Patent ID: 9456359
Filing Date: 2016-09-27
CPC Classification: H04B,H04J,H04L,H04W

Claim Text:
1. A method for transmitting channel state information at a user equipment in a multi-cell cooperative wireless communication system, comprising: receiving a reference signal from a serving cell and one or more neighboring cells; generating first channel state information, second channel state information and third channel state information, which are different types of channel state information from each other; determining a feedback configuration mode based on channel state information priority; mapping each of the first channel state information, the second channel state information and the third channel state information into one of a plurality of subframes including a first subframe, a second subframe and a third subframe, respectively, based on a mapping relationship defined for the feedback configuration mode; and transmitting each of the mapped channel state information to the serving cell, using the plurality of subframes, wherein a first feedback configuration mode is defined such that the first channel state information is mapped to the first subframe, the second channel state information is mapped to the second subframe and the third channel state information is mapped to the third subframe, wherein a second feedback configuration mode is defined such that the first channel state information is mapped to the first subframe, the second channel state information is mapped to the third subframe and the third channel state information is mapped to the second subframe, determining whether the feedback configuration mode is set to the first feedback configuration or the second feedback configuration based on the codebook size of the second channel state information compared to the payload size of the third channel state information.