Receiver with multi layer interference cancellation

US8908743B2 · kind B2 · utility

Assignee

• Intel Mobile Communications GmbH · DE

Inventors

• Biljana Badic · Munich, DE
• Tobias Scholand · Wiesloch, DE
• Rajarajan Balraj · Goldkronach, DE
• Peter Jung · Munich, DE
• Guido Bruck · Voerde, DE
• Zijian Bai · Duisburg, DE
• Stanislaus Iwelski · Cologne, DE

Key dates

• Filing date: Sep 26, 2012
• Grant date: Dec 9, 2014
• Expiry date: Jan 2, 2033

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04L2025/03426
• WIPO field: Digital communication
• WIPO sector: Electrical engineering

Abstract

A multi user receiver configured to receive a signal including multiple symbol streams assigned to various users is described. The multiple symbol streams include at least one first symbol stream assigned to a user of the multi user receiver and at least one second symbol stream assigned to another user, wherein a modulation alphabet applied for the at least one second symbol stream is unknown at the multi user receiver. The multi user receiver includes a symbol stream election unit configured to elect a symbol stream of the multiple symbol streams, an equalizer configured to provide an equalized symbol of the elected symbol stream, and a detector configured to generate a detected symbol from the equalized symbol on the basis of a constellation, wherein, if the second symbol stream is elected, the constellation is a mixed constellation including constellation points of at least two of multiple predefined modulation alphabets.