KR20060133701A - Method for diverting the mode of mobile terminal located at specific spot - Google Patents

Abstract

A mode conversion method in a mobile terminal located at a specific zone is provided to lighten system load in a mobile communication and to reduce a waste of radio resources by converting the present mode of a mobile terminal, located at a specific zone, through an RFID tag, installed at the zone, or a local DARC network, formed at the zone, in order to compulsorily tune the mobile terminal to the mobile communication network of the zone. If the user of a DBDM(Dual Band Dual Mode) terminal(30) having an RFID reader(31) enters a building(A), in which an RFID tag(50) is installed, wherein the building is located within a WCDMA service area, the DBDM terminal(30) receives a WCDMA terminal mode transfer command, recorded in the RFID tag(50), through the RFID reader(31). The DBDM terminal(30) transfers its own present mode to the WCDMA mode according to the WCDMA terminal mode transfer command.

Description

Method for diverting the mode of mobile terminal located at specific spot}

1A is a diagram illustrating an embodiment of a specific area in which an RFID tag used in the present invention is installed.

1B is a flowchart illustrating a method of switching a mode of a mobile communication terminal located in a specific region of FIG. 1A according to the present invention.

FIG. 2A illustrates one embodiment of a particular area in which a local data radio network is used used in the present invention. FIG.

FIG. 2B is a flowchart illustrating a method of switching a mode of a mobile communication terminal located in a specific region of FIG. 2A according to the present invention. FIG.

* Explanation of symbols on the main parts of the drawing

10: Wireless Network Controller (WCDMA RNC)

11: home location register (WCDMA HLR)

20: base station controller (CDMA2000 1X EV-DO BSC)

21: Home Location Register (CDMA2000 1X EV-DO HLR)

30: Dual Band Dual Mode Terminal (DBDM Terminal)

31: RFID Reader

50: RFID Tag

The present invention relates to a method of switching a mode of a mobile communication terminal, and more particularly, when the mobile communication terminal is located in a specific area, an RFID tag installed in the above area to be forcibly synchronized with the mobile communication network of the corresponding area. Alternatively, the present invention relates to a mode switching method of a mobile communication terminal located in a specific area in which a mobile communication terminal switches a terminal mode by a local data radio network (DARC network) formed in the above area and tunes to a mobile communication network of a corresponding area.

The mobile communication network is divided into IS-95 based mobile network belonging to 2nd generation, CDMA2000 1X EV-DO based mobile communication belonging to 2.5 generation, and WCDMA based mobile communication belonging to third generation. The existing CDMA2000 1X EV-DO based mobile communication network provides a data transmission service of up to 2.4 Mbps, whereas the conventional IS-95 based mobile communication network provides a data transmission service of less than 144 kbps. On the other hand, the WCDMA-based mobile communication network currently being built provides a data transmission service of up to 14Mbps.

Meanwhile, according to the development of mobile communication network, IS-95 based mobile communication network has already been established in all regions of Korea, while CDMA2000 1X EV-DO based mobile communication network has been built up to the area of eup / myeon, especially WCDMA based mobile communication network It is constructed to be limited to a specific WCDMA service providing area selected by the metropolitan area, preferably a mobile communication network operator.

In addition, the mobile communication terminal has been released in accordance with the specifications of the mobile communication network, and in the state where heterogeneous mobile communication networks coexist as described above, each mobile communication terminal is provided with a service through synchronization with the corresponding mobile communication network according to the terminal support specification. have. Recently, a dual band dual mode terminal capable of connecting to both a CDMA2000 1X EV-DO based mobile communication network and a WCDMA based mobile communication network has also been released.

Korean Unexamined Patent Publication No. 2005-37894 (name of the invention: "a mobile communication terminal supporting dual band / dual mode and a control method thereof") discloses a method of switching a terminal mode of a dual band dual mode terminal. Looking briefly at this prior art, the user's movement, for example, switching the terminal mode as the user moves from the CDMA2000 1X EV-DO based mobile network coverage area [asynchronous wireless device activation and synchronous wireless device deactivation]. The terminal mode is switched (activating the synchronous radio device and deactivating the asynchronous radio device) as the user moves from the WCDMA based mobile network service area to the CDMA2000 1X EV-DO based mobile network service area.

As mentioned above, even if different mobile communication networks exist in each region, the mobile communication terminal may synchronize with other mobile communication networks by switching the terminal mode according to the mobile communication network according to the movement of the user.

However, when a user with a dual band dual mode terminal is in a CDMA2000 1X EV-DO service area to seamlessly receive a high definition video call and moves into a WCDMA service area, preferably a WCDMA service building, the dual band dual mode Since the terminal continues to hold the radio channel with the base station of the CDMA2000 1X EV-DO-based mobile communication network connected outside the WCDMA service building, the mode switching is not properly performed. Therefore, when a user attempts to make a WCDM service, for example, a high-definition video call in a WCDMA service building, the dual-band dual-mode terminal switches the terminal mode only at the time of the WCDMA service attempt to establish a wireless channel with a base station of a WCDMA-based mobile communication network. Register the location of the WCDMA user to the home location register. As described above, since the terminal mode is switched only when the WCDMA service is attempted, the user is delayed receiving the WCDMA service by a predetermined time.

On the other hand, a user with a dual-band dual-mode terminal CDMA2000 1X EV-DO service [eg; If you are in the WCDMA service area to download the contents with the JUNE service of SK Telecom Co., Ltd. in Korea and move into the CDMA2000 1X EV-DO service building, the terminal is connected to the outside of the CDMA2000 1X EV-DO service building. The CDMA2000 1X EV-DO network signal is received from the base station of the CDMA2000 1X EV-DO mobile communication network while the wireless channel is continuously held with the base station of the WCDMA based mobile communication network. However, the terminal located in the CDMA2000 1X EV-DO service building receives the CDMA2000 1X EV-DO network signal and searches for the base station of the CDMA2000 1X EV-DO based mobile communication network, but due to the wireless signal strength of the base station of the connected WCDMA based mobile communication network. After recognizing the search failure, the process of returning to the wireless channel with the base station of the WCDMA-based mobile communication network is repeated several times. It is called a ping-pong phenomenon to repeatedly perform the radio channel setting process between the base stations of the mobile communication terminal. This ping-pong phenomenon consumes power of the terminal, and thus, the usage time of the terminal is significantly reduced.

The present invention has been proposed to solve the above problems and to meet the above demands. When the mobile communication terminal is located in a specific area, the RFID tag installed in the above area is forcibly synchronized with the mobile communication network of the corresponding area. tag) or a local data radio network (DARC network) formed in the above region provides a method of switching the mode of the mobile communication terminal located in a specific region, the mobile terminal switches the terminal mode to tune to the mobile communication network of the region. There is a purpose.

In the method of the present invention for achieving the above object, the first mobile communication terminal terminal mode switching command is recorded in the RF tag installed in the first mobile communication network service area, and the mobile communication terminal tuned to the second mobile communication network is Reading data recorded in the RFID tag by an RFID reader in the mobile terminal as it moves to a first mobile communication network service area; And switching the terminal mode to the first mobile communication network terminal mode when the read result is confirmed by the first mobile communication network terminal mode switching command.

On the other hand, according to another method of the present invention, in an FM transmitter installed in a first mobile communication network service area, a first mobile communication terminal terminal mode switching command is transmitted through a data radio channel (DARC), and the mobile is synchronized with the second mobile communication network. As the communication terminal moves to the first mobile communication network service area, at the mobile communication terminal, reading data received through a data radio channel to a pre-loaded DARC receiver; And switching the terminal mode to the first mobile communication network terminal mode when the read result is confirmed by the first mobile communication network terminal mode switching command.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, detailed descriptions of well-known functions or configurations will be omitted if it is determined that the detailed description of the present invention may unnecessarily obscure the subject matter of the present invention. Terms to be described later are terms defined in consideration of functions in the present invention, and may be changed according to intentions or customs of users or operators. Therefore, the definition should be made based on the contents throughout the specification.

In the present invention, when a mobile communication terminal is located in a specific area, it is moved by an RFID tag installed in the above area or a local data radio network (DARC network) formed in the above area so that it is forcibly tuned to the mobile communication network of the corresponding area. The communication terminal switches the terminal mode according to the mobile communication network of the region.

Hereinafter, an embodiment of the present invention is a case where a user having a dual band dual mode terminal moves to a WCDMA service building after being in a CDMA2000 1X EV-DO service area in order to seamlessly receive a high-definition video call through a WCDMA service. For example, it is assumed that an RFID tag is installed in the WCDMA service building (FIGS. 1A and 1B).

Meanwhile, according to another embodiment of the present invention, when a user having a dual band dual mode terminal is located in a WCDMA service area to download contents at a high speed with a CDMA2000 1X EV-DO service, and moves into a CDMA2000 1X EV-DO service building. For example, a local data radio network is formed in the CDMA2000 1X EV-DO service building (FIGS. 2A and 2B).

1A is a diagram illustrating an embodiment of a specific area in which an RFID tag used in the present invention is installed.

As shown in FIG. 1A, building A is a WCDMA service area constructed by a mobile network operator, and inside a building A, a base station / radio network controller (RNC) housed in a WCDMA network (hereinafter, referred to as a wireless network). Collectively referred to as a controller] 10 is provided. In addition, the WCDMA network is provided with a home location register (HLR) 11 for registering terminal location information of a WCDMA subscriber. It further includes basic components such as a Gateway GPRS Support Node (GGSN).

On the other hand, the outside of building A is a CDMA2000 1X EV-DO service area, and in the vicinity of building A, a base station controller (BSC) housed in a CDMA2000 1X EV-DO network (hereinafter, referred to as a base station controller) will be referred to. 20] is provided. In addition, the CDMA2000 1X EV-DO network is provided with a home location register (HLR) 21 for registering terminal location information of a CDMA2000 1X EV-DO subscriber. In addition, a synchronous mobile communication switching center (MSC) and a packet data serving node ( Basic components such as a pack data serving node (PDSN) are further provided. In addition, the terminal location information of the CDMA2000 1X EV-DO network subscriber is registered in the home location register 11 of the WCDMA network (this home location register is commonly referred to as a dual stack home location register), and the CDMA2000 1X EV- The home position register 21 may not be provided in the DO network.

The mobile communication terminal shown in the drawing is a well-known dual band dual mode terminal 30 capable of connecting to both a WCDMA network and a CDMA2000 1X EV-DO network, and in particular, an RFID reader (RFID) capable of reading information recorded in an RFID tag. Reader 31 is mounted. Meanwhile, in the drawing, the movement of the dual band dual mode terminal 30 to the inside of the building A by the user is represented by an arrow. In addition, the WCDMA network is an asynchronous method and performs wireless communication with the mobile communication terminal in the 2 GHz frequency band, and the CDMA2000 1X EV-DO network is a synchronous method, similar to the existing IS-95, in the 800 MHz and 1.7 to 1.8 GHz frequency bands. Perform wireless communication with the mobile communication terminal. Accordingly, the dual-mode terminal 30 is also implemented in accordance with the specifications of the WCDMA network and CDMA2000 1X EV-DO network, it will be readily understood by those skilled in the art that mode switching must be performed to access the mobile communication network.

In particular, the RFID tag 50 is installed inside the building A, preferably at the entrance of the building, which is a place where the user can enter and exit the building. In the present invention, as the dual-band dual-mode terminal 30 is located in the building A which is a WCDMA service area, the WCDMA terminal mode switching command is transmitted to the RFID tag 50 to synchronize the dual-band dual-mode terminal 30 to the WCDMA network. Make a note of it.

That is, when the user enters building A, the dual band dual mode terminal 30 receives the WCDMA terminal mode switching command recorded in the RFID tag 50 through the RFID reader 31. Accordingly, the dual band dual mode terminal 30 switches the terminal mode to the WCDMA mode according to the WCDMA terminal location registration command. Thereafter, the dual band dual mode terminal 30 searches for a known terminal location information registration process, for example, the nearest WCDMA network access point from the current location, and checks the wireless network controller 10 installed in the building A as a result of the search. The WCDMA network tuning process is performed by accessing the WCDMA network with the wireless network controller 10 and registering the terminal location information with the home location register 11.

The above-described RF tag 50 may be implemented as an active RFID tag or a passive RFID tag. For example, the active RFID tag carries a WCDMA terminal mode switching command on the radio wave at regular intervals and transmits it to the outside. Accordingly, the dual band dual mode terminal 30 receives the WCDMA terminal mode switching instruction carried on the radio wave through the RF reader 31. Will receive. On the other hand, the passive tag is activated by the radio wave received from the RF reader 31 of the external, that is, the dual-band dual-mode terminal 30, the WCDMA terminal mode switching command is transmitted to the reflected wave for the radio wave. Detailed descriptions of the known active RFID tag, the known passive RFID tag, and the known RFID reader will be omitted.

Hereinafter, a method of switching a terminal mode for tuning a dual band dual mode terminal 30 located in a building A shown in FIG. 1A to a WCDMA network will be described in detail with reference to FIG. 1A.

1B is a flowchart illustrating a method of switching a mode of a mobile communication terminal located in a specific region of FIG. 1A according to the present invention.

Currently, the user is located near the building A, and thus the dual band dual mode terminal 30 has a wireless channel established with the base station controller 20 belonging to the CDMA2000 1X EV-DO network, which is a mobile communication network near the building A. (200). Here, the dual band dual mode terminal 30 is connected to the base station controller 20 in the state set to the CDMA2000 1X EV-DO mode. On the other hand, the user will be described as an example that does not receive a separate mobile communication service (eg, phone calls, content download, etc.) to the dual-band dual-mode terminal 30 from the outside of the building A.

Then, when the user moves to the inside of the building A which is the WCDMA service area in order to seamlessly receive the high-definition video call with the WCDMA service (201), the dual-band dual-mode terminal 30 in the building A through the RFID reader 31 A WCDMA terminal mode switching command is received from the RF tag 50 installed at 202. At this time, by limiting the radio wave coverage of the RF tag 50, the user is located in a neighboring area outside the building A, that is, forcing the terminal mode switching in the mobile communication terminal to receive the CDMA2000 1X EV-DO service instead of the WCDMA service It is desirable not to lose.

Then, the dual band dual mode terminal 30 reads the data carried by the RF reader 31 to recognize the WCDMA terminal mode switching command to switch the terminal mode to the WCDMA mode (203). At this time, the dual band dual mode terminal 30 deactivates the previously activated CDMA2000 1X EV-DO mode (aka parking) and activates the WCDMA mode.

Thereafter, the dual band dual mode terminal 30 switches the terminal mode according to the WCDMA terminal location registration command and searches for the WCDMA network access point nearest to the current location (204).

As a result of the search, the dual band dual mode terminal 30 checks the wireless network controller 10 installed in the building A, and tunes the terminal frequency to the frequency band and frequency number of the wireless network controller 10 to establish a wireless channel connection. (205).

Thereafter, the dual band dual mode terminal 30 requests the wireless network controller 10 to register its location information in the WCDMA network (206).

Then, the wireless network controller 10 registers the current position of the dual band dual mode terminal 30 to the home location register 11 with its own information (base station ID, etc.) (207), and terminal location registration is normally performed. In step 208, the home location register 11 notifies the wireless network controller 10 of the terminal location registration completion.

Accordingly, the wireless network controller 10 notifies the dual band dual mode terminal 30 of the terminal location registration completion (209). With the above process, the dual band dual mode terminal 30 finishes the process of tuning to the WCDMA network.

Then, as soon as the user enters the building A, if the user calls a friend's mobile terminal to apply for a video call service, the WCDMA network provides a high-definition video call service without a separate terminal mode switching process. Immediately provided to the terminal 30, the dual-band dual-mode terminal 30 is able to make a call while looking at the face of a friend without a WCDMA service delay when the video call is applied without a ping-pong phenomenon (210).

2A is a diagram illustrating an embodiment of a specific area in which a local data radio network used in the present invention is formed.

As shown in FIG. 2A, building B is a CDMA2000 1X EV-DO service area constructed by a mobile network operator, and a base station / base station controller (BSC; Base Station) accommodated in the CDMA2000 1X EV-DO network inside building B. Controller (hereinafter referred to as "base station controller B") 60 is provided. In addition, the CDMA2000 1X EV-DO network includes a home location register (HLR) 61 in which terminal location information of a CDMA2000 1X EV-DO subscriber is registered. In addition, a mobile communication switching center (MSC) and a packet data serving node (PDSN) are provided. And basic components such as Pack Data Serving Node.

On the other hand, the outside of the building B is a WCDMA service area, the base station controller (BSC; Base Station Controller) accommodated in the WCDMA network near the building B (hereinafter referred to as "base station controller A") (70) Is provided. In addition, the WCDMA network includes a home location register (HLR) 71 in which terminal location information of a WCDMA subscriber is registered. In addition, asynchronous mobile communication switching center (MSC), a packet switching support node (SGSN), Basic components such as a Gateway GPRS Support Node (GGSN) are further provided.

The mobile communication terminal shown in the drawing is a well-known dual band dual mode terminal 80 capable of connecting to both a CDMA2000 1X EV-DO network and a WCDMA network, and in particular, can receive information transmitted through a data radio channel (DARC). The DARC receiver 81 is mounted. The DARC receiver 81 is implemented with an FM antenna (DARC antenna), an FM tuner, an FM demodulator, a DARC demodulator (LMSK demodulator), a DARC decoder, and the like. Meanwhile, in the drawing, the movement of the dual band dual mode terminal 80 into the building B by the user is represented by an arrow.

In particular, inside the building B, there is provided an FM transmitter 90 for forming a local data radio network (DARC network). In the present invention, as the dual band dual mode terminal 80 is located in building B, which is a CDMA2000 1X EV-DO service area, the FM transmitter for tuning the dual band dual mode terminal 80 to the CDMA2000 1X EV-DO network. At 90, it sends a CDMA2000 1X EV-DO terminal mode switch command to the DARC.

That is, when the user enters building B, the dual band dual mode terminal 80 receives the CDMA2000 1X EV-DO terminal mode switching command from the FM transmitter 90 to the DARC through the DARC receiver 81. Accordingly, the dual band dual mode terminal 80 switches the terminal mode to the CDMA2000 1X EV-DO mode according to the CDMA2000 1X EV-DO terminal mode switching command. Subsequently, the dual band dual mode terminal 80 searches for a known terminal location information registration process, for example, the nearest CDMA2000 1X EV-DO network access point from the current location, and the base station controller B (60) installed in the building B as a result of the search. CDMA2000 1X EV-DO network tuning is performed by accessing the CDMA2000 1X EV-DO network to the base station controller B 60 and registering the terminal location information with the home location register 61.

The above-mentioned FM transmitter 90 transmits the CDMA2000 1X EV-DO terminal mode switching command inputted from the information providing device (or information provider) in advance to DARC data (hereinafter, referred to as "CDMA2000 1X EV-DO for DARC"). Terminal mode switching command) and the DARC CDMA2000 1X EV-DO terminal mode switching command is carried in the spare band of the FM frequency band according to the DARC transmission protocol, and is transmitted to the building B inside the DARC. Accordingly, the dual band dual mode terminal 80 receives the CDMA2000 1X EV-DO terminal mode switching command for DARC through the DARC receiver 81 to obtain the CDMA2000 1X EV-DO terminal mode switching command through a DARC decoding process. do. Detailed description of the known FM transmitter 90 and DARC receiver 81 will be omitted.

Hereinafter, a method of switching a terminal mode for tuning a dual band dual mode terminal 80 located in building B shown in FIG. 2A to a CDMA2000 1X EV-DO network will be described in detail with reference to FIG. 2B.

2B is a flowchart illustrating a method of switching a mode of a mobile communication terminal located in a specific region of FIG. 2A according to the present invention.

Currently, the user is located near the building B. The dual-band dual-mode terminal 80 is in the WCDMA mode, and the wireless channel is established with the base station controller A 70 belonging to the WCDMA network, which is a mobile communication network in the area near the building B. 400. On the other hand, the user will be described as an example that does not receive a separate mobile communication service (eg, phone calls, content download, etc.) to the dual-band dual-mode terminal 80 from the outside of the building B.

Subsequently, when the user moves into the building B, which is the CDMA2000 1X EV-DO service area, to download the content at a high speed with the CDMA2000 1X EV-DO service (401), the dual-band dual-mode terminal (80) has a DARC receiver ( In operation 402, a CDMA2000 1X EV-DO terminal mode switching command is received from the FM transmitter 90 installed in the building B to the DARC. At this time, by controlling the transmission output of the FM transmitter 90 to limit the radio wave coverage range, a user located in a neighboring area outside the building B, that is, mandatory in a mobile communication terminal to receive WCDMA service, not CDMA2000 1X EV-DO service It is preferable to prevent the terminal mode switching to be made. Here, the FM frequency bands for transmitting the CDMA2000 1X EV-DO terminal mode switching command in the CDMA2000 1X EV-DO service areas, such as Building B, are preferably allocated from the radio control station or the like, but all of the service areas are the same. The FM frequency band may be used. That is, due to the practically limited number of channels, it is difficult to allocate different FM frequency bands to all of the service areas, and as described above, the CDMA2000 1X EV-DO terminal mode switching command is controlled by controlling the FM transmission output. Because it can be delivered only to the mobile communication terminal located within, each service area can use the same FM frequency band.

Then, the dual-band dual-mode terminal 80 reads the data carried on the radio wave to the DARC receiver 81 and recognizes that it is a CDMA2000 1X EV-DO terminal mode switching command to switch the terminal mode to the CDMA2000 1X EV-DO mode. (403). At this time, the dual band dual mode terminal 80 deactivates the previously activated WCDMA mode (aka parking) and activates the CDMA2000 1X EV-DO mode.

Thereafter, the dual band dual mode terminal 80 searches for the CDMA2000 1X EV-DO network access point nearest to the current location after switching to the CDMA2000 1X EV-DO mode (404).

As a result of the search, the dual band dual mode terminal 80 identifies the base station controller B 60 installed in the building B, and tunes the terminal frequency to the frequency band and frequency number of the base station controller B 60 to establish a wireless channel connection. (405).

Then, the dual band dual mode terminal 80 requests the base station controller B 60 to register its own [terminal] location information in the CDMA2000 1X EV-DO network (406).

Then, the base station controller B 60 registers the current position of the dual band dual mode terminal 80 to the home location register 61 with its own information (base station ID, etc.) (407), and the terminal location registration is normally performed. In step 408, the home location register 61 notifies the base station controller B 60 that the terminal location registration is completed.

Accordingly, the base station controller B 60 notifies the dual band dual mode terminal 80 that the terminal location registration is completed (409). With the above process, the dual band dual mode terminal 80 finishes the process of tuning to the CDMA2000 1X EV-DO network.

Then, when the user applies for the music content download service as soon as the user enters the building B, the CDMA2000 1X EV-DO network provides the high-speed content download service without the process of changing the terminal mode. In this case, the dual-band dual-mode terminal 80 can download the music file at high speed without service delay at the time of applying for the music content download without the ping-pong phenomenon (410).

On the other hand, according to the third embodiment of the present invention, in a WCDMA service building, an FM transmitter for transmitting a WCDMA terminal mode switching command to DARC is installed, and a user having a dual band dual mode terminal equipped with a DARC receiver is installed. In the case of being in the CDMA2000 1X EV-DO service area to seamlessly receive a high-definition video call through the WCDMA service and moving into the WCDMA service building, the dual band is based on the technical contents disclosed in FIGS. 1A and 1B and 2A and 2B. The mode of the dual mode terminal can be switched to the WCDMA mode.

Meanwhile, according to the fourth embodiment of the present invention, an RF tag in which a CDMA2000 1X EV-DO terminal mode switching command is recorded is installed in a CDMA2000 1X EV-DO service building, and a dual band dual mode in which an RFID reader is mounted. A user with a terminal is in a WCDMA service area to download a mobile movie file to a CDMA2000 1X EV-DO service and then moves into the CDMA2000 1X EV-DO service building. FIGS. 1A and 1B and 2A and 2B. Based on the technical details disclosed in the present invention, the dual-band dual-mode terminal can be switched to the CDMA2000 1X EV-DO mode.

Additionally, in response to the user's request for using the mobile communication service (ie, moving to a service providing area) as described above, the mobile communication terminal is tuned from the WCDMA network to the CDMA2000 1X EV-DO network or the mobile communication terminal is CDMA2000 1X. Although it may be possible to tune over from the EV-DO network to the WCDMA network, in order to reduce the load on the mobile network side system by distributing users to a specific mobile communication network, by forcing the mobile terminal to switch the mode without using the mobile communication service. It can also be tuned to a specific mobile network.

While the content of the present invention has been described by way of examples, the embodiments of the present invention are merely illustrative of the present invention and should not be construed as limiting the scope of the present invention. Those skilled in the art to which the present invention pertains may modify or alter the present invention in various forms within the principles and scope described in the claims herein.

As described above, according to the present invention, the mode of the mobile communication terminal is changed by switching the mode of the mobile communication terminal to the mobile communication network of the corresponding area by the RFID tag or the local data radio network of the corresponding area as the user moves the service area. To reduce the load on the mobile communication network side and to reduce the radio resource waste.

In addition, the present invention has an effect that the user can provide a mobile communication service of the region in a short time because the terminal mode switch is made in advance before the user attempts a mobile communication service.

In addition, the present invention eliminates the ping-pong phenomenon in the mobile communication service boundary area, thereby reducing the power consumption of the terminal.

Claims (4)

In the RFID tag installed in the first mobile communication network service area, a first mobile communication terminal terminal mode switching command is recorded. In the mobile communication terminal, as the mobile communication terminal tuned to the second mobile communication network moves to the first mobile communication network service area, Reading data recorded in the RFID tag with an RFID reader already mounted; And Switching the terminal mode to the first mobile communication network terminal mode when the read result is confirmed by the first mobile communication network terminal mode switching command. Mode switching method of a mobile communication terminal located in a specific region including a. The method of claim 1, The radio wave reach range of the RF tag is limited to the first mobile communication network service area. The FM transmitter installed in the first mobile communication network service area transmits a first mobile communication terminal terminal mode switching command through a data radio channel (DARC), In the mobile communication terminal, as the mobile communication terminal tuned to the second mobile communication network moves to the first mobile communication network service area, Reading data received through a data radio channel to a pre-loaded DARC receiver; And Switching the terminal mode to the first mobile communication network terminal mode when the read result is confirmed by the first mobile communication network terminal mode switching command. Mode switching method of a mobile communication terminal located in a specific region including a. The method of claim 3, wherein The radio wave reach range of the FM transmitter is limited to within a first mobile communication network service area.

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