Patent · US Active

Doppler codebook-based precoding and CSI reporting for wireless communications systems

US12355517B2 · kind B2 · utility

0Cited by

1References

11Claims

0Family size

Assignee

Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V. · DE

Inventors

Venkatesh Ramireddy · Erlangen, DE
Markus Landmann · Erlangen, DE
Marcus GROßMANN · Friedrichroda, DE
Sutharshun Varatharaajan · Erlangen, DE

Key dates

Filing date	Apr 22, 2024
Grant date	Jul 8, 2025
Priority date	—
Expiry date	Apr 22, 2044

Classification

Technology area (CPC H)Electricity
CPC primaryH04B7/0639
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

A communication device providing CSI feedback in a wireless communication system includes a transceiver to receive downlink reference signals and downlink signals including a reference signal configuration. A processor estimates an explicit CSI in the frequency domain. The processor selects a Doppler-delay-beam precoder matrix for a composite Doppler-delay-beam three-stage precoder, which is based on one or more codebooks including

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