DEVICE, NETWORK, AND METHOD FOR CSI FEEDBACK OF HYBRID BEAMFORMING

Title:

DEVICE, NETWORK, AND METHOD FOR CSI FEEDBACK OF HYBRID BEAMFORMING

Document Type and Number:

WIPO Patent Application WO/2016/177299

Kind Code:

A1

Abstract:

Various methods and systems are provided to provide for Channel State Information (CSI) feedback of hybrid beamforming. In a first example embodiment, a method for signaling a beamforming reference signal (BFRS) is provided. A resource block is created for the BFRS, the resource block containing a plurality of resource elements, each resource element defined by a time-frequency resource within one subcarrier and one multiplexing symbol. A total number of analog transmit beams for the BFRS is then determined, along with grouping information for the analog transmit beams for the BFRS. Then, the resource block, the total number of analog beams, and the grouping information are transmitted from a first network controller to a user equipment (UE). Then the BFRS is transmitted from the first network controller to the UE.

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Inventors:

CHENG QIAN (US)
XIAO WEIMIN (US)
LIU JIALING (US)

Application Number:

PCT/CN2016/080718

Publication Date:

November 10, 2016

Filing Date:

April 29, 2016

Export Citation:

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Assignee:

HUAWEI TECH CO LTD (CN)

International Classes:

H04W24/10

Domestic Patent References:

WO2014161183A1

2014-10-09

Foreign References:

US20130301454A1	2013-11-14
CN103812619A	2014-05-21

Other References: