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:
Jul. 13, 2021
Filed:
Mar. 07, 2016
Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;
Martin Hessler, Linköping, SE;
Emil Björnson, Linköping, SE;
Marcus Karlsson, Linköping, SE;
Eric G. Larsson, Linköping, SE;
Telefonaktiebolaget LM Ericsson (publ), Stockholm, SE;
Abstract
A method for detecting a data transmission, the method including measuring a signal level for each of a predetermined plurality of distinct time-frequency transmission resources within a first time interval, non-coherently summing the measured signal levels, and comparing the sum to at least a first threshold to determine whether a channel-hardened signal targeted to the wireless receiver is present. A corresponding method for encoding a channel-hardened signal comprises transmitting, in a first time interval and using M antenna ports and T1 time-frequency resources, an array X of M×T1 symbols, where each row of the array corresponds to one of the M antenna ports and each column of the array X corresponds to one of the first set of T1 time-frequency resources. X satisfies the expression XX=aI, where Xis the conjugate transpose of X, I is an identity matrix, and α is a constant.