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:
Sep. 16, 2014
Filed:
May. 07, 2014
Applicant:
Nokia Corporation, Espoo, FI;
Inventors:
Risto Väisänen, Salo, FI;
Kim Kaltiokallio, Salo, FI;
Assignee:
Nokia Corporation, Espoo, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/04 (2006.01); H04B 1/00 (2006.01); H04W 88/06 (2009.01);
U.S. Cl.
CPC ...
H04B 1/0078 (2013.01); H04W 88/06 (2013.01);
Abstract
A method and arrangement for transmitting and receiving RF signals, associated with different radio interfaces of communication systems, employ a direct conversion based transceiver which substantially comprises one receive signal branch and one transmit signal branch. Mixing frequencies of the different systems are generated by a single common by use of an output frequency divider in combination with the synthesizer, and by use of filtering corresponding to a system channel bandwidth by means of a controllable low—pass filter operating at baseband frequency.