WO2002033854A3 - Compensation for time drift in a digital communication system - Google Patents

Compensation for time drift in a digital communication system Download PDF

Info

Publication number
WO2002033854A3
WO2002033854A3 PCT/EP2001/012114 EP0112114W WO0233854A3 WO 2002033854 A3 WO2002033854 A3 WO 2002033854A3 EP 0112114 W EP0112114 W EP 0112114W WO 0233854 A3 WO0233854 A3 WO 0233854A3
Authority
WO
WIPO (PCT)
Prior art keywords
time drift
compensation
communication system
digital communication
clock
Prior art date
Application number
PCT/EP2001/012114
Other languages
French (fr)
Other versions
WO2002033854A2 (en
Inventor
Joakim Persson
Leif Wilhelmsson
Original Assignee
Ericsson Telefon Ab L M
Joakim Persson
Leif Wilhelmsson
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, Joakim Persson, Leif Wilhelmsson filed Critical Ericsson Telefon Ab L M
Priority to AU2002215963A priority Critical patent/AU2002215963A1/en
Publication of WO2002033854A2 publication Critical patent/WO2002033854A2/en
Publication of WO2002033854A3 publication Critical patent/WO2002033854A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/0054—Detection of the synchronisation error by features other than the received signal transition
    • 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
    • H04B7/2668—Arrangements for Wireless Code-Division Multiple Access [CDMA] System Synchronisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/0016—Arrangements for synchronising receiver with transmitter correction of synchronization errors
    • H04L7/002—Arrangements for synchronising receiver with transmitter correction of synchronization errors correction by interpolation
    • H04L7/0029—Arrangements for synchronising receiver with transmitter correction of synchronization errors correction by interpolation interpolation of received data signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)

Abstract

A time drift in sampling a received signal that is caused by a relative difference between a transmitter clock and a receiver clock is compensated by estimating a frequency offset between the transmitter clock and the receiver clock, and using the estimated frequency offset to determine a time drift estimate. The time drift estimate is then used to adjust a sampling phase during receipt of the signal. This adjustment may be performed for each sample. Alternatively, the adjustment may be performed only after first receiving a number of samples.
PCT/EP2001/012114 2000-10-20 2001-10-19 Compensation for time drift in a digital communication system WO2002033854A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002215963A AU2002215963A1 (en) 2000-10-20 2001-10-19 Compensation for time drift in a digital communication system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US69261900A 2000-10-20 2000-10-20
US09/692,619 2000-10-20

Publications (2)

Publication Number Publication Date
WO2002033854A2 WO2002033854A2 (en) 2002-04-25
WO2002033854A3 true WO2002033854A3 (en) 2003-08-28

Family

ID=24781321

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2001/012114 WO2002033854A2 (en) 2000-10-20 2001-10-19 Compensation for time drift in a digital communication system

Country Status (2)

Country Link
AU (1) AU2002215963A1 (en)
WO (1) WO2002033854A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8949074B2 (en) 2005-12-20 2015-02-03 The Nielsen Company (Us), Llc Methods and systems for testing ability to conduct a research operation

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006054268A1 (en) * 2004-11-19 2006-05-26 Koninklijke Philips Electronics, N.V. Method and system for synchronizing a local clock in a wireless device to host clock in a wireless host
US20100002679A1 (en) * 2006-09-19 2010-01-07 Nxp Bv Method and system for synchronizing a local clock in a wireless device to a host clock in a wireless host
US8667318B2 (en) * 2007-05-14 2014-03-04 Picongen Wireless, Inc. Method and apparatus for wireless clock regeneration
CN111726793B (en) * 2020-06-17 2021-07-30 翱捷科技股份有限公司 Timing deviation compensation method and device and electronic equipment
CN115361037B (en) * 2022-10-20 2023-02-03 长沙驰芯半导体科技有限公司 Ultra-wideband RAKE receiving method and device under slow fading channel

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5103465A (en) * 1989-08-25 1992-04-07 Motorola, Inc. Symbol synchronization circuit
US5353312A (en) * 1991-12-27 1994-10-04 At&T Bell Laboratories Equalizer-based timing recovery
WO1999014897A2 (en) * 1997-09-17 1999-03-25 Telefonaktiebolaget Lm Ericsson (Publ) Frequency hopping piconets in an uncoordinated wireless multi-user system
US6134286A (en) * 1997-10-14 2000-10-17 Ericsson Inc. Synchronization techniques and systems for radiocommunication

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5103465A (en) * 1989-08-25 1992-04-07 Motorola, Inc. Symbol synchronization circuit
US5353312A (en) * 1991-12-27 1994-10-04 At&T Bell Laboratories Equalizer-based timing recovery
WO1999014897A2 (en) * 1997-09-17 1999-03-25 Telefonaktiebolaget Lm Ericsson (Publ) Frequency hopping piconets in an uncoordinated wireless multi-user system
US6134286A (en) * 1997-10-14 2000-10-17 Ericsson Inc. Synchronization techniques and systems for radiocommunication

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8949074B2 (en) 2005-12-20 2015-02-03 The Nielsen Company (Us), Llc Methods and systems for testing ability to conduct a research operation

Also Published As

Publication number Publication date
WO2002033854A2 (en) 2002-04-25
AU2002215963A1 (en) 2002-04-29

Similar Documents

Publication Publication Date Title
CA2440750A1 (en) Time acquisition in a wireless position determination system
EP2348649B1 (en) System and method for Doppler offset compensation in a TDMA system
AU2001262857A1 (en) A receiver
EP1049301A3 (en) Sampling clock correction in a multicarrier receiver
TW200605583A (en) Systems and methods for frequency acquisition in a wireless communication network
WO2001073467A3 (en) Accurate gps time estimate based on information from a wireless communications system
EP1058399A3 (en) Spread spectrum communication system
WO2001056239A3 (en) Clock synchronization, frequency synchronization, channel sounder and equalizer for ofdm using pilots equidistant in the frequency domain
EP1073216A3 (en) Method for synchronizing base stations of a radio communication system
AU2001249449A1 (en) Providing time synchronization to a gps locator
AU2002218611A1 (en) Timing drift compensation in wireless packet-based systems
WO2003021934A3 (en) System for parameter estimation and tracking of interfering digitally modulated signals
WO2001067745A3 (en) Synchronization for digital cable network
WO2005053258A3 (en) Method and apparatus of frequency estimation for the downlink of td-scdma systems
WO2006122499A8 (en) Method and system of locking clock
WO2004023679A3 (en) Compensating for frequency shift and timing shift in frequency and time tracking loops based on mobile unit velocity
WO2006137023A3 (en) Method and apparatus for synchronization in wireless communication system
WO2005057943A3 (en) Frequency and timing error estimation and corresponding channel characterization in a communication system
WO2002080414A3 (en) A method and system of automatic delay detection and receiver adjustment for synchronous bus interface
WO2002076056A3 (en) Method for the frequency and time synchronization of an ofdm receiver
CA2383787A1 (en) Quality measurement of circuit-switched service in cellular radio network
WO2002033854A3 (en) Compensation for time drift in a digital communication system
EP1395072A4 (en) Radio communication apparatus and its reception timing estimating method
ATE202879T1 (en) METHOD FOR TRANSPARENTLY TRANSMITTING AN INCOMING CLOCK SIGNAL OVER A NETWORK, AND RELATED CIRCUITS FOR RECEIVING AND TRANSMITTING
CA2399543A1 (en) System and method for sampling phase adjustment by an analog modem

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AE AG AL AM AT AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ CZ DE DE DK DK DM DZ EC EE EE ES FI FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PH PL PT RO RU SD SE SG SI SK SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP