KR20050017986A - Method for Reporting Terminating Terminal Status in Mobile Communication System - Google Patents

Abstract

PURPOSE: A method for informing of a receiving terminal state in a mobile communication system is provided to monitor a state of a receiving terminal if a caller fails a call, and to inform the caller that the receiving terminal is capable of receiving the call, thereby minimizing unnecessary usage of network resources. CONSTITUTION: When an originating-side MSC transmits a registration recognize message(S101), an HLR sends a registration recognize confirm message to the originating-side MSC(S102). The originating-side MSC temporarily stores CCS(Call Completion Service)(S103). The originating-side MSC transmits a receiving position request message(S104). A receiving-side HLR recognizes a power-off state of a receiving terminal(S105), and transmits a CCS request message(S106). The receiving-side HLR receives a response to the request(S107), and sends a response message(S108). The receiving-side HLR monitors whether the receiving terminal is capable of receiving a call(S109). If a position registration is carried out(S110), the receiving-side HLR reports to a CCS server that the power-off state is changed into a power-on state(S111). The CCS server transmits a short message to an originating terminal(S112).

Description

{Method for Reporting Terminating Terminal Status in Mobile Communication System}

The present invention relates to a status notification method of a called terminal in a mobile communication system. More particularly, the present invention relates to a service method of monitoring a state of a called terminal when a caller fails to notify a caller when the called terminal becomes a callable state. It is about.

Conventionally, when a caller attempts to call a called party and the terminal of the called subscriber is powered off or busy, most callers continuously try to call again after a certain time to check the state of the called terminal, or basically In this case, the voice mail service or the call memo service provided for the case where the called party fails to receive a call in the mobile network is used.

However, the caller has the inconvenience of sending a voice message or a call number or a text message to the called terminal and manually waiting for the called party to confirm the call.

Therefore, in order to solve this disadvantage, when a caller attempts a call and the called terminal is in a power-off state or is busy, various methods for monitoring the state of the called terminal and informing the caller when the called terminal becomes available are patented. Has been filed.

As a conventionally disclosed patent, "callable notification method" of Patent Publication No. 2000-0037833, when a call attempted by the calling terminal to the called terminal fails, the calling terminal guides the notification service as an additional service of the voice mailbox to the calling terminal. It is possible to apply by entering the number of, and when the called terminal is in a call state is notified to the calling terminal, which is a disadvantage that the caller must apply for the service according to his or her number input and voice guidance whenever the call fails There is this.

And, "Receivable state notification service method and apparatus" of Patent Publication No. 2001-0068140, the caller enters a special character or a specific application number and the telephone number and service time of the called terminal to know the callable state of the called terminal When transmitting, when the called terminal becomes available during the corresponding service time, it is notified to the calling terminal, which not only requires the caller to separately apply for and terminate the service, but also sets the phone number and service time of the called terminal. There is a hassle to enter.

As described above, the conventional state notification method of the called terminal is unrealistic, excessively wastes system resources, and may cause serious confusion in the network.

Accordingly, the present invention is to solve the above disadvantages and problems of the prior art, and to provide a method for status notification of the called terminal to minimize the waste of resources of the network and to prevent collisions with additional services related to the existing call connection. It is an object of the present invention to provide.

The above object of the present invention is a base station, an exchange performing call exchange between a calling terminal and a called terminal, a short message service center providing a short message service to the mobile communication terminal, and a CCS for notifying a calling state of a called terminal to a calling terminal. A subscriber may be connected to the home location register and a short message service center of a mobile communication system configured to include a home location register that manages subscriber additional service information including service information and performs location registration of a mobile communication terminal. A method for notifying of a callable state of a called terminal in a system including a CCS server in charge of service control for notifying a call to a calling terminal, the home location register storing announcement code information for each called state; The register passes through the exchange from the originating terminal Receiving a registration recognition message for registration of a solution location, transmitting a registration recognition confirmation message including CCS service information of the calling terminal subscriber to the exchange, and the exchange storing the CCS service information of the subscriber; When the call is attempted from the originating terminal that performed the location registration to the called terminal, transmitting the called location request message including the stored CCS service information to the called party's home location register by the calling exchange; A third step of requesting a service by transmitting status information of the called terminal to the CCS server when the called home location register checks the location registration information of the called terminal to confirm that the called terminal is in a power-off state; When the called party's home location register receives the response to the service request from the CCS server, in response to the called location request to the calling exchange, the exchange transmits the announcement code information for the CCS service. Transmitting a announcement corresponding to a announcement code to the calling terminal; The terminating home location register monitors whether the terminating terminal performs power on location registration, and reports the state change of the terminating terminal to the CCS server when the terminating terminal performs power on location registration and becomes available to make a call; Step 5; And a sixth step of transmitting, by the CCS server, the short message including the state change information of the received terminal to the calling terminal through the short message service center. .

In addition, the above object of the present invention is a base station, an exchange for performing a call exchange between the calling terminal and the called terminal, a short message service center for providing a short message service to the mobile communication terminal, notification of the callable state of the called terminal to the calling terminal A subscriber station connected to the home location register and a short message service center of a mobile communication system configured to include a home location register that manages subscriber additional service information including CCS service information and performs location registration of the mobile communication terminal. A method for notifying of a call availability state of a called terminal in a system including a CCS server in charge of service control for notifying a call availability state to a calling terminal, wherein the home location register stores announcement code information for each call state; Home location register from the calling terminal to the exchange Upon receiving a registration message for registering the location recognition by sending a registration confirmation message recognition comprising the CCS service information of the calling terminal subscriber to the MSC, and a first step of the exchange store the CCS service information of the subscriber; A second step of transmitting, by the exchange, a called location request message including the stored CCS service information to the called party's home location register when a call is attempted from the originating terminal that has performed the location registration to the called terminal; As the called party home location register receives the route information from the called exchange, and transmits a response message for the called location request to the calling exchange, including the received route information, the calling exchange is connected to the route information. A third step of establishing a call with the called exchange and transmitting a paging signal to the called terminal; At this time, when the called side exchange recognizes that the called terminal is active and the call waiting service is active, the called side exchange transmits the status information of the called terminal to the called home position register, and the called home position Registering, by the register, requesting CCS service by transmitting status information of the called terminal to the CCS server; When the called party's home location register receives a response to the service request from the CCS server, the called party exchange transmits announcement code information about the CCS service to the called party's exchange, and the called party's exchange corresponds to the corresponding announcement code. A fifth step of transmitting the announcement to the calling terminal; As the called party home location register requests a report of the state change of the called terminal to the called side exchange, the called side switch exchanges the state change of the called terminal to the called party home location register when the called terminal becomes available. A sixth step of reporting; When the called party's home location register receives the state change report, releasing a request for the state change report of the called terminal to the called side exchange, and reporting the state change of the called terminal to the CCS server; And an eighth step of transmitting, by the CCS server, a short message including state change information of the received called terminal through the short message service center to the calling terminal which attempted the call. Is achieved.

Details of the above objects and technical configurations of the present invention and the effects thereof will be more clearly understood by the following detailed description based on the drawings showing the preferred embodiments of the present invention.

First, Figure 1 is a block diagram of a mobile communication system for explaining the present invention.

As shown, the mobile communication system for a called terminal status notification service (CCS service) of the present invention is a base station 110 in charge of wireless section communication with the calling party and the called mobile communication terminal (100, 200) , 210, BTS), the base station controller 120, 220, BSC to control the base station, the switch 130 (MSC) for performing a call exchange between the calling terminal 100 and the called terminal 200, additional service of the subscriber A home location register 140 (HLR) that manages information, and a short message service center 150 (SMSC) that provides a short message service.

The mobile communication system further includes a CCS server 300 that is connected to the home location register 140 and the short message service center 150 and is responsible for service control for notifying the calling terminal of the available state of the called terminal.

In the present invention, when the CCS server 300 notifies the calling terminal 100 of the status of the called terminal 200, when the called terminal 200 is in the power-off state, when the call is busy, the call waiting service subscriber and no response. Includes the case.

In addition, the CCS server 300 stores CCS service setting information for each subscriber such as called number information, CCS operation time information, and notification time information for driving the CCS service as CCS service setting information.

In more detail, the called number information allows a service subscriber to set a called number for driving a service, so that a service subscriber can drive a service only for the set called number without driving a service for all called numbers. Say that.

In addition, the CCS operation time information is to be driven only when the subscriber sets, i.e., on weekdays, at all times when the call is attempted, or only during business hours from 09:00 to 18:00.

In addition, the notification time information, when the calling subscriber attempts to call a specific destination number and the call is not connected, the notification terminal state is notified only within 1 hour from the time when the call is attempted, or only within 1 day from the time when the call is attempted. To receive it.

Accordingly, the CCS server 300 stores information such as called number information, CCS operation time information, and notification time information for each subscriber, and receives a service request message from the home location register 140 for the subscriber. The setting information is transmitted to the home location register 140 so that individual service can be performed according to the information set by the subscriber.

On the other hand, the home location register 140 performs location registration of the mobile communication terminal (100, 200), and manages the subscriber additional service information including CCS service information for notifying the calling terminal of the available state of the called terminal; If the called terminal is unable to make a call, the call state information announcement code database 141 for storing code information about the announcement for providing to the calling terminal is provided.

In the mobile communication system as described above, a state notification method of the called terminal is schematically described. When the calling terminal 100 attempts to call the called terminal 200, the called home location register calls the called terminal 200. In order to set, grasp the current state of the called terminal 200.

If the called terminal 200 is currently in the power-off state, the called party home location register 140 may determine this as the called terminal 200 performs the power off location registration through the called party home location register 140. Otherwise, it may be determined by receiving the state information of the called terminal from the called side exchange 130 as requesting the route information to the called side exchange 130.

As described above, when the called terminal 200 is unable to make a call, the home location register 140 requests the CCS service to the CCS server 300 and transmits the CCS guidement code to the calling exchange 130 to the called terminal. CCS service announcements will be sent according to.

As said, "The power is off. We will notify you as soon as the power is on." Or, "I am on a call, and I will notify you when the call ends." Etc., the home location register 140 stores the identification code information for each announcement as described above, and transmits the corresponding code to the exchange 130 according to the state of the called terminal. The announcement corresponding to the received code is sent to the calling terminal (100).

Subsequently, the home location register 140 monitors the state of the called terminal 200 and reports it to the CCS server 300 when the call is available, and the CCS server 300 notifies that the called terminal is in a callable state. The short message is transmitted to the calling terminal 100.

On the other hand, since the CCS service, which is the calling subscriber service, may collide with other services of the called subscriber, the home location register 140 should store information on priority with other additional services that may collide with the CCS service. The CCS information of the subscriber and the supplementary service of the called subscriber are compared to operate according to the priority.

As an additional service for the called party that collides with the CCS service, a call forwarding service (CFW), which connects a call to the called terminal to another number designated by the called party, connects the incoming call to a voice mail box, and the caller makes a voice call. Voice Mail Service (VMS), which allows you to leave a message, a service that stores the caller's number if the caller's number is stored when the power is off or when you can't make a call. In-Call Recall Memo Service (CRS).

Priority between the CCS of the present invention and the CFW, VMS, CRS is preferably CFW> CCS> VMS> CRS, the home location register 140 performs the CCS operation according to the priority. That is, if CFW> CCS> VMS> CRS, the home location register 140 transmits the CFW divert number to the exchange when the called subscriber is a CFW service subscriber, so that the exchange performs CFW and the CCS service is not operated. And, if the called subscriber is a VMS or CRS service subscriber, the home location register 140 preferentially operates the CCS service, which is the calling subscriber service.

The state notification method of the called terminal of the present invention as described above will be described below in more detail with reference to FIGS.

2 is a call flow diagram illustrating a state notification method of a called terminal according to the first embodiment of the present invention, and relates to a case where the called terminal is in a power-off state.

As shown, when the calling exchange 130 receives a location registration request from the calling terminal 100, the corresponding exchange 130 transmits a registration recognition message to the home location register 140 (S101). 140 checks the CCS service information of the mobile communication terminal subscriber who requested the location registration, and transmits a registration recognition confirmation message including CCS service information (service availability information and service activation information of the subscriber) to the exchange 130; (S102), the exchange 130 temporarily stores CCS service information for the calling terminal 100 (S103).

Then, when a call is attempted from the originating terminal 100 that has performed the location registration to any called terminal 200, the calling side exchange 130 sends a call to the called home location register 140 with respect to the calling terminal 100. CCS service information, that is, whether or not the originating subscriber is a CCS service user and the destination location request message including the activation information of the current service is transmitted (S104).

At this time, the called party home location register 140 recognizes that the called terminal 200 is in the power-off state due to the fact of registering the power-off position with the called terminal 200 (S105), and returns to the CCS server 300. A CCS service request message including information indicating that the called terminal is in a power off state is transmitted (S106).

On the other hand, the home location register 140 stores priority information (CFW> CCS> VMS> CRS) of additional services so that the CCS service does not collide with other additional services of the called subscriber, so that the called terminal 200 is powered. If it is recognized that it is off (S105), it is determined whether the called party is a subscriber of CFW, VMS, CRS service, which is a supplementary service that may collide with the CCS service, and operates the CCS service according to the priority information (CFW> CCS> VMS> CRS). Decide if

That is, the home location register 140 does not perform the CCS service when the called subscriber is a CFW service subscriber, and if the called subscriber is a VMS or CRS service subscriber, the CCS service should be operated first.

The matters related to the service control according to the above priority will be omitted in the following description because the same applies to FIGS. 3 to 5.

Next, when the CCS service is driven in consideration of the priority as described above, the called party home location register receives the response to the service request from the CCS server 300 (S107), and the calling side exchange 130. Transmits a response message to the called location request (S104) including the CCS announcement code information according to the state of the called terminal (S108), and the source exchange 130 corresponds to the received announcement code; The announcement is sent to the calling terminal 100.

In this case, the CCS server 300 stores CCS service setting information for each subscriber such as called number information, CCS operation time information, and notification time information for driving the CCS service, and when the service is requested from the home location register, the corresponding subscriber. Retrieve service setting information of.

In addition, the CCS server 300 transmits the service setting information together when the response message for the service request is transmitted to the home location register, and causes the service to be performed according to the service setting information in the home location register, or the CCS server. The CCS server 300 may determine whether to perform the service according to the service setting information by comparing the information received when the service request is requested from the home location register with the service setting information, and forward it to the home location register. have.

In the case where the called party information of the service setting information is described as an example, when the service subscriber designates the called party numbers to perform the service, the CCS server 300 receives the called party number information designated by the subscriber when the service is requested from the home location register. Transmit to the registrar, and determine whether the home number register currently attempts the called number to belong to the designated called number to perform the service, and the CCS server 300 currently attempted the called number when the service is requested from the home location register. It is possible to receive the information together, determine whether the received number belongs to the designated destination number of the subscriber, determine whether to perform the service and transmit only the information about whether or not to perform the home location register.

Service control according to the subscriber-specific setting information as described above is the same also applies to Figures 3 to 5 will be omitted below.

On the other hand, according to the transmission of the announcement as described above, the call attempted from the originating terminal 100 is terminated, the called party home location register 140 is that the called terminal 200 is in a callable state, that is, The CCS service is driven by monitoring whether the power is on (S109).

At this time, when the location registration by power-on is performed between the called terminal 200 and the called-side home location register 140 (S110), the called-side home location register 140 is powered off the called terminal 200; Reports to the CCS server 300 that the state has been changed to power on (S111), the CCS server 300 sends a short message to notify the state change of the called terminal through the short message service center 150 the calling terminal ( 100) (S112).

3 is a call flow diagram illustrating a state notification method of a called terminal according to a second embodiment of the present invention, and relates to a case in which the called terminal is in a busy state.

First, a location registration process between a mobile communication terminal and a home location register is divided into a case of a calling terminal and a case of a called terminal for convenience of description. In the case of the calling terminal 100, when the calling exchange 130 transmits a registration recognition message to the calling home location register 140 (S201), the calling home location register 140 sends the calling exchange 130 to the calling side. The registration recognition confirmation message including the CCS service information of the subscriber is transmitted (S202), and the calling side exchange stores the CCS service information of the calling subscriber (S203).

In the case of the called terminal, when the called side exchange 130 transmits a registration recognition message to the called home position register 140 (S201 '), the called home position register 140 transmits trigger information to the called side exchange 130. It transmits a registration recognition confirmation message containing (S202 '). Here, the trigger information is information for which a service should be triggered according to the state of the called terminal, and includes a case where the called terminal is in a busy state (No answer).

That is, when the state of the called terminal to which a call is attempted from any originating terminal is busy or no answer, the called side exchange should transmit the state information of the called terminal to the called home location register according to the trigger information.

Each location registration process of the calling terminal and the called terminal is the same in the embodiments of FIGS. 4 and 5.

On the other hand, as a call is attempted from the originating terminal 100 having performed the location registration to the called terminal 200 as described above, the calling side exchange 130 includes the subscriber's CCS service information to the called side home location register 140. When the destination location request message is transmitted (S204), the called party home location register 140 transmits a path information request message including the CCS service information to the called party exchange 130, and the called party exchange 130 ) Transmits a response message including the called terminal state information indicating that the called terminal 200 is currently in a busy state to the called party's home location register 140 as a response to the route information request (S205).

Next, the called party home location register 140 receives information indicating that the called terminal 200 is busy from the called party exchange 130, requests a service from the CCS server 300, and receives a response ( S206), and transmits a response message to the called location request (S204) including the CCS announcement code information to the calling exchange (130) (S207).

Accordingly, the called party home location register 140 monitors the state of the called terminal 200 to drive the CCS service (S208) and changes the state of the called terminal 200 to the called side exchange 130. It requests to report and receives a response from the destination exchange 130 (S209), and waits for a status change to be reported from the destination exchange 130.

On the other hand, when the called terminal 200 is released from the busy state, the called side exchange 130 reports the state change to the called side home position register 140 (S210), the called side home position register 140 Sees the state change of the called terminal 200 to the called side exchange 130, releases the request, and receives a response (S211).

In addition, when the called party's home location register 140 reports to the CCS server 300 that the called terminal 200 has changed from a busy state to a standby state (Idle) (S212), the CCS server 300 receives the incoming call. The incoming state notification message indicating that the state of the terminal has been changed is transmitted to the calling terminal 100 through the short message service center 150 (S213).

Next, Fig. 4 is a call flow diagram illustrating a status notification method of a called terminal according to a third embodiment of the present invention, which relates to a case where the called terminal is a call waiting service subscriber and is not answering.

Here, the call waiting service is a service that allows the user to receive another call when the user is busy. In the present embodiment, if the called terminal subscribed to the call waiting service is not answering the call attempted by the calling terminal, the call waiting service is called. Describe how to service.

As shown, the location registration process (S301 ~ S303) of the calling terminal 100 and the location registration process (S301 '~ S302') of the destination terminal 200 is the same as in the embodiment of Figure 3 will be omitted.

When a call is attempted from the originating terminal 100 that has performed the location registration to the called terminal 200, the originating exchange 130 is a called location including the CCS service information of the subscriber to the called party home location register 140. The request message is transmitted (S304), and the called party home location register 140 requests the route information from the called party exchange 130, and transmits the CCS service information of the sender in the route information request message.

Next, the called side exchange 130 assigns a Temporary Local Directory Number (TLDN) to the called party's home location register 140 when it is possible to process the call according to the call state and call waiting condition of the called terminal subscriber. Transmit the route information including the (S305), and the destination home location register 140 transmits a response message to the destination location request (S304) containing the TLDN information to the source exchange 130 (S306). ).

According to the above process, when a call is established between the source exchange 130 and the destination side exchange 130, a paging signal is transmitted to the destination terminal 200 through the destination side exchange 130, the destination terminal 200 within a certain time If there is no response from the call, the called party exchange 130 to the called party home location register 140 according to the trigger information received at the initial location registration (CW NA: call waiting, no answer) information and CCS service information. Request to perform an additional service by transmitting (S308). At this time, when the called terminal 200 is a call waiting subscriber and is not answered, it is regarded as being in a call with another terminal.

The called party's home location register 140 transmits a service request message including the state information of the called terminal to the CCS server 300, and receives the response code information when receiving a response to the service request from the CCS server (S309). And transmits the additional service execution request response message to the called side exchange 130 (S310), and drives the CCS service for monitoring the state of the called terminal 200 (S311). In this case, since a call is already established between the called exchange 130 and the calling exchange 130, the announcement according to the announcement code sent to the called exchange 130 is the calling terminal through the calling exchange 130. It is sent to 100.

Next, the called party home location register 140 requests the called party switch 130 to report when the state of the called terminal changes (S312), and the called side exchange 130 receives the called terminal 200. When the call with the other terminal is terminated, the destination side exchange 130 reports it to the destination side home location register (140) (S313).

The called party home location register 140 requests the release of the state change report to the called party exchange 130 to receive a response from the called party exchange 130 (S314), and receives the state change of the called terminal 200 from the CCS server. Report to 300 (S315). The CCS server 300 transmits a call state notification message indicating a change in state of the called terminal to the calling terminal 100 through the short message service center 150 (S316).

Lastly, Fig. 5 is a call flow diagram illustrating a status notification method of a called terminal according to a fourth embodiment of the present invention, which relates to a case where a called collision occurs while the called terminal is in a call waiting service deactivated state. Call collision means that the called terminal is connected to another call during call setup between the calling terminal and the called terminal.

Here, the location registration process (S401 to S403) of the calling terminal and the location registration process (S401 'to S402') of the called terminal are the same as in FIG.

On the other hand, when a call is attempted from the originating terminal 100 that has performed the location registration to the called terminal 200, the calling side exchange 130 requests the called location including the CCS service information of the subscriber to the called side home location register 140. Sending a message (S404), the destination home location register 140 transmits a request message to the destination exchange 130, the route information including the CCS service information of the sender.

Next, the called side exchange 130 assigns a Temporary Local Directory Number (TLDN) to the called party's home location register 140 when it is possible to process the call according to the call state and call waiting condition of the called terminal subscriber. Transmit route information including (S405), and the called party home location register 140 transmits a called location request response message including the TLDN information to the calling side exchange 130 (S406).

At this time, although a call is set up between the calling exchange 130 and the called exchange 130 according to the above process (S408), when a call collision occurs, that is, another call is made with the called exchange 130 before the call is established. When the other call is set between the side exchanges (S407), the destination side exchange 130 transmits the status (Busy) information of the called terminal to the destination side home location register 140 according to the trigger information received at the initial location registration. In step S409, an additional service execution request message including CCS service information of a subscriber is transmitted.

Next, the called party home location register 140 transmits a service request message including the status information of the called terminal to the CCS server 300 and receives a response to the service request from the CCS server (S410). The response message including the information is transmitted to the destination exchange 130 (S411), and the CCS service for monitoring the state of the destination terminal 200 is driven (S412).

Next, the called party home location register 140 requests the called party switch 130 to report when the state of the called terminal changes (S413), and the called side exchange 130 receives the called terminal 200. When the call with the other terminal is terminated, the destination side exchange 130 reports it to the destination side home location register (140) (S414).

The called party home location register 140 requests the release of the state change report to the called party exchange 130 to receive a response from the called party exchange 130 (S415), and sends the state change of the called terminal 200 to the CCS server. Report to 300 (S416). The CCS server 300 transmits an incoming state notification message indicating a change in state of the called terminal to the calling terminal 100 through the short message service center 150 (S417).

Meanwhile, in the present invention, the home location register stores information on the announcement code for each incoming state as an example. However, when the CCS server stores the code information and receives a service request signal from the home location register, the response message is included in the response message. It may be transmitted including the code information.

As those skilled in the art to which the present invention pertains may implement the present invention in other specific forms without changing the technical spirit or essential features, the embodiments described above should be understood as illustrative and not restrictive in all aspects. Should be. The scope of the present invention is shown by the following claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention. do.

Therefore, in the mobile communication system of the present invention, the status notification method of the called terminal not only enables the caller to be actively notified of the status of the called terminal without conflict with an existing additional service provided in the mobile network, and also requires unnecessary use of network resources. There is an effect that is minimized.

1 is a block diagram of a mobile communication system for explaining the present invention;

2 is a call flow diagram illustrating a status notification method of a called terminal according to the first embodiment of the present invention;

3 is a call flow diagram illustrating a status notification method of a called terminal according to a second embodiment of the present invention;

4 is a call flow diagram illustrating a status notification method of a called terminal according to a third embodiment of the present invention;

5 is a call flow diagram illustrating a status notification method of a called terminal according to a fourth embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

100, 200: mobile communication terminal 110, 210: base station (BTS)

120, 220: base station controller (BSC) 130: switchboard (MSC)

140: home location register (HLR)

141: Announcement code database by incoming status

150: short message service center (SMSC) 300: CCS server

Claims (10)

A base station performing wireless section communication with a mobile communication terminal, a switchboard performing call exchange between a calling terminal and a called terminal, a short message service center providing a short message service to the mobile communication terminal, and calling a call state of a called terminal Is connected to the home location register and short message service center of the mobile communication system configured to include a home location register for managing the subscriber added service information including CCS service information to notify the terminal and performs the location registration of the mobile communication terminal Claims [1] A method for notifying of a callable state of a called terminal in a system including a CCS server in charge of service control for notifying a caller of a called terminal to a calling terminal, The home location register stores the announcement code information for each incoming state, When the home location register receives a registration recognition message for location registration from a mobile communication terminal through a switch, the home location register transmits a registration recognition confirmation message including CCS service information of the corresponding mobile communication terminal subscriber to the exchange. A first step of storing CCS service information; When the call is attempted from the originating terminal that performed the location registration to the called terminal, transmitting the called location request message including the stored CCS service information to the called party's home location register by the calling exchange; A third step of requesting a service by transmitting status information of the called terminal to the CCS server when the called home location register checks the location registration information of the called terminal to confirm that the called terminal is in a power-off state; When the called party's home location register receives the response to the service request from the CCS server, in response to the called location request to the calling exchange, the exchange transmits the announcement code information for the CCS service. Transmitting a announcement corresponding to a announcement code to the calling terminal; The terminating home location register monitors whether the terminating terminal performs power on location registration, and reports the state change of the terminating terminal to the CCS server when the terminating terminal performs power on location registration and becomes available to make a call; Step 5; And Transmitting, by the CCS server, a short message including state change information of the received called terminal through the short message service center to the calling terminal; Method of notifying the status of the called terminal in the mobile communication system, characterized in that comprises a. A base station performing wireless section communication with a mobile communication terminal, a switchboard performing call exchange between a calling terminal and a called terminal, a short message service center providing a short message service to the mobile communication terminal, and calling a call state of a called terminal Is connected to the home location register and short message service center of the mobile communication system configured to include a home location register for managing the subscriber added service information including CCS service information to notify the terminal and performs the location registration of the mobile communication terminal Claims [1] A method for notifying of a callable state of a called terminal in a system including a CCS server in charge of service control for notifying a caller of a called terminal to a calling terminal, The home location register stores the announcement code information for each incoming state, When the home location register receives a registration recognition message for location registration from a mobile communication terminal through a switch, the home location register transmits a registration recognition confirmation message including CCS service information of the corresponding mobile communication terminal subscriber to the exchange. A first step of storing CCS service information; When the call is attempted from the originating terminal that performed the location registration to the called terminal, transmitting the called location request message including the stored CCS service information to the called party's home location register by the calling exchange; When the called side exchange determines that the called terminal is currently busy as the called home location register sends the route information request message including the CCS service information to the called side exchange, the called side exchange determines that the called terminal is the other terminal. A route information response message including the called terminal status information indicating that the call is in progress to the called party's home location register, and the called party's home location register transmits the received status information of the received terminal to the CCS server. Requesting a third step; When the called party's home location register receives the response to the service request from the CCS server, when the called party sends the announcement code information about the CCS service to the calling exchange, the calling party receives the response code. A fourth step of the exchange transmitting a announcement corresponding to the announcement comment code to the calling terminal; The called party's home location register requests to report to the called exchange when the state of the called terminal changes to a callable state, and the called party's exchange exchanges the called party's home location register as the call is released between the called terminal and another terminal. A fifth step of reporting a state change of the called terminal; A sixth step in which the called party home location register releases a state change report request to the called side exchange, and reports the state change of the called terminal to the CCS server; And Transmitting, by the CCS server, a short message including state change information of the called terminal to the calling terminal through the short message service center; Method of notifying the status of the called terminal in the mobile communication system, characterized in that comprises a. The method according to claim 1 or 2, The CCS server stores CCS service setting information for each subscriber including called party number information, CCS operation time information, and notification time information for driving the CCS service. After step 3, before step 4, When a service is requested from the called party's home location register, the CCS server retrieves the service setting information for the corresponding calling party and transmits the service setting information to the called party's home location register in the response message for the service request. Doing; The status notification method of the called terminal in the mobile communication system further comprising. The method according to claim 1 or 2, The home location register stores priority information with other additional services that may collide with the CCS service, The third step, Confirming, by the called party's home location register, additional service information of the called party; Determining a priority between the additional service of the called party and the CCS service of the calling party according to the stored priority information; And If the CCS service has a higher priority than the additional service of the called subscriber, transmitting the status information of the called terminal to the CCS server to request a service; Method of notification of the status of the called terminal in a mobile communication system comprising a. The method of claim 4, wherein The CCS service can collide with the CCS service with an incoming call transfer service (CFW) that connects an incoming call to a different number designated by the called party, and the caller can leave a voice message by connecting the incoming call to a voice mailbox. Voice Mail Switching Service (VMS), and Call Memo Service (CRS), a service that notifies the caller's number in a short message when the caller's number is stored when the power is turned off or is not available. ), The priority of each additional service (CFW, VMS, CRS) and CCS service is CFW> CCS> VMS> CRS, the status notification method of the destination terminal in the mobile communication system. A base station performing wireless section communication with a mobile communication terminal, a switchboard performing call exchange between a calling terminal and a called terminal, a short message service center providing a short message service to the mobile communication terminal, and calling a call state of a called terminal Is connected to the home location register and short message service center of the mobile communication system configured to include a home location register for managing the subscriber added service information including CCS service information to notify the terminal and performs the location registration of the mobile communication terminal Claims [1] A method for informing a callable state of a called terminal in a system including a CCS server in charge of service control for notifying a caller of a called terminal to a calling terminal, The home location register stores the announcement code information for each incoming state, When the home location register receives a registration recognition message for location registration from an originating terminal through an exchange, the home location register transmits a registration recognition confirmation message including CCS service information of the calling terminal subscriber to the exchange, and the exchange exchanges the CCS service of the subscriber. A first step of storing information; A second step of transmitting, by the exchange, a called location request message including the stored CCS service information to the called party's home location register when a call is attempted from the originating terminal that has performed the location registration to the called terminal; As the called party home location register receives the route information from the called exchange, and transmits a response message for the called location request to the calling exchange, including the received route information, the calling exchange is connected to the route information. A third step of establishing a call with the called exchange and transmitting a paging signal to the called terminal; In this case, when the called side exchange recognizes that the called terminal is on the call waiting service and is in an unresponsive state, the called side exchange transmits state information of the called terminal to the called side home location register to perform an additional service. Requesting, and the called party's home location register sends a status information of the called terminal to the CCS server to request a CCS service; When the called party's home location register receives the response to the service request from the CCS server, it transmits the announcement code information about the CCS service to the called party's exchange to respond to the request for performing additional service, and the called party's exchange A fifth step of transmitting a guide comment corresponding to the corresponding announcement code to the calling terminal; As the called party home location register requests a report of the state change of the called terminal to the called side exchange, the called side switch exchanges the state change of the called terminal to the called party home location register when the called terminal becomes available. A sixth step of reporting; When the called party's home location register receives the state change report, releasing a request for the state change report of the called terminal to the called side exchange, and reporting the state change of the called terminal to the CCS server; And Transmitting, by the CCS server, a short message including state change information of the received called terminal through the short message service center to the calling terminal that attempted the call; Method of notifying the status of the called terminal in the mobile communication system, characterized in that comprises a. A base station performing wireless section communication with a mobile communication terminal, a switchboard performing call exchange between a calling terminal and a called terminal, a short message service center providing a short message service to the mobile communication terminal, and calling a call state of a called terminal Is connected to the home location register and short message service center of the mobile communication system configured to include a home location register for managing the subscriber added service information including CCS service information to notify the terminal and performs the location registration of the mobile communication terminal Claims [1] A method for informing a callable state of a called terminal in a system including a CCS server in charge of service control for notifying a caller of a called terminal to a calling terminal, The home location register stores the announcement code information for each incoming state, When the home location register receives a registration recognition message for location registration from an originating terminal through an exchange, the home location register transmits a registration recognition confirmation message including CCS service information of the calling terminal subscriber to the exchange, and the exchange exchanges the CCS service of the subscriber. A first step of storing information; A second step of transmitting, by the exchange, a called location request message including the stored CCS service information to the called party's home location register when a call is attempted from the originating terminal that has performed the location registration to the called terminal; As the called party home location register receives the route information from the called exchange, and transmits a response message for the called location request to the calling exchange, including the received route information, the calling exchange is connected to the route information. A third step of establishing a call with the called exchange according to the call; At this time, when the called side exchange recognizes that the other call is connected to the called terminal, the called side exchange transmits the status information of the called terminal to the called home location register and requests additional service to be performed. A fourth step of requesting a CCS service by transmitting status information of the called terminal to the CCS server; When the called party's home location register receives the response to the service request from the CCS server, it transmits the announcement code information about the CCS service to the called party's exchange to respond to the request for performing additional service, and the called party's exchange A fifth step of transmitting a guide comment corresponding to the corresponding announcement code to the calling terminal; As the called party home location register requests a report of the state change of the called terminal to the called side exchange, the called side switch exchanges the state change of the called terminal to the called party home location register when the called terminal becomes available. A sixth step of reporting; When the called party's home location register receives the state change report, releasing a request for the state change report of the called terminal to the called side exchange, and reporting the state change of the called terminal to the CCS server; And Transmitting, by the CCS server, a short message including state change information of the received called terminal through the short message service center to the calling terminal that attempted the call; Method of notifying the status of the called terminal in the mobile communication system, characterized in that comprises a. The method according to claim 6 or 7, The CCS server stores CCS service setting information for each subscriber including called party number information, CCS operation time information, and notification time information for driving the CCS service. After step 4, before step 5, When a service is requested from the called party's home location register, the CCS server retrieves the service setting information for the corresponding calling party and transmits the service setting information to the called party's home location register in the response message for the service request. Doing; The status notification method of the called terminal in the mobile communication system further comprising. The method according to claim 6 or 7, The home location register stores priority information with other additional services that may collide with the CCS service, The fourth step, Confirming, by the called party's home location register, additional service information of the called party; Determining a priority between the additional service of the called party and the CCS service of the calling party according to the stored priority information; And If the CCS service has a higher priority than the additional service of the called subscriber, transmitting the status information of the called terminal to the CCS server to request a service; Method of notification of the status of the called terminal in a mobile communication system comprising a. The method of claim 9, The CCS service can collide with the CCS service with an incoming call transfer service (CFW) that connects an incoming call to a different number designated by the called party, and the caller can leave a voice message by connecting the incoming call to a voice mailbox. Voice Mail Switching Service (VMS), and Call Memo Service (CRS), a service that notifies the caller's number in a short message when the caller's number is stored when the power is turned off or is not available. ), The priority of each additional service (CFW, VMS, CRS) and CCS service is CFW> CCS> VMS> CRS, the status notification method of the destination terminal in the mobile communication system.