Title:
METHOD AND APPARATUS FOR TRANSMIT AND RECEIVE BEAM DETERMINATION
Document Type and Number:
WIPO Patent Application WO/2023/097564
Kind Code:
A1
Abstract:
Aspects of the present disclosure enable determination of a transmit beamformer used for data transmission. The determination of the transmit beam is based on beamformed reference signals (i. e. CSI-RS, SSB) transmitted by the transmitter, such as a base station, and received by the receiver, such as a UE. The receiver feeds back information based on an angle of arrival (AoA) of the beamformed reference signal to help the transmitter determine a transmit beamformer used by the transmitter to transmitter data to the receiver. In some embodiments, the feedback information may include a projection of an angle of arrival at the receiver of a propagation path have a strongest measures reference signal on a receive beamformer. In some embodiments, the feedback information may include a beamformer to be used at the transmitter, that has been determined at the receiver.
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Inventors:
FARMANBAR HAMIDREZA (CA)
BALIGH MOHAMMADHADI (CA)
BAYESTEH ALIREZA (CA)
BALIGH MOHAMMADHADI (CA)
BAYESTEH ALIREZA (CA)
Application Number:
PCT/CN2021/134817
Publication Date:
June 08, 2023
Filing Date:
December 01, 2021
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
G01S5/02
Foreign References:
| CN112513662A | 2021-03-16 | |||
| US20170029107A1 | 2017-02-02 | |||
| CN109844558A | 2019-06-04 | |||
| CN111512565A | 2020-08-07 |
Other References:
SAMSUNG: "Discussion on accuracy improvements for DL-AoD positioning solutions", 3GPP DRAFT; R1-2105312, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. e-Meeting; 20210510 - 20210527, 12 May 2021 (2021-05-12), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP052011358
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