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:
Jun. 26, 2012
Filed:
Feb. 28, 2007
Applicants:
Marian Codreanu, Oulu, FI;
Antti Tölli, Oulu, FI;
Markku Juntti, Oulu, FI;
Matti Latva-aho, Oulu, FI;
Inventors:
Marian Codreanu, Oulu, FI;
Antti Tölli, Oulu, FI;
Markku Juntti, Oulu, FI;
Matti Latva-Aho, Oulu, FI;
Assignee:
Nokia Corporation, Espoo, FI;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B 1/00 (2006.01); G01S 13/00 (2006.01); H01Q 21/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
There is provided a method comprising: determining a phase difference between at least two antenna units of a distributed antenna system on the basis of at least one pilot signal received from at least one of a plurality of antenna units; and transmitting phase correction commands to a common base station of the plurality of antenna units on the basis of the determined phase difference in order to synchronize carrier phases between at least two antenna units of the distributed antenna system.