Title:
TWO-STAGE PRECODING METHOD AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/194007
Kind Code:
A1
Abstract:
The present application relates to the field of wireless communications, and particularly relates to a two-stage precoding technique and channel information feedback technique in a wireless communication system. The two-stage precoding method comprises: a first network apparatus sends a first reference signal to be used by a second network apparatus to estimate spatial correlation matrix information; and the first network apparatus receives the spatial correlation matrix information fed back by a user, and determines, according to the spatial correlation matrix information, a first stage precoding matrix. The solution provided by the present application enables performance improvement of a two-stage precoding system by means of applying the two-stage precoding method comprising a spatial correlation information feedback scheme.
Inventors:
WU LU (CN)
HUANG YI (CN)
HUANG YI (CN)
Application Number:
PCT/CN2017/084184
Publication Date:
November 16, 2017
Filing Date:
May 12, 2017
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04B7/04; H04B7/06
Domestic Patent References:
| WO2009128630A1 | 2009-10-22 |
Foreign References:
| CN101442351A | 2009-05-27 | |||
| CN102299775A | 2011-12-28 | |||
| US20110194631A1 | 2011-08-11 | |||
| CN102725990A | 2012-10-10 | |||
| CN105450343A | 2016-03-30 |
Other References:
See also references of EP 3444960A4
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