KR970056500A - Data transmission device of mobile communication channel - Google Patents

Data transmission device of mobile communication channel Download PDF

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Publication number
KR970056500A
KR970056500A KR1019950053609A KR19950053609A KR970056500A KR 970056500 A KR970056500 A KR 970056500A KR 1019950053609 A KR1019950053609 A KR 1019950053609A KR 19950053609 A KR19950053609 A KR 19950053609A KR 970056500 A KR970056500 A KR 970056500A
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KR
South Korea
Prior art keywords
symbol
channel
zero
mobile communication
data transmission
Prior art date
Application number
KR1019950053609A
Other languages
Korean (ko)
Other versions
KR0170998B1 (en
Inventor
함영권
송기홍
Original Assignee
양승택
한국전자통신연구원
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.)
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Publication date
Application filed by 양승택, 한국전자통신연구원 filed Critical 양승택
Priority to KR1019950053609A priority Critical patent/KR0170998B1/en
Publication of KR970056500A publication Critical patent/KR970056500A/en
Application granted granted Critical
Publication of KR0170998B1 publication Critical patent/KR0170998B1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

본 발명은 이동통신 채널에서의 다중파 지연이 한 심볼 이내의 무시할 수 없는 경우에 효과적으로 심볼간 간섭을 극복할 수 있는 데이터 전송장치에 관한 것으로, 한 심볼에 두배의 정보를 포함할 수 있는 변조 방식을 선택한 변조부; 채널에서 발생하는 페이딩을 보상하기 위하여 파일롯을 일정 주기마다 삽입하는 파일롯 삽입부; 한 심볼 이내의 채널 지연에 의한 심볼 간섭을 줄이기 위하여 매 심볼 후에 영심복(zero voltege)을 삽입하는 영심볼 삽입부; 및 대역제한된 채널에서의 심볼간 간섭을 줄이기 위하여 펄스 성형을 하여 안테나를 통해 신호를 출력하는 펄스성형 및 전송부로 구성된 것을 특징으로 하여, 한 심볼 이내의 지연시간을 무시할 수 없는 상황에서는 다중파 지연에 의한 심볼간 간섭을 극복하는데 상당이 효과적이다.The present invention relates to a data transmission apparatus that can effectively overcome the inter-symbol interference when the multi-wave delay in the mobile communication channel can not be ignored within one symbol, a modulation scheme that can include twice the information in one symbol A modulator for selecting; A pilot insertion unit for inserting a pilot at regular intervals to compensate for fading occurring in a channel; A zero symbol insertion unit for inserting a zero voltege after every symbol to reduce symbol interference due to channel delay within one symbol; And a pulse shaping and a transmitting unit for outputting a signal through an antenna by performing pulse shaping to reduce intersymbol interference in a band-limited channel. In a situation where a delay time within one symbol cannot be ignored, Significantly effective in overcoming intersymbol interference.

Description

이동통신 채널의 데이터 전송장치Data transmission device of mobile communication channel

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

제2도는 본 발명에 따른 전송장치의 구성도.2 is a block diagram of a transmission apparatus according to the present invention.

제4도는 본 발명의 변조방식에 따른 신호 배치도.4 is a signal constellation diagram according to a modulation scheme of the present invention.

Claims (1)

이동통신 채널에서의 데이터 전송장치에 있어서, 전송하고자 하는 데이터를 입력받는 데이터 입력단; 한 심볼에 두배의 정보를 포함할 수 있는 변조 방식을 선택한 변조부; 채널에서 발생하는 페이딩을 보상하기 위하여 파일롯을 일정 주기마다 삽입하는 파일롯 삽입부; 한 심볼 이내의 채널 지연에 의한 심볼 간섭을 줄이기 위하여 매 심볼 후에 영심볼(zero voltege)을 삽입하는 영심볼 삽입부; 및 대역제한된 채널에서의 심볼간 간섭을 줄이기 위하여 펄스 성형을 하여 안테나를 통해 신호를 출력하는 펄스성형 및 전송부로 구성된 것을 특징으로 하는 데이터 전송장치.A data transmission apparatus in a mobile communication channel, comprising: a data input terminal for receiving data to be transmitted; A modulator for selecting a modulation scheme capable of including double information in one symbol; A pilot insertion unit for inserting a pilot at regular intervals to compensate for fading occurring in a channel; A zero symbol insertion unit for inserting a zero voltege after every symbol to reduce symbol interference due to channel delay within one symbol; And a pulse shaping and transmitting unit configured to output a signal through an antenna by performing pulse shaping in order to reduce intersymbol interference in a band-limited channel. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950053609A 1995-12-21 1995-12-21 Data transfer apparatus of mobile communication channel KR0170998B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950053609A KR0170998B1 (en) 1995-12-21 1995-12-21 Data transfer apparatus of mobile communication channel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950053609A KR0170998B1 (en) 1995-12-21 1995-12-21 Data transfer apparatus of mobile communication channel

Publications (2)

Publication Number Publication Date
KR970056500A true KR970056500A (en) 1997-07-31
KR0170998B1 KR0170998B1 (en) 1999-03-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950053609A KR0170998B1 (en) 1995-12-21 1995-12-21 Data transfer apparatus of mobile communication channel

Country Status (1)

Country Link
KR (1) KR0170998B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010020093A (en) * 1999-08-14 2001-03-15 박기업 System providing pilot channels divided into slots wireless telecommunication

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010020093A (en) * 1999-08-14 2001-03-15 박기업 System providing pilot channels divided into slots wireless telecommunication

Also Published As

Publication number Publication date
KR0170998B1 (en) 1999-03-30

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