無線通信システムにおけるソフト・ハンドオフのための受信された多元信号の等化

Title:

無線通信システムにおけるソフト・ハンドオフのための受信された多元信号の等化

Document Type and Number:

Japanese Patent JP5074544

Kind Code:

B2

Abstract:

Techniques for performing equalization of multiple signals received by a terminal in soft handoff with multiple base stations. The received signal at the terminal is conditioned and digitized to provide a stream of received samples (y m ), which is then equalized/filtered (410) with multiple sets of coefficients to provide multiple streams of transmit chip estimates (X k ). One set of coefficients (f k ) is provided for each base station and is used to provide a corresponding stream of transmit chip estimates. The multiple streams of transmit chip estimates are further processed (420) to provide multiple streams of data symbol estimates (d k ), one stream of data symbol estimates for each base station. The multiple streams of data symbol estimates are then scaled (430) with multiple scaling factors (± k ) and combined (432) to provide a stream of combined data symbol estimates (d k ). The processing for the multiple base stations may be performed by a single hardware unit in a time division multiplexed manner.

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Inventors:

Sricant Jayarman
John E. Smy
Ivan Jesus Fernandez-Covaton

Application Number:

JP2010047776A

Publication Date:

November 14, 2012

Filing Date:

March 04, 2010

Export Citation:

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Assignee:

QUALCOMM INCORPORATED

International Classes:

H04B1/707; H04B7/005; H04B7/02; H04J13/00; H04L25/03

Domestic Patent References:

JP11266232A

Foreign References:

WO2002009305A1
WO2001018986A1

Other References:

Jones W.JONES Jr., CHESTER C.Carroll,A Timed-Shared Digital Filter Realization,Computers, IEEE Transactions on,1969年11月,VOL.C-18, NO.11,pp.1027-1030

Attorney, Agent or Firm:

Kurata Masatoshi
Satoshi Kono
Makoto Nakamura
Yoshihiro Fukuhara
Takashi Mine
Toshio Shirane
Sadao Muramatsu
Nobuhisa Nogawa
Kocho Chojiro
Naoki Kono
Katsu Sunagawa
Katsumura Hiro
Tatsushi Sato
Takashi Okada
Mihoko Horiuchi
Takenori Masanori
Takuzo Ichihara
Yamashita Gen

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