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:
Aug. 30, 2011
Filed:
May. 08, 2008
Zhifeng Tao, Allston, MA (US);
Andreas F. Molisch, Arlington, MA (US);
Philip V. Orlik, Cambridge, MA (US);
Jinyun Zhang, Cambridge, MA (US);
Shigeru Uchida, Kanagawa, JP;
Kentarou Sawa, Fujisawa, JP;
Zhifeng Tao, Allston, MA (US);
Andreas F. Molisch, Arlington, MA (US);
Philip V. Orlik, Cambridge, MA (US);
Jinyun Zhang, Cambridge, MA (US);
Shigeru Uchida, Kanagawa, JP;
Kentarou Sawa, Fujisawa, JP;
Mitsubishi Electric Research Laboratories, Inc., Cambridge, MA (US);
Abstract
A method selects antennas in an OFDMA wireless network including a base station and a mobile station. The mobile station measures a channel state of a downlink in a downlink subframe using different subsets of available antennas, and selects a subset of receive antennas for downlink reception based on the channel states between the base station and the different subsets of antennas at the mobile station. The base station measures the channel state in an uplink using an uplink subframe received in the base station from the mobile station, and selects a subset of transmit antennas for mobile station's uplink transmission based on the channel states between the base station and different subset of antennas at the mobile station.