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:
Dec. 12, 2017
Filed:
Feb. 12, 2014
Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;
Ming Li, Beijing, CN;
Youping Su, Täby, SE;
Telefonaktiebolaget LM Ericsson (publ), Stockholm, SE;
Abstract
In a method of a heterodyne FDD receiver for enabling reception of a multi-band RXRF signal spectrum, an RXRF signal spectrum is received, which comprises a lower frequency band and a higher frequency band. A Local Oscillator, LO, output frequency, f, is selected based on a frequency fof the lower frequency band, and a frequency fof the higher frequency band. Moreover, the RXRF signal spectrum is frequency shifted into an RXIF signal spectrum, by mixing the RXRF signal spectrum with the LO output frequency f. The LO frequency fis selected to satisfy f<f<f, where fand fare any frequency of the lower or higher frequency band, respectively.