KR20010112656A - 직교주파수분할 다중 변복조 회로 - Google Patents
직교주파수분할 다중 변복조 회로 Download PDFInfo
- Publication number
- KR20010112656A KR20010112656A KR1020010033186A KR20010033186A KR20010112656A KR 20010112656 A KR20010112656 A KR 20010112656A KR 1020010033186 A KR1020010033186 A KR 1020010033186A KR 20010033186 A KR20010033186 A KR 20010033186A KR 20010112656 A KR20010112656 A KR 20010112656A
- Authority
- KR
- South Korea
- Prior art keywords
- signal
- frequency division
- modulation
- orthogonal frequency
- parallel
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
- H04L5/0046—Determination of how many bits are transmitted on different sub-channels
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
- H04L27/183—Multiresolution 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
- H04L27/2602—Signal structure
- H04L27/2604—Multiresolution systems
-
- 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
- H04L27/3488—Multiresolution systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0058—Allocation criteria
- H04L5/006—Quality of the received signal, e.g. BER, SNR, water filling
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0058—Allocation criteria
- H04L5/0064—Rate requirement of the data, e.g. scalable bandwidth, data priority
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/02—Channels characterised by the type of signal
- H04L5/06—Channels characterised by the type of signal the signals being represented by different frequencies
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
Abstract
Description
Claims (11)
- 통신을 위하여 복수의 서브캐리어를 사용하고 복수의 통신채널을 송수신하는 직교주파수분할 다중 변복조 회로에 있어서,상기 복수의 서브캐리어가 분할되는 복수의 서브캐리어 그룹 각각을 상기 복수의 통신채널 각각에 할당하는 것을 특징으로 하는 직교주파수분할 다중 변복조 회로.
- 제 1 항에 있어서,상기 서브캐리어 그룹을 상기 통신채널 각각에 할당하는 것이 적응적으로 수행되는 것을 특징으로 하는 직교주파수분할 다중 변복조 회로.
- 제 1 항에 있어서,상기 서브캐리어 그룹 각각에 주어진 변조시스템이 대응하는 통신채널에 필요한 QoS 에 따라서 변화하는 것을 특징으로 하는 직교주파수분할 다중 변복조 회로.
- 제 1 항에 있어서,상기 서브캐리어 각각의 주파수축상의 정렬을 랜덤화하는 수단을 송신측에 포함하고, 상기 정렬을 디랜덤화하는 수단을 수신측에 포함하는 것을 특징으로 하는 직교주파수분할 다중 변복조 회로.
- 제 2 항에 있어서,필요에 따라 모든 서브캐리어가 단일의 채널에 할당되고, 한편 다른 채널의 통신은 정지하는 것을 특징으로 하는 직교주파수분할 다중 변복조 회로.
- 제 3 항에 있어서,상기 변화가능한 변조시스템이 BPSK, QPSK, 및 QAM 중 적어도 하나를 사용하고, 상기 QoS 에 따라서 위상평면상의 심볼 포인트가 변화하는 것을 특징으로 하는 직교주파수분할 다중 변복조 회로.
- 제 3 항에 있어서,변조심볼들의 피크치들은 상기 서브캐리어 각각의 송신전력이 상기 변조시스템에 무관하게 동일하게 되도록 결정되는 것을 특징으로 하는 직교주파수분할 다중 변복조 회로.
- 제 4 항에 있어서,상기 서브캐리어 각각의 위치를 랜덤화하는 처리가 심볼마다 갱신되는 것을 특징으로 하는 직교주파수분할 다중 변복조 회로.
- 제 8 항에 있어서,심볼마다 랜덤화 패턴을 결정하고 상기 수신측에 송신하는 수단을 상기 송신측에 포함하고, 상기 랜덤화 패턴의 송신과 수신을 동기화시키는 수단을 포함하는 것을 특징으로 하는 직교주파수분할 다중 변복조 회로.
- 제 9 항에 있어서,상기 랜덤화 패턴의 송신과 수신을 동기화하기 위한 수단으로서 소정의 통신채널과 그에 대응하는 서브캐리어가 할당되는 것을 특징으로 하는 직교주파수분할 다중 변복조 회로.
- 제 10 항에 있어서,상기 소정의 통신채널과 그에 대응하는 상기 서브캐리어가 상기 랜덤화 처리로부터 제외되고 있는 것을 특징으로 하는 직교주파수분할 다중 변복조 회로.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000177711A JP2001358692A (ja) | 2000-06-14 | 2000-06-14 | 直交周波数分割多重変復調回路 |
JP2000-177711 | 2000-06-14 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20010112656A true KR20010112656A (ko) | 2001-12-20 |
KR100437306B1 KR100437306B1 (ko) | 2004-06-25 |
Family
ID=18679260
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR10-2001-0033186A KR100437306B1 (ko) | 2000-06-14 | 2001-06-13 | 직교주파수분할 다중 변복조 회로 |
Country Status (6)
Country | Link |
---|---|
US (3) | US7099268B2 (ko) |
EP (2) | EP1773015B1 (ko) |
JP (1) | JP2001358692A (ko) |
KR (1) | KR100437306B1 (ko) |
CN (2) | CN1855908B (ko) |
DE (1) | DE60129884T2 (ko) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20030094909A (ko) * | 2002-06-10 | 2003-12-18 | 삼성전자주식회사 | 시간영역동기 오에프디엠 송신기를 이용한디지털방송신호의 오에프디엠 다중 반송파 변조방법 |
KR100901692B1 (ko) * | 2007-03-27 | 2009-06-08 | 한국전자통신연구원 | 저속 무선 개인 통신 네트워크에서 다중모드 송수신 장치및 그 방법 |
KR101227245B1 (ko) * | 2006-04-07 | 2013-01-28 | 재단법인서울대학교산학협력재단 | 빔 포밍-다중 입력 다중 출력/직교 주파수 분할 다중화통신 시스템에서 신호 송수신 장치 및 방법 |
Families Citing this family (57)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8670390B2 (en) | 2000-11-22 | 2014-03-11 | Genghiscomm Holdings, LLC | Cooperative beam-forming in wireless networks |
US10355720B2 (en) | 2001-04-26 | 2019-07-16 | Genghiscomm Holdings, LLC | Distributed software-defined radio |
US10931338B2 (en) | 2001-04-26 | 2021-02-23 | Genghiscomm Holdings, LLC | Coordinated multipoint systems |
US9819449B2 (en) | 2002-05-14 | 2017-11-14 | Genghiscomm Holdings, LLC | Cooperative subspace demultiplexing in content delivery networks |
FR2825861A1 (fr) * | 2001-06-06 | 2002-12-13 | St Microelectronics Sa | Allocation de frequences en modulation multiporteuses orthogonales |
US20040218521A1 (en) * | 2001-08-01 | 2004-11-04 | Edgar Bolinth | Method for data communication between a single-carrier system and a multi-carrier system |
US7012883B2 (en) * | 2001-11-21 | 2006-03-14 | Qualcomm Incorporated | Rate selection for an OFDM system |
JP3548162B2 (ja) * | 2002-02-15 | 2004-07-28 | 松下電器産業株式会社 | 送信装置 |
JP3963737B2 (ja) * | 2002-02-28 | 2007-08-22 | 松下電器産業株式会社 | マルチキャリア信号生成方法、無線送信装置および無線受信装置 |
US10200227B2 (en) | 2002-05-14 | 2019-02-05 | Genghiscomm Holdings, LLC | Pre-coding in multi-user MIMO |
US10644916B1 (en) | 2002-05-14 | 2020-05-05 | Genghiscomm Holdings, LLC | Spreading and precoding in OFDM |
US10142082B1 (en) | 2002-05-14 | 2018-11-27 | Genghiscomm Holdings, LLC | Pre-coding in OFDM |
US9628231B2 (en) | 2002-05-14 | 2017-04-18 | Genghiscomm Holdings, LLC | Spreading and precoding in OFDM |
KR100478539B1 (ko) * | 2002-07-11 | 2005-03-24 | 김정환 | 통신망을 이용한 모니터링 서비스 방법 |
WO2004008671A1 (ja) | 2002-07-16 | 2004-01-22 | Matsushita Electric Industrial Co., Ltd. | 通信方法およびそれを用いた送信装置と受信装置 |
GB2391431A (en) * | 2002-07-30 | 2004-02-04 | Fujitsu Ltd | Adaptive modulation and coding method |
KR100552680B1 (ko) * | 2003-02-17 | 2006-02-20 | 삼성전자주식회사 | 다중 안테나 ofdm 통신 시스템에서의 papr 저감방법 및 이를 사용하는 다중 안테나 ofdm 통신 시스템 |
US7394858B2 (en) * | 2003-08-08 | 2008-07-01 | Intel Corporation | Systems and methods for adaptive bit loading in a multiple antenna orthogonal frequency division multiplexed communication system |
KR100539925B1 (ko) * | 2003-08-22 | 2005-12-28 | 삼성전자주식회사 | 직교주파수분할다중 시스템에서 부반송파 할당 장치 및 방법 |
KR100876757B1 (ko) | 2003-10-31 | 2009-01-07 | 삼성전자주식회사 | 통신 시스템에서 서브 채널 구성 시스템 및 방법 |
US8204149B2 (en) | 2003-12-17 | 2012-06-19 | Qualcomm Incorporated | Spatial spreading in a multi-antenna communication system |
US7336746B2 (en) | 2004-12-09 | 2008-02-26 | Qualcomm Incorporated | Data transmission with spatial spreading in a MIMO communication system |
US8169889B2 (en) | 2004-02-18 | 2012-05-01 | Qualcomm Incorporated | Transmit diversity and spatial spreading for an OFDM-based multi-antenna communication system |
KR100842588B1 (ko) | 2004-03-12 | 2008-07-01 | 삼성전자주식회사 | 다중 반송파 전송 방식을 사용하는 광대역 무선 통신시스템의 부반송파 할당 방법 및 장치 |
US8923785B2 (en) | 2004-05-07 | 2014-12-30 | Qualcomm Incorporated | Continuous beamforming for a MIMO-OFDM system |
US8285226B2 (en) | 2004-05-07 | 2012-10-09 | Qualcomm Incorporated | Steering diversity for an OFDM-based multi-antenna communication system |
US7505397B2 (en) | 2004-06-16 | 2009-03-17 | Samsung Electronics Co., Ltd | Method for transmitting/receiving data in mobile communication systems using an OFDMA scheme |
US7978649B2 (en) | 2004-07-15 | 2011-07-12 | Qualcomm, Incorporated | Unified MIMO transmission and reception |
US11184037B1 (en) | 2004-08-02 | 2021-11-23 | Genghiscomm Holdings, LLC | Demodulating and decoding carrier interferometry signals |
US11431386B1 (en) | 2004-08-02 | 2022-08-30 | Genghiscomm Holdings, LLC | Transmit pre-coding |
US11552737B1 (en) | 2004-08-02 | 2023-01-10 | Genghiscomm Holdings, LLC | Cooperative MIMO |
KR100718592B1 (ko) * | 2005-12-31 | 2007-05-17 | 포스데이타 주식회사 | Ofdm/ofdma 방식을 지원하는 통신 시스템의 채널추정 장치 및 방법 |
US8543070B2 (en) | 2006-04-24 | 2013-09-24 | Qualcomm Incorporated | Reduced complexity beam-steered MIMO OFDM system |
EP1858208A1 (en) * | 2006-05-19 | 2007-11-21 | Nokia Siemens Networks Gmbh & Co. Kg | Method and node for providing a quality of service support in multihop communication systems |
US8290089B2 (en) | 2006-05-22 | 2012-10-16 | Qualcomm Incorporated | Derivation and feedback of transmit steering matrix |
EP1912374A1 (de) * | 2006-10-10 | 2008-04-16 | Nokia Siemens Networks Gmbh & Co. Kg | Datenübertragung in einem Mehrnutzer-OFDM-System mit adaptiver Modulation |
KR100801290B1 (ko) * | 2006-11-16 | 2008-02-05 | 한국전자통신연구원 | 직교 주파수 분할 다중 접속 통신시스템의 복조장치 및 그방법 |
CA2623823A1 (en) | 2007-03-02 | 2008-09-02 | Sean C. Carroll | Non-orthogonal frequency-division multiplexed communication through a non-linear transmission medium |
JP4823107B2 (ja) * | 2007-03-09 | 2011-11-24 | 株式会社日立製作所 | Ofdm変調装置 |
JP2008252315A (ja) * | 2007-03-29 | 2008-10-16 | Kddi Corp | 無線装置 |
JP5115369B2 (ja) | 2008-07-09 | 2013-01-09 | 富士通株式会社 | 基地局装置、通信システムおよびチャネル割当方法 |
US9021341B1 (en) * | 2010-06-16 | 2015-04-28 | Marvell International Ltd. | LDPC coding in a communication system |
US8565342B2 (en) * | 2010-06-22 | 2013-10-22 | Sony Corporation | Power amplification apparatus, OFDM modulation apparatus, wireless transmission apparatus, and distortion reduction method for power amplification apparatus |
WO2012116406A2 (en) * | 2011-03-03 | 2012-09-07 | Ofidium Pty Ltd | Improvements in optical ofdm transmission |
JP5839108B2 (ja) * | 2012-03-16 | 2016-01-06 | 富士通株式会社 | 光送信装置および光送信方法 |
TW201445989A (zh) * | 2013-05-30 | 2014-12-01 | Hon Hai Prec Ind Co Ltd | 分散式編解碼系統及方法 |
CN103647742B (zh) * | 2013-12-25 | 2017-09-08 | 上海贝岭股份有限公司 | 电力线载波ofdm系统的通信方法和设备 |
US9973369B2 (en) * | 2014-03-13 | 2018-05-15 | Mitsubishi Electric Corporation | Likelihood generation apparatus and method therefor |
KR20190008827A (ko) * | 2015-09-07 | 2019-01-25 | 코히어 테크널러지스, 아이엔씨. | 직교 시간 주파수 공간 변조를 이용한 다중액세스 |
US10637705B1 (en) | 2017-05-25 | 2020-04-28 | Genghiscomm Holdings, LLC | Peak-to-average-power reduction for OFDM multiple access |
US10243773B1 (en) | 2017-06-30 | 2019-03-26 | Genghiscomm Holdings, LLC | Efficient peak-to-average-power reduction for OFDM and MIMO-OFDM |
US10560097B1 (en) * | 2018-09-28 | 2020-02-11 | Teletrx Co. | High-speed 4:1 multiplexer for voltage-mode transmitter with automatic phase alignment technique |
CN111464478B (zh) | 2019-01-21 | 2023-04-07 | 华为技术有限公司 | 一种信号发送、接收方法及设备 |
EP3915236A4 (en) | 2019-01-25 | 2023-05-24 | Genghiscomm Holdings, LLC | ORTHOGONAL MULTI-ACCESS AND NON-ORTHOGONAL MULTI-ACCESS |
US11917604B2 (en) | 2019-01-25 | 2024-02-27 | Tybalt, Llc | Orthogonal multiple access and non-orthogonal multiple access |
US11343823B2 (en) | 2020-08-16 | 2022-05-24 | Tybalt, Llc | Orthogonal multiple access and non-orthogonal multiple access |
WO2020242898A1 (en) | 2019-05-26 | 2020-12-03 | Genghiscomm Holdings, LLC | Non-orthogonal multiple access |
Family Cites Families (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2078445A1 (en) * | 1990-03-30 | 1991-10-17 | Arthur Gordon Mason | Method and apparatus for transmitting and receiving ofdm carriers |
US5555268A (en) * | 1994-01-24 | 1996-09-10 | Fattouche; Michel | Multicode direct sequence spread spectrum |
US6334219B1 (en) | 1994-09-26 | 2001-12-25 | Adc Telecommunications Inc. | Channel selection for a hybrid fiber coax network |
JP3145003B2 (ja) * | 1995-03-23 | 2001-03-12 | 株式会社東芝 | 直交周波数分割多重伝送方式とその送信装置および受信装置 |
GB9510127D0 (en) * | 1995-05-20 | 1995-08-02 | West End System Corp | CATV Data transmission system |
JP3597602B2 (ja) | 1995-05-31 | 2004-12-08 | 株式会社東芝 | 無線通信装置 |
EP0753947B1 (en) * | 1995-07-11 | 2002-11-27 | Alcatel | Capacity allocation in a multicarrier system |
US5790516A (en) * | 1995-07-14 | 1998-08-04 | Telefonaktiebolaget Lm Ericsson | Pulse shaping for data transmission in an orthogonal frequency division multiplexed system |
US6072779A (en) | 1997-06-12 | 2000-06-06 | Aware, Inc. | Adaptive allocation for variable bandwidth multicarrier communication |
US6192068B1 (en) * | 1996-10-03 | 2001-02-20 | Wi-Lan Inc. | Multicode spread spectrum communications system |
KR100204585B1 (ko) * | 1996-12-14 | 1999-06-15 | 정선종 | 오에프디엠/씨디엠에이 방식에 적용될 수 있는 아이에프에프티/에프에프티 블록 및 타이밍 동기방법 |
JP3535344B2 (ja) | 1997-05-30 | 2004-06-07 | 松下電器産業株式会社 | マルチキャリア伝送方法及びデータ送信装置並びに移動局装置及び基地局装置 |
US6314102B1 (en) | 1997-07-10 | 2001-11-06 | Alcatel | Telecommunications system for providing both narrowband and broadband services to subscribers |
JP3797510B2 (ja) * | 1997-07-16 | 2006-07-19 | ソニー株式会社 | 通信方法、送信装置、受信装置及びセルラー無線通信システム |
US6038450A (en) * | 1997-09-12 | 2000-03-14 | Lucent Technologies, Inc. | Soft handover system for a multiple sub-carrier communication system and method thereof |
EP0912023A1 (en) * | 1997-10-27 | 1999-04-28 | Alcatel | Demodulation and equalisation of multicarrier signals |
EP0915586B1 (en) * | 1997-11-07 | 2005-05-18 | Sony International (Europe) GmbH | Multicarrier transmission, compatible with the existing GSM system |
JP3097634B2 (ja) * | 1997-11-07 | 2000-10-10 | 日本電信電話株式会社 | Ofdm変復調回路 |
GB2332602B (en) * | 1997-12-22 | 2000-03-08 | Lsi Logic Corp | Improvements relating to multidirectional communication systems |
GB2332603B (en) * | 1997-12-22 | 2000-07-19 | Lsi Logic Corp | Improvements relating to multidirectional communication systems |
EP0930752A3 (en) | 1998-01-14 | 1999-10-20 | Motorola, Inc. | Method for allocating data and power in a discrete multitone communication system |
JPH11266224A (ja) | 1998-03-18 | 1999-09-28 | Nippon Telegr & Teleph Corp <Ntt> | 直交周波数多重通信装置 |
US6108810A (en) * | 1998-03-27 | 2000-08-22 | Usa Digital Radio, Inc. | Digital audio broadcasting method using puncturable convolutional code |
US6445750B1 (en) * | 1998-04-22 | 2002-09-03 | Lucent Technologies Inc. | Technique for communicating digitally modulated signals over an amplitude-modulation frequency band |
JP3515690B2 (ja) * | 1998-06-02 | 2004-04-05 | 松下電器産業株式会社 | Ofdma信号伝送装置及び方法 |
US6246713B1 (en) * | 1998-06-08 | 2001-06-12 | Telefonaktiebolaget Lm Ericsson (Publ) | Frequency-hopping in a bandwidth-on-demand system |
GB2339514A (en) * | 1998-07-11 | 2000-01-26 | Motorola Ltd | Cellular communication system with reduced power variation |
JP2000092009A (ja) | 1998-07-13 | 2000-03-31 | Sony Corp | 通信方法、送信機及び受信機 |
JP2000115116A (ja) * | 1998-10-07 | 2000-04-21 | Nippon Columbia Co Ltd | 直交周波数分割多重信号発生装置、直交周波数分割多重信号発生方法及び通信装置 |
US7039120B1 (en) * | 1998-11-30 | 2006-05-02 | Canon Kabushiki Kaisha | Device and method for the dynamic allocation of frequencies for multicarrier modulation systems |
JP2000252951A (ja) * | 1999-03-01 | 2000-09-14 | Sony Corp | 同期信号検出方法及び無線通信装置 |
JP2000287086A (ja) * | 1999-03-31 | 2000-10-13 | Minolta Co Ltd | 画像処理装置 |
JP2001036499A (ja) * | 1999-07-23 | 2001-02-09 | Fujitsu Ltd | 通信帯域設定方法及び通信装置 |
US6442129B1 (en) * | 1999-12-06 | 2002-08-27 | Intellon Corporation | Enhanced channel estimation |
US6397368B1 (en) * | 1999-12-06 | 2002-05-28 | Intellon Corporation | Forward error correction with channel adaptation |
US6628673B1 (en) * | 1999-12-29 | 2003-09-30 | Atheros Communications, Inc. | Scalable communication system using overlaid signals and multi-carrier frequency communication |
US6807146B1 (en) * | 2000-04-21 | 2004-10-19 | Atheros Communications, Inc. | Protocols for scalable communication system using overland signals and multi-carrier frequency communication |
-
2000
- 2000-06-14 JP JP2000177711A patent/JP2001358692A/ja active Pending
-
2001
- 2001-06-12 EP EP07090002.2A patent/EP1773015B1/en not_active Expired - Lifetime
- 2001-06-12 DE DE60129884T patent/DE60129884T2/de not_active Expired - Lifetime
- 2001-06-12 EP EP01250209A patent/EP1164740B1/en not_active Expired - Lifetime
- 2001-06-12 US US09/879,323 patent/US7099268B2/en not_active Expired - Lifetime
- 2001-06-13 KR KR10-2001-0033186A patent/KR100437306B1/ko active IP Right Grant
- 2001-06-13 CN CN2006100817569A patent/CN1855908B/zh not_active Expired - Lifetime
- 2001-06-13 CN CNB011187883A patent/CN1284316C/zh not_active Expired - Lifetime
-
2006
- 2006-05-25 US US11/441,257 patent/US7843803B2/en not_active Expired - Lifetime
-
2010
- 2010-10-27 US US12/913,266 patent/US8335153B2/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20030094909A (ko) * | 2002-06-10 | 2003-12-18 | 삼성전자주식회사 | 시간영역동기 오에프디엠 송신기를 이용한디지털방송신호의 오에프디엠 다중 반송파 변조방법 |
KR101227245B1 (ko) * | 2006-04-07 | 2013-01-28 | 재단법인서울대학교산학협력재단 | 빔 포밍-다중 입력 다중 출력/직교 주파수 분할 다중화통신 시스템에서 신호 송수신 장치 및 방법 |
KR100901692B1 (ko) * | 2007-03-27 | 2009-06-08 | 한국전자통신연구원 | 저속 무선 개인 통신 네트워크에서 다중모드 송수신 장치및 그 방법 |
Also Published As
Publication number | Publication date |
---|---|
US8335153B2 (en) | 2012-12-18 |
EP1773015B1 (en) | 2018-02-28 |
US20010053124A1 (en) | 2001-12-20 |
CN1855908A (zh) | 2006-11-01 |
US7843803B2 (en) | 2010-11-30 |
CN1284316C (zh) | 2006-11-08 |
US7099268B2 (en) | 2006-08-29 |
CN1329406A (zh) | 2002-01-02 |
EP1164740B1 (en) | 2007-08-15 |
CN1855908B (zh) | 2011-04-20 |
US20060209673A1 (en) | 2006-09-21 |
DE60129884D1 (de) | 2007-09-27 |
US20110038403A1 (en) | 2011-02-17 |
EP1773015A1 (en) | 2007-04-11 |
JP2001358692A (ja) | 2001-12-26 |
EP1164740A3 (en) | 2003-12-17 |
EP1164740A2 (en) | 2001-12-19 |
DE60129884T2 (de) | 2008-04-30 |
KR100437306B1 (ko) | 2004-06-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR100437306B1 (ko) | 직교주파수분할 다중 변복조 회로 | |
CN101375531B (zh) | 移动通信系统中的混合多址接入设备和方法 | |
EP1234401B1 (en) | Variable rate coding for forward link | |
US6430148B1 (en) | Multidirectional communication systems | |
CN1585394B (zh) | 正交频分复用系统中分配副载波的装置和方法 | |
RU2430475C2 (ru) | Устройство для генерирования набора параметров радиосвязи, передатчик и приемник | |
CN102868511B (zh) | 通信方法和无线发射机 | |
KR100651509B1 (ko) | 직교 주파수 분할 다중 접속 통신 시스템에서 상향링크 고속 피드백 정보 전송 방법 및 장치 | |
US7042957B1 (en) | Method and communication system for transmitting information with the aid of a multicarrier method | |
JPH10503893A (ja) | 多重音調データ伝送システムにおける多ポイント−ポイント通信を整合するための方法及び装置 | |
CN101171779A (zh) | 正交频分复用系统中发送和接收未编码信道信息的方法、装置和系统 | |
CN1169316C (zh) | 多线无线电话中的基站单元与手机时周同步 | |
CA2290596C (en) | System for the transmission of high-rate value-added services by terrestrial broadcasting | |
US6542460B1 (en) | Relating to multidirectional communication systems | |
CA2652596A1 (en) | Communication system | |
JP3786129B2 (ja) | 直交周波数分割多重変復調回路 | |
JP2002261727A (ja) | Ofdm信号伝送装置 | |
US7206278B2 (en) | Method and system for increasing the total amount of useful information (throughput) transmitted in a radiocommunication system | |
AU738026B2 (en) | Method and apparatus for coordinating multi-point-to-point communications in a multi-tone data transmission system | |
AU8364201A (en) | Method and apparatus for coordinating multi-point to point communications in a multi-tone data transmission system |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
AMND | Amendment | ||
E601 | Decision to refuse application | ||
J201 | Request for trial against refusal decision | ||
AMND | Amendment | ||
B701 | Decision to grant | ||
GRNT | Written decision to grant | ||
FPAY | Annual fee payment |
Payment date: 20130524 Year of fee payment: 10 |
|
FPAY | Annual fee payment |
Payment date: 20140522 Year of fee payment: 11 |
|
FPAY | Annual fee payment |
Payment date: 20150519 Year of fee payment: 12 |
|
FPAY | Annual fee payment |
Payment date: 20160520 Year of fee payment: 13 |
|
FPAY | Annual fee payment |
Payment date: 20170522 Year of fee payment: 14 |
|
FPAY | Annual fee payment |
Payment date: 20180607 Year of fee payment: 15 |
|
FPAY | Annual fee payment |
Payment date: 20190605 Year of fee payment: 16 |