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:
May. 21, 2013
Filed:
Mar. 04, 2011
Method and device for correcting iq imbalance of baseband signals in wireless communication receiver
Yunbao Zeng, Beijing, CN;
Yunbao Zeng, Beijing, CN;
Huawei Technologies Co., Ltd., Shenzhen, CN;
Abstract
A method and a device for correcting In-phase/Quadrature (IQ) imbalance in baseband signals of a wireless communication receiver are disclosed. The method includes the following: the receiver receives Radio Frequency (RF) signals, and processes the signals to generate In-phase (I) signals and Quadrature (Q) signals; the receiver calculates to obtain an autocorrelation value E(|I|) of the I signal, an autocorrelation value E(|Q|) of a current Q signal, and a cross-correlation value E(IQ) of the I signal and the current Q signal; the receiver computes E(|I|), (|Q|) and E(IQ) through arithmetical operations to obtain an estimate value Âof a current amplitude imbalance calibration factor and an estimate value {circumflex over (P)}of a current phase imbalance calibration factor; and the receiver corrects the current Q signal according to Âand {circumflex over (P)}. The embodiments reduce operations.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile