FI884940A0 - Nopea referenssitiedonkeruu ja vaihevirheen kompensointi datan radiolähetystä varten - Google Patents

Nopea referenssitiedonkeruu ja vaihevirheen kompensointi datan radiolähetystä varten

Info

Publication number
FI884940A0
FI884940A0 FI884940A FI884940A FI884940A0 FI 884940 A0 FI884940 A0 FI 884940A0 FI 884940 A FI884940 A FI 884940A FI 884940 A FI884940 A FI 884940A FI 884940 A0 FI884940 A0 FI 884940A0
Authority
FI
Finland
Prior art keywords
compensation
data
radio transmission
fixed line
reference acquisition
Prior art date
Application number
FI884940A
Other languages
English (en)
Swedish (sv)
Other versions
FI95524C (fi
FI95524B (fi
FI884940A (fi
Inventor
Gerald P Labedz
David E Borth
Original Assignee
Motorola Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Motorola Inc filed Critical Motorola Inc
Publication of FI884940A0 publication Critical patent/FI884940A0/fi
Publication of FI884940A publication Critical patent/FI884940A/fi
Application granted granted Critical
Publication of FI95524B publication Critical patent/FI95524B/fi
Publication of FI95524C publication Critical patent/FI95524C/fi

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/0035—Synchronisation arrangements detecting errors in frequency or phase
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2662—Arrangements for Wireless System Synchronisation
    • H04B7/2671—Arrangements for Wireless Time-Division Multiple Access [TDMA] System Synchronisation
    • H04B7/2678—Time synchronisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/004—Synchronisation arrangements compensating for timing error of reception due to propagation delay
    • H04W56/005—Synchronisation arrangements compensating for timing error of reception due to propagation delay compensating for timing error by adjustment in the receiver

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Transmitters (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Optical Communication System (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
FI884940A 1987-12-04 1988-10-26 Nopea referenssitiedonkeruu ja vaihevirheen kompensointi datan radiolähetystä varten FI95524C (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/128,975 US4847869A (en) 1987-12-04 1987-12-04 Rapid reference acquisition and phase error compensation for radio transmission of data
US12897587 1987-12-04

Publications (4)

Publication Number Publication Date
FI884940A0 true FI884940A0 (fi) 1988-10-26
FI884940A FI884940A (fi) 1989-06-05
FI95524B FI95524B (fi) 1995-10-31
FI95524C FI95524C (fi) 1996-02-12

Family

ID=22437884

Family Applications (1)

Application Number Title Priority Date Filing Date
FI884940A FI95524C (fi) 1987-12-04 1988-10-26 Nopea referenssitiedonkeruu ja vaihevirheen kompensointi datan radiolähetystä varten

Country Status (8)

Country Link
US (1) US4847869A (fi)
EP (1) EP0318684B1 (fi)
JP (1) JP2904493B2 (fi)
AT (1) ATE110503T1 (fi)
CA (1) CA1295755C (fi)
DE (1) DE3851208T2 (fi)
ES (1) ES2058207T3 (fi)
FI (1) FI95524C (fi)

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FR2628916B1 (fr) * 1988-03-15 1990-06-29 Alcatel Thomson Faisceaux Dispositif de synchronisation en modulation de phase a quatre etats decalee
FR2633471B1 (fr) * 1988-06-28 1990-10-05 Trt Telecom Radio Electr Procede de demodulation coherente d'un signal module numeriquement en phase continue et a enveloppe constante
FR2650456A1 (fr) * 1989-07-28 1991-02-01 Trt Telecom Radio Electr Procede de synchronisation par correlation
IT1236978B (it) * 1989-12-22 1993-05-12 Italtel Spa Metodo e dispositivo per la sincronizzazione tra una stazione radio fissa ed una stazione mobile in un sistema radiomobile digitale
DE4013384A1 (de) * 1990-04-26 1991-10-31 Philips Patentverwaltung Empfaenger mit einer anordnung zur frequenzablagenschaetzung
US5150384A (en) * 1990-09-28 1992-09-22 Motorola, Inc. Carrier recovery method and apparatus having an adjustable response time determined by carrier signal parameters
US5148453A (en) * 1991-05-02 1992-09-15 The Institute For Space And Terrestrial Science Parallel sync detection
US5245611A (en) * 1991-05-31 1993-09-14 Motorola, Inc. Method and apparatus for providing carrier frequency offset compensation in a tdma communication system
US5299235A (en) * 1991-09-10 1994-03-29 Telefonaktiebolaget L M Ericsson Time synchronization of a receiver in a digital radio telephone system
DE4136147A1 (de) * 1991-11-02 1993-05-06 Robert Bosch Gmbh, 7000 Stuttgart, De Synchronisationsverfahren fuer ein mobilfunktelefon
JP3100447B2 (ja) * 1992-01-10 2000-10-16 三菱電機株式会社 適応等化器および受信機
DE4201194A1 (de) * 1992-01-18 1993-07-22 Sel Alcatel Ag Verfahren und schaltungsanordnung zur offset-korrektur in einem tdma-funkempfaenger
JP2959286B2 (ja) * 1992-07-02 1999-10-06 株式会社村田製作所 Ｄｑｐｓｋ遅延検波回路
JP2522144B2 (ja) * 1993-01-14 1996-08-07 日本電気株式会社 位相曖昧度除去回路
US5463627A (en) * 1993-02-23 1995-10-31 Matsushita Electric Industrial Co., Ltd. Frame synchronizing apparatus for quadrature modulation data communication radio receiver
EP0701745B1 (en) * 1993-06-04 1999-09-15 Rca Thomson Licensing Corporation Direct conversion tuner
FI96257C (fi) * 1994-04-13 1996-05-27 Nokia Telecommunications Oy Menetelmä radiotaajuisen signaalin vaihevirheen määrittämiseksi, sekä vastaanotin
EP0855116A4 (en) * 1995-10-12 2000-04-26 Next Level Comm PREAMBLE FOR BURST MODE
US5732112A (en) * 1995-12-28 1998-03-24 Globespan Technologies, Inc. Channel training of multi-channel receiver system
US5946354A (en) * 1996-10-18 1999-08-31 International Business Machines Corporation Hard disk drive read channel with half speed timing
US5898684A (en) * 1996-12-19 1999-04-27 Stanford Telecommunications, Inc. TDMA burst receiver
GB2326066A (en) * 1997-06-04 1998-12-09 Northern Telecom Ltd A communication network using correlation of two signals arriving at a node
AU732620B2 (en) * 1997-06-17 2001-04-26 Nokia Siemens Networks Gmbh & Co. Kg Method, mobile station and base station for frequency synchronization for a mobile station in a radio communications system
US6563856B1 (en) * 1998-07-08 2003-05-13 Wireless Facilities, Inc. Frame synchronization and detection technique for a digital receiver
US6137844A (en) * 1998-02-02 2000-10-24 Oki Telecom, Inc. Digital filter for noise and error removal in transmitted analog signals
US6263035B1 (en) 1998-02-02 2001-07-17 Oki Telecom, Inc. System and method for adjusting a phase angle of a recovered data clock signal from a received data signal
US6256304B1 (en) * 1998-03-31 2001-07-03 Nokia Mobile Phones, Limited Mobile station using synchronization word order information for improved channel acquisition
US6075826A (en) * 1998-05-13 2000-06-13 Comsat Corporation Method and apparatus for obtaining initial carrier and symbol phase estimates for use in synchronizing transmitting data
JP3120792B2 (ja) * 1998-09-11 2000-12-25 日本電気株式会社 スペクトラム拡散通信方法及びスペクトラム拡散通信装置
US7505437B2 (en) * 2002-02-26 2009-03-17 Qualcomm Incorporated Method and apparatus for enabling subscriber stations to process a synchronization channel in a spread spectrum communications system
US7139340B2 (en) * 2002-06-28 2006-11-21 Hitachi, Ltd. Robust OFDM carrier recovery methods and apparatus
US7248625B2 (en) * 2002-09-05 2007-07-24 Silicon Storage Technology, Inc. Compensation of I-Q imbalance in digital transceivers
FR2855684B1 (fr) * 2003-05-26 2005-07-01 Commissariat Energie Atomique Recepteur de signal ultra large bande et procede de reception associe.
KR100594146B1 (ko) * 2004-02-11 2006-06-28 삼성전자주식회사 비동기 이동통신 시스템에서 초기 주파수 옵셋 추정 장치및 방법
US7916811B2 (en) * 2004-02-11 2011-03-29 General Instrument Corporation Method and apparatus for improved burst acquisition in a digital receiver
JP4925462B2 (ja) * 2007-03-19 2012-04-25 株式会社日立国際電気 受信機
US20090109955A1 (en) * 2007-10-31 2009-04-30 Qualcomm Incorporated Method and apparatus for improved frame synchronization in a wireless communication network
US9008066B2 (en) * 2007-10-31 2015-04-14 Qualcomm, Incorporated Method and apparatus for signaling transmission characteristics in a wireless communication network
US10038586B2 (en) * 2016-11-30 2018-07-31 MMRFIC Technology Pvt. Ltd. Method and system for preamble detection in a baseband modulated digital communication system

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DE3121146A1 (de) * 1981-05-27 1983-01-05 Siemens AG, 1000 Berlin und 8000 München Digitales funksystem
US4414675A (en) * 1981-08-05 1983-11-08 Motorola, Inc. MSK and OK-QPSK signal demodulator
JPS58114654A (ja) * 1981-12-28 1983-07-08 Fujitsu Ltd 基準搬送波再生回路
JPS58194450A (ja) * 1982-05-07 1983-11-12 Nec Corp 復調装置
DE3302828A1 (de) * 1983-01-28 1984-08-02 Standard Elektrik Lorenz Ag, 7000 Stuttgart Empfangsgeraet
US4672638A (en) * 1983-10-24 1987-06-09 Nec Corporation Multipath canceller for cancelling a distortion caused to a radio frequency pulse by multipath transmission
US4606051A (en) * 1983-11-10 1986-08-12 Universal Data Systems, Inc. QPSK demodulator with I and Q post-detection data correction
JPS60154758A (ja) * 1984-01-25 1985-08-14 Alps Electric Co Ltd Ｐｓｋ復調装置
US4614910A (en) * 1984-03-12 1986-09-30 Victor Company Of Japan, Ltd. Quarternary differential PSK demodulator
US4599732A (en) * 1984-04-17 1986-07-08 Harris Corporation Technique for acquiring timing and frequency synchronization for modem utilizing known (non-data) symbols as part of their normal transmitted data format
US4707841A (en) * 1984-08-21 1987-11-17 University Of Toronto, Innovations Foundation Digital data receiver for preamble free data transmission
DE3432313A1 (de) * 1984-09-03 1986-03-13 Philips Patentverwaltung Gmbh, 2000 Hamburg Schaltungsanordnung zum synchronisieren eines signals
FR2571566B1 (fr) * 1984-10-09 1987-01-23 Labo Electronique Physique Dispositif de reception de donnees numeriques comportant un dispositif de recuperation adaptative de rythme
DE3444449A1 (de) * 1984-12-06 1986-06-12 Robert Bosch Gmbh, 7000 Stuttgart Demodulator fuer digitale empfaenger
US4631486A (en) * 1985-04-01 1986-12-23 Harris Corporation M-phase PSK vector processor demodulator
US4669091A (en) * 1986-02-10 1987-05-26 Rca Corporation Adaptive multipath distortion equalizer
US4704582A (en) * 1986-10-07 1987-11-03 Motorola, Inc. Gated demodulator for shaped BPSK signals
SE457399B (sv) * 1987-04-23 1988-12-19 Ericsson Telefon Ab L M Anordning i en koherrent mobiltelefonmottagare foer reducering av bitfel

Also Published As

Publication number Publication date
JPH022725A (ja) 1990-01-08
ATE110503T1 (de) 1994-09-15
FI95524C (fi) 1996-02-12
ES2058207T3 (es) 1994-11-01
DE3851208D1 (de) 1994-09-29
DE3851208T2 (de) 1995-03-09
EP0318684A3 (en) 1990-08-29
CA1295755C (en) 1992-02-11
US4847869A (en) 1989-07-11
EP0318684B1 (en) 1994-08-24
JP2904493B2 (ja) 1999-06-14
EP0318684A2 (en) 1989-06-07
FI95524B (fi) 1995-10-31
FI884940A (fi) 1989-06-05

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Legal Events

Date Code Title Description
FG Patent granted

Owner name: MOTOROLA, INC.

BB Publication of examined application
FG Patent granted

Owner name: MOTOROLA, INC.

MA Patent expired