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1. US20190356370 - Efficient implementation of hybrid beamforming

Office United States of America
Application Number 16477004
Application Date 18.01.2018
Publication Number 20190356370
Publication Date 21.11.2019
Grant Number 10790889
Grant Date 29.09.2020
Publication Kind B2
IPC
H04B 7/06
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
02Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas
04using two or more spaced independent antennas
06at the transmitting station
CPC
H04B 7/0617
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
04using two or more spaced independent antennas
06at the transmitting station
0613using simultaneous transmission
0615of weighted versions of same signal
0617for beam forming
Applicants IDAC Holdings, Inc.
Inventors Alireza Morsali
Benoit J. F. Champagne
Afshin Haghighat
Agents Invention Mine LLC
Title
(EN) Efficient implementation of hybrid beamforming
Abstract
(EN)

Hybrid beamforming may be configured for wireless communication systems (e.g., multiple-input multiple output (MIMO) and/or massive-MIMO). The implementation(s) may determine a number of radio frequency (RF) chains for realizing a fully digital precoder (FDP) in a structure (e.g., a hybrid analog/digital precoder). The number of RF chains may be less than a number of transmitter antennas. A transmit vector signal may be determined based on a digital precoder and an input symbol vector. An analog precoder and/or a baseband signal may be determined based on the determined transmit vector signal. The number of RF chains may be determined based on the determined baseband signal. The baseband signal may be fed to the determined number of RF chains. The analog precoder may determine a beamforming signal based on an output of the determined number of RF chains. The analog precoder may transmit the beamforming signal using the number of transmitter antennas.

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