KR20080054081A - Emergency call provision system and method in broadband convergence network - Google Patents

Abstract

The present invention relates to an emergency call providing system and a method for providing an emergency call service in a broadband integrated network which increases convenience of an emergency call service and improves an additional service function associated therewith. The octave switch-IMS network (200) requests the emergency call service regardless of whether the caller is registered without checking the call to the S-CSCF when the emergency call service is requested. )and; When the octave switch-IMS network 200 requests an emergency call service, it finds the current location information of a specific user terminal requesting an emergency call service, and sends the caller location information that the caller finds to deliver to the desired emergency service provider. An emergency service application server 300 for transmitting to the octave switch-IMS network 200; It manages the location information of all the user terminal existing in its area, when the emergency service application server 300 requests the current location information for a specific user, requests the current location information to a specific user terminal 100 The location information management system 400 converts the result into a format defined by an application service and delivers the result to the emergency service application server 300.

Description

Emergency Call Providing System in Broadband Integrated Network and its Method {System and Method for Serving Emergency Call in BcN}

1 is a block diagram of an emergency call providing system in a broadband integrated network according to the present invention.

Figure 2 is a control flow diagram for explaining the emergency call operation of the emergency call providing system in a broadband integrated network according to the present invention.

3 is a control flowchart illustrating the operation of an additional service in an emergency call providing system in a broadband integrated network according to the present invention;

<Description of Symbols for Main Parts of Drawings>

100: user terminal 200: octave switch-IMS network

210: P-CSCF 220: S-CSCF

300: emergency service application server 400: location information management system

500: service support server 600: subscriber information management system

700: Emergency Service Provider

The present invention relates to an emergency call providing system and method thereof in a broadband integrated network, and more particularly, to an emergency call providing system in a broadband integrated network, which improves convenience of an emergency call service and improves an additional service function related thereto. It's about how.

Communication technology can be classified into wireless communication based on mobile communication network and wired communication based on existing wired communication network.

Wireless communication is encroaching on the wired communication market due to the rapid development of wireless communication technology, and extremely weakening the profitability of the wired communication market.

Wired communications are looking for a turnaround with high-speed Internet and Broadband convergence networks (BcNs).

These wired communication services can be broadly classified into telephone-based services and IP network-based services.

However, the telephone-based voice call service is rapidly being eroded by the wireless communication service, and the IP network-based service is not replacing the telephone network-based service due to some technical problems.

In this wired communication market, the integration of telephone-based services and IP network-based services, and the integration of various service delivery systems necessary to provide services, reduce the necessary costs such as operation and investment costs, and provide a variety of services on a single service platform. The research on BcN that can be provided by has been in progress and the situation is on the verge of commercialization.

Although various services have been developed and proposed in BcN, they have not yet provided commercial services. In particular, emergency call services such as 112, 114, and 119 will be provided through interworking with the existing wired network (PSTN).

As described above, in the case of using the emergency call service using BcN, the following problems remain and a technique for solving the problem has not been proposed yet.

First, the caller cannot know the caller's location in the urgent situation where the caller cannot make a call, and no technology has been proposed to automatically identify the caller's location in emergency service providers such as telephone stations, police stations, and fire departments.

For example, in a conventional wired telecommunication network (PSTN), when a caller requests an emergency call service, the caller's number indicates the caller's current location because the caller requests an emergency call service using a fixed terminal. .

However, unlike the existing wired network, in BcN, a subscriber can have a communication service in every place where the subscriber has his terminal and becomes a network, and several different terminals can simultaneously receive the same communication service in several places. Therefore, in BcN, the user can move on the network, so the caller's location that can be known through the caller's number is incorrect information.

Second, because BcN provides roaming service automatically, the caller cannot receive emergency call service in the current location. In other words, BcN provides a roaming service that allows users to automatically connect a call not only in their service provider network but also in the communication network of another geographically distant service provider.

For example, when a particular user uses a roaming communication service, the user registers his terminal through the P-CSCF of the IMS of the telecommunications provider that provides the communication service in the current region where he does not subscribe, and then the user The communication service is provided through the S-CSCF of the IMS of the subscriber. Accordingly, the emergency call service cannot be received because the service provider location in charge of the current area where the caller is located and the service area of the service provider registered by the caller do not coincide with each other. That is, even if a particular subscriber who is subscribed to a specific carrier in Korea is traveling or traveling on the U.S., the subscriber in the U.S. calls the emergency service because the S-CSCF of IMS, which provides the service for the subscriber, is in Korea. Even if the emergency call is connected to Korea is a problem.

The present invention has been made in view of the above-described circumstances, and an object of the present invention is that a caller who wants an emergency call service is not only in the communication network of a telecommunications carrier that he subscribes to, but also in the communication network of another telecommunication carrier remotely geopolitically. It is an object of the present invention to provide an emergency call providing system and a method in a broadband integrated network that can provide an emergency call service regardless of whether a caller is registered even when the emergency call service is requested.

Another object of the present invention is to provide an emergency call in a broadband integrated network that can automatically detect the current location of the caller who wants an emergency call service in the BcN to automatically inform the emergency service organization that the caller wants to call It is to provide a system and a method thereof.

Another object of the present invention, when the emergency service provider is a pre-set special caller, the contents related to the emergency call service can be shared between the preset subscriber groups, wired / wireless communication between the subscriber groups, or the communication contents can be stored. It is to provide an emergency call providing system and a method in a broadband integrated network that can provide a variety of additional services provided in a broadband integrated network.

In order to achieve the above object, the emergency call providing system in the broadband converged network according to the present invention includes a P-CSCF and an S-CSCF having an M: N structure, and confirms the registration and call type of any caller. An octave switch-IMS network 200 for requesting an emergency call service regardless of whether a caller is registered without transferring a call to the S-CSCF when an emergency call service is requested; When the octave switch-IMS network 200 requests an emergency call service, it finds the current location information of a specific user terminal requesting an emergency call service, and sends the caller location information that the caller finds to deliver to the desired emergency service provider. An emergency service application server 300 for transmitting to the octave switch-IMS network 200; It manages the location information of all the user terminal existing in its area, when the emergency service application server 300 requests the current location information for a specific user, requests the current location information to a specific user terminal 100 The location information management system 400 converts the result into a format defined by an application service and delivers the result to the emergency service application server 300.

Here, the service support server 500 for providing various additional services preset by the called party to a preset user terminal group under the control of the emergency service application server 300; It is preferable to further include a subscriber information management system 600 for integrated management of the service profile of the subscriber, registration information of the S-CSCF, subscriber registration status information, AKA authentication information, etc. under the control of the emergency service application server 300. Do.

In order to achieve the above object, an emergency call providing method in an integrated network according to the present invention, when a specific terminal user originating a specific call in any octave switch-IMS network in a broadband integrated network, for a caller Confirming whether or not to register and whether the received call is an emergency service request call; If it is determined that the call received from the octave switch-IMS network is an emergency call, forwarding the received emergency service call to the emergency service application server regardless of whether the caller is registered; The emergency service application server analyzing the caller's URI and querying the caller's current location information using only the caller's URI; The location information management system includes the steps of querying a current location based on caller information to a subscriber information management system and a system for managing subscriber information of another network or another service or for managing location information; The location information management system converts the location information of the subscriber into a preset form, stores it and delivers it to the emergency service application server; The service application server selects an optimal emergency service provider as soon as possible based on the URI of the called party, and sends a service request call to an appropriate octave switch-IMS network in which the emergency service provider is located.

Here, if the called party's URI is a URI previously set in the emergency service and the operator sets a specific URI in advance, it is preferable to further include providing an additional service of a preset type through a service support server.

According to the emergency call providing system and method in the broadband integrated network according to the present invention, beyond the level of the emergency service provided by the communication service based on the conventional wired and wireless communication network, guaranteeing mobility, quality of the advantages of BcN It has the advantage of providing an emergency call service and related services with multimedia.

Hereinafter, with reference to the accompanying drawings will be described in detail the configuration and operation of the present invention.

1 is a block diagram of an emergency call providing system in a broadband integrated network according to the present invention. Referring to Figure 1, the emergency call providing system in a broadband integrated network according to the present invention, having a P-CSCF and S-CSCF of M: N structure, and confirms the registration and form of the call of any caller, An octave switch-IMS network 200 for requesting an emergency call service regardless of whether a caller is registered without transferring a call to the S-CSCF when an emergency call service is requested; When the octave switch-IMS network 200 requests the emergency call service, it finds the current location information of a specific user terminal that has requested the emergency call service, and transmits the caller location information found by the caller to the desired emergency service provider. An emergency service application server 300 for transferring to the switch-IMS network 200; It manages the location information of all the user terminal existing in its area, when the emergency service application server 300 requests the current location information for a specific user, requests the current location information to the user terminal 100, A location information management system 400 for converting the result into a format defined by the application service and delivering the result to the emergency service application server 300; A service support server 500 for providing various additional services preset by the called party to a preset user terminal group under the control of the emergency service application server 300; Under the control of the emergency service application server 300 is composed of a subscriber information management system 600 for integrated management of the subscriber's service profile, S-CSCF registration information, subscriber registration status information, AKA authentication information and the like.

The P-CSCF 210 and the S-CSCF 220 shown in FIG. 1 are logical elements included in the octave switch-IMS (CSCF), and the P-CSCF 210 is the first contact point for the user to connect to the IMS network. It provides SIP security function using IPSec, provides authorization verification of bearer resource on transport layer and QoS negotiation function for access network, and S-CSCF 220 interworks with subscriber information management system 600 for SIP authentication procedure. And provides various multimedia application services in connection with the emergency service application server 300 according to the subscriber service profile.

The emergency service application server 300 shown in FIG. 1 analyzes the URI of the caller and inquires the current location information of the caller to the location information management system 400, and also analyzes the URI of the called party to provide the emergency service provider desired by the caller ( 700 sends the emergency service call containing the location information of the caller to the S-CSCF 220 of the appropriate octave switch-IMS network 200 again.

Here, the URI (Universal Resource Identifier) is a unique address representing a resource on the Internet, and the existence of the URI always attaches to the Internet protocol as a basic condition required in the Internet. The URI consists of the following elements:

Protocol ( HTTP or FTP ) + ?: + // + hostname + address

(E.g. http://en.wikipedia.org)

In addition, the subscriber information management system 600 can be shared among the group members for all calls originating and incoming with the URI defined above according to the setting when the number is generated by the operator, or have a meeting among the group members. It performs a variety of additional functions, such as making a call or recording the contents of all service calls.

In addition, the location information management system 400 inquires about the current location of a specific caller to a subscriber information management system (for example, a system managing a subscriber in an access network, a subscriber information management system in a Wibro network, etc.) of another network or another service. It converts subscriber's location information provided from subscriber information management system of other network or other service into appropriate form defined in BcN or emergency service provider, and stores and manages all these processes in its own database. .

With reference to the accompanying Figures 1 to 3 below, an emergency call and additional service providing procedure in a broadband integrated network according to the present invention will be described.

2 is a control flowchart illustrating an emergency call operation of an emergency call providing system in a broadband converged network according to the present invention, and FIG. 3 illustrates an operation of an additional service in the emergency call providing system in a broadband integrated network according to the present invention. This is a control flow diagram to explain.

Referring to FIG. 2, in BcN, a specific terminal user 100 transmits an emergency service call to an emergency service provider 700 through the BcN service network (S201).

The call originated by the terminal user 100 arrives at the P-CSCF 200 of the octave switch-IMS network 200 in charge of session control in the BcN, and the P-CSCF 210 registers the caller of the arrived call. It is determined whether or not (S202). As a result of the determination, when it is determined that the caller of the arrived call is a registered subscriber to the communication operator operating the octave switch-IMS network 200 at the current location, it is determined whether the received call is an emergency service request call (S203).

In step S202, the octave switch-IMS network 200 allocates the network resource through a separate call allocation process even if it is determined that the originator of the arrived call is an unregistered subscriber.

When the terminal user 100 originates a specific call, the octave switch-IMS network 200 checks whether the caller is registered with the caller, and checks whether the originated call is an emergency service request call, such as steps S202 and S203. Perform the operation essentially for all received calls.

When the received call is a registered subscriber, the octave switch-IMS network 200 performs a procedure of providing a general call according to a general call providing procedure if the call is a general call, and an emergency service call providing procedure to be described later if an emergency service request is made. Follow each procedure to provide an emergency service call.

On the other hand, when the octave switch-IMS network 200 determines that the received call is a general call requested by an unregistered subscriber, the octave switch-IMS network 200 does not perform a procedure for providing a general call.

However, if it is determined that the received call is an emergency call, even if an unregistered user requests, each of the procedures for providing an emergency service call is performed according to the emergency service call providing procedure to be described later.

That is, if it is determined that the received call is an emergency call, the P-CSCF 210 of the octave switch-IMS network 200 transmits the received emergency service call to the emergency service application server 300 regardless of whether the caller is registered. (S204).

The emergency service application server 300 analyzes the caller's URI and queries the caller's current location information using only the caller's URI (S205).

The location information management system 400 that has received the caller's location information from the emergency service application server 300 manages the subscriber information of the subscriber information management system 600 and other networks or other services, or manages the location information (eg : Current location based on the sender's information (e.g. URI, or name, or any information that can identify the user, such as social security number or IP), in the system for managing subscribers in the access network or subscriber information management system in the Wibro network Query (S206).

The location information management system 400, which has received the location information of the subscriber from the system that manages subscriber information or location information of another network or other services, may convert the location information of the subscriber from the BcN or the emergency service provider 700. Convert the form to store it and deliver it to the emergency service application server (300) (S207).

At this time, when the location information management system 400 converts the subscriber's location information, the emergency service number (for example: 119 and sos, etc.) is combined with a predetermined code (number or letter) (for example: 119-). 1@kt-ims.net, sos-1@kt-ims.net, etc.) Form a new special number. This special number is entered directly by the operator in consultation with the emergency service provider.

The emergency service application server 300 receiving the caller's current location information selects an optimal emergency service provider 700 as soon as possible based on the result of analyzing the caller's URI (S208) and an emergency service provider ( 700 sends an emergency service request call to the S-CSCF of the appropriate octave switch-IMS network (S209).

The S-CSCF of the octave switch-IMS network obtains information on the incoming URI through the subscriber information management system 600, and transmits a call request to the emergency service provider 700 (S210).

At this time, if the called party's URI is a URI defined by the emergency service and the operator inputs a specific URI, the additional service of the preset type is provided through the service support server 500 shown in FIG. 1.

That is, as shown in Fig. 3, first, the operator of the emergency call providing system in the broadband integrated network sets the URI of a specific called party (S301), and sets a user terminal group whose URI is the specific called party as a group representative number. (S302).

At this time, the emergency service application server 300 determines whether the URI of the called party is a preset URI when the emergency call service occurs (S303).

When the emergency service application server 300 determines that the called party's URI is a predetermined preset URI, the service supporting server sends all calls to the group representative number or the incoming call by temporarily configuring the preset URI in the form of the group representative number. The method transmits the information to the 500 (S304), and requests the information on the URI set from the service support server 500 (S305).

The service support server 500 confirms an additional service that can be serviced through the additional service information of the group member belonging to the incoming URI (S306), and transmits information necessary for call setup to the emergency service application server 300 (S307). ).

Therefore, group user terminals of all personnel participating in relief activities in a specific disaster zone, so that all calls originated or received by this URI can be shared among pre-entered group members, or conferences can be held between members using terminals. In addition, by automatically recording the contents of all calls that are being serviced, it is possible to facilitate smooth communication between members to facilitate the relief activities, it is also possible to record and maintain the entire relief schedule. Thus, if necessary, an emergency service provider can analyze the entire process of disaster relief.

As described above, according to the emergency call providing system and method in the broadband integrated network according to an embodiment of the present invention, the caller who wants the emergency call service is not only in the communication network of the telecommunications company to which he subscribes, but also geopolitically. Emergency call service is provided regardless of the caller's subscription even when the emergency call service is requested while being in the communication network of another distant communication provider.

In addition, when providing an emergency call service, it can automatically determine the location of the caller and automatically notify the emergency service agency that the caller wants to call.

In addition, if the emergency service provider is a special caller set in advance, the information related to the emergency service is provided between the preset subscriber groups, wired / wireless communication between the subscriber groups, or provided in the broadband integrated network. Various additional services can be provided.

On the other hand, the present invention is not limited to the above-described embodiment, but can be modified and modified within the scope not departing from the gist of the present invention, such modifications and changes should be regarded as belonging to the following claims. will be.

Claims (7)

It is equipped with P-CSCF and S-CSCF of M: N structure. It checks whether any caller is registered and the type of call, and if emergency call service is requested, caller is not forwarded to S-CSCF. An octave switch-IMS network requesting an emergency call service irrespective of; When the octave switch-IMS network requests an emergency call service, the current position information of a specific user terminal requesting an emergency call service is found, and the octave switch receives caller location information found to be transmitted to a desired emergency service provider by the caller. An emergency service application server for delivering to the IMS network; It manages the location information of all user terminals existing in its own area. When the emergency service application server requests the current location information for a specific user, the current location information is requested to a specific user terminal, and the result is an application service. Emergency call providing system in a broadband integrated network, characterized in that consisting of a location information management system to convert to the format defined in the and delivered to the emergency service application server. The method of claim 1, A service support server for providing various additional services preset by the called party to a preset user terminal group under the control of the emergency service application server; In the broadband integrated network further comprising a subscriber information management system for integrated management of the subscriber's service profile, S-CSCF registration information, subscriber registration status information, AKA authentication information, etc. under the control of the emergency service application server. Emergency call provision system. The method of claim 1, wherein the emergency service application server Inquiry of the caller's current location information to the location information management system by analyzing the caller's URI, emergency call providing system in the broadband integrated network characterized in that the caller's URI is analyzed and delivered to the emergency service provider desired . The method of claim 2, wherein the subscriber information management system When a number is generated by an operator, it can be shared among group members, conferences can be made between group members, or all service calls are recorded for all calls originated and received at the URI defined above according to the settings. Emergency call providing system in a broadband integrated network, characterized in that for executing various additional functions such as. When a specific terminal user originates a specific call in any octave switch-IMS network in the broadband converged network, confirming whether the caller is registered and whether the received call is an emergency service request call; If it is determined that the call received from the octave switch-IMS network is an emergency call, forwarding the received emergency service call to the emergency service application server regardless of whether the caller is registered; The emergency service application server analyzing the caller's URI and querying the caller's current location information using only the caller's URI; The location information management system includes the steps of querying a current location based on caller information to a subscriber information management system and a system for managing subscriber information of another network or another service or for managing location information; The location information management system converts the location information of the subscriber into a preset form, stores it and delivers it to the emergency service application server; The service application server selects an optimal emergency service provider as soon as possible based on the URI of the called party, and sends an emergency service request call to an appropriate octave switch-IMS network in which the emergency service provider is located. Emergency call providing method in a broadband integrated network. The system of claim 5, wherein the location information management system When converting the location information of the subscriber, emergency call providing method in the broadband converged network, characterized in that a new code number is formed by combining a predetermined code (number or letter) after the emergency service number. The method of claim 5, If the called party's URI is a URI preset in the emergency service, and a specific URI preset by the operator, the emergency call in the broadband integrated network further comprises providing an additional service of a preset type through a service support server. How to Provide.

Images