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:
Feb. 20, 2018
Filed:
Aug. 31, 2015
Freescale Semiconductor, Inc., Austin, TX (US);
Samuel Kerhuel, Villeneuve Tolosane, FR;
Vincent Pierre Martinez, Castres, FR;
NXP USA, Inc., Austin, TX (US);
Abstract
A receiving apparatus for SNR estimation of a signal such as the LTE PUCCH, transmitted over a channel of an OFDM wireless communication system. The proposed apparatus brings determines the noise power level in the frequency domain based on a noise covariance matrix where timing errors are back compensated in the equation since timing error is expressed a complex exponential therein. Contrary to the common methods used for determining the noise power level, in the present invention deriving the channel estimate components from the pilot symbol(s) comprised in the received signal is not required. Based on the present invention, user's transmit power is reduced thereby improving battery power longevity. Further, since interference is reduced, more users may be multiplexed together in the same resources. A method and a computer program product are also claimed.