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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 8855229 B1

PDFFull Text
Date of Patent:
Oct. 07, 2014

Filed:

Jan. 31, 2011

Method and device for transmitting/receiving information in closed-loop multi-antenna system

Applicants:

Ranran Zhang, Beijing, CN;

Deshan Miao, Beijing, CN;

Qiubin Gao, Beijing, CN;

Meifang Jing, Beijing, CN;

Rakesh Tamrakar, Beijing, CN;

Inventors:

Ranran Zhang, Beijing, CN;

Deshan Miao, Beijing, CN;

Qiubin Gao, Beijing, CN;

Meifang Jing, Beijing, CN;

Rakesh Tamrakar, Beijing, CN;

Assignee:

China Academy of Telecommunications Technology, Beijing, CN;

Attorney:

Kilpatrick Townsend & Stockton LLP

Primary Examiner:

Khai Tran

Int. Cl.
CPC ...
H04L 27/00 (2006.01); H04B 7/06 (2006.01); H04B 7/04 (2006.01); H04L 25/03 (2006.01);
U.S. Cl.
CPC ...
H04B 7/0639 (2013.01); H04B 7/0469 (2013.01); H04B 7/0478 (2013.01); H04L 25/03343 (2013.01); H04B 7/0417 (2013.01); H04B 7/0465 (2013.01);
Abstract

The present invention discloses a method for transmitting information in a closed loop multiple antenna system. The method includes that: a transmission apparatus receives information transmitted from a reception apparatus, wherein the information includes codeword index information; the transmission apparatus selects a corresponding codeword from a double-layer-structure-based codebook according to the codeword index information; the transmission apparatus generates a precoding matrix according to the selected codeword; the transmission apparatus performs precoding for data to be transmitted according to the precoding matrix; the transmission apparatus transmits the precoded data to the reception apparatus. The present invention can enable a formed and used codebook to match channel distribution characteristic of a dual-polarized antenna as much as possible, and minimize performance loss brought by codebook quantization, thereby performance of a precoding system can be effectively improved.

Find Patent Forward Citations

Zhang, Ranran. (2014). Method and device for transmitting/receiving information in closed-loop multi-antenna system (U.S. Patent No. 8855229). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8855229

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

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