KR101026048B1 - System and method for providing call origination information of restricted call termination - Google Patents

Abstract

The present invention relates to an outgoing call information providing system and a method for providing an outgoing call for providing outgoing information on an incoming call to a called terminal. The location register receives an incoming call failure error message from the called side exchange, and the home location register sends information of the failed incoming call to the calling information providing server. At this time, the originating information providing server, upon receiving the information of the unsuccessful incoming call, suspends the transmission of the originating information message to the called terminal and requests the home location register to notify the called terminal when the called terminal becomes available. When the called terminal is notified from the home location register that the called terminal is in a callable state, the calling information providing server transmits the reserved calling information message to the called terminal through the message center. Therefore, regardless of the validity period of the message processing of the message center, mobile subscribers can be provided with information of the outgoing call.

Incomplete call, incoming call, outgoing information message, catch call, callkeeper, mobile communication

Description

SYSTEM AND METHOD FOR PROVIDING CALL ORIGINATION INFORMATION OF RESTRICTED CALL TERMINATION}

The present invention relates to a system and method for providing outgoing information for an unanswered call to a communication subscriber.

In the current mobile communication system, when the called terminal is powered off or busy and the called party does not receive the incoming call, when the called terminal becomes available, a service for providing outgoing call information of the unreachable call is provided to the called terminal. have. For example, KTF's catch call and SKT's callkeeper service. The called party can check which call was received in the state that the call is unavailable based on the outgoing call information provided by the called terminal, and, if necessary, can make a direct call based on the outgoing call information. On the other hand, by providing the call information of the incoming call to the called terminal can reduce the hassle of the caller unnecessarily attempt to re-call.

Looking at the specific procedure, when a call is sent from the originating terminal to the called terminal, the calling exchange requests the routing information to the home location register (HLR), and the home location registrar requests the called location information to the called exchange. However, when the terminating terminal is powered off, the called party exchange transmits an error message to the home location register in response to the called location information, and the home location register sends the information of the originating call that failed the incoming call to the originating information providing server. Request to send to the called terminal. Then, the originating information providing server creates an SMS message including the information of the outgoing call that failed the incoming call and transmits it to the short message center (SMSC), and the short message center transmits the SMS message when the called terminal becomes available for a call. do. Accordingly, the user of the called terminal can check what call was received while his terminal was incapable of talking.

However, according to the conventional method as described above, the called party may not be provided with outgoing information about the incoming call. Because of this, the Short Message Center (SMSC) manages the validity time for SMS messages due to capacity issues so that SMS messages past this validity period are discarded. For example, the validity period of the SMS message of the current KTF is two days. Therefore, when the power of the called terminal is turned off for more than two days, the called party does not receive the information about the call made to him during the two days, that is, the outgoing information message.

The present invention has been made to improve the above problems, and the system and method for providing outgoing call information for an incoming call for providing outgoing information on an incoming call regardless of the validity period of an SMS message to a called terminal. The purpose is to provide.

Other objects and advantages of the invention will be described below and will be appreciated by the practice of the invention. Further, objects and advantages of the present invention can be realized by the means and the combination shown in the appended claims.

In accordance with a first aspect of the present invention for achieving the above object, an outgoing call information providing system for an outgoing call for providing outgoing information on an incoming call to a called terminal is provided by a request from an originating exchange that receives the outgoing call. A home location register for requesting incoming location information to the called side exchange and receiving a non-receiving error message in response thereto; And receiving and storing the information of the outgoing outgoing call from the home location register, requesting that the called terminal be notified to the home location register when the incoming call becomes available, and receiving the notification of the available call state from the home location register. And an origination information providing server configured to transmit an origination information message including information of an unsuccessful origination call to the called terminal.

In order to achieve the above object, according to a second aspect of the present invention, a communication system including a home location register and an origination information providing server provides outgoing information on an incoming call that provides outgoing information on an incoming call to a called terminal. The method comprises the steps of: requesting, by the home location register, the called location information to the called exchange in response to a request of the calling exchange receiving the originating call and receiving a non-receiving error message in response thereto; Requesting, by the originating information providing server, to receive and store the information of the unsuccessful outgoing call from the home location register and to notify the home location register when the called terminal becomes available for call; Notifying, by the home location register, a call availability state of the called terminal to the originating information providing server; And transmitting, by the originating information providing server, the originating information message including the information of the originating call that failed the incoming call according to the notification, to the called terminal.

As described above, the present invention enables the mobile communication subscriber to be provided with information such as a call made to him / her when the call is not available even if the call is not available for a long time, so as not to miss an important call. In addition, by transmitting a large number of outgoing information messages in one summarized outgoing information message, it is possible to improve the quality of service by eliminating the inconvenience that the subscriber receives too many outgoing information messages. It can also reduce the load on short message centers and other network equipment.

The foregoing and other objects, features and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings, in which: There will be. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail. Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a diagram showing the configuration of a system for providing outgoing information for an incoming call according to an embodiment of the present invention.

Referring to FIG. 1, a system according to the present embodiment includes a mobile terminal 110 and 120, a mobile switching center (MSC) 130 and 140, and a home location register (HLR) 150. , Origination information providing server 160 and Short Messaging Service Center (SMSC) 170. Each component is connected to the No. 7 protocol signal network 180.

The mobile terminals 110 and 170 are communication terminals having a voice call, a video call, and a text message transmission and reception function. In this embodiment, the mobile terminal 110 is described as a calling terminal, and the mobile terminal 170 is a called terminal.

Switch (MSC) (120, 160) is responsible for mobility management, location registration / management, handover, etc. of the mobile terminal (130, 140), and also the location registration of the mobile terminals in each base station through the VLR (Visitor Location Register) Update and store the information, and transmit the changed location registration information of the mobile terminals to a home location register (HLR) 150 that manages location registration information of the mobile terminal so that the location information of the mobile terminals 110 and 120 is periodically updated. do.

Although not shown in the drawings, the mobile terminals 110 and 120 and the switches 130 and 160 are connected through a wireless access network. The wireless access network includes a base station for transmitting and receiving voice / video calls and packet data and the like through a wireless link with the mobile terminals 110 and 120, and a base station controller for managing the radio channel allocation and the like.

The home location register 150 manages profiles of mobile communication subscribers, including current location information of the mobile terminals 110 and 120. In the present invention, when the home location register 150 receives the routing information request for the outgoing call from the originating exchange 130, it queries the destination exchange 140 for the called location information, and the called terminal 120 makes a call. If it is in an impossible state, an error message is received from the called side exchange 140. When the home location register 150 receives the error message, the home location register 150 requests the origination information providing server 160 to transmit the origination information message for the incoming call.

In addition, the home location register 150, when the incoming terminal 120, which is not in the incoming state, becomes available for a call according to the request of the originating information providing server 160, the destination terminal 120 to the originating information providing server 160. ) Indicates that it is available. To this end, the home location register 150 sets and manages message waiting data (MWD) lists for mobile terminals. An example of the message waiting data (NWD) list is shown in Table 1 below.

Parameter name Explanation MNRF Mobile Not Reachable Flag, which indicates that an SMS message could not be sent because of a mobile station not available call. MCEF Mobile Capacity Exceeded Flag, which means that the SMS message could not be transmitted due to the mobile's memory full. SCAddress GT value used as routing information when notifying the relevant contents when the cause of failure to send SMS message is removed

That is, when the MNRF is set in the message waiting data list, the home location register 150 confirms that the originating information message for the unreachable call was not transmitted because the corresponding mobile terminal is not in the incoming state, and the mobile terminal receives the call. When the enabled state is reached, the originating information providing server 160 notifies the mobile terminal that the incoming state is possible according to the SCAddress.

The originating information providing server 160 creates an outgoing information message to be provided to the called terminal 120 using the information of the outgoing call that has not been received, and sends the created outgoing information message to the called terminal 120 through the short message center 170. To). In the present invention, when the origination information providing server 160 receives the origination information for the incoming call from the home location register 130, it does not immediately create an origination information message and transmit it to the terminating terminal 120, the reception After storing the outgoing information for the incoming call can not be made and the destination terminal 120 when the call state is available to create a transmission information message and transmits.

To this end, when the originating information providing server 160 receives the originating information on the incoming call of the called terminal 120 from the home location register 130, the fact that the called terminal 120 is available to call The home location register 130 is requested to notify, and when the destination terminal 120 is available for a call, the home location register 130 is notified of the fact.

The originating information providing server 160 stores a list of outgoing information on the incoming call, which is received from the home location register 130 when the called terminal 120 is in a unavailable state, and the notification is received from the home location register 130. When it comes to create one outgoing information message including all the list of the outgoing information and transmits to the destination terminal (120).

Hereinafter, with reference to FIGS. 2 to 3 will be described in more detail.

2 is a flowchart illustrating a procedure of suspending transmission of an outgoing information message for an incoming call when the called terminal is in a call-free state according to an embodiment of the present invention.

Referring to Figure 2, the caller enters the phone number of the destination terminal 120 to the calling terminal 110 and press the call button to call. The outgoing call sent from the originating terminal 110 is transmitted to the originating exchange 130 through a wireless access network (S201).

The originating exchange 130 receiving the outgoing call transmits a routing information request message (SRI: Send Routing Info) to the home location register 150 accommodating the terminating terminal 120 to process the incoming call (S203). .

Upon receiving the routing information request, the home location register 150 transmits a called location information request message (PRN: Providing Roaming Number) to the called side exchange 140 (S205), and the called side exchange 140 receives a response. When the call is in a disabled state, such as when the terminating terminal 120 is powered off, an error message is returned in the called location information response (S207, S209). In this case, the error message includes a reason for not being able to call.

The home location register 150 receiving the error message transmits the error message to the calling exchange 130 as a routing information response (S211), and the calling exchange 130 transmits a call impossible announcement to the calling terminal 110. Send it out.

On the other hand, the home location register 150 receiving the error message transmits the information of the outgoing incoming call to the originating information providing server 160 (S213). Here, the information of the outgoing call includes the caller's phone number, the called party's phone number, and the call origination time. The originating information providing server 160 records the information of the received outgoing outgoing call as an outgoing information list for the called terminal (S215).

Subsequently, the originating information providing server 160 transmits a notification request message (RDS: ReportSMDeliveryStatus) to the home location register 150 for requesting to be notified when the called terminal 120 becomes available for calling (S217). In operation S219, a response is received from the home location register 150. Here, the notification request message includes a number (MSISDN) of the called terminal 120 and a GT (Global Title) value for receiving a notification when the called terminal 120 becomes available. The originating information providing server 160 continuously receives from the home location register 150 information of an outgoing call that fails to reach the called terminal 120 while the called terminal 120 is in an impossible state.

On the other hand, the home location register 150 received the notification request from the originating information providing server 160, as shown in Table 1 above, sets the message waiting data (MWD) list for the destination terminal 120 (S221). The home location register 150 notifies the originating information providing server 160 of the fact that the called terminal 120 is in a callable state based on the message waiting data list. The detailed procedure will be described later with reference to FIG. 3.

3 is a flowchart illustrating a procedure of transmitting an outgoing information message for an incoming call when the called terminal becomes available for call according to an embodiment of the present invention.

Referring to FIG. 3, when the called terminal 120 is in a callable state such as power is turned on, the called terminal 120 requests a location registration to the called side exchange 140 through a wireless access network, and the called side The exchange 140 requests a location registration to the home location register 150 accommodating the called terminal 120 (S301).

The home location register 150 updates the location information of the called terminal 120 and transmits a location registration response to the called side exchange 140 (S303). On the other hand, the home location register 150 checks the message waiting data (MWD) list of the destination terminal 120 of the location registration and updated to check whether or not the flag associated with the suspension of transmission of the outgoing information message is set (S305).

If a flag related to the suspension of transmission of the outgoing information message is set, the home location register 150 should notify the facts when the cause of the suspension is eliminated, i.e., when the terminating terminal 120 becomes available. Checking the routing information (ie, GT), and notifies the originating information providing server 160 that the called terminal 120 is available to call according to the routing information (S307).

Calling information providing server 160 transmits a response to the notification to the home location register (150) (S309), calling information providing server 160 is called terminal when the called terminal 120 is in a call disabled state ( In step 120, it checks the outgoing call information that has been attempted, and creates the outgoing information list into one outgoing information message (S311).

Next, the origination information providing server 160 transmits the created origination information message to the short message center 170 (S313), and the short message center 170 transmits the received origination information message to the called party exchange 140. Transfer to (S315). The destination side exchange 140 transmits the received outgoing information message to the destination terminal 120 in which the call is available (S317).

In the present invention as described above, regardless of the validity period of the message processing in the short message center 170, the originating information providing server 160 is attempted to the destination terminal 120 while the destination terminal 120 is in a call disabled state Stores and manages the information of the outgoing call, and transmits the information of the outgoing call that was attempted when the called terminal 120 is in an impossible state when the called terminal 120 becomes available to the called terminal 120 as one message. Therefore, the mobile subscriber does not miss an important call by receiving an outgoing information message for an incoming call even when the impossible state of the call lasts more than two days.

The method of the present invention as described above may be embodied as a program and stored in a computer-readable recording medium (such as a CD-ROM, a RAM, a ROM, a floppy disk, a hard disk, or a magneto-optical disk).

While the specification contains many features, such features should not be construed as limiting the scope of the invention or the scope of the claims. Also, the features described in the individual embodiments herein can be implemented in combination in a single embodiment. Conversely, various features described herein in a single embodiment may be implemented in various embodiments individually or in a suitable subcombination.

It is to be understood that, although the operations have been described in a particular order in the figures, it should be understood that such operations are performed in a particular order as shown, or that a series of sequential orders, or all described operations, . In some circumstances, multitasking and parallel processing may be advantageous. In addition, it should be understood that the division of various system components in the above-described embodiments does not require such division in all embodiments. The above-described program components and systems can generally be implemented as a single software product or as a package in multiple software products.

The present invention described above is capable of various substitutions, modifications, and changes without departing from the technical spirit of the present invention for those skilled in the art to which the present invention pertains. It is not limited by the drawings.

The following drawings, which are attached to this specification, illustrate preferred embodiments of the present invention, and together with the detailed description of the present invention serve to further understand the technical spirit of the present invention, the present invention includes matters described in such drawings. It should not be construed as limited to.

1 is a diagram showing the configuration of a system for providing outgoing information for an incoming call according to an embodiment of the present invention.

2 is a flowchart illustrating a procedure of suspending transmission of an outgoing information message for an incoming call when the called terminal is in a call-free state according to an embodiment of the present invention.

3 is a flowchart illustrating a procedure of transmitting an outgoing information message for an incoming call when the called terminal becomes available for call according to an embodiment of the present invention.

Claims (8)

An outgoing call information providing system for an incoming call that provides outgoing information about an incoming call to a called terminal, A home location register for requesting destination location information from a destination exchange in response to a request of an originating exchange that receives an outgoing call and receiving an unreachable error message in response thereto; And Receives and stores the information of the outgoing outgoing call from the home location register, requests that the called terminal be notified to the home location register when the call is available, and receives the notification of the available state from the home location register. And an originating information providing server configured to transmit an originating information message including information of a failed originating call to the called terminal. The originating information providing server transmits routing information to be used when notifying a call availability state to the home location register, And the home location register is an originating information providing system for an unanswered call that notifies the originating information providing server of a call availability state based on the routing information. The method of claim 1, The home location register, And when the location registration request of the called terminal is received from the called side exchange, notifying the calling information providing server of a call availability state. delete The method according to claim 1 or 2, The origination information providing server, Calling information providing system for the incoming call, characterized in that for transmitting the information of the outgoing calls that failed incoming call to the called terminal as a call origination information message. A communication system including a home location register and an origination information providing server, the method for providing outgoing information on an incoming call for providing outgoing information on an incoming call to a called terminal, (a) requesting, by the home location register, the destination location information to the destination exchange according to a request of the source exchange receiving the originating call, and receiving a non-receipt error message in response thereto; (b) requesting, by the originating information providing server, to receive and store the information of the unsuccessful outgoing call from the home location register and to notify the home location register when the called terminal becomes available for calling; (c) the home location register notifying the originating information providing server of the available state of the called terminal; And (d) transmitting, by the originating information providing server, the originating information message including the information of the originating call that failed to be received according to the notification, to the called terminal; The step (b) includes the step of transmitting, by the originating information providing server, routing information to be used when notifying a call availability state to the home location register. In step (c), the home location register, the originating information providing method for the incoming call to notify the call availability state to the originating information providing server based on the routing information. The method of claim 5, In the step (c), The home location register, the originating information providing method for the incoming call, characterized in that notifying the call state of the called terminal to the originating information providing server in response to receiving the location registration request of the called terminal from the called side exchange. . delete The method according to claim 5 or 6, In step (d), The originating information providing server, the originating information providing method for the incoming call, characterized in that for transmitting the information of the outgoing calls that failed the call while the called terminal is in a call unavailable state to the called terminal.

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