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, by the user equipment, downlink control information for a serving cell c, the downlink control information including a CSI request field; and performing, by the user equipment, an aperiodic CSI report on a physical uplink shared channel (PUSCH) of the serving cell c, wherein the aperiodic CSI report is triggered by the CSI request field according to the following Table when the user equipment is configured in a mode in which one or more CSI processes can be configured for at least one serving cell:TABLEValue of CSIrequest fieldDescription‘00’No aperiodic CSI report is triggered‘01’Aperiodic CSI report is triggered for a firstset of CSI processes of serving cell c byhigher layers‘10’Aperiodic CSI report is triggered for asecond set of CSI processes for a second setof serving cells configured by higher layers‘11’Aperiodic CSI report is triggered for a thirdset of CSI processes for a third set of servingcells configured by higher layers