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Title:
METHODS AND APPARATUS FOR CHANNEL ESTIMATION AND PRECODING WITH INCOMPLETE CHANNEL OBSERVATION AND CHANNEL STATE INFORMATION FEEDBACK
Document Type and Number:
WIPO Patent Application WO/2020/142794
Kind Code:
A3
Abstract:
A method implemented by a node includes estimating first downlink (DL) channel information of first DL channels in accordance with reference signals received on first uplink (UL) channels, the first UL channels being a subset of available UL channels, and the first DL channels corresponding to the first UL channels; receiving channel feedback for a set of DL channels; estimating second DL channel information in accordance with the estimated first DL channel information and the received channel feedback; and communicating in accordance with the second DL channel information.

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Inventors:
YUE GUOSEN (US)
QI XIAO-FENG (US)
Application Number:
PCT/US2020/032373
Publication Date:
April 22, 2021
Filing Date:
May 11, 2020
Export Citation:
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Assignee:
FUTUREWEI TECHNOLOGIES INC (US)
International Classes:
H04B7/06; H04L25/02; H04L25/03
Foreign References:
US20180091207A12018-03-29
US20100202548A12010-08-12
Other References:
HUAWEI ET AL: "Partial reciprocity based CSI acquisition mechanism", vol. RAN WG1, no. Nagoya, Japan; 20170918 - 20170921, 17 September 2017 (2017-09-17), XP051339184, Retrieved from the Internet [retrieved on 20170917]
ZHAO YAN ET AL: "Enhanced CSI Acquisition Scheme for NR TDD Systems with Partial Channel Reciprocity", 2019 IEEE 89TH VEHICULAR TECHNOLOGY CONFERENCE (VTC2019-SPRING), IEEE, 28 April 2019 (2019-04-28), pages 1 - 5, XP033568391, DOI: 10.1109/VTCSPRING.2019.8746703
Attorney, Agent or Firm:
WIEBUSCH, Landon E. (US)
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