KR970009004A - Cellular wireless repeater - Google Patents

Cellular wireless repeater Download PDF

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Publication number
KR970009004A
KR970009004A KR1019960061736A KR19960061736A KR970009004A KR 970009004 A KR970009004 A KR 970009004A KR 1019960061736 A KR1019960061736 A KR 1019960061736A KR 19960061736 A KR19960061736 A KR 19960061736A KR 970009004 A KR970009004 A KR 970009004A
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frequency
signal processing
processing means
signal
radio
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KR1019960061736A
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Korean (ko)
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장현룡
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장현룡
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  • Radio Relay Systems (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

본 발명은 셀룰라 무선통신시 전파음영지역에서도 우수 품질의 통화가 가능하도록 하는 무선중계장치에 관한 것으로서, 기지국신호처리수단과 휴대국신호처리수단을 구비하며, 특히 휴대국신호처리수단은 주파수변환수단과 밴드패스필터로 셀룰라 통신주파수대역을 복수개의 통화채널 신호로 선별하여, 상기 통화채널 신호마다 일정레벨로 진폭제한 및 증폭을 행하고, 상기 선별된 신호의 주파수를 원래 셀룰라 통신주파수대역으로 복원한 다음, 중계 송신안테나에서 채널마다 일정한 무선신호가 발사되게 함으로써, 궤환 방지된 통화가 가능하도록 하는 특징이 있다.The present invention relates to a wireless repeater which enables a good quality call even in a radio shade area in cellular wireless communication, comprising a base station signal processing means and a mobile station signal processing means, and in particular, the mobile station signal processing means includes a frequency conversion means and a band. A pass filter selects a cellular communication frequency band into a plurality of talk channel signals, amplitude limitation and amplification to a predetermined level for each talk channel signal, restores the frequency of the selected signal to the original cellular communication frequency band, and then relays By transmitting a constant radio signal for each channel in the transmission antenna, there is a feature that enables a feedback-avoided call.

Description

셀룰라 무선중계장치Cellular wireless repeater

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명에 따른 셀룰라 무선중계장치의 개략적 블록도.1 is a schematic block diagram of a cellular wireless relay device in accordance with the present invention.

Claims (6)

무선신호를 수신하고 증폭한 다음 안테나로 방사시키는 셀룰라 무선중계장치에 있어서, 기지국으로부터의 셀룰라 무선주파수대역을 필터통과시키고 이를 증폭하는 기지국신호처리수단(1); 휴대통화장치로부터 수신된 신호 주파수대역을 필터통과 시키며 각 채널마다 일정한 레벨이 되도록 하고 증폭하는 휴대국신호처리수단(2); 휴대통화장치에서 발사되는 전파를 수신하거나 증폭된 무선신호를 발사시키는 제1안테나(3); 증폭된 기지국의 무선신호를 상기 제1안테나(3)로 전달하고 휴대통화장치로부터 수신된 무선신호를 상기 휴대국신호처리수단(2)으로 전달하는 제1듀플렉서(4); 기지국으로부터 발사되는 무선신호를 수신하거나 상기 휴대국신호처리수단(2)의 출력신호를 기지국측으로부터 무선신호로 발사시키는 제2안테나(5); 상기 제2안테나(5)에 수신된 기지국의 무선신호를 상기 기지국신호처리수단(1)으로 전달하고 휴대국신호처리수단(2)의 신호를 상기 제2안테나(5)로 전달하는 제2듀플렉서(6)를 구비하여 강전계지역의 전파를 수신 및 증폭하여 약 전계지역에 상기 수신 및 증폭한 무선신호를 발사시킴으로서 무선통화가 가능하도록 하는 것을 특징으로 하는 셀룰라 무선중계장치.A cellular radio repeater for receiving, amplifying a radio signal and then radiating it with an antenna, comprising: base station signal processing means (1) for passing a cellular radio frequency band from a base station through a filter and amplifying it; A portable station signal processing means (2) for passing a signal frequency band received from the portable communication device to a filter, and for amplifying and amplifying each channel; A first antenna (3) for receiving radio waves emitted from the portable communication device or emitting an amplified radio signal; A first duplexer (4) which transmits the radio signal of the amplified base station to the first antenna (3) and delivers the radio signal received from the mobile communication device to the mobile station signal processing means (2); A second antenna (5) for receiving a radio signal emitted from the base station or for firing the output signal of the portable station signal processing means (2) as a radio signal from the base station side; A second duplexer which transmits a radio signal of the base station received by the second antenna 5 to the base station signal processing means 1 and a signal of the portable station signal processing means 2 to the second antenna 5; And 6) receiving and amplifying a radio wave in a strong electric field area so as to fire the received and amplified radio signal in a weak electric field area to enable a wireless communication. 제1항에 있어서, 기지국신호처리수단은 셀룰라 기지국에서 발사된 무선신호 주파수만 선택하는 제1밴드패스필터(11); 상기 제1밴드패스필터(11)의 신호를 입력으로 하는 제1증폭기(12)를 구비하고, 휴대국신호처리수단(2)은 휴대통화장치에서 발사한 무선신호 주파수만 선별하는 제2밴드패스필터(13); 주파수변환, 선택 및 증폭을 용이하게 처리하기 위해 주파수를 변환하는 제1주파수변환수단(14); 주파수선택, 증폭 및 진폭제한을 용이하게 처리하기 위해 주파수를 변환하는 신호처리수단(15); 상기 신호처리수단(15)의 출력신호의 주파수를 원래의 셀룰라 무선주파수로 환원시키는 제2주파수변환수단(16); 상기 제2주파수변환수단(16)의 출력신호를 증폭하는 전력증폭기(17); 제1주파수변환수단(14)과 신호처리수단(15)에서 주파수변환하기 위해 국부발진주파수를 제공하는 발진수단(18); 신호처리수단(15)에서 출력되는 제어채널의 복조신호를 인가받아 발진수단(18)에서 주파수를 합성하기 위한 데이터를 입력하고, 본 발명의 장치를 제어하는 마이컴(19)을 구비한 것을 특징으로 한 셀룰라 무선중계장치.2. The apparatus of claim 1, wherein the base station signal processing means comprises: a first band pass filter (11) for selecting only a radio signal frequency emitted from a cellular base station; And a first amplifier 12 for inputting the signal of the first band pass filter 11, wherein the portable station signal processing means 2 selects only the radio signal frequencies emitted by the portable communication device. (13); First frequency converting means (14) for converting frequencies to facilitate frequency conversion, selection, and amplification; Signal processing means (15) for converting frequency to facilitate frequency selection, amplification and amplitude limitation; Second frequency conversion means (16) for reducing the frequency of the output signal of the signal processing means (15) to the original cellular radio frequency; A power amplifier 17 for amplifying the output signal of the second frequency converting means 16; Oscillation means (18) for providing a local oscillation frequency for frequency conversion in the first frequency conversion means (14) and the signal processing means (15); And a microcomputer 19 for inputting data for synthesizing frequencies in the oscillation means 18 by receiving a demodulation signal of a control channel output from the signal processing means 15, and controlling the apparatus of the present invention. One cellular radio repeater. 2항에 있어서, 제1,2주파수변환수단(14,16)은 입력무선주파수와 국부발진주파수의 합 또는 차를 발생시켜 주파수를 바꾸는 주파수혼합기(41); 밴드패스증폭기(42)를 구비하되 상기 밴드패스증폭기(42)는 밴드패스 필터수단과 증폭수단을 구비하여 된 것도 포함하여 특징으로 하는 셀룰라 무선중계장치.The frequency converter of claim 2, wherein the first and second frequency converting means (14, 16) comprises: a frequency mixer (41) for changing a frequency by generating a sum or a difference between an input radio frequency and a local oscillation frequency; And a band pass amplifier (42), wherein the band pass amplifier (42) includes a band pass filter means and an amplification means. 2항에 있어서, 신호처리수단(15)은 복수개의 신호처리수단서브가 병렬로 배치되고 입력신호가 동일하게 상기 복수개의 신호처리수단서브(제1,2,…N신호처리수단서브;21,22,…2N)에 입력되어 상기 복수개의 신호처리수단서브(21,22,…2N) 출력이 한 점에서 합쳐져서 신호처리수단(15)의 출력으로 하되, 상기 복수개의 신호처리수단서브(21,22,…2N)의 각각은 입력주파수를 변환시키는 제3주파수변환수단(31); 압력신호진폭이 일정이상을 넘지 않도록 하는 진폭제한기(32); 상기 진폭제한기(32)의 신호에 포함된 고조파 성분을 제거하고 기본파만 추출하는 제3밴드패스피터(33); 상기 제3밴드패스필터(33)의 출력주파수를 제1안테나(3)로 수신되는 셀룰라 통신주파수로 복원 변환하는 제4주파수변환수단(34)을 구비하되 복조수단(35)을 추가하여 구비하는 것도 포함하는 것을 특징으로 하는 셀룰라 무선중계장치.3. The signal processing means (15) according to claim 2, wherein the signal processing means (15) has a plurality of signal processing means sub-arrays arranged in parallel and the input signal is the same. 22,... 2N) and the outputs of the plurality of signal processing means subs 21, 22,... 2N are combined at one point to be the output of the signal processing means 15, and the plurality of signal processing means subs 21, 21. 22,... 2N each includes third frequency converting means 31 for converting an input frequency; An amplitude limiter 32 for preventing the pressure signal amplitude from exceeding a predetermined value; A third band pass Peter 33 for removing harmonic components included in the signal of the amplitude limiter 32 and extracting only fundamental waves; And a fourth frequency converting means (34) for restoring and converting the output frequency of the third band pass filter (33) to the cellular communication frequency received by the first antenna (3), further comprising a demodulation means (35). Cellular wireless repeater comprising a. 2항에 있어서, 발진수단(18)은 복수개의 발진모듈을 구비하며 한개의 기준발진원(15)의 출력이 병렬로 구성된 복수개의 발진모듈에 인가되어 상기 복수개의 각 발진모듈출력 주파수가 복조수단(35)으로부터의 복조신호를 근거로 하여 결정되어지되, 제1주파수변환수단(14)에 인가되는 국부발진주파수와 제2주파수변환수단(16)에 인가되는 국부발진주파수가 동일하며, 제3주파수변환수단(31)에 인가되는 국부발진주파수와 제4주파수변환수단(34)에 인가되는 국부발진주파수가 동일함을 특징으로 하는 셀룰라 무선중계장치.The oscillation means (18) according to claim 2, wherein the oscillation means (18) is provided with a plurality of oscillation modules and the output of one reference oscillation source (15) is applied to a plurality of oscillation modules configured in parallel so that each of the plurality of oscillation module output frequencies is demodulated. The local oscillation frequency applied to the first frequency conversion means 14 and the local oscillation frequency applied to the second frequency conversion means 16 are the same, and are determined based on the demodulation signal from (35). Cellular radio repeater, characterized in that the local oscillation frequency applied to the frequency conversion means 31 and the local oscillation frequency applied to the fourth frequency conversion means (34). 4항에 있어서, 신호처리수단서브를 구성하는 제3주파수변환수단(31)에서 출력되는 주파수는, 복수개의 신호처리수단서브(제1,2,…N신호처리수단서브;21,22,…2N) 모두 동일함을 특징으로 한 셀룰라 무선중계장치.The frequency output from the third frequency converting means 31 constituting the signal processing means sub is a plurality of signal processing means subs (first, second, ... N signal processing means subs; 21, 22, ...). 2N) Cellular wireless relay device characterized in that all the same. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019960061736A 1996-12-05 1996-12-05 Cellular wireless repeater KR970009004A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980084728A (en) * 1997-05-24 1998-12-05 윤종용 Satellite communication system using portable wireless repeater
KR20000073962A (en) * 1999-05-17 2000-12-05 김영환 Multi-portable repeater of mobile communication system
KR100513177B1 (en) * 2003-03-07 2005-09-07 주식회사 케이티프리텔 A frequency band conversion relay apparatus and method thereof same
KR100551893B1 (en) * 1998-11-20 2006-06-22 주식회사 팬택앤큐리텔 Wireless Subscriber Network Subscriber Registration Device with Wireless Private Switching Adapter

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980084728A (en) * 1997-05-24 1998-12-05 윤종용 Satellite communication system using portable wireless repeater
KR100551893B1 (en) * 1998-11-20 2006-06-22 주식회사 팬택앤큐리텔 Wireless Subscriber Network Subscriber Registration Device with Wireless Private Switching Adapter
KR20000073962A (en) * 1999-05-17 2000-12-05 김영환 Multi-portable repeater of mobile communication system
KR100513177B1 (en) * 2003-03-07 2005-09-07 주식회사 케이티프리텔 A frequency band conversion relay apparatus and method thereof same

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