Patent ID: 9118532
Filing Date: 2015-08-25
Classification: H04B,H04L

Abstract:
1. A method in a base station for predicting a frequency dependent Channel State Information, CSI, value for scheduling and link adaptation of resource blocks of an operating bandwidth comprising a number of bandwidth parts, based on frequency band CSI information related to a user equipment node, UE, the method comprising the steps of: receiving a first CSI from the UE, wherein the first CSI is a wideband CSI related to the UE, receiving a second CSI from the UE, wherein the second CSI is a UE-selected subband CSI, obtaining a bandwidth part related CSI parameter, determining a third CSI, wherein the third CSI is an estimate of CSI for a non UE-selected subband based on the received first CSI and the obtained bandwidth part related CSI parameter, using the third CSI as a basis for link adaptation for the non UE-selected subband, determining a difference between the second CSI and the third CSI, determining a fourth CSI, wherein the fourth CSI is an updated estimate of CSI for the non UE-selected subband based on said determined difference between the second CSI and the third CSI, and using the fourth CSI, instead of the third CSI, as a basis for link adaptation for the non UE-selected subband.