Patent · US Active

Communication devices and methods

US11824606B2 · kind B2 · utility

0Cited by

0References

20Claims

0Family size

Assignee

SONY GROUP CORPORATION · JP

Inventors

Dana Ciochina · Stuttgart, DE
Thomas HANDTE · Stuttgart, DE
Nabil Loghin · Stuttgart, DE
Felix Fellhauer · Stuttgart, DE

Key dates

Filing date	Apr 20, 2020
Grant date	Nov 21, 2023
Priority date	—
Expiry date	Apr 20, 2040

Classification

Technology area (CPC H)Electricity
CPC primaryH04B7/0634
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

A first communication device that simultaneously transmits to a group of two or more second communication devices using multi-user multiple input multiple output (MU-MIMO) communication performs beamforming training with a selected second communication device of said group of second communication devices by transmitting one or more training units, wherein an analog beamforming training matrix and/or a digital beamforming training matrix adapted for beamforming training with the selected second communication device are applied on the one or more training units, receiving from the selected second communication device feedback in response to the transmitted transmit packets, and determining, for use in the simultaneous transmission of data to a group of two or more second communication devices including the selected second communication device, an updated analog beamforming matrix and/or an updated digital beamforming matrix based at least on the received feedback.

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