Crest factor reduction

US11750433B2 · kind B2 · utility

Assignee

• Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

• Ashim Biswas · Bengaluru, IN
• Stefan Engström · Linköping, SE
• S M Shahrear TANZIL · Honey Gables, CA
• Rui Hou · Järfälla, SE

Key dates

• Filing date: Aug 21, 2019
• Grant date: Sep 5, 2023
• Expiry date: Aug 21, 2039

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04L27/2618
• WIPO field: Digital communication
• WIPO sector: Electrical engineering

Abstract

A method for crest factor reduction (CFR). The method includes: generating a signal, xs(t); generating a vector, x(t), of size N×1 based on xs(t), wherein N>1; generating a clipping signal vector, z(t), based on x(t), wherein z(t) is a vector of size N×1; producing a transformed signal vector, y(t), based on z(t), wherein y(t) is a vector of size N×1; and generating an output signal vector, xp(t), based on y(t) and x(t), wherein generating xo(t) comprises subtracting y(t) from x(t) and xo(t) is a vector of size N×1.