logo

For the Inventor, By the Inventor

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.

Patent No.:

US 9025554 B1

PDFFull Text
Expired
Date of Patent:
May. 05, 2015

Filed:

Aug. 04, 2011

Wireless base station and wireless communication method

Applicants:

Yoshizo Sato, Daito, JP;

Masaaki Nakata, Yamato, JP;

Nobuaki Takamatsu, Koto-ku, JP;

Masahiro Yagi, Kawasaki, JP;

Hiroki Fujita, Yokohama, JP;

Inventors:

Yoshizo Sato, Daito, JP;

Masaaki Nakata, Yamato, JP;

Nobuaki Takamatsu, Koto-ku, JP;

Masahiro Yagi, Kawasaki, JP;

Hiroki Fujita, Yokohama, JP;

Assignee:

KYOCERA Corporation, Kyoto, JP;

Attorney:

Procopio, Cory, Hargreaves & Savitch LLP

Primary Examiner:

Charles C Jiang

Assistant Examiner:

Mohamed Kamara

Int. Cl.
CPC ...
H04W 72/04 (2009.01); H04L 5/00 (2006.01); H04L 25/02 (2006.01); H04L 1/18 (2006.01); H04W 16/28 (2009.01); H04W 88/08 (2009.01); H04B 7/06 (2006.01);
U.S. Cl.
CPC ...
H04W 72/042 (2013.01); H04L 5/0051 (2013.01); H04L 25/0212 (2013.01); H04L 25/0224 (2013.01); H04W 16/28 (2013.01); H04W 88/08 (2013.01); H04B 7/0617 (2013.01); H04L 1/1854 (2013.01);
Abstract

A transmission path state estimation unit estimates a state of a transmission path to a wireless terminal based on a DRS (Demodulation Reference Signal) included in uplink user data received from the wireless terminal when a re-sending request is received after transmission of an SRS is stopped. A transmission unit forms directivity of a plurality of antennas based on the estimated state of the transmission path and transmits downlink user data.

Find Patent Forward Citations

Sato, Yoshizo. (2015). Wireless base station and wireless communication method (U.S. Patent No. 9025554). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9025554

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…