FI884940A0 - Snabb referensackvisition och kompensation av fastel för radiotransmission av data - Google Patents
Snabb referensackvisition och kompensation av fastel för radiotransmission av dataInfo
- 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
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)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Time-Division Multiplex Systems (AREA)
- Optical Communication System (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Mobile Radio Communication Systems (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12897587 | 1987-12-04 | ||
US07/128,975 US4847869A (en) | 1987-12-04 | 1987-12-04 | Rapid reference acquisition and phase error compensation for radio transmission of data |
Publications (4)
Publication Number | Publication Date |
---|---|
FI884940A0 true FI884940A0 (sv) | 1988-10-26 |
FI884940A FI884940A (sv) | 1989-06-05 |
FI95524B FI95524B (sv) | 1995-10-31 |
FI95524C FI95524C (sv) | 1996-02-12 |
Family
ID=22437884
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI884940A FI95524C (sv) | 1987-12-04 | 1988-10-26 | Snabb referensackvisition och kompensation av fastel för radiotransmission av data |
Country Status (8)
Country | Link |
---|---|
US (1) | US4847869A (sv) |
EP (1) | EP0318684B1 (sv) |
JP (1) | JP2904493B2 (sv) |
AT (1) | ATE110503T1 (sv) |
CA (1) | CA1295755C (sv) |
DE (1) | DE3851208T2 (sv) |
ES (1) | ES2058207T3 (sv) |
FI (1) | FI95524C (sv) |
Families Citing this family (40)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2219469A (en) * | 1988-06-02 | 1989-12-06 | Philips Electronic Associated | A decision feedback equaliser and a method of operating a decision feedback equaliser |
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 |
US5999802A (en) * | 1993-06-04 | 1999-12-07 | Rca Thomson Licensing Corporation | Direct conversion tuner |
FI96257C (sv) * | 1994-04-13 | 1996-05-27 | Nokia Telecommunications Oy | Förfarande för att bestämma fasfelet hos en radiofrekventsignal, samt en mottagare |
US6084852A (en) * | 1995-10-12 | 2000-07-04 | Next Level Communications | Burst mode preamble |
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 |
JP3953533B2 (ja) * | 1997-06-17 | 2007-08-08 | シーメンス アクチエンゲゼルシヤフト | 無線通信システムにおける移動局のための周波数同期のための方法、移動局及び基地局 |
US6563856B1 (en) * | 1998-07-08 | 2003-05-13 | Wireless Facilities, Inc. | Frame synchronization and detection technique for a digital receiver |
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 |
US6137844A (en) * | 1998-02-02 | 2000-10-24 | Oki Telecom, Inc. | Digital filter for noise and error removal in transmitted analog signals |
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 |
US9008066B2 (en) * | 2007-10-31 | 2015-04-14 | Qualcomm, Incorporated | Method and apparatus for signaling transmission characteristics in a wireless communication network |
US9001815B2 (en) * | 2007-10-31 | 2015-04-07 | 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 |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4122393A (en) * | 1977-05-11 | 1978-10-24 | Ncr Corporation | Spread spectrum detector |
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 |
-
1987
- 1987-12-04 US US07/128,975 patent/US4847869A/en not_active Expired - Lifetime
-
1988
- 1988-08-31 CA CA000576174A patent/CA1295755C/en not_active Expired - Lifetime
- 1988-10-17 AT AT88117269T patent/ATE110503T1/de not_active IP Right Cessation
- 1988-10-17 EP EP88117269A patent/EP0318684B1/en not_active Expired - Lifetime
- 1988-10-17 DE DE3851208T patent/DE3851208T2/de not_active Expired - Fee Related
- 1988-10-17 ES ES88117269T patent/ES2058207T3/es not_active Expired - Lifetime
- 1988-10-26 FI FI884940A patent/FI95524C/sv not_active IP Right Cessation
- 1988-12-02 JP JP63305901A patent/JP2904493B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH022725A (ja) | 1990-01-08 |
JP2904493B2 (ja) | 1999-06-14 |
CA1295755C (en) | 1992-02-11 |
EP0318684B1 (en) | 1994-08-24 |
EP0318684A3 (en) | 1990-08-29 |
ATE110503T1 (de) | 1994-09-15 |
FI95524B (sv) | 1995-10-31 |
FI95524C (sv) | 1996-02-12 |
FI884940A (sv) | 1989-06-05 |
DE3851208D1 (de) | 1994-09-29 |
US4847869A (en) | 1989-07-11 |
DE3851208T2 (de) | 1995-03-09 |
ES2058207T3 (es) | 1994-11-01 |
EP0318684A2 (en) | 1989-06-07 |
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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 |