KR100418805B1 - Method and System for Message exchange of Mobile Station to Mobile Station - Google Patents

Abstract

The present invention relates to a system and a method for exchanging messages between terminals.

In the present invention, according to the message received from the transmitting terminal, the transmitting mobile communication switching station which tracks the position of the receiving terminal using the position tracking means, and then transmits the message to the receiving mobile communication switching center to which the receiving terminal belongs. ; A receiving mobile communication switching center for transmitting a message received from the transmitting mobile communication switching center to a receiving terminal through a base station; According to the contents of the message received from the receiving mobile communication switching center, there is provided a message exchange system comprising a receiving terminal for performing the relevant instructions.

Thus, the message can be directly transmitted and received without opening a communication path between the transmitting and receiving terminals.

Description

Message exchange system between terminals and method thereof {Method and System for Message exchange of Mobile Station to Mobile Station}

The present invention relates to a message exchange system between a terminal and a method thereof, and more particularly, to a message exchange system and a method capable of exchanging messages between terminals in a mobile communication system.

Short Message Service (SMS) provided by the GSM cellular system (Global System for Mobile Communications Cellular System) is a service function that can send and receive text data between terminals without making a voice call, and can transmit text information of up to 160 characters. It is characterized by being.

As shown in FIG. 1, a general network system for performing the SMS transmission of such a feature includes a first handset 10, a first GSM system 11, a service center 12, a second GSM system 13, And a second handset 14.

An operation process of the system having the above structure will be described below with reference to the accompanying drawings.

2 is a flowchart sequentially illustrating an SMS transmission process according to the prior art. Referring to FIG. 2, first, when a short message is transmitted from a first handset, which is a transmitting GSM mobile station, to a service center via a first GSM system, the service center stores the short message (S21). Thereafter, the service center transmits the stored short message to the second handset which is the receiving GSM mobile station, and the transmitted short message is stored in the second handset (S22). In step S22, the short message stored in the second handset. When the user reads (S23), the SMS transmission is completed.

Here, if the stored short message is correctly transmitted to the receiving GSM mobile station, the service center deletes the short message. If the receiving GSM mobile station does not receive the short message properly, the service center keeps the short message for a certain period and retry the SMS transmission for that period. .

In the SMS transmission according to the prior art characterized by the above process, after transmitting a short message to the corresponding SMS server through signaling between the terminals, the SMS must be transmitted and received with the other terminal through the SMS server, the SMS You must use an SMS server for transmission. As a result, there is a disadvantage in that the efficiency in terms of economic or structural aspects is reduced.

In addition, the data traffic transmission must occupy a circuit (circuit), there is a problem that the GSM system or the service center does not know whether the user read the message sent to the handset.

The present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is a message exchange system between terminals capable of immediately transmitting and receiving a simple signaling message between terminals without opening a communication path and the same. It is to provide a method.

Another object of the present invention is to provide a message exchange system and method for a terminal period capable of directly transmitting and receiving the message without using an SMS server.

1 is a block diagram of a network system for performing SMS transmission;

2 is a flowchart sequentially illustrating an SMS transmission process according to FIG. 1;

3 is a block diagram of a message exchange system between terminals according to an embodiment of the present invention;

4 is a flowchart sequentially illustrating a message exchange method between terminals according to an embodiment of the present invention;

5 is a state transition diagram illustrating a message exchange process between terminals.

※ Explanation of code about main part of drawing ※

31: sending terminal (MS)

32: mobile communication switching center (MSC)

33: Home Location Register (HLR)

34: Visitor Location Register (VLR)

35: Receiving side mobile communication switching center (MSC)

36: base station (BTS)

37: receiving terminal (MS)

A message exchange system between terminals according to a feature of the present invention for achieving the above object,

A sending mobile communication switching center for tracking the position of the receiving terminal using the position tracking means according to the message received from the transmitting terminal, and transmitting the message to a receiving mobile communication switching center to which the receiving terminal belongs;

A receiving mobile communication switching center for transmitting a message received from the transmitting mobile communication switching center to a receiving terminal through a base station;

And a receiving terminal for performing the relevant instructions according to the contents of the message received from the receiving mobile communication switching center.

Message exchange method between terminals according to another aspect of the present invention,

A first step of tracking the location of the receiving terminal according to the message received from the transmitting terminal;

A second step of transmitting the message to the receiving terminal;

A third step of performing instructions according to the message content;

A fourth step of transmitting a response message including a result of the execution according to the instructions to the sender terminal,

The fourth step may be a step performed selectively according to the decision of the receiving terminal.

Hereinafter, in the present invention, a message immediately transmitted and received between terminals will be called an immediate message.

Hereinafter, a message exchange system and a method between terminals according to an embodiment of the present invention will be described with reference to the accompanying drawings.

3 is a block diagram illustrating a message exchange system between terminals according to an embodiment of the present invention, and FIG. 4 is a flowchart sequentially illustrating an operation process of the message exchange system between terminals according to FIG. 3.

First, referring to FIG. 3, a message exchange system between terminals according to an exemplary embodiment of the present invention includes a transmission system for transmitting a message and a reception system for receiving the message.

The transmitting system includes a sending terminal (MS) 31, a sending mobile communication switching center (MSC) 32, a home location register 33, a visitor location register 34, and a receiving system. Includes a receiving mobile communication switching center (MSC) 35, a base station (BTS) 36, and a receiving terminal MS (37).

An operation process of the message exchange system between terminals having the above structure will be described schematically with reference to FIG. 4.

4 is a flowchart sequentially illustrating a message exchange method between terminals according to an embodiment of the present invention.

When an immediate message from the transmitting terminal 31 is received by the transmitting mobile telecommunication switching center 31, the transmitting mobile telecommunication switching center 32 determines the position of the receiving mobile telecommunication switching station 35 at which the immediate message is to be received. Sending SRI (Sending Routing Information) message to the home location register 33. Thereafter, the home location register 33 transmits a Providing Roaming Number (PRN) message to the visitor location register 33 to know the roaming number of the receiving mobile communication switching center 35 to which the receiving terminal 37 belongs. do. Thereafter, the visitor location register 33 tracks the location of the receiving terminal 37 through a phasing step.

Thereafter, the receiving terminal 37 of the tracked position transmits the location information associated with the receiving terminal 37 to the visitor location register 33 via the base station (BTS) 36. The visitor location register 33 receiving the location information transmits a response message (PRN ack) to the PRN message to the home location register 33, and the home location register 33 receives the location information. Send an answer message (SRI ack) to the SRI message to the exchange 32.

Thus, the location tracking step for tracking the location of the receiving terminal 37 is completed (S41).

Next, the transmitting terminal 32 transmits the message immediately to the receiving mobile communication switching center 35 of the tracked position (S42), and the receiving mobile communication switching terminal 35 receives the corresponding receiving terminal. The immediate message is sent to 37.

Thereafter, the receiving terminal 37 performs an answer function for the short message (S43), and then determines whether or not to transmit an answer message for the result of the execution (S44). The answer message is transmitted (S45) or not to the receiving mobile communication switching center 35.

Next, the receiving side mobile communication switching center 35 transmits the received response message to the transmitting side mobile communication switching center 32, and the transmitting side mobile communication switching center 32 transmits the received response message to the transmitting terminal 31. send. As a result, an immediate message transmission / reception process between terminals according to an embodiment of the present invention is completed.

Thereafter, the transmitting terminal 31 which has received the response message to the immediate message may store or delete the received response message as it is.

The operation process of the message exchange system between terminals, which is characterized by the above-mentioned rough exchange method, is described in detail as follows.

5 is a state transition diagram sequentially illustrating a message exchange process between terminals.

Referring to FIG. 5, a message exchange process between terminals tracks the location of a receiving (relative) terminal receiving a message, and immediately transmits a message including desired contents to the receiving terminal of the tracked position, and the message. Receive a reply message to. At this time, whether to send the response message is characterized in that selectively made through the receiving terminal.

To be more specific, first, a friend who wants to lock an immediate message (IAM_for_simple_messaging 1), which is a signaling message containing the content, for example, to lock the door of a distant car, or to lock the door of an apartment entrance A message including the contents desired by the user who owns the sending terminal, such as in the case of sending a text chat or a text message with the other terminal owned by the sender terminal 31, 32).

Subsequently, the receiving mobile communication switching center 32 receiving the immediate message IAM_for_simple_messaging sends a SRI message to the home location register to determine the location of the receiving mobile communication switching station 35 to which the immediate message is to be sent. Transfer to 33.

The home location register 33, which has received the SRI message from the transmitting mobile communication switching station 32, knows a roaming number of the receiving mobile communication switching station 35 to which the receiving terminal 37 belongs. A Providing Roaming Number (PRN) message is sent to the visitor location register 34.

The visitor location register that receives the PRN message from the home location register 33 sends a radio wave for tracking the location of the receiving terminal 37, thereby performing a paging step.

Then, when the location of the receiving terminal 37 is tracked through the paging step, the visitor location register 34 performs an ACKnowledge function for the PRN message to the home location register 33 through the location information. And The home location register 33 also performs an answer (ACK) function for the SRI message to the transmitting mobile communication switching center 32. This completes the location tracking step for the receiving (relative) terminal 37 to which the message IAM_for_simple_messaging 1 is to be sent immediately.

Next, when the location of the receiving terminal 37 is confirmed through the above process, the transmitting mobile communication switching center 32 immediately transmits the message IAM_for_simple_messaging 2 to the immediately receiving mobile terminal. do. Subsequently, the receiving mobile communication switching center 35 receiving the immediate message IAM_for_simple_messaging 2 immediately transmits the received instant message IAM_for_simple_messaging 3 to the receiving terminal 37 (S59), and receives the receiving terminal. After performing the answer function to the message immediately after receiving the received message 37, it is determined whether to send an answer message (IAM_for_simple_messaging 3 ack OR not) to the sender terminal 31 (S60).

For example, you can check if the door of the car or the door of the apartment you want to lock is locked well, or if it is not locked, lock it and then send a reply message. Determines whether to perform a short ACK function such as sending a text message or the like.

That is, the text chat request from the transmitting terminal 31 may be rejected, and the response message including the fact that the door of the vehicle is well locked may not be transmitted.

Next, when it is determined whether the corresponding response message is transmitted to the transmitting terminal 31 according to the determination of the receiving terminal 37, the receiving mobile communication switching center 35 answers the received message from the receiving terminal 37. (IAM_for_simple_messaging 2 ack) is transmitted to the transmitting mobile communication switching center 32 (S61), and the receiving mobile communication switching center 32 which receives this transmits the corresponding message (IAM_for_simple_messaging 1 ack) to the transmitting terminal 31. .

At this time, even if the reply message is transmitted to the sender terminal 31, according to the decision of the sender terminal 31, the reply message is simply deleted or stored after transmission.

According to the present invention described above, by immediately transmitting and receiving a temporary message (temporary message) that can immediately know the information by sending and receiving without opening the communication path between the terminal, the terminal, the effect that can efficiently send and receive the message immediately There is.

In addition, by immediately transmitting the immediate message to the receiving terminal, it is possible not only to immediately receive a response message for the corresponding content, there is an effect that can selectively transmit and receive the response message to the immediate message.

Claims (7)

A sending mobile communication switching center for tracking the position of the receiving terminal using the position tracking means according to the message received from the transmitting terminal, and transmitting the message to a receiving mobile communication switching center to which the receiving terminal belongs; A receiving mobile communication switching center for transmitting a message received from the transmitting mobile communication switching center to a receiving terminal through a base station; And a receiving terminal for carrying out the related instructions according to the contents of the message received from the receiving mobile communication switching center. The method of claim 1, And a response message including a result of performing the instructions is selectively transmitted to the transmitting terminal according to the determination of the receiving terminal. The method of claim 1, The position tracking means, A home location register for finding a roaming number of the receiving mobile telecommunication switching center; And a visitor location register for performing a paging step to track the location of the receiving terminal. A first step of tracking the location of the receiving terminal according to the message received from the transmitting terminal; A second step of transmitting the message to the receiving terminal; A third step of performing instructions according to the contents of the message; A fourth step of transmitting a response message including a result of the execution according to the instructions to the sender terminal, Wherein the fourth step is a step of the message exchange between the terminal, characterized in that selectively performed according to the decision of the receiving terminal. The method of claim 4, wherein The first step is, A first substep of sending a SRI (Sending Routing Information) message to a home location register to determine the location of the receiving mobile communication switching center; A second substep of sending a Providing Roaming Number (PRN) message to a visitor location register for knowing a roaming number of the receiving mobile communication switching center; And a third sub-step of the visitor location register receiving the PRN message to perform a paging step of tracking the location of the receiving terminal. The method of claim 4, wherein The second step, A first substep of the transmitting mobile communication switching station transmitting the message to the receiving mobile communication switching center; And a second substep of the receiving mobile communication switching station transmitting the message to the receiving terminal. The method of claim 4, wherein And the transmitting terminal stores or deletes the received response message.