Patent ID: 8953475
Filing Date: 2015-02-10
Classification: H04B,H04J,H04L,H04W

Abstract:
1. A method in a first base station for obtaining channel state information from a user equipment, which first base station is included in a wireless communication system and which wireless communication system further includes the user equipment, wherein the method comprises: estimating a first offset value for a first set of subframes based on a first channel information, where the subframes of the first set of subframes are of a first type; estimating a second offset value for a second set of subframes based on a second channel information, where the subframes of the second set of subframes are of a second type; transmitting the estimated first offset value and the estimated second offset value to the user equipment; and obtaining channel state information from the user equipment, where said channel state information is based on the estimated first offset value and the estimated second offset value and is to be used for transmission in the first base station.