Patent ID: 9252856
Filing Date: 2016-02-02
CPC Classification: H04B,H04L

Claim Text:
1. A method for use in a multiple-input multiple-output, MIMO, transmission, comprising: receiving, at a base station, a rank reported by a user equipment; determining, by the base station, a transmission block size index (TBS determining, by the base station, a rank at least partly based on said determined TBS the base station overriding the reported rank with the determined rank, wherein determining the rank comprises: calculating the CQM for the current sub-frame is further based on an inter-layer interference factor when the MIMO transmission is scheduled with a rank of more than 1, and the method further comprises: accumulating CQM variation during the overriding of the rank; and adjusting said inter-layer interference factor, said first threshold and said second threshold based on the accumulated CQM variation.