KR20040032283A - Single carrier transmission system capable of acclimating dynamic environment and a method therefore - Google Patents

Single carrier transmission system capable of acclimating dynamic environment and a method therefore Download PDF

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KR20040032283A
KR20040032283A KR1020020061237A KR20020061237A KR20040032283A KR 20040032283 A KR20040032283 A KR 20040032283A KR 1020020061237 A KR1020020061237 A KR 1020020061237A KR 20020061237 A KR20020061237 A KR 20020061237A KR 20040032283 A KR20040032283 A KR 20040032283A
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single carrier
method
data stream
carrier transmission
sequence information
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KR100920723B1 (en
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정진희
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삼성전자주식회사
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00Baseband systems
    • H04L25/02Details ; Arrangements for supplying electrical power along data transmission lines
    • H04L25/03Shaping networks in transmitter or receiver, e.g. adaptive shaping networks ; Receiver end arrangements for processing baseband signals
    • H04L25/03006Arrangements for removing intersymbol interference
    • H04L25/03012Arrangements for removing intersymbol interference operating in the time domain
    • H04L25/03019Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00Baseband systems
    • H04L25/02Details ; Arrangements for supplying electrical power along data transmission lines
    • H04L25/03Shaping networks in transmitter or receiver, e.g. adaptive shaping networks ; Receiver end arrangements for processing baseband signals
    • H04L25/03006Arrangements for removing intersymbol interference
    • H04L2025/0335Arrangements for removing intersymbol interference characterised by the type of transmission
    • H04L2025/03375Passband transmission
    • H04L2025/03382Single of vestigal sideband

Abstract

PURPOSE: A single carrier transmitting system adaptable to a dynamic environment change and a method thereof are provided to easily keep up with frequent changes of a channel in a dynamic environment. CONSTITUTION: A scrambler(100) randomizes transmitting data signals. An FEC(Forward Error Correction) unit(110) corrects a bit error of an inputted data stream. A domain dividing unit(120) searches the data stream corrected by the FEC unit with counting the number of symbols of the corrected data stream. The domain dividing unit divides the data stream into a plurality of domains based on the counted value. A PN(Pseudo Noise sequence) information generator generates PN information which is synchronous information for synchronization between a transmitting side and a receiving side. A multiplexer(130) inserts the PN information between the divided data streams.

Description

동적환경변화에 적응가능한 단일반송파 전송시스템 및 그 방법{Single carrier transmission system capable of acclimating dynamic environment and a method therefore} Dynamic single possible adaptation to changes in the environment-carrier transmission system and method {Single carrier transmission system capable of acclimating dynamic environment and a method therefore}

본 발명은 단일반송파 전송시스템 및 그 전송방법에 관한 것으로서, 보다 상세하게는, 동적 환경변화에 적응할 수 있는 단일반송파 전송시스템 및 그 전송방법에 관한 것이다. The present invention relates to, and more specifically, the single carrier transmission system and a transmission method that can adapt to dynamic environmental change relates to a single-carrier transmission system and a transmission method.

통신과 컴퓨터 및 방송이 융합되어 멀티미디어화함에 따라 세계 각국은 기존의 아날로그 방식의 방송을 디지털화하고 있다. As the communications and computer and broadcast around the world are fused meoltimidieohwa digitize existing analogue broadcasting system. 특히, 미국, 유럽, 일본 등 선진 각국에서는 이미 위성을 통한 디지털 방송을 일부에서 실시하고 있다. In developed countries, especially, the United States, Europe and Japan are already conducting digital broadcasting via satellite in part. 또한, 디지털 방송을 위한 표준 방식이 마련되었으며, 이러한 표준 방식은 나라마도 조금씩 다르게 구성된다. In addition, this was the standard method for providing digital broadcasting, this is the standard method consists of slightly different nations Mado.

미국의 연방통신위원회(Federal Communications Commission : FCC)는 1996년 12월 24일, ATSC (Advanced Television Systems Committee)의 디지털 TV 표준(Digital Television Standard)을 차세대 TV 방송의 표준으로 승인하였다. The US Federal Communications Commission (Federal Communications Commission: FCC) has approved a digital TV standard (Digital Television Standard) as of December 24, 1996, ATSC (Advanced Television Systems Committee) standard for the next generation of TV broadcasting. 이 결정에 따라 ATSC 표준에 규정된 비디오 및 오디오 압축, 패킷 데이터 전송구조, 변조 및 전송 시스템에 대한 규격은 지상파 방송 사업자가 의무적으로 준수해야 하며, 다만 비디오 포맷에 대한 규격은 특별히 규정하지 않고 산업계가 자율적으로 결정할 수 있도록 하였다. This decision regulations for video and audio compression, packet data transmission structure, modulation and transmission system prescribed in the ATSC standard, and terrestrial broadcasters should be mandatory compliance, not just the industry standard for video format is not otherwise specified so it can autonomously decide.

ATSC 표준에 따르면, 비디오 압축방식은 MPEG(Moving Picture Experts Group)-2 비디오(ISO/IEC IS 13818-2) 표준방식을 채택한다. According to the ATSC standard, video compression method is adopted MPEG (Moving Picture Experts Group) -2 video (ISO / IEC IS 13818-2) standard method. 전 세계적으로 모든 디지털 방송이 이를 표준으로 채택하였다. This all-digital broadcasts around the world have adopted it as a standard. 오디오 압축방식은 Dolby사에 의해 제안된 디지털 오디오 압축(Digital Audio Compression)(AC-3) 표준방식을 채택한다. Audio compression method is adopted for the digital audio compression (Digital Audio Compression) (AC-3) standard method proposed by Dolby Corporation. 다중화 방식은 MPEG-2 시스템(ISO/IEC IS 13818-1) 표준방식을 채택한다. Multiplexing adopts the MPEG-2 system (ISO / IEC IS 13818-1) standard method. 이 방식은 비디오 압축방식과 마찬가지로 유럽 방식에서도 사용되고 있다. This approach has been used in Europe as well as how the video compression. 변조 및 전송방식은 8-VSB(Vestigial Side Band) 방식을 채택한다. Modulation and transmission scheme adopts the 8-VSB (Vestigial Side Band) system. VSB 방식은 디지털 TV 방송을 위해 제안된 것으로서 6MHz의 대역을 사용하여 19.39 Mbps의 데이터 전송율을 얻을 수 있어 대역효율이 높으며 구조가 간단하다. VSB scheme it is possible to obtain a data rate of 19.39 Mbps with the band of 6MHz as proposed for the digital TV broadcasting has high bandwidth efficiency is simple in structure. 또한, 기존의 NTSC(National Television Standards Committee) 방송 채널과의 간섭을 최소화하도록 설계되었으며, 잡음이 많은 상황에서도 안정적으로 동작할 수 있도록 파일럿 신호, 세그먼트 동기신호, 필드 동기신호 등을 사용한다. In addition, the use of such conventional NTSC (National Television Standards Committee) designed to minimize interference with the broadcast channel, a pilot signal, the segment sync signal and field sync signal in to a noisy situation can operate stably. 또한, 에러 방지를 위해 리드-솔로몬(Reed-Solomon : RS) 부호와 트렐리스(Trellis) 부호를 사용한다. Further, for the error protection Reed-Solomon: uses (Reed-Solomon RS) code and the trellis (Trellis) code.

ATSC 디지털 TV 표준은 단일반송파 진폭변조 잔류측파대 방식(VSB)을 사용하 여 6MHz 대역폭으로 고품질의 비디오, 오디오 및 보조 데이터를 전송하며 두가지 방송모드 즉, 동시지상파 방송모드와 고속 데이터율 케이블 방송모드를 지원하게 되어 있다. ATSC digital TV standard, single-carrier amplitude modulation remaining side using a band system (VSB) and sends the high-quality video, audio and auxiliary data into W 6MHz bandwidth, and two kinds of broadcast mode, that is, simultaneously the terrestrial broadcast mode and a high speed data rate of a cable broadcast mode, there is a support. 이 방식의 가장 큰 특징은 기존의 아날로그 VSB 방식을 변형하여 디지털 신호의 변조가 가능하도록 8-VSB 변조방식을 사용한다는 것이다. The greatest feature of this method is that it uses the 8-VSB modulation scheme by modifying the existing analog VSB system to enable modulation of the digital signal.

도 1은 ATSC 표준방식에 의한 디지털방송 전송시스템을 개략적으로 도시한 블록도이다. Figure 1 is a block diagram schematically illustrating a digital broadcasting transmission system according to the ATSC standard method. 도면을 참조하면, 디지털 방송 시스템은, 스크램블러(10), FEC(Forward Error Correction)부(20), 먹스(mux)(30), 파일럿 삽입부(40), 변조부(50), 및 RF 컨버터(60)를 구비한다. Referring to the drawings, a digital broadcast system comprising a scrambler (10), FEC (Forward Error Correction) unit 20, a multiplexer (mux) (30), a pilot inserting unit 40, a modulation part 50, and the RF converter and a 60. 또한, FEC부(20)는 RS인코더(Reed-Solomon enconder)(21), 인터리버(interleaver)(23), 및 트렐리스 인코더(trellisencoder)(25)를 구비한다. In addition, the FEC unit 20 is provided with an RS encoder (Reed-Solomon enconder) (21), interleavers (interleaver) (23), and a trellis encoder (trellisencoder) (25).

스크램블러(10)는 데이터 랜더마이저(data randomizer)라고도 하며, 동기식 데이터 전송에서 00000000b 또는 11111111b 등과 같이 같은 숫자가 반복되어 동기 신호를 상실하는 문제를 방지하기 위하여, 전송되는 데이터 신호를 랜덤화한다. The scrambler 10 is also referred to as data randomizer (data randomizer), in order to prevent the problem that the number is repeated loss of the synchronization signal, such as such as the synchronous data transmission or 00000000b 11111111b, it randomizes the data signal transmitted. 스크램블러(10)는 데이터 신호의 각 바이트 값을 소정의 패턴에 따라 바꾸며, 이 과정은 수신기에서 역으로 처리되어 정확한 값을 복원된다. Scrambler 10, changing the value of each byte of the data signal according to a desired pattern, the process is treated in the station at the receiver are restored to the correct value.

RS인코더(21)는 입력 데이터 스트림에 부가되는 FEC 구조이다. RS encoder 21 is the FEC structure is added to the input data stream. FEC는 전송과정에서 발생하는 비트 에러를 보정하는 기술을 말한다. FEC refers to a technique for correcting a bit error generated in a transmission process. 대기중의 노이즈, 다중경로 전파, 신호 페이딩과 송신기의 비직선성은 모두 비트 에러발생 요인이 되며, RS인코더(21)는 MPEG-II 전송 스트림의 경우, 187바이트 후미에 20개의 바이트를 추가한다. And the noise, multipath propagation, a signal non-Linearity both bit error occurrence factor of the fading, and the transmitter in the atmosphere, RS encoder 21 adds MPEG-II For the transport stream, the tail 187 bytes to 20 bytes. 추가되는 20개의 바이트를 리드 솔로몬 패리티 바이트라고 한다. It is referred to as a 20-byte RS parity bytes are added. 수신기에서는 수신된 187바이트를 20패리티 바이트와 비교하여 정확성을 판별한다. The receiver determines the accuracy by comparing the received 187-byte and 20 parity bytes. 정확성 판별에 의해 에러가 검출되면, 수신기는 에러의 위치를 찾아내어 왜곡된 바이트를 수정해서 원래의 신호로 복구한다. If an error is detected by the determination accuracy, the receiver to correct the distortion by finding the position of the byte error to restore the original signal. 이 방법으로 스트림당 10바이트의 에러까지 복구가능하다. In this way it is possible to recover the error of 10 bytes per stream. 그 이상의 에러는 복구 불가능하며, 복구가 불가능한 경우 전체의 스트림은 폐기처분된다. More errors and can not be recovered, the entire stream is disposed of when the recovery is impossible.

인터리버(23)는 데이터 스트림의 순서를 교란하여 전송신호를 간섭에 강(둔감)하도록 시간축상에서 데이터를 분산시킨다. Interleaver 23 distributes the data on the time axis to steel (dull) a transmission signal to interference and disturbing the order of the data stream. 전송신호의 분산에 의해 신호 대역의 어떤 부분에 노이즈가 발생하더라도 그 외의 대역에 있는 신호는 보존된다. Even if noise is generated in any part of the signal band by the dispersion of the transmission signal the signal in the other band it is preserved. 수신기는 이 과정을 역으로 처리하며, 분산된 전송신호를 다시 정확한 값으로 복원한다. The receiver processes this procedure in reverse to recover the transmitted signal distributed back to the correct value.

트렐리스 인코더(25)는 RS인코더(21)와는 다른 형태의 FEC 구조를 이룬다. Trellis encoder 25 forms the structure of another type than FEC RS encoder 21. MPEG-II전체 스트림을 다루는 RS인코더(21)와 달리, 트렐리스 인코더(25)는 시간의 영향을 고려하여 인코딩하며, 이러한 과정을 중첩부호화(Convolutional Code)라고도 한다. MPEG-II, unlike the RS encoder 21 covering the entire stream, a trellis encoder 25 and is encoded in consideration of the influence of time, and this process known as superposition coding (Convolutional Code). 트렐리스 인코더(25)는 8비트 바이트를 4개의 2비트 워드로 분할한다. Trellis encoder 25 divides the 8-bit byte into four 2-bit words. 여기서, 2비트 워드는 이전의 워드와 비교되며, 3비트 2진 코드가 이전 워드에서 현재 워드로의 변화를 기술할 목적으로 발생된다. Here, the 2-bit word is compared to the previous word, a 3-bit binary code is generated for the purpose of describing the variation of the current word in the previous word. 이 3비트 코드가 원래의 2비트 워드를 대체하여 8-VSB의 여덟 레벨 심볼로 전송된다(3비트 = 8레벨). This 3 bit code is to replace the original 2-bit word is transferred to the eight-level symbols in the 8-VSB (3 bits = 8 levels). 이로써, 트렐리스 인코더(25)로 입력된 2비트 워드는 3비트 신호로 변환되어 출력된다. Thus, the 2-bit word input to the Trellis encoder 25 is output is converted into a 3-bit signal. 이러한 이유로 8-VSB시스템을 2/3레이트 코더(rate coder)라 부르기도 한다. For this reason it is sometimes referred to the 8-VSB system 2/3 rate coder (rate coder). 트렐리스 코딩의 강점은 시간에 따른 신호의 경과를 추적하여 오류 정보를 제거할 수 있다는 것이다. The strength of trellis coding is that it can eliminate the error information to track the progress of the signal over time.

트렐리스 인코더(25)에 의한 트렐리스 코딩 후, 먹스(30)는 전송신호에 세그먼트 싱크 및 프레임 싱크를 삽입한다. Trellis after the trellis encoding by the encoder 25, a multiplexer (30) inserts a segment sync and frame sync to the transmission signal. 파일럿 삽입부(40)는 세그먼트 싱크 및 프레임 싱크가 삽입된 전송신호에 ATSC 파일럿(PILOT : Programmed Inquiry Learning Or Teaching)을 삽입한다. The pilot inserting unit 40 is transferred to the ATSC pilot signal a segment sync and the frame sync is inserted: The insert (PILOT Programmed Inquiry Learning Or Teaching). 여기서, 변조 직전에 약간의 DC편이(1.25V)가 8-VSB기저대역 신호에 인가되는데, 이 경우 약간의 잔류 반송파가 변조된 스펙트럼의 제로 주파수 포인트에 나타난다. Here, there is applied to some of the DC side (1.25V) is 8-VSB baseband signal just before the modulation, in which case some of the residual carrier frequency appears on the zero point of the modulation spectrum. 이 발생된 잔류 반송파를 ATSC 파일럿이라고 한다. This occurs, the residual carrier is referred to as ATSC pilot.

변조부(50)는 파일럿 삽입부(40)로부터 수신된 전송신호를 8-VSB 변조방식을 사용하여 변조시킨다. Modulation part 50 modulates and the transmitted signal received from the pilot inserting unit 40, using 8-VSB modulation system. RF컨버터(60)는 변조된 전송신호를 RF(Radio Frequency : 무선 주파수)변환시키며, 변환된 전송신호를 안테나를 통해 송출한다. RF converter 60 includes a modulated transmit signal RF: sikimyeo conversion (Radio Frequency RF), and transmits the converted transmission signal through an antenna.

ATSC 데이터 세그멘트는 원래의 MPEG-II 데이터 스트림 187바이트+20바이트로 구성된다. ATSC data segment is composed of the original MPEG-II data stream 187 bytes + 20 bytes. 트렐리스 코딩후 207바이트의 세그멘트는 828개(=207×4), 8레벨 심볼 스트림으로 바뀐다. Trellis segment of the 207-byte after coding are 828 (= 207 × 4), changes to a 8 level symbol stream.

세그멘트 동기신호는 데이터세그멘트의 머리에 부가되는 반복형태의 4개의 심볼(1바이트) 펄스로서 원래의 MPEG-II 전송 스트림의 동기 바이트를 대체한다. Segment synchronizing signal replaces the original MPEG-II transport stream sync byte as four symbols in the repeated pattern is added to a head of the data segments (1 byte) pulse. 수신기는 완전히 랜덤한 여타 데이터에서 반복형태를 지닌 세그멘트 동기신호를 식별하는 것이 용이하며, 데이터 복구가 불가능할 정도의 노이즈와 간섭레벨에서도 클럭의 정확한 복원이 가능하다. The receiver is capable of completely random it is easy to identify a segment synchronizing signal having a repeated pattern in the other data, and accurate recovery of the clock in the noise and interference level of the degree of the data recovery is not possible. 세그먼트 동기신호(segment sync : 세그먼트 싱크)가 부여된 전송신호의 세그먼트는 도 2에 도시된 바와 같다. Segment synchronizing signal (sync segment: segment sync), the segment of the transmitted signal given is shown in Fig. 즉, 전송신호의 세그먼트는 4개의 심볼로 구성된 세그먼트 동기신호, 63개의 심볼로 구성된 의사잡음열(Pseudo Noise sequence : PN)정보 세개, 24개의 심볼로 구성된 전송모드, 예약된 92개의 심볼, 및 12개의 프리코드(precode) 심볼로 이루어진다. That is, the segments of the transmitted signal is four symbol PN array constituted from a segment sync signal of 63 symbols consisting of (Pseudo Noise sequence: PN) information three, transfer mode, a reservation of 92 symbols, and 12 consisting of 24 symbols It consists of a single pre-code (precode) symbol. 여기서, 의사잡음열은 신호를 수신하는 수신기에서 전송신호의 동기 및 채널을 예측하기 위한 동기정보열이다. Here, the pseudo noise is a thermal heat synchronization information to predict a synchronization and channel of the transmission signal at a receiver for receiving a signal. 의사잡음열은 PN정보발생부(도시하지 않음)에 의해 발생되며, 먹스(30)에 의해 전송신호에 삽입된다. Pseudonoise PN heat is generated by the information generating unit (not shown), and inserted into the transmitted signal by the multiplexer 30.

도 3은 ATSC 표준에 따른 전송신호의 프레임 구조를 도시한 도면이다. 3 is a diagram illustrating a frame structure of a transmission signal according to the ATSC standard. 도면을 참조하면, ATSC 데이터의 필드는 313개의 연속된 데이터 세그먼트로 구성되며, ATSC 필드 동기(field sync)는 필드 데이터 세그멘트가 된다. Referring to the drawings, the field of the ATSC data is composed of 313 consecutive data segments, ATSC field synchronization (sync field) is the field data segment. ATSC 데이터 프레임은 두 개의 ATSC 데이터 필드로 구성된다. ATSC data frame is composed of two ATSC data field.

ATSC 데이터 필드의 반복주기는 24.2msec이며 NTSC의 수직귀선기간(Vertical Interval)과 유사(NTSC 주기=16.7msec)하다. Repetition period of 24.2msec ATSC data field and a vertical blanking period of the NTSC (Vertical Interval) is similar to (NTSC cycle = 16.7msec). 필드 동기는 잘 알려진 데이터 심볼 패턴을 갖고 있으며 수신기에서 고스트제거에 사용된다. Field sync has a well-known data symbol pattern, and is used to remove a ghost at the receiver. 이 과정은 에러가 포함된 수신신호를 필드 동기와 비교함으로써 이루어지며 그 결과 나타나는 에러 벡터를 이용하여 고스트제거 등화기의 특성을 조정한다. This process is achieved by comparing the received signal contains an error and the field sync result using the error vector may appear to adjust the characteristics of the group to remove ghost equalization.

최근에, 중국의 광파과학연구원(The Academy of Broadcasting Science : ABS)는 중국 내의 독자적인 디지털 방송을 위한 CDTB-T(Chinese Digital Television Broadcasting-Terrestrial) 표준을 제안하였다. Recently, Lightwave Research Institute of China (The Academy of Broadcasting Science: ABS) proposed a CDTB-T (Chinese Digital Television Broadcasting-Terrestrial) standard for personal digital broadcasting in China. CDTB-T 표준은 미국의 ATSC 표준방식과 마찬가지로 단일반송파 방식이며, QAM 변조방식 및 QPSK 변조방식을 사용한다. CDTB-T standard which is a single-carrier scheme like the ATSC standard method of the United States, the use of QAM modulation scheme, and QPSK modulation scheme. 즉, CDTB-T 표준은 모바일모드와 픽스모드에 대해 변조방식을 달리하며, 모바일모드에 대해 QPSK 변조방식을 사용하고 픽스모드에 대하여는 16QAM 변조방식을 사용한다. That is, CDTB-T standard is different modulation scheme for the mobile mode and the online mode, using a QPSK modulation scheme for the mobile mode, and uses a 16QAM modulation scheme with respect to the online mode. 또한, 픽스모드 중 고용량의 데이터에 대하여는 64QAM 또는 256QAM 변조방식을 사용한다. In addition, the use of 64QAM or 256QAM modulation scheme with respect to the high capacity of the data of the online mode.

도 4는 CDTB-T 표준에 따른 전송신호의 프레임 구조를 개략적으로 도시한 도면이다. Figure 4 is a diagram illustrating a frame structure of a transmission signal according to the CDTB-T standard. 도면을 참조하면, CDTB-T 표준에 따른 전송신호의 프레임은 프레임 싱크, 패이로드 1, 훈련심볼, 패이로드 2, 및 테일심볼(tail symbol) 순으로 이어진다. Referring to the figures, a frame of a transmission signal according to the CDTB-T standard, the frame sync, payload 1, training symbols, the payload followed by 2, and a tail symbol (tail symbol) in order. 여기서, 프레임 싱크는 511개의 심볼로 구성된 의사잡음열정보 세 개가 연속적으로 이어진 후, 컨트롤비트(control bits) 및 여유비트(remaining bits)가 이어지는 구조를 이룬다. Here, the frame sync is forms a pseudo noise column information structure is then continuously led to three of leading, the control bits (control bits) and spare bits (remaining bits) consisting of 511 symbols. 연속적으로 이어진 세 개의 의사잡음열정보를 훈련심볼이라고 한다. Three pseudo-noise sequence information subsequently led to the train called symbols. 여기서, 컨트롤비트는, 데이터 통신에서 자료 전송을 위하여 통신 회선을 통하여전송되는 모든 비트들 중에서 패리티, 시작, 종료 비트 등과 같이 제어를 목적으로 사용되는 비트들을 지칭한다. Here, the control bit, from among all the bits transmitted over the communication line to the data transmission in a data communication refers to the bits used for the purpose of control, such as the parity, start and end bits.

여유비트는, 시간축의 변환, 비트 레이트 압축, 오류 정정 등을 위한 영역이다. Spare bit, an area for the conversion, bit rate compression, error correction, etc. on the time base. 패이로드는 상위 레이어에 대한 정보를 위한 영역이다. The payload is an area for the information on the upper layer. 테일심볼 영역은 전송하기 위한 부가정보를 위한 영역이며, 프레임의 마지막 노드에 구비되기 때문에 테일심볼 영역이라고 한다. Tail symbol area is the area for the additional information for transmission, referred to as a tail symbol region, since having the last node in the frame.

CDTB-T 표준에 따른 전송신호의 프레임 구조는 프레임 싱크부에 의사잡음열정보가 세 개 삽입되고, 패이로드 1이 삽입되어 있는 구조로서, 하나의 프레임 내에 훈련심볼이 두 번 삽입되어 있다. Frame structure of the transmission signal according to the CDTB-T standard is a structure that is inserted into the three PN sequence information to the frame sync part is, the payload is inserted first, is a training symbol inserted twice in one frame. 그런데, 이와 같은 프레임 구조는, 첫 번째 훈련심볼과 두 번째 훈련심볼 간의 주기보다 더 빠르게 변화하는 동적인 환경에서는 채널의 변화를 적절히 따라가기 어렵다는 문제점이 있다. However, such a frame structure, a first training symbol and a second training in a dynamic environment is difficult to follow the changes in the channel appropriately to issues more rapidly changing than the period between the symbols.

본 발명은 상기의 문제점을 해결하기 위하여 창안된 것으로서, 동적 환경변화에 적응하기 용이한 단일반송파 전송시스템을 제공하는데 그 목적이 있다. The present invention been made to solve the above problems, there is provided a single-carrier transmission system easy to adapt to the dynamic changes in the environment.

도 1은 ATSC 표준방식에 의한 디지털방송 전송시스템을 개략적으로 도시한 블록도, Figure 1 is a block diagram schematically showing a digital broadcasting transmission system according to the ATSC standard methods,

도 2는 도 1에 의한 전송신호의 세그먼트를 도시한 도면, Figure 2 shows a segment of a transmission signal according to figure 1,

도 3은 도 1에 의한 전송신호의 프레임 구조를 도시한 도면, Figure 3 is a view showing a frame structure of a transmission signal according to figure 1,

도 4는 CDTB-T 표준에 따른 전송신호의 프레임 구조를 시계열적으로 도시한 도면, Figure 4 shows a frame structure of a transmission signal according to the CDTB-T standard in a time-series drawings,

도 5는 본 발명에 따른 디지털방송 전송시스템을 개략적으로 도시한 블록도, Figure 5 is a block diagram schematically showing a digital broadcasting transmission system according to the present invention,

도 6은 도 5에 의한 디지털방송 전송방법을 나타낸 흐름도, 그리고 6 is a flowchart illustrating a digital broadcasting transmitting method according to Figure 5, and

도 7은 도 5에 의한 전송신호의 프레임 구조를 도시한 도면이다. 7 is a diagram illustrating a frame structure of a transmission signal according to Fig.

* 도면의 주요부분에 대한 부호의 설명 * * Description of the Related Art *

10, 100 : 스크램블러 20, 110 : FEC부 10, 100: scrambler 20, 110: FEC unit

30, 130 : 먹스 120 : 영역구분부 30, 130: mux 120: region dividing section

121 : 카운터 121: Counter

상기의 목적을 달성하기 위한 본 발명에 따른 단일반송파 전송시스템은, 송신측과 수신측의 동기를 위한 동기정보인 의사잡음열정보를 단일반송파 방식의 전송신호에 삽입하여 전송하는 단일반송파 전송시스템에 있어서, 입력된 데이터 스트림에 대한 비트 에러를 보정하는 에러보정부, 상기 에러보정부에 의해 보정된 상기 데이터 스트림을 복수의 영역으로 구분하는 영역구분부, 및 상기 영역구분부에 의해 구분된 상기 데이터 스트림의 사이에 상기 의사잡음열정보를 삽입하여 멀티플렉싱하는 먹스를 포함하는 것을 특징으로 한다. One according to the present invention for achieving the above object, a carrier wave transmission system, the transmitting side and receiving-side synchronization information of the pseudo noise sequence information for the synchronization of a single carrier transmission system for transmitting and then inserted into the transmission signal of the single carrier scheme according, a for correcting the bit error of the input data stream, error correction, the area that separates the data stream corrected by the error correction unit into a plurality of region dividing section, and divided by the region dividing section the data by inserting the PN sequence information between the stream and characterized in that it comprises a multiplexer for multiplexing. 상기 영역구분부는, 보정된 상기 데이터 스트림의 심볼의 갯수를 카운팅하는 카운터를 포함하며, 상기 영역구분부는 상기 카운터에 의한 카운팅값이 소정치에 달하면 상기 데이터 스트림을 구분한다. Said region dividing section includes a counter for counting the number of symbols of the correction the data stream, wherein the region dividing unit divides the data stream, the counting value of the counter reaches a predetermined value. 여기서, 상기 영역구분부는 상기 데이터 스트림을 네 개의 영역으로 구분한다. Here, the region dividing unit divides the data stream into four regions. 상기 먹스는 상기 영역구분부에 의해 구분된 상기 데이터 스트림의 사이에 설정된 갯수에 해당되는 상기 의사잡음열정보의 심볼을 삽입한다. The multiplexer then inserts the symbols of the PN sequence information corresponding to the number set in between the data streams separated by said region dividing section. 이 경우, 상기 먹스는 255개의 심볼을 가지는 상기 의사잡음열정보 한개와 256개의 심볼을 가지는 상기 의사잡음열정보 한개를 삽입한다. In this case, the multiplexer inserts said one pseudo-noise sequence information having the above-described pseudo noise information, one column with 256 symbols having a symbol 255. 또는, 상기 먹스는 255개의 심볼을 가지는 상기 의사잡음열정보 두개를 삽입한다. Alternatively, the multiplexer then inserts the pseudo-noise sequence information both with the 255 symbols. 이와 같은 단일반송파 전송시스템은, 중국향 단일반송파 방식의 CDTB-T 표준에 적용된다. Such single-carrier transmission system, China effort is applied to a single carrier scheme CDTB-T standard.

한편, 본 발명에 따른 단일반송파 전송시스템은, 송신측과 수신측의 동기를 위한 동기정보인 의사잡음열정보를 단일반송파 방식의 전송신호에 삽입하여 전송하는 단일반송파 전송방법에 있어서, 입력된 데이터 스트림에 대한 비트 에러를 보정하는 단계, 상기 에러보정부에 의해 보정된 상기 데이터 스트림을 소정 영역으로 구분하는 단계, 및 상기 영역구분부에 의해 구분된 상기 데이터 스트림의 사이에 상기 의사잡음열정보를 삽입하여 멀티플렉싱하는 단계를 포함하는 단일반송파 전송방법을 제공한다. On the other hand, a single carrier transmission system according to the present invention, in the synchronization information of the pseudo noise sequence information for the synchronization of the transmitting side and the receiving side in a single carrier transmission method for transmission by inserting the transmission signal of the single carrier scheme, the input data correcting the bit error of the stream, the method comprising separating the said data stream is corrected by the error correction in the predetermined area, and the pseudo-noise sequence information between the data streams separated by the region dividing section insert to provide a single carrier transmission method comprising the step of multiplexing.

이하, 첨부된 도면을 참조하여 본 발명을 보다 상세하게 설명한다. With reference to the accompanying drawings, it will be described the present invention in more detail.

도 5는 본 발명에 따른 디지털방송 전송시스템을 개략적으로 도시한 블록도이다. Figure 5 is a block diagram schematically showing a digital broadcasting transmission system according to the present invention. 도면을 참조하면, 디지털방송 전송시스템은, 스크램블러(100), FEC부(110), 영역구분부(120), 먹스(130), 파일럿 삽입부(140), 변조부(150), 및 RF 컨버터(160)를 구비한다. Referring to the drawings, a digital broadcast transmission system comprises a scrambler (100), FEC unit 110, a region dividing unit 120, a multiplexer 130, a pilot inserter 140, a modulator 150, and RF converter and a 160. 또한, FEC부(110)는 RS인코더(Reed-Solomon enconder)(111), 인터리버(interleaver)(113), 및 트렐리스 인코더(trellis encoder)(115)를 구비한다. In addition, the FEC unit 110 includes an RS encoder (Reed-Solomon enconder) (111), an interleaver (interleaver) (113), and a trellis encoder (trellis encoder) (115). 영역구분부(120)는 카운터(121)를 구비한다. Region dividing section 120 is provided with a counter 121.

도 6은 도 5에 의한 디지털방송 전송방법을 나타낸 흐름도이다. 6 is a flowchart illustrating a digital broadcasting transmitting method according to FIG. 도면을 참조하여 본 발명에 따른 단일반송파 전송시스템의 작용을 보다 상세하게 설명한다. The operation of a single carrier transmission system according to the present invention with reference to drawings will be described in detail.

스크램블러(100)는 동기식 데이터 전송에서 00000000b 또는 11111111b 등과 같이 같은 숫자가 반복되어 동기 신호를 상실하는 문제를 방지하기 위하여, 전송되는 데이터 신호를 랜덤화한다. The scrambler 100 is to prevent the problem that the number is repeated loss of the synchronization signal, such as such as 00000000b or 11111111b in a synchronous data transfer, it randomizes the data signal transmitted. 스크램블러(100)는 데이터 신호의 각 바이트 값을 소정의 패턴에 따라 바꾸며, 이 과정은 수신기에서 역으로 처리되어 정확한 값을 복원된다. Scrambler 100, changing the value of each byte of the data signal according to a desired pattern, the process is treated in the station at the receiver it is restored to the correct value.

FEC부(110)는 입력된 데이터 스트림에 대한 비트에러를 보정한다(S601). FEC unit 110 corrects the error bit on the input data stream (S601). 여기서, FEC부(110)에 구비된 RS인코더(Reed-Solomon enconder)(111), 인터리버(interleaver)(113), 및 트렐리스 인코더(115)는 ATSC 표준방식에 의한 디지털방송 전송시스템에 구비된 동일 요소와 동일한 동작을 수행하므로, 그 설명을 생략한다. Herein, the RS encoder (Reed-Solomon enconder) (111), an interleaver (interleaver) (113), and the trellis encoder 115 is provided to the FEC unit 110 is provided to the digital broadcasting transmission system according to the ATSC standard method It performs the same operation as that of the same elements, and description thereof is omitted.

영역구분부(120)는 FEC부(110)에 의해 보정된 데이터 스트림을 검색한다. Region dividing section 120 will search the data stream corrected by the FEC unit 110. 이때, 영역구분부(120)의 카운터(121)는 보정된 데이터 스트림의 심볼의 갯수를 카운팅한다(S603). At this time, the counter 121 in the region dividing section 120 counts the number of symbols of the corrected data stream (S603).

영역구분부(120)는 카운터(121)에 의한 카운팅값에 기초하여 데이터 스트림을 복수의 영역으로 구분한다(S605). Region dividing section 120 on the basis of the count value by the counter 121 separates the data stream into a plurality of regions (S605). 여기서, 영역구분부(120)는 구분된 데이터 스트림의 각 영역별로 기 설정된 설정치를 저장하고 있다. Here, the region dividing unit 120 and stores a predetermined set value for each region of the separated data stream. 영역구분부(120)는 카운터(121)에 의한 카운팅값과 저장된 설정치를 비교하며, 카운팅값이 설정치에 달하면, 그 시점에서 데이터 스트림을 구분짓는다. Region dividing section 120 compares the count value with a stored set value of the counter 121, the count value reaches a preset value, discriminates a data stream, at that point. CDTB-T 표준의 경우, 영역구분부(120)는 데이터 스트림을 네 개의 영역으로 구분짓도록 구현되는 것이 바람직하다. For CDTB-T standard, the region dividing section 120 is preferably implemented to nine minutes doing a data stream into four regions. 너무 잦은 의사잡음열의 정보는 전송되는 데이터의 흐름을 저해할 수 있기 때문에, 채널변화에 따른 동적환경의 변화와 데이터의 흐름을 모두 고려한 것이다. Too many pseudonoise column information, takes into account all changes in the flow of the data in the dynamic environment in accordance with a channel change because it can affect the flow of data to be transferred. 물론, 구분되는 데이터 스트림의 갯수는 달리 설정될 수도 있다. Of course, the number of data streams that are separated may be set otherwise.

PN정보발생부(도시하지 않음)는 송신측과 수신측의 동기를 위한 동기정보인 의사잡음열정보를 발생시키며, 발생된 의사잡음열정보를 먹스(130)에 전송한다. PN information generation unit (not shown) transmits a transmission-side and receiving-side synchronization information of the pseudo noise information, generates a heat, and the generated pseudo-noise sequence information for synchronization of the multiplexer 130. 여기서, 송신측은 단일반송파 방식으로 디지털방송을 송신하는 디지털방송 전송시스템을 구비한 송신측을 말하며, 수신측은 단일반송파 방식으로 송신된 디지털방송을 수신하는 수신측을 말한다. Here, the transmitting end refers to a transmission side provided with a digital broadcast transmission system for transmitting a digital broadcast by a single carrier scheme, the receiving side refers to the receiving side for receiving a digital broadcast transmitted by a single carrier scheme.

PN정보발생부에 의해 발생되는 의사잡음정보열은 255, 256, 511, 1023, 2047, 8191 등의 다양한 갯수의 심볼로 구현될 수 있다. Pseudo noise information, the heat generated by the PN information generation unit may be implemented in a number of different symbols, such as 255, 256, 511, 1023, 2047, 8191.

도 7은 도 5에 의한 전송신호의 프레임 구조를 도시한 도면이다. 7 is a diagram illustrating a frame structure of a transmission signal according to Fig. 도면은 CDTB-T의 프레임 구조에 대응된 프레임 구조를 나타낸다. Diagram shows a frame structure corresponding to the frame structure of CDTB-T. CDTB-T 표준의 경우, 먹스(130)는 구분된 데이터 스트림의 사이에 255개의 심볼을 가지는 의사잡음열정보 한개와 256개의 심볼을 가지는 의사잡음열정보 한개를 삽입하도록 구현될 수 있다.이것은 CDTB-T 표준이 511개의 심볼단위로 의사잡음열정보를 삽입하는 것을 고려한 수치이다. For CDTB-T standard, the mux 130 may be implemented to insert having having 255 symbols between the separated data streams pseudo noise sequence information one with 256 symbol PN sequence information one which CDTB -T is the standard value considering inserting a pseudo-noise sequence information 511 in a symbol unit. 또한, 먹스(130)는 구분된 데이터 스트림의 사이에 255개의 심볼을 가지는 의사잡음열정보 두 개를 삽입하도록 구현될 수 있다. In addition, mux 130 may be implemented to insert the two pseudo noise sequence information having 255 symbols in between the separated data stream. 이 경우, 전송신호의 프레임에서 패이로드의 크기는 CDTB-T 표준에 따른 프레임의 패이로드의 크기보다 3심볼 만큼 증가하게 된다. In this case, the size of the payload in the frame of the transmission signal is increased by 3 symbols than the size of the payload of the frame according to the CDTB-T standard.

여기서, 영역구분부(120)는 511개의 심볼을 가지는 의사잡음열정보가 입력되는 하나의 데이터 스트림에 대하여 적어도 세번에 걸쳐 삽입되도록 데이터 스트림의 영역을 구분하는 것이 바람직하다. Here, the region dividing section 120, it is desirable to separate the region of the data stream so that the insert over at least three times for a single data stream is pseudo-noise sequence information having 511 input symbols.

트렐리스 인코더(115)에 의한 트렐리스 코딩 후, 먹스(130)는 전송신호의 선두부에 세그먼트 싱크를 삽입한다. Bit after the trellis encoding by the trellis encoder 115, the multiplexer 130 inserts a segment sync at the beginning portion of the transmission signal. 또한, 먹스(130)는 영역구분부(120)에 의해 구분된 데이터 스트림의 사이사이에 PN정보발생부에 의해 발생된 의사잡음열정보를 삽입한다(S607). Further, MUX 130 inserts a pseudo-noise PN sequence information generated by the information generating section between between the data streams separated by the region dividing section (120) (S607). 먹스(130)가 데이터 스트림에 프레임 싱크를 삽입하는 경우, PN정보발생부에 의해 발생된 의사잡음열정보, 컨트롤 비트, 및 여유비트를 결합하여 전송신호의 선두에 삽입한다. When MUX 130 inserts a frame sync in the data stream, it combines the PN sequence information, and control bits, and margin bits generated by a PN generation section information is inserted at the head of the transmission signal. 여기서, 처음에 입력된 데이터 스트림의 전체개념과 복수의 영역으로 구분된 데이터 스트림을 구분하기 위하여 전송신호 및 데이터 스트림의 두 가지 용어를 사용하였다. Here, the two terms of the transmission signal and a data stream was used to separate the data stream divided into a total concept and a plurality of regions of the data stream input to the first.

파일럿 삽입부(140)는 세그먼트 싱크, 프레임 싱크, 및 의사잡음열정보가 삽입된 전송신호에 파일럿(PILOT)을 삽입한다. The pilot insertion unit 140 inserts the pilots (PILOT) in the transmitted signal segment sync, frame sync, and a pseudo-noise sequence information is inserted. 여기서, 파일럿은 변조된 스펙트럼의 제로 주파수 포인트에 나타나는 잔류 반송파를 말한다. Here, the pilot means a residual carrier frequency that appears in a zero point of the modulation spectrum.

변조부(150)는 파일럿 삽입부(140)로부터 수신된 전송신호를 변조방식을 사용하여 변조시킨다. Modulator 150 modulates using the method modulates the transmission signal received from the pilot inserter 140. RF컨버터(160)는 변조된 전송신호를 RF(Radio Frequency : 무선 주파수)변환시키며, 변환된 전송신호를 안테나를 통해 송출한다. RF converter 160 is a modulated signal transmitted RF: sikimyeo conversion (Radio Frequency RF), and transmits the converted transmission signal through an antenna.

이로써, 단일반송파 전송시스템은 채널이 자주 변화됨으로써 동적 환경이 변화되는 상황에 용이하게 적응할 수 있게 된다. Thus, by being a single carrier transmission system, the channel is frequently changed it is possible to easily adapt to the situation in which dynamic changes in the environment.

본 발명에 따른 단일반송파 전송시스템은 채널이 자주 변화되어 동적 환경이 변화되는 상황에 용이하게 적응할 수 있게 된다. A single carrier transmission system according to the invention is able to adapt easily to the situation in which the channel is changed frequently, dynamic changes in the environment.

이상에서는 본 발명의 바람직한 실시예에 대해서 도시하고 설명하였으나, 본 발명은 상술한 특정의 실시예에 한정되지 아니하며, 청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 당해 발명이 속하는 기술분야에서 통상의 지식을 가진 자라면 누구든지 다양한 변형 실시가 가능한 것은 물론이고, 그와 같은 변경은 청구범위 기재의 범위 내에 있게 된다. Above] Although illustrated and described a preferred embodiment of the invention, the invention is not limited to the embodiments of the described, conventional in the art the art without departing from the subject matter of the present invention invention claimed in the claims If the party with the knowledge and not to can be readily applied to other types of embodiment, of course, that such changes are within the scope of the claims described.

Claims (16)

  1. 송신측과 수신측의 동기를 위한 동기정보인 의사잡음열정보를 단일반송파 방식의 전송신호에 삽입하여 전송하는 단일반송파 전송시스템에 있어서, In the synchronization information of the pseudo noise sequence information for the synchronization of the transmitting side and the receiving side in a single carrier transmission system for transmission by inserting the transmission signal of the single carrier scheme,
    입력된 데이터 스트림에 대한 비트 에러를 보정하는 에러보정부; Error correction unit for correcting a bit error of the input data stream;
    상기 에러보정부에 의해 보정된 상기 데이터 스트림을 복수의 영역으로 구분하는 영역구분부; Region dividing section which separates the data stream corrected by the error correction unit into a plurality of areas; And
    상기 영역구분부에 의해 구분된 상기 데이터 스트림의 사이에 상기 의사잡음열정보를 삽입하여 멀티플렉싱하는 먹스;를 포함하는 것을 특징으로 하는 단일반송파 전송시스템. A single carrier transmission system comprising: a; between the data streams separated by the region dividing section MUX for multiplexing to insert the pseudo-noise sequence information.
  2. 제 1항에 있어서, 상기 영역구분부는, According to claim 1, wherein said region dividing section,
    보정된 상기 데이터 스트림의 심볼의 갯수를 카운팅하는 카운터를 포함하며, And a counter for counting the number of symbols of the correction the data stream,
    상기 영역구분부는 상기 카운터에 의한 카운팅값이 소정치에 달하면 상기 데이터 스트림을 구분하는 것을 특징으로 하는 단일반송파 전송시스템. The region dividing section a single carrier transmission system, characterized in that the count value by the counter distinguish the data stream reaches a predetermined value.
  3. 제 2항에 있어서, 3. The method of claim 2,
    상기 영역구분부는 상기 데이터 스트림을 네 개의 영역으로 구분하는 것을 특징으로 하는 단일반송파 전송시스템. The region dividing section a single carrier transmission system, characterized in that to separate the data stream into four regions.
  4. 제 3항에 있어서, 4. The method of claim 3,
    상기 먹스는 상기 영역구분부에 의해 구분된 상기 데이터 스트림의 사이에 설정된 갯수에 해당되는 상기 의사잡음열정보의 심볼을 삽입하는 것을 특징으로 하는 단일반송파 전송시스템. The multiplexer is a single carrier transmission system, characterized in that for inserting the symbols of the PN sequence information corresponding to the number set in between the data streams separated by said region dividing section.
  5. 제 3항에 있어서, 4. The method of claim 3,
    상기 먹스는 255개의 심볼을 가지는 상기 의사잡음열정보 한개와 256개의 심볼을 가지는 상기 의사잡음열정보 한개를 삽입하는 것을 특징으로 하는 단일반송파 전송시스템. The multiplexer is a single carrier transmission system, characterized in that inserting the PN sequence information one with the pseudo-noise sequence information and one symbol 256 with 255 symbols.
  6. 제 3항에 있어서, 4. The method of claim 3,
    상기 먹스는 255개의 심볼을 가지는 상기 의사잡음열정보 두개를 삽입하는 것을 특징으로 하는 단일반송파 전송시스템. The multiplexer is a single carrier transmission system, characterized in that inserting the PN sequence information both with 255 symbols.
  7. 제 3항 내지 제 6항의 어느 한 항에 있어서, 4. The method of claim 3 to claim 6 any one of the preceding,
    상기 에러보정부, 상기 영역구분부, 및 상기 먹스는 중국향 단일반송파 방식의 CDTB-T 표준에 적용가능한 것을 특징으로 하는 단일반송파 전송시스템. The error correction section, the region dividing section, and the multiplexer is a single carrier transmission system, characterized in that applicable to CDTB-T standard in China effort single carrier scheme.
  8. 제 7항에 있어서, The method of claim 7,
    상기 영역구분부는, 511개의 심볼을 가지는 상기 의사잡음열정보가 입력된 상기 데이터 스트림에 대하여 적어도 세 번에 걸쳐 삽입되도록 상기 데이터 스트림의 영역을 구분하는 것을 특징으로 하는 단일반송파 전송시스템. It said region dividing section, to be inserted over the at least three times, with respect to the data streams of the pseudo-noise sequence information is entered with 511 symbols, a single carrier transmission system, characterized in that to separate the region of the data stream.
  9. 송신측과 수신측의 동기를 위한 동기정보인 의사잡음열정보를 단일반송파 방식의 전송신호에 삽입하여 전송하는 단일반송파 전송방법에 있어서, In the synchronization information of the pseudo noise sequence information for the synchronization of the transmitting side and the receiving side in a single carrier transmission method for transmission by inserting the transmission signal of the single carrier scheme,
    입력된 데이터 스트림에 대한 비트 에러를 보정하는 단계; Correcting the bit error of the input data stream;
    상기 에러보정단계에 의해 보정된 상기 데이터 스트림을 복수의 영역으로 구분하는 단계; Step to separate the data stream corrected by said error correcting step into a plurality of areas; And
    상기 영역구분단계에 의해 구분된 상기 데이터 스트림의 사이에 상기 의사잡음열정보를 삽입하여 멀티플렉싱하는 단계;를 포함하는 것을 특징으로 하는 단일반송파 전송방법. Single-carrier transmission method comprising the; between the data streams separated by the region dividing step of multiplexing step inserts the pseudo-noise sequence information.
  10. 제 9항에 있어서, 10. The method of claim 9,
    보정된 상기 데이터 스트림의 심볼의 갯수를 카운팅하는 단계를 포함하며, Comprising the step of counting the number of symbols of the correction the data stream,
    상기 영역구분단계는 상기 카운팅단계에 의한 카운팅값이 소정치에 달하면 상기 데이터 스트림을 구분하는 것을 특징으로 하는 단일반송파 전송방법. The region dividing step is a single carrier transmission method is characterized in that a count value by the counting step separates the data stream reaches a predetermined value.
  11. 제 10항에 있어서, 11. The method of claim 10,
    상기 영역구분단계는 상기 데이터 스트림을 네 개의 영역으로 구분하는 것을 특징으로 하는 단일반송파 전송방법. The region dividing step is a single carrier transmission method, characterized in that to separate the data stream into four regions.
  12. 제 11항에 있어서, 12. The method of claim 11,
    상기 멀티플렉싱단계는 상기 영역구분단계에 의해 구분된 상기 데이터 스트림의 사이에 설정된 갯수에 해당되는 상기 의사잡음열정보의 심볼을 삽입하는 것을 특징으로 하는 단일반송파 전송방법. The multiplexing step is a single carrier transmission method, wherein inserting the symbols of the PN sequence information corresponding to the number set in between the data streams separated by the region dividing step.
  13. 제 11항에 있어서, 12. The method of claim 11,
    상기 멀티플렉싱단계는 255개의 심볼을 가지는 상기 의사잡음열정보 한개와256개의 심볼을 가지는 상기 의사잡음열정보 한개를 삽입하는 것을 특징으로 하는 단일반송파 전송방법. The multiplexing step is a single carrier transmission method, wherein inserting said one pseudo-noise sequence information having the pseudo-noise sequence information and one symbol 256 with 255 symbols.
  14. 제 11항에 있어서, 12. The method of claim 11,
    상기 멀티플렉싱단계는 255개의 심볼을 가지는 상기 의사잡음열정보 두개를 삽입하는 것을 특징으로 하는 단일반송파 전송방법. The multiplexing step is a single carrier transmission method, wherein inserting the PN sequence information both with 255 symbols.
  15. 제 11항 내지 제 14항의 어느 한 항에 있어서, Of claim 11 to claim 14 according to any of the preceding,
    상기 에러보정단계, 상기 영역구분단계, 및 상기 멀티플렉싱단계는 중국향 단일반송파 방식의 CDTB-T 표준에 적용가능한 것을 특징으로 하는 단일반송파 전송방법. Wherein the error correction step, the region dividing step, and the multiplexing step is a single carrier transmission method, characterized in that applicable to CDTB-T standard in China effort single carrier scheme.
  16. 제 15항에 있어서, 16. The method of claim 15,
    상기 영역구분단계는, 511개의 심볼을 가지는 상기 의사잡음열정보가 입력된 상기 데이터 스트림에 대하여 적어도 세 번에 걸쳐 삽입되도록 상기 데이터 스트림의 영역을 구분하는 것을 특징으로 하는 단일반송파 전송방법. The region dividing step, a single carrier transmission method, characterized in that to separate the region of the data stream so that the insert over at least three times, with respect to the data streams of the pseudo-noise sequence information is entered with 511 symbols.
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CN1905545A (en) 2007-01-31
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KR100920723B1 (en) 2009-10-07
CN1299481C (en) 2007-02-07

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