CA2273377A1 - Method and apparatus for channel estimation for multicarrier systems - Google Patents

Method and apparatus for channel estimation for multicarrier systems Download PDF

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Publication number
CA2273377A1
CA2273377A1 CA002273377A CA2273377A CA2273377A1 CA 2273377 A1 CA2273377 A1 CA 2273377A1 CA 002273377 A CA002273377 A CA 002273377A CA 2273377 A CA2273377 A CA 2273377A CA 2273377 A1 CA2273377 A1 CA 2273377A1
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Prior art keywords
channel
channel estimator
multicarrier
time
channel estimation
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Granted
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CA002273377A
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French (fr)
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CA2273377C (en
Inventor
Leonard Joseph Cimini Jr.
Ye Li
Nelson Ray Sollenberger
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AT&T Corp
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AT&T Corp
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Priority claimed from US09/089,862 external-priority patent/US6327314B1/en
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Publication of CA2273377A1 publication Critical patent/CA2273377A1/en
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Publication of CA2273377C publication Critical patent/CA2273377C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

A method and apparatus provide channel estimation for multicarrier systems. A minimum mean-square-error (MMSE) channel estimator makes full use of time-and frequency-domain correlations of the frequency response of time- varying dispersive fading channels. A robust channel estimator that is insensitive to the channel statistics is provided. The robust channel estimator can significantly improve the performance of a multicarrier system such as an orthogonal frequency division multiplexing (OFDM) modulation system in a rapid dispersive fading channel. In addition, the estimation process can employ a new reference generator which can select the source of the reference signal as being a decoded or undecoded signal depending on the correction success rate of the decoder.
CA002273377A 1998-06-03 1999-05-31 Method and apparatus for channel estimation for multicarrier systems Expired - Fee Related CA2273377C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/089,862 US6327314B1 (en) 1998-04-01 1998-06-03 Method and apparatus for channel estimation for multicarrier systems
US09/089,862 1998-06-03

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CA2273377A1 true CA2273377A1 (en) 1999-12-03
CA2273377C CA2273377C (en) 2003-04-15

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CA002273377A Expired - Fee Related CA2273377C (en) 1998-06-03 1999-05-31 Method and apparatus for channel estimation for multicarrier systems

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007112585A1 (en) * 2006-04-05 2007-10-11 Research In Motion Limited Method and receiver for estimating the channel impulse response using a constant modulus interference removal iteration
US7672412B2 (en) 2006-04-05 2010-03-02 Research In Motion Limited Method and receiver for estimating the channel impulse response using a constant modulus interference removal iteration
GB2475801A (en) * 2008-10-08 2011-06-01 Samsung Electronics Co Ltd Estimating link quality using a pilot interpolation scheme based on carrier and time fading correlations
CN117155498A (en) * 2023-10-30 2023-12-01 武汉能钠智能装备技术股份有限公司 Channel joint parameter processing method and device for distributed receiver

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007112585A1 (en) * 2006-04-05 2007-10-11 Research In Motion Limited Method and receiver for estimating the channel impulse response using a constant modulus interference removal iteration
US7672412B2 (en) 2006-04-05 2010-03-02 Research In Motion Limited Method and receiver for estimating the channel impulse response using a constant modulus interference removal iteration
US7970078B2 (en) * 2006-04-05 2011-06-28 Research In Motion Limited Method and receiver for estimating the channel impulse response using a constant modulus interference removal iteration
US8184744B2 (en) 2006-04-05 2012-05-22 Research In Motion Limited Method and receiver for estimating the channel impulse response using a constant modulus interference removal iteration
US8842776B2 (en) 2006-04-05 2014-09-23 Blackberry Limited Method and receiver for estimating the channel impulse response using a constant modulus interference removal iteration
GB2475801A (en) * 2008-10-08 2011-06-01 Samsung Electronics Co Ltd Estimating link quality using a pilot interpolation scheme based on carrier and time fading correlations
GB2475801B (en) * 2008-10-08 2012-01-18 Samsung Electronics Co Ltd Estimating link qualities in multi-carrier systems
CN117155498A (en) * 2023-10-30 2023-12-01 武汉能钠智能装备技术股份有限公司 Channel joint parameter processing method and device for distributed receiver
CN117155498B (en) * 2023-10-30 2024-03-22 武汉能钠智能装备技术股份有限公司 Channel joint parameter processing method and device for distributed receiver

Also Published As

Publication number Publication date
CA2273377C (en) 2003-04-15

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