KR100305733B1 - Method for providing addition services on based IS41.C protocol in mobile phone network - Google Patents

Abstract

The present invention relates to a method of providing an additional service using an IS41.C trigger in a mobile telephone network. The method of providing an additional service using an IS41.C trigger of a mobile telephone network includes a location registration request signal of a mobile telephone received from a mobile switching center. According to step 1, searching for additional service information of the mobile phone; Transmitting trigger information associated with the found additional service to the mobile switch; And checking a supplementary service corresponding to the trigger message received from the mobile switch and transmitting routing information corresponding to the trigger message to the mobile switch. Changes and adds the function control of a home location register (HLR) and provides the requested additional service from the mobile phone by using IS41.C trigger information in the mobile phone network to which a higher communication protocol such as IS41.C is applied. By providing routing information, which is call connection information with a service node, in the home location register (HLR), it is easier and more efficient to process and control routing information change and control for rapidly increasing various additional services. It is a very useful invention that makes it possible.

Description

Method for providing addition services on IS41C trigger in mobile phone network {based on IS41.C protocol in mobile phone network}

The present invention provides an additional subscriber-specific service requested by using an IS41.C trigger in a mobile phone network to which a higher communication protocol such as IS41.C, which specifies a function control between components in a mobile phone system, is applied. The present invention relates to an additional service providing method using an IS41.C trigger in a mobile telephone network.

FIG. 1 schematically shows the overall configuration of a general mobile telephone system, wherein the mobile telephone system includes a plurality of base stations (BTSs) wirelessly communicating with a mobile phone located in a communication area divided by sector. Base Station Tranceiver Subsystem (6 ₁ ..6y); A plurality of base station controllers (BSCs) 5 ₁ .. 5x for controlling the base stations; A plurality of mobile switching centers (MSCs) 3 ₁ .. 3n connected to the base station controller to exchange requested call signals; A plurality of Visitor Location Registers (VLRs) (4 ₁ ..4n) for temporarily storing the location and subscriber information of the mobile telephone located in the communication area of the mobile switching center; Is connected to the mobile exchange and the switching network (2), the mobile subscriber information to join the telephone service, register a plurality of home location for storing managing subscriber-specific supplementary service information and the mobile phone position information (HLR: Home Location Register) ( 1 1 ..1k); And a plurality of supplementary service nodes (7 ₁ ..7z) that are connected to the switching network and provide various supplementary services. The plurality of supplementary service nodes (7 ₁ ..7z) include a short message service. Short Message Service Center (SMSC) 7 ₁ to provide, Billing Data System (BSS) 7 ₂ to collect and store billing data, or voice message to provide voice announcement service. The system includes a plurality of servers and systems that provide various additional services such as a voice message system (VMS) 7z.

The additional service providing process in the general mobile phone system configured as described above, as shown in Figure 2, the location information of the mobile phone according to the movement of the subscriber carrying the mobile phone visitor location of the mobile switching center (MSC) The base station (BS) is collectively referred to as a base station (BS), which is collectively referred to as a base station (BTS) and a base station controller (BSC). Hereinafter, the additional service providing method will be described in detail.

First, when a subscriber carrying a mobile phone moves to a communication area managed by an arbitrary base station, the base station BS transmits the location information of the mobile phone detected through wireless communication with the mobile phone. It is transmitted (S1) to the mobile exchange (3 ₁ ) connected to.

Accordingly, the mobile switch 3 ₁ sends a location registration request signal (RegNot: Registration Notification) requesting registration of location information of the mobile phone to the home location register 1 ₁ which manages subscriber information of the mobile phone. transmitting (S2) that is, the location registration request to the receiving the signal (RegNot) transmitting a home location register _(11), the subscriber information, for example, the identification number of the location information of the mobile exchange stored data base of the mobile telephone (Data Base) is searched for the registration information (RegCan: Registration Cancellation) signal of the mobile telephone to the mobile switching center and the visitor location registers 3n and 4n that manage the communication area where the subscriber of the mobile telephone was previously located. To transmit the location information deletion request (RegCan) signal to the corresponding mobile switch and visitor location register (3n, 4n), delete all the information of the subscriber, Delete indicating that the location information deletion response (regcan: Registration Cancellation Return Result) When receiving a signal, the home location register ₍₁₁₎ is then stored, updates the new location information of the mobile phone to the data base, updating storage location registration request signal that the (regnot: registration Notification Return Result) the mobile switching center and visitor location register to be transmitted to the (3 _1, 4 _1), wherein the position registered mobile phone that govern the communication area of the mobile phone Additional service information for subscribers, that is, additional service subscription and activation information is transmitted together (S3).

Accordingly, the mobile switch 3 ₁ receiving the location registration response signal regnot stores and manages additional service subscription and activation information for the subscriber of the mobile phone.

Subsequently, when a dial digit (Dial Digit), which is selected and input from the mobile phone through the base station (BS), is received (S4), it is determined and processed based on the station data set in the mobile switch, and the dial digit is previously determined. In the case of a feature code defined as providing a specific supplementary service, a message including information identifying the corresponding supplementary service and its contents is transmitted to the home location register, which is determined as a supplementary service request for each special code. Routing information with the corresponding service node received from the home location register, for example, a specific server or system that provides various additional services such as a voice message system (VMS) 7z that provides a voice announcement message service; The call connection of the service is performed so that the requested additional service is provided.

In this way, the general mobile telephone system, in particular, the mobile switching center (MSC), by receiving the subscriber information and additional service subscription / activation information that is stored and managed in the home location register (HLR), the additional service requested from the mobile phone can be provided. In order to perform a call connection with a service node that provides the supplementary service, or to provide a series of supplementary services for updating supplementary service activation information set in the home location register.

However, the above-described general supplementary service providing method is performed according to a higher communication protocol such as the conventional IS41.A / B which prescribes the function control between components in the mobile telephone system, and the IS41.A / B communication protocol. In order to provide value-added services, a mobile exchange that mainly manages a call exchange function is involved. When a new value-added service needs to be applied or modified, a mobile exchange system, which is a modular system composed of multiple processes and complex hardware, is required. Changes or installation of new fixes are required. This service improvement not only stops the call exchange function of the active mobile exchange, but also improves all additional mobile exchanges to improve one additional service. Implementation of additional services because the program of the There is a problem that is subject to significant restrictions on the improvements.

Accordingly, by applying a higher communication protocol such as IS41.C in the mobile telephone system to improve the IS41.A / B so that the mobile exchange is not involved in providing the supplementary service, and linking the supplementary service to the IS41.C protocol, There is an urgent need for a method of providing an additional service such that a variety of additional services can be provided through the IS41.C protocol by changing a home location register (HLR) and easily adding a specific function such as a computer. .

Therefore, the present invention was created to solve the above problems, and in the mobile telephone network to which a higher communication protocol such as IS41.C is applied, which defines the function control between components in the mobile telephone system, the MSC By linking trigger information between the home location register (HLR) and additional service information for each subscriber, the home location register provides routing information with the corresponding service node providing the requested additional service from the mobile subscriber. Another object of the present invention is to provide a method for providing an additional service using a trigger in a mobile phone network.

1 shows an overall configuration of a general mobile telephone system,

2 is a flowchart illustrating a method of providing an additional service in a general mobile telephone system.

3 illustrates types and parameters of outgoing / incoming trigger information in a mobile telephone network to which the present invention is applied;

4 is a flowchart illustrating an operation in a mobile switching center (MSC) to which an additional service providing method using an IS41.C trigger is applied in a mobile telephone network according to the present invention.

5 is a flowchart illustrating an operation in a home location register (HLR) to which an additional service providing method using an IS41.C trigger is applied in a mobile telephone network according to the present invention.

FIG. 6 is a diagram illustrating an additional service information management table in a home location register (HLR) according to the present invention.

※ Explanation of code for main part of drawing

1 ₁ ... 1k: Home Location Register (HLR) 2: Switching Network

3 ₁ ... 3n: MSC 4 ₁ ... 4n: Visitor Location Register (VLR)

5 ₁ ... 5x: Base Station Controller (BSC) 6 ₁ ... 6y: Base Station (BTS)

7 ₁ ... 7z: service node

The method for providing additional service using the IS41.C trigger of the mobile telephone network according to the present invention for achieving the above object, according to the location registration request signal of the mobile telephone received from the mobile switch, the additional service information of the mobile telephone. Step 1 of searching; Transmitting trigger information associated with the found additional service to the mobile switch; And confirming an additional service corresponding to the trigger message received from the mobile switch and transmitting routing information corresponding to the trigger message to the mobile switch.

In addition, the method for providing an additional service using the IS41.C trigger of another mobile telephone network according to the present invention comprises the steps of: receiving a trigger message from a mobile switching center; Identifying a content of the received trigger message and specifying an additional service associated with the trigger message; And transmitting the routing information corresponding to the specified additional service to the mobile switch.

Hereinafter, a method of providing an additional service using an IS41.C trigger in a mobile telephone network according to the present invention will be described in detail with reference to the accompanying drawings.

First, as described above, the additional service providing method using the IS41.C trigger in the mobile telephone network according to the present invention is applied by a higher communication protocol such as IS41.C which prescribes function control between components in the mobile telephone system. Changes and adds the function control of the home location register (HLR) in the mobile telephone network, that is, the home location register (HLR), which is easy to change a specific function, such as a computer, and the MSC according to the IS41.C communication protocol. By using the trigger (Trigger) information, to provide the routing information, which is the call connection information with the corresponding service node (node) that provides the additional service requested from the mobile phone in the home location register (HLR), Hereinafter, the trigger information will be described in detail.

First, the trigger information, when the home location register (HLR) receives the location registration request signal of the specific mobile phone received from the mobile switching center (MSC), the additional service subscription and activation information for the mobile phone subscriber The additional service subscription and activation information for the subscriber of the mobile telephone and the corresponding additional service, together with a response signal notifying the location registration result of the mobile telephone, as information transmitted to the mobile switch in connection with the retrieved information. The MSC provides trigger information including reference information for requesting a trigger message so that the home location register can perform appropriate processing. The trigger information is an origination trigger as shown in FIG. 3. It is managed by (Origination Trigger) and Termination Trigger.

FIG. 3 (a) shows the types and parameters of the origination trigger. When describing each parameter, the parameter 'All' transmits an Origination Request message for all call attempts, and a parameter. 'Local' means sending outgoing request message for all local call attempts, and parameter 'ILATA' means sending outgoing request message for all Intra_LATA call attempts.

For reference, the LATA (Local Access and Transport Area) corresponds to a geographical area (Geographical Area) for limiting service between carriers in North America.

In addition, parameter 'OLATA' means sending outgoing request message for all Inter_LATA call attempts, parameter 'Inti'l means sending outgoing request message for all international call attempts, and parameter' WZ 'means calling out of the World Zone. Send outgoing request message for attempt, parameter 'Unrec' means outgoing request message for all unrecognized call attempts, parameter 'RvtC' means outgoing request message for all revertive call attempts, The revertive call attempt means that the subscriber enters his / her phone number into his / her mobile phone and attempts to call.

Also, parameter 'Star' sends outgoing request message for call attempts beginning with digit '*', and parameter 'DS' sends outgoing request message for call attempts beginning with two digits '**', parameter 'Pound' 'Sends outgoing request message for numbers beginning with digit' # ',' DP 'sends outgoing request message for numbers beginning with two digits' ##', parameter 'PA' matches the category of Prior Agreement. It means sending outgoing request message for all numbers, and parameter 'Digit' means sending outgoing request message for all call attempts with N digits.

3 (b) shows a type and a parameter for the incoming trigger. The parameter 'Busy' transmits a Transfer_To_Number_Request or Redirection_Request message to any call in a call and the parameter ' RF 'transmits a transfer request message for any call that fails routing, parameter' NPR 'sends a transfer request message for any paging unanswered call, and parameter' NA 'transfers a transfer request to any unanswered call. Message transmission, and the parameter 'NR' means transmission of a transfer request message when any of the group related services or international calls cannot be connected.

As such, when trigger information defined in various ways according to each parameter is transmitted from the home location register (HLR) to the mobile switching center (MSC), the mobile switching device requests a subsequent service request signal from the mobile phone, that is, the mobile. The feature code or dialing digit information selected from the telephone is compared with the supplementary service subscription and activation information for the stored mobile telephone subscriber searched from the transmitted trigger information, and the corresponding routing message, that is, the requested supplementary service is compared. A trigger message for requesting routing information with any corresponding service node providing a is transmitted to the home location register.

Accordingly, the home location register (HLR) is a service node providing a requested supplementary service, for example, a voice message system (VMS) for providing a voice announcement message service as described above with reference to FIG. 7z) search for routing information for a call connection with a specific server or system that provides an additional service, and transmit the retrieved routing information to a mobile switch, so that the mobile switch exchanges a call connection based on the routing information. In order to perform a call processing operation for making a call connection between the mobile telephone and the corresponding service node, a detailed operation description of the additional service providing method using the IS41.C trigger in the mobile telephone network made as described above will be given. Hereinafter, the accompanying drawings will be described in detail with reference to FIGS. 4 and 5.

First, FIG. 4 and FIG. 5 are flowcharts illustrating operations performed in a mobile switching center (MSC) and a home location register (HLR) to which an additional service providing method using a trigger in a mobile telephone network according to the present invention is applied. As described above with reference to 2, when the mobile switching unit transmits a location registration request signal RegNot requesting a location registration of a specific mobile phone to a home location register (S100), the home location registrar is sent from the mobile switching center. Receives the location registration request signal RegNot transmitted (S200), performs a location registration operation corresponding thereto, and additional service information for the mobile telephone subscriber requesting the location registration, that is, additional service for the mobile telephone subscriber. Search for the subscription and activation information (S201), and transmit the trigger information set in association with the mobile switch (S202), wherein the trigger As described above with reference to FIG. 3, the information has various meanings according to the parameter.

Meanwhile, in the mobile switching center, after receiving and storing the trigger information transmitted from the home location register (S101), it is determined whether the received call (Call) is an outgoing call or an incoming call (S102). As a result, in the case of the outgoing call requested from the mobile phone, it is determined whether the dialing digit included in the received call is a predetermined feature code, starting with '*' or '#', etc. (S103). Done.

As a result of the determination, when the dialed digit is a special code, the home location register sends a feature request for requesting routing information, which is call connection information with a service node providing a corresponding service. (S104), the request signal (Feature Request) may be transmitted as a request signal for requesting to update the activation information for a particular additional service according to a special code.

The determination result. If the dialed digit is not a special code, it is checked whether there is a match with the trigger information that is armed (Arming), that is, the trigger information set to '1' (S107). In this case, an origination request message, which is a trigger message including the dial digit, is transmitted to a home location register (HLR) (S108), and if not present, a general call processing ( S109) perform an operation.

On the other hand, if the received call is not an outgoing call as a result of the check (S102), it is determined that the incoming call exchanged from another mobile exchange, and whether or not arming (Arming) to the incoming trigger (S110), the incoming trigger In the case of Arming, the transfer request (Transfer_To_Number_Request or Redirection_Request) message described above with reference to FIG. 3 is transmitted to the home location register (S111), and when the incoming trigger is not armed, Call processing (S112) is performed.

Accordingly, the home location register receives the message transmitted from the mobile exchange (S203) and transmits information corresponding to the received message. First, the message received from the mobile exchange is defined in advance. In the case of the message (S204) including a special code, the additional service information management table shown in FIG. 6 described later, in particular, the routing information table for each special code is searched, and corresponding routing information is transmitted (S208). If the received message is an outgoing request message that is a trigger message including a dial digit, the routing information table for each outgoing trigger is searched (S206) in the additional service information management table shown in FIG. Routing information, which is call connection information with the service node providing the found additional service, is transmitted to the mobile switch (S207).

On the other hand, if the received message is a switch request message, the call transfer number or the routing information corresponding thereto is transmitted to the mobile switcher (S210).

Thereafter, the mobile exchange receives the routing information transmitted from the home location register (S105), so that a call connection (S106) is made, for example, a service node that provides the additional service requested by the mobile telephone. In the case of routing information, which is call connection information with a server, any server that provides an additional service such as a voice message system (VMS) 7z that provides a voice announcement message service described above with reference to FIG. A call connection between the server or the system and the mobile telephone period is established so that the requested additional service is provided.

On the other hand, the additional service information management table in the home location register shown in FIG. 6 may be classified and managed by a routing information table for each origin trigger and a routing information table for each feature code. The routing information table for each originating trigger and the routing information table for each special code include routing information with a Prepayment Service (PPS) service node, routing information with a Voice Appreciation Dial (VAD) service node, and a Voice Message Service (VMS) service. Routing information with various service nodes, such as routing information, may be stored and managed. In particular, routing information with a virtual private number (VPN) service node may be stored and managed in the routing information table for each originating trigger.

For example, the routing information stored and managed in the routing information table for each originating trigger and the routing information table for each special code will be described below.

First, as shown in FIG. 6, the routing information with the PPS service node is a special code starting with '*', that is, *, 1 when the subscriber of the mobile phone wants to receive a prepaid mobile phone service. , Respectively, sequentially inputting 1 or selecting a predetermined dial digit in advance by the carrier, and accordingly included in the special code (* 11) or outgoing request message transmitted through the mobile exchange accordingly. Receives any dial digit from the home location register, searches routing information corresponding to the routing information table, that is, the routing information table for the special code, or the routing information table for the originating trigger, and sends routing information with the corresponding PPS service node to the mobile switch. Which is then routed so that the home location register can handle them according to special codes or dial digits. Classified information will be able to send to the mobile switching center.

Meanwhile, routing information with a PPS service node transmitted to the mobile switch may be transmitted in two types. That is, when requesting a prepaid mobile phone service by a special code, '1578 + 200494' set corresponding to the special code '* 11' is transmitted as routing information, and the 'optional dial digit' transmitted in the outgoing request message. In the case of requesting a prepaid mobile telephone service by using the '1578+ arbitrary dial digit' set corresponding thereto, the mobile terminal transmits the set '1578+ arbitrary dial digit' as routing information. For reference, when a dial digit corresponding to a prepaid mobile phone service (PPS) is selected and inputted, a call connection should be made with a service node corresponding to a random number that the subscriber subsequently selects and inputs due to the characteristics of the prepaid mobile phone service. Therefore, it is necessary to transmit trigger information for transmitting an origination request message (OriginationRequest) including the number selected by the subscriber, the trigger information is 'K-digit Trigger' using decimal (Decimal) Can be set and sent.

On the other hand, the routing information with the VPN service node stored and managed in the routing information table for each originating trigger, as shown in Figure 6, a virtual private telephone number that services the subscriber to use the mobile phone as a private or private phone (Virtual Private Number) When a service provider selects and inputs a preset four-digit dial digit (digits), the home location register searches the routing information table for each originating trigger, The routing information with the corresponding VPN service node is transmitted to the mobile switch, and the routing information with the VPN service node transmitted to the mobile switch is' 185 + 4 digits + 1 + 3 digit MIN 'or' 185 + 4 digits. + 4 digits MIN '. For reference, the 'MIN' is a subscriber identification number of the mobile phone.

In this manner, in the mobile switch, after transmitting the location registration request signal of the mobile phone to the home location register, the additional service information for the mobile phone subscriber is retrieved and stored from the trigger information received from the home location register, and the stored addition is performed. According to the service information and the dialing digit or the special code selected from the mobile phone, the corresponding message is transmitted to the home location register, and according to the corresponding service node and the routing information received from the home location register, While performing a function of connecting a call of a mobile telephone period, the home location register searches for additional service information for the subscriber of the mobile telephone according to the location registration request signal of the mobile telephone received from the mobile switchboard, and retrieves the added information. Trigger information including service information; After transmitting to the mobile switching center, the mobile terminal searches for an additional service associated with a special code or an arbitrary dial digit included in a message received from the mobile switching center, and transmits routing information corresponding to the found additional service to the mobile switching center. Or, by performing the function of updating and storing the activation information for the additional service, it is possible to provide a variety of additional services in a mobile phone network to which a higher protocol such as IS41.C is applied.

The additional service providing method using the IS41.C trigger in the mobile telephone network according to the present invention as described above is to change and add the function control of the home location register (HLR), which is easy to change the specific function, such as a computer, IS41 Using the trigger information in a mobile phone network to which a higher communication protocol such as .C is applied, routing information, which is call connection information with a corresponding service node that provides an additional service requested from the mobile phone, is transferred to the home location register. By providing in the (HLR), it is a very useful invention that makes it easier and more efficient to process and control routing information change and control for providing a variety of additional services that increase rapidly.

Claims (6)

Retrieving additional service information of the mobile telephone according to the location registration request signal of the mobile telephone received from the mobile switching center; Transmitting trigger information associated with the found additional service to the mobile switch; And An additional service using the IS41.C trigger in the mobile telephone network, comprising the step of identifying an additional service corresponding to the trigger message received from the mobile switch and transmitting routing information corresponding to the trigger message to the mobile switch. How to Provide. The method of claim 1, The additional service information, the additional service providing method using the ISC41.C trigger in the mobile telephone network, characterized in that it includes information on whether to subscribe and activate the additional service for the subscriber. The method of claim 1, The virtual private telephone number (VPN) service of the additional service is a method of providing an additional service using an IS41.C trigger in a mobile telephone network, characterized in that associated with a four-digit dial digit. The method of claim 1, In the third step, when the trigger message received from the mobile exchange includes a predetermined feature code, the routing information table for each special code that is stored and managed is searched, and the corresponding routing information is transferred to the mobile exchange. An additional service providing method using an IS41.C trigger in a mobile telephone network, characterized by transmitting. The method of claim 1, In the step 3, when the trigger message received from the mobile exchange includes a dial digit, the routing information table for each originating trigger stored and managed is searched, and corresponding routing information is transmitted to the mobile exchange. An additional service providing method using an IS41.C trigger in a mobile phone network. Receiving a trigger message from the mobile exchange; Identifying a content of the received trigger message and specifying an additional service associated with the trigger message; And And providing the routing information corresponding to the specified supplementary service to the mobile switch. 3.