US9204317B2

5G,4G

Title:

METHODS AND ARRANGEMENTS FOR CSI REPORTING

Application number:

US201213469843

Family ID:

48536981

Publication Date:

01-12-2015

Application date:

11-05-2012

Priority Date:

11-05-2012

Current assignee:

ERICSSON INC

Declaring company:

ERICSSON INC

Abstract  Abstract

Some embodiments provide a method in a wireless device for reporting channel state information CSI for a CSI process. The CSI process corresponds to a reference signal resource and an interference measurement resource. According to the method the wireless device obtains an adjustment value associated with the CSI process. The wireless device estimates an effective channel based on one or more reference signals received in the reference signal resource and applies the adjustment value to the estimated effective channel thereby obtaining an adjusted effective channel. Furthermore the wireless device determines channel state information based on the adjusted effective channel and on interference estimated based on the interference measurement resource. Finally the channel state information is transmitted to a network node.