KR20060073846A - Global mobile communication system using digital multimedia broadcasting system - Google Patents

Abstract

The present invention relates to a global mobile communication system using a digital multimedia broadcasting system, and in the related art, it is possible to transmit and receive only its own phone number only in another country where an agreement is made, and to select one of roaming or interworking services according to the communication method of the other station. However, there is a problem in that the service use is inconvenient when traveling to several countries. In addition, in the case of the interlocking service, it is not possible to use its own terminal functions or to check the built-in information, and excessive equipment costs of the service operator are invested, and high communication costs are charged to the user. In view of the above problems, the present invention uses a digital multimedia broadcasting (DMB) system, which is rapidly progressing in recent years, so that if the system exists, a user can make or receive a call to his terminal without going through a foreign telecommunication company anywhere in the world. You don't need to use foreign telecommunications company's mobile communication network while paying expensive bills.You can use your own terminal as it is, so you can utilize the internal functions and information of the terminal and do not need complicated roaming or interworking service application procedure. There is an effect that can greatly increase.

Description

Global mobile communication system using digital multimedia broadcasting system {GLOBAL MOBILE COMMUNICATION SYSTEM USING DIGITAL MULTIMEDIA BROADCASTING SYSTEM}

1 is a conceptual diagram showing an international roaming service scheme of a conventional cellular terminal.

2 is a conceptual diagram showing an international interworking service method of a conventional cellular or PC terminal.

3 is a conceptual diagram illustrating a service method of a global mobile communication system according to an embodiment of the present invention.

*** Explanation of symbols for the main parts of the drawing ***

100: cellular terminal 105: DMB transceiver

110: PC terminal 115: DMB transceiver

120: gap filter 130: communication satellite

140: gap filter 150: base station

160: terminal 165: DMB transceiver

170a, b: wired or wireless terminal

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a global mobile communication system using a digital multimedia broadcasting system. In particular, the present invention relates to a global mobile communication system using a terminal equipped with a gap filter for digital multimedia broadcasting (DMB) and a DMB transceiver capable of transmitting and receiving. The present invention relates to a global mobile communication system using a digital multimedia broadcasting system that enables a call through a DMB system without using roaming or interworking services in different regions.

A service that allows a mobile terminal user to make or receive a call using another mobile terminal's telephone number in another country is called a roaming service or an interworking service.

These roaming services or interlocking services are available only in places where appointments have been made between countries. Roaming services are services that can be used in other countries as they are, and interlocking services can be entered only in other countries by entering their own phone numbers on the leased terminals. It is a service that can be used temporarily.

The reason for using such a service is that different frequency bands and frequency schemes of mobile communication systems are used in different countries. In particular, the difference between roaming services and interworking services that users easily confuse is whether they can use their own terminals.

1 illustrates a service concept of a conventional roaming service. Cellular terminal users can use their terminals as they are in countries that use code division multiple access (CDMA), which is the same frequency band and frequency system, in which case they can make or receive calls without joining other networks. The giving service is a roaming service.

The left side is a foreign country using the Americas or CDMA communication method, the right side is a domestic. First, if a user requests a roaming service before leaving the country, the telecommunication company to which the user subscribes provides user information to the telecommunication company of the destination, so that the user can use the communication infrastructure of another country even if the user does not subscribe to the corresponding country's telecommunication company. .

Accordingly, the terminal 10 located in the Americas or a CDMA-using station is a cellular terminal, and when making a call, a domestic carrier base station 30 through a communication satellite 20 or a wired communication network between countries using a carrier base station 15 of the corresponding country. It is possible to make a telephone call with the wired / wireless terminals 40a and 40b managed by.

In this case, roaming service is possible only in the country where the agreement is made, and is not possible in the country that does not use the CDMA scheme. In addition, communication is not possible in the communication shadow area without the base station. In addition, since the communication infrastructure of various communication companies must be used for communication, the cost of configuring a facility for providing a roaming service and the communication cost of a user are very high.

If the user of the cellular terminal wants to use his or her telephone number as it is in a country using a communication method of a type other than CDMA (eg, a time division multiple access (TDMA) method or a variant thereof, a GSM method), or a PC ( PCS) Terminal (no roaming service) If the user wants to use his / her phone number in another country as it is, the user should use the interlocking service, not the roaming service. This too is only available where agreements have been reached.

2 is a conceptual diagram of a service of a conventional interlocking service, as shown in the case where a user of the cellular terminal 10 wants to use his / her telephone number in a country using a communication method other than the CDMA method or the user of the PC terminal 13. If a foreign country wants to use its own phone number, it must be used by interlocking its own phone number to a rental terminal that supports the communication method of that country. To this end, an agreement is required between a carrier of a corresponding country and a domestic carrier, and a communication server for interworking a rental terminal and a user's telephone number is required to support this.

That is, in the related art, it is possible to transmit / receive only the other country where the agreement is made, and to select one of roaming or interworking services according to the communication method of the other country, and there is a problem in that the service is inconvenient when moving to several countries. In addition, in the case of the interlocking service, it is not possible to use its own terminal functions or to check the built-in information, and excessive equipment costs of the service operator are invested, and high communication costs are charged to the user.

In consideration of the problems described above, the present invention provides a digital multimedia broadcasting (DMB) system, which is recently developed. If the system exists, the user can make or receive a call to his or her terminal without going through a foreign telecommunication company anywhere in the world. And a DMB transceiver capable of transmitting and receiving to the terminal, and the DMB gap filter can communicate with a DMB gap filter of another station using a communication satellite, and if necessary The purpose of the present invention is to provide a global mobile communication system using a digital multimedia broadcasting system that enables international calls using its own terminals without using a wireless communication network of another country by using a system configured to relay a call to a local communication network. have.

The present invention for achieving the above object, the digital multimedia broadcasting (DMB) relay and performs a transmission and reception in the DMB frequency method while identifying a specific object and a gap filter having a satellite communication function; A communication satellite for relaying communication between gap filters regardless of a state; DMB transmission and reception means capable of transmitting and receiving in the gap filter and the DMB frequency method is equipped, through which a mobile communication for requesting the call channel setting with the terminal equipped with the DMB transmission and reception means located in another station in the adjacent gap filter Characterized in that it comprises a terminal.

The gap filter may be configured to relay a communication channel established with a mobile communication terminal located in another station to a wired / wireless communication network of a local station through a gap filter of another station.

When described in detail with reference to the accompanying drawings an embodiment of the present invention according to the above configuration.

3 is a view illustrating the configuration and service concept of an embodiment of the present invention. As shown in FIG. 3, a gap filter 120 or 140 used in a digital multimedia broadcasting (DMB) system may be used instead of a wireless communication network. .

In general, DMB is a system proposed to receive multimedia information or data through a portable broadcast receiver equipped with an individual on the move. The DMB is separately developed into a terrestrial DMB and a satellite DMB, and some of them have already been prototyped. In addition, a receiving module is being developed to support satellite DMB and terrestrial DMB in the future, and research is being started to accommodate two-way communication as well as simple one-way broadcasting.

In the present invention, a gap filter for broadcasting terrestrial DMB broadcasting or a gap filter for eliminating the shadow area of satellite DMB broadcasting is used as a relay means, and a DMB transceiver capable of transmitting and receiving in the gap filter and DMB frequency band is provided. It is mounted on the mobile communication terminal so that the mobile communication terminal can establish a call channel with the gap filter and make a call. The gap filter may communicate with a remote gap filter using its own satellite communication means or a predetermined satellite communication means connected by wire.

The remote gap filter establishes a communication channel between mobile communication terminals requesting a call through a gap filter requesting a communication channel while directly communicating with a mobile communication terminal equipped with a DMB transceiver among adjacent mobile communication terminals. do.

With reference to the basic operation method as described above, a more detailed context-specific communication method and the function of each member will be described.

The left side of the dashed line in the figure is foreign, while the right side is domestic, and the description will be given. Note that this service is not necessarily available only between countries, and can be serviced in the same country.

First, some of the mobile communication terminals 100, 110 and 160 of the illustrated mobile communication terminals are cellular terminals or PCS terminals that are used in Korea, and adjacent gap filters 120 and 140 in DMB frequency bands (about 2.5 GHz), respectively. And DMB transceivers 105, 115, and 165 capable of transmitting / receiving, thereby enabling terminal internal information transmission and reception, call channel setting, and communication.

The gap filters 120 and 140 perform the same function regardless of the area, and if the functions are largely divided, the functions of the gap filter 120 and the first terminal for the DMB relay and the adjacent DMB mobile communication terminals 100, 110 and 160 are performed. A communication function, a satellite communication function for allowing channel setting and data transmission and reception of a gap filter and a channel at another place through the communication satellite 130, and the mobile communication terminals 100, 110, and 160 for DMB transmission and reception A function of setting up a call channel by searching for a target, a function of finding a call destination search and channel setting that is requested from the outside, and setting up a call channel by finding adjacent DMB mobile communication terminals (100, 110, 160); If the externally requested call target is a general mobile communication terminal or a wired telephone terminal, it includes functions for relaying it to the general communication network. That is, the gap filters 120 and 140 serve as base stations for mobile communication, not just DMB relays.

Then, look at the situational operation of the members having the above functions.

First, in the foreign country divided by the left side, using its own cellular terminal 100 equipped with the DMB transceiver 105 or using its own PCS terminal 110 equipped with the DMB transceiver 115, A process of making a call to a terminal 160 of any model equipped with the DMB transceiver 165 will be described.

The user transmits information of a call object to the adjacent gap filter 120 through the DMB transceivers 105 and 115 mounted on the terminals 100 and 110, and information provided to distinguish it from general DMB transmission / reception contents. You can set the format of the. For example, an identifier indicating that a telephone call is made using a DMB, a country code where a target to be called is located, an identifier indicating whether or not the terminal to be called has a DMB transmission / reception function, and a telephone number of the terminal to be called. And the like.

The adjacent gap filter 120 receiving the call request analyzes the corresponding content, and if the call target terminal is a terminal capable of DMB communication, the corresponding gap filter 120 of the corresponding country (the domestic example) through the DMB broadcasting method through the communication satellite 130. The call request information is transmitted to all gap filters 140. Then, the target terminal 160 having the DMB transmission / reception function, which receives the call broadcast relayed by all the gap filters 140 in Korea, responds to this, and the adjacent gap filter 140 receiving the signal reports the fact. Through 130, the foreign gap filter 120 that made the call request is notified. Then, the foreign gap filter 120 establishes a communication channel between the target terminal 160 and the terminals 100 and 110 located in the foreign country via the domestic gap filter 140 that has responded, and transmits and receives the contents of the call. do.

Naturally, the same method may be used when making a call to a DMB transmission / reception terminal located in a foreign country in Korea.

Next, a description will be given of a process of making a call to a general terminal or a landline telephone of a DMB transmission / reception terminal (100, 110) located in a foreign country.

When the call request of the same method as described above is basically transmitted to the gap filter 120 by using the DMB transmission terminals 100 and 110 located in a foreign country, the gap filter 120 analyzes the content of the request and is the subject of the call. It can be confirmed that the terminal is a terminal for which DMB communication is impossible. The gap filter 120 recognizes the call request information through the communication satellite 130 to the gap filter 140 of all or any region of the corresponding country (domestic example) through the DMB broadcasting method. While transmitting the information, the gap filter having a relay function for the wired / wireless communication network of the corresponding country is requested to respond. When the gap filter 140 having a relay function for the wired / wireless communication network (represented by the base station) 150 is responded to by the request, the foreign gap filter 120 passes through the domestic gap filter 140 that has responded. The call request is transmitted to the wired / wireless communication network of the corresponding country, and the terminals 100 and 110 located in a foreign country make a call with the call target terminals 170a and 170b by using the call channel provided by the wired / wireless communication network.

By using the DMB transmission and reception terminal (100, 110) as described above, it is possible to freely make a call with a domestic terminal even in a foreign country, and in this case, there is no need to use a foreign wired or wireless communication network. You do not have to spend.

On the contrary, when a user of a domestic terminal makes a call to a foreign DMB transmitting / receiving terminal (100, 110) through a gap filter depending on the type of terminal, or a call to the gap filter through a wired / wireless communication network Since it can be performed by requesting a call relay, it can be realized by simply inputting an additional identification code for notifying that the user is calling a DMB transmission / reception terminal or interworking with an intelligent network.

As described above, by mounting the DMB transceiver in the terminal and expanding the role of the gap filter used only for the DMB relay, it is possible to make and receive calls with its own mobile terminal regardless of the mobile communication methods of other countries. .

As described above, the global mobile communication system using the digital multimedia broadcasting system of the present invention uses a digital multimedia broadcasting (DMB) system, which is considered to be rapidly spreading, and if a corresponding system exists, its own terminal without going through other telecommunication companies anywhere in the world. It allows you to make and receive phone calls without having to pay for expensive bills and use a mobile telecommunications network from a foreign telecommunications company. There is no need for an interlocking service application procedure, which greatly increases the user's convenience.

Claims (6)

A gap filter having a satellite communication function and transmitting and receiving in a DMB frequency manner while relaying a digital multimedia broadcasting (DMB) and identifying a specific object; A communication satellite for relaying communication between gap filters regardless of a state; DMB transmission and reception means capable of transmitting and receiving in the gap filter and the DMB frequency method is equipped, through which a mobile communication for requesting the call channel setting with the terminal equipped with the DMB transmission and reception means located in another station in the adjacent gap filter Global mobile communication system using a digital multimedia broadcasting system comprising a terminal. The global mobile communication system using a digital multimedia broadcasting system according to claim 1, wherein the gap filter relays a communication channel established with a mobile communication terminal located in another station to a wired / wireless communication network of the local station through a gap filter of another station. The global mobile communication system using a digital multimedia broadcasting system according to claim 1, wherein the DMB transmission / reception means and the gap filter installed in the mobile communication terminal communicate using a frequency of 2.5 GHz band. The mobile communication terminal of claim 1, wherein the mobile communication terminal uses a mounted DMB transmission / reception means to provide a gap filter with a desired target country identification number, an identifier indicating whether a reception target is a DMB transmission / reception function, and telephone number information of a reception target. Global mobile communication system using a digital multimedia broadcasting system, characterized in that it is used to set the channel for the call connection. 5. The method of claim 4, wherein the gap filter checks whether the reception target has a DMB transmission / reception function among the received information, and if the gap connection is a call connection to a target capable of DMB transmission / reception, the gap filter applies to all gap filters of the corresponding country through a target country identification number. A digital multimedia, characterized by providing a terminal phone number and all gap filters searching for a terminal having the corresponding phone number based on the gap number, and setting a gap channel and a communication channel if there is a gap filter where the terminal responds. Global mobile communication system using broadcasting system. 5. The method of claim 4, wherein the gap filter checks whether the reception target has a DMB transmission / reception function among the received information, and when the call connection is made to a target that cannot transmit / receive DMB, a gap of the corresponding country through a target country identification number and a communication satellite. It provides a corresponding information to some of the filters and requests the response of the gap filter, which can relay the call to the wired / wireless network among the gap filters received therein, and forms a communication channel with the corresponding gap filter and then connects the wired or wireless connection. A global mobile communication system using a digital multimedia broadcasting system, characterized in that for setting up a communication channel with a wired / wireless terminal to be received by relaying a call to a communication network.

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