Title:
METHOD AND APPARATUS FOR FILTERING NOISY ESTIMATES TO REDUCE ESTIMATION ERRORS
Document Type and Number:
Japanese Patent JP2012151865
Kind Code:
A
Abstract:
To filter noisy estimates to reduce estimation errors.
Input samples y(k) from a receiver are sent to a channel estimator 310 and to a data finite impulse response (FIR) filter 360. Within the channel estimator 310, an initial channel estimator 320 derives a channel impulse response estimate (CIRE) for a wireless channel between a base station and a wireless device; a channel IIR filter 330 is updated; and a computation unit 350 derives equalizer coefficients. Filtering is performed by the FIR filter 360 using data of these coefficients.
Inventors:
MAGEN GOKHAN
SUBRAHMANYA PARVATHANATHAN
VIJAYARAJ ALILAGHATTA-KANTHARAJ
NITIN KASTURI
SUBRAHMANYA PARVATHANATHAN
VIJAYARAJ ALILAGHATTA-KANTHARAJ
NITIN KASTURI
Application Number:
JP2012043265A
Publication Date:
August 09, 2012
Filing Date:
February 29, 2012
Export Citation:
Assignee:
QUALCOMM INC
International Classes:
H04B1/712; H03H17/02; H03H17/04; H03H21/00; H04B1/707; H04B1/711; H04B7/005
Domestic Patent References:
| JP2004538720A | 2004-12-24 |
Attorney, Agent or Firm:
Kurata Masatoshi
Takakura Shigeo
Satoshi Kono
Makoto Nakamura
Yoshihiro Fukuhara
Takashi Mine
Toshio Shirane
Sadao Muramatsu
Nobuhisa Nogawa
Kocho Chojiro
Naoki Kono
Katsu Sunagawa
Morisezo Iseki
Tatsushi Sato
Takashi Okada
Mihoko Horiuchi
Takenori Masanori
Takakura Shigeo
Satoshi Kono
Makoto Nakamura
Yoshihiro Fukuhara
Takashi Mine
Toshio Shirane
Sadao Muramatsu
Nobuhisa Nogawa
Kocho Chojiro
Naoki Kono
Katsu Sunagawa
Morisezo Iseki
Tatsushi Sato
Takashi Okada
Mihoko Horiuchi
Takenori Masanori
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