KR20030008902A - Method for two-direction communication between mobile terminal and fixed terminal - Google Patents

Abstract

PURPOSE: A bidirectional communication method between a mobile terminal and a fixed terminal is provided to perform a bidirectional character communication between a user of a mobile phone and a PC connected to the Internet in real time. CONSTITUTION: A PC(47) connected to a gateway server(46) inputs a telephone number of a mobile phone(41) of a termination side and a certain character message, and transmits the telephone number and the character message. The gateway server(46) transmits character data to an IWF(Inter Working Function)(44) through the Internet network(45). The IWF(44) adds identifier information of an origination side or information about the message to a header of the character data. An MSC(Mobile Station Center)(43) transmits the message transmitted from the origination side to the termination side using a predetermined channel through a base station(42). A user of the termination side operates a random key or a flip for automatically converting a mode of the mobile phone(41) into a character communication mode. The user inputs a necessary return character message. The mobile phone(41) adds the return character message to identifier information of the origination side and transmits the return character message.

Description

Bidirectional communication method between mobile terminal and fixed terminal {METHOD FOR TWO-DIRECTION COMMUNICATION BETWEEN MOBILE TERMINAL AND FIXED TERMINAL}

The present invention relates to a bidirectional communication method between a mobile terminal and a fixed terminal, and more particularly, a bidirectional communication between a mobile terminal and a fixed terminal capable of providing a bidirectional text communication service between a mobile terminal such as a wireless cellular phone and a personal computer (PC) in real time. It relates to a communication method.

As the technology of the information communication field has recently developed rapidly, various kinds of data communication technologies have been developed. In particular, mobile communication (wireless communication) services are showing significant growth compared to other communication services.

The following is a brief description of some communication technologies currently commercially available and serviced.

First, the SMS (Short Message Service) service utilizes a wireless signal link with No. 7 signal network that is used in a personal communication network using the mobile communication network shown in FIG. Provide services to send and receive. Referring to Fig. 1, the user of the calling mobile phone 11 inputs the desired short message and the number of the called mobile phone and transmits it. The data (short message) transmitted from the calling mobile phone 11 is transmitted to the mobile switching center 13 through the calling base station controller (BSC) 12. The mobile switching center 13 confirms the telephone number of the called party, grasps the state of the channel, and transmits the called party mobile phone 15 to the called base station 14 which controls radio communication. Therefore, the called party mobile phone 15 receives the data transmitted from the called party base station 14 and displays the corresponding message on the display window of the mobile phone.

At this time, the source and destination base stations 12 and 14 transmit and receive data using a paging channel and a traffic channel, which are forward channels of a code division multiple access (CDMA) communication network. Code Division Multiple Access When a data is transmitted using a paging channel, which is a forward channel of a communication network, a short message (SMS) is used as a data transmission message by using a data burst message as a data transmission message. Transfer to (15). Therefore, the user of the called party's mobile phone 15 can check the telephone number and the short message of the calling user. However, such an SMS service has a problem in that both the called party and the calling party must carry a mobile phone and cannot exchange data in real time between users of the mobile phone.

In order to improve this disadvantage, a messaging system that can send and receive text messages in real time between personal computers (PCs) connected to each other through the Internet network has been presented as shown in FIG. Referring to FIG. 2, in the conventional messaging system, a bidirectional communication method between two personal computers 21 and 25 is performed through the Internet network 23. When using the Internet network 23, a user of a personal computer having a unique IP fixedly does not need to access the login servers 22 and 24. However, a user of a personal computer having a variable IP generally requires a login server 22, 24) to check the users connected in advance, select the user and send the desired message. At this time, when using the Internet network 23, whether wireless or wired, it is possible to connect to the login server (22, 24), so if you want to contact by using the login server (22, 24) it is not necessary to distinguish between wireless or wired Do.

However, since such a messaging system should be used mostly on a personal computer, its use is limited to a young and active user. Of course, small portable computers with wireless Internet are on the market, but are not widely used because they are still expensive. In particular, when a user of a personal computer is moving, there is a drawback of not being able to send and receive letters urgently using the personal computer.

In addition, recently, an internet phone using a dial pad that provides a voice data service using an internet network without using a conventional wired or wireless communication network has been proposed.

Internet telephony has been put into practical use by combining the global network of the Internet with the technology of converting / compressing analog signals into digital signals and transmitting them in real time. Voice calls used on the Internet are classified into three types.

1) PC to PC method

It is the first method of internet phone call with internet phone software installed on PC. It first launches Internet telephony software and then registers its IP (Internet Protocol) address with the Internet gateway server. To make a call, select the other party from the connection list provided by the server, call the other party with the obtained IP address, and then talk. If you know the IP address of the other party in advance, you can talk directly to the other party without going through the Internet gateway server.

2) PC-to-Phone

This is a method of making a phone call from a personal computer equipped with Internet phone software. This method must use an Internet gateway server. The user runs the Internet telephony software installed in the computer, connects to the Internet gateway server, and enters the called party's telephone number. The Internet gateway server receiving the called party's telephone number calls the called party's phone in conjunction with the public telephone network (PSTN). When the call of the calling party and the called party is connected to each other, the internet gateway server connects the personal computer user and the user of the telephone to each other so that the telephone call can be made with each other.

3) phone-to-phone

It is a service that enables voice calls between regular phones through the Internet. The calling party dials the Internet gateway server closest to him and enters the phone number. The Internet gateway server searches for the Internet gateway server closest to the telephone number received, and the called Internet gateway server makes a call. When a connection is established, voice calls between telephone users are performed through two Internet gateway servers.

However, such an internet telephone has a large amount of data to be processed because it has to process voice data of a character code within an assigned frequency channel. Therefore, the number of users is limited because the frequency bandwidth is increased when communicating between the Internet and a personal mobile phone through a character code.

In addition, as the most recent technology, a technique for transmitting a message from a personal computer to a mobile phone as shown in FIG. 3 has been proposed. In other words, a user of a personal computer enters a specific wireless communication company from a homepage and uses an additional service provided by the homepage. That is, the user connects to the Internet gateway server 36 from the home page, and then enters the called party's telephone number. The Internet gateway server 36, which has received the called party's telephone number, interworks with the mobile switching center 33 through the network interworking device 34 to transmit the called party information to the base station 32. Accordingly, the base station 32 transmits a message to the called mobile phone 31 in its area. The called party's mobile phone 31 displays the necessary information including the called party's phone number and the received message on the display of the phone.

However, such technology could be provided after accessing the homepage of a specific mobile carrier. In addition, although it is possible to send a message from a personal computer to a personal mobile phone, a real-time two-way text communication has not yet been possible since the message cannot be returned from the called mobile phone to the calling personal computer.

SUMMARY OF THE INVENTION The present invention has been proposed in order to solve the above-mentioned problems of the prior art, and is a two-way communication between a mobile terminal and a fixed terminal capable of real-time two-way text communication between a personal mobile phone user and a personal computer connected to the Internet network. It is to provide a method.

Another object of the present invention is to install a messaging program according to the present invention without the user of a personal computer connected to a specific mobile carrier's mobile terminal and a mobile terminal capable of real-time two-way text communication to the user of the destination mobile terminal It is to provide a period bidirectional communication method.

In order to achieve the above object, a bidirectional communication method between a mobile terminal and a fixed terminal of the present invention, in a communication network including at least one base station, mobile switching center, network interworking device, Internet network, gateway server, fixed terminal connected to the gateway Inputting and transmitting a phone number and a predetermined text message of the called-party mobile terminal in the step; Transmitting, by the gateway server, the text data to the network interworking device (IWF) through the internet network; Adding, at the network interworking device (IWF), identifier information of the calling party and / or information on a message to a header of the text data; Transmitting, by the mobile switching center, the message transmitted from the calling party through the base station to the called party using a preset channel; Converting the mode of the mobile terminal of the called party to a text communication mode by operating any key or flip by the user of the called party; Inputting a required reply text message by the called party; And sending the identifier information of the calling party to the reply text message in the called party's mobile terminal.

According to the features of the present invention as described above, the calling party user using the personal computer while the calling user has installed the personal computer messaging program according to the present invention to the called party user carrying the mobile phone When delivered, there is an advantage that can send and receive text information in real time.

1 is a block diagram of a wireless communication network providing a conventional mobile phone SMS service.

Figure 2 is a network configuration providing a messaging service between the personal computer based on the conventional Internet.

3 is a block diagram of a communication network providing a conventional dial pad service.

4 is a time flow diagram illustrating a bidirectional communication procedure between a mobile terminal and a fixed terminal according to the present invention.

5 is a block diagram of a packet format in bidirectional communication between a mobile terminal and a fixed terminal according to the present invention.

* Description of the symbols for the main parts of the drawings *

41: mobile phone 42: base station

43: mobile switching center 44: network interworking device (IWF)

45: Internet Network 46: Server

47: personal computer

Hereinafter, with reference to the accompanying drawings will be described the configuration and operation of the present invention.

As shown in FIG. 4, the communication network according to the present invention controls a switching path by identifying a base station 42 controlling wireless communication of a plurality of mobile telephones 41 and a destination of a call transmitted from the base station 42 or outside. The mobile switching center 43, a network interworking device (IWF) 44 which controls the mobile switching center 43 to interwork with the Internet network 45, and the personal computer 47 to the Internet network 45. And a message storage center 48 for storing the corresponding data when the called party cannot respond.

Here, when the network interworking device 44 sends a message from the calling personal computer 47 to the mobile phone 41 in addition to the general network interworking function, the network interworking device 44 receives the IP information of the personal computer on the Internet and information about the message at the calling party. In addition to the header of the message sent to the side, the (temporary) store the added information, and then sends a message containing the information to the mobile switching center 43 is added. Therefore, the message transmitted from the mobile switching center 43 is transmitted to the called party's mobile telephone 41 through the base station 42. At this time, the mobile phone 41 outputs an announcement or a melody corresponding to "providing real-time text service". At this time, when the mobile phone is in a normal state but the user does not answer the call, the mobile switching center 43 leaves the required text message on the display window of the mobile phone like the existing SMS service, and stores the received message in the storage center 48. ). In addition, since the mobile switching center 43 already knows the IP information and necessary information of the calling party, the mobile communication station 43, the Internet network 45, and the inner can send a text message indicating that the current party cannot communicate with the called party. It may transmit to the originating personal computer 47 via the tet gateway server 46.

4 is a time flow diagram illustrating a bidirectional communication procedure between a mobile terminal and a fixed terminal according to the present invention.

The user of the calling personal computer 47 invokes the messaging program according to the present invention while the computer is powered on to invoke the messaging initial screen (a1, b1). Subsequently, in the initial screen, the telephone number of the called party's mobile phone 41 is input, the required text message is input and the send button is selected (c1). The gateway server 46 transmits the data transmitted from the calling personal computer 47 to the network interworking device (IWF) 44 via the internet network 45 (d1). At this time, the network interworking device (IWF) 44 adds the IP information of the calling personal computer 47 and information about the message to the header of the message transmitted from the calling party to the called party as shown in FIG. 5, and adds the added information. After storing (temporarily), the entire message is transmitted to the mobile switching center 43 (e1). Here, in place of the IP information, it may be selectively used among a telephone number, a unique number, a unique character, a combination of a unique number and a letter. In addition, the mobile switching center 43 may determine that the message has been received by the calling personal computer 47, and may transmit a confirmation message to the calling personal computer 47 informing that the message has been normally transmitted (f1). The mobile switching center 43 transmits the message transmitted from the calling personal computer 47 through the base station 42 to the called mobile phone 41 using a preset channel (paging channel or traffic channel) (g1). ).

At this time, the called party's mobile phone 41 displays the announcement "providing real-time text service" on the display window of the called party's mobile phone 41 or outputs a melody corresponding thereto (h1). If the mobile phone is in a normal state but the user does not answer the call, the mobile switching center 43 displays the required text message on the display window of the called party's mobile phone 41 as in the existing SMS service, and displays the received message. Stored in the message storage center 48 so that the user of the called mobile phone 41 can check if necessary.

However, if the user of the called mobile phone 41 selects a key corresponding to "reply" floating in the display window of the mobile phone 41 in order to perform real-time two-way text communication, or the call of the called mobile phone 41 By operating any key or opening the flip, the mode of the mobile phone is automatically switched to the text communication mode (i1). Then, when the user of the called mobile phone 41 enters the required text message and selects the send button of the mobile phone, the message is transmitted to the mobile switching center 43 through the base station 42 (j1). At this time, the called party's mobile phone 41 includes the IP information of the calling party's personal computer 47 and the phone number information of the called party's mobile phone 41 in the reply message. The mobile switching center 43 checks the IP information of the called party and transfers the received data to the network interworking device (IWF) 44 (k1). At this time, the mobile switching center 43 may transmit a confirmation message indicating that the message is normally transmitted to the called party's mobile telephone 41 (l1).

Subsequently, the network interworking device (IWF) 44 transmits data to the corresponding gateway server 46 via the Internet network 45, and the gateway server 46 transmits the data received to the calling personal computer 47. To enable real-time problem communication (m1, n1). Accordingly, the user of the calling personal computer 47 can check the message returned by the user of the called mobile phone 41 through the monitor of the computer, and if necessary, continue text communication in the manner described above.

According to the bidirectional communication method between the mobile terminal and the fixed terminal according to the present invention described above, it is possible to perform real-time bidirectional text communication between a personal mobile phone user and a personal computer connected to the Internet network without accessing the page of the mobile communication company. In other words, if the called user carries only a mobile phone while the calling user has a personal computer installed with a messaging program according to the present invention, the caller can send and receive text information in real time, thereby greatly increasing the communication efficiency of the Internet and the mobile phone. You can.

Claims (3)

In a communication network including one or more base stations, mobile switching centers, network interworking devices, Internet network, gateway server, Inputting and transmitting a phone number and a predetermined text message of a called-party mobile terminal at a fixed terminal connected to the gateway; Transmitting, by the gateway server, the text data to the network interworking device (IWF) through the internet network; Adding, at the network interworking device (IWF), identifier information of the calling party and / or information on a message to a header of the text data; Transmitting, by the mobile switching center, the message transmitted from the calling party through the base station to the called party using a preset channel; Converting the mode of the mobile terminal of the called party to a text communication mode by operating any key or flip by the user of the called party; Inputting a reply text message required by the called party; And transmitting the identifier information of the calling party to the reply text message in the called party's mobile terminal and transmitting the identification information. The method of claim 1, wherein the identifier information is selectively used among an IP address, a telephone number, a unique number, a unique character, and a combination of a unique number and a letter. 2. The method according to claim 1, wherein when the mobile switching center transmits the text data transmitted from the calling party to the called party, if there is no response from the called party, the mobile switching station displays a preset text message on a display window of the called party, And storing the message in a message storage center that can be confirmed by the called party.