Mixed signal low noise interference cancellation

US12334972B2 · kind B2 · utility

Assignee

• Skyworks Solutions, Inc. · US

Inventors

• David Richard Pehlke · Westlake Village, US
• Anand Raghavan · Middleton, US
• Poul Olesen · Svenstrup, DK
• Werner Schelmbauer · Linz, AT
• Thorsten Tracht · Munich, DE
• Wolfgang Thomann · Munich, DE
• Amir Rubin · Kiryat Ono, IL
• Assi Jakoby · Herzliya, IL
• Ofer Benjamin · Netanya, IL

Key dates

• Filing date: Jun 26, 2024
• Grant date: Jun 17, 2025
• Expiry date: Jun 26, 2044

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04B7/0871
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

RF communication systems with interference cancellation for coexistence are provided herein. In certain embodiments, a method of interference cancellation includes filtering a radio frequency (RF) transmit signal to generate a first RF feedback signal using a first filter of a front end system, filtering the RF transmit signal to generate a second RF feedback signal using a second filter of the front end system, processing the first RF feedback signal to generate a first digital interference cancellation signal using a first feedback receiver, processing the second RF feedback signal to generate a second digital interference cancellation signal using a second feedback receiver, and compensating an RF receive signal for interference based on the first digital interference cancellation signal and the second digital interference cancellation signal using a receiver.