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.:
Date of Patent:
Mar. 13, 2012
Filed:
Dec. 01, 2009
Xiaodong Xu, Beijing, CN;
Guangyi Liu, Beijing, CN;
Chunfeng Cui, Beijing, CN;
Zhigang Yan, Beijing, CN;
Yuhong Huang, Beijing, CN;
Xiaodong Xu, Beijing, CN;
Guangyi Liu, Beijing, CN;
Chunfeng Cui, Beijing, CN;
Zhigang Yan, Beijing, CN;
Yuhong Huang, Beijing, CN;
China Mobile Communications Corporation, Beijing, CN;
Abstract
A community antenna system in a closed loop mode and a method thereof are provided, the system includes two groups of pre-weighting processing modules, beamforming modules and antenna arrays connected in turn. The method includes the following processes: performing the pre-weighting processing on a transmission signal respectively according to the channel information corresponding to each of two antenna arrays; determining beamforming weight vectors according to two groups of steering vectors corresponding to the two antenna arrays, and performing weighting processing on the two pre-weighting processed transmission signals respectively to form two directional beams directed to the receiving antenna of a target mobile terminal; and transmitting the two directional beams via two antenna arrays with orthogonal polarization modes respectively.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile