SE0004403D0 - Methods and arrangements in a telecommunications system - Google Patents
Methods and arrangements in a telecommunications systemInfo
- Publication number
- SE0004403D0 SE0004403D0 SE0004403A SE0004403A SE0004403D0 SE 0004403 D0 SE0004403 D0 SE 0004403D0 SE 0004403 A SE0004403 A SE 0004403A SE 0004403 A SE0004403 A SE 0004403A SE 0004403 D0 SE0004403 D0 SE 0004403D0
- Authority
- SE
- Sweden
- Prior art keywords
- antenna
- training sequences
- receiving unit
- cyclically rotated
- predetermined step
- Prior art date
Links
Classifications
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
- H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
- H04L1/0618—Space-time coding
-
- 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
-
- 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
- H04L27/26035—Maintenance of orthogonality, e.g. for signals exchanged between cells or users, or by using covering codes or sequences
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Radio Transmission System (AREA)
- Exchange Systems With Centralized Control (AREA)
- Lock And Its Accessories (AREA)
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0004403A SE0004403L (sv) | 2000-11-29 | 2000-11-29 | Metoder och anordningar i ett telekommunikationssystem |
EP01977021A EP1338110B1 (en) | 2000-11-29 | 2001-10-18 | Methods and arrangements in a telecommunications system |
AT01977021T ATE356479T1 (de) | 2000-11-29 | 2001-10-18 | Verfahren und anordnungen in einem telekommunikationssystem |
PCT/SE2001/002292 WO2002045329A1 (en) | 2000-11-29 | 2001-10-18 | Methods and arrangements in a telecommunications system |
DE60127163T DE60127163T2 (de) | 2000-11-29 | 2001-10-18 | Verfahren und anordnungen in einem telekommunikationssystem |
AU2001296171A AU2001296171A1 (en) | 2000-11-29 | 2001-10-18 | Methods and arrangements in a telecommunications system |
CNB01819639XA CN1312873C (zh) | 2000-11-29 | 2001-10-18 | 一种用于无线通信系统中的方法 |
ES01977021T ES2282300T3 (es) | 2000-11-29 | 2001-10-18 | Metodo y distribuciones en un sistema de telecomunicaciones. |
TW090126573A TW525358B (en) | 2000-11-29 | 2001-10-26 | Methods and arrangements in a telecommunications system |
US09/995,759 US7082159B2 (en) | 2000-11-29 | 2001-11-29 | Methods and arrangements in a telecommunications system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0004403A SE0004403L (sv) | 2000-11-29 | 2000-11-29 | Metoder och anordningar i ett telekommunikationssystem |
Publications (2)
Publication Number | Publication Date |
---|---|
SE0004403D0 true SE0004403D0 (sv) | 2000-11-29 |
SE0004403L SE0004403L (sv) | 2002-05-30 |
Family
ID=20282031
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE0004403A SE0004403L (sv) | 2000-11-29 | 2000-11-29 | Metoder och anordningar i ett telekommunikationssystem |
Country Status (10)
Country | Link |
---|---|
US (1) | US7082159B2 (sv) |
EP (1) | EP1338110B1 (sv) |
CN (1) | CN1312873C (sv) |
AT (1) | ATE356479T1 (sv) |
AU (1) | AU2001296171A1 (sv) |
DE (1) | DE60127163T2 (sv) |
ES (1) | ES2282300T3 (sv) |
SE (1) | SE0004403L (sv) |
TW (1) | TW525358B (sv) |
WO (1) | WO2002045329A1 (sv) |
Families Citing this family (56)
Publication number | Priority date | Publication date | Assignee | Title |
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US7952511B1 (en) | 1999-04-07 | 2011-05-31 | Geer James L | Method and apparatus for the detection of objects using electromagnetic wave attenuation patterns |
FR2825861A1 (fr) * | 2001-06-06 | 2002-12-13 | St Microelectronics Sa | Allocation de frequences en modulation multiporteuses orthogonales |
FR2825859A1 (fr) * | 2001-06-06 | 2002-12-13 | St Microelectronics Sa | Procede de transmission de donnees en multiplexage par division de frequences orthogonales |
CN1669257B (zh) | 2002-07-16 | 2012-08-29 | 松下电器产业株式会社 | 通信方法和使用该通信方法的发送装置和接收装置 |
US7161896B1 (en) * | 2002-08-12 | 2007-01-09 | Cisco Systems Wireless Networking (Australia) Pty Limited | Channel estimation in a multicarrier radio receiver |
GB2393618B (en) * | 2002-09-26 | 2004-12-15 | Toshiba Res Europ Ltd | Transmission signals methods and apparatus |
US7471745B2 (en) * | 2002-11-26 | 2008-12-30 | Texas Instruments Incorporated | Method and apparatus for channel quality metric generation within a packet-based multicarrier modulation communication system |
US7065166B2 (en) * | 2002-12-19 | 2006-06-20 | Texas Instruments Incorporated | Wireless receiver and method for determining a representation of noise level of a signal |
JP2004304267A (ja) * | 2003-03-28 | 2004-10-28 | Matsushita Electric Ind Co Ltd | Ofdm受信装置及びofdm受信方法 |
US8743837B2 (en) * | 2003-04-10 | 2014-06-03 | Qualcomm Incorporated | Modified preamble structure for IEEE 802.11A extensions to allow for coexistence and interoperability between 802.11A devices and higher data rate, MIMO or otherwise extended devices |
US7916803B2 (en) | 2003-04-10 | 2011-03-29 | Qualcomm Incorporated | Modified preamble structure for IEEE 802.11a extensions to allow for coexistence and interoperability between 802.11a devices and higher data rate, MIMO or otherwise extended devices |
US7385617B2 (en) | 2003-05-07 | 2008-06-10 | Illinois Institute Of Technology | Methods for multi-user broadband wireless channel estimation |
US8064528B2 (en) | 2003-05-21 | 2011-11-22 | Regents Of The University Of Minnesota | Estimating frequency-offsets and multi-antenna channels in MIMO OFDM systems |
JP4240214B2 (ja) * | 2003-07-11 | 2009-03-18 | 日本電気株式会社 | 送信装置、受信装置、通信システムおよび多重タイミング補償方法 |
EP1511210B1 (en) * | 2003-08-28 | 2011-11-09 | Motorola Solutions, Inc. | OFDM channel estimation and tracking for multiple transmit antennas |
US7573946B2 (en) * | 2003-12-31 | 2009-08-11 | Intel Corporation | Apparatus and associated methods to perform space-frequency interleaving in a multicarrier wireless communication channel |
US8194771B2 (en) * | 2004-01-27 | 2012-06-05 | Agere Systems Inc. | Transmission method and apparatus in a multiple antenna communication system |
US7412005B2 (en) * | 2004-02-19 | 2008-08-12 | Nokia Corporation | Method and apparatus providing time domain interpolated channel estimation with advanced noise suppression for multicarrier transmissions |
DE602004016219D1 (de) * | 2004-02-19 | 2008-10-09 | Ntt Docomo Inc | Kanalschätzer und verfahren zur schätzung einer kanalübertragungsfunktion sowie vorrichtung und verfahren zur erzeugung von pilotsequenzen |
DE602004014984D1 (de) * | 2004-02-19 | 2008-08-21 | Ntt Docomo Inc | Vorrichtung und verfahren zur schätzung eines effektiven kanals und vorrichtung und verfahren zur bereitstellung von pilotsequenzen |
KR100798968B1 (ko) * | 2004-03-13 | 2008-01-28 | 삼성전자주식회사 | 직교 분할 다중 접속 시스템에서 파일럿 신호 송수신 방법 및 장치 |
JP4510077B2 (ja) * | 2004-04-28 | 2010-07-21 | サムスン エレクトロニクス カンパニー リミテッド | 直交周波数分割多重接続通信システムにおける適応的アンテナシステムのためのプリアンブルシーケンス生成装置及び方法 |
ES2623882T3 (es) * | 2004-05-27 | 2017-07-12 | Qualcomm Incorporated | Estructura de preámbulo modificado para ampliaciones del IEEE802.11A para permitir la coexistencia e interoperabilidad entre dispositivos 802.11A y dispositivos con mayor tasa de transmisión de datos, MIMO o con otro tipo de ampliaciones |
JP4396423B2 (ja) * | 2004-07-05 | 2010-01-13 | パナソニック株式会社 | Ofdm受信装置 |
US7532667B2 (en) | 2004-11-05 | 2009-05-12 | Interdigital Technology Corporation | Pilot-directed and pilot/data-directed equalizers |
WO2006052774A2 (en) * | 2004-11-09 | 2006-05-18 | Motorola, Inc. | A transmitter and a receiver for communicating a signal from multiple antennas using a preamble |
US8693383B2 (en) | 2005-03-29 | 2014-04-08 | Qualcomm Incorporated | Method and apparatus for high rate data transmission in wireless communication |
US7953039B2 (en) * | 2005-04-21 | 2011-05-31 | Samsung Elecronics Co., Ltd. | System and method for channel estimation in a delay diversity wireless communication system |
WO2006116645A2 (en) * | 2005-04-26 | 2006-11-02 | Conexant Systems, Inc. | Systems and methods for transmitter diversity expansion |
CN100452789C (zh) * | 2005-04-30 | 2009-01-14 | 北京航空航天大学 | 短程无线网络数据发送方法 |
CN100356706C (zh) * | 2005-05-26 | 2007-12-19 | 北京航空航天大学 | 基于线性调频序列的扩频通信系统中的分集接收方法 |
TWI431990B (zh) | 2006-01-11 | 2014-03-21 | Interdigital Tech Corp | 以不等調變及編碼方法實施空時處理方法及裝置 |
DE102006017296A1 (de) * | 2006-04-12 | 2007-10-18 | Benq Mobile Gmbh & Co. Ohg | Verfahren zum Erzeugen und Verwenden von Trainingssequenzen und Kommunikazionssystem |
EP2016683A4 (en) * | 2006-04-27 | 2014-07-16 | Texas Instruments Inc | METHOD AND DEVICE FOR ASSIGNING REFERENCE SIGNALS IN A WIRELESS COMMUNICATION SYSTEM |
US8428197B2 (en) * | 2006-06-01 | 2013-04-23 | Qualcomm Incorporated | Enhanced channel estimation for communication system receiver |
WO2008004916A1 (en) * | 2006-07-03 | 2008-01-10 | Telefonaktiebolaget Lm Ericsson (Publ) | Multi-antenna relay with self-interference cancellation |
FR2909240A1 (fr) * | 2006-11-24 | 2008-05-30 | France Telecom | Procedes et modules d'emission/reception pour un systeme multi-antennes multi-porteuses a sequence d'apprentissage. |
JP4907721B2 (ja) * | 2006-12-07 | 2012-04-04 | インターデイジタル テクノロジー コーポレーション | トレーニング信号および情報ビットを割り当てるための無線通信方法および装置 |
DE102007033293A1 (de) | 2007-07-17 | 2009-01-29 | Technotrans Ag | Filtration für Druckmaschinen |
US7652980B2 (en) * | 2007-11-02 | 2010-01-26 | Nokia Corporation | Orthogonal frequency division multiplexing synchronization |
DE102007054644A1 (de) | 2007-11-15 | 2009-05-20 | Technotrans Ag | Prozeßmittelaufbereitung für Druckmaschinen |
DE102008003447B4 (de) | 2008-01-08 | 2010-08-19 | Technotrans Ag | Dezentrales Reinigungssystem |
WO2010013468A1 (ja) * | 2008-07-29 | 2010-02-04 | パナソニック株式会社 | 無線通信基地局装置、無線通信端末装置および巡回遅延設定方法 |
JP2010034937A (ja) * | 2008-07-30 | 2010-02-12 | Sony Corp | 無線通信装置及び無線通信方法、並びにコンピューター・プログラム |
KR101497928B1 (ko) * | 2008-09-25 | 2015-03-03 | 삼성전자주식회사 | 다중입력 다중출력 시스템에서 신호 송수신 장치 및 그 방법 |
WO2010042319A2 (en) | 2008-10-10 | 2010-04-15 | Ziva Corporation | Techniques and systems for wireless communications |
CN101420409B (zh) * | 2008-10-27 | 2012-01-11 | 宁波大学 | 一种抗干扰数字电视地面广播发射机调制方法 |
CN101764627B (zh) * | 2008-12-26 | 2014-05-07 | 株式会社Ntt都科摩 | 确定上行链路的解调导频序列的方法、终端以及上行链路系统 |
CN101582713B (zh) * | 2009-06-02 | 2012-07-25 | 清华大学 | 一种基于tds-ofdm系统的双天线发射分集实现方法及其系统 |
US8498658B2 (en) * | 2009-09-03 | 2013-07-30 | Ziva Corporation | Techniques and systems for providing data over power in communications based on time reversal |
WO2016014848A1 (en) | 2014-07-23 | 2016-01-28 | Aviat Networks, Inc. | Systems and methods for averaging in frequency domain equalization systems |
WO2016028085A1 (ko) * | 2014-08-20 | 2016-02-25 | 엘지전자 주식회사 | 무선 통신 시스템에서 시간축 상의 시프팅을 통해 비대칭 시퀀스 셋을 구성함으로써 파일럿 시퀀스를 생성하고 전송하는 방법 |
JP6725542B2 (ja) | 2015-03-06 | 2020-07-22 | ニューラコム,インコーポレイテッド | 無線lanシステムにおける追加の復号処理時間についてのサポート |
EP3386218B1 (en) * | 2017-04-03 | 2021-03-10 | Nxp B.V. | Range determining module |
CN109379320A (zh) * | 2018-11-05 | 2019-02-22 | 天津大学 | 一种时移频分复用水声通信调制方法 |
EP4030713A4 (en) * | 2019-10-30 | 2022-10-05 | Huawei Technologies Co., Ltd. | SYMBOL PROCESSING METHOD AND APPARATUS |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6005876A (en) * | 1996-03-08 | 1999-12-21 | At&T Corp | Method and apparatus for mobile data communication |
CA2252664C (en) * | 1996-04-26 | 2002-04-02 | At&T Corp. | Method and apparatus for data transmission using multiple transmit antennas |
DE69725995T2 (de) * | 1996-08-29 | 2004-11-11 | Cisco Technology, Inc., San Jose | Raumzeitliche signalverarbeitung für übertragungssysteme |
US5867478A (en) * | 1997-06-20 | 1999-02-02 | Motorola, Inc. | Synchronous coherent orthogonal frequency division multiplexing system, method, software and device |
JP3745502B2 (ja) * | 1997-06-24 | 2006-02-15 | ソニー株式会社 | 受信装置及び送受信装置並びに通信方法 |
CN1231089A (zh) * | 1997-07-01 | 1999-10-06 | 株式会社高级数字电视广播系统研究所 | 正交频分复用传输方式及其发送装置和接收装置 |
KR100224863B1 (ko) * | 1997-08-20 | 1999-10-15 | 윤종용 | Ofdm 수신기를 위한 등화 방법과 등화기 |
US6131016A (en) * | 1997-08-27 | 2000-10-10 | At&T Corp | Method and apparatus for enhancing communication reception at a wireless communication terminal |
EP1047209A1 (en) * | 1999-04-19 | 2000-10-25 | Interuniversitair Micro-Elektronica Centrum Vzw | A method and apparatus for multiuser transmission |
US6633614B1 (en) * | 1999-09-15 | 2003-10-14 | Telcordia Technologies, Inc. | Multicarrier personal access communication system |
US6351499B1 (en) * | 1999-12-15 | 2002-02-26 | Iospan Wireless, Inc. | Method and wireless systems using multiple antennas and adaptive control for maximizing a communication parameter |
US7233625B2 (en) * | 2000-09-01 | 2007-06-19 | Nortel Networks Limited | Preamble design for multiple input—multiple output (MIMO), orthogonal frequency division multiplexing (OFDM) system |
US20020176485A1 (en) * | 2001-04-03 | 2002-11-28 | Hudson John E. | Multi-cast communication system and method of estimating channel impulse responses therein |
-
2000
- 2000-11-29 SE SE0004403A patent/SE0004403L/sv not_active Application Discontinuation
-
2001
- 2001-10-18 CN CNB01819639XA patent/CN1312873C/zh not_active Expired - Lifetime
- 2001-10-18 EP EP01977021A patent/EP1338110B1/en not_active Expired - Lifetime
- 2001-10-18 AT AT01977021T patent/ATE356479T1/de not_active IP Right Cessation
- 2001-10-18 AU AU2001296171A patent/AU2001296171A1/en not_active Abandoned
- 2001-10-18 WO PCT/SE2001/002292 patent/WO2002045329A1/en active IP Right Grant
- 2001-10-18 DE DE60127163T patent/DE60127163T2/de not_active Expired - Lifetime
- 2001-10-18 ES ES01977021T patent/ES2282300T3/es not_active Expired - Lifetime
- 2001-10-26 TW TW090126573A patent/TW525358B/zh not_active IP Right Cessation
- 2001-11-29 US US09/995,759 patent/US7082159B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CN1312873C (zh) | 2007-04-25 |
ATE356479T1 (de) | 2007-03-15 |
SE0004403L (sv) | 2002-05-30 |
EP1338110A1 (en) | 2003-08-27 |
TW525358B (en) | 2003-03-21 |
US7082159B2 (en) | 2006-07-25 |
WO2002045329A1 (en) | 2002-06-06 |
EP1338110B1 (en) | 2007-03-07 |
DE60127163D1 (de) | 2007-04-19 |
ES2282300T3 (es) | 2007-10-16 |
US20020118771A1 (en) | 2002-08-29 |
CN1478341A (zh) | 2004-02-25 |
AU2001296171A1 (en) | 2002-06-11 |
DE60127163T2 (de) | 2007-12-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NAV | Patent application has lapsed |