the location information request (S105).

The calling side exchange (CDMA MSCo) 420 requests a call processing to the service switching center (CDMA SSP) 600 using the received routing number (S107).

The service exchange (CDMA SSP) 600 processes the virtual number service for the called number attempted to process a call to the service controller (CDMA SCP) 700 to perform a call processing request of the calling side exchange (CDMA MSCo) 420. Request (S109).

The service controller (CDMA SCP) 700 checks whether the called number is registered according to the virtual number service processing request in step S109, searches for and extracts the mapped real number if registered, and extracts the extracted real number. And a response to the virtual number service processing request including the called number to the service switcher (CDMA SSP) 600 (S111).

Then, the service switcher (CDMA SSP) 600 requests the called party's location information to the second home location register (CDMA HLR) 500 ″ which manages the received real number (S113).

The second home location register (CDMA HLR) 500 ″ requests location confirmation from a corresponding called side exchange (CDMA MSCT) 440 to receive location information (S115 and S117).

The second home location register (CDMA HLR) 500 ″ transmits the received location information to the service switcher (CDMA SSP) 600 (S119).

The service exchanger (CDMA SSP) 600 uses the location information obtained through the step S119 to the called party exchange (CDMA MSCT) 440, the called party attempted to process the call to the called party terminal and the real mapped thereto. Call processing is requested to provide the number as the called number (S119).

The called side exchange (CDMA MSCT) 440 is a called number to a called user terminal (MST) 140 assigned a real number, along with a called number which is a virtual number that the calling terminal MSo 120 has attempted to process. The real number acquired by the service controller (CDMA SCP) 700 is transferred (S121).

Then, the called terminal (MST) 140 displays both the received virtual number and the real number as the called number, so that the called party can confirm that the call processing by the virtual number was performed.

This describes a series of procedures when someone attempts to process a call using the virtual number set by the called party.

FIG. 5 is a diagram illustrating a call processing method for providing a virtual number service in a CDMA network according to an embodiment of the present invention, and illustrates a message exchange process for call processing based on the contents described in FIG. 4.

According to Fig. 5, when call processing is attempted, the calling party exchange (CDMA MSCo) 420 provides location information for call processing to a first home location register (CDMA HLR) 500 'that manages the called party's called number. A 'LOR (Location Request)' message requesting is transmitted (S201).

The first home location register (CDMA HLR) 500 'checks the called party's virtual number service setting state (S203).

The first home location register (CDMA HLR) 500 'adds a routing number for the virtual number service before the called number when the called party is the virtual number service subscriber as a result of the check in step S203. The responding 'LOR Return' message is transmitted to the calling exchange (CDMA MSCo) 420 (S205). In this case, the 'LOR Return' message includes the 'FNST_RN + FN' parameter.

The calling side exchange (CDMA MSCo) 420 processes the call using the routing number included in the 'FNST_RN + FN' parameter to the CDMA SSP 600 with the called number as 'FNST_RN + FN'. It sends a 'IAM: Initial Address Message' requesting (S207).

The service exchange (CDMA SSP) 600 attaches to the called number attempted to process the call to the service controller (CDMA SCP) 700 according to the called number (RN + TA) of the message IAM received through the step S207. A message (first ANAINFO) for requesting the processing of the virtual number service is transmitted (S209).

The service controller (CDMA SCP) 700 searches the mapping table DB according to 'RN' included in the received message (first ANAINFO), checks whether the called number is a virtual number, and extracts the real number mapped thereto. S211).

The service controller (CDMA SCP) 700 responds to the request for processing the virtual number service of the called number by allocating the searched real number and the virtual number if the called number attempted to process the call result of the search in step S211 is a virtual number. A message (second ANAINFO) is transmitted to the service exchange (CDMA SSP) 600 (S213).

The service exchanger (CDMA SSP) 600 transmits a 'LOR' message requesting location information to the second home location register (CDMA HLR) 500 ″ managing the real number received in step S213 ( S215).

The second home location register (CDMA HLR) 500 ″ transmits a “RTR” message requesting location information to the called side exchange (CDMA MSCT) 440 (S217).

The called side exchange (CDMA MSCT) 440 transmits a 'rtr' message including the requested location information, that is, the exchange number, to the second home location register (CDMA HLR) 500 '(S219).

The second home location register (CDMA HLR) 500 ″ transmits a 'LOR Return' message including the location information received in step S219, that is, the exchange number, to the service switcher (CDMA SSP) 600 (S221). .

The service exchanger (CDMA SSP) 600 transmits a message (IAM) for requesting the call processing to the corresponding destination exchange (CDMA MSCT) 440 using the location information received through the step S221 (S223). ). At this time, the message IAM is set to 'called number = virtual number and real number'.

Accordingly, the receiving side exchange (CDMA MSCT) 440, which has received the message IAM through step S221, performs the incoming call processing with the received real number, and the real number together with the virtual number attempted to process the call. It provides to the called terminal (MST) 140. Then, the called terminal (MST) 140 simultaneously displays the real number and the virtual number as the called number.

According to this description, the calling terminal (MSo) 120 attempts to process the call with the called number, which is a virtual number, and the service exchange (CDMA SSP) 600 and the called side exchange (CDMA MSCT) 440 is the same. Call processing is performed using the real numbers acquired through steps S209, S211, and S213. Therefore, the station number of the virtual number is not limited to within a specific range and may have a station number that is the same as the real number.

In addition, the called party terminal (MST) 140 can confirm the corresponding called party number entered by the caller by displaying the virtual number that the calling terminal (MSo) 120 attempts to process the call with the real number.

The embodiments of the present invention described above are not implemented only through the apparatus and the method, but may be implemented through a program for realizing a function corresponding to the configuration of the embodiment of the present invention or a recording medium on which the program is recorded. Implementation may be easily implemented by those skilled in the art from the description of the above-described embodiments.

The scope of the present invention is not limited to the above-described embodiments, but various modifications and improvements of those skilled in the art using the basic concept of the present invention as defined in the following claims are also within the scope of the present invention.

 Thus, according to the embodiment of the present invention, by providing a virtual number without limitation to the station number can provide a service utilizing the purpose of the original virtual number service.

Claims (8)

A system that provides a virtual number (FreeNumber) service in a CDMA network, Determine whether the called party subscribes to the virtual number service according to the location information request for call processing, and process the response to the location information request including routing information about the virtual number service when the called party is a virtual number service subscriber. A CDMA home location register (HLR); Request a virtual number service for the called number attempted to process the call in order to perform the requested call processing with reference to the routing information, and a real number mapped to the called number in response to the virtual number service processing request. A CDMA service exchange (SSP) for acquiring C) and performing call processing using the real number; And A CDMA service controller (SCP) for extracting a real number mapped to the called number according to a virtual number service processing request from the CDMA service exchanger and delivering the real number and the called number in response to the virtual number service processing request. System comprising a. The method of claim 1, The CDMA service controller, A mapping table DB for storing virtual number information mapped to a real number of the virtual number service subscriber; A search unit for searching the mapping table DB according to the virtual number service processing request and extracting a real number mapped to the called number; And A processing unit for processing a response to the virtual number service processing request including the extracted real number and the called number; System comprising a. The method according to claim 1 or 2, The CDMA home location register is A virtual number service manager for managing virtual number service information and determining whether the called party has subscribed to the virtual number service; And When the called party is a virtual number service subscriber in cooperation with the virtual number service management unit, processes the response to the location information request including the routing information, and attempts to process the call when the called party is not a virtual number service subscriber. A call processing unit for processing a response to the request for location information, including location information for performing call processing with the called party number; System comprising a. The method of claim 3, The virtual number service management unit, A virtual number service DB for storing registration, change and inquiry related information about the virtual number service subscriber; And A confirmation module for checking whether the called number attempted to process the call is a number registered in the virtual number service by referring to the virtual number service DB and determining whether the called party subscribes to the virtual number service according to the confirmed registration; System comprising. A method for providing a virtual number service in a CDMA network, (a) the CDMA service exchange receives a call processing request from a first CDMA home location register that manages a called number attempted to process a call, and processes a virtual number service for the called number to a CDMA service controller according to the call processing request; Requesting; (b) receiving a response from the CDMA service controller to the virtual number service processing request including a real number mapped to the called number; And (c) performing call processing with the called party's mobile communication switch using the real number; How to include. The method of claim 5, In step (a), (Iii) receiving a call processing request using a routing number obtained by receiving a response to the request for location information for call processing from a CDMA originating mobile communication exchange; And (Ii) requesting the CDMA service controller to process the virtual number service for the called number included in the call processing request; How to include. The method of claim 6, In step (b), And receiving, by a CDMA service controller, a response to the request for processing the virtual number service including the real number and the called number found according to whether the called number is a virtual number. The method according to any one of claims 5 to 7, Step (c) is, (Iii) requesting and receiving location information of the called party's mobile communication exchange from a second home location register managing the real number; And (Ii) the called party's attempted call processing by the called party's mobile communication exchange to the called party's mobile communication exchange identified using the location information received in step (iii), where the called number is the virtual number; And requesting a call processing including a called number attempted to process the call and a real number mapped to the called call attempted number to provide the called party terminal with a real number mapped to the called number attempted to process the call. How to include.

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