Patent ID: 9100946
Filing Date: 2015-08-04
Classification: H04B,H04L,H04W

Abstract:
1. A user equipment (UE) used in a multi-user (MU)-multiple input multiple output (MIMO) orthogonal frequency division multiple access (OFDMA) system, the UE comprising: a receiving unit to receive from a base station an indication of an estimate of or an upper-bound on the total number of MU-MIMO user equipments (|S|) that will be scheduled together on a sub-band by the base station and whose resource block (RB) assignment has a non-zero overlap or intersection in at-least one RB in the sub-band, wherein the sub-band includes one or more resource units; a calculation unit to calculate channel quality based on the indication of the estimate of or the upper-bound on the total number of MU-MIMO user equipments after receiving the indication of the estimate of or the upper-bound on the total number of MU-MIMO user equipments; and a transmission unit to transmit to the base station an indication of the channel quality, wherein the estimate of or the upper-bound on the total number of MU-MIMO user equipments is capable of conveying a different value from the number of transmit antennas at the base station.