Patent ID: 9531574
Filing Date: 2016-12-27
CPC Classification: H04B,H04J,H04L,H04W

Claim Text:
1. A method of generating reference signals by a User Equipment (UE), the method comprising: receiving a Cyclic Shift (CS) parameter from a network; generating the reference signals for N layers based on the CS parameter and an Orthogonal Cover Code (OCC), N being an integer; and transmitting the generated reference signals to the network, wherein the CS parameter is associated with a first set or a second set, an intersection of the first set and the second set is an empty set, and an OCC of a first layer is equal to an OCC of a second layer while OCCs of a third layer and a fourth layer are different from the OCC of the first layer if the CS parameter is an element of the first set, and one OCC is identically allocated to all of the N layers if the CS parameter is an element of the second set.