Patent ID: 8699618
Filing Date: 2014-04-15
Classification: H04J,H04L

Abstract:
1. A communication user equipment (UE) that obtains precoder information from a reference signal (RS) transmitted from a base station (BS), the UE performing: receiving of a UE-specific DM-RS sequence, which is transmitted after being generated by additionally allocating a UE-specific orthogonal code sequence to a resource element (RE) to which a basic DM-RS sequence for each layer is allocated; generating of the basic DM-RS sequence for each layer by correlating the received UE-specific DM-RS sequence and a layer-specific Walsh code sequence; and obtaining of a first allocation layer allocated to the UE and precoder information used in the first allocation layer, by correlating the generated basic DM-RS sequence for each layer and a UE-specific orthogonal code sequence allocated to the UE.