METHOD, APPARATUS AND COMMUNICATION SYSTEM FOR FEEDING BACK CHANNEL INFORMATION OF UNLICENSED FREQUENCY BAND

Title:

METHOD, APPARATUS AND COMMUNICATION SYSTEM FOR FEEDING BACK CHANNEL INFORMATION OF UNLICENSED FREQUENCY BAND

Document Type and Number:

WIPO Patent Application WO/2016/119138

Kind Code:

A1

Abstract:

Provided in the present application are a method, an apparatus and a communication system for feeding back channel information of unlicensed frequency band, and the method includes: user equipment determines a sub-frame for channel information feedback according to configuration of a base station; the user equipment determines, according to the sub-frame for channel information feedback, a sub-frame for measuring channel quality; the user equipment detects whether a pre-defined reference signal exists in the sub-frame for measuring channel quality or not; if yes, the user equipment reports, in the sub-frame for channel information feedback, the channel quality measurement result of the sub-frame for measuring channel quality. With the embodiments of the present invention, the CQI measurement and report error is avoided when LTE technology is used on the unlicensed frequency band.

Inventors:

ZHOU HUA (CN)
ZHANG YI (CN)
XU HAIBO (CN)

Application Number:

PCT/CN2015/071700

Publication Date:

August 04, 2016

Filing Date:

January 28, 2015

Export Citation:

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Assignee:

FUJITSU LTD (JP)
ZHOU HUA (CN)
ZHANG YI (CN)
XU HAIBO (CN)

International Classes:

H04W72/04

Domestic Patent References:

WO2014119413A1

2014-08-07

Foreign References:

CN102232307A	2011-11-02
CN103001678A	2013-03-27
US20080010208A1	2008-01-10

Other References: