KR20000073962A - Multi-portable repeater of mobile communication system - Google Patents

Multi-portable repeater of mobile communication system Download PDF

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Publication number
KR20000073962A
KR20000073962A KR1019990017583A KR19990017583A KR20000073962A KR 20000073962 A KR20000073962 A KR 20000073962A KR 1019990017583 A KR1019990017583 A KR 1019990017583A KR 19990017583 A KR19990017583 A KR 19990017583A KR 20000073962 A KR20000073962 A KR 20000073962A
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KR
South Korea
Prior art keywords
signals
repeater
communication system
mobile communication
amplified
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KR1019990017583A
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Korean (ko)
Inventor
이문규
홍석준
허철
Original Assignee
김영환
현대전자산업 주식회사
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Priority to KR1019990017583A priority Critical patent/KR20000073962A/en
Publication of KR20000073962A publication Critical patent/KR20000073962A/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/155—Ground-based stations
    • H04B7/15507—Relay station based processing for cell extension or control of coverage area
    • H04B7/15514—Relay station based processing for cell extension or control of coverage area for shadowing compensation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/155—Ground-based stations
    • H04B7/15528—Control of operation parameters of a relay station to exploit the physical medium
    • H04B7/15535—Control of relay amplifier gain
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/26—Cell enhancers or enhancement, e.g. for tunnels, building shadow

Abstract

PURPOSE: A multi portable repeater of a mobile communication system is provided to miniaturize the repeater by having duplexer filters, so that the repeater be installed in a small-scale place and shadow areas of crowded users can be covered with a base station and the repeater. CONSTITUTION: First/n-th duplexer filters(1-1/1-n) pass signals only in a desiring frequency band among signals transceived through an antenna, and transceive the passed signals through the antenna. A low noise amplifier(LNA,2) performs low noise amplification for the signals in the frequency band transceived by being passed the first/n-th duplexer filters(1-1/1-n). A first power amplifier(PA,3-1) performs power amplification for the low noise-amplified signals to a predetermined level. A second PA(3-2) performs power amplification for the signals amplified in the first PA(3-1) to a predetermined level, and outputs the power-amplified signals to the first/n-th duplexer filters(1-1/1-n).

Description

이동통신 시스템의 멀티 휴대용 중계기 {Multi-portable repeater of mobile communication system}Multi-portable repeater of mobile communication system {Multi-portable repeater of mobile communication system}

본 발명은 디지털 셀룰라 시스템(Digital Cellular System ; 이하, 'DCS'라 칭함) 또는 개인 휴대통신 시스템(Personal Communication System ; 이하, 'PCS'라 칭함) 등의 이동통신 시스템에 있어서, 한 경로(Path)상에서 여러 주파수 대역의 듀플렉서 필터(Duplexer Filter)를 이용하여 원하는 송수신 주파수만을 걸러 저잡음 증폭기(Low Noise Amplifier ; 이하, 'LNA'라 칭함)와 전력 증폭기(Power Amplifier ; 이하, 'PA'라 칭함)로 증폭함으로써 800MHz∼2GHz까지의 DCS 및 PCS 주파수 대역 모두를 수용할 수 있도록 한 이동통신 시스템의 멀티 휴대용 중계기에 관한 것이다.The present invention relates to a mobile communication system such as a digital cellular system (hereinafter referred to as "DCS") or a personal communication system (hereinafter referred to as "PCS"). A low noise amplifier (hereinafter referred to as "LNA") and a power amplifier (hereinafter referred to as "PA") to filter only a desired transmit / receive frequency by using a duplexer filter of various frequency bands The present invention relates to a multi-portable repeater of a mobile communication system capable of amplifying to accommodate both DCS and PCS frequency bands from 800 MHz to 2 GHz.

일반적으로 DCS, PCS 등의 이동통신 시스템에는 기지국에서 관장하기 어려운 서비스 지역에 대해 신호를 송수신하여 이동국과 기지국을 중계시켜 주기 위한 중계기가 구비되어 있다.In general, a mobile communication system such as DCS, PCS, etc. is provided with a repeater for relaying a mobile station and a base station by transmitting and receiving a signal in a service area that is difficult to be managed by the base station.

이러한 종래의 중계기는 가격이 고가이면서 크기가 커 개인이 휴대하기가 불편하였을 뿐만 아니라 작은 공간에서 설치할 수 없었다.Such a conventional repeater is not only inconvenient to carry by individuals because of its high price and large size, but also cannot be installed in a small space.

또한, 종래의 기지국 및 중계기 자체로서는 사용자가 밀집된 지역내 통화권을 모두 커버(Cover)하기가 힘들었다.In addition, in the conventional base station and the repeater itself, it is difficult for a user to cover all of the coverage areas in a dense area.

즉, 지형이나 장애물에 의한 음영 지역을 해소할 수 없었다.In other words, the shadow area due to the terrain or obstacles could not be solved.

본 발명은 상기와 같은 문제점을 해결하기 위해 안출한 것으로서, 그 목적은 DCS 또는 PCS 등의 이동통신 시스템에 있어서, 한 경로상에서 여러 주파수 대역의 듀플렉서 필터를 이용하여 원하는 송수신 주파수만을 걸러 LNA와 PA로 증폭함으로써 DCS 및 PCS 주파수 대역의 사용자 통화율을 증대시킬 수 있도록 한 이동통신 시스템의 멀티 휴대용 중계기를 제공하는 데에 있다.The present invention has been made to solve the above problems, the object of the present invention is a mobile communication system such as DCS or PCS, using a duplexer filter of several frequency bands on one path to filter only the desired transmission and reception frequency to the LNA and PA It is to provide a multi-portable repeater of a mobile communication system by amplifying to increase the user call rate of the DCS and PCS frequency bands.

도 1은 본 발명에 의한 이동통신 시스템의 멀티 휴대용 중계기의 블록 구성도.1 is a block diagram of a multi-portable repeater of a mobile communication system according to the present invention.

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

1-1∼1-n : 제1∼제n 듀플렉서 필터1-1 to 1-n: 1st to n-th duplexer filter

2 : LNA2: LNA

3-1, 3-2 : 제1, 제2 PA3-1, 3-2: first and second PAs

Ant : 안테나Ant: Antenna

이러한 목적을 달성하기 위한 본 발명의 이동통신 시스템의 멀티 휴대용 중계기는, 송신과 수신을 겸용하는 여러 주파수 대역의 듀플렉서 필터를 여러단 추가 구성하여 송수신되는 신호의 주파수중 원하는 주파수 대역은 통과시키고, 원하지 않는 주파수 대역은 차단시켜 줌으로써 멀티 주파수 대역의 휴대용 중계기를 구현하도록 함을 특징으로 한다.In order to achieve the above object, the multi-portable repeater of the mobile communication system of the present invention additionally configures a duplexer filter of multiple frequency bands for both transmission and reception to pass a desired frequency band among the frequencies of the transmitted and received signals. The non-frequency band is blocked to implement a multi-frequency portable repeater.

이하, 첨부된 도면을 참고하여 본 발명에 의한 이동통신 시스템의 멀티 휴대용 중계기의 구성 및 동작을 상세히 설명한다.Hereinafter, with reference to the accompanying drawings will be described in detail the configuration and operation of the multi-portable repeater of the mobile communication system according to the present invention.

도 1은 본 발명에 의한 이동통신 시스템의 멀티 휴대용 중계기의 블록 구성도로서, 송신과 수신을 겸용으로 동작하여 안테나(Ant)를 통해 송수신되는 신호중 원하는 주파수 대역만을 통과시켜 다시 안테나(Ant)를 통해 송수신하는 다수의 제1∼제n 듀플렉서 필터(1-1,1-n)와, 상기 제1∼제n 듀플렉서 필터(1-1,1-n)를 통과해 송수신되는 주파수 대역의 신호를 저잡음 증폭하는 LNA(2)와, 상기 LNA(2)에서 저잡음 증폭된 신호를 일차적으로 일정 레벨만큼 전력 증폭하는 제1 PA(3-1)와, 상기 제1 PA(3-1)에서 증폭된 신호를 다시한번 일정 레벨만큼 전력 증폭시켜 상기 다수의 제1∼제n 듀플렉서 필터(1-1,1-n)로 출력하는 제2 PA(3-2)로 구성된다.FIG. 1 is a block diagram of a multi-portable repeater of a mobile communication system according to the present invention, which operates by transmitting and receiving in combination to pass only a desired frequency band of signals transmitted and received through an antenna, and then again through an antenna. Low noise of a frequency band signal transmitted and received through a plurality of first to n-th duplexer filters (1-1,1-n) and the first to n-th duplexer filters (1-1,1-n) to transmit and receive LNA 2 for amplifying, a first PA 3-1 for power amplifying a low noise amplified signal in the LNA 2 by a predetermined level, and a signal amplified in the first PA 3-1. Is a second PA (3-2) for power amplification by a predetermined level and output to the plurality of first to n-th duplexer filter (1-1,1-n).

상기와 같이 구성된 본 발명에 의한 이동통신 시스템의 멀티 휴대용 중계기의 동작을 설명하면 다음과 같다.Referring to the operation of the multi-portable repeater of the mobile communication system according to the present invention configured as described above are as follows.

먼저, 송신과 수신을 겸용하여 동작하는 제1∼제n 듀플렉서 필터(1-1,1-n)에서는 안테나(Ant)를 통해 송수신되는 신호중 원하는 주파수 대역은 통과시켜 LNA(2)로 출력하고, 원하지 않는 주파수 대역은 차단하여 상기 LNA(2)로 출력되지 않도록 한다.First, in the first to n-th duplexer filters 1-1 and 1-n which operate in combination with transmission and reception, a desired frequency band among the signals transmitted and received through the antenna Ant is passed through and outputted to the LNA 2, Unwanted frequency bands are cut off so that they are not output to the LNA 2.

이어, 상기 LNA(2)에서는 상기 제1∼제n 듀플렉서 필터(1-1,1-n)를 통과하여 송수신되는 주파수 대역의 신호를 입력하여 잡음은 최대한 줄이고 순수 신호만을 증폭시키는 저잡음 증폭동작을 수행하여 제1 PA(3-1)로 출력한다.Subsequently, the LNA 2 inputs a signal in a frequency band transmitted and received through the first to n-th duplexer filters 1-1 and 1-n to reduce noise as much as possible and to amplify only a pure signal. The output is performed to the first PA 3-1.

그러면, 제1 PA(3-1)에서는 상기 LNA(2)에서 저잡음 증폭된 신호를 일차적으로 일정 레벨만큼 전력 증폭하여 제2 PA(3-2)로 출력하고, 마지막으로 제2 PA(3-2)에서는 상기 제1 PA(3-1)에서 증폭된 신호를 다시한번 일정 레벨만큼 전력 증폭시켜 상기 다수의 제1∼제n 듀플렉서 필터(1-1,1-n)로 출력하도록 한다.Then, the first PA 3-1 first amplifies the low noise amplified signal by the LNA 2 by a predetermined level and outputs the power to the second PA 3-2, and finally, the second PA 3-3. In 2), the signal amplified by the first PA 3-1 is once again amplified by a predetermined level and output to the plurality of first to n-th duplexer filters 1-1 and 1-n.

상기와 같이 본 발명은 여러 주파수 대역의 듀플렉서 필터를 이용하여 원하는 송수신 주파수만을 걸러 LNA와 PA로 증폭하여 줌으로써 DCS 및 PCS 주파수 대역의 사용자 통화율을 증대시킬 수 있다.As described above, the present invention can increase user call rates in DCS and PCS frequency bands by amplifying LNAs and PAs by filtering only desired transmission / reception frequencies using duplexer filters of various frequency bands.

또한, 상기와 같이 듀플렉서 필터를 여러단 추가하여 구성함으로써 멀티 주파수 대역의 휴대용 중계기를 구현할 수 있다.In addition, by adding a plurality of duplexer filters as described above, it is possible to implement a portable repeater of a multi-frequency band.

이상, 상기 설명에서와 같이 본 발명은 다수의 듀플렉서 필터를 여러단 추가 구성하여 중계기를 소형화하여 구현함으로써 개인이 휴대할 수 있음은 물론 작은 공간에서도 설치할 수 있어 공간상의 문제가 없다.As described above, according to the present invention, a plurality of duplexer filters may be additionally configured to implement a repeater to be miniaturized so that the individual can be portable and installed in a small space.

또한, 기지국 및 중계기 자체로서 사용자 밀집지역의 사용자 각각을 통화권으로 커버하기 힘든 음영 지역을 해소할 수 있게 되는 효과가 있다.In addition, as the base station and the repeater itself, there is an effect that can eliminate the shadow area that is difficult to cover each of the users in the user dense area with the call zone.

Claims (1)

송신과 수신을 겸용으로 동작하여 안테나(Ant)를 통해 송수신되는 신호중 원하는 주파수 대역만을 통과시켜 다시 안테나(Ant)를 통해 송수신하는 다수의 제1∼제n 듀플렉서 필터(1-1,1-n)와, 상기 제1∼제n 듀플렉서 필터(1-1,1-n)를 통과해 송수신되는 주파수 대역의 신호를 저잡음 증폭하는 LNA(2)와, 상기 LNA(2)에서 저잡음 증폭된 신호를 일차적으로 일정 레벨만큼 전력 증폭하는 제1 PA(3-1)와, 상기 제1 PA(3-1)에서 증폭된 신호를 다시한번 일정 레벨만큼 전력 증폭시켜 상기 다수의 제1∼제n 듀플렉서 필터(1-1,1-n)로 출력하는 제2 PA(3-2)로 구성됨을 특징으로 하는 이동통신 시스템의 멀티 휴대용 중계기.A plurality of first to n-th duplexer filters (1-1,1-n) which transmit / receive and transmit and receive through the antenna Ant by passing only a desired frequency band among signals transmitted and received through the antenna Ant. And an LNA 2 for low noise amplifying a signal in a frequency band transmitted and received through the first to n-th duplexer filters 1-1 and 1-n, and a low noise amplified signal for the LNA 2 as a primary signal. The first PA (3-1) to amplify the power by a predetermined level, and the signal amplified by the first PA (3-1) power amplified by a predetermined level once again the plurality of first to n-th duplexer filter ( And a second PA (3-2) for outputting to 1-1,1-n.
KR1019990017583A 1999-05-17 1999-05-17 Multi-portable repeater of mobile communication system KR20000073962A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100414077B1 (en) * 2001-12-28 2004-01-07 엘지전자 주식회사 Receiver of mobile communication system
KR100717404B1 (en) * 2005-10-25 2007-05-16 주식회사 케이제이컴텍 Multi-band Power control apparatus for Mobile Communication system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4539706A (en) * 1983-02-03 1985-09-03 General Electric Company Mobile vehicular repeater system which provides up-link acknowledgement signal to portable transceiver at end of transceiver transmission
JPH08181650A (en) * 1994-12-20 1996-07-12 Nishi Hiroaki Small sized high output repeater with amplifier for reception and transmission of radio wave for portable telephone set
KR970009004A (en) * 1996-12-05 1997-02-24 장현룡 Cellular wireless repeater
KR19980025925A (en) * 1996-10-07 1998-07-15 오승철 Code Division Multiple Access (CDMA) Digital Cellular Mobile Communications Repeater

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4539706A (en) * 1983-02-03 1985-09-03 General Electric Company Mobile vehicular repeater system which provides up-link acknowledgement signal to portable transceiver at end of transceiver transmission
JPH08181650A (en) * 1994-12-20 1996-07-12 Nishi Hiroaki Small sized high output repeater with amplifier for reception and transmission of radio wave for portable telephone set
KR19980025925A (en) * 1996-10-07 1998-07-15 오승철 Code Division Multiple Access (CDMA) Digital Cellular Mobile Communications Repeater
KR970009004A (en) * 1996-12-05 1997-02-24 장현룡 Cellular wireless repeater

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100414077B1 (en) * 2001-12-28 2004-01-07 엘지전자 주식회사 Receiver of mobile communication system
KR100717404B1 (en) * 2005-10-25 2007-05-16 주식회사 케이제이컴텍 Multi-band Power control apparatus for Mobile Communication system

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