Patent ID: 8750153
Filing Date: 2014-06-10
Classification: H04B

Abstract:
1. A method for transmitting feedback information by a user equipment (UE) in a wireless communication system in which at least one eNode B (eNB) performs a coordinated multi-point (CoMP) operation, the method comprising: receiving a reference signal from the at least one eNB; determining precoding matrix index (PMI) set information corresponding to the at least one eNB when the at least one eNB is operated in a coordinated beamforming (CB) scheme based upon the reference signal; determining phase set information for phase correction of beams formed by the at least one eNB when the at least one eNB is operated in a joint processing (JP) scheme basis upon the PMI set information of the CB scheme; and transmitting feedback information including the PMI set information of the CB scheme and the phase set information to a serving eNB from among the at least one eNB, wherein the feedback information is used in a case in which the at least one eNB is operated by the CB scheme and in another case in which the at least one eNB is operated by the JP scheme.