Patent ID: 9461721
Filing Date: 2016-10-04
CPC Classification: H04B,H04J

Claim Text:
1. A method for transmitting channel state information (CSI) for a coordinated multi-point transmission and reception (CoMP) set by a user equipment (UE) communicating with the CoMP set in a wireless communication system, the method comprising: determining the number of bits for inter-point phase information based on rank indicator (RI) information within the number of bits allocated for transmission of the CSI; and transmitting the CSI including the inter-point phase information to at least one of points belonging to the CoMP set, wherein when an RI for the CoMP set is greater than an RI for each of the points of the CoMP set, or when the RI for the CoMP set is 2 or more, the number of bits for the inter-point phase information is set to N, and wherein N is smaller than the number of bits for the inter-point phase information in a case that the RI for the CoMP set is 1.