KR20090049795A - The moudle and method of connecting to sharing radio frequency - Google Patents

The moudle and method of connecting to sharing radio frequency Download PDF

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KR20090049795A
KR20090049795A KR1020070116092A KR20070116092A KR20090049795A KR 20090049795 A KR20090049795 A KR 20090049795A KR 1020070116092 A KR1020070116092 A KR 1020070116092A KR 20070116092 A KR20070116092 A KR 20070116092A KR 20090049795 A KR20090049795 A KR 20090049795A
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communication
unit
terminal
usim card
antenna
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KR100930821B1 (en
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이상훈
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(주)애니쿼터스
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
    • G06K7/10237—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves the reader and the record carrier being capable of selectively switching between reader and record carrier appearance, e.g. in near field communication [NFC] devices where the NFC device may function as an RFID reader or as an RFID tag
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/0723—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits

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Abstract

본 발명은 이동통신 단말기 내부에 USIM 카드부와 NFC 통신부가 함께 구성되어 NFC 통신부도 RF통신을 하고, USIM 카드부도 RF 통신을 하여 RF 충돌이 발생되는 것을 방지하기 위해, RF 컨트롤부, USIM 카드부, NFC 통신부, RF 안테나가 구성됨으로서, RF 컨트롤부의 제어를 통해 하나의 RF 안테나에 NFC 통신부가 연결되어 RF 통신을 하거나 또는 USIM 카드부가 연결되어 RF 통신을 할 수 있고, USIM 소켓에 USB 단자와 RF 안테나를 같은 라인으로 연결하여 USB 데이터 통신과 RF 통신을 원활하게 송수신할 수 있는 이동통신 단말기용 RF공유 연결모듈 및 이를 이용한 RF 통신방법을 제공하는데 그 목적이 있다.According to the present invention, the USIM card unit and the NFC communication unit are configured together in the mobile communication terminal, so that the NFC communication unit also performs RF communication, and the USIM card unit also performs RF communication to prevent the occurrence of an RF collision, the RF control unit and the USIM card unit. , NFC communication unit, the RF antenna is configured, through the control of the RF control unit, the NFC communication unit is connected to one RF antenna to perform RF communication or the USIM card unit is connected to the RF communication, USB terminal and RF to the USIM socket It is an object of the present invention to provide an RF sharing connection module for a mobile communication terminal and an RF communication method using the same, which is capable of transmitting and receiving USB data communication and RF communication by connecting antennas in the same line.

RF 컨트롤부, USIM 카드부, NFC 통신부, RF 안테나 RF control unit, USIM card unit, NFC communication unit, RF antenna

Description

이동통신 단말기용 ＲＦ공유 연결모듈 및 이를 이용한 ＲＦ 통신방법{THE MOUDLE AND METHOD OF CONNECTING TO SHARING RADIO FREQUENCY}RF shared connection module for mobile communication terminal and RF communication method using same {THE MOUDLE AND METHOD OF CONNECTING TO SHARING RADIO FREQUENCY}

본 발명은 이동통신 단말기 내부에 RF 컨트롤부의 제어를 통해 하나의 RF 안테나에 NFC 통신부가 연결되어 RF 통신을 하거나 또는 USIM 카드부가 연결되어 RF 통신을 할 수 있고, USIM 소켓에 USB 단자와 RF 안테나를 같은 라인으로 연결하여 USB 데이터 통신과 RF 통신을 원활하게 송수신할 수 있는 이동통신 단말기용 RF공유 연결모듈 및 이를 이용한 RF 통신방법에 관한 것이다.According to the present invention, the NFC communication unit is connected to one RF antenna to control the RF control unit inside the mobile communication terminal, and the RF communication is performed or the USIM card unit is connected to the RF communication, and the USB terminal and the RF antenna to the USIM socket. The present invention relates to an RF sharing connection module for a mobile communication terminal capable of smoothly transmitting and receiving USB data communication and RF communication by connecting to the same line, and an RF communication method using the same.

현재 WCDMA 단말에서의 RF 통신방법은 USIM 카드에 RF 기능을 이용하여 배터리 또는 별도의 안테나에 연결하여 RF 서비스를 이용하고 있다.Currently, the RF communication method in the WCDMA terminal uses an RF service by connecting to a battery or a separate antenna using the RF function in the USIM card.

향후 대용량의 USIM 카드에서 RF 기능을 지원을 못하는 경우, RF 기능을 지원하기 위하여 NFC(Near Field Communication) 칩을 사용하고 있다.In the future, when a large capacity USIM card does not support the RF function, a NFC (Near Field Communication) chip is used to support the RF function.

NFC 칩은 13.56㎒ 대역에서 RFID 리더 기능과 함께 태그 기능을 동시에 수행할 수 있는 칩으로서, 데이터 통신이 가능하다.The NFC chip is a chip capable of simultaneously performing a tag function together with an RFID reader function in the 13.56 MHz band, and enables data communication.

이러한 NFC칩을 장작한 휴대폰은 10㎝ 이내에 휴대폰, 가전제품, PC 등과 비접촉으로 데이터 호환이 가능해, 단말기에 접촉하지 않고도 교통카드 등 다양한 전자결제 기능을 구현할 수 있다. Mobile phones equipped with such NFC chips can be contacted with mobile phones, home appliances, and PCs within 10 cm without data contact, enabling various electronic payment functions such as transportation cards without touching the terminal.

또 블루투스와 유사하게 사용할 수 있어 휴대폰으로 촬영한 동영상이나 사진 등을 NFC칩을 장착한 폰끼리 교환 가능하다. PC나 TV와도 공유할 수 있어 다양한 애플리케이션을 구현할 수 있다. In addition, it can be used similarly to Bluetooth, and it is possible to exchange videos or photos taken by a mobile phone with an NFC chip. It can also be shared with a PC or TV, enabling a wide variety of applications.

특히, 데이터 통신을 위한 별도의 USB 케이블이 필요하지 않고 금융 SIM카드를 대신할 수 있는 장점도 있다.In particular, it does not need a separate USB cable for data communication, there is an advantage that can replace the financial SIM card.

하지만, NFC 칩이 내장된 이동통신단말에서 현재 사용되고 있는 RF 기능이 내장된 USIM 카드가 들어올 경우에 NFC도 RF 기능이 되고, USIM도 RF 기능이 되어 상호간에 RF 충돌이 발생할 수가 있다.However, when a USIM card with a built-in RF function that is currently used in a mobile communication terminal with an NFC chip is inserted, NFC may become an RF function, and the USIM may become an RF function, thereby causing RF collisions.

즉, 도 1에 도시한 바와 같이, NFC 칩이 내장된 이동통신단말에 SWP 또는 S2C 통신지원이 안되는, RF 기능만이 내장된 USIM 카드의 연결은 USIM 카드의 RF 안테나와 NFC 칩의 RF 안테나를 하이브리드로 듀얼 안테나를 사용하기 때문에, RF 특성이 떨어지는 문제점이 있었다.That is, as shown in FIG. 1, the connection of the USIM card with only the RF function, which does not support SWP or S2C communication to the mobile communication terminal in which the NFC chip is embedded, may use the RF antenna of the USIM card and the RF antenna of the NFC chip. Since the dual antenna is used as a hybrid, there is a problem that the RF characteristics are poor.

또한, USB가 지원되는 대용량의 USIM 카드를 휴대폰이 지원하기 위해 USIM 소켓에 USB 단자와 RF 단자를 다른 라인으로 연결해야 하므로, 회로가 복잡해지고, USB 데이터 통신시, RF 통신이 끊기거나 또는, RF 통신시 USB 데이터 통신이 잘 안되는 문제점이 발생하였다.In addition, the USB terminal and RF terminal must be connected to the USIM socket by different lines in order to support a large capacity USIM card with USB support. Therefore, the circuit becomes complicated, and the RF communication is interrupted during the USB data communication. There was a problem that USB data communication is not good at the time of communication.

상기의 문제점을 해결하기 위해 본 발명에서는 이동통신 단말기 내부에 USIM 카드부와 NFC 통신부가 함께 구성되어 RF 충돌이 발생되는 것을 방지할 수 있고, USIM 소켓 라인에 USB 단자와 RF 안테나를 같은 라인으로 연결함으로서, USB 데이터 통신과 RF 통신을 에러 없이 원활하게 송수신할 수 있는 이동통신단말기용 RF공유 연결모듈 및 이를 이용한 RF 통신방법을 제공하는데 그 목적이 있다.In order to solve the above problems, in the present invention, the USIM card unit and the NFC communication unit are configured together in the mobile communication terminal to prevent the occurrence of RF collision, and the USB terminal and the RF antenna are connected to the USIM socket line in the same line. By doing so, it is an object of the present invention to provide an RF sharing connection module for a mobile communication terminal capable of smoothly transmitting and receiving USB data communication and RF communication without error and an RF communication method using the same.

상기의 목적을 달성하기 위해 본 발명에 따른 이동통신단말기용 RF공유 연결모듈은,RF sharing connection module for a mobile communication terminal according to the present invention to achieve the above object,

이동통신단말기 내부에 USIM 카드부와 NFC 통신부가 함께 구성되어 RF 통신을 하는 RF공유 연결모듈(1)로 이루어지고,USIM card unit and NFC communication unit is configured together inside the mobile communication terminal is made of RF sharing connection module (1) for RF communication,

상기 RF공유 연결모듈(1)는 이동 통신 단말기 본체에 구성된 이동통신 베이스밴드 칩과 연결되어, 이동통신단말기 본체가 부팅이 되고, 이동통신 베이스밴드 칩이 USIM 카드를 체크하여 나온 ATR(Answer to Reset) 값이 들어오면, 그 ATR(Answer to Reset) 값에 의해 RF 안테나가 NFC 통신부 또는 USIM 카드부로 선택되어 RF 통신을 하도록 제어하는 RF 컨트롤부(10)와,The RF sharing connection module 1 is connected to a mobile communication baseband chip configured in the mobile communication terminal main body, the mobile communication terminal main body is booted, and the mobile communication baseband chip checks the USIM card to reveal an ATR (Answer to Reset). ), The RF control unit 10 controls the RF antenna to be selected as the NFC communication unit or the USIM card unit by the ATR (Answer to Reset) value and performs RF communication.

외부와 13.56㎒ 대역에서 RFID 리더 기능과 함께 태그 기능을 동시에 수행할 수 있도록 근거리 데이터 통신을 하면서, RF 컨트롤부의 제어신호가 입력되면 그 제어신호에 따라 USIM 카드가 SWP 또는 S2C 통신이 되도록 통신프로토콜을 보내고, RF 안테나와 연결되어 RF 통신을 하는 NFC 통신부(20)와,While performing short-range data communication to simultaneously perform tag function together with RFID reader function in the external and 13.56MHz band, when the control signal of the RF control unit is input, the communication protocol is established so that the USIM card is SWP or S2C communication according to the control signal. NFC communication unit 20 for transmitting and communicating with the RF antenna, RF,

이동 통신 단말기 본체에 구성된 이동통신 베이스밴드 칩과 연결되어, 사용자 인증, 전자상거래 및 글로벌 로밍서비스 통신을 하면서, RF 컨트롤부의 제어신호가 입력되면, 그 제어신호에 따라 NFC 통신부로부터 SWP 또는 S2C 통신이 차단되고, RF 안테나와 연결되어 RF 통신을 하는 USIM 카드부(30)와,Connected to the mobile communication baseband chip configured in the main body of the mobile communication terminal, the user authentication, e-commerce and global roaming service communication, when the control signal of the RF control unit is input, SWP or S2C communication from the NFC communication unit according to the control signal Blocked and connected to the RF antenna USIM card unit 30 and the RF communication,

상기 RF 컨트롤부의 제어에 따라 NFC 통신부가 비접촉식 근거리 통신 방식에 따라 RF 통신을 하거나 또는 RF 컨트롤부의 제어에 따라 USIM 카드부가 RF 통신을 하는 RF 안테나(40)가 포함되어 PCB 기판으로 모듈화되어 구성됨으로서 달성된다.The NFC communication unit under the control of the RF control unit RF communication according to the non-contact short-range communication method or the USIM card unit RF antenna 40 to the RF communication under the control of the RF control unit is achieved by being modularized and configured as a PCB board do.

또 다른 본 발명에 따른 이동통신단말기용 RF공유 연결모듈을 이용한 RF 통신방법은,Another RF communication method using the RF sharing connection module for a mobile communication terminal according to the present invention,

이동통신단말기의 전원이 부팅되면 최초에 이동통신단말의 베이스밴드 칩이 USIM 카드부의 ATR(Answer to Reset) 값으로 체크를 하는 단계(S100~S110)와,When the power of the mobile communication terminal is booted, the baseband chip of the mobile communication terminal first checks the ATR (Answer to Reset) value of the USIM card unit (S100 to S110),

그 ATR 값이 SWP 또는 S2C가 지원이 되는 값이 올라오면, RF 컨트롤부에 RF안테나를 NFC로 연결시키는 단계(S120)와,When the value of the ATR value is SWP or S2C is supported, connecting the RF antenna to the RF control unit by NFC (S120),

RF 컨트롤부의 제어를 통해 RF 안테나가 NFC 통신부와 연결되어 RF 통신을 하는 단계(S130~S140)와,The RF antenna is connected to the NFC communication unit through the control of the RF control unit for the RF communication (S130 ~ S140),

그 ATR 값이 SWP 또는 S2C가 지원이 안되는 ATR 값이 올라오면 RF 컨트롤부에 RF 안테나를 USIM 카드에 연결시키는 단계(S150)와,If the ATR value is not supported SWP or S2C ATR value rises to connect the RF antenna to the USIM card to the RF control unit (S150),

RF 컨트롤부의 제어를 통해 RF 안테나가 USIM 카드부와 연결되어, USIM 카드부에서 RF 통신을 하는 단계(S160~S180)로 이루어짐으로서 달성된다.The RF antenna is connected to the USIM card unit through the control of the RF control unit, and achieved by the step (S160 ~ S180) of performing RF communication in the USIM card unit.

이상에서 설명드린 바와 같이, 본 발명에서는 이동통신단말기 내부에 USIM 카드부와 NFC 통신부가 함께 구성되어 RF 충돌이 발생되는 것을 방지할 수 있고, USIM 소켓 라인에 USB 단자와 RF 안테나를 같은 라인으로 연결함으로서, USB 데이터 통신과 RF 통신을 에러 없이 원활하게 송수신할 수 있는 효과가 있다.As described above, in the present invention, the USIM card unit and the NFC communication unit are configured together in the mobile communication terminal to prevent the occurrence of RF collision, and connect the USB terminal and the RF antenna to the USIM socket line in the same line. By doing so, there is an effect that can smoothly transmit and receive USB data communication and RF communication without error.

이하, 첨부한 도면을 참조하여 본 발명을 보다 상세하게 설명하고자 한다.Hereinafter, with reference to the accompanying drawings will be described in more detail the present invention.

도 2는 본 발명에 따른 이동통신단말기용 RF공유 연결모듈(1)의 구성요소를 도시한 블록도에 관한 것으로, 이는 RF 컨트롤부(10), USIM 카드부(20), NFC 통신부(30), RF 안테나(40)로 구성된다.2 is a block diagram showing the components of the RF sharing connection module 1 for a mobile communication terminal according to the present invention, which is an RF control unit 10, USIM card unit 20, NFC communication unit 30 , An RF antenna 40.

상기 RF 컨트롤부(10)는 이동 통신 단말기 본체에 구성된 이동통신 베이스밴드 칩과 연결되어, 이동통신단말기 본체가 부팅이 되고, 이동통신 베이스밴드 칩이 USIM 카드를 체크하여 나온 ATR(Answer to Reset) 값이 들어오면, 그 ATR(Answer to Reset) 값에 의해 RF 안테나가 NFC 통신부 또는 USIM 카드부로 선택되어 RF 통신을 하도록 제어하는 곳으로, 이는 도 3에서 도시한 바와 같이, 컨트롤 신호로서 GPIO(General Purpose Input/Output Pin)에 NFC 통신부와 USIM 카드부, RF 안테나가 연결되어 구성된다.The RF control unit 10 is connected to the mobile communication baseband chip configured in the mobile communication terminal main body, the mobile communication terminal main body is booted, the mobile communication baseband chip ATS (Answer to Reset) by checking the USIM card When a value comes in, the ATR (Answer to Reset) value is used to control the RF antenna to be selected by the NFC communication unit or the USIM card unit to perform RF communication. As shown in FIG. Purpose input / output pin) is connected to NFC communication unit, USIM card unit, RF antenna.

본 발명에서는 이동통신단말기의 전원이 부팅되면 최초에 이동통신단말의 베이스밴드 칩이 USIM 카드부의 ATR(Answer to Reset) 값으로 체크를 하며, ATR 값이 SWP(Single Wire Protocol) 또는 S2C(SigIn-SigOut-Connection)가 지원이 되는 값이 올라오면, RF 컨트롤부에 RF안테나를 NFC로 연결을 하고, ATR 값이 SWP(Single Wire Protocol) 또는 S2C(SigIn-SigOut-Connection)가 지원이 안되는 ATR 값이 올라오면 RF 컨트롤부에 RF 안테나를 USIM 카드에 연결되도록 한다.In the present invention, when the power of the mobile communication terminal is booted, the baseband chip of the mobile communication terminal first checks the ATR (Answer to Reset) value of the USIM card unit, and the ATR value is SWP (Single Wire Protocol) or S2C (SigIn-). If the value of SigOut-Connection is supported, the RF antenna is connected to the RF control unit by NFC, and the ATR value is ATR value not supported by SWP (Single Wire Protocol) or S2C (SigIn-SigOut-Connection). When it comes up, the RF control unit connects the RF antenna to the USIM card.

여기서, 상기 ATR(Answer to Reset)에 관해 설명한다.Here, the Answer to Reset (ATR) will be described.

ISO 7816 규격의 모든 IC 카드는 단말기의 리셋신호에 의해 카드가 응답하는 ATR을 기반으로 동작하기 시작한다. 즉 IC 카드가 단말기에 삽입되면 전원이 공급되고, 단말기가 카드에 리셋(RST) 신호를 보내면 카드가 첫번째 응답하는 신호가 ATR이다. All IC cards of the ISO 7816 standard start to operate based on the ATR to which the card responds to a reset signal from the terminal. That is, when the IC card is inserted into the terminal, power is supplied. When the terminal sends a reset (RST) signal to the card, the first signal that the card responds to is ATR.

즉, ATR의 응답에 따라 전원 전압이 결정될 뿐 아니라, ATR에 의해서 프로토콜을 결정하고 초기 특성(Initial Character), 포맷 특성(Format Character), 인터페이스 특성(Interface Character), 히스토리컬 특성(Historical Character), 체크 특성(Check Character), 제조 업체 식별 등 기본적인 동작을 시작하는 가장 중요한 응답 신호이다. That is, not only the power supply voltage is determined according to the response of the ATR, but also the protocol is determined by the ATR, and the initial characteristics, the format characteristics, the interface characteristics, the historical characteristics, It is the most important response signal to start basic operations such as check character and manufacturer identification.

그리고, SWP(Single Wire Protocol)는 하나의 데이터 라인(a data line)을 하나의 라인으로 입출력이 가능한 국제표준용 프로토롤이고, S2C(Signal In, Signal Out)는 하나의 데이터 라인(a data line)을 두개의 라인으로 하고 입출력이 분리가 되는 것이다.In addition, SWP (Single Wire Protocol) is an international standard protocol capable of inputting and outputting one data line as one line, and S2C (Signal In, Signal Out) is one data line. ) Into two lines, and the input and output are separated.

상기 USIM 카드부(20)는 이동 통신 단말기 본체에 구성된 이동통신 베이스밴드 칩과 연결되어, 사용자 인증, 전자상거래 및 글로벌 로밍서비스 통신을 하면서, RF 컨트롤부의 제어신호가 입력되면, 그 제어신호에 따라 NFC 통신부로부터 SWP 또는 S2C 통신이 차단되고, RF 안테나와 연결되어 RF 통신을 하는 곳으로, 이는 단말기 고유번호(ESN)가 저장된 메모리와, 그 메모리에 저장된 ESN이 이동통신 서비스를 위한 인증에 사용될 수 있도록 이동통신단말기의 이동통신 베이스 밴드 칩(퀄컴칩)에 저장된 ESN을 불활성화시키는 ESN 불활성화 수단을 포함한다.The USIM card unit 20 is connected to a mobile communication baseband chip configured in the mobile communication terminal main body, and performs user authentication, electronic commerce and global roaming service communication, and when a control signal of the RF control unit is input, according to the control signal. SWP or S2C communication is blocked from the NFC communication unit, and is connected to the RF antenna to perform RF communication, which is a memory in which the terminal unique number (ESN) is stored and the ESN stored in the memory can be used for authentication for mobile communication service. ESN deactivation means for deactivating the ESN stored in the mobile communication baseband chip (Qualcomm chip) of the mobile communication terminal.

메모리는 USIM에 예비적으로 마련된 64KB 공간 이상의 메모리로서, 단말기 고유번호(ESN)가 저장되어 있다.The memory is a memory of 64 KB or more space preliminarily provided in the USIM, and the terminal unique number (ESN) is stored.

ESN 불활성화 수단은 이동통신단말기의 이동통신 베이스 밴드 칩(퀄컴칩)에 저장되어 있는 ESN과 USIM에 저장되어 있는 ESN의 상호 충돌을 방지하기 위해, USIM이 이동통신단말기에 삽입될 때 이동통신단말기의 이동통신 베이스 밴드 칩(퀄컴칩)에 저장된 ESN을 불활성화시켜서 USIM에 저장된 ESN만이 서비스 인증에 사용될 수 있도록 한다.ESN deactivation means is to prevent the collision between the ESN stored in the mobile communication baseband chip (Qualcomm chip) of the mobile communication terminal and the ESN stored in the USIM, when the USIM is inserted into the mobile communication terminal The ESN stored in the mobile communication baseband chip (Qualcomm chip) is deactivated so that only the ESN stored in the USIM can be used for service authentication.

그리고, 본 발명에 따른 USIM 카드부는 도 4에서 도시한 바와 같이, C1~C8까지의 USIM 소켓 단자로 이루어지고, C4 단자와 C8단자에 USB단자와 RF 안테나 단자를 같은 라인으로 연결하여 USB 데이터 통신과 RF 통신이 되도록 구성된다.In addition, the USIM card unit according to the present invention, as shown in Figure 4, made of USIM socket terminals C1 ~ C8, USB data communication by connecting the USB terminal and the RF antenna terminal to the same line between the C4 terminal and the C8 terminal And RF communication.

즉, USIM 카드의 C4단자와 C8단자는 현재 RF 단으로 사용하고 있으며, 국내 사양에만 적용이 되고 있다. In other words, the C4 terminal and the C8 terminal of the USIM card are currently used as the RF terminal, and are only applied to domestic specifications.

그리고, USIM 카드는 세계 표준 사양을 따르고 있으며, C4단자와 C8단자는 세계표준으로 USB단자로 진행되고 있다.In addition, the USIM card complies with the world standard specifications, and the C4 and C8 terminals are progressing to the USB standard as the global standard.

따라서, 본 발명에서는 C4 단자와 C8단자에 USB단자와 RF 안테나 단자를 같은 라인으로 연결하여 USB 데이터 통신과 RF 통신이 되도록 구성되는 것이 특징이 있다.Therefore, in the present invention, the USB terminal and the RF antenna terminal are connected to the C4 terminal and the C8 terminal by the same line.

이러한 USB단자와 RF 안테나 단자로 이루어진 공유단자 연결회로에 RF 보상회로로서, 직렬 캐패시터를 +단자와, -단자에 각각 연결시켜 구성한다.As a RF compensation circuit, a serial capacitor is connected to the + terminal and the-terminal, respectively, to the shared terminal connection circuit consisting of the USB terminal and the RF antenna terminal.

이로 인해 직렬 개패시터에서는 DC를 정류하여 평활시킴으로서, RF 효율을 향상시킬 수 있고, USB 데이터 라인을 안정화시킬 수가 있다.This allows rectification and smoothing of DC in series capacitors, which can improve RF efficiency and stabilize USB data lines.

그리고, RF 컨트롤부의 제어신호에 따라 NFC 통신부에 의해 SWP 또는 S2C 통신이 지원되도록 구성된다.And, according to the control signal of the RF control unit is configured to support SWP or S2C communication by the NFC communication unit.

상기 NFC(Near Field Communication) 통신부(30)는 외부와 13.56㎒ 대역에서 RFID 리더 기능과 함께 태그 기능을 동시에 수행할 수 있도록 근거리 데이터 통신을 하면서, RF 컨트롤부의 제어신호가 입력되면 그 제어신호에 따라 USIM 카드가 SWP 또는 S2C 통신이 되도록 통신프로토콜을 보내고, RF 안테나와 연결되어 RF 통신을 하는 곳으로, 이는 USIM 카드부로 SWP 또는 S2C 통신이 되도록 지원하게 된 다.The NFC (Near Field Communication) communication unit 30 performs short-range data communication so as to simultaneously perform a tag function together with an RFID reader function in the external and 13.56 MHz band, and when a control signal of the RF control unit is input, according to the control signal. The USIM card sends a communication protocol for SWP or S2C communication, and is connected to an RF antenna to perform RF communication, which supports SWP or S2C communication to the USIM card unit.

본 발명에서는 이동통신단말의 전원이 온(ON)될 경우에 NFC 통신부만 작동되고, NFC 통신부에 의해 SWP 또는 S2C 통신 기능을 갖는 USIM 카드부가 동작되고, 이때 RF 컨트롤부의 제어를 통해 RF 안테나가 NFC 통신부와 연결되어, NFC 통신부에서 RF 통신을 하도록 구성된다.In the present invention, when the power of the mobile communication terminal is ON, only the NFC communication unit is operated, and the USIM card unit having SWP or S2C communication function is operated by the NFC communication unit, and at this time, the RF antenna is controlled by the RF control unit NFC. Connected with the communication unit, the NFC communication unit is configured to perform RF communication.

상기 RF 안테나(40)는 RF 컨트롤부의 제어에 따라 NFC 통신부가 비접촉식 근거리 통신 방식에 따라 RF 통신을 하거나 또는 RF 컨트롤부의 제어에 따라 USIM 카드부가 RF 통신을 하는 역할을 한다.The RF antenna 40 plays a role in which the NFC communication unit performs RF communication according to a non-contact near field communication method under the control of the RF control unit or the USIM card unit performs RF communication under the control of the RF control unit.

이는 도 3에서 도시한 바와 같이, 나선형상으로 배선되어 RF 컨트롤부 일측에 연결된다.As shown in FIG. 3, the wires are spirally connected to one side of the RF control unit.

이하, 본 발명에 따른 이동통신단말기용 RF공유 연결모듈을 이용한 RF 통신방법에 관해 설명한다.Hereinafter, an RF communication method using an RF sharing connection module for a mobile communication terminal according to the present invention will be described.

먼저, 이동통신단말기의 전원이 부팅되면 최초에 이동통신단말의 베이스밴드 칩이 USIM 카드부의 ATR(Answer to Reset) 값으로 체크를 한다(S100~S110)First, when the power of the mobile communication terminal is booted, the baseband chip of the mobile communication terminal first checks the ATR (Answer to Reset) value of the USIM card unit (S100 to S110).

즉, IC 카드가 단말기에 삽입되면 전원이 공급되고, 단말기가 카드에 리셋(RST) 신호를 보내면 카드가 첫번째 응답하는 신호가 ATR(Answer to Reset)이다. 본 발명에서는 ATR(Answer to Reset)값을 체크한다.That is, when the IC card is inserted into the terminal, power is supplied, and when the terminal sends a reset (RST) signal to the card, the signal to which the card responds first is Answer to Reset (ATR). In the present invention, an ATR (Answer to Reset) value is checked.

그 ATR 값이 SWP 또는 S2C가 지원이 되는 값이 올라오면, RF 컨트롤부에 RF안테나를 NFC로 연결시킨다(S120)When the value of the ATR value is SWP or S2C is supported, the RF antenna is connected to the RF antenna NFC (S120)

이어서, RF 컨트롤부의 제어를 통해 RF 안테나가 NFC 통신부와 연결되어 RF 통신을 하게 된다(S130~S140).Subsequently, the RF antenna is connected to the NFC communication unit through the control of the RF control unit to perform RF communication (S130 to S140).

즉, 외부와 13.56㎒ 대역에서 RFID 리더 기능과 함께 태그 기능을 동시에 수행할 수 있도록 근거리 데이터 통신을 하게 된다.That is, short-range data communication is performed so that the tag function can be simultaneously performed with the RFID reader function in the external and 13.56MHz band.

이어서, 그 ATR 값이 SWP 또는 S2C가 지원이 안되는 ATR 값이 올라오면 RF 컨트롤부에 RF 안테나를 USIM 카드에 연결된다(S150).Subsequently, when the ATR value rises up to an ATR value not supported by SWP or S2C, an RF antenna is connected to the USIM card in the RF control unit (S150).

이어서, RF 컨트롤부의 제어를 통해 RF 안테나가 USIM 카드부와 연결되어, USIM 카드부에서 RF 통신을 하게 된다(S160~S180).Subsequently, the RF antenna is connected to the USIM card unit through the control of the RF control unit to perform RF communication in the USIM card unit (S160 to S180).

이때, USIM 카드부에서는 이동통신 베이스밴드 칩과 연결되어, 사용자 인증, 전자상거래 및 글로벌 로밍서비스 통신을 하게 된다.At this time, the USIM card unit is connected to the mobile communication baseband chip to perform user authentication, e-commerce and global roaming service communication.

도 1은 종래 이동통신단말기 내부에 USIM 카드부와 NFC 통신부가 함께 구성되어, USIM 카드의 RF 안테나와 NFC 칩의 RF 안테나가 듀얼 안테나로 구성된 것을 도시한 일실시예도,Figure 1 is a conventional mobile communication terminal is configured with a USIM card unit and the NFC communication unit together, an embodiment showing that the RF antenna of the USIM card and the RF chip of the NFC chip is composed of a dual antenna,

도 2는 본 발명에 따른 이동통신단말기용 RF공유 연결모듈(1)의 구성요소를 도시한 블록도,2 is a block diagram showing the components of the RF sharing connection module 1 for a mobile communication terminal according to the present invention;

도 3은 본 발명에 따른 이동통신단말기용 RF공유 연결모듈(1)의 구성요소간의 연결상태를 도시한 연결상태도,3 is a connection state diagram showing a connection state between the components of the RF shared connection module 1 for a mobile communication terminal according to the present invention;

도 4는 본 발명에 따른 이동통신단말기용 RF공유 연결모듈(1) 중 USIM 카드부의 구성을 도시한 회로도,4 is a circuit diagram showing the configuration of the USIM card of the RF shared connection module 1 for a mobile communication terminal according to the present invention;

도 5는 본 발명에 따른 이동통신단말기용 RF공유 연결모듈(1)을 이용한 RF 통신방법을 도시한 순서도.5 is a flowchart illustrating an RF communication method using the RF sharing connection module 1 for a mobile communication terminal according to the present invention.

※ 도면 부호의 간단한 설명 ※※ Brief description of reference numerals ※

10 : RF 컨트롤부 20 : USIM 카드부10: RF control unit 20: USIM card unit

30 : NFC 통신부 40 : RF 안테나30: NFC communication unit 40: RF antenna

Claims (4)

이동통신단말기 내부에 USIM 카드부와 NFC 통신부가 함께 구성되어 RF 통신을 하는 RF공유 연결모듈(1)에 있어서,In the RF shared connection module (1) is configured with the USIM card unit and the NFC communication unit in the mobile communication terminal for RF communication, 상기 RF공유 연결모듈(1)는 이동 통신 단말기 본체에 구성된 이동통신 베이스밴드 칩과 연결되어, 이동통신단말기 본체가 부팅이 되고, 이동통신 베이스밴드 칩이 USIM 카드를 체크하여 나온 ATR(Answer to Reset) 값이 들어오면, 그 TR(Answer to Reset) 값에 의해 RF 안테나가 NFC 통신부 또는 USIM 카드부로 선택되어 RF 통신을 하도록 제어하는 RF 컨트롤부(10)와,The RF sharing connection module 1 is connected to a mobile communication baseband chip configured in the mobile communication terminal main body, the mobile communication terminal main body is booted, and the mobile communication baseband chip checks the USIM card to reveal an ATR (Answer to Reset). ), The RF control unit 10 controls the RF antenna to be selected as the NFC communication unit or the USIM card unit according to the TR (Answer to Reset) value and performs RF communication. 외부와 13.56㎒ 대역에서 RFID 리더 기능과 함께 태그 기능을 동시에 수행할 수 있도록 근거리 데이터 통신을 하면서, RF 컨트롤부의 제어신호가 입력되면 그 제어신호에 따라 USIM 카드가 SWP 또는 S2C 통신이 되도록 통신프로토콜을 보내고, RF 안테나와 연결되어 RF 통신을 하는 NFC 통신부(20)와,While performing short-range data communication to simultaneously perform tag function together with RFID reader function in the external and 13.56MHz band, when the control signal of the RF control unit is input, the communication protocol is established so that the USIM card is SWP or S2C communication according to the control signal. NFC communication unit 20 for transmitting and communicating with the RF antenna, RF, 이동 통신 단말기 본체에 구성된 이동통신 베이스밴드 칩과 연결되어, 사용자 인증, 전자상거래 및 글로벌 로밍서비스 통신을 하면서, RF 컨트롤부의 제어신호가 입력되면, 그 제어신호에 따라 NFC 통신부로부터 SWP 또는 S2C 통신이 차단되고, RF 안테나와 연결되어 RF 통신을 하는 USIM 카드부(30)와,Connected to the mobile communication baseband chip configured in the main body of the mobile communication terminal, the user authentication, e-commerce and global roaming service communication, when the control signal of the RF control unit is input, SWP or S2C communication from the NFC communication unit according to the control signal Blocked and connected to the RF antenna USIM card unit 30 and the RF communication, 상기 RF 컨트롤부의 제어에 따라 NFC 통신부가 비접촉식 근거리 통신 방식에 따라 RF 통신을 하거나 또는 RF 컨트롤부의 제어에 따라 USIM 카드부가 RF 통신을 하는 RF 안테나(40)가 포함되어 PCB 기판으로 모듈화되어 구성되는 것을 특징으로 하는 이동통신단말기용 RF공유 연결모듈.The NFC communication unit under the control of the RF control unit RF communication according to the non-contact short-range communication method, or the USIM card unit RF antenna 40 to the RF communication under the control of the RF control unit is configured to be modularized into a PCB substrate RF sharing connection module for a mobile communication terminal. 제1항에 있어서, USIM 카드부(30)는 USIM 소켓 C4단자와 C8단자에 USB단자와 RF 안테나 단자를 같은 라인으로 연결하여 USB 데이터 통신과 RF 통신이 되도록 구성되는 것을 특징으로 하는 이동통신단말기용 RF공유 연결모듈.According to claim 1, USIM card unit 30 is a mobile communication terminal characterized in that the USB data communication and RF communication by connecting the USB terminal and the RF antenna terminal to the USIM socket C4 terminal and C8 terminal in the same line. RF sharing connection module. 제2항에 있어서, USIM 카드부(30)는 USIM 소켓 C4단자와 C8단자 일측에 RF 보정회로가 구성되는 것을 특징으로 하는 이동통신 단말기용 RF공유 연결모듈.According to claim 2, USIM card unit 30 RF sharing connection module for a mobile communication terminal, characterized in that the RF correction circuit is configured on one side of the USIM socket C4 terminal and C8 terminal. 이동통신단말기의 전원이 부팅되면 최초에 이동통신단말의 베이스밴드 칩이 USIM 카드부의 ATR(Answer to Reset) 값으로 체크를 하는 단계(S100~S110)와,When the power of the mobile communication terminal is booted, the baseband chip of the mobile communication terminal first checks the ATR (Answer to Reset) value of the USIM card unit (S100 to S110), 그 ATR 값이 SWP 또는 S2C가 지원이 되는 값이 올라오면, RF 컨트롤부에 RF안테나를 NFC로 연결시키는 단계(S120)와,When the value of the ATR value is SWP or S2C is supported, connecting the RF antenna to the RF control unit by NFC (S120), RF 컨트롤부의 제어를 통해 RF 안테나가 NFC 통신부와 연결되어 RF 통신을 하는 단계(S130~S140)와,The RF antenna is connected to the NFC communication unit through the control of the RF control unit for the RF communication (S130 ~ S140), 그 ATR 값이 SWP 또는 S2C가 지원이 안되는 ATR 값이 올라오면 RF 컨트롤부에 RF 안테나를 USIM 카드에 연결시키는 단계(S150)와,If the ATR value is not supported SWP or S2C ATR value rises to connect the RF antenna to the USIM card to the RF control unit (S150), RF 컨트롤부의 제어를 통해 RF 안테나가 USIM 카드부와 연결되어, USIM 카드부에서 RF 통신을 하는 단계(S160~S180)로 이루어지는 것을 특징으로 하는 이동통신 단말기용 RF공유 연결모듈을 이용한 RF 통신방법.RF communication method using the RF shared connection module for a mobile communication terminal, characterized in that the RF antenna is connected to the USIM card unit through the control of the RF control unit, and the RF communication in the USIM card unit (S160 ~ S180).
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