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. 21, 2016
Filed:
May. 24, 2012
Youping Su, Beijing, CN;
Alireza Nejatian, Uppsala, SE;
Fredrik Huss, Sundbyberg, SE;
Telefonaktiebolaget LM Ericsson (publ), Stockholm, SE;
Abstract
A method in a base station is provided for reducing distortion of an uplink signal received in a receiver part () of the base station, said distortion being caused by intermodulation, IM, products. The method comprises: generating (), from a transmitter source signal, a modeled signal of IM components, as norder IM components of the transmitter source signal, n being an integer value of 2, 3, 4 and/or 5 etc., and detecting () IM products of the received uplink signal, the received uplink signal comprising UL traffic components and the IM products, by correlating the received uplink signal with the IM components of the modeled signal. The method further comprises producing () a cancellation signal based on the detected IM products of the received uplink signal, and subtracting () the cancellation signal from the received uplink signal. Also, a similar apparatus in a base station is provided.