KR101662294B1 - System and method for notification service of called party status of outbound roamer - Google Patents

Abstract

The present invention discloses a roaming subscriber's notification status service system and method. That is, roaming information for an outbound roaming called subscriber is acquired according to a call connection request of the calling subscriber, and a call connection using an ISDN (ISDN User Part) protocol is attempted to a called subscriber through a roaming service supporting network, And notifying of the call release cause information; Acquires roaming information on the called subscriber through the roaming service supporting network in response to a request for location information of an originating exchange in response to a call connection request of the calling subscriber and provides the roaming information to the calling switching device, A location registration unit for receiving the call release cause information and requesting the call reception notification service based on the call release cause information; And a notification support device for requesting the short message center to transmit a call notification message to the called subscriber through the roaming service support network according to a call notification service service request received from the location registration window, Part) protocol interworking section to deliver the call state information to the roaming recipient so that the called subscriber can be notified of the incomplete incomplete incoming information.

Description

[0001] SYSTEM AND METHOD FOR NOTIFICATION SERVICE OF CALLED PARTY STATUS OF OUTBOUND ROAMER [0002]

More particularly, the present invention relates to an outbound roaming (ISDN) service for a call entering a communication network of a roaming provider through message extraction in an ISDN (ISDN User Part) protocol interworking section, And more particularly to a roaming subscriber's notification status service system and method thereof.

The existing call notification service automatically subscribes when the subscriber roams abroad (in this case, when the domestic subscriber roams to the overseas operator mobile communication network and is limited to outbound roaming) It is canceled.

The operation condition of the existing call termination notification service is such that the call termination state corresponds to a state where the call termination is not completed (normally, when the call is not communicated), that is, power off, no page response (NPR) (Release Cause, ITU-T Q.850 definition) corresponding to the call originating call originating call (C-Busy).

At this time, the collection of the release cause is performed through the MAP (Mobile Application Part) interworking section, and the notification to the called party is also performed using the SMS (Short Message Service) through the MAP interworking section .

However, the operation of the existing call notification service may be unclear depending on the interworking structure of the interworking foreign mobile communication service provider network and the MAP protocol operation. In this case, a MAP protocol message must be transmitted The processing method of the gateway server may also affect the service operation.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a home location registration system and a home location registration system, Acquires the roaming information for the called subscriber, and provides the acquired roaming information to the originating exchange to allow the originating exchange to inform the called subscriber of the call release cause information in response to the call connection failure using the ISUP (ISDN User Part) protocol The ISDN User Part (ISUP), the ISDN User Part (ISUP), and the ISDN User Part (ISDN User Part) of the roaming subscriber, Incoming call for incoming call to the communication network of the roaming provider through message extraction in the protocol interlocking interval As the information is passed to the called being to join outbound roaming.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide an apparatus and method for transmitting and receiving a location information of an originating exchange, Acquiring roaming information for a bound roaming called subscriber and providing the acquired roaming information to the originating exchange to derive a call connection using an ISDN (User Part) protocol (ISUP) for the called subscriber, A home location registration apparatus collecting call release cause information according to a connection failure and requesting transmission of a short message including the call release cause information to the called subscriber and a roaming subscriber's notification state service method of a home location apparatus, The ISDN user part (ISUP) protocol interworking section, To the called subscriber in the outbound roaming mode.

According to an aspect of the present invention, there is provided a call notification service system of a roaming subscriber according to an aspect of the present invention, the system including: a roaming information acquisition unit configured to acquire roaming information on a called subscriber roaming outbound according to a call connection request of the calling subscriber, An originating exchange for attempting a call connection using an ISDN (ISDN User Part) protocol to a called subscriber through a service support network, collecting and notifying call release cause information according to call connection failure; Acquires roaming information on the called subscriber through the roaming service supporting network in response to a request for location information of an originating exchange in response to a call connection request of the calling subscriber and provides the roaming information to the calling switching device, A location registration unit for receiving the call release cause information and requesting the call reception notification service based on the call release cause information; And a notification support device for requesting a short message center to transmit a notification message to a called subscriber through the roaming service support network in response to a call notification service request received from the location registration window.

According to another aspect of the present invention, there is provided a call termination notification service system of a roaming subscriber: the system obtains roaming information for an outbound roaming called subscriber according to a call connection request of the calling subscriber, An originating exchange for attempting a call connection using an ISDN (ISDN User Part) protocol to a called subscriber, collecting and notifying call release cause information according to a call connection failure; Acquiring roaming information on the called subscriber through the roaming service supporting network in response to a request for location information of an originating exchange according to a call connection request of the calling subscriber, And provides the acquired roaming information to the originating exchange to receive the call release cause information through the method, receives the call release cause information notified from the originating exchange, and requests the destination state notification service based on the call release cause information A location registration device; And a notification support device for requesting a short message center to transmit a notification message to a called subscriber through the roaming service support network in response to a call notification service request received from the location registration window.

According to another aspect of the present invention, there is provided a location registration apparatus, comprising: an originating subscriber who is outbound roaming through interworking with a roaming service support network in response to a location information request of an originating exchange according to a call connection request of a calling subscriber, A subscriber information acquiring unit for acquiring roaming information for the subscriber; And provides the acquired roaming information to the originating exchange to derive call connection using an ISDN (ISDN User Part) protocol for the called subscriber, and to collect call release cause information according to call connection failure from the originating exchange A processor; And a service request unit for requesting transmission of a short message including the call release cause information for the called subscriber.

Preferably, the information processing unit provides Cameron subscriber information (Termination-CSI) including the roaming information defined for receiving the call release cause information according to a request for location information of the originating exchange apparatus do.

Preferably, the information processing unit receives the call release cause information from the call switching apparatus through a CAM Application Protocol (CAP) trigger.

Preferably, the service request unit requests transmission of the short message including identification information of the calling subscriber, local time information, and the call release cause information.

According to another aspect of the present invention, there is provided a location registration apparatus, comprising: an originating subscriber who is outbound roaming through interworking with a roaming service support network in response to a location information request of an originating exchange according to a call connection request of a calling subscriber, A subscriber information acquiring unit for acquiring roaming information for the subscriber; To provide the acquired roaming information to the originating exchange so as to be notified of the call release cause information according to a predefined manner according to the type of the communication network in which the originating exchange is located, and to use the ISDN User Part An information processing unit for guiding a call connection and collecting the call release cause information according to call connection failure from the call switching apparatus; And a service request unit for requesting transmission of a short message including the call release cause information for the called subscriber.

Preferably, the information processing unit provides Camer subscriber information (Termination-CSI) including the roaming information according to a location information request of the originating exchange.

Preferably, the information processing unit receives the call release cause information from the call switching apparatus through a CAM application protocol (CAP) trigger method.

Preferably, the service request unit requests transmission of the short message including identification information of the calling subscriber, local time information, and the call release cause information.

According to another aspect of the present invention, there is provided a method of notifying a roaming subscriber of an incoming call status, the method comprising: requesting location information in response to a call connection request of a calling subscriber; A roaming information acquisition step of acquiring roaming information on an outbound roaming destination subscriber through interworking with the roaming service support network in response to the location information request; A roaming information providing step of the home location registration device providing the acquired roaming information to the originating exchange; A call connection attempt in which the call switching apparatus attempts to establish a call connection using an ISUP (ISDN User Part) protocol to the called subscriber through the roaming service supporting network; A cause information notification step of collecting and notifying the call release cause information according to the call connection failure; A service request step in which the location registration device receives call release cause information notified from the call switching device and requests a call notification service on the basis of the call release cause information; And a message transmission step of requesting the notification support apparatus to transmit a notification of a reception state notification message to the called subscriber through the roaming service support network to the SMS message center according to the reception state notification service request.

Preferably, the roaming information providing step provides Cameron subscriber information (Termination-CSI) including the roaming information defined to receive the call release cause information to the source exchange apparatus.

Preferably, the cause information notification step notifies the call release cause information through a CAM application protocol (CAP) trigger.

According to another aspect of the present invention, there is provided a method of notifying a roaming subscriber of an incoming call status, the method comprising: requesting location information in response to a call connection request of a calling subscriber; A roaming information acquisition step of acquiring roaming information on an outbound roaming destination subscriber through interworking with the roaming service support network in response to the location information request; The roaming information providing step of providing the acquired roaming information to the originating exchange to receive the call release cause information through a predefined manner according to the type of the network in which the origination switching apparatus is located; A call connection attempt in which the call switching apparatus attempts to establish a call connection using an ISUP (ISDN User Part) protocol to the called subscriber through the roaming service supporting network; A cause information notification step of collecting and notifying the call release cause information according to the call connection failure; A service request step in which the location registration device receives call release cause information notified from the call switching device and requests a call notification service on the basis of the call release cause information; And a message transmission step of requesting the notification support apparatus to transmit a notification of a reception state notification message to the called subscriber through the roaming service support network to the SMS message center according to the reception state notification service request.

Preferably, the roaming information providing step provides Cameron subscriber information (Termination-CSI) including the roaming information defined to receive the call release cause information to the source exchange apparatus.

Preferably, the cause information notification step informs the call release cause information through a CAM application protocol (CAP) trigger method.

According to another aspect of the present invention, there is provided a method of informing an incoming call status of a roaming subscriber, the method comprising: receiving an information request for a location information of an originating exchange according to a call connection request of the calling subscriber; A roaming information acquisition step of acquiring roaming information on an outbound roaming incoming subscriber through interworking with a roaming service support network; An information providing step of providing the acquired roaming information to the originating exchange so as to induce a call connection using an ISDN (ISDN User Part) protocol for the called subscriber; An information collection step of collecting call release cause information according to call connection failure from the call switching apparatus; And a service request step of requesting transmission of a short message including the call release cause information for the called subscriber.

Preferably, the information providing step provides Camer subscriber information (Termination-CSI) including the roaming information defined to receive the call release cause information according to a request for location information of the originating exchange, .

Preferably, the information collecting step receives the call release cause information from the call switching apparatus through a CAM application protocol (CAP) trigger.

Preferably, the service request step requests transmission of the short message including identification information of the calling subscriber, local time information, and the call release cause information.

According to another aspect of the present invention, there is provided a method of informing a roaming subscriber of an incoming call status, the method comprising: receiving an information request for a location information of an originating exchange according to a call connection request of the calling subscriber; A roaming information acquisition step of acquiring roaming information on an outbound roaming incoming subscriber through interworking with a roaming service support network; To provide the acquired roaming information to the originating exchange so as to be notified of the call release cause information according to a predefined manner according to the type of the communication network in which the originating exchange is located, and to use the ISDN User Part An information providing step of guiding a call connection; An information collection step of collecting call release cause information according to call connection failure from the call switching apparatus; And a service request step of requesting transmission of a short message including the call release cause information for the called subscriber.

Preferably, the information providing step provides Cameron subscriber information (Termination-CSI) including the roaming information according to a location information request of the originating exchange apparatus operated on a WCDMA basis.

Preferably, the information collecting step receives the call release cause information from the call switching apparatus through a CAM application protocol (CAP) trigger method.

Preferably, the service request step requests transmission of the short message including identification information of the calling subscriber, local time information, and the call release cause information.

According to the roaming subscriber notification service system and method of the roaming subscriber according to the present invention, it is possible to transmit the call status information to the roaming recipient through the message extraction in the ISDN (User Equipment Interface) protocol interworking interval, Information can be notified so that satisfaction of the subscriber's communication service can be increased. In addition, it is possible to facilitate the management of incoming information in the terminal by transmitting the origination number information of the same number system as that of the domestic network and the incoming time based on the local time to the roaming incoming subscriber.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic configuration diagram of a roaming subscriber's call notification service system according to a first embodiment of the present invention; FIG.
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001]
3 is a schematic configuration diagram of a roaming subscriber's subscriber notification service system according to a second embodiment of the present invention;
FIG. 4 is a schematic configuration diagram of a home location register according to a second embodiment of the present invention; FIG.
FIG. 5 and FIG. 6 are schematic flowcharts for explaining a method of informing a caller of a roaming subscriber according to a first embodiment of the present invention;
FIG. 7 and FIG. 8 are schematic flowcharts for explaining a method of informing a caller of a roaming subscriber according to a second embodiment of the present invention;

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

1 shows a schematic configuration diagram of a roaming subscriber's subscriber notification service system according to a first embodiment of the present invention.

As shown in FIG. 1, the system obtains a Mobile Subscriber Roaming Number (MSRN) for a called subscriber according to a call connection request of the calling subscriber and transmits a call connection to the called subscriber through a roaming service supporting network An attempted WCDMA-based originating exchange (100, WMSC); The roaming service providing network 100 obtains roaming information for the called subscriber through the roaming service support network and provides the roaming information to the calling and switching center 100. The roaming service provider 100 receives call release cause information notified from the calling and switching center 100, A home location registration device 200 (HLR) for requesting a service; And a Telephony IP Interaction System (TISIS) 300 for requesting transmission of a call notification message to the SMSC 400 according to the call status notification service request. The roaming service support network includes a gateway location register (GLR) 500 for managing roaming information for an outbound roaming called subscriber, a source exchange apparatus 100 for managing a roaming information of a called subscriber, (CGS) and an international gateway company 700 that performs an international call processing with the switching device 800. The gateway gateway 700 includes a gateway gateway 700,

The originating exchange apparatus 100 acquires roaming information about the called subscriber according to a call connection request of the calling subscriber and tries to establish a call connection using the ISUP (ISDN User Part) protocol to the called subscriber through the roaming service supporting network. More specifically, the originating exchange apparatus 100 operating on the WCDMA communication network transmits a location information request (SRI) to the home location registration apparatus 200 according to the call connection request of the originating subscriber, And receives roaming information (MSRN) for an outbound roaming called subscriber from device 200. At this time, the originating exchange apparatus 100 receives the Camer subscriber information (Termination-CSI) including the roaming information from the home location registration apparatus 200, and then transmits the call release cause information ISUP Release Cause). In addition, the originating exchange 100 exchanges information with the called exchange 800 where the called subscriber is located through the international gateway exchanger 600 and the international gateway company 700 located in the roaming service supporting network based on the roaming information. ISUP traffic is attempted.

In addition, the originating exchange apparatus 100 collects call release cause information according to call connection failure using the ISUP protocol, and notifies the home location registration apparatus 200 of the call release cause information. More specifically, the originating exchange apparatus 100 transmits a call connection failure message to the terminating switching apparatus 800 through the international gateway exchanger 600 (CGS) and the international gateway company 700, for example, during a call (H'91 , User busy), No Answer (H'93, No answer), and Other incomplete (H'9F, unspecified), the corresponding call release cause information (ISUP Release Cause) And notifies the home location registration device 200 through a CAPM (CAM Application Protocol) trigger.

The home location registering device 200 obtains and provides roaming information for an outbound roaming called subscriber through interworking with a roaming service supporting network in response to a location information request received from the originating exchange 100. [ More specifically, when the home location registering device 200 receives the location information request (SRI) from the originating exchange 100, the home location registering device 200 confirms that it is a roaming subscriber through database search, Roaming information (MSRN) for the outbound roaming called subscriber is obtained by transmitting a roaming information request message (PRN) to the domestic gateway location register 500 located in the support network. In addition, the home location registration apparatus 200 includes the roaming information for notifying the call release cause information (ISUP Release Cause) when the call connection with the called subscriber is failed from the originating exchange apparatus 100 operated on the WCDMA communication network (ISDN User Part) protocol for the called subscriber by transmitting the Camer subscriber information (Termination-CSI).

In addition, the home location registration apparatus 200 collects the call release cause information in response to call connection failure from the source exchange apparatus 100. More specifically, the home location registration apparatus 200 receives a call connection failure from the originating exchange apparatus 100 to the destination exchange apparatus 800, for example, during a call (H'91, User busy), no answer (H'93, (CAP) CAMEL Application Protocol (CAP) Trigger when the incomplete call termination state (eg, H'9F, unspecified) is generated, and the corresponding call release cause information do.

In addition, the home location registering apparatus 200 requests the notification support apparatus 300 (TIIS) to transmit the call reception notification message including the call release cause information to the called subscriber, (300) to request the short message center (400) to transmit a notification message to the called subscriber via the roaming service support network. At this time, the reception state notification message includes the identification information of the calling subscriber, the local time information, and the call cancellation cause information. In particular, in the case of the identification information of the calling subscriber, roaming It is preferable to facilitate the management of incoming information in the terminal and the like.

Hereinafter, a more specific configuration of the home location registration device 200 according to the first embodiment of the present invention will be described with reference to FIG.

As shown in the figure, the home location registering device 200 interlocks with the roaming service supporting network according to a location information request of the originating exchange 100 according to a call connection request of the calling subscriber, A subscriber information acquisition unit 210 for acquiring information; An information processing unit (220) for providing the acquired roaming information to the originating exchange and collecting call release cause information according to call connection failure from the originating exchange; And a service request unit 230 for requesting transmission of a short message including the call release cause information for the called subscriber.

The subscriber information acquiring unit 210 acquires roaming information for an outbound roaming called subscriber through interworking with a roaming service supporting network in response to a location information request received from the originating exchange apparatus 100. [ More specifically, when receiving a location information request (SRI) from the originating exchange apparatus 100, the subscriber information acquisition unit 210 confirms that the subscriber is a roaming subscriber through database search, Roaming information (MSRN) for the outbound roaming called subscriber is obtained by transmitting a roaming information request message (PRN) to the domestic gateway location register 500 located in the support network.

The information processing unit 220 provides the acquired roaming information to guide a call connection using an ISDN (ISDN User Part) protocol for the called subscriber. More specifically, the information processing unit 220 includes the roaming information for notifying the call release cause information (ISUP Release Cause) when the call connection with the called subscriber is failed from the originating exchange apparatus 100 operated on the WCDMA communication network (ISDN User Part) protocol for the called subscriber by transmitting the Camer subscriber information (Termination-CSI).

In addition, the information processing unit 220 collects the call release cause information in response to the call connection failure from the call switching apparatus 100. More specifically, the information processing unit 220 receives a call connection failure from the source exchange apparatus 100 to the destination exchange apparatus 800, for example, during a call (H'91, User busy), no answer (H'93, No answer) When an incomplete incoming state such as H'9F or unspecified occurs, the corresponding call release cause information (ISUP Release Cause) is collected through CAMEL Application Protocol (CAP) trigger.

The service request unit 230 requests the TIIS (Telephony IP Interaction System) 300 to transmit a call notification message including the call release cause information to the called subscriber 300, To request the short message center 400 to send a notification of the destination status notification message to the called subscriber through the roaming service support network. At this time, the reception state notification message includes the identification information of the calling subscriber, the local time information, and the call cancellation cause information. In particular, in the case of the identification information of the calling subscriber, roaming To the called subscriber.

As described above, according to the roaming subscriber's call notification service system of the roaming subscriber according to the first embodiment of the present invention, the ISUP (ISDN), which is more reliable than the message exchange of the Mobile Application Part User Part) protocol interworking section, the incoming subscriber can be notified of the incomplete incomplete incoming information, thereby increasing the satisfaction level of the subscriber's communication service, Callback). In addition, by transmitting the calling number information of the same number system as that of the domestic network to the roaming incoming subscriber, it is possible to more conveniently manage the incoming information in the terminal and to deliver the incoming time on a local time basis.

Hereinafter, a configuration of a call notification service system of a roaming subscriber according to a second embodiment of the present invention will be described with reference to FIG.

3, the system obtains a Mobile Subscriber Roaming Number (MSRN) for a called subscriber according to a call connection request of the calling subscriber and transmits a call connection to the called subscriber through a roaming service supporting network An attempted CDMA network based outgoing exchange (100, MSC); The roaming service providing network 100 obtains roaming information for the called subscriber through the roaming service support network and provides the roaming information to the calling and switching center 100. The roaming service provider 100 receives call release cause information notified from the calling and switching center 100, A home location registration device 200 (HLR) for requesting a service; And a Telephony IP Interaction System (TISIS) 300 for requesting transmission of a call notification message to the SMSC 400 according to the call status notification service request. The roaming service support network includes a gateway location register (GLR) 500 for managing roaming information for an outbound roaming called subscriber, a source exchange apparatus 100 for managing a roaming information of a called subscriber, (CGS) and an international gateway company 700 that performs an international call processing with the switching device 800. The gateway gateway 700 includes a gateway gateway 700,

The originating exchange apparatus 100 acquires roaming information about the called subscriber according to a call connection request of the calling subscriber and tries to establish a call connection using the ISUP (ISDN User Part) protocol to the called subscriber through the roaming service supporting network. More specifically, the source exchange apparatus 100 operating on the CDMA communication network transmits a location request (LOC) to the home location registration apparatus 200 according to the call connection request of the originating subscriber, (MSRN) for an outbound roaming called subscriber from the base station 200. Also, the originating exchange apparatus 100 transmits the roaming information to the destination exchange apparatus 800 located in the roaming service support network through the international gateway exchange 600 and the international gateway company 700 located in the roaming service support network. ISUP traffic is attempted.

In addition, the originating exchange apparatus 100 collects call release cause information according to call connection failure using the ISUP protocol, and notifies the home location registration apparatus 200 of the call release cause information. More specifically, the originating exchange apparatus 100 transmits a call connection failure message to the terminating exchange apparatus 800 through the international gateway exchanger 600 and the international gateway company 700, for example, in a busy state (H'91, User busy) (H'93, No answer) and other non-completion (H'9F, unspecified), it collects the corresponding call release cause information (ISUP Release Cause) When a called subscriber number starts with a number indicating an outbound roaming subscriber, for example, '15620 ~ 6', a mobile application part (MAP) triggered message (TTNR, Transefer To Number Request) And notifies the location registration apparatus 200 of the location registration.

The home location registering device 200 obtains and provides roaming information for an outbound roaming called subscriber through interworking with a roaming service supporting network in response to a location information request received from the originating exchange 100. [ More specifically, when receiving a location information request (LOC) from the originating exchange apparatus 100, the home location registering apparatus 200 confirms the roaming subscriber through database search, Roaming information (MSRN) for the outbound roaming called subscriber is obtained by transmitting a roaming information request message (PRN) to the domestic gateway location register 500 located in the support network. Also, the home location registration apparatus 200 transmits the acquired roaming information to the call switching apparatus 100 operated on the CDMA communication network, thereby inducing call connection using the ISUP (ISDN User Part) protocol for the called subscriber.

In addition, the home location registration apparatus 200 collects the call release cause information in response to call connection failure from the source exchange apparatus 100. More specifically, the home location registration apparatus 200 receives a call connection failure from the originating exchange apparatus 100 to the destination exchange apparatus 800, for example, during a call (H'91, User busy), no answer (H'93, (TTNR) message based on a mobile application part (MAP) trigger message when the incomplete incoming state, such as H'9F or unspecified, is generated, Transefer To Number Request).

In addition, the home location registering apparatus 200 requests the notification support apparatus 300 (TIIS) to transmit the call reception notification message including the call release cause information to the called subscriber, (300) to request the short message center (400) to transmit a notification message to the called subscriber via the roaming service support network. At this time, the reception state notification message includes the identification information of the calling subscriber, the local time information, and the call cancellation cause information. In particular, in the case of the identification information of the calling subscriber, roaming It is preferable to facilitate the management of incoming information in the terminal and the like.

Hereinafter, a more specific configuration of the home location registration device 200 according to the second embodiment of the present invention will be described with reference to FIG.

As shown in the figure, the home location registering device 200 interlocks with the roaming service supporting network according to a location information request of the originating exchange 100 according to a call connection request of the calling subscriber, A subscriber information acquisition unit 210 for acquiring information; An information processing unit (220) for providing the acquired roaming information to the originating exchange and collecting call release cause information according to call connection failure from the originating exchange; And a service request unit 230 for requesting transmission of a short message including the call release cause information for the called subscriber.

The subscriber information acquiring unit 210 acquires roaming information for an outbound roaming called subscriber through interworking with a roaming service supporting network in response to a location information request received from the originating exchange apparatus 100. [ More specifically, when a location information request (LOC) is received from the originating exchange apparatus 100 operated on the CDMA communication network, the subscriber information acquisition unit 210 confirms that the subscriber information is a roaming subscriber through database search, Roaming information (MSNN) for the outbound roaming called subscriber is obtained by transmitting a roaming information request message (PRN) to the domestic gateway location register 500 located in the roaming service support network .

The information processing unit 220 provides the acquired roaming information to guide a call connection using an ISDN (ISDN User Part) protocol for the called subscriber. More specifically, the information processing unit 220 transmits the acquired roaming information to the call switching apparatus 100 operated on the CDMA communication network, thereby inducing call connection using the ISUP (ISDN User Part) protocol for the called subscriber.

  In addition, the information processing unit 220 collects the call release cause information in response to the call connection failure from the call switching apparatus 100. More specifically, the information processing unit 220 receives a call connection failure from the source exchange apparatus 100 to the destination exchange apparatus 800, for example, during a call (H'91, User busy), no answer (H'93, No answer) (TTNR, Transefer To) message based on a Mobile Application Part (MAP) trigger message in response to an incomplete incoming state such as H'9F, unspecified, Number Request).

The service request unit 230 requests the TIIS (Telephony IP Interaction System) 300 to transmit a call notification message including the call release cause information to the called subscriber 300, To request the short message center 400 to send a notification of the destination status notification message to the called subscriber through the roaming service support network. At this time, the reception state notification message includes the identification information of the calling subscriber, the local time information, and the call cancellation cause information. In particular, in the case of the identification information of the calling subscriber, roaming To the called subscriber.

As described above, according to the roaming subscriber's call notification service system according to the second embodiment of the present invention, the ISUP (ISDN), which is more reliable than the message exchange of the Mobile Application Part (MAP) User Part) protocol interworking section, the incoming subscriber can be notified of the incomplete incomplete incoming information, thereby increasing the satisfaction level of the subscriber's communication service, Callback). In addition, by transmitting the calling number information of the same number system as that of the domestic network to the roaming incoming subscriber, it is possible to more conveniently manage the incoming information in the terminal and to deliver the incoming time on a local time basis.

Hereinafter, with reference to FIG. 5 and FIG. 6, a method of notifying a call reception status of a roaming subscriber according to the first embodiment of the present invention will be described. Here, for convenience of description, the configurations shown in FIGS. 1 and 2 will be described with reference to corresponding reference numerals.

First, a method of driving a call notification service of a roaming subscriber will be described with reference to FIG.

First, the originating exchange 100 acquires roaming information on a called subscriber according to a call connection request of the calling subscriber, and tries to connect a call using the ISUP (ISDN User Part) protocol to the called subscriber through the roaming service supporting network S110). Preferably, the originating exchange apparatus 100 operating on the WCDMA communication network transmits a location information request (SRI) to the home location registration apparatus 200 according to the call connection request of the originating subscriber.

Then, the home location registering device 200 acquires and provides roaming information on the outbound roaming destination subscriber through interworking with the roaming service supporting network in response to the location information request received from the source switching device 100 (S120-S140). More specifically, when the home location registering device 200 receives the location information request (SRI) from the originating exchange 100, the home location registering device 200 confirms that it is a roaming subscriber through database search, Roaming information (MSRN) for the outbound roaming called subscriber is obtained by transmitting a roaming information request message (PRN) to the domestic gateway location register 500 located in the support network. Further, the home location registration device 200 includes the roaming information for notifying the call release cause information (ISUP Release Cause) when the call connection with the called subscriber from the originating exchange device 100 operated on the basis of the WCDMA communication network is failed (ISDN User Part) protocol for the called subscriber by transmitting the Camer subscriber information (Termination-CSI).

The originating exchange apparatus 100 then transmits the roaming information to the destination exchange apparatus 800 where the roaming destination subscriber is located through the international gateway exchange 600 and the international gateway company 700 located in the roaming service support network based on the roaming information, Lt; RTI ID = 0.0 > (S150). ≪ / RTI >

Then, the call switching apparatus 100 collects call release cause information according to the call connection failure using the ISUP protocol, and notifies the home location registration apparatus 200 of the call release cause information (S160-S170). Preferably, the originating exchange 100 is connected to the terminating exchange 800 through an international gateway changer 600 (CGS) and an international gateway operator 700, , User busy), No Answer (H'93, No answer), and Other incomplete (H'9F, unspecified), the corresponding call release cause information (ISUP Release Cause) And notifies the home location registration device 200 through a CAPM (CAM Application Protocol) trigger.

Next, the home location registering device 200 requests the TIIS (Telephony IP Intergration System) 300 to transmit a reception state notification message including the call release cause information to the called subscriber, And causes the device 300 to request the short message center 400 to transmit the notification of the reception status to the called subscriber through the roaming service support network (S180 - S200). At this time, the reception state notification message includes the identification information of the calling subscriber, the local time information, and the call cancellation cause information. In particular, in the case of the identification information of the calling subscriber, roaming To the called subscriber.

Hereinafter, a method of driving the home location registration apparatus 200 according to the first embodiment of the present invention will be described with reference to FIG.

First, in response to the request for location information received from the originating exchange 100, roaming information on the outbound roaming destination subscriber is obtained through interworking with the roaming service supporting network (S210 - S240). More specifically, when the subscriber information acquisition unit 210 receives a location information request (SRI) from the originating exchange apparatus 100, it confirms that the subscriber is a roaming subscriber through database search, Roaming information (MSRN) for the outbound roaming called subscriber is obtained by transmitting a roaming information request message (PRN) to the domestic gateway location register 500 located in the support network.

Then, the call origination information for the call connection failure due to call connection failure is collected from the originating exchange 100 by providing the acquired roaming information to induce call connection using ISUP (ISDN User Part) protocol for the called subscriber (S250-S270). Preferably, the information processing unit 220 includes the roaming information for notifying the call release cause information (ISUP Release Cause) when the call connection with the called subscriber is failed from the call switching apparatus 100 operated on the WCDMA communication network (ISDN User Part) protocol for the called subscriber by transmitting the Camer subscriber information (Termination-CSI). In addition, the information processing unit 220 receives a call connection failure message from the originating exchange apparatus 100 to the destination exchange apparatus 800, for example, during a call (H'91, User busy), a non-answer (H'93, No answer) When an incomplete incoming state such as completion (H'9F, unspecified) occurs, the corresponding call release cause information (ISUP Release Cause) is collected through a CAM application protocol (CAP) trigger.

Thereafter, the service requesting unit 230 requests the notification support apparatus 300 (TIIS: Telephony IP Intergration System) to transmit the notification of the call reception state including the call release cause information to the called subscriber, 300 to request the short message center 400 to transmit a call notification message to the called subscriber through the roaming service support network in step S280.

As described above, according to the first embodiment of the present invention, the roaming subscribers can receive the ISUP (ISDN) message, which is more reliable than the message exchange of the mobile application protocol (MAP) User Part) protocol interworking section, the incoming subscriber can be notified of the incomplete incomplete incoming information, thereby increasing the satisfaction level of the subscriber's communication service, Callback). In addition, by transmitting the calling number information of the same number system as that of the domestic network to the roaming incoming subscriber, it is possible to more conveniently manage the incoming information in the terminal and to deliver the incoming time on a local time basis.

Hereinafter, with reference to FIG. 7 and FIG. 8, a method of notifying a call reception status of a roaming subscriber according to a second embodiment of the present invention will be described. Here, for convenience of description, the configurations shown in FIGS. 3 and 4 will be described with reference to corresponding reference numerals.

First, referring to FIG. 7, a description will be made of a method of operating a call notification service of a roaming subscriber.

First, the originating exchange 100 acquires roaming information on a called subscriber according to a call connection request of the calling subscriber, and tries to connect a call using the ISUP (ISDN User Part) protocol to the called subscriber through the roaming service supporting network S310). Preferably, the originating exchange apparatus 100 operating on the CDMA communication network transmits a location request (LOC) to the home location registration apparatus 200 according to the call connection request of the originating subscriber.

Then, the home location registering device 200 acquires and provides roaming information on the outbound roaming destination subscriber through interworking with the roaming service supporting network in response to the location information request received from the source switching device 100 (S320-S340). More specifically, when receiving a location information request (LOC) from the originating exchange apparatus 100, the home location registering apparatus 200 confirms the roaming subscriber through database search, Roaming information (MSRN) for the outbound roaming called subscriber is obtained by transmitting a roaming information request message (PRN) to the domestic gateway location register 500 located in the support network. Further, the home location registration apparatus 200 transmits the acquired roaming information to the originating exchange apparatus 100 operated on the CDMA communication network, thereby inducing call connection using the ISUP (ISDN User Part) protocol for the called subscriber.

The originating exchange apparatus 100 then transmits the roaming information to the destination exchange apparatus 800 where the roaming destination subscriber is located through the international gateway exchange 600 and the international gateway company 700 located in the roaming service support network based on the roaming information, Lt; RTI ID = 0.0 > (S350). ≪ / RTI >

Then, the originating exchange apparatus 100 collects call release cause information in response to the call connection failure using the ISUP protocol and notifies the home location registration apparatus 200 (S360-S370). Preferably, the originating exchange apparatus 100 is able to establish a call connection with the terminating switching apparatus 800 through the international gateway exchanger 600 and the international gateway company 700, for example, during a busy (H'91, User busy) (H'93, No answer) and other non-completion (H'9F, unspecified), it collects the corresponding call release cause information (ISUP Release Cause) When a called subscriber number starts with a number indicating an outbound roaming subscriber, for example, '15620 ~ 6', a mobile application part (MAP) triggered message (TTNR, Transefer To Number Request) And notifies the location registration apparatus 200 of the location registration.

Thereafter, the home location registration apparatus 200 requests the TIIS (Telephony IP Intergration System) 300 to transmit the TI notification message including the call release cause information to the called subscriber, (300) to request the short message center (400) to transmit a call notification message to the called subscriber through the roaming service support network (S380 - S400). At this time, the reception state notification message includes the identification information of the calling subscriber, the local time information, and the call cancellation cause information. In particular, in the case of the identification information of the calling subscriber, roaming To the called subscriber.

Hereinafter, a method of driving the home location register 200 according to the second embodiment of the present invention will be described with reference to FIG.

First, in response to the request for location information received from the originating exchange apparatus 100, roaming information on the outbound roaming destination subscriber is obtained through interworking with the roaming service supporting network (S510 - S540). More specifically, when the subscriber information acquisition unit 210 receives a location information request (LOC) from the originating exchange apparatus 100 operated on the CDMA communication network, the subscriber information acquisition unit 210 searches the database And transmits a roaming information request message (PRN) to the domestic gateway location register 500 located in the roaming service support network to confirm the roamed current location, And acquires roaming information MSRN.

Then, the call origination information for the call connection failure due to call connection failure is collected from the originating exchange 100 by providing the acquired roaming information to induce call connection using ISUP (ISDN User Part) protocol for the called subscriber (S550-S570). Preferably, the information processing unit 220 transmits the acquired roaming information to the call switching apparatus 100 operated on the CDMA communication network, thereby inducing call connection using the ISUP (ISDN User Part) protocol for the called subscriber. In addition, the information processing unit 220 receives a call connection failure message from the originating exchange apparatus 100 to the destination exchange apparatus 800, for example, during a call (H'91, User busy), a non-answer (H'93, No answer) When an incomplete incoming state such as completion (H'9F, unspecified) occurs, the corresponding ISUP Release Cause is transmitted as a Mobile Application Part (MAP) trigger based message (TTNR, Transefer To Number Request ).

Thereafter, the service requesting unit 230 requests the notification support apparatus 300 (TIIS: Telephony IP Intergration System) to transmit the notification of the call reception state including the call release cause information to the called subscriber, 300 to request the short message center 400 to transmit the notification message to the called subscriber through the roaming service support network (S580).

As described above, according to the second embodiment of the present invention, there is provided a method of notifying a roaming subscriber of an incoming call by using an ISUP (ISDN) service, which is more reliable than a message exchange of a Mobile Application Part User Part) protocol interworking section, the incoming subscriber can be notified of the incomplete incomplete incoming information, thereby increasing the satisfaction level of the subscriber's communication service, Callback). In addition, by transmitting the calling number information of the same number system as that of the domestic network to the roaming incoming subscriber, it is possible to more conveniently manage the incoming information in the terminal and to deliver the incoming time on a local time basis.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

According to the roaming subscriber notification service system and method of the roaming subscriber according to the present invention, since the call status information is delivered to the roaming caller through message extraction in the interworking period of ISUP (ISDN User Part) protocol, It is not only the use of the related technology but also the possibility of commercialization or operation of the applied device as well as the possibility of being practically and practically usable.

100: Outgoing exchange
200: Home location register
210: Subscriber information acquisition unit 220: Information processing unit
230: Service request unit
300: Notification support device
400: Short Message Center
500: Domestic gateway location register
600: International Gateway Exchange
700: International Gateway Operator
800: incoming exchange

Claims (24)

delete delete A subscriber information acquisition unit for acquiring roaming information on an outbound roaming subscriber through interworking with a roaming service support network in response to a location information request of an originating exchange according to a call connection request of the calling subscriber;
And provides the acquired roaming information to the originating exchange to derive call connection using an ISDN (ISDN User Part) protocol for the called subscriber, and to collect call release cause information according to call connection failure from the originating exchange A processor; And
A service request unit for requesting transmission of a short message including the call release cause information and local time information for the called subscriber,
The location registration apparatus comprising: The method of claim 3,
The information processing unit,
(CSI) including the roaming information defined to receive the call release cause information according to a request for location information of the call switching apparatus. 5. The method of claim 4,
The information processing unit,
And receives the call release cause information through a CAM application protocol (Trigger) from the call switching apparatus. The method of claim 3,
Wherein the short message further includes identification information of the calling subscriber. A subscriber information acquisition unit for acquiring roaming information on an outbound roaming subscriber through interworking with a roaming service support network in response to a location information request of an originating exchange according to a call connection request of the calling subscriber;
To provide the acquired roaming information to the originating exchange so as to be notified of the call release cause information according to a predefined manner according to the type of the communication network in which the originating exchange is located, and to use the ISDN User Part An information processing unit for guiding a call connection and collecting the call release cause information according to call connection failure from the call switching apparatus; And
And a service request unit for requesting transmission of a short message including the call release cause information and the local time information for the called subscriber. 8. The method of claim 7,
The information processing unit,
And provides Camer subscriber information (Termination-CSI) including the roaming information according to a location information request of the originating exchange. 9. The method of claim 8,
The information processing unit,
And receives the call release cause information from the originating exchange through a CAM application protocol (CAP) trigger method. 8. The method of claim 7,
Wherein the short message further includes identification information of the calling subscriber. delete delete delete delete delete delete An information request receiving step of receiving a location information request of an originating exchange according to a call connection request of a calling subscriber;
A roaming information acquisition step of acquiring roaming information on an outbound roaming incoming subscriber through interworking with a roaming service support network;
An information providing step of providing the acquired roaming information to the originating exchange so as to induce a call connection using an ISDN (ISDN User Part) protocol for the called subscriber;
An information collection step of collecting call release cause information according to call connection failure from the call switching apparatus; And
And a service request step of requesting transmission of a short message including the call release cause information and local time information for the called subscriber to the roaming subscriber. 18. The method of claim 17,
The information providing step may include:
And provides Camer subscriber information (Termination-CSI) including the roaming information defined to receive the call release cause information according to a location information request of the originating exchange, . 19. The method of claim 18,
The information collecting step includes:
And receives the call release cause information from the caller exchange through a CAM Application Protocol (CAP) trigger. 18. The method of claim 17,
Wherein the short message further includes identification information of the calling subscriber. An information request receiving step of receiving a location information request of an originating exchange according to a call connection request of a calling subscriber;
A roaming information acquisition step of acquiring roaming information on an outbound roaming incoming subscriber through interworking with a roaming service support network;
To provide the acquired roaming information to the originating exchange so as to be notified of the call release cause information according to a predefined manner according to the type of the communication network in which the originating exchange is located, and to use the ISDN User Part An information providing step of guiding a call connection;
An information collection step of collecting call release cause information according to call connection failure from the call switching apparatus; And
And a service request step of requesting transmission of a short message including the call release cause information and local time information for the called subscriber to the roaming subscriber. 22. The method of claim 21,
The information providing step may include:
And providing Camer subscriber information (Termination-CSI) including the roaming information according to a request for location information of the originating exchange. 23. The method of claim 22,
The information collecting step includes:
And the call release cause information is received from the caller exchange device through a CAM application protocol (CAP) trigger method. 22. The method of claim 21,
Wherein the short message further includes identification information of the calling subscriber.

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