KR100321786B1 - Implementation method of pilot directory number for mobile communication network - Google Patents

Abstract

1. TECHNICAL FIELD OF THE INVENTION

The present invention relates to a method of implementing a representative number service in a mobile communication system and a computer-readable recording medium having recorded thereon a program for realizing the method.

2. The technical problem to be solved by the invention

The present invention, by establishing a database for the representative number in the home location register in the mobile communication system, and attempts to connect to the member in the idle state that can be connected at the time of the incoming call to the representative number in order to connect the call to the member that successfully connected, The present invention provides a method of implementing a representative number service for allowing several mobile phones to be received by one mobile phone number and a computer-readable recording medium having recorded thereon a program for realizing the method.

3. Summary of Solution to Invention

The present invention is a method for implementing a representative number addition service in a mobile communication system, comprising a plurality of subscribers wishing to add a representative number to one representative number, and a phone number (MIN) of the representative number members in the home location register. A first step of establishing a representative number database including a member number; When the incoming call is requested by the representative number, the home location register searches and selects the representative number member based on the representative number database, but requests the routing information sequentially to the switching station where the selected representative number member is roaming, and is at rest. Selecting a representative member of the second step; And a third step of recording the selected representative number member as the last talked member in the representative number database, and returning the routing information to the calling exchange office to set a call path to the selected representative number member.

4. Important uses of the invention

The present invention is used for the representative number service of the mobile communication system.

Description

Implementation method of representative number service in mobile communication system {IMPLEMENTATION METHOD OF PILOT DIRECTORY NUMBER FOR MOBILE COMMUNICATION NETWORK}

The present invention implements a representative number that can represent a group by introducing a representative number concept of a wired network in a mobile communication system, a method of implementing a representative number service to allow multiple mobile phones to be received by a single mobile number; A computer readable recording medium having recorded thereon a program for realizing the method.

In the conventional mobile communication network, due to technical limitations due to the characteristics of the network, a representative number such as a wired network could not be provided. The reason why the concept of the representative number, which allows multiple mobile phones to be called by one mobile phone number, is not introduced in the mobile communication network is that subscriber information is separated from the switching center (MSC) due to the characteristics of the mobile communication network. This is because there was a technical difficulty to realize the move.

A representative number is a number that allows a number of callers to talk with one number. That is, a plurality of telephones are connected to the representative number, and when dialed with the representative number, any idle terminal is connected.

The subscriber of the fixed-line network is fixed in one place and may have the subscriber's information at the switching center serving the area. Therefore, in the wired network, providing the representative number service requires work only at the exchange.

However, unlike wired networks, subscribers of mobile communication networks continue to move, so the exchange may not have subscriber information permanently. For this reason, there is a home location registrar (HLR) in the mobile network, so that subscriber information is managed separately from the switching center, and when the subscriber moves to the area of the switching center serving a specific area, the switching center becomes a home location register. The subscriber registers that the subscriber is in his or her area, obtains the subscriber's information, and stores it in the Visitor Location Register (VLR).

There are many members moving in the representative number, and the representative number service, which needs to connect members by searching for members scattered in various regions when the incoming call is received by the representative number, was difficult to implement due to these characteristics of the wired network and the mobile communication network.

The mobile communication network has an additional service similar to the representative number. The network protocol standard (IS41: revision C) defines 'FA (Flexible Alerting)', 'MAH (Mobile Access Hunting)', and the virtual private network (VPN). Additional services such as: Virtual Private Network are being used.

'FA' is a supplementary service that allows a subscriber to register a number of transfer phone numbers and connects the call to the first connected number by calling the registered number at the same time when the subscriber receives a call.

'MAH' is an additional service that a subscriber can register a plurality of transfer phone numbers and attempt to transfer sequentially when the subscriber does not answer the call and connect to the number answered by the subscriber.

'VPN' is an add-on service that allows multiple subscribers to be grouped in a group so that they can make calls to arbitrary speed numbers. It can be said to have introduced the concept of Cellular PABX in the mobile communication network.

'FA' and 'MAH' are similar in concept to the representative number, but there are some differences from the representative number. For example, 'FA' at the same time, 'MAH' notifies the called party according to the registered order and the number of members is large, but the representative number is distributed evenly to any phone according to the implementation method. Incoming can be induced. On the other hand, the 'VPN' is specified by a specific subscriber in the group to call, but the representative number is different from the representative number in that it automatically connects to any subscriber.

Therefore, a supplementary number that is not supported by the existing mobile phone supplementary services is required to provide a representative number service providing method that can receive a plurality of mobile phones to a single mobile phone number in the mobile communication network.

The present invention has been made in order to meet the above requirements, the mobile communication system to establish a database for the representative number in the home location register, and attempts to connect to the member in the idle state that can be connected when the incoming call to the representative number By connecting a call to a member who has successfully connected to the service, a method of implementing a representative number service for allowing several mobile phones to be received by one mobile phone number, and a computer-readable recording medium recording a program for realizing the method. The purpose is to provide.

1 is an exemplary configuration diagram of a mobile communication system to which the present invention is applied.

2 is a flowchart illustrating a call processing procedure between a general mobile subscriber and a mobile subscriber;

Figure 3 is an embodiment flow diagram for a call processing process of the representative number service implementation method according to the present invention.

4 is a flowchart illustrating another embodiment of a call processing process in a representative number service implementation method according to the present invention;

5 is a flowchart illustrating a call processing process for implementing a representative number at an originating exchange in a representative number service implementation method according to the present invention;

Figure 6a and 6b is an embodiment flow diagram for a call processing process for the implementation of the representative number in the destination switching station of the representative number service implementation method according to the present invention.

7 is a flowchart illustrating a call processing process for implementing a representative number in a home location register in a representative number service implementation method according to the present invention;

8 is a flowchart illustrating an embodiment of a call resetting / call transfer process for a representative number in a home location register in a representative number service implementation method according to the present invention.

* Explanation of symbols for the main parts of the drawings

11 mobile station (MS) 12 base station (BSC)

13: control station (BSC) 14: exchange station (MSC)

15: Visitor Location Register (VLR) 16: Home Location Register (HLR)

In order to achieve the above object, the present invention provides a method for implementing a representative number addition service in a mobile communication system. A first step of establishing a representative number database including a telephone number (MIN) and a member number; When the incoming call is requested by the representative number, the home location register searches and selects the representative number member based on the representative number database, but requests the routing information sequentially to the switching station where the selected representative number member is roaming, and is at rest. Selecting a representative member of the second step; And a third step of recording the selected representative number member as the last talked member in the representative number database, and returning the routing information to the calling exchange office to set a call route to the selected representative number member. In addition, the present invention attempts to sequentially connect to all the representative number members when the representative number member is busy or does not answer the phone at the time of performing the second step, and fails in the connection failure with all the members. It is characterized in that it further comprises a fourth step of treating as considered.

The present invention for achieving the above object, in a mobile communication system having a processor, a plurality of subscribers wishing to add a representative number service in a single representative number, the phone number (MIN) of the representative number members in the home location register A first function of establishing a representative number database including a member number; When the incoming call is requested by the representative number, the home location register searches and selects the representative number member based on the representative number database, but requests the routing information sequentially to the switching station where the selected representative number member is roaming, and is at rest. A second function of selecting a representative number member of; And recording a program for realizing a third function of recording the selected representative number member as the last talked member in the representative number database and returning the routing information to the calling exchange office to establish a call path with the selected representative number member. A computer-readable recording medium is provided. The present invention has established a DB for a representative number in HLR and VLR and defined a call processing procedure for the representative number in order to implement a representative number in a mobile telephone network. Consists of a number of members. Each member has a unique MIN and has the same subscriber profile as a general subscriber, so it can record information such as location information supplementary service. Therefore, the representative number is frequently mobile and binds a plurality of mobile subscribers having similar characteristics to the representative number and sequentially connects the calls to them. Each member has a unique MIN, so you can call a specific member directly, or call your own MIN. When a call arrives at a representative number, HLR will call the MSC roaming by the called member selected by the rule. Request routing information. At this time, if the member is busy or does not answer the phone, the connection is attempted to the next member, and if connected, the last member is recorded in the HLR DB, and the routing information is returned to the calling exchange to establish a call.

The above objects, features and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is an exemplary configuration diagram of a mobile communication system to which the present invention is applied.

The mobile communication system includes a mobile station (MS) (11), a base station (BTS) (12), a base station controller (BSC) (13), a mobile station (MSC) (Mobile Swtching Center) (14). ), A Visitor Location Register (VLR) 15, and a Home Location Register (HLR) 16.

The mobile station 11 is a terminal which a person can carry and communicate freely, and is within a range of an arbitrary base station 12, and the information of the mobile station 11 is controlled by the base station 12 and the control station 13 controlling the same. Is transmitted to the switching center 14, and the information transmitted from the switching center 14 is transmitted to the terminal 11 via the base station 12 and the control station 13.

A base station (BS) is composed of a base station (BTS) 12 and a control station 13.

The base station 12 connects a mobile station (MS) 11 to the control station 13, and includes a digital channel unit (DCU), a timing / frequency control unit (TCU), and a radio frequency. Device (RFU: Radio Frequency Unit), and Global Positioning System (GPS).

In addition, the base station 12 performs a wired / wireless conversion function of communicating with the mobile station 11 over the air and communicating with the control station 13 by wire.

The control station 13 connects the base station 12 to the switching center 14 to coordinate the connection between the base stations 12, to support a plurality of base stations 12, and to communicate with the base station 12 and the switching station 14 Signal processing function.

The exchange station 14 connects a call when the mobile subscriber makes or receives a call, connects with the control station 13 to perform a call setup and release function of the mobile station 11, and the call processing and additional services. It performs various functions and performs interworking with other networks.

The visitor location register 15 is a database that stores information of visit subscribers in the area serviced by the switching center 14, and the information of the mobile station 11 and the subscriber whose location is registered to the area in charge thereof is transferred from the home location register 16. It is retrieved and stored temporarily, and mounted in the exchange station 14.

The home location register 16 is a database that stores permanent information of the mobile station 11 and subscribers, location information, and additional service information. The home location register 16 interacts with the switching center 14 and the visitor location register 15 to process a call. And perform various functions related to additional services and control services.

Usually there can be multiple home location registers 16 in one service network, and one home location register 16 can be connected with one or more exchange offices 14 / visitor location registers 15, one A plurality of base stations (BS) may be connected to the switching center 14.

FIG. 2 is a flowchart illustrating a call processing process between a general mobile subscriber and a mobile subscriber, and shows a procedure of making a call between a typical mobile subscriber and a mobile subscriber.

As shown in Fig. 2, in general, a procedure in which a call is made between a mobile subscriber and a mobile subscriber, first, in a calling party, a specific subscriber calls the mobile subscriber (201).

Thereafter, the originating exchange transmits a location request message (LOCREQ: Location Request Invoke) to the home location register 16 of the called subscriber and requests routing information from the called exchange serving the area where the subscriber is located (202).

Next, the home location register 16 transmits a routing request message (ROUREQ: Routing Request Invoke) to the destination switching center serving the area where the destination subscriber is located and requests a routing number for establishing a call to the subscriber (203). Subsequently, the destination exchange station serving the area where the called party is located transmits a routing request response message (routreq: Return Result) to the home location register 16 to inform the routing number for call setup (204).

Subsequently, the home location register 16 returns the routing number to the originating exchange through a location request return message (locreq) to allow the call to be processed (205).

Finally, the originating switching center uses the routing number returned from the home location register 16 to establish a call path to the destination switching center serving the area where the incoming subscription is located so as to make a call between the subscribers (206).

Now, a method of implementing the representative number service that can be received by a plurality of mobile phones with one mobile phone number according to the present invention will be described in more detail.

Representative number refers to a phone number that allows a number of callers to call one number. This representative number (XXX-YYYY) can be connected to a number of incoming calls and has their own sequence number.

If the subscriber dials the representative number, the incoming call is connected to the telephone of the number that can be called.

In order to implement the representative number, first, a representative number database satisfying the following conditions must be established in the home location register 16, and the representative number (representative number Pilot Directory Number) and the subscriber in the subscriber profile according to the implementation method. A field should be added to indicate whether the subscriber is a representative number subscriber.

The conditions for establishing a representative number database for implementing the representative number are as follows.

First, the home location register 16 should accept the representative number and be able to register / delete / change / output the representative number.

Second, the representative number is managed by database a certain number of members.

Third, the representative number manages a unique member number, a mobile identification number (MIN) of the same representative number, a member flag last called, and other information. Here, the mobile station identification number is an identification number assigned to the mobile station 11 and is a unique number of the mobile station 11 used to call or recognize the mobile station 11 in the mobile communication network.

Fourth, each member has the same subscriber DB as the general subscriber.

Looking at the configuration of the representative number database table that satisfies the above conditions, it is shown in (Table 1).

Secondly, in order to implement the representative number, one member in the idle state is selected during the call processing process that is received by the representative number based on the representative number database established in the home location register 16.

In the process of selecting a member in idle state, there may be various types of selection depending on the characteristics of the representative number, but it may be said that it is common to select a member in idle state after the last incoming member. In addition, the criteria for selecting members can be changed as needed, such as always trying to set up calls in a certain order of members, or calling a certain number of members at the same time and connecting them to the first responding member. have.

Third, to implement the representative number, route the call to the selected representative number member.

As described above, the representative number service implementation method according to the present invention, to implement the representative number in the mobile communication network to build a database for the representative number in the home location register 16, and defines a call processing procedure for the representative number do. Here, the representative number has a plurality of members and has the same subscriber profile as the general subscriber, so that information such as location information and additional services can be recorded.

In the present invention, if the representative number is called, the home location register 16 requests the routing information to the switching center 14 where the called member selected by the rule is roaming. At this time, if the member is busy or does not answer the phone, the connection is attempted to the next member, and if connected, the last member is recorded in the database of the home location register 16, and the routing information is returned to the calling exchange. Set up the call.

Now, a call processing procedure for implementing the representative number in the mobile communication network will be described in detail.

Figure 3 is an embodiment flow diagram for a call processing process of the representative number service implementation method according to the present invention, when the call to the representative number to connect the call to the member after the last call in the representative number idle member Assuming the situation, the call processing procedure up to the establishment of a call path is shown.

In this embodiment, four members are used, all of which are housed in the same home location register 16 as mobile subscribers, all roaming to the other switching center 14. Here, the home location register (16) knows that the first and second members can not receive the call before the call is set up and select the next member, the third member is a call is set up and waiting for a response from the member, but there is no response Assume that the fourth member answers and completes the call.

In general, if it is impossible to connect to the selected member, it attempts to connect to the next member. In this way, it attempts to connect to a certain number of members (maximum members). However, if all connections cannot be made, the call processing is considered as failed.

As shown in Fig. 3, the first and second members of the representative number service implementation method according to the present invention know that the incoming state is impossible before the call is set to select the next member, the third member sets the call and the member In the case of waiting for a response but there is no response, the call processing process assuming a situation in which a fourth member answers and completes a call is first performed when the mobile subscriber attempts to call the representative number (301). It sends a location request message (LOCREQ: Location Request Invoke) to the home location register 16 that accepts the request for routing information (302).

Subsequently, the home location register 16 recognizes that the called number is the representative number, searches for the member in the representative number, and services the area where the member is located to obtain routing information for connecting the call path to the selected representative number member. A routing request message (ROUTREQ: Routing Request Invoke) is transmitted to the destination exchange 1 (303). At this time, in order to have the calling exchange station request new routing information to the home location register 16 in case of a busy or no response after connecting to the called subscriber, the calling trigger (Busy), paging to the termination trigger. It is set to trigger in case of No Page Response or Routing Failure, and transmits the information of the active member in the LegInfomation.

Next, because the selected member is currently busy, the routing exchange 1 transmits a routing request response message including an access denied reason (= Busy) to the home location register 16. The member is currently in a call and informs that the connection is impossible (304).

Subsequently, the home location register 16 transmits a routing request message (ROUTREQ: Routing Request Invoke) to the destination switching center 2 serving the area in which the member is located in order to obtain routing information of the next member (305). At this time, in order to have the calling exchange station request new routing information to the home location register 16 in case of a busy or no response after connecting to the called subscriber, the calling trigger (Busy), paging to the termination trigger. It is transmitted by setting to trigger in case of No Page Response or Routing Failure, and transmits by setting information of the member currently in call processing in LegInfomation.

Subsequently, since the selected member does not respond to the primary paging, the routing request response message including an access denied reason (= NoPageReponse) from the destination exchange station 2 to the home location register 16 is returned. ) To indicate that the member is currently unreachable (306).

Thereafter, the home location register 16 transmits a routing request message (ROUTREQ: Routing Request Invoke) to the destination switching center 3 serving the area where the next member is located to obtain routing information of the next member. At this time, in order to have the calling exchange station request new routing information to the home location register 16 in case of a busy or no response after connecting to the called subscriber, the calling trigger (Busy), paging to the termination trigger. It is transmitted by setting to trigger in case of No Page Response or Routing Failure, and transmits by setting information of the member currently in call processing in LegInfomation.

Next, since the member responds to the primary paging, the destination switching center 3 allocates a routing number and transmits a routing number (TLDN) through a routing request response message (routreq: Routing Request Return Result) to the home location register 16 ( 308).

Subsequently, the home location register 16, which has received the routing number from the destination switching center 3, returns the routing number (TLDN) to the calling switching center via a location request response message (locreq: Location Request Return Result) (309). At this time, in case of a busy or no response after connecting to the called subscriber, in order for the originating exchange to request new routing information from the home location register 16, the home location register 16 sends a MAH (value) to the DMH_Redirection Indicator. = 16) and set information on the call of the representative number member currently in call processing in Group Information. By setting and sending NoAnswerTime, if the called party does not respond within that time, the originating switching center may request the home location register 16 to reset the call.

Subsequently, a call path is set up to the destination switching center 3 by using the routing number received from the home location register 16 at the calling switching center (310). At this time, the originating subscriber hears a ring tone through the handset, and the destination exchange station 3 informs that the incoming call is received by the terminal of the called subscriber.

If the selected member does not answer the phone (in this embodiment, it is assumed that the call is set up to the third member and waited for a response but there is no answer), the reason for resetting from the destination exchange 3 to the originating exchange (Redirection Reason) (= NoAnswer) and Redirection Request Invoke (REDREQ), which includes the leg information (LegInformation) of the member currently in process of call processing, indicates that the member is not connected because he did not answer the call (311).

Subsequently, the originating switching center sets information such as RedirectionReason, GroupInfomation, and PilotNumber to the home location register 16 to obtain routing information of the next member. Transfer To Number Request) is transmitted (312). Subsequently, the next member is selected from the home location register 16 that has received the call forwarding number request message (TTNR), and the routing request message is sent to the destination switching center 4 serving the area where the member is located to obtain the routing information of the member. ROUTREQ: Routing Request Invoke) is transmitted (313). In this case, in order to have the calling exchange station request new routing information to the home location register 16 in the case of a busy or no response after connecting to the called subscriber with a call, it is busy and paging to a termination trigger. In case of No Page Response or Routing Failure, it is set to be triggered and transmitted. In LegInfomation, the information of the member currently in call processing is transmitted.

Next, since the member responds to the primary paging, the destination exchange station 4 allocates a routing number and transmits a routing number (TLDN) through a routing request response message (routreq: Routing Request Return Result) to the home location register 16 ( 314).

Subsequently, the home location register 16, which has received the routing number from the destination switching center 4, returns the routing number (TLDN) to the originating switching center through a Transfer To Number Request Return Result (ttnr) (315). . At this time, in order to make the calling exchange request new routing information to the home location register 16 when a busy or no answer occurs after connecting to the called subscriber with the call, MAH (value ==) in the DMH_Redirection Indicator in the home location register 16 is used. 16) and set information on the call of the representative number member who is currently in call processing in GroupInformation. By setting and sending NoAnswerTime, if the called party does not respond within that time, the originating exchange can request the home location register 16 to make a call reset.

Subsequently, the originating exchange sends a call reconfiguration request response message (redreq: Redirection Request Return Result) to the destination exchange 3 (316).

Thereafter, the calling switching center disconnects the call path set as the called switching station 3 (317).

Next, a call path is set up to the destination switching center 4 by using the routing number received from the home location register 16 at the calling switching center (318). At this time, the originating subscriber hears a ring tone through the handset, and the destination exchange station 4 informs that the incoming call is received to the terminal of the called subscriber.

The called party then answers and the call begins.

Finally, when the call ends, the originating exchange station and the destination exchange station 4 terminate the call (319).

In the present embodiment, the home location register 16 may repeat the process between steps '303' and '318' several times. If the routing subscriber fails to obtain the routing information due to the receiver, the maximum number of retries is limited to the number of members within the representative number.

After setting the call, the process between step 311 and step 318, which indicates call processing for the case of no answer, is optional, and is omitted in the implementation because it is cumbersome for the calling subscriber to wait for a long time. This can be done and the response latency can be adjusted.

The embodiments described above have been described assuming the most ideal case of the system.

Next, another embodiment according to the present invention will be described with reference to FIG. 4.

4 is a flowchart of another embodiment of the call processing process in the representative number service implementation method according to the present invention, in which the destination exchange station obtains a routing number of a new member from the home location register 16 and the visitor location register 15. ) Must also have information on the field and representative number (parent number) indicating that the current subscriber is a member of the representative number service. Here, the destination exchange station requests the routing number of the next member for the representative number if the called subscriber is a member of the representative number.

In another embodiment of the present invention, a representative number (XXX-293-8607) shown in Table 1 will be used for convenience. Here, four members (300-1002, 201-4376, 450-2154, 514-8490) are used, three of which are subscribers of the same home location register and the last one is subscribers of other home location registers, all of which are different. Assume a situation of roaming to the switching center 14.

In another embodiment of the present invention, the first and second members are not connected because the incoming call is impossible before setting the call path, and the third member sets the call path and waits for the member's response, but there is no response. Assume a situation where a call completes.

As shown in Figure 4, Figure 4 is a representative number service implementation method according to the present invention, the first and second members do not connect because the incoming call is not possible before setting the call path, the third member establishes the call path and the member's response The call processing process assuming a situation in which the fourth member responds and completes the call, first, when the mobile subscriber attempts to call the representative number (293-8607) (401), the call originates. The exchange transmits a location request message (LOCREQ: Location Request Invoke) to the home location register 1 having received the representative number, and requests routing information.

Subsequently, the home location register 1 recognizes that the called number is the representative number and searches for a member in the representative number. In this case, it is assumed that the called member has selected the member '300-1029', which is the dormant member next to the incoming subscriber who has recently succeeded in the representative number. Accordingly, the home location register 1 requests a routing request message to the destination exchange station 1 serving the area in which the member 300-1029 is located to obtain routing information for connecting the call path to the selected representative number member 300-1029. Routing Request Invoke) is transmitted (403).

Next, since the selected member 300-1029 is currently in a call, the routing request response message including an access denied reason (= Busy) from the destination exchange station 1 to the home location register 1 is not included. By transmitting a member is informed that the connection is not possible because the current call (404).

Subsequently, the home location register 1 transmits a routing request message (ROUTREQ: Routing Request Invoke) to the destination switching center 2 serving the area in which the members 201-4376 are located in order to obtain routing information of the next member.

Subsequently, since the selected members 201-4376 do not respond to the primary paging, the destination exchange 2 transmits a routing request response message (Accessure Return Return Result) including AccessDeniedReason (= NoPageReponse) to the home location register 1. Inform the member that the member is currently in a disconnectable state (406).

Thereafter, in order to obtain routing information of the next member 450-2384, the home location register 1 transmits a routing request message (ROUTREQ: Routing Request Invoke) to the destination switching center 3 serving the area where the next member is located.

Next, since the member responds to the primary paging, the destination exchange station 3 allocates a routing number and transmits a routing number (TLDN) through a routing request response message (routreq: Routing Request Return Result) to the home location register 1 (408). .

Thereafter, the home location register 1, which has received the routing number from the destination switching center 3, returns the routing number (TLDN) to the calling switching center through a location request response message (locreq: Location Request Return Result) (409).

Subsequently, a call path is set up to the destination switching center 3 using the routing number received from the home location register 1 at the calling switching center 410. At this time, the originating subscriber hears a ring tone through the handset, and the destination exchange station 3 informs that the incoming call is received by the terminal of the called subscriber.

If the selected member 450-2384 does not answer the call, the transfer number request message (TTNR: Transfer To Number) is used to obtain routing information of the next member from the destination exchange station 3 to the home location register 1 because it is a representative number member. Request (411).

After that, the next member (514-8490) is selected from the home location register 1 that has received the transfer number request message (TTNR), and since the selected member is subscribed to another home location register 2, the subscriber number is returned to the destination exchange station 3 as it is. (412).

Next, a destination request message (LOCREQ: Location Request Invoke) is sent to the home location register 2 that receives the member in order to obtain routing information from the destination exchange station 3 receiving the number of the new members 514-8490 (413). Subsequently, when the home location register 2 transmits a routing request message (ROUTREQ: Routing Request Invoke) to the destination switching center 4 serving the area where the member is located to obtain the routing information of the member (414), the member 1 at the destination switching center 4 In response to the secondary paging, a routing number is assigned to the home location register 2 and the routing number (TLDN) is transmitted through a routing request response message (routreq: Routing Request Return Result) (415).

Subsequently, the home location register 2 having received the routing number from the destination switching center 4 returns the routing number (TLDN) to the destination switching center 3 through a location request response message (locreq: Location Request Return Result) (416).

Thereafter, the destination exchange station 3 establishes a new call path to the destination exchange station 4 using the routing number received from the home location register 2 (417). At this time, the outgoing subscriber hears a ring tone through the handset, and the destination exchange station 4 announces that the call is coming to the terminal of the called subscriber.

The called party then answers and the call begins.

Finally, when the call ends, the calling exchange and the destination exchange 4 end the call (418).

In another embodiment of the present invention, the home location register (incoming MSC) may repeat the process between steps '403' and '417' several times. If the routing subscriber fails to obtain the routing information, the number of retries is limited to the number of members in the representative number.

In addition, the process between the '411' step and the '417' step indicating the call processing for the case of no answer after the call setting is optional, and it can be omitted in the implementation because it has a long time for the calling subscriber to wait for a long time. Do.

So far, the representative number call processing procedure has been described.

Each member of the representative number also has a unique subscriber number and can make calls to and from the subscriber. If, when attempting to call a specific member's subscriber number will be called in the above-described process in FIG.

Now, a process of each component for performing the call processing procedure will be described with reference to FIGS. 5 to 8.

FIG. 5 is a flowchart illustrating a call processing process for implementing a representative number at an originating exchange in a representative number service implementation method according to the present invention, and shows a procedure for the originating exchange to perform the representative number service.

As shown in Figure 5, the call processing process for the implementation of the representative number in the originating switching center of the representative number service implementation method according to the present invention, if the caller first dials the mobile subscriber number (501), the exchange station 14 In step 502, routing information is requested from the home location register 16 where the incoming mobile telephone subscriber's station number is received to the switching center 14 where the subscriber is roaming. At this time, the home location register 16 may return normal routing information to the originating switching center according to the state of the subscriber, or may reject the return of routing information. If the called subscriber number is the representative number, the home location register 16 will return the routing number of the member currently in the idle state among the members of the representative number. Here, the routing number is the mobile phone number of the member if the caller is a mobile subscriber and roams to the same exchange 14 as the member, and the routing number to the switching station 14 if the other switching center 14 is the same.

Thereafter, it is checked whether the switching center 14 has received normal routing information from the home location register 16 (503).

As a result of the check, if the normal routing information is not received from the home location register 16, it is processed as a routing impossible due to an abnormal situation (504).

As a result of the check, if the routing number is normally received from the home location register 16, a call path is set from the originating exchange station to the destination exchange station (505), and it is analyzed whether the call path setting is successful (506).

As a result of the analysis, if the call is successfully established, the receiver waits for a response of the called member (507). At this time, it is checked whether there is a response of the called member (508).

If the call setup fails or there is no answer from the called member, the originating exchange may detect this or the called exchange may request a call reset through the RedReq message to the originating exchange. It is determined whether to request a transfer (509).

As a result of determination, when the home location register 16 returns routing information for the representative number member (502), the trigger is set to request resetting to the home location register 16 when the call is not completed. Request call transfer information to the location register (16) (510). After that, the home location register 16 which has received the call resetting request returns the routing information of the next member. Therefore, it is checked at step 503 whether the switching center 14 that has received this has received the normal routing information from the home location register 16.

However, if the called member answers, the call is completed and the call ends normally with the end of the call (511,512).

6A and 6B are flowcharts illustrating an example of a call processing process for implementing a representative number in a destination exchange station in a method for implementing a representative number service according to the present invention, and illustrating a procedure for the destination exchange station to provide a representative number service.

In FIG. 5, when the caller requests the home location register 16 for routing information about the called party dialed (502), the home location register 16 selects a member, and the home location register 16 indicates that the caller is a mobile subscriber. If the user is roaming to the same exchange 14 as the member, the mobile phone number of the member is returned to the calling exchange, but if the other exchange, the called member requests routing information to the exchange 14 being roaming.

As shown in Figure 6a and 6b, the call processing process for the representative number implementation in the destination switching center of the representative number service implementation method according to the present invention, when the routing information of the mobile subscriber is requested from the home location register 16 (601), the destination exchange station analyzes whether the called member is busy (602), if the call is busy, checks whether the call waiting service is in use (603), and if not, determines whether there is a paging response from the called party (604). ).

If the called party is not busy and there is a paging response from the called party, or if the called party is busy and using the call waiting service, the called office assigns a routing number and returns it to the home location register 16 (606).

On the other hand, the called party does not use the call waiting service while the called member is busy, or if the called member is not busy or does not respond to paging, it does not return the routing number because it is determined that the call is impossible.

After assigning a routing number, the destination exchange checks in real time whether there is a call setup request from the calling exchange, and if there is a call setup request (607), the call route is set up between the calling party and the caller will ring back. You will hear and wait for a response from the called party (608). In this case, by checking whether there is a response from the called party (609), if the called member is busy or there is no answer, the call reset may be requested to the home location register 16 or the calling exchange, that is, the calling exchange or the home location register ( 16), it is analyzed whether the call reset is required (612, 613).

If a call reset request is made to the originating exchange, the process transitions to step 509 to determine if a call transfer should be requested to the home location register 16.

On the other hand, the destination exchange station may request a call reset directly to the home location register (16), not the originating exchange station, by determining whether the destination member is a member of the representative number (614), if the destination member is a member of the representative number home location register After requesting the routing information (16) (615), the transition to the step (503) in which the switching center 14 receives the normal routing information from the home location register (16), and the receiving member is a member of the representative number; If not, a general call processing procedure is performed (616).

Thereafter, when a response to the call is received from the originating exchange, the call is released, and when the called member answers, the call is completed normally (610 and 611).

7 is a flowchart illustrating a call processing process for implementing a representative number in a home location register in a method for implementing a representative number service according to the present invention, in which the home location register 16 provides routing information of the representative number from the switching center 14; Represents a procedure for servicing a representative number when requested.

As shown in FIG. 7, the call processing process for implementing the representative number in the home location register in the representative number service implementation method according to the present invention, when receiving a routing information request from the originating exchange (701), requested routing information It is analyzed whether the subscriber number of the representative number (702).

As a result, if the subscriber number is not the representative number, the same call processing process as the general subscriber is performed (703).

As a result of the analysis, if the subscriber number is the representative number, the home location register 16 selects the next member of the last member who has recently called from the representative number database table (704), and sets the last call flag of this member (705). ). Thereafter, it is checked whether the representative number member is a subscriber of the same home location register 16 (706).

As a result of the check, if the member is a subscriber of another home location register 16, the member's subscriber number is returned to the calling exchange office (707) so that the calling exchange station can request routing information to the home location register 16 where the member is accommodated. do.

As a result of the check, if the member is a subscriber of the same home location register 16, it is determined whether the member is in a different exchange station from the calling subscriber by referring to the subscriber profile (708).

If it is determined that the caller is a mobile subscriber and roams to the same exchange 14 as the member, the subscriber's subscriber number is returned as it is (709).

As a result of the determination, if the member is roaming to the exchange 14 which is different from the sender, the home location register 16 requests the routing information of the member from the exchange 14 to check 710 for the success of the return (711). .

If the check result is successful, the routing information is returned to the originating switching center (713).

As a result of the check, if the incoming member is not receiving the routing information successfully due to a busy or other reason, check whether the member is the last member that can be selected (712). Step 704 selects the next member of the last called member, and notifies the calling exchange that the incoming exchange is not possible if it is the last member selectable (714).

8 is a flowchart illustrating a call resetting / call transfer process for implementing a representative number in a home location register in a method for implementing a representative number service according to the present invention, when a call processing is not normally performed with a representative number member. It describes the procedure for performing call resetting / transfer from an originating exchange or a destination exchange.

The call may not be completed during the call setup or after the call setup is established between the calling exchange and the called exchange. To this end, the home location register 16 sets a trigger on the originating exchange or the destination exchange to request a call transfer to the home location register 16 so that the call proceeds to the next member. There are two ways to do this: Group redirection by a group that triggers a call at the originating exchange to request a call transfer to the home location register 16, and triggers a call at the destination exchange to request a call reconfiguration to the calling exchange. There is a member redirection by a member requesting a call transfer to the home location register 16.

As shown in Figure 8, the call resetting / call transfer process for the implementation of the representative number in the home location register of the representative number service implementation method according to the present invention, first when a call transfer request is requested from the originating exchange (801) , The home location register 16 analyzes the transfer number requester operating as a member of the representative number or the transfer number request for the general subscriber based on the parameters (GRPINFO, PILOT, LEGINFO) of the transfer number request message (TTNR). (802)

As a result of the analysis, if the transfer is performed for the subscriber number, the same transfer processing routine is performed as the general subscriber (803).

As a result of the analysis, if the transfer is not the transfer of the subscriber number but the transfer of the representative number, after the last call is selected (804), after setting the selected member as the last call member (805), the representative number member It is checked whether is the subscriber of the same home location register 16 (806).

As a result of the check, if the member is a subscriber of another home location register 16, the member's subscriber number is returned to the calling exchange (807) so that the calling exchange can request routing information to the home location register 16 where the member is accommodated. do.

As a result of the check, if the member is a subscriber of the same home location register 16, it is determined whether the member is in a different exchange station from the calling subscriber by referring to the subscriber profile (808).

If it is determined that the caller is a mobile subscriber and roams to the same exchange 14 as the member, the subscriber's subscriber number is returned as it is (809).

As a result of the determination, if the member is roaming to the exchange 14 different from the sender, the home location register 16 requests the routing information of the member to the exchange 14 (810), and checks whether the return result is successful (811). .

If the check result is successful, the routing information is returned to the originating switching center (813).

As a result of the check, if the incoming member is not receiving the routing information successfully due to a busy or other reason, check whether the member is the last member that can be selected (812), and if the other member can be selected, select the next member after the last call. The process then transitions to step 804, and notifies the calling exchange that the incoming exchange is not possible if it is the last member selectable (814).

In the existing wired network, the representative number has been used as the number representing the group, but in the mobile communication network, due to technical difficulties, the representative number service could not be provided.

However, the present invention as described above is to supplement the part that the existing mobile phone supplementary service can not support by introducing the concept of the representative number of the wired network to the mobile communication network. That is, in addition to tying a number of mobile subscribers with frequent and similar characteristics to their representative numbers in order to connect them sequentially, each member has a unique MIN, so you can call specific members directly. It is also possible to send by MIN.

Accordingly, the present invention can satisfy various service requirements of subscribers who want a representative number service, such as the same medical doctor in a hospital, a counseling phone for a specific sales department, and the like. Can be stored on a readable medium (CD-ROM, RAM, ROM, floppy disk, hard disk, magneto-optical disk, etc.).

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

In the present invention as described above, a plurality of mobile subscribers having a similar nature and mobile in the mobile communication network can be connected to them sequentially by the representative number, so that each member has a unique phone number (MIN) It is possible to directly call a specific member or to make a call to its own MIN, which can satisfy various service requirements of a subscriber who wants a representative number service.

Claims (11)

A method for implementing a representative number additional service in a mobile communication system, A first step of constructing a representative number database including a phone number (MIN) and a member number of the representative number members in a home location register by binding a plurality of subscribers wishing for the representative number additional service to one representative number; When the incoming call is requested by the representative number, the home location register searches and selects the representative number member based on the representative number database, but requests the routing information sequentially to the switching station where the selected representative number member is roaming, and is at rest. Selecting a representative member of the second step; And A third step of recording the selected representative number member as the member who made the last call in the representative number database, and returning the routing information to the calling exchange office to set a call path to the selected representative number member; Representative number service implementation method in a mobile communication system comprising a. The method of claim 1, At the time of performing the second step, when the representative number member is busy or does not answer the call, the connection number is sequentially attempted to all the representative number members, and when the connection failure with all the members is regarded as a call failure, the fourth process is processed. step Representative number service implementation method in a mobile communication system further comprising. The method of claim 1, The representative number database, According to the implementation method, a representative number and a field indicating whether the subscriber is the representative number subscriber are added to the subscriber profile, but the home location register can accept the representative number and register / delete / change / output the representative number. It manages a certain number of members by database and manages unique member number, member's mobile station identification number (MIN), last called member flag, and other information in the same representative number. Representative number service implementation method in a mobile communication system comprising a. The method of claim 1, The process of selecting a member in the idle state of the second step, Preferably, the representative number service implementation method of the mobile communication system, characterized in that for selecting the member next to the last received member according to the representative number characteristics. The method according to any one of claims 1 to 4, The second step, A fifth step of, when the mobile telephone subscriber attempts to call the representative number, requesting routing information by transmitting a location request message (LOCREQ) to the home location register that has received the representative number at the calling exchange; Recognizing the fact that the called number is the representative number in the home location register and sequentially search for the members in the representative number, the destination exchange station for serving the area where the member is located to obtain routing information for connecting the call path to the selected representative number member Transmitting a routing request message (ROUTREQ) to the mobile station; A seventh step of transmitting a routing number (TLDN) through a routing request response message (routreq) to the home location registrar by allocating a routing number at the destination switching center serving the region where the member responded to paging is located; And An eighth step of returning a routing number (TLDN) to the originating switching center through a location request response message (locreq) at the home location register which has received the routing number from the destination switching center; Representative number service implementation method in a mobile communication system comprising a. The method of claim 5, Call processing for implementing the representative number in the originating exchange, When the caller dials a mobile subscriber's number, requesting routing information from the originating switching center to the destination switching station where the subscriber roams to the home location register in which the station number of the incoming mobile telephone subscriber is accommodated; A second step of checking whether the originating exchange has received normal routing information from the home location register; A third step of processing as a routing impossible due to an abnormal situation if the normal routing information is not received from the home location register as a result of the inspection of the second step; A fourth step of, if the routing number is normally received from the home location register as a result of the inspection of the second step, establishing a call path from the originating exchange station to the destination exchange station; A fifth step of waiting for a response of the called member to complete the call normally when the call is set successfully; And Step 6, if the call setup fails or there is no answer from the called member, after the call center requests the transfer information to the home location register, the process proceeds to the second step. Representative number service implementation method in a mobile communication system comprising a. The method of claim 6, Call processing for implementing the representative number in the destination exchange, When the routing information of the mobile subscriber is requested from the home location register, the destination exchange station analyzes whether the called member is busy and checks whether the call waiting service is in use. If not, the paging response is received from the called subscriber. A seventh process of determining whether there is any; An eighth step of assigning a routing number from the destination exchange station to the home location register if the called member is not in a call and there is a paging response from the called party or is busy and using a call waiting service; If the called member is busy and not using the call waiting service, or if the called member is not busy or there is no response to paging, the called party does not return the routing number to the home location register because it is determined that the called party is not available. process; A tenth step of, after allocating a routing number, checking whether a call setup request is made by the called exchange from the calling exchange in real time and waiting for a call setup and a response from the called member if there is a call setup request; An eleventh step of checking whether there is a response from the called member in the called exchange station; A twelfth step of requesting a call reset to the home location register or the originating switching station if the called member is busy or there is no answer as a result of the inspection of the eleventh step; And A thirteenth process of completing the call normally if the called member answers; Representative number service implementation method in a mobile communication system comprising a. The method of claim 7, wherein Call processing for implementing the representative number in the home location register, A 14th step of analyzing whether the subscriber number of the requested routing information is a representative number when receiving the routing information request from the originating exchange; A fifteenth step of performing a processing routine for the same routing information as the general subscriber, if the subscriber number is not the representative number; As a result of the analysis of step 14, if the subscriber number is the representative number, the home location register selects the next member of the member who has recently called in the representative number database table, and sets the last call flag of the member. 16 courses; A seventeenth step of checking whether the representative number member is a subscriber of the same home location register; As a result of the inspection of the seventeenth step, if the member is a subscriber of another home location register, the member's subscriber number is returned to the calling exchange so that the calling exchange can request routing information to the home location register where the member is accommodated. The seventeenth process; An eighteenth step of determining, if the member is a subscriber of the same home location register, whether the member is in a different exchange station from the calling subscriber by referring to the subscriber profile; A nineteenth step of returning the member's subscriber number as it is, if the caller is a mobile subscriber and roaming to the same exchange station as the member; A twenty-first step of requesting routing information of the member from the home location register to the switching station if the member is roaming to an exchange different from the sender, and checking whether the return result is successful; A twenty-first step of returning routing information to the originating exchange if the check result of the twentieth step is successful; And As a result of the inspection of step 20, if the called member is not receiving the routing information successfully due to a call or other reasons, check whether the member is the last member that can be selected, and if the other member can be selected, proceed to step 16. Twenty-second step of informing the calling exchange that the incoming exchange is impossible Representative number service implementation method in a mobile communication system comprising a. The method of claim 7, wherein Call resetting / call conversion process for implementing the representative number in the home location register, A 14th step of analyzing, if the call transfer request is requested from the originating exchange, whether the representative number having the parameters (GRPINFO, PILOT) of the call transfer number request message (TTNR) in the home location register; A fifteenth step of performing the same transfer processing routine as the general subscriber if the transfer of the subscriber number is a result of the analysis of the fourteenth step; As a result of the analysis of step 14, if the transfer is not the transfer of the subscriber number but the transfer of the representative number, after the last call is selected, the member is selected as the last call member, and the representative number member is A sixteenth step of checking whether the subscriber is the same home location register; As a result of the inspection in the sixteenth step, if the member is a subscriber of another home location register, the member's subscriber number is returned to the calling exchange so that the calling exchange can request routing information to the home location register where the member is accommodated. The seventeenth process; An eighteenth step of determining, if the member is a subscriber of the same home location register, whether the member is in a different exchange station from the calling subscriber by referring to the subscriber profile; A nineteenth step of returning the member's subscriber number as it is, if the caller is a mobile subscriber and roaming to the same exchange station as the member; A twenty-first step of requesting routing information of the member from the home location register to the switching station if the member is roaming to an exchange different from the sender, and checking whether the return result is successful; A twenty-first step of returning routing information to the originating exchange if the check result of the twentieth step is successful; And As a result of the inspection of step 20, if the called member is not receiving the routing information successfully due to a call or other reasons, check whether the member is the last member that can be selected, and if the other member can be selected, proceed to step 16. Twenty-second step of informing the calling exchange that the incoming exchange is impossible Representative number service implementation method in a mobile communication system comprising a. The method of claim 5, The representative number additional service, Practically, if you call the main number from the mobile network, you can call one of the many members, and each member in the main number can move with his or her own phone number (MIN), and call in and out of his / her own phone number. This is possible, and a representative number service implementation method in a mobile communication system, characterized in that a plurality of callers can call several representatives at the same time even if the call to the representative number at the same time. In a mobile communication system having a processor, A first function of tying a plurality of subscribers wishing to add a representative number to one representative number and constructing a representative number database including a phone number (MIN) and member numbers of the representative number members in a home location register; When the incoming call is requested by the representative number, the home location register searches and selects the representative number member based on the representative number database, but requests the routing information sequentially to the switching station where the selected representative number member is roaming, and is at rest. A second function of selecting a representative number member of; And A third function of recording the selected representative number member as the member who has made the last call in the representative number database, and returning the routing information to the calling exchange office to set a call path to the selected representative number member; A computer-readable recording medium having recorded thereon a program for realizing this.