AR019183A1 - Metodo , aparato y disposicion para determinar una localizacion de una senal de sincronizacion de frecuencias entre los datos transmitidos desde eltransmisor y recibidos por el receptor en una red de comunicaciones. - Google Patents

Metodo , aparato y disposicion para determinar una localizacion de una senal de sincronizacion de frecuencias entre los datos transmitidos desde eltransmisor y recibidos por el receptor en una red de comunicaciones.

Info

Publication number
AR019183A1
AR019183A1 ARP990103141A ARP990103141A AR019183A1 AR 019183 A1 AR019183 A1 AR 019183A1 AR P990103141 A ARP990103141 A AR P990103141A AR P990103141 A ARP990103141 A AR P990103141A AR 019183 A1 AR019183 A1 AR 019183A1
Authority
AR
Argentina
Prior art keywords
transmitter
receiver
frequency
location
synchronization signal
Prior art date
Application number
ARP990103141A
Other languages
English (en)
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of AR019183A1 publication Critical patent/AR019183A1/es

Links

Classifications

    • 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
    • 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
    • H04B7/2675—Frequency synchronisation
    • 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
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/04—Speed or phase control by synchronisation signals
    • H04L7/041—Speed or phase control by synchronisation signals using special codes as synchronising signal
    • H04L7/042—Detectors therefor, e.g. correlators, state machines
    • 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
    • H04L2027/0063—Elements of loops
    • H04L2027/0065—Frequency error detectors

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

Método, aparato y sistema de una senal de sincronizacion de frecuencias en un marco de datos transmitidos desde el transmisor y recibidos por un receptoren un sistema de comunicaciones que incluye por lo menos un transmisor y por lo menos un receptor. Se calcula un valor pico que representa una senal desincronizacion de frecuencias transmitida del transmisor al receptor. Se estima una compensacion de frecuencia entre una frecuencia portadora del transmisor yuna referencia de frecuencia del receptor, junto con un factor de calidad correspondiente a la compensacion de frecuencia estimada. Se toma una determinacionen cuanto a si el valor pico es mayor o igual a un umbral de pico y si el factor de calidad es menor o igual a un umbral de calidad. Cuando se cumplen las doscondiciones predeterminadas de umbral, se almacenan el valor pico, la compensacion de frecuencias y el factor de calidad. Cuando no se cumple cualquiera de lascondiciones de umbral, la localizacion de la senal de sincronizacion de frecuencias corresponde a la localizacion de un valor pico máximo almacenado y unfactor de calidad mínimo almacenado.
ARP990103141A 1998-06-29 1999-06-29 Metodo , aparato y disposicion para determinar una localizacion de una senal de sincronizacion de frecuencias entre los datos transmitidos desde eltransmisor y recibidos por el receptor en una red de comunicaciones. AR019183A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/106,227 US6356608B1 (en) 1998-06-29 1998-06-29 Method, apparatus, and system for determining a location of a frequency synchronization signal

Publications (1)

Publication Number Publication Date
AR019183A1 true AR019183A1 (es) 2001-12-26

Family

ID=22310245

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP990103141A AR019183A1 (es) 1998-06-29 1999-06-29 Metodo , aparato y disposicion para determinar una localizacion de una senal de sincronizacion de frecuencias entre los datos transmitidos desde eltransmisor y recibidos por el receptor en una red de comunicaciones.

Country Status (17)

Country Link
US (1) US6356608B1 (es)
EP (1) EP1092289B1 (es)
JP (1) JP4149671B2 (es)
KR (1) KR100614553B1 (es)
CN (1) CN1122380C (es)
AR (1) AR019183A1 (es)
AT (1) ATE353497T1 (es)
AU (1) AU757757B2 (es)
BR (1) BR9911714A (es)
DE (1) DE69935072T2 (es)
EE (1) EE200000781A (es)
ES (1) ES2279622T3 (es)
HK (1) HK1041122B (es)
IL (1) IL140408A (es)
MY (1) MY120816A (es)
TR (1) TR200100371T2 (es)
WO (1) WO2000001095A1 (es)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1045534A1 (en) * 1999-03-04 2000-10-18 Lucent Technologies Inc. Method to determine the position of a constant frequency interval in a telecommunication signal
US7010061B2 (en) * 1999-12-30 2006-03-07 Infineon Technologies Ag Configurable all-digital coherent demodulator system for spread spectrum applications
US6795428B1 (en) * 2000-01-07 2004-09-21 Ericsson Inc. Fast notification access channel for realtime users in EGPRS networks
US6604056B2 (en) * 2001-02-01 2003-08-05 Drs Power & Control Technologies, Inc. Method and system of harmonic regulation
JP4396801B2 (ja) * 2001-02-27 2010-01-13 パイオニア株式会社 測位装置と測位方法及び測位システム
EP1282258A1 (en) * 2001-08-02 2003-02-05 Mitsubishi Electric Information Technology Centre Europe B.V. Method and apparatus for synchronising receivers
US7110478B2 (en) * 2002-04-09 2006-09-19 Spreadtrum Communications Corporation Phase difference based frequency correction channel detector for wireless communication system
US7092377B2 (en) * 2002-04-24 2006-08-15 Spreadtrum Communications Corporation Bi-directional time slot estimator for wireless communication system
US7062282B2 (en) * 2002-07-19 2006-06-13 Mediatek, Inc. Method and apparatus for frequency synchronization in a digital transmission system
US20040203870A1 (en) * 2002-08-20 2004-10-14 Daniel Aljadeff Method and system for location finding in a wireless local area network
US7733991B2 (en) * 2003-11-03 2010-06-08 St-Ericsson Sa Apparatus for determining a frequency offset error and receiver based thereon
US20050129149A1 (en) * 2003-12-12 2005-06-16 Kuntz Thomas L. Detecting GSM downlink signal frequency correction burst
US20050238060A1 (en) * 2004-04-23 2005-10-27 Kuntz Thomas L Synchronizing to GSM RF downlink signal frame timing
US7499423B1 (en) * 2004-06-10 2009-03-03 Cisco Technology, Inc. (Us) System and method for clock distribution and synchronization and radio location
US9025638B2 (en) * 2004-06-16 2015-05-05 Telefonaktiebolaget L M Ericsson (Publ) Method and apparatus to compensate for receiver frequency error in noise estimation processing
TWI256815B (en) * 2004-07-27 2006-06-11 Mediatek Inc Frequency synchronization device and the method thereof
EP1633096A1 (fr) * 2004-08-26 2006-03-08 St Microelectronics S.A. Détermination de fréquences de porteuses et de symboles dans un signal
US20060104537A1 (en) * 2004-11-12 2006-05-18 Sozotek, Inc. System and method for image enhancement
US8155600B2 (en) * 2007-12-03 2012-04-10 Texas Instruments Incorporated Digital communication using an inexpensive reference crystal
US8914038B2 (en) * 2009-02-11 2014-12-16 Telefonaktiebolaget L M Ericsson (Publ) Method and arrangement for determining terminal position
US9065630B1 (en) * 2012-09-27 2015-06-23 Marvell International Ltd. Systems and methods for detecting secondary synchronization signals in a wireless communication system
CN102970258B (zh) * 2012-12-11 2015-08-12 北京北方烽火科技有限公司 一种频偏估计方法和装置
US9037092B2 (en) * 2013-09-30 2015-05-19 Broadcom Corporation Method, apparatus and computer program for determining whether a received signal comprises a first signal component
WO2019158357A1 (en) * 2018-02-16 2019-08-22 Koninklijke Philips N.V. Improved carrier phase tracking using multiple carriers
CN111131106B (zh) * 2018-10-31 2022-08-30 中国科学院上海高等研究院 通信信号的频偏估计方法、系统、存储介质及接收装置

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4468625A (en) * 1981-10-26 1984-08-28 Texas Instruments Incorporated Circuit for detecting synchronization pulses in a composite signal
US4527275A (en) 1982-02-12 1985-07-02 Arinc Research Corporation Correlation data communications system
EP0387720B1 (de) 1989-03-16 1993-12-01 Siemens Aktiengesellschaft Schaltung zur Erkennung eines Frequenzreferenzsignals
DE4127501A1 (de) 1990-09-07 1992-03-12 Telefunken Systemtechnik Verfahren zur erkennung der frequenzablage bei digitalen nachrichtenuebertragungen
AU636263B2 (en) 1990-12-17 1993-04-22 Motorola, Inc. Frequency and time slot synchronization using adaptive filtering
US5390216A (en) 1991-11-02 1995-02-14 Robert Bosch Gmbh Synchronization method for a mobile radiotelephone
JP2812347B2 (ja) 1992-02-17 1998-10-22 日本電気株式会社 再同期復調装置
JP2731722B2 (ja) 1994-05-26 1998-03-25 日本電気株式会社 クロック周波数自動制御方式及びそれに用いる送信装置と受信装置
TW266365B (en) 1994-12-16 1995-12-21 At & T Corp Coarse frequency burst detector for a wireless communications system, such as for use with GSM
JPH08331114A (ja) 1995-05-31 1996-12-13 Kokusai Electric Co Ltd 相関ピーク判定回路
US5761250A (en) 1995-08-15 1998-06-02 Rockwell International Corporation Iterative filtering frequency estimator and estimation method
JP3024524B2 (ja) 1995-09-25 2000-03-21 日本電気株式会社 キャリア同期ユニット及び同期方法
GB2315198B (en) 1996-07-09 2001-02-14 Nec Technologies GSM coarse time and frequency synchronisation
US5884178A (en) 1996-11-27 1999-03-16 Telefonaktiebolaget L M Ericsson (Publ) Method and apparatus for estimating speed of a mobile station in a cellular communications system
KR100239475B1 (ko) * 1996-12-31 2000-01-15 구자홍 에이치디 티브이의 동기신호 검출장치

Also Published As

Publication number Publication date
ATE353497T1 (de) 2007-02-15
DE69935072D1 (de) 2007-03-22
KR100614553B1 (ko) 2006-08-23
IL140408A (en) 2005-11-20
EP1092289A1 (en) 2001-04-18
AU757757B2 (en) 2003-03-06
MY120816A (en) 2005-11-30
US6356608B1 (en) 2002-03-12
BR9911714A (pt) 2001-03-20
HK1041122A1 (en) 2002-06-28
ES2279622T3 (es) 2007-08-16
JP2002519935A (ja) 2002-07-02
HK1041122B (zh) 2004-06-25
CN1122380C (zh) 2003-09-24
JP4149671B2 (ja) 2008-09-10
EE200000781A (et) 2002-04-15
TR200100371T2 (tr) 2001-07-23
WO2000001095A1 (en) 2000-01-06
CN1314033A (zh) 2001-09-19
IL140408A0 (en) 2002-02-10
DE69935072T2 (de) 2007-06-06
KR20010053243A (ko) 2001-06-25
EP1092289B1 (en) 2007-02-07
AU4943499A (en) 2000-01-17

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