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:
Jan. 20, 2015
Filed:
May. 18, 2011
Yuri C. B. Silva, Fortaleza, BR;
Pedro R. S. Lopes, Fortaleza, BR;
Francisco R. P. Cavalcanti, Fortaleza, BR;
Peter Larsson, Solna, SE;
Yuri C. B. Silva, Fortaleza, BR;
Pedro R. S. Lopes, Fortaleza, BR;
Francisco R. P. Cavalcanti, Fortaleza, BR;
Peter Larsson, Solna, SE;
Telefonaktiebolaget L M Ericsson (publ), Stockholm, SE;
Abstract
Improved amplify-and-forward relaying in a communication network is described, including an example network of multiple single-antenna mobile stations, a multi-antenna relay station, and a multi-antenna base station. Bi-directional communication with improved transmission efficiency is enabled by suitable transmit/receive processing at the relay station without drawbacks of current relaying techniques. Linear transmit and receive processing matrices are disclosed, and it is shown that the numbers of antennas at the relay station and the base station can be substantially the same without reducing network capacity, closely matching the performance for low and high signal to noise ratios of current techniques that require the relay station to have twice as many antennas as the base station.