Patent ID: 8964520
Filing Date: 2015-02-24
Classification: H04B,H04J,H04L,H04W

Abstract:
1. A method of generating reference signals for N layers by a User Equipment (UE), the method comprising: receiving a Cyclic Shift (CS) parameter from an evolved NodeB (eNodeB), the CS parameter comprising a 3-bit value; generating the reference signals for the N layers based on the 3-bit value; and transmitting the generated reference signals to the eNodeB, wherein N is equal to 4, and wherein the generating of the reference signals for the N layers comprises: applying [+1, +1] as an Orthogonal Cover Code (OCC) of each of the N layers in response to a determination that the CS parameter is one of 011 indicating 4 as a CS parameter value of a first layer of the N layers and 100 indicating 2 as the CS parameter value of the first layer; and applying [+1 , −1] as the OCC of each of the N layers in response to a determination that the CS parameter is one of 101 indicating 8 as the CS parameter value of the first layer and 110 indicating 10 as the CS parameter value of the first layer.