公开(公告)号：US09820290B2

公开(公告)日：2017-11-14

申请号：US14636863

申请日：2015-03-03

Applicant: Samsung Electronics Co., Ltd.

Inventor： Keonkook Lee ,  Chanhong Kim ,  Taeyoung Kim ,  Jjiyun Seol ,  Jaeseung Son

IPC: H04W72/08 ,  H04B7/04 ,  H04L1/00 ,  H04L5/00 ,  H04W24/10 ,  H04B7/0417 ,  H04B7/06

CPC classification number: H04W72/085 ,  H04B7/0417 ,  H04B7/0473 ,  H04B7/0647 ,  H04L1/0003 ,  H04L5/0048 ,  H04W24/10

Abstract: A Virtual Antenna Mapping (VAM) method of a base station and a transmission apparatus equipped with M physical antennas and Q Transceiver Units (TXRUs) are provided. The method includes transmitting Reference Signals (RSs) arranged differently according to respective VAM patterns to a terminal in a transmission mode supporting N logical antennas; receiving a feedback including information regarding a VAM pattern selected as a result of channel measurement with respect to the RSs transmitted according to the VAM pattern from the terminal; and transmitting a signal to the terminal through the M physical antennas by applying the selected VAM pattern, wherein the selected VAM pattern maps N data streams corresponding to the N logical antennas to the M physical antennas through the Q TXRUs.