KR930007119A - Wireless receiver and transmitter - Google Patents

Wireless receiver and transmitter Download PDF

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Publication number
KR930007119A
KR930007119A KR1019920016264A KR920016264A KR930007119A KR 930007119 A KR930007119 A KR 930007119A KR 1019920016264 A KR1019920016264 A KR 1019920016264A KR 920016264 A KR920016264 A KR 920016264A KR 930007119 A KR930007119 A KR 930007119A
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South Korea
Prior art keywords
signal
delay
antenna
antennas
received
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KR1019920016264A
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Korean (ko)
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윌리엄 드류리 와트슨 앤드류
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에이취. 이보트슨
모토로라 리미티드
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Publication of KR930007119A publication Critical patent/KR930007119A/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0891Space-time diversity
    • H04B7/0894Space-time diversity using different delays between antennas
    • 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
    • H04B1/38Transceivers, 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0667Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of delayed versions of same signal
    • H04B7/0671Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of delayed versions of same signal using different delays between antennas
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/02Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/06Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity

Abstract

다이버서티를 제공하는 무선 수신기 및 송신기Wireless receivers and transmitters provide diversity

무선 수신기가 다이버서티를 제공하기 위해 물리적 공간상으로 떨어져 있는 제1(10) 및 제2(11) 안테나 및 시간적으로 떨어져 있는 수신된 심볼의 성분을 합성하기 위한 이퀄라이저(20)로 구성되어 있다. 제1 및 제2안테나에 수신된 신호가 합성기(19)에서 합성되어 이퀄라이저에 접속되어 있다. 가변 지연 수단(18)이 한 안테나에 수신된 신호를 다른 안테나에 수신된 신호에 비해서 지연시켜 제1 및 제2안테나로부터의 신호사이의 상쇄 간섭의 가능성을 상당히 감소시키기 위하여 한 안테나의 수신 경로에 제공되어 있다. 본 발명의 제2측면에 따라, 유사한 배열이 전송에 있어서 다이버서티를 위해 제공되어 있다.The wireless receiver consists of first (10) and second (11) antennas spaced in physical space to provide diversity and an equalizer 20 for synthesizing the components of the received symbols spaced apart. The signals received at the first and second antennas are synthesized at the synthesizer 19 and connected to the equalizer. Variable delay means 18 delays the signal received at one antenna relative to the signal received at the other antenna to significantly reduce the likelihood of destructive interference between signals from the first and second antennas. It is provided. According to a second aspect of the invention, a similar arrangement is provided for diversity in transmission.

Description

무선 수신기 및 송신기Wireless receiver and transmitter

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

제1도는 본 발명에 따른 다중 경로 향상 다이버서티 수신기(multi-path enhancement diversity receiver)의 제1 실시예의 도시도,1 is a diagram showing a first embodiment of a multi-path enhancement diversity receiver according to the present invention;

제2도는 본 발명의 설명을 위한 페이저 다이어그램(phasordiagram),2 is a phasordiagram for explaining the present invention,

제3도는 본 발명에 따라 지연수단(delay means)이 RF단에 제공되어 있는 다이버서티 수신기의 실시예의 도시도.3 shows an embodiment of a diversity receiver in which delay means are provided at the RF stage in accordance with the present invention.

Claims (15)

다이버서티를 제공하기 위해 물리적 공간상으로 떨어져 있는 제1 및 제2안테나, 시간적으로 떨어져 있는 수신된 심볼의 성분을 합성하기 위한 이퀄라이저, 제1 및 제2안테나에 수신된 신호를 합성하여 합성된 신호를 이퀄라이저에 접속하기 위한 합성기, 제1 및 제2안테나로부터의 신호 사이의 상쇄 간섭의 가능성을 상당히 감소시키기 위하여 한 안테나에 수신된 신호를 다른 안테나에 수신된 신호에 대해서 지연시키기 위한 한 안테나의 수신 경로에 있는 지연 수단을 구비하고 있는 무선 수신기에 있어서, 상기 지연 수단이 가변 지연으로 이루어지는 것을 특징으로 하는 무선 수신기.A signal synthesized by synthesizing the signals received at the first and second antennas spaced apart in physical space to provide diversity, an equalizer for synthesizing the components of the received symbols spaced apart in time, and the first and second antennas Synthesizer for connecting the equalizer, reception of one antenna to delay the signal received at one antenna with respect to the signal received at another antenna in order to significantly reduce the possibility of destructive interference between signals from the first and second antennas. A radio receiver having delay means in a path, wherein said delay means comprises a variable delay. 제1항에 있어서, 별개의 프레임으로 나누어지는 신호를 수신하기 위한 수단 및 프레임마다 지연을 변화시키기 위한 수단을 구비한 무선 수신기.2. The radio receiver of claim 1 having means for receiving a signal divided into separate frames and means for varying the delay from frame to frame. 제2항에 있어서, 이퀄라이저가 수신된 신호의 특성을 나타내기 위한 수단 및 상기 특성에 응답하여 지연을 변화시키기 위한 수단을 구비하고 있는 무선 수신기.3. The radio receiver of claim 2 wherein the equalizer comprises means for indicating a characteristic of a received signal and means for changing a delay in response to the characteristic. 제3항에 있어서, 상기 특성이 수신된 신호의 분산(dispersion)인 무선 수신기.4. The radio receiver of claim 3 wherein the characteristic is a dispersion of the received signal. 다이버서티를 제공하기 위해 물리적 공간상으로 떨어져 있는 제1 및 제2안테나, 시간적으로 떨어져 있는 수신된 심볼의 성분을 합성하기 위한 이퀄라이저, 제1 및 제2안테나에 수신된 신호를 합성하여 합성된 신호를 이퀄라이저에 접속하기 위한 합성기, 제1 및 제2안테나로부터의 신호사이의 상쇄 간섭의 가능성을 상당히 감소시키기 위하여 한 안테나에 수신된 신호를 다른 안테나에 수신된 신호에 대해서 지연시키기 위한 한 안테나의 수신 경로에 있는 지연 수단을 구비하고 있는 무선 수신기에 있어서, 지연 수단이 한 안테나에 수신된 신호의 주파수 및/또는 위상을 다른 안테나에 수신된 신호의 주파수 및/또는 위상에 대해서 천이시키기 위한 주파수 및/또는 위상 천이 수단을 구비하고 있는 것을 특징으로 하는 무선 수신기.A signal synthesized by synthesizing the signals received at the first and second antennas spaced apart in physical space to provide diversity, an equalizer for synthesizing the components of the received symbols spaced apart in time, and the first and second antennas Synthesizer for connecting the equalizer, reception of one antenna to delay the signal received at one antenna with respect to the signal received at another antenna in order to significantly reduce the possibility of destructive interference between signals from the first and second antennas. In a wireless receiver having delay means in the path, the frequency and / or phase for the delay means to shift the frequency and / or phase of the signal received at one antenna relative to the frequency and / or phase of the signal received at another antenna. Or a phase shifting means. 선행항중 어느 한 항에 있어서, 주기적인 비트로 구성되는 신호를 수신하기 위하여, 지연 수단이 한 비트 기간의 적어도 1/4의 지연을 야기시키는 무선 수신기.A radio receiver as claimed in any preceding claim, wherein the delay means causes a delay of at least one quarter of one bit period in order to receive a signal consisting of periodic bits. 선행항중 어느 한 항에 있어서, 주기적인 비트로 구성되는 신호를 수신하기 위하여, 지연 수단이 적어도 전 비트 기간(a full bit period)의 지연을 야기시키는 무선 수신기.A radio receiver as claimed in any preceding claim, wherein the delay means causes a delay of at least a full bit period in order to receive a signal consisting of periodic bits. 선행항중 어느 한 항에 있어서, 각각의 2차 안테나에 수신된 신호가 각각의 다른 안테나에 수신된 신호에 대해서 소정의 최소 지연 이상으로 시간상으로 떨어져 있도록 하기 위하여 1차 안테나, 다이버서티를 제공하기 위해 공간적으로 떨어져 있는 복수의 2차 안테나 및 각 2차 안테나의 수신 경로에 있는 지연 수단을 구비하고 있는 무선 수신기.The method of any one of the preceding claims, to provide a primary antenna, diversity so that the signals received at each secondary antenna are spaced apart in time above a predetermined minimum delay with respect to the signals received at each other antenna. Wireless receiver having a plurality of secondary antennas spaced apart from each other and a delay means in the receiving path of each secondary antenna. 선행항중 어느 한 항에 있어서, 지연 수단이 표면 음파 요소(surface acoustic wave element)로 구성되는 무선 수신기.A radio receiver as claimed in any preceding claim, wherein the delay means consists of a surface acoustic wave element. 다이버서티를 제공하기 위해 물리적 공간상으로 떨어져 있는 제1 및 제2 안테나, 전송될 신호를 분리하고 이것을 제1 및 제2 안테나에 접속하기 위한 스플리터 (splitter)수단, 및 제1 및 제2 안테나로부터의 신호 사이의 상쇄 간섭의 가능성을 상당히 줄이기 위하여 한 안테나에 의해 송신된 신호를 다른 안테나에 의해 송신된 신호에 대하여 소정의 최소 지연 이상으로 지연시키기 위한 한 안테나의 송신 경로에 제공되어 있는 지연 수단을 구비하고 시간적으로 떨어져 있는 수신된 심볼의 성분을 합성시키기 위한 이퀄라이저를 갖는 수신기와의 통신을 위한 무선 송신기에 있어서, 지연 수단이 가변 지연 수단인 것을 특징으로 하는 무선 송신기.First and second antennas spaced in physical space to provide diversity, splitter means for separating a signal to be transmitted and connecting it to the first and second antennas, and from the first and second antennas Delay means provided in the transmission path of one antenna to delay the signal transmitted by one antenna by more than a predetermined minimum delay with respect to the signal transmitted by the other antenna in order to significantly reduce the possibility of destructive interference between signals of 10. A radio transmitter for communication with a receiver having an equalizer for synthesizing the components of received symbols apart in time, wherein the delay means is a variable delay means. 제10항에 있어서, 별개의 프레임으로 나누어진 신호를 전송하기 위한 수단 및 프레임마다 지연을 변화시키기 위한 수단을 구비한 무선 송신기.11. The radio transmitter of claim 10 comprising means for transmitting a signal divided into separate frames and means for varying the delay from frame to frame. 다이버서티를 제공하기 위해 물리적 공간상으로 떨어져 있는 제1 및 제2 안테나, 전송될 신호를 분리(split)하고 이것을 제1 및 제2 안테나에 접속하기 위한 스플리터수단 및 제1 및 제2 안테나로부터의 신호사이의 상쇄 간섭의 가능성을 상당히 감소시키기 위하여 한 안테나에 의해 전송된 신호를 다른 안테나에 의해 전송된 신호에 대하여 소정의 최소 지연 이상으로 지연시키기 위한 한 안테나의 전송 경로에 제공되어 있는 지연 수단을 구비하고 시간적으로 떨어져 있는 수신된 심볼의 성분을 합성하기 위한 이퀄라이저를 갖는 수신기와의 통신하기 위한 무선 송신기에 있어서, 지연 수단이 한 안테나를 통하여 전송된 신호의 주파수 및/또는 위상을 다른 안테나를 통하여 전송된 신호의 주파수 및/또는 위상에 대하여 천이시키기 위한 주파수 및/또는 위상 천이 수단을 더 구비하고 있는 것을 특징으로 하는 무선 송신기.First and second antennas spaced in physical space to provide diversity, splitter means for splitting a signal to be transmitted and connecting it to the first and second antennas and from the first and second antennas Delay means provided in the transmission path of one antenna to delay the signal transmitted by one antenna by more than a predetermined minimum delay with respect to the signal transmitted by the other antenna in order to significantly reduce the possibility of destructive interference between signals. 10. A wireless transmitter for communicating with a receiver having an equalizer for synthesizing the components of received symbols, which are separated in time, wherein the delay means transmits the frequency and / or phase of the signal transmitted through one antenna via another antenna. Frequency and / or above for shifting with respect to the frequency and / or phase of the transmitted signal A radio transmitter, characterized in that further comprises a transition means. 주 송신기로부터 신호를 수신하여 그것을 재전송하기 위하여 주 송신기 및 리피터(repeater)의 공통 전송영역내에서 다중 경로 스프레드(spread)를 시뮬레이트하기 위하여, 재전송 이전에 신호를 지연시키기 위한 가변 지연 수단을 구비하고 있는 리피터.Variable delay means for delaying a signal prior to retransmission to simulate a multipath spread within a common transmission area of the main transmitter and repeater to receive and retransmit the signal from the main transmitter. Repeater. 주 송신기 및 리피터의 공통 전송 영역내에서 다중 경로 스프레드를 시뮬레이트하기 위하여 재전송 이전에 신호를 지연시키기 위한 지연 수단을 구비하고 재전송 이전에 신호의 위상 및/또는 주파수를 원격 수신기의 이퀄라이저의 공차(tolerance)내의 어느 양만큼 천이시키기 위한 주파수 및/또는 위상 천이 수단을 더 구비하고, 주 송신기로부터 신호를 수신하여 그것을 소정의 공차내의 위상 또는 주파수차(difference)를 갖는 원격 수신기에 재전송하기 위한 리피터.A delay means for delaying the signal prior to retransmission to simulate multipath spread within the common transmission region of the main transmitter and repeater and tolerating the equalizer of the remote receiver with phase and / or frequency of the signal prior to retransmission. Further comprising frequency and / or phase shifting means for transitioning by any amount within, the repeater for receiving a signal from the main transmitter and retransmitting it to a remote receiver having a phase or difference within a predetermined tolerance. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019920016264A 1991-09-07 1992-09-07 Wireless receiver and transmitter KR930007119A (en)

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GB9119194A GB2259430B (en) 1991-09-07 1991-09-07 Radio receiver and transmitter providing diversity
GB9119194.0 1991-09-07

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CA (1) CA2076290A1 (en)
DE (1) DE4229573A1 (en)
FI (1) FI923987A (en)
FR (1) FR2682838B1 (en)
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FR2682838A1 (en) 1993-04-23
ITRM920645A0 (en) 1992-09-04
DE4229573A1 (en) 1993-04-15
FI923987A0 (en) 1992-09-04
IT1258477B (en) 1996-02-26
GB2259430A (en) 1993-03-10
CA2076290A1 (en) 1993-03-08
AU2098192A (en) 1993-03-11
IL102817A (en) 1996-01-19
ITRM920645A1 (en) 1994-03-04
GB9119194D0 (en) 1991-10-23
SE9202541D0 (en) 1992-09-04
PL295855A1 (en) 1993-05-04
SE9202541L (en) 1993-03-08
JPH06169273A (en) 1994-06-14
FR2682838B1 (en) 1996-07-12
GB2259430B (en) 1996-05-01
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PL174158B1 (en) 1998-06-30
IL102817A0 (en) 1993-02-21

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