Method and Apparatus for Feeding back Channel Information for Unlicensed Band and Communication System

Abstract

This application provides a method and apparatus for feeding back channel information for an unlicensed band and a communication system, wherein, a method includes: UE determines a subframe for feeding back channel information by UE according to configuration of an eNB; the UE detects whether there exists a predefined reference signal in the subframe for measuring channel quality; and when there exists the predefined reference signal in the subframe for measuring channel quality, the UE reports a channel quality measurement result of the subframe for measuring channel quality at the subframe for feeding back channel information. With the embodiments of this disclosure, errors of CQI measurement and report in using the LTE technology at an unlicensed band may be avoided.

Dependencies are inferred from the claim text.