Method and apparatus for coherent receive beamforming

US10707946B2 · kind B2 · utility

Assignee

• Intel IP Corporation · US

Inventors

• Michael Ruder · Pommelsbrunn, DE
• Yeong-Sun Hwang · Germering, DE
• Zhibin Yu · Unterhaching, DE
• Holger Neuhaus · Birkenfeld, DE
• Tom Harel · Raanana, IL
• Rajarajan Balraj · Goldkronach, DE
• Matthias Malkowski · Starnberg, DE

Key dates

• Filing date: May 3, 2019
• Grant date: Jul 7, 2020
• Expiry date: May 3, 2039

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04B17/318
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

A method and apparatus for receive beam-forming in an analog domain. A user equipment may perform channel estimation for obtaining a set of channel responses for a plurality of antennas of the UE. The UE may determine a beamforming codeword for receive beamforming based on the set of channel responses. The UE may apply a training codeword to the received signal in analog domain. The training codeword includes phase adjustment coefficients for each antenna and a different training codeword may be applied for each channel observation. The UE may measure a metric for at least one candidate codeword based on the set of channel responses and determine the beamforming codeword based on the metric.