KR20020023299A - Apparatus for interfacing mobile telecommunication terminal - Google Patents

Apparatus for interfacing mobile telecommunication terminal Download PDF

Info

Publication number
KR20020023299A
KR20020023299A KR1020020002019A KR20020002019A KR20020023299A KR 20020023299 A KR20020023299 A KR 20020023299A KR 1020020002019 A KR1020020002019 A KR 1020020002019A KR 20020002019 A KR20020002019 A KR 20020002019A KR 20020023299 A KR20020023299 A KR 20020023299A
Authority
KR
South Korea
Prior art keywords
signal
gps
band
cellular
antenna
Prior art date
Application number
KR1020020002019A
Other languages
Korean (ko)
Inventor
김동원
김성겸
Original Assignee
김호영
기가텔레콤 (주)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 김호영, 기가텔레콤 (주) filed Critical 김호영
Priority to KR1020020002019A priority Critical patent/KR20020023299A/en
Publication of KR20020023299A publication Critical patent/KR20020023299A/en

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/005Details 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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
    • H04B1/0053Details 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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band
    • H04B1/0057Details 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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band using diplexing or multiplexing filters for selecting the desired band
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M2250/00Details of telephonic subscriber devices
    • H04M2250/10Details of telephonic subscriber devices including a GPS signal receiver

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transceivers (AREA)

Abstract

PURPOSE: An interface device for a mobile communication terminal is provided to heighten a current level of the mobile communication terminal including a GPS(Global Positioning System) and enhance an antenna gain by performing an interface between a tri-band antenna and an RF(Radio Frequency) terminal. CONSTITUTION: An antenna(ANT3) receives a USPCS signal, a cellular/AMPS signal, and a GPS signal. A switch(100) switches the USPCS signal, the cellular/AMPS signal, and the GPS signal received in the antenna(ANT3). A diplexer(110) divides the USPCS signal, the cellular/AMPS signal, and the GPS signal switched in the switch(100) into a certain band to connect to each path.

Description

이동통신단말기의 인터페이스 장치{Apparatus for interfacing mobile telecommunication terminal}Interface device of mobile communication terminal {Apparatus for interfacing mobile telecommunication terminal}

본 발명은 이동통신단말기의 인터페이스 장치에 관한 것으로, 보다 상세하게는 위치측정시스템(GPS : Global Positioning System)이 내장된 트라이밴드, 쿼드모드 방식의 이동통신단말기에서 안테나와 알에프(RF : Radio Frequency)단과의 인터페이스를 수행하는 이동통신단말기의 인터페이스 장치에 관한 것이다.The present invention relates to an interface device of a mobile communication terminal, and more particularly, to an antenna and a radio frequency (RF) in a tri-band, quad mode mobile communication terminal having a global positioning system (GPS). An interface device of a mobile communication terminal for performing an interface with a terminal.

최근, 위치측정시스템(GPS)에 관련된 서비스가 이동통신단말기에 적용되고 있는 바, 도 1은 종래기술에 따른 이동통신단말기의 트라이밴드, 쿼드모드 시스템 방식에 사용되고 있는 장치의 구성도이며, 이 방식은 셀룰러/USPCS 밴드용 안테나(ANT1)와 위치측정시스템(GPS) 밴드용 안테나(ANT2)를 따로 사용하고 있다. 상술한 바와 같은 이동통신단말기의 트라이밴드, 쿼드모드 시스템에서 위치측정시스템(GPS)용 안테나(ANT2)로 내장형을 많이 사용하고 있는데 이는 이동통신단말기의 크기가 커지고 안테나 이득을 내기 힘들며, 또한 이동통신단말기의 가격 상승의 요인으로 작용하는 문제점이 발생한다.Recently, a service related to a positioning system (GPS) has been applied to a mobile communication terminal. FIG. 1 is a block diagram of a device used in a tri-band and quad mode system of a mobile communication terminal according to the prior art. Uses separate antennas for cellular / USPCS bands (ANT1) and antennas for positioning system (GPS) bands (ANT2). In the tri-band and quad mode systems of the mobile communication terminal as described above, the internal antenna is used as an antenna for antenna positioning system (GPS). This is because the size of the mobile communication terminal is large and the antenna gain is difficult to obtain. There is a problem that causes a price increase of the terminal.

따라서 본 발명은 이와 같은 문제점을 해결하기 위한 것으로서, 본 발명은 위치측정시스템(GPS)용 내장 안테나를 사용하지 않고 위치측정시스템(GPS) 밴드를 포함할 수 있는 트라이밴드(셀룰러/GPS/USPCS) 안테나(ANT3, 4)를 사용하여 각 모드의 알에프(RF) 단과 인터페이스 할 수 있는 이동통신단말기의 인터페이스 장치를 제공하는데 그 목적이 있다.Therefore, the present invention is to solve such a problem, the present invention is triband (cellular / GPS / USPCS) that can include a positioning system (GPS) band without using a built-in antenna for positioning system (GPS) It is an object of the present invention to provide an interface device of a mobile communication terminal capable of interfacing with RF (RF) terminals in each mode by using the antennas ANT3 and 4.

도 1은 종래기술에 따른 이동통신단말기의 트라이밴드 방식에 의한 장치의 구성도,1 is a block diagram of an apparatus by a tri-band method of a mobile communication terminal according to the prior art,

도 2는 본 발명에 따른 이동통신단말기의 인터페이스 장치의 일실시예,2 is an embodiment of an interface device of a mobile communication terminal according to the present invention;

도 3은 본 발명에 따른 이동통신단말기의 인터페이스 장치의 일실시예.Figure 3 is an embodiment of an interface device of a mobile communication terminal according to the present invention.

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for main parts of the drawings>

ANT1 : 안테나(Cellular/USPCS Band 용)ANT1: Antenna (for Cellular / USPCS Band)

ANT2 : 안테나(GPS Band 용)ANT2: Antenna (for GPS Band)

ANT3. ANT4 : 안테나(Cellular/GPS/USPCS Band 용)ANT3. ANT4: Antenna (for Cellular / GPS / USPCS Band)

100, 200 : 스위칭수단100, 200: switching means

110 : 다이플렉서(Cellular/GPS 용)110: Diplexer (for Cellular / GPS)

220 : 다이플렉서(Cellular/USPCS 용)220: diplexer (for Cellular / USPCS)

10 : 다이플렉서(Cellular/USPCS 용)10: Diplexer (for Cellular / USPCS)

이와 같은 목적을 달성하기 위한 본 발명의 특징은, 소정신호를 수신하는 안테나; 상기 안테나에서 수신되는 상기 소정신호를 스위칭하는 스위칭수단; 및 상기 스위칭수단에서 스위치된 상기 소정신호를 소정밴드로 분리하여 각각의 경로와 연결시키는 다이플렉서를 포함하는데 있다.Features of the present invention for achieving the above object, the antenna for receiving a predetermined signal; Switching means for switching the predetermined signal received at the antenna; And a diplexer that separates the predetermined signal switched by the switching means into a predetermined band and connects each path.

바람직하게, 상기 소정신호는 USPCS 신호, 셀룰러/AMPS 신호, 위치측정시스템(GPS) 신호임을 특징으로 한다.Preferably, the predetermined signal is a USPCS signal, a cellular / AMPS signal, a GPS signal.

바람직하게, 상기 안테나는 트라이 밴드용의 안테나임을 특징으로 한다.Preferably, the antenna is characterized in that the tri-band antenna.

바람직하게, 상기 다이플렉서는 셀룰러/GPS 밴드용 다이플렉서임을 특징으로 한다.Preferably, the diplexer is a diplexer for a cellular / GPS band.

바람직하게, 상기 소정신호는 셀룰러 밴드와 GPS 밴드로 이격되어 분리되는 신호임을 특징으로 한다.Preferably, the predetermined signal is characterized in that the signal is separated into a cellular band and a GPS band separated.

바람직하게, 상기 소정밴드는 셀룰러 밴드, GPS 밴드임을 특징으로 한다.Preferably, the predetermined band is characterized in that the cellular band, GPS band.

이하, 본 발명의 바람직한 실시 예에 대하여 첨부 도면을 참조하여 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 2 및 도 3은 본 발명에 따른 이동통신단말기의 인터페이스 장치의 일실시예이다.2 and 3 is an embodiment of an interface device of a mobile communication terminal according to the present invention.

도 2 및 도 3에 있어서, 본 발명은 안테나(ANT3, 4), 스위칭수단(100, 200), 다이플렉서(110, 210)로 구성된다.2 and 3, the present invention is composed of antennas ANT3 and 4, switching means 100 and 200, and diplexers 110 and 210. As shown in FIG.

본 발명에서 제안하는 방식에 대해 도 2는 트라이밴드 안테나(ANT3)에서 수신하는 신호에 따라 USPCS 신호를 수신 할 경우 스위칭을 통해 USPCS 경로와 연결을 해 주고, 셀룰라 또는 GPS 신호를 수신할 경우 셀룰라/GPS용 다이플렉서(110)로연결을 해 준다. 또한 이 두 신호들은 다이플렉서(110)를 통해 셀룰러밴드와 GPS밴드로 분리되어 각각 연결된다.For the scheme proposed by the present invention, FIG. 2 is connected to the USPCS path through switching when receiving a USPCS signal according to a signal received by the triband antenna ANT3, and when receiving a cellular or GPS signal. Connects to the GPS diplexer 110. In addition, the two signals are separated into cellular bands and GPS bands through the diplexer 110, respectively.

도 3은 도 2에서 제안한 방식에서 셀룰러/GPS용 다이플렉서(110) 대신 셀룰러/USPCS 밴드용 다이플렉서(210)를 사용한 것이다. 이것도 도 2의 방식과 같이 드라이밴드용 안테나(ANT4)에 수신되는 신호에 따라 셀룰러 또는 USPCS 신호가 수신되었을 경우 스위칭을 통해 셀룰러/USPCS용 다이플렉서(210)로 연결을 하고, 이 신호들은 다이플렉서(210)를 통해 각각의 경로별로 분리되어 연결된다. 또한 위치측정시스템(GPS) 신호가 수신되었을 경우 스위칭을 통해 직접 위치측정시스템(GPS) 경로로 연결된다. 이때, 각각의 경로는 GPS 경로, 셀룰러/AMPS 경로, USPCS 경로 등이 있다. 한편, 트라이밴드는 셀룰러 밴드(수신 : 869∼894MHz, 송신 : 824∼849MHz, AMPS밴드와 동일), GPS밴드(수신 : 1574.42∼1576.42MHz), USPCS밴드(수신 : 1930∼1990MHz, 송신 : 1850∼1910MHz)로 이루어지며, 쿼드모드는 셀룰러/AMPS/GPS/USPCS로 구성된다.FIG. 3 uses the diplexer 210 for the cellular / USPCS band instead of the diplexer 110 for the cellular / GPS in the scheme proposed in FIG. 2. This also connects to the cellular / USPCS diplexer 210 through switching when a cellular or USPCS signal is received according to the signal received by the dryband antenna ANT4 as in the method of FIG. Through the flexure 210, each path is separated and connected. In addition, when a GPS signal is received, it is directly connected to a GPS path through switching. In this case, each path may be a GPS path, a cellular / AMPS path, a USPCS path, or the like. On the other hand, the tri-band is a cellular band (receive: 869 to 894 MHz, transmit: 824 to 849 MHz, same as AMPS band), GPS band (receive: 1574.42 to 156.42 MHz), USPCS band (receive: 1930 to 1990 MHz, transmit: 1850 to 1910MHz) and quad mode consists of cellular / AMPS / GPS / USPCS.

본 발명에서 제안한 구성은 두 가지 측면을 고려한 것이다. 도 2는 각 모드별 감도(Sensitivity)저하를 최소한 것이고, 도 3은 모드별 스위칭 부하(Load)를 줄이기 위한 것이다. 보편적으로 USPCS용 듀플렉서와 다이플렉서는 셀룰러용에 비해 삽입손실(Insertion loss)이 더 많다. 따라서 도 2와 같이 스위치를 통해 직접 USPCS 경로로 연결을 해 줄 경우 도 3과 같이 다이플렉서의 삽입손실에 따른 감도저하를 최소화 할 수 있는 이점이 있다.The configuration proposed in the present invention considers two aspects. FIG. 2 minimizes the degradation of each mode, and FIG. 3 is to reduce the switching load of each mode. Typically, duplexers and diplexers for USPCS have more insertion loss than cellular. Therefore, when the direct connection to the USPCS path through the switch as shown in Figure 2 has the advantage of minimizing the sensitivity degradation due to the insertion loss of the diplexer as shown in FIG.

현재 위치측정시스템(GPS)은 사용자가 위험한 상황에 처했을 경우 자신의 위치를 알리기 위해 사용하는 것으로 메뉴얼상으로 위치측정시스템(GPS) 경로를 선택했을 경우에만 동작하도록 되어있다. 따라서 도 2와 같이 시스템을 구현하게 될 경우 셀룰러, USPCS 모드 간 또는 AMPS, USPCS 모드 간 핸드오프 시 계속해서 스위칭을 해 주어야 하지만 도 3과 같이 구현을 하게 되면 셀룰러/AMPS/USPCS 모드 간 스위칭이 필요가 없어지므로 스위칭 부하를 줄일 수 있는 이점이 있다.The current GPS system is used to inform the user of his / her location in case of a dangerous situation. It only works when the GPS system path is selected in the manual. Therefore, when the system is implemented as shown in FIG. 2, switching between cellular and USPCS modes or between AMPS and USPCS modes must be continuously performed. However, when implemented as shown in FIG. 3, switching between cellular / AMPS / USPCS modes is required. There is an advantage to reduce the switching load since the

이와 같이, 본 발명의 상세한 설명에서는 구체적인 실시 예에 관해 설명하였으나, 본 발명의 범주에서 벗어나지 않는 한도 내에서 여러 가지 변형이 가능함은 물론이다. 그러므로, 본 발명의 범위는 설명된 실시 예에 국한되어 정해져서는 안 되며 후술하는 특허청구범위 뿐만 아니라 이 특허청구범위와 균등한 것들에 의해 정해져야 한다.As described above, in the detailed description of the present invention, specific embodiments have been described. However, various modifications may be made without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the claims below but also by the equivalents of the claims.

결국, 본 발명에 의한 이동통신단말기의 인터페이스 장치에 따르면 다음과 같은 이점이 발생한다.As a result, according to the interface device of the mobile communication terminal according to the present invention the following advantages occur.

즉, 트라이밴드용 안테나와 알에프(RF) 단과의 인터페이스를 수행함으로써 위치측정시스템(GPS)을 포함한 이동통신단말기를 현재의 단말기 수준의 크기로 할 수 있으며, 안테나 이득을 내장형 안테나에 비해 크게 높일 수 있다. 또한, 이동통신단말기의 제조 원가를 절감할 수 있다.In other words, by performing the interface between the tri-band antenna and RF (RF) terminal, the mobile communication terminal including the GPS system can be as large as the current terminal, and the antenna gain can be greatly increased compared to the built-in antenna. have. In addition, the manufacturing cost of the mobile communication terminal can be reduced.

Claims (6)

소정신호를 수신하는 안테나;An antenna for receiving a predetermined signal; 상기 안테나에서 수신되는 상기 소정신호를 스위칭하는 스위칭수단; 및Switching means for switching the predetermined signal received at the antenna; And 상기 스위칭수단에서 스위치된 상기 소정신호를 소정밴드로 분리하여 각각의 경로와 연결시키는 다이플렉서를 포함하는 것을 특징으로 하는 이동통신단말기의 인터페이스 장치.And a diplexer which separates the predetermined signal switched by the switching means into a predetermined band and connects each path. 제 1 항에 있어서, 상기 소정신호는The method of claim 1, wherein the predetermined signal is USPCS 신호, 셀룰러/AMPS 신호, 위치측정시스템(GPS) 신호임을 특징으로 하는 이동통신단말기의 인터페이스 장치.Interface device of a mobile communication terminal, characterized in that the USPCS signal, cellular / AMPS signal, position measurement system (GPS) signal. 제 1 항에 있어서, 상기 안테나는The method of claim 1, wherein the antenna 트라이밴드용의 안테나임을 특징으로 하는 이동통신단말기의 인터페이스 장치.An interface device of a mobile communication terminal, characterized in that the tri-band antenna. 제 1 항에 있어서, 상기 다이플렉서는The method of claim 1, wherein the diplexer 셀룰러/GPS 밴드용 다이플렉서임을 특징으로 하는 이동통신단말기의 인터페이스 장치.Interface device of a mobile communication terminal, characterized in that the diplexer for cellular / GPS band. 제 1 항에 있어서, 상기 소정신호는The method of claim 1, wherein the predetermined signal is 셀룰러 밴드와 GPS 밴드로 이격되어 분리되는 신호임을 특징으로 하는 이동통신단말기의 인터페이스 장치.Interface device of a mobile communication terminal, characterized in that the signal is separated into a cellular band and a GPS band separated. 제 1 항에 있어서, 상기 소정밴드는The method of claim 1, wherein the predetermined band 셀룰러 밴드, GPS 밴드임을 특징으로 하는 이동통신단말기의 인터페이스 장치.An interface device of a mobile communication terminal, characterized in that the cellular band, GPS band.
KR1020020002019A 2002-01-14 2002-01-14 Apparatus for interfacing mobile telecommunication terminal KR20020023299A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020020002019A KR20020023299A (en) 2002-01-14 2002-01-14 Apparatus for interfacing mobile telecommunication terminal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020020002019A KR20020023299A (en) 2002-01-14 2002-01-14 Apparatus for interfacing mobile telecommunication terminal

Publications (1)

Publication Number Publication Date
KR20020023299A true KR20020023299A (en) 2002-03-28

Family

ID=19718444

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020020002019A KR20020023299A (en) 2002-01-14 2002-01-14 Apparatus for interfacing mobile telecommunication terminal

Country Status (1)

Country Link
KR (1) KR20020023299A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100690790B1 (en) * 2005-03-05 2007-03-09 엘지전자 주식회사 Apparatus for switching gsm mode and cdma mode
KR100716796B1 (en) * 2005-10-26 2007-05-14 전자부품연구원 Triplexer
KR20070068103A (en) * 2005-12-26 2007-06-29 엘지이노텍 주식회사 Multi-band switch module

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980044339A (en) * 1996-12-06 1998-09-05 김광호 Wireless signal processing device for triple mobile phone
WO1998058511A1 (en) * 1997-06-17 1998-12-23 Telefonaktiebolaget Lm Ericsson Triple mode cellular phone
KR20010056143A (en) * 1999-12-14 2001-07-04 송문섭 Communication mode selection apparatus for the mobile station operating in the tri-mode and selection method thereof
KR20010079010A (en) * 2001-06-02 2001-08-22 안형근 Apparatus for transmitting and receiving triple band RF for the GSM handset
JP2001244844A (en) * 2000-02-28 2001-09-07 Tdk Corp Front-end module for triple-band portable telephone

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980044339A (en) * 1996-12-06 1998-09-05 김광호 Wireless signal processing device for triple mobile phone
WO1998058511A1 (en) * 1997-06-17 1998-12-23 Telefonaktiebolaget Lm Ericsson Triple mode cellular phone
KR20010056143A (en) * 1999-12-14 2001-07-04 송문섭 Communication mode selection apparatus for the mobile station operating in the tri-mode and selection method thereof
JP2001244844A (en) * 2000-02-28 2001-09-07 Tdk Corp Front-end module for triple-band portable telephone
KR20010079010A (en) * 2001-06-02 2001-08-22 안형근 Apparatus for transmitting and receiving triple band RF for the GSM handset

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100690790B1 (en) * 2005-03-05 2007-03-09 엘지전자 주식회사 Apparatus for switching gsm mode and cdma mode
KR100716796B1 (en) * 2005-10-26 2007-05-14 전자부품연구원 Triplexer
KR20070068103A (en) * 2005-12-26 2007-06-29 엘지이노텍 주식회사 Multi-band switch module

Similar Documents

Publication Publication Date Title
US6826391B2 (en) Transmission and reception antenna system for space diversity reception
KR100451188B1 (en) Receive apparatus of mobile communication terminal
KR101060874B1 (en) Sending and receiving circuit and sending and receiving method
US7398060B2 (en) Method facilitating inter-mode handoff
US7542727B2 (en) Method for receiving a signal on a single multi-band antenna
US6816711B2 (en) GPS equipped mobile phone with single shared antenna
CN102185623B (en) Mobile terminal and multi-antenna realizing method thereof
EP1551080A1 (en) Antenna device
WO2017113693A1 (en) Antenna multiplexing apparatus and mobile terminal
US6510310B1 (en) Dual mode phone architecture utilizing a single transmit-receive switch
US7629862B2 (en) Composite duplexer
US20060234658A1 (en) Mobile communication terminal supporting simultaneous GPS
KR101534851B1 (en) Apparatus and Method for controlling receiving signal of mobile communication terminal
US7366479B2 (en) Mobile communication terminal having an external antenna
KR20020023299A (en) Apparatus for interfacing mobile telecommunication terminal
KR20060112722A (en) Circuit for matching antenna of multi-band terminal
KR20060096693A (en) A multi-band antenna
JP2003188759A (en) Communication device and switching device
KR200291356Y1 (en) Multiband switching apparatus
KR20060032365A (en) Mobile communication terminal with dual mode antena path setting device
CN110971246A (en) Radio frequency circuit, control method thereof and mobile terminal
KR100609588B1 (en) Triple band type mobile terminal of having a diversity function
GB2428917A (en) Antenna diversity arrangement for an rf transceiver
KR20040076683A (en) Triple band front end module
KR100737147B1 (en) Communication apparatus of multi-band and front end module

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application