KR100225529B1 - Gsm switch having a feature of call originating of short message - Google Patents

Abstract

The present invention relates to an exchange for transmitting a shortened message from a base station controller to a service center, and inputs an access request signal and a shortened message from a base station controller to a first terminal if the corresponding terminal is in a handover state. A mobile communication subscriber interface unit for outputting to a second terminal and applying an access request permission signal, response, and error message to the base station controller; It is connected to the mobile subscriber interface unit, and inputs an access request signal and a short message from the first terminal of the mobile communication subscriber interface unit and applies it to the anchor exchange, and the access request signal, access request permission signal and response applied from another exchange. A handover control unit which outputs a message; A VLR (Vistor Location Register), which is a database, is configured. In the VLR, all information about terminals existing in the area managed by the exchange is stored, and the location register access control unit determines access request and approval of provision of short message service. Wow; The location register access control unit is connected to a handover control unit, a mobile communication subscriber interface unit, and the location register access control unit, and whether or not to approve an access request signal and a short message service applied from a second terminal of the handover control unit and the mobile communication subscriber interface unit. Selectively confirms an access request permission signal and an error message to a handover control unit and the mobile communication subscriber interface unit; if approved for a short message service, sends a short message originating signal, and hands over an incoming response message A short message control unit for applying to the control unit and the mobile communication subscriber interface unit; A shortcut message gateway and an interworking control unit connected to the shortcut message control unit, when a shortcut message originating signal is applied, checking and outputting a route with a service center, and authorizing an authorized response message to the shortcut message control unit; When connected to the short message gateway and the interworking control unit, the short message originating signal is encoded and applied to the service center, and a response message indicating whether the short message originating signal is received from the service center is applied to the short message gateway and the interworking control unit. A MAP control unit is provided.

Description

GSM mobile communication switch capable of handling short message transmission during handover

The present invention relates to a GSM mobile communication exchange capable of transmitting and receiving a shortened message between a mobile base station and a service center. More particularly, the present invention relates to a GSM mobile communication exchange capable of performing a shortened message upon handover of a terminal. will be.

Short message service, which is one of additional services of mobile communication and personal communication service, is commercially available in Europe and the like. The short message function is a function that allows a message such as a text to be transmitted between terminals, and is not implemented in the current GSM mobile communication method.

In order to solve this problem, the present inventor has applied for a GSM mobile communication switch (application number No.) having the same function as the short message transmission. The present inventor proposed in this application the configuration of a mobile communication exchange for delivering a shortened message from a mobile base station to a service center.

However, in the mobile communication exchange limited by the present inventors, there is no suggestion of a device for preparing a handover state that is essentially occurring in mobile communication, that is, a change of the corresponding mobile communication exchange due to the movement of the terminal. Therefore, the present invention filed by the present inventors has a problem that the short message cannot be transmitted when the terminal is handed over.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and an object of the present invention is to enable a short message transmission process when a handover enables a short message in a handover state of a terminal to a corresponding service center. It is to provide a mobile communication switch.

The present invention for achieving this object relates to an exchange for transmitting a shortened message from a base station controller to a service center, and inputs an access request signal and a shortened message from the base station controller, so that the terminal is in a handover state. A mobile communication subscriber interface unit for outputting to a second terminal, if not in a handover state, and to apply an access request permission signal, response, and error message to the base station controller; It is connected to the mobile subscriber interface unit, and inputs an access request signal and a short message from the first terminal of the mobile communication subscriber interface unit and applies it to the anchor exchange, and the access request signal, access request permission signal and response applied from another exchange. A handover control unit which outputs a message; A VLR (Vistor Location Register), which is a database, is configured. In the VLR, all information about terminals existing in the area managed by the exchange is stored, and the location register access control unit determines access request and approval of provision of short message service. Wow; The location register access control unit is connected to a handover control unit, a mobile communication subscriber interface unit, and the location register access control unit. Selectively confirms an access request permission signal and an error message to a handover control unit and the mobile communication subscriber interface unit; if approved for a short message service, sends a short message originating signal, and hands over an incoming response message A short message control unit for applying to the control unit and the mobile communication subscriber interface unit; A shortcut message gateway and an interworking control unit connected to the shortcut message control unit, when a shortcut message originating signal is applied, checking and outputting a route with a service center, and authorizing an authorized response message to the shortcut message control unit; When connected to the short message gateway and the interworking control unit, the short message originating signal is encoded and applied to the service center, and a response message indicating whether the short message originating signal is received from the service center is applied to the short message gateway and the interworking control unit. A MAP control unit is provided.

1 is a block diagram of a GSM mobile communication switch capable of processing a short message transmission during handover according to the present invention;

2 is a flowchart illustrating an operation performed by a GSM mobile communication exchange capable of short message transmission processing according to the present invention.

<Description of the code | symbol about the principal part of drawing>

10: mobile subscriber interface unit 20: short message control unit

30: register access control unit

40: short message gateway and interworking control unit

50: MAP control unit 60: handover control unit

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of a GSM mobile communication exchange performing a short message transmission processing method according to the present invention, where the code 100 refers to a serving mobile communication exchange 100 when handing over, and the code 200 Means a mobile communication switch for an anchor during handover. Here, the exchangers 100 and 200 have the same configuration. In the present embodiment, the configuration in the exchangers 100 and 200 has been described using the exchanger 100 as an example.

First, the Mobile Subscriber Interface (hereinafter referred to as MSI) 10 is an A interface matching block, which converts an access request signal and a shortened message from a base station controller into an internal signal form and makes an access request. It is determined whether the terminal is currently in a handover state. That is, the MSI 10 applies an access request signal to a hand over control (HOC) 60 when the terminal is handed over, but in a non-hand over state, the short message controller. (Short Message Control; hereinafter referred to as SMCO) 20 is configured to apply an access request signal.

In addition, the MSI 10 is configured to apply an access request permission signal and response and an error message applied from the SMCO 20 and the HOC 60 to the base station controller.

Here, the HOC 60 is configured to apply an access request signal from the MSI 10 to the HOC 60-1 of the anchor exchanger 200, and conversely, the exchanger 100 is for anchors and the exchanger ( When 200 is for servo, it is configured to input an access request signal from the HOC 60-1 and apply it to the SMCO 20.

When the access request signal is applied, the SMCO 20 checks with the Location Register Access Control (LRAC) 30 whether the access request signal and the short message service are approved. In addition, the SMCO 20 applies the access request permission signal to the base station controller through the MSI 10 or the HOC 60 when the access request is granted from the LRAC 30, and when the short message service is approved. It is configured to send a short message outgoing signal to the Short Message Gateway Interworking Control (hereinafter referred to as SMGIC) 40. The SMCO 20 is also configured to apply a response from the SMGIC 40 and an error message signal to the MSI 10 or the HOC 60.

Here, the SMCO 20 is configured to apply the above-described access request permission signal, response, and error signal to the MSI 10 or HOC 60 to which the access request signal has been applied.

On the other hand, the VRAC (Vistor Location Register), which is a database, is configured in the LRAC 30, and the VLR stores all information on terminals existing in an area managed by the exchange. Accordingly, the LRAC 30 determines the grant of the access request and the short message service based on the information in the VLR and applies it to the SMCO 20.

The SMGIC 40 is a route management block between exchange service centers, and when a short message origination signal is applied from the LRAC 20, the SMGIC 40 checks the route with the service center and applies it to the MAPC (MAP Control) 50. In addition, the SMGIC 40 is configured to apply a response message from the MAPC 50 to the SMCO 40.

The MAPC 50 encodes the short message originating signal in the form of an internal signal and applies it to the service center, and sends a response message indicating whether the short message originating signal is received from the service center (including a terminal idle state and call status). It is configured to apply to the SMGIC 40.

FIG. 2 shows a flowchart in which each component operates over time in order for the terminal to perform an incoming process in handover in the GSM mobile communication switching device having the above-described configuration. When the terminal is not in the handover state, the present invention is the same as the present invention, so it is omitted in the present embodiment.

As shown, the base station controller sends an access request signal to the MSI 10 (step 101). Upon receiving the access request signal, the MSI 10 determines whether the access request signal is from a handed over terminal and applies the access request signal to the HOC 60 when the access request signal is a signal from the handed over terminal.

The HOC 60 applies this access request signal to the HOC 60-1 of the anchor exchange 200 (step 102), and the HOC 60-1 transmits the access request signal to the SMCO 20-1. do.

The SMCO 20-1 checks the LRAC 30-1 whether or not the access request signal is applied (in step 103, when the access request is granted, the HOC 60-1, 60 and MSI 10). The access request grant signal is applied to the base station controller (step 104). If the access request is not granted, an error message is generated, and the error message is generated by the HOC 60-1, 60 and MSI 10. The base station controller terminates the process of sending the shortened message by applying the controller to the controller (steps 105 and 106).

However, when the access request permission signal is applied, the base station controller sends the short message originating signal including the actual short message content to the SMCO 20-1 through the MSI 10 and the HOC 60-1, 60. (Step 107).

When the short message originating signal is applied, the SMCO 20-1 checks whether the short message service is provided to the corresponding terminal through the LRAC 30-1 (step 108), and prompts the short message from the LRAC 30-1. If the offer is approved, the short message origination signal is applied to the SMGIC 40-1 so that the SMGIC 40-1 encodes the short message origination signal and applies it to the MAPC 50-1 (step 109).

However, if the provision of the short message is not allowed from the LRAC 30-1, the SMCO 20-1 forms an error message, which is transmitted through the MSI 10 and the HOC 60-1, 60 to the base station. Applying to the controller causes the base station controller to terminate the process of sending the shortened message (steps 110 and 111).

The MAPC 50-1 applies the short message transmission signal input in the above-described step 109 to the service center (step 112), and receives or receives the short message transmission signal from the service center (the terminal idle state and the call status). And a response message for the base station controller through SMGIC 40-1, SMCO 20-1, and HOC 60-1, 60. MSI 10 (step 113). , 114).

The base station controller determines whether the terminal is in the idle state by inputting the response message, and if the terminal is in the idle state, terminates all processes after performing the call release procedure (steps 115 and 116).

As described above, according to the present invention, even if the terminal is handed over, the short message from the base station controller of the GSM mobile communication method can be easily processed.

Claims (1)

An exchange for sending a short message from a base station controller to a service center, Inputs an access request signal and a short message from the base station controller, and outputs to the first terminal if the terminal is in the handover state, and to the second terminal if the terminal is not in the handover state. A mobile communication subscriber interface unit for applying to the base station controller; Is connected to the mobile subscriber interface unit, receives the access request signal and the shortened message from the first terminal of the mobile communication subscriber interface unit, and applies the access request signal and the shortened message to the corresponding anchor exchange, and grants the access request signal and access request from another exchange. A handover controller for outputting a signal and a response message; A VLR (Vistor Location Register), which is a database, is configured. In the VLR, all information on a terminal existing in an area managed by the exchange is stored, and a location register that determines the access request and the short message service provision approval. An access control unit; The location connected to the handover control unit, the mobile communication subscriber interface unit, and the location register access control unit, and whether the access request signal and the short message service are authorized from the second terminal of the handover control unit and the mobile communication subscriber interface unit; Confirms to the register access control unit and selectively applies an access request permission signal and an error message to the handover control unit and the mobile communication subscriber interface unit; A shortcut message control unit for applying a response message to the handover control unit and the mobile communication subscriber interface unit; A short message gateway and an interworking control unit connected to the short message control unit, when the short message transmission signal is applied, confirming and outputting a route with a service center, and authorizing an authorized response message to the short message control unit; When connected to the short message gateway and interworking control unit, the short message originating signal is encoded and applied to a service center, and a response message indicating whether the short message originating signal is received from the service center is sent to the short message gateway and interworking control unit. An apparatus for processing a short message sent from a base station controller of a GSM mobile communication system having an MAP control unit authorized.

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