Patent ID: 9094860
Filing Date: 2015-07-28
Classification: H04B,H04L,H04W

Abstract:
1. A method for transmitting channel status information (CSI) by a user equipment (UE), the method comprising: generating the CSI including at least one of a rank indicator (RI), a precoding matrix index (PMI), or a channel quality indicator (CQI), wherein a first reporting type supports the RI, a second reporting type supports a wideband (WB) PMI, a third reporting type supports a WB CQI, and a fourth reporting type supports an SB CQI; and if the UE is configured with more than one serving cell, transmitting the CSI of only one serving cell in a subframe, wherein, for the subframe, in case of collision between CSI of the second reporting type of a serving cell with CSI of the third reporting type of another serving cell, the CSI of the third reporting type has lower priority and is dropped.