The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 19, 2006

Filed:

Mar. 13, 2003
Applicants:

Hiromasa Fujii, Yokosuka, JP;

Tetsushi Abe, Yokohama, JP;

Shigeru Tomisato, Yokohama, JP;

Hirohito Suda, Yokosuka, JP;

Inventors:

Hiromasa Fujii, Yokosuka, JP;

Tetsushi Abe, Yokohama, JP;

Shigeru Tomisato, Yokohama, JP;

Hirohito Suda, Yokosuka, JP;

Assignee:

NTT DoCoMo, Inc., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 1/02 (2006.01); H03D 3/22 (2006.01);
U.S. Cl.
CPC ...
Abstract

The accuracy of an equalization start timing, an equalization duration and a channel estimation is improved in an application including an increased number of users. An equalization start timing tan equalization duration te and channel H estimation are performed for each user signal, and using these, received signal replicas Rero Refor the respective users are generated. The replicas are subtracted from the received signal to provide an error signal, and Reto Reare added to Es to provide an interference suppressed received signals for the usersto N. to, te, H and Reto Reare generated from these to generate Es in a repeated fashion to improve the accuracy of tte and H.


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