US 9,872,190 B2 · Method for reporting channel quality information and device thereof

Abstract

Disclosed are a method for reporting channel quality information and a device thereof, the method comprising: according to configuration information of a CSI-RS, a user equipment measuring the CSI-RS to acquire a downlink channel transmission matrix; according to a PDSCH transmission scheme used as a basis when determining a Channel Quality Indicator (CQI), and according to the measured downlink channel transmission matrix, the user equipment determining the CQI of a frequency domain reporting unit; and the user equipment reporting the determined CQI to a network side. Through the present invention, the measurement and reporting of the channel quality information based on the CSI-RS is implemented based on transmission of non-PMI feedback.

Claims8

Dependent claims

A method for reporting channel quality information, the method comprising:

acquiring, by a User Equipment (UE), configuration information of a Channel-State Information-Reference Signal (CSI-RS);
acquiring, by the UE, a downlink channel transmission matrix by measuring the CSI-RS according to the configuration information of the CSI-RS;
assuming, by the UE, a transmission scheme of a Physical Downlink Shared Channel (PDSCH) according to a transmission mode of the PDSCH;
when the transmission scheme is a first type of transmission scheme, calculating and reporting, by the UE, a Channel Quality Indicator (CQI) and a recommended Precoding Matrix Indicator (PMI);
and
when the transmission scheme is a second type of transmission scheme, calculating and reporting, by the UE, the CQI using a non-codebook precoding mode and non-PMI feedback transmission, respectively.

3 more elements

Dependencies are inferred from the claim text.

Method for reporting channel quality information and device thereof

Life of this patent

Method for reporting channel quality information and device thereof

Life of this patent

Abstract

Claims8