CN102726019B - 一种利用载波调制的传输方法、装置和*** - Google Patents
一种利用载波调制的传输方法、装置和*** Download PDFInfo
- Publication number
- CN102726019B CN102726019B CN201180002991.1A CN201180002991A CN102726019B CN 102726019 B CN102726019 B CN 102726019B CN 201180002991 A CN201180002991 A CN 201180002991A CN 102726019 B CN102726019 B CN 102726019B
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- CN
- China
- Prior art keywords
- orthogonal frequency
- division multiplex
- echo
- multiplex singal
- signal
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000001914 filtration Methods 0.000 claims description 11
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000004891 communication Methods 0.000 abstract description 3
- 230000002159 abnormal effect Effects 0.000 abstract 1
- 238000001228 spectrum Methods 0.000 description 16
- 238000010586 diagram Methods 0.000 description 3
- 238000003672 processing method Methods 0.000 description 3
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
- H04B3/23—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other using a replica of transmitted signal in the time domain, e.g. echo cancellers
- H04B3/237—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other using a replica of transmitted signal in the time domain, e.g. echo cancellers using two adaptive filters, e.g. for near end and for end echo cancelling
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
- H04L25/0204—Channel estimation of multiple channels
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Telephone Function (AREA)
Abstract
Description
Claims (16)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CN2011/085202 WO2013097247A1 (zh) | 2011-12-31 | 2011-12-31 | 一种利用载波调制的传输方法、装置和*** |
Publications (2)
Publication Number | Publication Date |
---|---|
CN102726019A CN102726019A (zh) | 2012-10-10 |
CN102726019B true CN102726019B (zh) | 2014-07-09 |
Family
ID=46950486
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201180002991.1A Expired - Fee Related CN102726019B (zh) | 2011-12-31 | 2011-12-31 | 一种利用载波调制的传输方法、装置和*** |
Country Status (4)
Country | Link |
---|---|
US (1) | US20140313876A1 (zh) |
EP (1) | EP2787654B1 (zh) |
CN (1) | CN102726019B (zh) |
WO (1) | WO2013097247A1 (zh) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1151670A (zh) * | 1995-09-29 | 1997-06-11 | 帕拉德尼有限公司 | 蜂窝网上数据传输的回波抵消方法和装置 |
CN2826838Y (zh) * | 2005-08-09 | 2006-10-11 | 深圳市业通达实业有限公司 | 用于电力线载波通信的自适应回波抵消电路 |
CN101312372A (zh) * | 2008-05-12 | 2008-11-26 | 北京创毅视讯科技有限公司 | 一种回波消除器及回波消除方法 |
CN101447965A (zh) * | 2007-11-27 | 2009-06-03 | 韩国科学技术院 | 使用多天线的回波消除和回波信道估计*** |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5189664A (en) * | 1991-02-19 | 1993-02-23 | Silicon Systems, Inc. | Listener echo cancellation |
US5317596A (en) * | 1992-12-01 | 1994-05-31 | The Board Of Trustees Of The Leland Stanford, Junior University | Method and apparatus for echo cancellation with discrete multitone modulation |
WO1995017046A1 (en) * | 1993-12-17 | 1995-06-22 | Bell Communications Research, Inc. | An improved discrete multitone echo canceler |
JPH09223990A (ja) * | 1996-02-19 | 1997-08-26 | Fujitsu Ltd | 伝送装置 |
EP1021884A2 (en) * | 1997-07-31 | 2000-07-26 | Stanford Syncom Inc. | Means and method for a synchronous network communications system |
AP1183A (en) * | 1998-04-14 | 2003-07-01 | Fraunhofer Ges Forschung | Echo phase offset correction in a multi-carrier demodulation system. |
US7254198B1 (en) * | 2000-04-28 | 2007-08-07 | National Semiconductor Corporation | Receiver system having analog pre-filter and digital equalizer |
US7672447B1 (en) * | 2000-06-01 | 2010-03-02 | Telefonaktiebolaget Lm Ericsson (Publ) | Frequency domain echo canceller |
US7082157B2 (en) * | 2002-12-24 | 2006-07-25 | Realtek Semiconductor Corp. | Residual echo reduction for a full duplex transceiver |
JP4492953B2 (ja) * | 2004-12-21 | 2010-06-30 | ルネサスエレクトロニクス株式会社 | キャンセラ装置及びデータ伝送システム |
JP4411309B2 (ja) * | 2006-09-21 | 2010-02-10 | Okiセミコンダクタ株式会社 | ダブルトーク検出方法 |
WO2010037957A1 (fr) * | 2008-09-30 | 2010-04-08 | France Telecom | Procede d'emission tenant compte de l'echo |
TW201041328A (en) * | 2009-05-12 | 2010-11-16 | Ralink Technology Corp | Method for enhancing Ethernet channel impairment, and apparatus using the same |
CN102474409A (zh) * | 2009-07-13 | 2012-05-23 | 诺基亚西门子通信公司 | 用于mimo***的近端串话减少 |
US8630211B2 (en) * | 2010-06-30 | 2014-01-14 | Qualcomm Incorporated | Hybrid radio architecture for repeaters using RF cancellation reference |
US8477665B2 (en) * | 2010-07-14 | 2013-07-02 | Qualcomm Incorporated | Method in a wireless repeater employing an antenna array for interference reduction |
-
2011
- 2011-12-31 WO PCT/CN2011/085202 patent/WO2013097247A1/zh active Application Filing
- 2011-12-31 EP EP11878718.3A patent/EP2787654B1/en not_active Not-in-force
- 2011-12-31 CN CN201180002991.1A patent/CN102726019B/zh not_active Expired - Fee Related
-
2014
- 2014-06-30 US US14/319,862 patent/US20140313876A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1151670A (zh) * | 1995-09-29 | 1997-06-11 | 帕拉德尼有限公司 | 蜂窝网上数据传输的回波抵消方法和装置 |
CN2826838Y (zh) * | 2005-08-09 | 2006-10-11 | 深圳市业通达实业有限公司 | 用于电力线载波通信的自适应回波抵消电路 |
CN101447965A (zh) * | 2007-11-27 | 2009-06-03 | 韩国科学技术院 | 使用多天线的回波消除和回波信道估计*** |
CN101312372A (zh) * | 2008-05-12 | 2008-11-26 | 北京创毅视讯科技有限公司 | 一种回波消除器及回波消除方法 |
Also Published As
Publication number | Publication date |
---|---|
EP2787654B1 (en) | 2016-04-27 |
CN102726019A (zh) | 2012-10-10 |
EP2787654A1 (en) | 2014-10-08 |
US20140313876A1 (en) | 2014-10-23 |
WO2013097247A1 (zh) | 2013-07-04 |
EP2787654A4 (en) | 2015-01-14 |
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Effective date of registration: 20180612 Address after: 511400 room 204-1, building 1, Guangdong Pharmaceutical University, No. 280 outer ring road, Panyu District, Guangzhou, Guangdong. Patentee after: GUANGDONG GOSCIEN INFORMATION CO.,LTD. Address before: 518129 Bantian HUAWEI headquarters office building, Longgang District, Guangdong, Shenzhen Patentee before: HUAWEI TECHNOLOGIES Co.,Ltd. |
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Effective date of registration: 20210205 Address after: 511500 one of the first floor of B06, 1-3 / F, headquarters building, Tian'an Zhigu science and Technology Industrial Park, 18 Chuangxing Avenue, Qingyuan high tech Industrial Development Zone, Qingyuan City, Guangdong Province Patentee after: GUANGDONG INTERACTIVE ELECTRONIC NETWORK MEDIA Co.,Ltd. Address before: 511400 room 204-1, building 1, Guangdong Pharmaceutical University, No. 280 outer ring road, Panyu District, Guangzhou, Guangdong. Patentee before: GUANGDONG GOSCIEN INFORMATION Co.,Ltd. |
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Effective date of registration: 20210730 Address after: 510000 No. 85, Xiangxue Avenue, Huangpu District, Guangzhou City, Guangdong Province (office only) Patentee after: Paitu information technology (Guangzhou) Co.,Ltd. Address before: 511500 one of the first floor of B06, 1-3 / F, headquarters building, Tian'an Zhigu science and Technology Industrial Park, 18 Chuangxing Avenue, Qingyuan high tech Industrial Development Zone, Qingyuan City, Guangdong Province Patentee before: GUANGDONG INTERACTIVE ELECTRONIC NETWORK MEDIA Co.,Ltd. |
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Effective date of registration: 20220402 Address after: Room 1701, building 388, South Panyu Road, Panyu District, Guangzhou Patentee after: Guangzhou Zhongyue Software Group Co.,Ltd. Address before: 510000 No. 85, Xiangxue Avenue, Huangpu District, Guangzhou City, Guangdong Province (office only) Patentee before: Paitu information technology (Guangzhou) Co.,Ltd. |
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CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 |