TW589812B - Frequency offset estimation for communication systems method and device for inter symbol interference - Google Patents

Frequency offset estimation for communication systems method and device for inter symbol interference Download PDF

Info

Publication number
TW589812B
TW589812B TW92102178A TW92102178A TW589812B TW 589812 B TW589812 B TW 589812B TW 92102178 A TW92102178 A TW 92102178A TW 92102178 A TW92102178 A TW 92102178A TW 589812 B TW589812 B TW 589812B
Authority
TW
Taiwan
Prior art keywords
frequency offset
device
offset estimation
communication systems
symbol interference
Prior art date
Application number
TW92102178A
Other versions
TW200302637A (en
Inventor
Hung-Kun Chen
Original Assignee
Integrated Programmable Commun
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
Priority to US10/062,116 priority Critical patent/US6990156B2/en
Application filed by Integrated Programmable Commun filed Critical Integrated Programmable Commun
Publication of TW200302637A publication Critical patent/TW200302637A/en
Application granted granted Critical
Publication of TW589812B publication Critical patent/TW589812B/en

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/0014Carrier regulation
    • CCHEMISTRY; METALLURGY
    • C30CRYSTAL GROWTH
    • C30BSINGLE-CRYSTAL-GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B25/00Single-crystal growth by chemical reaction of reactive gases, e.g. chemical vapour-deposition growth
    • C30B25/02Epitaxial-layer growth
    • C30B25/18Epitaxial-layer growth characterised by the substrate
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/0014Carrier regulation
    • H04L2027/0044Control loops for carrier regulation
    • H04L2027/0063Elements of loops
    • H04L2027/0065Frequency error detectors

Abstract

A frequency offset estimation based on state-based differential accumulation and the device thereof are disclosed. The concept of the sate-based operation is introduced by mathematical derivations. The knowledge of received data symbols and timing is utilized. Then the detailed operations are also given by both equations and conceptual descriptions. It is unnecessary to estimate the channel jointly or concurrently, while the differential operation over the received samples of the same state is performed. Such operation is obviously much simpler and easier to implement in VLSI than all the other techniques.
TW92102178A 2001-08-15 2003-01-30 Frequency offset estimation for communication systems method and device for inter symbol interference TW589812B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US10/062,116 US6990156B2 (en) 2001-08-15 2002-01-30 Frequency offset estimation for communication systems method and device for inter symbol interference

Publications (2)

Publication Number Publication Date
TW200302637A TW200302637A (en) 2003-08-01
TW589812B true TW589812B (en) 2004-06-01

Family

ID=27610253

Family Applications (1)

Application Number Title Priority Date Filing Date
TW92102178A TW589812B (en) 2001-08-15 2003-01-30 Frequency offset estimation for communication systems method and device for inter symbol interference

Country Status (1)

Country Link
TW (1) TW589812B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8125961B2 (en) 2005-10-25 2012-02-28 Qualcomm Incorporated Four way handshake for robust channel estimation and rate prediction
TWI499251B (en) * 2012-12-17 2015-09-01 Mstar Semiconductor Inc Carrier and sampling frequency offsets estimating method and associated apparatus applied to multi-carrier communication system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8125961B2 (en) 2005-10-25 2012-02-28 Qualcomm Incorporated Four way handshake for robust channel estimation and rate prediction
TWI499251B (en) * 2012-12-17 2015-09-01 Mstar Semiconductor Inc Carrier and sampling frequency offsets estimating method and associated apparatus applied to multi-carrier communication system

Also Published As

Publication number Publication date
TW200302637A (en) 2003-08-01

Similar Documents

Publication Publication Date Title
US6885708B2 (en) Training prefix modulation method and receiver
CN101189847B (en) Precision timing acquisition
EP0827655B1 (en) Method and apparatus for joint frequency offset and timing estimation of a multicarrier modulation system
US6320919B1 (en) Adaptive channel characterization using decoded symbols
US20070297522A1 (en) Method for Signal Processing and a Signal Processor in an Ofdm System
EP1197050B1 (en) Synchronisation and detection of modulation type
US7082159B2 (en) Methods and arrangements in a telecommunications system
EP1617611B1 (en) Propagation path estimation method and apparatus
US20040208267A1 (en) Frequency synchronization apparatus and method for OFDM systems
JP2008501272A (en) Channel estimation in OFDM systems with high Doppler shift
US7327700B2 (en) Flexible multi-channel multi-thread media access controller and physical layer interface for wireless networks
EP2067327B1 (en) Detection of time-frequency hopping patterns
DE60216274T2 (en) Fast exchange detection
US7940848B2 (en) System having an OFDM channel estimator
CN101150347B (en) Communication system and its transmitting channel estimation method
JP2007049753A (en) Single-user detection
US7027519B2 (en) Iterative maximum likelihood channel estimation and signal detection for OFDM systems
US7627067B2 (en) Maximum likelihood synchronization for a communications system using a pilot symbol
EP1624633B1 (en) OFDM receiver with intersymbol interference suppression
US20090225741A1 (en) Wireless system using a new type of preamble for a burst frame
CN1221084C (en) Method of forming channel estimate, and receiver
CN101447963B (en) Device for and method of signal synchronization in a communication system
EP0793359A2 (en) Method and apparatus for block decision feedback equalisation using a Cholesky algorithm
ES2255010T3 (en) Channel estimation for system division duplex comunicaion time.
US6327314B1 (en) Method and apparatus for channel estimation for multicarrier systems

Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees