KR930703758A - 디지털 데이터 송수신 시스템과 이 시스템에 사용하기 위한 수신기 및 송신기 - Google Patents
디지털 데이터 송수신 시스템과 이 시스템에 사용하기 위한 수신기 및 송신기Info
- Publication number
- KR930703758A KR930703758A KR1019930702584A KR930702584A KR930703758A KR 930703758 A KR930703758 A KR 930703758A KR 1019930702584 A KR1019930702584 A KR 1019930702584A KR 930702584 A KR930702584 A KR 930702584A KR 930703758 A KR930703758 A KR 930703758A
- Authority
- KR
- South Korea
- Prior art keywords
- frequency
- carrier
- peak position
- signal
- receiver
- Prior art date
Links
- 230000005540 biological transmission Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 238000009795 derivation Methods 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2647—Arrangements specific to the receiver only
- H04L27/2655—Synchronisation arrangements
- H04L27/2657—Carrier synchronisation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J4/00—Combined time-division and frequency-division multiplex systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2626—Arrangements specific to the transmitter only
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2647—Arrangements specific to the receiver only
- H04L27/2655—Synchronisation arrangements
- H04L27/2668—Details of algorithms
- H04L27/2673—Details of algorithms characterised by synchronisation parameters
- H04L27/2675—Pilot or known symbols
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2602—Signal structure
- H04L27/261—Details of reference signals
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Circuits Of Receivers In General (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Radar Systems Or Details Thereof (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
- Time-Division Multiplex Systems (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
Description
Claims (9)
- 프레임으로 집단화된 시분할 다중 채널내의 디지탈 데이타를 송신하고 수신하되, 상기 각 프레임이 다중 캐리어 심벌을 포함하고, 상기 다중 캐리어 심벌이 데이타 심벌 및 시스템 심벌을 포함하며, 상기 각각의 심벌은 캐리어 간격이 일정한 주파수 래스터내 캐리어 위치들의 직교 주파수 분할 다중 캐리어 세트를 포함하는, 디지탈 데이타 송수신 시스템에 있어서, 상기 시스템은 주파수 기준 심벌을 포함하고, 상기 각 주파수 기준심벌은 상기 주파수 래스터의 각 가장자리로부터 최소한 하나의 주파수 위치만큼 또한 후속하는 기준 피크 위치로부터 최소한 두개의 캐리어 위치만큼 분리되는 상기 주파수 래스터내의 최소한 하나의 기준 피크 위치에서 피크치을 발생하는 정보를 나르는 것을 특징으로 하는 디지탈 데이타 송수신 시스템.
- 제1항에 있어서, 상기 각 심벌은, 가상 캐리어 및/또는 데이타 캐리어를 상기 주파수 래스터내 캐리어 위치에 포함하고, 상기 가상 캐리어는 신호 전력을 가지지 않으며 상기 각 주파수 기준 심벌은 기준 피크 위치에 피크 신호 전력 레벨을 가징 데이타 캐리어를 포함하고 상기 각 데이타 캐리어는 상기 주파수 래스터의 각 가장자리로부터 최소한 하나의 가상 캐리어만큼 또한 후속하는 기준 피크 위치의 데이타 캐리어로부터 최소한 두개의 가상 캐리어만큼 분리되는 것을 특징으로 하는 시스템.
- 제1항 또는 제2항의 시스템에 사용하기 위한 수신기에 있어서, 수신된 주파수 기준 심벌의 주파수 래스터내에 있는 각 피크치의 주파수 위치를 검출하기 위한 수단과, 상기 피크치의 주파수 위치와 초기기준피크 위치 사이의 주파수 차이로부터 제1자동 주파수제어(AFC) 신호를 도출해 내는 수단과, 상기 제1AFC 신호에 응답하여 상기 주파수 차이의 감소를 위한 주파수 제어 수단을 포함하는 것을 특징으로 하는 수신기.
- 제1항 또는 제2항의 시스템에 사용하기 위한 수신기에 있어서, 피크 위치에서의 인접한 두 캐리어 위치에서 발생하는 누설성분들의 비율을 판단하기 위한 수단과, 상기 비율로부터 상기 비율에 따라 변화하는 제2AFC 신호를 도출해 내는 수단과, 상기 제2AFC 신호에 응답하여 상기 비율과 단위값간의 차이를 감소시키기 위한 주파수 제어수단을 포함하는 것을 특징으로 하는 수신기.
- 제2항의 시스템에 사용하기 위한 제4항의 시스템에 있어서, 상기 제2AFC 신호가 피크 위치의 두 인접한 캐리어 위치에서 발생하는 캐리어 누설 성분들의 전력비율에 따라 변화하는 것을 특징으로 하는 수신기.
- 제5항에 있어서, 상기 기준 피크 위치쪽으로 상기 캐리어 누설 성분들의 전력을 증강시키기 위한 상기 주파수 기준 심벌의 윈도우 신호 처리를 특징으로 하는 수신기.
- 제6항에 있어서, 상기 수신된 주파수 기준 심벌의 해닝 윈도우 신호 처리를 특징으로 하는 수신기.
- 제1항의 시스템에 사용하기 위한 송신기에 있어서, 상기 주파수 기준 심벌의 발생을 위한 신호발생기를 포함하는 것을 특징으로 하는 송신기.
- 제8항에 있어서, 상기 신호 발생기는 피크 신호 전력 레벨을 가진 데이타 캐리어를 각 기준 피크 위치에서 각 주파수 기준 심벌내에 발생하기 위한 수단을 포함하고, 상기 각 데이타 캐리어는 주파수 래스터의 각 가장자리로부터 최소한 하나의 가상 캐리어만큼 또한 후속하는 기준 피크 위치의 데이타 캐리어로부터 최소한 두개의 가상 캐리어만큼 분리되는 것을 특징으로 하는 송신기.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB919104241A GB9104241D0 (en) | 1991-02-28 | 1991-02-28 | System for broadcasting and receiving digital data,receiver and transmitter for use in such a system |
GB9104241.6 | 1991-02-28 | ||
GB69104241.6 | 1991-02-28 | ||
PCT/NL1992/000039 WO1992016063A1 (en) | 1991-02-28 | 1992-02-27 | System for broadcasting and receiving digital data, receiver and transmitter for use in such system |
Publications (2)
Publication Number | Publication Date |
---|---|
KR930703758A true KR930703758A (ko) | 1993-11-30 |
KR100242400B1 KR100242400B1 (ko) | 2000-02-01 |
Family
ID=10690752
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019930702584A KR100242400B1 (ko) | 1991-02-28 | 1992-02-27 | 디지털 데이터 송수신 시스템과 이 시스템에 사용하는 수신기 및 송신기 |
Country Status (14)
Country | Link |
---|---|
US (1) | US5550812A (ko) |
EP (1) | EP0573541B1 (ko) |
JP (1) | JP3043415B2 (ko) |
KR (1) | KR100242400B1 (ko) |
AT (1) | ATE147562T1 (ko) |
AU (1) | AU660965B2 (ko) |
CA (1) | CA2101248C (ko) |
DE (1) | DE69216591T2 (ko) |
DK (1) | DK0573541T3 (ko) |
ES (1) | ES2099250T3 (ko) |
FI (1) | FI113117B (ko) |
GB (1) | GB9104241D0 (ko) |
SG (1) | SG44771A1 (ko) |
WO (1) | WO1992016063A1 (ko) |
Cited By (1)
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EP2290893A1 (en) * | 2009-08-24 | 2011-03-02 | Nxp B.V. | Frequency Synchronization in OFDM Receiver using sliding Fourier Transform |
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US4199809A (en) * | 1976-04-05 | 1980-04-22 | The United States Of America As Represented By The Secretary Of The Navy | Programmable data terminal set |
US4301530A (en) * | 1978-12-18 | 1981-11-17 | The United States Of America As Represented By The Secretary Of The Army | Orthogonal spread spectrum time division multiple accessing mobile subscriber access system |
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CA1210877A (en) * | 1983-08-04 | 1986-09-02 | Nec Corporation | Method of synchronizing parallel channels of orthogonally multiplexed parallel data transmission system and improved automatic equalizer for use in such a transmission system |
US4881241A (en) * | 1988-02-24 | 1989-11-14 | Centre National D'etudes Des Telecommunications | Method and installation for digital communication, particularly between and toward moving vehicles |
US5191576A (en) * | 1988-11-18 | 1993-03-02 | L'Etat Francais and Telediffusion de France S.A. | Method for broadcasting of digital data, notably for radio broadcasting at high throughput rate towards mobile receivers, with time frequency interlacing and analog synchronization |
US5048054A (en) * | 1989-05-12 | 1991-09-10 | Codex Corporation | Line probing modem |
FR2658017B1 (fr) * | 1990-02-06 | 1992-06-05 | France Etat | Procede de diffusion de donnees numeriques, notamment pour la radiodiffusion a haut debit vers des mobiles, a entrelacement temps-frequence et aide a l'acquisition de la commande automatique de frequence, et recepteur correspondant. |
FR2658016B1 (fr) * | 1990-02-06 | 1994-01-21 | Etat Francais Cnet | Procede de diffusion de donnees numeriques, notamment pour la radiodiffusion a haut debit vers des mobiles, a entrelacement temps-frequence et demodulation coherente, et recepteur correspondant. |
US5170413A (en) * | 1990-12-24 | 1992-12-08 | Motorola, Inc. | Control strategy for reuse system assignments and handoff |
FR2671923B1 (fr) * | 1991-01-17 | 1993-04-16 | France Etat | Dispositif de demodulation coherente de donnees numeriques entrelacees en temps et en frequence, a estimation de la reponse frequentielle du canal de transmission et seuillage, et emetteur correspondant. |
-
1991
- 1991-02-27 SG SG1996007291A patent/SG44771A1/en unknown
- 1991-02-28 GB GB919104241A patent/GB9104241D0/en active Pending
-
1992
- 1992-02-27 AU AU13790/92A patent/AU660965B2/en not_active Expired
- 1992-02-27 AT AT92906585T patent/ATE147562T1/de active
- 1992-02-27 DK DK92906585.2T patent/DK0573541T3/da active
- 1992-02-27 ES ES92906585T patent/ES2099250T3/es not_active Expired - Lifetime
- 1992-02-27 EP EP92906585A patent/EP0573541B1/en not_active Expired - Lifetime
- 1992-02-27 KR KR1019930702584A patent/KR100242400B1/ko not_active IP Right Cessation
- 1992-02-27 CA CA002101248A patent/CA2101248C/en not_active Expired - Lifetime
- 1992-02-27 DE DE69216591T patent/DE69216591T2/de not_active Expired - Lifetime
- 1992-02-27 US US08/108,560 patent/US5550812A/en not_active Expired - Lifetime
- 1992-02-27 JP JP4506094A patent/JP3043415B2/ja not_active Expired - Lifetime
- 1992-02-27 WO PCT/NL1992/000039 patent/WO1992016063A1/en active IP Right Grant
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1993
- 1993-08-27 FI FI933776A patent/FI113117B/fi not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100429837B1 (ko) * | 1999-09-22 | 2004-05-03 | 삼성전자주식회사 | 직교주파수 분할 다중화 신호의 동기화 방법 및 그 장치 |
Also Published As
Publication number | Publication date |
---|---|
JP3043415B2 (ja) | 2000-05-22 |
FI933776A (fi) | 1993-08-27 |
FI113117B (fi) | 2004-02-27 |
DE69216591D1 (de) | 1997-02-20 |
ATE147562T1 (de) | 1997-01-15 |
US5550812A (en) | 1996-08-27 |
FI933776A0 (fi) | 1993-08-27 |
ES2099250T3 (es) | 1997-05-16 |
WO1992016063A1 (en) | 1992-09-17 |
KR100242400B1 (ko) | 2000-02-01 |
JPH06505377A (ja) | 1994-06-16 |
GB9104241D0 (en) | 1991-04-17 |
AU1379092A (en) | 1992-10-06 |
AU660965B2 (en) | 1995-07-13 |
EP0573541B1 (en) | 1997-01-08 |
DK0573541T3 (da) | 1997-06-16 |
DE69216591T2 (de) | 1997-07-10 |
CA2101248C (en) | 1998-07-28 |
SG44771A1 (en) | 1997-12-19 |
EP0573541A1 (en) | 1993-12-15 |
CA2101248A1 (en) | 1992-08-29 |
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