KR20040086669A - Service System And Method For Completion Of Calls In Mobile Communication Network - Google Patents

Abstract

PURPOSE: A call complete service system in a mobile communication network and a method therefor are provided to automatically reattempt a call from a communication network with regards to an incompletely processed call. CONSTITUTION: An originating exchange(10a) transmits originator information and receiver information incompletely processed in a mobile communication network, requests a call complete service, and informs of a checked originator state. A receiving exchange(10b) informs the originating exchange(10a) of a cause of an incomplete call, and informs of a checked receiver state. An HLR(15) supplies an information management function and a routing function to the originating/receiving exchanges(10a,10b). An incomplete call processing device(20) activates the call complete service for a specific originator, reattempts the incompletely processed call, and supports the call complete service to enable the call.

Description

Service System And Method For Completion Of Calls In Mobile Communication Network

The present invention relates to a call completion service in a mobile communication network, and in particular, a called party can make a call between two parties by automatically retrying and connecting a call from a network side to a call that has not been processed due to a busy or unanswered call. And a call completion service system and method in a mobile communication network.

The role of a general communication system is to detect an incoming signal from a caller, and then connect the called party corresponding to the incoming signal with a call path so that a call can be made between the two parties. As various additional services are developed, more various services are provided to subscribers. Doing.

For example, if the called party is busy and cannot answer the call, the corresponding call is connected to a voice mail system or a short message center to provide a mailbox service to leave voice or text, or to another preset call forwarding number. A call forwarding service for forwarding calls is provided.

That is, in the conventional communication system, when the caller calls the called party but fails to connect the call with the called party's terminal due to various reasons, the call is sent to the called party's forwarding number, voice mail system, or short message center. It provides incomplete call processing services that rely on supplementary services on the receiver side such as connection. Here, the incomplete call refers to a case in which the called party is not connected to the called party due to the location of the called terminal in the shadowed area or the power off state, or during a call, missed, call forwarding, rejection, or voicemail connection.

However, the additional services for the incomplete call processing when the called party is in a call are services that consider only the called party's side of the call, not the caller who wants the actual call. There is a problem in that it is not possible to make a direct call. Therefore, in order to make a direct call with the called party, there is an inconvenience of repeatedly calling the called party in a state in which the current caller of the corresponding called party may be terminated. There was a problem that system resources are wasted.

The present invention has been made to solve the problems described above, and its object is to periodically or randomly send a call to the calling party and the called party without having to leave voice or text in a separate system for the call that is incompletely processed in the mobile communication network. By retrying, the present invention provides a call completion service that enables a direct call between an incomplete call originator and a called party.

In addition, another object of the present invention, by providing a call completion service that allows a direct call between the caller and the called party incomplete call processing in the incomplete call processing device interworking with the mobile communication network, the incomplete call processing from the first caller position To make a repeated call to a called party or to automatically connect a call between the calling party and the called party according to the appropriate call completion service without having to call the original calling party directly for the incomplete call from the called party. To make it possible.

1 is a schematic diagram of a mobile communication network provided with a call completion service according to the present invention;

2 is a diagram illustrating a signal message processing procedure for explaining a call completion service operation in a mobile communication network according to the present invention.

3 is a flowchart illustrating a call completion service operation based on the signaling message processing procedure of FIG.

Explanation of symbols on the main parts of the drawings

10a: calling side exchange 10b: called side exchange

15: home location register 20: incomplete call processing device

30: ARS device 40: content providing device

A feature of the present invention for solving the object as described above, the calling party to send a caller information and caller information processed incomplete call in the mobile communication network to request a call completion service, and check and notify the corresponding caller status to notify Exchanger; A called-side exchanger which notifies the originating exchange to the reason for the incomplete call processing, and checks and informs the state of the called party; A home location register for providing information management function on whether to subscribe to a call completion service and routing to the calling and destination exchanges to provide call completion services for incomplete calls; Activate the call completion service for a specific caller according to the request of the calling exchange, and retry an incomplete call through the calling exchange and the called exchange where the caller and the called party targeted for the call completion service are located. The present invention provides a call completion service system in a mobile communication network including an incomplete call processing device supporting a call completion service to enable a call.

Another aspect of the present invention provides a mobile communication network comprising: an originating exchange that checks and informs a caller state of an incomplete call processing in a mobile communication network; A called-side exchanger for notifying the calling exchanger of the reason for the incomplete call processing, transmitting the incomplete caller information and the called party information to request a call completion service, and checking and notifying the corresponding called party status; A home location register for providing information management function on whether to subscribe to a call completion service and routing to the calling and destination exchanges to provide call completion services for incomplete calls; Activate the call completion service for a specific caller according to the request of the called party exchange, retry an incomplete call through the calling party exchange and the called party exchange where the caller and the called party targeted for the call completion service are located. The present invention provides a call completion service system in a mobile communication network including an incomplete call processing device supporting a call completion service to enable a call.

Here, the incomplete call processing device, characterized in that the call setting information is transmitted through the home location register using the caller information and the called party information received when the call completion service request.

In addition, the incomplete call processing device is characterized in that the incoming call completion process to perform a call to each other by connecting the call path when both the caller and the called party answer the incoming call after retrying the incomplete processing.

Another feature of the present invention is to determine whether an incomplete call is processed after attempting a call by calling a corresponding called party terminal when a call is generated from any caller; Requesting a call completion service by transmitting the corresponding caller information and the called party information to the incomplete call processing device when the incomplete call is processed; After receiving the call setup information by using the caller information and the called party information in the incomplete call processing device provides a call completion service method in a mobile communication network comprising the step of providing a call service by calling the corresponding caller and the called party It is.

And, the process of requesting the call completion service, if the incomplete call is handled without a call with the called party, the destination exchange includes the step of transmitting the incomplete call processing reason to the source exchange to release the call resources; It is done.

In addition, the process of re-calling the caller and the called party to provide a call service, the step of receiving the call setting information from the calling exchange to the caller terminal by requesting the location information for the caller to the home location register using the caller information; Wow; Receiving call setting information from the called party exchange to the called party terminal by requesting the location information of the called party to the home location register using the called party information; Generating a call with the originating exchange and the called exchange and confirming that the incoming call is answered after the calling party and the called party are recalled; When both the caller and the called party answer the incoming call, it characterized in that it comprises the step of providing a call service by connecting the call path with the calling exchange and the called exchange.

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

In the present invention, if the caller and the called party do not make a call in the mobile communication network is incomplete call processing by inactivating the call completion service in the incomplete call processing device after checking the caller and the caller available state automatically calls between the caller and the called party The service is provided so that the user can make a call again. A schematic configuration of a mobile communication network provided with such a call completion service is shown in FIG. 1.

That is, the call completion service system according to the present invention, as shown in Figure 1, separate from the Mobile Switching Center (MSC) (10a, 10b) including a Visitor Location Register (VLR), Located between a Home Location Register (HLR) 15 that stores subscriber information with a computer, a Base Station Transceiver Subsystem (BTS) that handles wireless access, and mobile switching stations 10a, 10b and the base station. It is based on the configuration of a mobile communication network where a base station controller (BSC) for controlling and managing a plurality of base stations and a mobile station (Mobile Station (MS or mobile subscriber)) interoperate with each other. The incomplete call processing apparatus 20 is configured to interwork with the mobile switching centers 10a and 10b and the home location register 15 through a communication network. In FIG. 1, each component of the mobile communication network is for convenience of description. For and in connection with the progress to / incoming call is shown by each separated by the calling party and the called party.

Here, the network device for implementing the call completion service according to an embodiment of the present invention will be described in more detail, the home location register 15 is an information management function and whether the call completion service subscription, and incomplete call processing At the request of the device 20, it provides a routing function to the originating / receiving side exchanges 10a, 10b to provide call completion services.

The originating exchange 10a transmits the caller and the called party information on the incomplete call to the incomplete call processing device 20 to request a call completion service, and checks the corresponding caller state to complete the call if it is in a possible state. The call processing device 20 is notified, and the called side exchange 10b notifies the calling side exchange 10a of the reason for the incomplete call processing, and checks the corresponding called party state if the call is in an incomplete state. The call processing device 20 is notified.

The incomplete call processing device 20 activates a call completion service for a specific caller or a called party according to a request of the calling side exchange 10a, and uses the caller and the called party information on the incomplete call to make a call. It supports call completion services that enable call between each other by establishing a call by connecting call exchangers 10a and 10b at which a called party is located. To this end, call setting information is received from the originating exchange 10a and the destination exchange 10b through the home location register 15 using the caller and the called party information received when the call completion service is requested from the originating exchange 10a. It performs the function.

In addition, in the present invention, the incomplete call processing device 20 is interlocked with external devices in connection with a call completion service, and the ARS for providing a management function of a call completion service through a terminal as an external device to be interlocked. Device 30 and a content supply device 40 for providing a management function of a call completion service through the Internet.

The operation of performing call completion service in a mobile communication network according to an embodiment of the present invention based on the above-described configuration will be described in detail with reference to FIGS. 2 and 3 as follows.

First, in order to receive the aforementioned call completion service, the call completion service provided by the mobile communication service provider must be subscribed. Information on whether the call completion service is subscribed is managed by the home location register 15 as in the prior art.

In the state of being subscribed to the call completion service as described above, the calling side exchange 10a checks whether an outgoing call is generated from the caller as an arbitrary caller attempts to make a call by dialing any called party's telephone number using his or her communication terminal. (Step S51), when the originating call occurs, the location request message (LOCREQ; LOCation REQuest message) is transmitted to the home location register 15 to request location information for the called party.

Accordingly, the home location register 15 receiving the location request message transmits a routing request message (ROUTREQ; ROUTREQ REQUEST message) to the destination exchange 10b, and the destination exchange 10b responds to the routing request. Incoming information (TLDN) for call setup to the called party's terminal is transmitted to the home location register 15 using a routing response message.

The home location register 15 receiving the routing response message transmits the incoming information received from the corresponding destination exchange 10b in response to the location request of the source exchange 10a. A location response message (locrsp) is used to transmit to the originating exchange 10a.

Then, the originating exchange 10a transmits an IAM (Initial Address Message) message to the called side exchange 10b to request call setup to the called terminal, and the called side exchange 10b receiving the corresponding IAM message. The ACM generates one call with the originating exchange 10a by sending an address complete message (ACM) message to the originating exchange 10a.

Then, the called party exchange 10b allocates radio resources according to a predetermined call processing procedure and attempts to make a call by calling the called party's terminal through the base station controller and the base station (step S52). If the call is not answered (no answer), or if the call is not made with the called party due to the shadow area or the like, it is checked whether the incomplete call is processed (step S53).

If the incoming call is not completed in response to the call and the incoming call is normally completed, the call processing is performed so that the caller and the called party can connect the call (step S60), but the call is not made. If an incomplete call is handled without being received, a release request message (REL; RELEase message) is transmitted to the originating exchange 10a to request the release of the call resource. In this case, the reason for the incomplete call processing is included in the release request message. It transmits to the calling exchange 10a.

Accordingly, the source exchange 10a releases the call resource with the destination exchange 10b by sending a Release Complete message (RLC) to the destination exchange 10b (step S54). Through 15, the subscriber information about the corresponding caller is searched to check whether the user is subscribed to the call completion service (step S55). If the user is not subscribed to the call completion service, the corresponding incomplete call is terminated. Done.

However, when the caller is subscribed to the call completion service, the call completion service is requested by transmitting an incoming call completion request message including the caller information and the called party information on the corresponding incomplete call to the incomplete call processing device 20. (Step S56).

Accordingly, the incomplete call processing apparatus 20 activates the call completion service for the corresponding caller according to the call completion service request of the originating exchange 10a, and then periodically or randomly calls for the corresponding incomplete call. Completion service processing is performed to allow a call between the original caller and the called party.

That is, the incomplete call processing apparatus 20 receives the call setting information to the calling party terminal and the called party terminal by using the calling party information and the called party information transmitted in the call completion service request from the calling side exchange 10a. The location request message (LOCREQ) is transmitted to the home location register 15 to request the location information of the caller necessary for the call setup to the calling party terminal side, and the home location register 15 is routed to the calling side exchange 10a. In response to the request message (ROUTREQ), a call forwarding information (TLDN) for setting up a call, that is, a routing response message (routrsp) including the call setting information to the calling party terminal side is received, and the corresponding call setting information is received. Incomplete in the incomplete call processing device 20 by transmitting the location information to the requested incomplete call processing device 20 included in the location response message (locrsp) Receive transmit information necessary for call set-up toward the terminal (step S57-1).

Similarly, the incomplete call processing device 20 transmits a location request message (LOCREQ) to the home location register 15 to request location information on the called party necessary for call setup to the called party's terminal, and the home location register. 15, the routing response message ROUTREQ is transmitted to the destination side exchange 10b and the routing response message (TLDN) for setting up the call, that is, the routing response message (routrsp) including the call setup information to the called party terminal side in response thereto. ), The call setting information is included in the location response message (locrsp) and transmitted to the incomplete call processing device 20 requesting the location information, thereby making a call from the incomplete call processing device 20 to the called party's terminal. Information necessary for setting is received (step S57-2).

In addition, the incomplete call processing device 20, as described above, after receiving the information necessary for call setup to the terminal side that is the target of the call completion service for the incomplete call is set up a call with the corresponding originating exchange (10a) In order to transmit the IAM message, and the originating exchange 10a receiving the IAM message transmits the ACM message to the incomplete call processing device 20, the originating exchange 10a and the incomplete call processing device 20. One call is generated (step S58-1), and similarly, the destination exchange 10b also transmits an IAM message for call setup, and the destination exchange 10b receiving the IAM message receives an ACM message. By transmitting to the incomplete call processing device 20, one call is generated between the destination side exchange 10b and the incomplete call processing device 20 (step S58-2).

Thereafter, the incomplete call processing apparatus 20 checks whether an ANM (Answer Message) message indicating an incoming response is received from the calling exchange 10a and the receiving exchange 10b, that is, whether the calling party and the called party respond to the incoming call. It waits until it receives an ANM message from both the originating and receiving side exchanges 10a and 10b (step S59).

At this time, if the ANM message is received from only one side exchange or the ANM message is not received from any exchange until the incoming call response waiting time to the calling party terminal and the called party terminal has elapsed, the corresponding call is released and a certain time is elapsed. After the elapsed time, the call setup to the terminal, which is the target of call completion service for the incomplete call, is retried.

In addition, when an ANM message is received from both the caller / receiver side exchanges 10a and 10b before the call waiting time for the caller terminal and the caller terminal elapses, that is, when both the caller and the called party answer the call By making a call by connecting a call path through the source exchange 10a and the destination exchange 10b, a call completion service for an incomplete call is provided (step S60).

Meanwhile, in another embodiment of the present invention, by requesting a call completion service from the called side exchange 10b, a call completion service may be provided to a called party for an incomplete call, and a call according to another embodiment of the present invention Since the schematic configuration of the mobile communication network to which the completion service is applied is the same as that of FIG. 1, the network device for implementing the call completion service will be described with reference to the home location register 15, as in the above-described embodiment. It provides an information management function of whether to subscribe to a service and a routing function to the calling / calling side exchanges 10a and 10b for providing a call completion service at the request of the incomplete call processing device 20.

Then, the calling side exchange 10a checks the caller state of the call completion service and notifies the incomplete call processing apparatus 20 when the call is available, and the called side exchange 10b processes the incomplete call. Inform the originating exchange 10a, transmit the calling party and the called party information about the incomplete call to the incomplete call processing device 20 and request a call completion service, and check the corresponding called party status to make a call. If the state is notified to the incomplete call processing device 20.

The incomplete call processing device 20 activates a call completion service for a specific caller or a called party according to a request of the called party exchange 10b, and uses the caller and the called party information on the incomplete call to make a call. It supports call completion services that enable call between each other by establishing a call by connecting call exchangers 10a and 10b at which a called party is located. To this end, the call setting information is received through the home location register 15 using the calling party and the called party information received when the call completion service request is received from the called side exchange 10b.

Call completion service performing operation in the mobile communication network according to another embodiment of the present invention based on the configuration as described above is performed in a similar procedure to Figures 2 and 3 attached, except that in Figure 2 Although it is shown in Figure 10a to request the call completion service to the incomplete call processing device 20, in another embodiment of the present invention incomplete call processing device in the destination side exchange (10b) rather than the originating exchange 10a. The call completion service is requested at 20.

Hereinafter, a call completion service performing operation according to another embodiment of the present invention will be described with reference to a part different from the above-described embodiment of the present invention.

First, in order to receive a call completion service, a call completion service provided by a mobile communication service provider must be subscribed. Information on whether to subscribe to the call completion service is managed by the home location register 15 as in the prior art.

As described above, if any caller attempts to make a call by dialing any called party's telephone number in the state of being subscribed to the call completion service, the calling party exchange 10a, the home location register 15, and the called party exchange 10b In interworking with each other, the base station controller and the base station call the called party terminal to attempt a call. In this case, when the call is not made and the incomplete call is processed, the called side exchange 10b sends a release request message REL. By transmitting to the side exchange 10a, the release of the call resource is requested. In this case, the reason for the incomplete call processing is included in the release request message and transmitted to the originating exchange 10a.

Therefore, the source exchange 10a releases a call resource with the destination exchange 10b by transmitting a Release Complete message (RLC) to the destination exchange 10b, where the destination exchange 10b is released. Through the home location register 15, the subscriber information about the currently incomplete call recipient is searched to check whether the user is subscribed to the call completion service.

In addition, when the called party is subscribed to the call completion service, the call completion request message including the caller information and the called party information on the corresponding incomplete call is transmitted to the incomplete call processing device 20 to request the call completion service. The incomplete call processing device 20 activates a call completion service for the called party according to the call completion service request of the called party exchange 10b, and then periodically or randomly completes the call completion service for the corresponding incomplete call. The processing is performed to allow a call between the original caller and the called party.

That is, the incomplete call processing apparatus 20 receives the call setting information to the calling party terminal and the called party terminal by using the calling party information and the called party information transmitted in the call completion service request from the called side exchange 10b. After receiving the IAM message is transmitted to the corresponding source exchange (10a) and the destination exchange (20b), and receives an ACM message in response to create a call for the call completion service.

Thereafter, the incomplete call processing apparatus 20 receives an ANM message indicating an incoming response from both the source exchanger 10a and the destination exchange 10b, that is, when both the originator and the recipient answer the incoming call, By making a call by connecting a call path through the corresponding calling party exchange 10a and the called party exchange 10b, a call completion service for an incomplete call is provided.

Meanwhile, in the above-described embodiment, in order to set up a call by connecting the calling side exchange 10a and the called side exchange 10b to process a call completion service for an incomplete call, in FIG. Although it is shown that the call is first set up for the call and then the call is set up for the called side exchange 10b, this call setup operation is simultaneously performed or called for the calling side exchange 10a and the called side exchange 10b. A call may be preferentially set up for the side exchange 10b.

However, in order to finally connect the call path, when an ANM message is received from both the caller / receiver side exchanges 10a and 10b, that is, both the caller and the called party must answer the incoming call. It is possible to make a call between the called party and the called party.

In addition, the embodiment according to the present invention is not limited to the above-mentioned, and can be implemented by various alternatives, modifications, and changes within the scope apparent to those skilled in the art.

As described above, according to the present invention, a caller who has completed an incomplete call process by retrying the call to the calling party and the called party periodically or randomly without having to leave voice or text in a separate system for the call that is incompletely processed in the mobile communication network. It is possible to provide a call completion service to enable direct call between the called party and the called party.

In addition, the present invention provides a call completion service that allows a direct call between the incomplete call processing and the called party in the incomplete call processing device interworking with the mobile communication network, for the incomplete call processing from the first caller position It is possible to automatically connect and make a call between the caller and the called party according to the appropriate call completion service without performing the repetitive recall or calling the original caller directly for the incomplete call from the called party. .

Claims (7)

An originating exchange that transmits the caller information and the called party information processed by the incomplete call in the mobile communication network to request a call completion service, and checks and informs the corresponding caller status; A called-side exchanger which notifies the originating exchange to the reason for the incomplete call processing, and checks and informs the state of the called party; A home location register for providing information management function on whether to subscribe to a call completion service and routing to the calling and destination exchanges to provide call completion services for incomplete calls; Activate the call completion service for a specific caller according to the request of the calling exchange, and retry an incomplete call through the calling exchange and the called exchange where the caller and the called party targeted for the call completion service are located. A call completion service system in a mobile communication network, comprising: an incomplete call processing device supporting a call completion service to enable a call. An originating exchange that checks and notifies a caller state of incomplete call processing in a mobile communication network; A called-side exchanger for notifying the calling exchanger of the reason for the incomplete call processing, transmitting the incomplete caller information and the called party information to request a call completion service, and checking and notifying the corresponding called party status; A home location register for providing information management function on whether to subscribe to a call completion service and routing to the calling and destination exchanges to provide call completion services for incomplete calls; Activate the call completion service for a specific caller according to the request of the called party exchange, and retry an incomplete call through the calling party exchange and the called party exchange where the caller and the called party targeted for the call completion service are located. A call completion service system in a mobile communication network, comprising: an incomplete call processing device supporting a call completion service to enable a call. The method according to claim 1 or 2, The incomplete call processing device is a call completion service system in a mobile communication network, characterized in that for receiving the call setup information through the home location register using the caller information and the called party information received when the call completion service request. The method according to claim 1 or 2, In the mobile communication network, the incomplete call processing device performs the incoming call completion processing so that the caller and the called party answer each incoming call after retrying the incomplete call, thereby making a call possible with each other. Call completion service system. When a call is generated from any caller, calling a corresponding called party terminal to check whether an incomplete call is processed after attempting a call; Requesting a call completion service by transmitting the corresponding caller information and the called party information to the incomplete call processing device when the incomplete call is processed; Completing a call in the mobile communication network comprising the step of providing a call service by calling the corresponding caller and the called party after receiving the call setup information by using the caller information and the called party information in the incomplete call processing device Service method. The method of claim 5, The process of requesting the call completion service may include the step of releasing the call resource by transmitting the incomplete call processing reason from the called exchange to the calling exchange when the incomplete call is processed without being able to talk to the called party. Call completion service method in a mobile communication network. The method of claim 5, Recalling the caller and the called party to provide a call service, the method comprising the steps of: receiving call setting information from the calling exchange to the calling party terminal by requesting location information of the calling party to a home location register using the calling party information; Receiving call setting information from the called party exchange to the called party terminal by requesting the location information of the called party to the home location register using the called party information; Generating a call with the originating exchange and the called exchange and confirming that the incoming call is answered after the calling party and the called party are recalled; And when both the caller and the called party answer the incoming call, connecting a call path between the calling exchange and the called exchange to provide a call service.