EA005669B1 - Способ синхронизации передачи данных множеству пользователей в нисходящем канале многоточечной системы передачи данных с использованием очу-модуляции - Google Patents
Способ синхронизации передачи данных множеству пользователей в нисходящем канале многоточечной системы передачи данных с использованием очу-модуляции Download PDFInfo
- Publication number
- EA005669B1 EA005669B1 EA200301161A EA200301161A EA005669B1 EA 005669 B1 EA005669 B1 EA 005669B1 EA 200301161 A EA200301161 A EA 200301161A EA 200301161 A EA200301161 A EA 200301161A EA 005669 B1 EA005669 B1 EA 005669B1
- Authority
- EA
- Eurasian Patent Office
- Prior art keywords
- synchronization
- frequency
- denotes
- carriers
- correlation
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 52
- 238000005070 sampling Methods 0.000 claims abstract description 39
- 230000005540 biological transmission Effects 0.000 claims abstract description 22
- 230000007175 bidirectional communication Effects 0.000 claims abstract description 4
- 239000000969 carrier Substances 0.000 claims description 72
- 238000004364 calculation method Methods 0.000 claims description 27
- 125000004122 cyclic group Chemical group 0.000 claims description 20
- 238000004422 calculation algorithm Methods 0.000 claims description 17
- 238000012937 correction Methods 0.000 claims description 16
- 238000005259 measurement Methods 0.000 claims description 11
- 230000021615 conjugation Effects 0.000 claims description 9
- 101100368149 Mus musculus Sync gene Proteins 0.000 claims description 7
- 230000008859 change Effects 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 4
- 238000007476 Maximum Likelihood Methods 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 230000013011 mating Effects 0.000 claims 1
- 230000006854 communication Effects 0.000 abstract description 3
- 238000004891 communication Methods 0.000 abstract description 3
- 238000011084 recovery Methods 0.000 description 9
- 239000000872 buffer Substances 0.000 description 6
- 239000013078 crystal Substances 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000002776 aggregation Effects 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000017105 transposition Effects 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 230000036772 blood pressure Effects 0.000 description 1
- 239000013256 coordination polymer Substances 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000002592 echocardiography Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
Classifications
-
- 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
-
- 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
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
-
- 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
- H04L27/2605—Symbol extensions, e.g. Zero Tail, Unique Word [UW]
- H04L27/2607—Cyclic extensions
-
- 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
- H04L27/2613—Structure of the reference signals
-
- 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
-
- 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
- H04L27/2662—Symbol synchronisation
-
- 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
- H04B—TRANSMISSION
- H04B2203/00—Indexing scheme relating to line transmission systems
- H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
- H04B2203/5404—Methods of transmitting or receiving signals via power distribution lines
- H04B2203/5416—Methods of transmitting or receiving signals via power distribution lines by adding signals to the wave form of the power source
-
- 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
- H04L25/0224—Channel estimation using sounding signals
- H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
- H04L25/023—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols
- H04L25/0232—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols by interpolation between sounding signals
-
- 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
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L25/03159—Arrangements for removing intersymbol interference operating in the frequency domain
-
- 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) or DMT
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Mobile Radio Communication Systems (AREA)
- Time-Division Multiplex Systems (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Small-Scale Networks (AREA)
- Radio Transmission System (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES200101154A ES2188370B1 (es) | 2001-05-21 | 2001-05-21 | Procedimiento para la sincronizacion en el enlace descendente de multiples usuarios en un sistema de transmision punto a multipunto con modulacion ofdm. |
| PCT/ES2002/000234 WO2002095976A1 (es) | 2001-05-21 | 2002-05-17 | Procedimiento para la sincronizacion en el enlace descendente de multiples usuarios en un sistema de transmision punto a multipunto con modulacion ofdm |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EA200301161A1 EA200301161A1 (ru) | 2004-08-26 |
| EA005669B1 true EA005669B1 (ru) | 2005-04-28 |
Family
ID=8497781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EA200301161A EA005669B1 (ru) | 2001-05-21 | 2002-05-17 | Способ синхронизации передачи данных множеству пользователей в нисходящем канале многоточечной системы передачи данных с использованием очу-модуляции |
Country Status (16)
| Country | Link |
|---|---|
| US (1) | US7423959B2 (https=) |
| EP (1) | EP1389835B1 (https=) |
| JP (1) | JP4044445B2 (https=) |
| KR (1) | KR100768835B1 (https=) |
| CN (1) | CN1528059A (https=) |
| AT (1) | ATE377870T1 (https=) |
| AU (1) | AU2002304581B2 (https=) |
| BR (1) | BR0210055A (https=) |
| CA (1) | CA2448106A1 (https=) |
| DE (1) | DE60223356T2 (https=) |
| EA (1) | EA005669B1 (https=) |
| ES (2) | ES2188370B1 (https=) |
| IL (1) | IL158758A0 (https=) |
| MX (1) | MXPA03010658A (https=) |
| PT (1) | PT1389835E (https=) |
| WO (1) | WO2002095976A1 (https=) |
Families Citing this family (38)
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| ES2212744B2 (es) * | 2003-01-10 | 2005-03-16 | Diseño De Sistemas En Silicio, S.A. | Procedimiento de sincronizacion en el dominio del tiempo y de la frecuencia de multiples equipos en un sistema de transmision con modulacion ofdm. |
| ES2221570B2 (es) | 2003-05-30 | 2005-10-01 | Diseño De Sistemas En Silicio, S.A. | Procedimiento de remuestreo en transmision y recepcion de una señal digital con traslacion en banda digital. |
| US7058378B2 (en) * | 2003-11-18 | 2006-06-06 | Interdigital Technology Corporation | Method and apparatus for automatic frequency correction of a local oscilator with an error signal derived from an angle value of the conjugate product and sum of block correlator outputs |
| JP4290048B2 (ja) * | 2004-03-23 | 2009-07-01 | 三洋電機株式会社 | 受信方法および装置 |
| WO2005114858A1 (en) * | 2004-05-21 | 2005-12-01 | Koninklijke Philips Electronics, N.V. | A transmitter and receiver for ultra-wideband ofdm signals employing a low-complexity cdma layer for bandwidth expansion |
| KR101065687B1 (ko) * | 2004-06-10 | 2011-09-19 | 엘지전자 주식회사 | Ofdm 무선 통신 시스템에 적용되는 시간 동기 획득 방법 |
| US7421013B1 (en) * | 2004-08-02 | 2008-09-02 | Marvell International Ltd. | Maximum likelihood estimation of time and frequency offset for OFDM systems |
| JP4388979B2 (ja) * | 2004-08-17 | 2009-12-24 | エルジー エレクトロニクス インコーポレイティド | Ofdmシステムにおけるシンボルタイミング検出方法 |
| KR100587310B1 (ko) * | 2004-08-18 | 2006-06-08 | 엘지전자 주식회사 | 주파수 동기 장치 및 이를 적용한 dvb-h 수신 시스템 |
| CN100479445C (zh) * | 2005-01-28 | 2009-04-15 | 北京大学 | 使用了前后缀信号的正交频分复用通信方法 |
| US7778336B1 (en) | 2005-02-09 | 2010-08-17 | Marvell International Ltd. | Timing and frequency synchronization of OFDM signals for changing channel conditions |
| JP4440831B2 (ja) * | 2005-06-14 | 2010-03-24 | 株式会社エヌ・ティ・ティ・ドコモ | 基地局装置、送信方法及び通信システム |
| US8315191B2 (en) * | 2005-09-20 | 2012-11-20 | Qualcomm Incorporated | Timing acquisition and mode and guard detection for an OFDM transmission |
| US7894417B2 (en) * | 2005-11-01 | 2011-02-22 | Nokia Corporation | Signal arrangement for multi-bandwidth OFDM system |
| US8130629B2 (en) * | 2005-11-25 | 2012-03-06 | Go Net Systems Ltd | Simultaneous simulcast and single cast hybrid multi-tone communication system |
| US7512113B2 (en) * | 2005-12-21 | 2009-03-31 | Motorola, Inc. | Method and system for determining a minimum time of flight of a radio frequency transmission |
| US7769119B2 (en) | 2006-09-27 | 2010-08-03 | Sandbridge Technologies, Inc. | Method of initial synchronization of a communication signal |
| CN100562001C (zh) * | 2007-05-30 | 2009-11-18 | 北京中星微电子有限公司 | 确定正交频分复用系统导频位置的方法、装置及解调设备 |
| CN101374129B (zh) * | 2007-08-20 | 2012-01-11 | 中兴通讯股份有限公司 | 基于正交频分复用的同步序列生成方法、同步方法及系统 |
| EP2079212A1 (en) * | 2008-01-11 | 2009-07-15 | Sandbridge Technologies, Inc. | A method of initial synchronization of a communication signal |
| CN101933300A (zh) * | 2008-01-30 | 2010-12-29 | 艾利森电话股份有限公司 | 使用不平衡qpsk调制的时隙共享 |
| US8774248B2 (en) * | 2008-01-30 | 2014-07-08 | Telefonaktiebolaget Lm Ericsson (Publ) | Receiver for MUROS adapted to estimate symbol constellation using training sequences from two sub-channels |
| WO2009096842A1 (en) * | 2008-01-30 | 2009-08-06 | Telefonaktiebolaget L M Ericsson (Publ) | A method of data modulation adapted to selected modulation rotational angle |
| WO2009096843A1 (en) * | 2008-01-30 | 2009-08-06 | Telefonaktiebolaget L M Ericsson (Publ) | Report mechanism in a radio system reusing one time-slot |
| US8509208B2 (en) * | 2008-02-01 | 2013-08-13 | Qualcomm Incorporated | Frequency error estimation |
| CN101888354B (zh) * | 2009-05-15 | 2013-06-05 | 中兴通讯股份有限公司 | 一种信道估计方法及装置 |
| JP5237214B2 (ja) | 2009-07-15 | 2013-07-17 | 株式会社日立製作所 | 送信装置、受信装置、または無線通信の処理方法 |
| US8625689B2 (en) * | 2010-07-09 | 2014-01-07 | Texas Instruments Incorporated | Time-domain link adaptation |
| US8548096B2 (en) * | 2010-12-31 | 2013-10-01 | Telefonaktiebolaget L M Ericsson (Publ) | Controllable frequency offset for inphase and Quadrature (IQ) imbalance estimation |
| CN103236914B (zh) * | 2013-04-16 | 2016-02-03 | 深圳市力合微电子股份有限公司 | 一种电力线载波通信系统的同步信号生成方法及装置 |
| CN103580718B (zh) * | 2013-10-15 | 2015-06-10 | 北京航天科工世纪卫星科技有限公司 | 一种低信噪比下的快速时频同步方法 |
| CN105659675B (zh) | 2014-09-23 | 2019-05-28 | 华为技术有限公司 | 发射器,接收器,和用于发送/接收同步信号的方法 |
| US9559815B1 (en) * | 2015-08-26 | 2017-01-31 | Friskydsp Technology Ltd. | Generation of OFDM symbols |
| US11051263B2 (en) * | 2017-06-15 | 2021-06-29 | Qualcomm Incorporated | Synchronization channel and system acquisition for internet of things communications in a shared spectrum |
| ES2895680T3 (es) * | 2017-11-07 | 2022-02-22 | Siemens Ag | Procedimiento para la sincronización de unidades emisoras y receptoras en una transmisión de señales multiportadora |
| JP6559763B2 (ja) * | 2017-12-14 | 2019-08-14 | ホアウェイ・テクノロジーズ・カンパニー・リミテッド | 送信機、受信機、および同期信号を送信/受信するための方法 |
| EP3993288A4 (en) * | 2019-07-09 | 2022-08-31 | Samsung Electronics Co., Ltd. | DEVICE AND METHOD FOR DETECTING INTERFERENCE BETWEEN BASE STATIONS IN A WIRELESS COMMUNICATION SYSTEM |
| CN111970063B (zh) * | 2020-08-26 | 2022-04-29 | 北京字节跳动网络技术有限公司 | 一种通信方法、装置、设备和存储介质 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2774961B2 (ja) | 1996-03-29 | 1998-07-09 | 株式会社次世代デジタルテレビジョン放送システム研究所 | Ofdm復調装置 |
| US5732113A (en) * | 1996-06-20 | 1998-03-24 | Stanford University | Timing and frequency synchronization of OFDM signals |
| US6519291B1 (en) | 1998-02-03 | 2003-02-11 | Lucent Technologies Inc. | Reduction of interference in discrete multi-tone (DMT) based communications systems |
| US6876675B1 (en) * | 1998-02-06 | 2005-04-05 | Cisco Technology, Inc. | Synchronization in OFDM systems |
| JP3606761B2 (ja) | 1998-11-26 | 2005-01-05 | 松下電器産業株式会社 | Ofdm受信装置 |
| JP3279277B2 (ja) * | 1999-02-19 | 2002-04-30 | 三菱電機株式会社 | マルチキャリア通信方法およびマルチキャリア通信装置 |
| KR100335443B1 (ko) | 1999-06-15 | 2002-05-04 | 윤종용 | 직교주파수분할다중변조 신호의 심볼 타이밍 및 주파수 동기 장치 및 방법 |
| US6985432B1 (en) * | 2000-01-28 | 2006-01-10 | Zion Hadad | OFDM communication channel |
| JP2001111518A (ja) * | 1999-10-04 | 2001-04-20 | Mitsubishi Electric Corp | 通信方法および通信装置 |
| US6614864B1 (en) * | 1999-10-12 | 2003-09-02 | Itran Communications Ltd. | Apparatus for and method of adaptive synchronization in a spread spectrum communications receiver |
| US6526295B1 (en) | 1999-10-14 | 2003-02-25 | Ericsson Inc. | Power conservation method in mobile communications device |
| US6628735B1 (en) * | 1999-12-22 | 2003-09-30 | Thomson Licensing S.A. | Correction of a sampling frequency offset in an orthogonal frequency division multiplexing system |
-
2001
- 2001-05-21 ES ES200101154A patent/ES2188370B1/es not_active Expired - Fee Related
-
2002
- 2002-05-17 JP JP2002592319A patent/JP4044445B2/ja not_active Expired - Fee Related
- 2002-05-17 WO PCT/ES2002/000234 patent/WO2002095976A1/es not_active Ceased
- 2002-05-17 KR KR1020037015198A patent/KR100768835B1/ko not_active Expired - Fee Related
- 2002-05-17 EP EP02732765A patent/EP1389835B1/en not_active Expired - Lifetime
- 2002-05-17 BR BR0210055-0A patent/BR0210055A/pt not_active IP Right Cessation
- 2002-05-17 IL IL15875802A patent/IL158758A0/xx unknown
- 2002-05-17 DE DE60223356T patent/DE60223356T2/de not_active Expired - Fee Related
- 2002-05-17 ES ES02732765T patent/ES2296929T3/es not_active Expired - Lifetime
- 2002-05-17 MX MXPA03010658A patent/MXPA03010658A/es active IP Right Grant
- 2002-05-17 PT PT02732765T patent/PT1389835E/pt unknown
- 2002-05-17 AT AT02732765T patent/ATE377870T1/de not_active IP Right Cessation
- 2002-05-17 CA CA002448106A patent/CA2448106A1/en not_active Abandoned
- 2002-05-17 CN CNA028141598A patent/CN1528059A/zh active Pending
- 2002-05-17 AU AU2002304581A patent/AU2002304581B2/en not_active Ceased
- 2002-05-17 EA EA200301161A patent/EA005669B1/ru not_active IP Right Cessation
-
2003
- 2003-11-20 US US10/718,143 patent/US7423959B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| BR0210055A (pt) | 2004-08-17 |
| JP4044445B2 (ja) | 2008-02-06 |
| KR20040008186A (ko) | 2004-01-28 |
| AU2002304581B2 (en) | 2008-01-03 |
| JP2004533768A (ja) | 2004-11-04 |
| WO2002095976A1 (es) | 2002-11-28 |
| DE60223356D1 (de) | 2007-12-20 |
| DE60223356T2 (de) | 2008-08-28 |
| EP1389835A1 (en) | 2004-02-18 |
| IL158758A0 (en) | 2004-05-12 |
| CA2448106A1 (en) | 2002-11-28 |
| CN1528059A (zh) | 2004-09-08 |
| US7423959B2 (en) | 2008-09-09 |
| KR100768835B1 (ko) | 2007-10-19 |
| EP1389835B1 (en) | 2007-11-07 |
| MXPA03010658A (es) | 2004-03-02 |
| PT1389835E (pt) | 2008-02-14 |
| ES2188370A1 (es) | 2003-06-16 |
| ES2296929T3 (es) | 2008-05-01 |
| ES2188370B1 (es) | 2004-10-16 |
| EA200301161A1 (ru) | 2004-08-26 |
| US20040114551A1 (en) | 2004-06-17 |
| ATE377870T1 (de) | 2007-11-15 |
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