Patent ID: 9479238
Filing Date: 2016-10-25
CPC Classification: H04B

Claim Text:
1. A method of beamforming of a communication node using a 3D antenna array, comprising: transmitting a first control channel; receiving first feedback information on a first antenna set which is included in the 3D antenna array of the communication node and a first precoding scheme for the first antenna set from a first communication node different from the communication node, wherein the first antenna set and the first precoding scheme are determined based on the first control channel by the first communication node; and beamforming a traffic channel to be transmitted to the first communication node using the first antenna set and the first precoding scheme, so that the first communication node receives the traffic channel through a second antenna set which is included in a 3D antenna array of the first communication node, wherein the second antenna set is determined based on the first control channel by the first communication node, wherein the 3D antenna array of the communication node includes a plurality of element antennas and a plurality of antenna sets, and each of the plurality of antenna sets includes some of the plurality of element antennas, and wherein the first antenna set shares some of the plurality of element antennas with adjacent antenna sets of the plurality of antenna sets.