METHOD AND USER EQUIPMENT FOR TRANSMITTING CHANNEL STATE INFORMATION AND METHOD AND BASE STATION FOR RECEIVING CHANNEL STATE INFORMATION

摘要

The present invention provides a method and a device for transmitting or receiving channel state information (CSI). According to the present invention, when a user equipment can be set with one or more CSI processes per serving cell, a CSI request field included in downlink control information for a specific serving cell indicates at least whether a non-periodic CSI report triggered by the CSI request field is triggered for a set of CSI process(es) set by a higher layer from among the CSI process(es) for the one serving cell.

主权项

1. A method for transmitting, by a user equipment, channel state information (CSI), the method comprising:
receiving downlink control information for a specific serving carrier, the downlink control information including a CSI request field; and performing an aperiodic CSI report on a physical uplink shared channel (PUSCH) of the specific serving carrier, wherein the aperiodic CSI report is triggered by the CSI request field, and wherein the CSI request field indicates one of ‘no aperiodic CSI report is triggered’, ‘the aperiodic CSI report is triggered for a first set of CSI process(es) configured by a higher layer among CSI process(es) for the specific serving carrier’, ‘the aperiodic CSI report is triggered for a second set of CSI process(es) configured by the higher layer’, and ‘the aperiodic CSI report is triggered for a third set of CSI process(es) configured by the higher layer’, when the user equipment is configured in a mode in which one or more CSI processes can be configured for at least one serving carrier.