Patent · US Active

Ultra-wideband crest factor reduction

US11438205B2 · kind B2 · utility

0Cited by

1References

16Claims

0Family size

Assignee

Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

Rui Hou · Järfälla, SE
Leonard Rexberg · Lindenstraße, SE
Bo Göransson · Sollentuna, SE
Richard Hellberg · Huddinge, SE
Mats Klingberg · Stockholm, SE
Stefan Engström · Linköping, SE

Key dates

Filing date	May 24, 2019
Grant date	Sep 6, 2022
Priority date	—
Expiry date	May 24, 2039

Classification

Technology area (CPC H)Electricity
CPC primaryH04L25/03853
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

Systems and methods for ultra-wideband Crest Factor Reduction (CFR) are provided. In some embodiments, a method performed by a wireless node for performing CFR includes performing a first CFR step on a plurality of input signals at a first sampling rate with joint peak detection and band-specific noise shaping; and performing a second CFR step on the resulting plurality of input signals at a second sampling rate with joint peak detection and joint noise shaping where the second sampling rate is higher than the first sampling rate. In this way, Peak-to-Average Power Ratio (PAPR) reduction may be increased while the computational complexity is reduced.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.