KR20040072388A - Vms service method using map protocol in umts - Google Patents

Abstract

PURPOSE: A method for providing a voice mail box service using a mobile application part protocol in an asynchronous mobile communication system is provided to standardize an individually realized a UMTS(Universal Mobile Telecommunications Systems) voice mail box service in a UMTS map protocol, thereby efficiently realizing inter-networking. CONSTITUTION: If a calling subscriber inputs the number of a called subscriber, a path mobile exchanger transmits an SRI(Send Routing Information) message for inquiring of position information of the called subscriber to a home location register(202). The home location register judges a not-reachable state of the called subscriber(204). The home location register assigns a VSRN(VMS Service Roaming Number) and sends a response message including the VSRN to the path mobile exchanger(206). The path mobile exchanger grasps a position of a voice mail box system where the called subscriber is registered, and executes an IAM(Initial Address Message) to the voice mail box system(208). If the called subscriber is reachable, the optimum path conditions are judged(210). The home location register transmits a PSI(Provide Subscriber Information) message to a visitor location register to request register information of the called subscriber(212). The visitor location register transmits a PSI response message to the hole location register(214). The home location register assigns a VSRN and sends a response message including the VSRN to the path mobile exchanger(216). The path mobile exchanger grasps a position of the voice mail box system where the called subscriber is registered, and executes an IAM to the voice mail box system(218). If the optimum path is not supported, the home location register transmits a providing roaming number message to the visitor location register(220). The home location register transmits a response message including absent subscriber error information to the home location register(222). The home location register executes a VMS(Voice Message Service) service according to a not-reachable state(224). The path mobile exchanger grasps the position of the voice mail box system where the called subscriber is registered, and executes an IAM to the voice mail box system(226).

Description

Method of providing voice mailbox service using mobile communication application protocol in asynchronous mobile communication system {VMS SERVICE METHOD USING MAP PROTOCOL IN UMTS}

The present invention relates to a method of providing an additional service of a mobile communication system, and more particularly, to a method of providing a voice mailbox service in which an outgoing mobile network subscriber can leave a voice in a voice mailbox system registered by an incoming mobile network subscriber.

In general, a voice mailbox service (hereinafter referred to as a 'VMS service') is a case in which a terminating mobile network subscriber does not perform normal incoming processing due to a busy call, no answer, power off, or the like. Doesn't want to answer the phone, so it can be switched to an unconditional Voice Mail System ('VMS') at will.

Currently, a technology for providing a VMS service in a CDMA network is defined in a mobile application part (Niha 'MAP') protocol and a service standard. However, in the GSM / UMTS network, technology for providing VMS service is not defined in the MAP protocol and service standard, but is provided by a specific method defined by each operator.

As such, in the UMTS network, since the VMS service is provided according to a specific method defined by an operator such as using an intelligent network service, there are many limitations in providing roaming for the VMS service between the UMTS network and the CDMA network. That is, roaming is not possible when the VMS service is fully implemented according to the service provider's own standard, and even if the UMTS network subscriber wants to receive the VMS service in the CDMA network, even if the VMS service is implemented through the intelligent network service, the complicated UMTS / CDMA intelligent network service protocol conversion There is a problem that the procedure must be carried out.

Accordingly, the present invention provides a VMS service using the MAP protocol in a method similar to CDMA in the UMTS network of the present invention.

1 is a diagram illustrating an unconditional VMS service procedure using a MAP protocol in a UMTS network according to the present invention;

2 is a view showing a VMS service procedure in the early VMS call unavailable conditions using the MAP protocol in the UMTS network according to the present invention,

3 is a diagram illustrating a VMS service procedure in a Late VMS NotReachable condition using a MAP protocol in a UMTS network according to the present invention;

4 is a diagram illustrating a VMS service procedure in an early VMS busy condition using a MAP protocol in a UMTS network according to the present invention;

FIG. 5 is a diagram illustrating a procedure during a late VMS busy condition using a MAP protocol in a UMTS network according to the present invention; FIG.

6 illustrates a VMS service procedure in a Late VMS No Response condition using a MAP protocol in a UMTS network according to the present invention.

7 is a diagram illustrating a VMS service procedure under a VMS retrieval condition using a MAP protocol in a UMTS network according to the present invention.

DETAILED DESCRIPTION A detailed description of preferred embodiments of the present invention will now be described with reference to the accompanying drawings. It should be noted that reference numerals and like elements among the drawings are denoted by the same reference numerals and symbols as much as possible even though they are shown in different drawings. In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

1 is a diagram illustrating an unconditional VMS service procedure using a MAP protocol in a UMTS network according to the present invention.

Referring to the blocks shown in Figure 1 as follows. The Interrogation Public Land Mobile Network (IPLMN) is a PLMN for which the originating subscriber A is currently located. A gateway mobile switching center (GMSCA) 10 is a mobile switch that provides a switching function for a mobile terminal in the interrogation public mobile communication network. On the other hand, the Home Public Land Moile Network (HPLMN) is a public mobile network in which the called party B is permanently registered. And the home location register (HLRB) 20 permanently stores the location information of the called party (B). Also, the Visited Public Land Moile Network (VPLMN) is a public mobile communication network in which the called party B is currently located. The visitor location register (VLRB) 30 temporarily stores the location information of the current called party B. The called party mobile switch (VMS_GMSCB) 40 provides an exchange function for the mobile terminal and is connected to the voice mailbox system 50 to which the called party B is registered. The voice mailbox system (VMSB) 50 provides a VMS service.

In general, an unconditional VMS service procedure is a procedure for switching to an unconditional voice mailbox system at the will of the recipient, for example, when the called party does not want to answer the call.

Referring to FIG. 1, an unconditional VMS service procedure using a MAP protocol in a UMTS network will be described in detail.

First, when the calling subscriber inputs the called party's number to his terminal, in step 102, the channel mobile switchboard 10 in the interrogation public telecommunication network (IPLMN) is the home in the home public telecommunication network (HPLMN) where the called party is registered. Send a message (Send Routing Info: SRI) for querying the location information of the called subscriber to the location register 20. In step 104, the home location register 20 enables a call transfer to the voice mailbox system 50 in which the called subscriber is registered regardless of the current state of the called subscriber. At this time, the home location register 20 sends a response message SRIAck including routing information (VSRN) (VSRN) to the voice mail system 50 to the passage mobile switching system 10. Then, in step 106, the passage mobile switching system 10 determines the position of the voice mailbox system 50 in which the called subscriber is registered from the VSRN, and receives the voice mailbox system (VMS_MSCB) 40 through the called-side mobile switching system (VMS_MSCB) 40. Perform an initial address message (hereinafter referred to as 'IAM'). As such, a call is established between the passage mobile switching center 10 and the voice mailbox system 50 so that the calling subscriber can use the voice mailbox service registered by the called subscriber.

2 is a diagram illustrating a VMS service procedure in an Early VMS NotReachable condition using a MAP protocol in a UMTS network according to the present invention.

In general, in the case of an Early VMS NotReachable condition, the VMS service procedure registers the called party before the call establishment is made between the channel mobile switching center that is in charge of the originating subscriber and the exchange 40 which is in charge of the called party. The home location register 20 determines that the called party is in a NotReachable state and provides a VMS service.

Referring to FIG. 2, the VMS service procedure will be described in detail in the case of Early VMS NotReachable condition using the MAP protocol in a UMTS network.

First, when the calling subscriber inputs the number of the called subscriber to his terminal, in step 202, the passage mobile switchboard 10 in the interrogation public telecommunication network (IPLMN) is connected to the home location register 20 in the home public telecommunication network (HPLMN). Send a message (SRI) to query the location information of the called party. At this time, the query public message network (IPLMN) can recognize the number of the called party B in the query message (SRI), the query public mobile network (IPLMN) and the home public mobile communication network ( When the HPLMN is in a different country (hereinafter, 'optimal path condition'), a parameter indicating an optimal path request is included. In step 204, the home location register 20 determines whether or not the called subscriber cannot talk. At this time, in the visitor location register (VLRB) 20 which temporarily registers the location information of the called party, the called party's information is deleted (Purged) or roaming restricted (RoamingRestricted), etc. ), (C1: Y), step 206 is performed. At this time, in step 206, the home location register 20 allocates a VSRN and sends a response message including the VSRN to the path transfer switch 10. Then, in step 208, the passage mobile exchange 10 detects the position of the voice mailbox system 50 in which the called subscriber is registered from the VSRN, and receives the voice mailbox system (VMS_MSCB) 40 through the called-side mobile exchange (VMS_MSCB) 40. Perform IAM to 50). As such, a call is established between the mobile switch and the voice message system so that the calling subscriber can use the VMS service registered by the called subscriber.

However, if it is determined in step 204 that the call is not NotReachable (C1: N), step 210 is performed.

In step 210, the optimal path condition is determined. At this time, when the optimal path condition is determined and the subscriber information request procedure by the optimal path can be processed (C1: N, C2: Y), steps 212 to 218 are performed.

In step 212, the home location register 20 sends a subscriber information request message (PSI) to the visitor location register 30 in the visited public telecommunication network (VPLMN) to request registration information of the called subscriber. Then, in step 214, the visitor location register 30 sends a subscriber information response message PSIAck to the home location register 20 that includes the called party in an incapable state. In step 216, the home location register 20 allocates a VSRN and sends a response message SRIAck including the VSRN to the path mobile switching center 10. Then, in step 218, the passage mobile exchange 10 detects the position of the voice mailbox system 50 in which the called subscriber is registered from the VSRN, and receives the voice mailbox system (VMS_MSCB) 40 through the called-side mobile exchange (VMS_MSCB) 40. Perform IAM to 50). As such, a call is established between the passage mobile switching center 10 and the voice mailbox system 50 so that the calling subscriber can use the voice mailbox service registered by the called subscriber.

However, when the optimal path condition is determined in step 210, if the optimal path is not supported (C1: N, C2: N), the following steps 220 to 226 are performed.

In step 220, the home location register 20 sends a message to the visitor location register 30 to request the allocation of a mobile station roaming number (MSRN) for the called subscriber (Providing Roaming Number (PRN)). . In step 222, the visitor location register 30 sends a response message PRNErr including the absent subscriber error information to the home location register 20. Thereafter, in step 224, the home location register 20 performs a VMS service procedure according to a call unavailable state because the PRN result is an absent subscriber error. That is, the home location register 20 allocates a VSRN and sends a response message SRIAck including the VSRN to the passage mobile switch 10. Then, in step 226, the passage mobile switching system 10 determines the position of the voice mailbox system 50 in which the called subscriber is registered from the VSRN, and receives the voice mailbox system (VMS_MSCB) 40 through the called-side mobile switching system (VMS_MSCB) 40. Perform IAM to 50). As such, a call is established between the passage mobile switching center 10 and the voice mailbox system 50 so that the calling subscriber can use the voice mailbox service registered by the called subscriber.

3 is a diagram illustrating a VMS service procedure in a Late VMS NotReachable condition using a MAP protocol in a UMTS network according to the present invention.

In general, in the case of Late VMS NotReachable condition, the VMS service procedure is performed after the call setup is established between the channel mobile switching center that controls the originating subscriber and the exchange 40 that manages the terminating subscriber. The visitor location register 30 determines that the called party is in a NotReachable state and provides a VMS service.

Referring to FIG. 3, the VMS service procedure will be described in detail in a Late VMS NotReachable condition using the MAP protocol in a UMTS network.

First, when the calling subscriber inputs the number of the called subscriber to his terminal, in step 302, the channel mobile switchboard 10 in the interrogation public telecommunication network (IPLMN) is connected to the home location register 20 in the home public telecommunication network (HPLMN). Send a message (SRI) to query the location information of the called party. In this case, the query public message network (SRI) can recognize the number of the subscriber (B) subscriber, the query public mobile communication network and the home public mobile communication network is a different country (country) If the case condition (hereinafter, 'optimum path condition') is satisfied, a parameter indicating an optimal path request is included. In step 304, the home location register 20 sends a message (PRN) for requesting the allocation of a roaming number (MSRN) for the called subscriber to the visitor location register 30 in the visited public telecommunication network (VPLMN). . The visitor location register 30 then sends a response message (PRNAck) including the MSRN to the home location register 20 in step 306. Thereafter, in step 308, the home location register 20 includes a response message SRIAck including a parameter for allowing the passage mobile switch 10 to query the roaming number MSRN to the home location register 20 afterwards. Is sent to the passage mobile exchange 10. In step 310, the aisle transit switch 10 establishes a call with the visitor location register 30.

Thereafter, in step 312, when the visitor location register 30 determines that the called party is incapable of calling, the optimum route condition is determined. At this time, if the optimal path condition is determined and the subscriber information request procedure according to the optimal path can be processed (C1: Y), steps 314 to 324 are performed.

In step 314, the visitor location register 30 re-initiates a call to a specific destination other than the first called number by the mobile switching center (VMS_GMSCB) 40 in charge of the called subscriber. A call resumption request message (ResumeCallHandling: RCH) is sent to the channel mobile switching center 10 so as to request (call transfer). At this time, the call resumption request message (RCH) includes information indicating that the called party is currently unavailable. In step 316, the aisle transit switch 10 sends a call transfer information request message SRI (F) to query the home location register 20 for call transfer information (FwdNum or VSRN) previously registered by the called subscriber. send. Then, in step 318, the home location register 20 analyzes the received call transfer information request message (SRI (F)) to determine that the called party is currently incapable of performing a VMS service procedure according to the incapable of calling. do. That is, the home location register 20 allocates a VSRN and sends a response message SRIAck including the VSRN to the passage mobile switch 10. Thereafter, in step 320, the passage mobile exchange 10 sends a response message (RCHAck) to the visitor location register 30 in response to the call resumption request. In step 322, the passage mobile exchange 10 disconnects the call established between the passage mobile exchange 10 and the visitor location register 30 in order to perform the VMS service procedure. Thereafter, in step 324, the aisle transit switch 10 establishes a call with the voice mailbox system 50 via the mobile switch 40 which manages the voice mailbox system 50 in which the called subscriber is registered. As such, a call is established between the passage mobile switching center 10 and the voice mailbox system 50 so that the calling subscriber can use the voice mailbox service registered by the called subscriber.

However, when the optimal path condition is determined in step 312, if the optimal path is not supported (C1: N), steps 326 to 330 are performed.

In step 326, the visitor location register 30 sends a call transfer information request message SRI (F) to the home location register 20 to directly obtain call transfer information. Then, in step 328, the home location register 20 analyzes the received call transfer information request message (SRI (F)) to determine that the called party is currently in a disabled state and performs a VMS service procedure according to the unavailable state. do. That is, the home location register 20 allocates a VSRN and sends a response message SRIAck including the VSRN to the passage mobile switch 10. Then, in step 330, the visitor location register 30 grasps the voice mailbox system 50 for the called subscriber from the received VSRN, and receives the voice mailbox system 50 through the called-side mobile exchange (VMS_MSCB) 40. Perform IAM with. As such, a call is established between the passage mobile switching center 10 and the voice mailbox system 50 so that the calling subscriber can use the voice mailbox service registered by the called subscriber.

4 is a diagram illustrating a VMS service procedure in an early VMS busy condition using a MAP protocol in a UMTS network according to the present invention.

In general, in an early VMS busy condition, the VMS service procedure is performed when the called subscriber is registered before the call setup is made between the channel mobile switching center that is in charge of the originating subscriber and the exchange 40 which is in charge of the called subscriber. The home location register 20 determines that the called party is busy and provides a VMS service.

Referring to FIG. 4, the VMS service procedure will be described in detail during an Early VMS busy condition using the MAP protocol in a UMTS network.

First, when the calling subscriber inputs the number of the called subscriber to his terminal, in step 402, the channel mobile switchboard in the interrogation public telecommunication network (IPLMN) is connected to the home location register 20 in the home public telecommunication network (HPLMN). Sends a message (SRI) to query the location information. In this case, the query public message network (SRI) can recognize the number of the subscriber (B) subscriber, the query public mobile communication network and the home public mobile communication network is a different country (country) If the case condition (hereinafter, 'optimum path condition') is satisfied, a parameter indicating an optimal path request is included.

In step 404, the optimum path condition is determined. At this time, when the optimal path condition is determined and the subscriber information request procedure according to the optimal path can be processed (C1: N), steps 406 to 412 are performed.

In step 406, the home location register 20 sends a subscriber information request message (PSI) to the visitor location register 30 in the visited public telecommunication network (VPLMN) to request registration information of the called subscriber. In step 408, the visitor location register 30 sends a subscriber information response message PSIAck including the busy status information of the called subscriber to the home location register 30. In step 410, the home location register 20 allocates a VSRN and sends a response message SRIAck including the VSRN to the path mobile switch 10. Then, in step 412, the passage mobile switching system 10 determines the position of the voice mailbox system 50 in which the called subscriber is registered from the VSRN, and receives the voice mailbox system (VMS_MSCB) 40 through the called-side mobile switching system (VMS_MSCB) 40. Perform IAM to 50). As such, a call is established between the passage mobile switching center 10 and the voice mailbox system 50 so that the calling subscriber can use the voice mailbox service registered by the called subscriber.

However, when the optimal path condition is determined in step 404, if the optimal path is not supported (C1: N), steps 414 to 420 are performed.

In step 414, the home location register 20 sends a message PRN to the visitor location register 50 to request the allocation of a roaming number MSRN for the called subscriber. In step 416, the visitor location register 50 sends a response message PRNErr including BusySubscribe Error information of the called subscriber to the home location register 20. Thereafter, in step 418, the home location register 20 performs a VMS service procedure according to the busy state because the PRN result is a busy error. That is, the home location register 20 allocates a VSRN and sends a response message SRIAck including the VSRN to the passage mobile switch 10. Then, in step 420, the passage mobile exchange 10 determines the position of the voice mailbox system 50 in which the called subscriber is registered from the VSRN, and receives the voice mailbox system (VMS_MSCB) 40 through the destination side mobile exchange (VMS_MSCB) 40. Perform IAM to 50). As such, a call is established between the passage mobile switching center 10 and the voice mailbox system 50 so that the calling subscriber can use the voice mailbox service registered by the called subscriber.

FIG. 5 is a diagram illustrating a procedure during a late VMS busy condition using a MAP protocol in a UMTS network according to the present invention.

In general, in a late VMS busy condition, the VMS service procedure is performed after a call setup is made between a passage mobile switching center that has jurisdiction over an originating subscriber and an exchange 40 having jurisdiction with a terminating subscriber. The visitor location register 30 determines that the called party is in a busy state and provides a VMS service.

Referring to FIG. 5, the VMS service procedure will be described in detail in a late VMS busy condition using the MAP protocol in a UMTS network.

First, when the calling subscriber inputs the number of the called subscriber to his terminal, in step 502, the passage mobile switchboard 10 in the interrogation public telecommunication network (IPLMN) is connected to the home location register 20 in the home public telecommunication network (HPLMN). Send a message (SRI) to query the location information of the called party. At this time, the query message (SRI) is a condition that the query public mobile communication network can recognize the number of the subscriber (B) subscriber, the query public mobile communication network and the HPLMN is a different country (country) ( Hereinafter, 'optimum path condition') includes a parameter indicating an optimal path request. In step 504, the home location register 20 sends a message PRN to the visitor location register 50 in the visited public telecommunication network VPLMN to request the allocation of a roaming number MSRN for the called party. . In step 506, the visitor location register 50 sends a response message (PRNAck) including the MSRN to the home location register 20. Subsequently, in step 508, the home location register 20 includes a response message (SRIAck) including a parameter for allowing the passage mobile switching center 10 to query the roaming number MSRN to the home location register 20 afterwards. Is sent to the passage mobile exchange 10. In step 510, the passage mobile switch 10 sets up a call with the visitor location register 30.

Thereafter, in step 512, if the visitor location register 30 determines that the called party is in a busy state, the visitor location register 30 determines the optimal route condition. At this time, when the optimal path condition is determined and the subscriber information request procedure according to the optimal path can be processed (C1: Y), steps 514 to 524 are performed.

In step 514, the visitor location register 30 re-initiates the call to a specific destination other than the first called number by the mobile switching center VMS_GMSCB that is in charge of the incoming subscriber (call transfer). Send a call re-initiation request message (RCH) to the channel mobile switchboard 10 so as to request At this time, the call resumption request message (RCH) includes information indicating that the called party is currently busy. In step 516, the aisle transit switch 10 sends a call transfer information request message SRI (F) to query the home location register 20 for call transfer information (FwdNum or VSRN) previously registered by the called subscriber. send. Then, in step 518, the home location register 20 analyzes the received call transfer information request message (SRI (F)) to determine that the called party is currently in a busy state to determine the busy state. Perform VMS service procedure accordingly. That is, the home location register 20 allocates a VSRN and sends a response message SRIAck including the VSRN to the passage mobile switch 10. Thereafter, in step 520, the aisle transit switch 10 sends a response message (RCHAck) to the visitor location register 30 in response to the call resumption request. In step 522, the aisle transit switch 10 disconnects the call established between the aisle transit switch 10 and the visitor location register 30 in step 510 to perform a VMS service procedure. Subsequently, in step 524, the aisle transit switch 10 establishes a call with the voice mailbox system 50 via the mobile switch 40 that manages the voice mailbox system 50 in which the called subscriber is registered. As such, a call is established between the passage mobile switching center 10 and the voice mailbox system 50 so that the calling subscriber can use the voice mailbox service registered by the called subscriber.

However, when the optimal path condition is determined in step 512, if the optimal path is not supported (C1: N), steps 526 to 530 are performed.

In step 526, the visitor location register 30 sends a call transfer information request message SRI (F) to the home location register 20 to directly obtain call transfer information. In step 528, the home location register 20 analyzes the received call transfer information request message (SRI (F)) to determine that the called party is currently in a busy state. Perform VMS service procedure accordingly. That is, the home location register 20 allocates a VSRN and sends a response message SRIAck including the VSRN to the passage mobile switch 10. Then, in step 530, the visitor location register 30 grasps the voice mailbox system 50 for the called subscriber from the received VSRN, and receives the voice mailbox system 50 through the called-side mobile exchange (VMS_MSCB) 40. Perform IAM with. As such, a call is established between the passage mobile switching center 10 and the voice mailbox system 50 so that the calling subscriber can use the voice mailbox service registered by the called subscriber.

FIG. 6 is a diagram illustrating a VMS service procedure in a Late VMS No Response condition using a MAP protocol in a UMTS network according to the present invention.

In general, in the case of Late VMS NoReply condition, the VMS service procedure is a visitor to which the called party is registered after a call is established between the channel mobile switching center that is in charge of the originating subscriber and the exchange 40 which is in charge of the called party. The location register 30 determines that the called subscriber is in a NoReply state and provides a VMS service.

Referring to FIG. 6, the VMS service procedure is described in detail in the case of Late VMS No Response using the MAP protocol in the UMTS network.

First, when the calling subscriber inputs the number of the called subscriber to his terminal, in step 602, the passage mobile switchboard 10 in the interrogation public telecommunication network (IPLMN) is connected to the home location register 20 in the home public telecommunication network (HPLMN). Send a message (SRI) to query the location information of the called party. In this case, the query public message network (SRI) can recognize the number of the subscriber (B) subscriber, the query public mobile communication network and the home public mobile communication network is a different country (country) If the case condition (hereinafter, 'optimum path condition') is satisfied, a parameter indicating an optimal path request is included. In step 604, the home location register 20 sends a message (PRN) for requesting the allocation of a roaming number (MSRN) for the called subscriber to the visitor location register 30 in the visited public telecommunication network (VPLMN). . In step 606, the visitor location register 30 sends a response message (PRNAck) including the MSRN to the home location register 20. Thereafter, in step 608, the home location register 20 includes a response message (SRIAck) including a parameter for allowing the passage mobile switching center 10 to query the roaming number MSRN to the home location register 20 afterwards. Is sent to the passage mobile exchange 10. In step 610, the passage mobile switch 10 establishes a call with the visitor location register 30.

Thereafter, in step 612, if the visitor location register 30 determines that the called subscriber is not in an answering state, the optimum route condition is determined. In this case, when the optimal path condition is determined and the subscriber information request procedure based on the optimal path can be processed (C1: Y), steps 614 to 624 are performed.

In step 614, the visitor location register 30 re-initiates the call to a specific destination other than the first called number by the mobile switching center (VMS_GMSCB) 40 in charge of the called subscriber. A call re-initiation request message (RCH) is sent to the path mobile switch 10 so as to request (call transfer). At this time, the call resumption request message (RCH) includes information indicating that the called party is currently busy. In step 616, the aisle transit switch 10 sends a call transfer information request message SRI (F) to query the home location register 20 for call transfer information FwdNum or VSRN previously registered by the called subscriber. send. Then, in step 618, the home location register 20 analyzes the received call transfer information request message (SRI (F)) to determine that the called party is currently in a NoReply state, and the VMS according to the NoReply state. Perform service procedures. That is, the home location register 20 allocates a VSRN and sends a response message SRIAck including the VSRN to the passage mobile switch 10. Thereafter, in step 620, the aisle transit switch 10 sends a response message (RCHAck) to the visitor location register 30 in response to the call resumption request. In step 622, the aisle transit switch 10 disconnects the call established between the aisle transit switch 10 and the visitor location register 30 in step 610 to perform a VMS service procedure. Thereafter, in step 624, the aisle transit switch 10 establishes a call with the voice mailbox system 50 via the mobile switch 40 that manages the voice mailbox system 50 in which the called subscriber is registered. As such, a call is established between the passage mobile switching center 10 and the voice mailbox system 50 so that the calling subscriber can use the voice mailbox service registered by the called subscriber.

However, when the optimal path condition is determined in step 612, if the optimal path is not supported (C1: N), steps 626 to 630 are performed.

In step 626, the visitor location register 30 sends a call transfer information request message SRI (F) to the home location register 20 to directly obtain call transfer information. Then, in step 628, the home location register 20 analyzes the received call transfer information request message SRI (F) to determine that the called subscriber is currently in a NoReply state, and thus the VMS according to the NoReply state. Perform service procedures. That is, the home location register 20 allocates a VSRN and sends a response message SRIAck including the VSRN to the passage mobile switch 10. Then, in step 630, the visitor location register 30 grasps the voice mailbox system 50 for the called subscriber from the received VSRN, and receives the voice mailbox system 50 through the called-side mobile exchange (VMS_MSCB) 40. Perform IAM with. As such, a call is established between the passage mobile switching center 10 and the voice mailbox system 50 so that the calling subscriber can use the voice mailbox service registered by the called subscriber.

7 is a diagram illustrating a VMS service procedure under a VMS search condition using a MAP protocol in a UMTS network according to the present invention.

Currently, the VMS service is not provided as a supplementary service in the UMTS network. Therefore, for retrieval of the voice mailbox system registered by the mobile network subscriber, the feature code for retrieving VMS (eg, '* 88') or the telephone number of the terminal used by the calling subscriber (hereinafter referred to as 'self number') ), There is no MAP operation to process it. However, the present invention proposes a method for retrieving a voice mailbox system using the MAP protocol in a UMTS network.

Referring to FIG. 7, the VMS service procedure will be described in detail in the case of a VMS retrieval condition using the MAP protocol in a UMTS network.

First, in step 700, the calling subscriber inputs a feature code (eg, '* 88') or a personal number for VMS search. Then, in step 702, the channel mobile switchboard 10 in the interrogation public telecommunication network (IPLMN) determines that the call is for the VMR from '* 88 feature code' or 'dial number and caller's number are the same'. At this time, the originating subscriber and the called subscriber may be the same), and a message (SRI) for querying the location information of the called subscriber is sent to the home location register 20 in the home public mobile network (HPLMN) in which the subscriber is registered. . At this time, the IPLMN sets the information indicating the VMR call in the SRI. In step 704, the home location register 20 analyzes the received message (SRI) to determine that it is a VMR retrieval condition, so that the called party can transfer the call to the registered voice mailbox system 50. Allocate a routing digit (VSRN). The response message SRIAck including the VSRN is transmitted to the path transfer switch 10. Then, in step 706, the passage mobile exchange 10 detects the position of the voice mailbox system 50 in which the called subscriber is registered from the VSRN, and receives the voice mailbox system (VMS_MSCB) 40 through the called-side mobile exchange (VMS_MSCB) 40. Perform IAM to 50). As such, a call is established between the passage mobile switching center 10 and the voice mailbox system 50 so that the calling subscriber can use the voice mailbox service registered by the called subscriber.

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the scope of the following claims, but also by the equivalents of the claims.

As described above, the present invention has an advantage in that interworking can be efficiently performed by standardizing a UMTS voice mailbox service individually implemented according to an operator using a UMTS MAP protocol.

In addition, the present invention basically does not need to implement additional functions when the voice mailbox service operators of the UMTS network and the CDMA network roam to the other network (roaming from the UMTS network to the CDMA network or roaming from the CDMA network to the UMTS network), respectively. There is an advantage that the voice mailbox service can be easily provided to the partner network using only the MAP conversion function provided.

Claims (14)

A passage mobile switch for setting up a call from an originating terminal to a called terminal, a home location register for permanently storing the location information of the called terminal, a voice mailbox system for providing a voice mail service to the calling terminal, and the passage movement Claims [1] A method for providing a voice mailbox service using a mobile communication application unit (MAP) protocol in an asynchronous mobile communication system (UMTS) including a called party mobile exchange for setting up a call from an exchange to the voice mailbox system. For an Unconditional VMS Service Condition, Obtaining, from the home location register, a VSRN corresponding to the number input to the originating terminal; And the passage mobile switch determines the voice mailbox system in which the called terminal is registered from the VSRN, and sets up a call to the voice mailbox system via the visit mobile switch. A passage mobile exchange for setting up a call from an originating terminal to a called terminal, a home location register for permanently storing the location information of the called terminal, a visitor location register for temporarily storing the location information of the called terminal, and the originating call A mobile communication application unit (MAP) in an asynchronous mobile communication system (UMTS) including the voice mailbox system for providing a voice mail service to a terminal and a visit mobile exchange for setting up a call from the aisle mobile switching center to the voice mailbox system. In the voice mail service providing method using a protocol, In case of early deadline, The pathway mobile switching unit inquires about the VSRN of the called terminal corresponding to the number input to the calling terminal to the home location register; The home location register is a second step of determining whether or not the incoming terminal is in a call-free state, A third step of assigning a VSRN and sending a response message including the VSRN to the aisle transit switch when it is determined that the call is unavailable; And the fourth step of determining the voice mailbox system in which the called terminal is registered from the VSRN, and setting up a call to the voice mailbox system via the visited mobile exchange. The method of claim 2, As a result of determining the inability to talk in the second process, if the call is not in a disabled state, The home location register is a fifth step of determining an optimal path condition; If it is determined that the optimal path condition determines that the information request procedure of the called terminal according to the optimal path can be processed, the home location register obtains registration information of the called terminal from the visitor location register, allocates a VSRN, Transmitting a response message including the VSRN to the path transfer switch; And the seventh step of determining the voice mailbox system in which the called terminal is registered from the VSRN, and setting up a call to the voice mailbox system via the visited mobile exchange. The method of claim 3, wherein As a result of determining the optimal route condition of the fifth process, when the information request procedure of the called terminal by the optimal route cannot be processed, the home location register obtains the called subscriber roaming number (MSRN) from the visitor location register. Process, The home location register assigns a VSRN and sends a response message including the VSRN to the path mobile switchboard; And the passage mobile switch determines the voice mailbox system in which the called terminal is registered from the VSRN, and sets up a call to the voice mailbox system via the visit mobile switch. A passage mobile exchange for setting up a call from an originating terminal to a called terminal, a home location register for permanently storing the location information of the called terminal, a visitor location register for temporarily storing the location information of the called terminal, and the originating call Mobile communication application unit (MAP) in an asynchronous mobile communication system (UMTS) including a voice mailbox system for providing a voice mailbox service to a terminal and a called party mobile exchange for setting up a call from the aisle mobile switching center to the voice mailbox system. In the voice mail service providing method using a protocol, In case of Late VMS call unavailable, The passage mobile switching unit inquires about the VSRN of the called terminal corresponding to the number input to the calling terminal to the home location register; The home location register obtains the called subscriber roaming number (MSRN) from the visitor location register, sends a response message to the aisle mobile switching center, and the aisle mobile switching center establishes a call to the visitor location registrar; , The visitor location register is a third process of determining an optimal route condition; As a result of the determination of the optimal path condition, when the information request procedure of the called terminal according to the optimal path can be processed, the aisle transit switch is assigned a VSRN from the home location register, and a voice in which the called terminal is registered from the VSRN. And determining a mailbox system and setting up a call to the voice mailbox system via the visited exchange. The method of claim 5, As a result of determining the optimal path condition of the third process, when the information request procedure of the called terminal by the optimal path cannot be processed, The visitor location register may include obtaining a VSRN from the home location register, determining a voice mailbox system in which a called terminal is registered from the VSRN, and setting up a call to the voice mailbox system via the visited exchange. Characterized in that the method. A passage mobile exchange for setting up a call from an originating terminal to a called terminal, a home location register for permanently storing the location information of the called terminal, a visitor location register for temporarily storing the location information of the called terminal, and the originating call Mobile communication application unit (MAP) in an asynchronous mobile communication system (UMTS) including a voice mailbox system for providing a voice mailbox service to a terminal and a called-side mobile exchange for setting up a call from the aisle mobile switching center to the voice mailbox system. In the voice mail service providing method using a protocol, During an Early VMS call condition, The passage mobile switching unit inquires about the VSRN of the called terminal corresponding to the number input to the calling terminal to the home location register; The home location register includes a second step of determining an optimal path condition; If it is determined that the optimal path condition determines that the information request procedure of the called terminal by the optimal path can be processed, the home location register obtains registration information of the called terminal from the visitor location register, allocates a VSRN, Sending a response message including the VSRN to the pathway mobile exchange, And the fourth step of determining the voice mailbox system in which the called terminal is registered from the VSRN, and setting up a call to the voice mailbox system via the visited mobile exchange. The method of claim 7, wherein As a result of determining the optimal path condition of the third process, when the information request procedure of the called terminal by the optimal path cannot be processed, The visitor location register may include obtaining a VSRN from the home location register, determining a voice mailbox system in which a called terminal is registered from the VSRN, and setting up a call to the voice mailbox system via the visited exchange. Characterized in that the method. A passage mobile exchange for setting up a call from an originating terminal to a called terminal, a home location register for permanently storing the location information of the called terminal, a visitor location register for temporarily storing the location information of the called terminal, and the originating call Mobile communication application unit (MAP) in an asynchronous mobile communication system (UMTS) including a voice mailbox system for providing a voice mailbox service to a terminal and a called-side mobile exchange for setting up a call from the aisle mobile switching center to the voice mailbox system. In the voice mail service providing method using a protocol, During Late VMS call conditions, The passage mobile switching unit inquires about the VSRN of the called terminal corresponding to the number input to the calling terminal to the home location register; The home location register obtains the called subscriber roaming number (MSRN) from the visitor location register, sends a response message to the aisle mobile switching center, and the aisle mobile switching center establishes a call to the visitor location registrar; , The visitor location register is a third process of determining an optimal route condition; As a result of the determination of the optimal path condition, when the information request procedure of the called terminal according to the optimal path can be processed, the aisle transit switch is assigned a VSRN from the home location register, and a voice in which the called terminal is registered from the VSRN. And determining a mailbox system and setting up a call to the voice mailbox system via the visited exchange. The method of claim 9, As a result of determining the optimal path condition of the third process, when the information request procedure of the called terminal by the optimal path cannot be processed, The visitor location register may include obtaining a VSRN from the home location register, determining a voice mailbox system in which a called terminal is registered from the VSRN, and setting up a call to the voice mailbox system via the visited exchange. Characterized in that the method. A passage mobile exchange for setting up a call from an originating terminal to a called terminal, a home location register for permanently storing the location information of the called terminal, a visitor location register for temporarily storing the location information of the called terminal, and the originating call Mobile communication application unit (MAP) in an asynchronous mobile communication system (UMTS) including a voice mailbox system for providing a voice mailbox service to a terminal and a called-side mobile exchange for setting up a call from the aisle mobile switching center to the voice mailbox system. In the voice mail service providing method using a protocol, In Late VMS no response condition, The passage mobile switching unit inquires about the VSRN of the called terminal corresponding to the number input to the calling terminal to the home location register; The home location register obtains the called subscriber roaming number (MSRN) from the visitor location register, sends a response message to the aisle mobile switching center, and the aisle mobile switching center establishes a call to the visitor location registrar; , The visitor location register is a third process of determining an optimal route condition; As a result of the determination of the optimal path condition, when the information request procedure of the called terminal according to the optimal path can be processed, the aisle transit switch is assigned a VSRN from the home location register, and a voice in which the called terminal is registered from the VSRN. And determining a mailbox system and setting up a call to the voice mailbox system via the visited exchange. The method of claim 11, As a result of determining the optimal path condition of the third process, when the information request procedure of the called terminal by the optimal path cannot be processed, The visitor location register may include obtaining a VSRN from the home location register, determining a voice mailbox system in which a called terminal is registered from the VSRN, and setting up a call to the voice mailbox system via the visited exchange. Characterized in that the method. A passage mobile switch for setting up a call from an originating terminal to a called terminal, a home location register for permanently storing the location information of the called terminal, a voice mailbox system for providing a voice mail service to the calling terminal, and the passage movement Claims [1] A method for providing a voice mailbox service using a mobile communication application unit (MAP) protocol in an asynchronous mobile communication system (UMTS) including a called party mobile exchange for setting up a call from an exchange to the voice mailbox system. When inputting the characteristic code for the VMS search to the calling terminal, Obtaining, from the home location register, a VSRN corresponding to the number input to the originating terminal; And the passage mobile switch determines the voice mailbox system in which the called terminal is registered from the VSRN, and sets up a call to the voice mailbox system via the visit mobile switch. The method of claim 13, The feature code for the VMS search in the calling terminal is configured with the number of the calling terminal.