ATE304771T1 - Verfahren und einrichtung zur entscheidungsgesteuerten demodulation mittels gruppenantennen und räumlicher verarbeitung - Google Patents
Verfahren und einrichtung zur entscheidungsgesteuerten demodulation mittels gruppenantennen und räumlicher verarbeitungInfo
- Publication number
- ATE304771T1 ATE304771T1 AT97911768T AT97911768T ATE304771T1 AT E304771 T1 ATE304771 T1 AT E304771T1 AT 97911768 T AT97911768 T AT 97911768T AT 97911768 T AT97911768 T AT 97911768T AT E304771 T1 ATE304771 T1 AT E304771T1
- Authority
- AT
- Austria
- Prior art keywords
- decision
- spatial processing
- demodulation
- antennas
- base station
- Prior art date
Links
Classifications
-
- 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
-
- 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
- H04L27/22—Demodulator circuits; Receiver circuits
- H04L27/233—Demodulator circuits; Receiver circuits using non-coherent demodulation
- H04L27/2332—Demodulator circuits; Receiver circuits using non-coherent demodulation using a non-coherent carrier
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0014—Carrier regulation
- H04L2027/0024—Carrier regulation at the receiver end
- H04L2027/0026—Correction of carrier offset
- H04L2027/003—Correction of carrier offset at baseband only
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0014—Carrier regulation
- H04L2027/0044—Control loops for carrier regulation
- H04L2027/0046—Open loops
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0014—Carrier regulation
- H04L2027/0083—Signalling arrangements
- H04L2027/0089—In-band signals
- H04L2027/0093—Intermittant signals
- H04L2027/0095—Intermittant signals in a preamble or similar structure
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Transmission System (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/729,390 US5909470A (en) | 1996-10-11 | 1996-10-11 | Method and apparatus for decision directed demodulation using antenna arrays and spatial processing |
PCT/US1997/018745 WO1998017037A1 (en) | 1996-10-11 | 1997-10-10 | Method and apparatus for decision directed demodulation using antenna arrays and spatial processing |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE304771T1 true ATE304771T1 (de) | 2005-09-15 |
Family
ID=24930817
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT97911768T ATE304771T1 (de) | 1996-10-11 | 1997-10-10 | Verfahren und einrichtung zur entscheidungsgesteuerten demodulation mittels gruppenantennen und räumlicher verarbeitung |
Country Status (10)
Country | Link |
---|---|
US (1) | US5909470A (de) |
EP (1) | EP0951770B1 (de) |
JP (1) | JP4364946B2 (de) |
CN (1) | CN1290299C (de) |
AT (1) | ATE304771T1 (de) |
AU (1) | AU4906697A (de) |
BR (1) | BR9711898B1 (de) |
CA (1) | CA2268262A1 (de) |
DE (1) | DE69734208T2 (de) |
WO (1) | WO1998017037A1 (de) |
Families Citing this family (55)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5579341A (en) * | 1994-12-29 | 1996-11-26 | Motorola, Inc. | Multi-channel digital transceiver and method |
US7035661B1 (en) * | 1996-10-11 | 2006-04-25 | Arraycomm, Llc. | Power control with signal quality estimation for smart antenna communication systems |
US6275543B1 (en) * | 1996-10-11 | 2001-08-14 | Arraycomm, Inc. | Method for reference signal generation in the presence of frequency offsets in a communications station with spatial processing |
US6463295B1 (en) | 1996-10-11 | 2002-10-08 | Arraycomm, Inc. | Power control with signal quality estimation for smart antenna communication systems |
US6122260A (en) * | 1996-12-16 | 2000-09-19 | Civil Telecommunications, Inc. | Smart antenna CDMA wireless communication system |
US6876675B1 (en) * | 1998-02-06 | 2005-04-05 | Cisco Technology, Inc. | Synchronization in OFDM systems |
DE69824390T2 (de) * | 1998-04-01 | 2004-10-28 | Motorola Semiconducteurs S.A. | Kommunikationsanordnung, mobile Einrichtung und Verfahren |
US6615024B1 (en) * | 1998-05-01 | 2003-09-02 | Arraycomm, Inc. | Method and apparatus for determining signatures for calibrating a communication station having an antenna array |
AT407933B (de) * | 1998-06-09 | 2001-07-25 | Juha Dipl Ing Laurila | Verfahren zur trennung und zur detektion von gleichkanal-signalen |
US6700923B1 (en) * | 1999-01-04 | 2004-03-02 | Board Of Regents The University Of Texas System | Adaptive multiple access interference suppression |
US6177906B1 (en) * | 1999-04-01 | 2001-01-23 | Arraycomm, Inc. | Multimode iterative adaptive smart antenna processing method and apparatus |
US6600914B2 (en) | 1999-05-24 | 2003-07-29 | Arraycomm, Inc. | System and method for emergency call channel allocation |
US7139592B2 (en) * | 1999-06-21 | 2006-11-21 | Arraycomm Llc | Null deepening for an adaptive antenna based communication station |
DE60036561T2 (de) * | 1999-11-02 | 2008-06-26 | Broadcom Corp., Irvine | Verfahren und vorrichtung zur detektion und klassifikation von kollisionen in einem rf-netz mit gemeinsamen zugriff |
JP2001285189A (ja) * | 2000-04-03 | 2001-10-12 | Sanyo Electric Co Ltd | 無線基地局、プログラム記憶媒体 |
US6963548B1 (en) * | 2000-04-17 | 2005-11-08 | The Directv Group, Inc. | Coherent synchronization of code division multiple access signals |
AU4679200A (en) * | 2000-04-26 | 2001-11-07 | Arraycomm Inc | Adaptive smart antenna processing method and apparatus |
US8363744B2 (en) | 2001-06-10 | 2013-01-29 | Aloft Media, Llc | Method and system for robust, secure, and high-efficiency voice and packet transmission over ad-hoc, mesh, and MIMO communication networks |
US6930989B1 (en) | 2000-06-20 | 2005-08-16 | Cisco Technology, Inc. | Wide frequency offset correction using encoded interburst phase differences |
US6895217B1 (en) | 2000-08-21 | 2005-05-17 | The Directv Group, Inc. | Stratospheric-based communication system for mobile users having adaptive interference rejection |
US7317916B1 (en) | 2000-09-14 | 2008-01-08 | The Directv Group, Inc. | Stratospheric-based communication system for mobile users using additional phased array elements for interference rejection |
US6650714B2 (en) | 2000-11-30 | 2003-11-18 | Arraycomm, Inc. | Spatial processing and timing estimation using a training sequence in a radio communications system |
US6795409B1 (en) | 2000-09-29 | 2004-09-21 | Arraycomm, Inc. | Cooperative polling in a wireless data communication system having smart antenna processing |
DE60138800D1 (de) * | 2000-10-05 | 2009-07-09 | Samsung Electronics Co Ltd | Tstd-vorrichtung und-verfahren für ein mobiles tdd-cdma-kommunikationssystem |
US6798853B1 (en) * | 2000-11-15 | 2004-09-28 | Telefonaktiebolaget Lm Ericsson (Publ) | System and method for compensating for frequency offset |
CN1593031A (zh) | 2000-11-30 | 2005-03-09 | 阿雷伊通讯有限公司 | 用于无线电通信系统的训练序列 |
US6650881B1 (en) | 2000-11-30 | 2003-11-18 | Arraycomm, Inc. | Calculating spatial weights in a radio communications system |
US6801589B1 (en) * | 2000-11-30 | 2004-10-05 | Arraycomm, Inc. | Relative timing acquisition for a radio communications system |
US6768747B1 (en) | 2000-11-30 | 2004-07-27 | Arraycomm, Inc. | Relative and absolute timing acquisition for a radio communications system |
US6891813B2 (en) | 2000-12-12 | 2005-05-10 | The Directv Group, Inc. | Dynamic cell CDMA code assignment system and method |
US7187949B2 (en) | 2001-01-19 | 2007-03-06 | The Directv Group, Inc. | Multiple basestation communication system having adaptive antennas |
US7809403B2 (en) | 2001-01-19 | 2010-10-05 | The Directv Group, Inc. | Stratospheric platforms communication system using adaptive antennas |
US8396513B2 (en) * | 2001-01-19 | 2013-03-12 | The Directv Group, Inc. | Communication system for mobile users using adaptive antenna |
US6961545B2 (en) * | 2001-04-09 | 2005-11-01 | Atheros Communications, Inc. | Method and system for providing antenna diversity |
FR2825551B1 (fr) * | 2001-05-30 | 2003-09-19 | Wavecom Sa | Procede d'estimation de la fonction de transfert d'un canal de transmission d'un signal multiporteuse, procede de reception d'un signal numerique, et recepteur d'un signal multiporteuse correspondants |
US7104534B2 (en) | 2001-06-08 | 2006-09-12 | Broadcom Corporation | System and method for detecting collisions in a shared communications medium |
US7860205B1 (en) * | 2001-09-18 | 2010-12-28 | Ciena Corporation | Clock synchronization using a weighted least squares error filtering technique |
US7006587B1 (en) * | 2001-11-20 | 2006-02-28 | Cisco Technolgy, Inc. | Preamble aided synchronization |
KR100493026B1 (ko) * | 2002-09-09 | 2005-06-07 | 삼성전자주식회사 | 전화선 모뎀을 위한 강건한 심벌 타이밍 복구 회로 |
WO2004034660A1 (en) * | 2002-10-10 | 2004-04-22 | Nokia Corporation | Channel estimation using expectation maximisation for space-time communications systems |
KR100761420B1 (ko) | 2002-10-25 | 2007-09-27 | 어레이컴, 엘엘씨 | 적응성 스마트 안테나 처리 방법 및 장치 |
JP4323873B2 (ja) * | 2003-06-13 | 2009-09-02 | 富士通株式会社 | 入出力インタフェース回路 |
US20050111427A1 (en) * | 2003-11-21 | 2005-05-26 | Qinghua Li | SDMA training and operation |
US7263335B2 (en) | 2004-07-19 | 2007-08-28 | Purewave Networks, Inc. | Multi-connection, non-simultaneous frequency diversity in radio communication systems |
US7460839B2 (en) | 2004-07-19 | 2008-12-02 | Purewave Networks, Inc. | Non-simultaneous frequency diversity in radio communication systems |
JP4338624B2 (ja) * | 2004-12-07 | 2009-10-07 | 三洋電機株式会社 | 周波数オフセット推定方法およびそれを利用した周波数オフセット補正装置 |
US7853216B1 (en) | 2005-12-22 | 2010-12-14 | Atheros Communications, Inc. | Multi-channel RX/TX calibration and local oscillator mismatch mitigation |
CN1960511B (zh) * | 2006-09-01 | 2010-05-26 | Ut斯达康(中国)有限公司 | 在个人便携电话系统中实现半速率业务的空中接口方法 |
JP5246169B2 (ja) * | 2008-01-21 | 2013-07-24 | 日本電気株式会社 | 通信装置、通信システム、制御方法及び制御プログラム |
JP4898897B2 (ja) * | 2009-12-22 | 2012-03-21 | インターナショナル・ビジネス・マシーンズ・コーポレーション | タイミング相関値を用いた周波数オフセットによるデータのずれの補償 |
CN102571170B (zh) * | 2011-12-23 | 2014-11-19 | 北京遥测技术研究所 | 一种实时校准上行天线组阵链路变化的方法 |
GB202002985D0 (en) * | 2020-03-02 | 2020-04-15 | Institute Of Science And Tech Austria Ist Austria | Demodulator, and method of demodulating a signal |
CN115242367B (zh) * | 2021-04-25 | 2023-07-25 | 中国科学院沈阳自动化研究所 | 面向工业无线信道脉冲响应的数据误差矫正方法 |
CN114338476B (zh) * | 2022-03-15 | 2022-06-03 | 北京金橙子科技股份有限公司 | 基于脉冲编码测量的通信波特率检测和地址分配的方法 |
CN115277344B (zh) * | 2022-06-29 | 2023-08-18 | 西北工业大学 | 一种基于松弛相位约束的鲁棒方向调制安全传输方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4965732A (en) * | 1985-11-06 | 1990-10-23 | The Board Of Trustees Of The Leland Stanford Junior University | Methods and arrangements for signal reception and parameter estimation |
US5592490A (en) * | 1991-12-12 | 1997-01-07 | Arraycomm, Inc. | Spectrally efficient high capacity wireless communication systems |
US5515378A (en) * | 1991-12-12 | 1996-05-07 | Arraycomm, Inc. | Spatial division multiple access wireless communication systems |
US5546090A (en) * | 1991-12-12 | 1996-08-13 | Arraycomm, Inc. | Method and apparatus for calibrating antenna arrays |
-
1996
- 1996-10-11 US US08/729,390 patent/US5909470A/en not_active Expired - Lifetime
-
1997
- 1997-10-10 AT AT97911768T patent/ATE304771T1/de not_active IP Right Cessation
- 1997-10-10 JP JP51860198A patent/JP4364946B2/ja not_active Expired - Fee Related
- 1997-10-10 DE DE69734208T patent/DE69734208T2/de not_active Expired - Lifetime
- 1997-10-10 BR BRPI9711898-2A patent/BR9711898B1/pt not_active IP Right Cessation
- 1997-10-10 AU AU49066/97A patent/AU4906697A/en not_active Abandoned
- 1997-10-10 CN CN97198739.4A patent/CN1290299C/zh not_active Expired - Lifetime
- 1997-10-10 CA CA002268262A patent/CA2268262A1/en not_active Abandoned
- 1997-10-10 EP EP97911768A patent/EP0951770B1/de not_active Expired - Lifetime
- 1997-10-10 WO PCT/US1997/018745 patent/WO1998017037A1/en active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
EP0951770A1 (de) | 1999-10-27 |
DE69734208T2 (de) | 2006-06-22 |
JP2001502502A (ja) | 2001-02-20 |
CA2268262A1 (en) | 1998-04-23 |
AU4906697A (en) | 1998-05-11 |
CN1233367A (zh) | 1999-10-27 |
BR9711898B1 (pt) | 2011-03-09 |
EP0951770A4 (de) | 2002-04-17 |
WO1998017037A1 (en) | 1998-04-23 |
DE69734208D1 (de) | 2005-10-20 |
US5909470A (en) | 1999-06-01 |
CN1290299C (zh) | 2006-12-13 |
JP4364946B2 (ja) | 2009-11-18 |
EP0951770B1 (de) | 2005-09-14 |
BR9711898A (pt) | 1999-08-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ATE304771T1 (de) | Verfahren und einrichtung zur entscheidungsgesteuerten demodulation mittels gruppenantennen und räumlicher verarbeitung | |
ATE206256T1 (de) | Verfahren und einrichtung zur auswahl zweier antennen für den empfang eines kommunikationssignals | |
DE60141065D1 (de) | Verfahren und vorrichtung zur erzeugung von pilotspegelmessungsnachrichten | |
MY125162A (en) | Communication methods and apparatus based on orthogonal hadamard-based sequences having selected correlation properties | |
DE69939884D1 (de) | Verfahren und System zur Bestimmung des Aufenthaltsorts eines Funkteilnehmers in einem CDMA-Kommunikationssystem | |
FI941862A (fi) | Menetelmä ja radiotaajuusjärjestelmä kahden eri taajuusalueella toimivan radioviestinjärjestelmän vastaanottimen ja lähettimen taajuuksien muodostamiseksi ja kahdella eri taajuusalueella toimiva vastaanotin ja lähetin sekä edellisten käyttö matkapuhelimessa | |
DE60028344D1 (de) | Verfahren und vorrichtung zur kommunikation zwischen einem klientengerät und einem linearen breitbandnetz | |
DE69006804D1 (de) | Verfahren zur Reduzierung des Leistungsbedarfs eines mobilen Funkempfängers. | |
DE60124199D1 (de) | Verfahren zum Empfang von Radiofrequenzsignalen und Diversity-Empfänger-Gerät | |
AR014145A1 (es) | Metodo y aparato para localizar una unidad movil remota | |
AU6539698A (en) | A method of and apparatus for testing a communication system | |
DE60237432D1 (de) | Verfahren und vorrichtung zur verfolgung von signalen in einem drahtlosen kommunikationssystem | |
BR9709600A (pt) | Aparelho método artigo de fabricação para compensação da frequência portadora em receptor de rádio fm | |
DE69601636D1 (de) | Verfahren zur kalibrierung von sende/empfangsketten einer basisstation eines mobilen funkkommunikationssystems | |
ATE284095T1 (de) | Verfahren und vorrichtung zur ermittlung der trägerfrequenz von basisstationen im mobilen empfänger eines mit w-cdma arbeitenden zellularen mobilfunksystems | |
DE60016270D1 (de) | Einrichtung und verfahren zur wesentlichen elimination eines amplitudenmodulierten nachbarkanal-interferenzsignals | |
DE50009675D1 (de) | Verfahren und einrichtung zum synchronisieren eines mobilfunkempfängers mit einer zeitschlitzstruktur eines empfangenen funksignals | |
ATE339036T1 (de) | Verfahren und vorrichtung zum empfang | |
ATE258729T1 (de) | Verfahren und vorrichtung zur synchronisation eines kommunikationsempfängers | |
DE3583030D1 (de) | Verfahren zum drahtlosen uebertragen eines anrufsignals. | |
ATE333196T1 (de) | Funkkommunikationsnetz testverfahren und entsprechende vorrichtung und basisstation | |
DE50010674D1 (de) | Verfahren zum synchronisieren der frequenz beim drahtlosen fernsprechen sowie anordnung zur durchführung des verfahrens | |
TW338210B (en) | Method and apparatus for maintaining channel priority in a multiple wireless communication system environment | |
ATE397412T1 (de) | Verfahren und vorrichtung zur erfassung menschlicher bewegungsmuster | |
DE60100028D1 (de) | Verfahren zur Erzeugung eines BasisbanSignals über die gesendete Hochfrequenz-Leistung, entsprechende Vorrichtung und Sendesstation |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |