Method and apparatus for feeding partial CQI back by terminal in wireless communication system
AssigneeLG Electronics Inc.
InventorsHyungtae Kim, Jonghyun Park
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Abstract
A method of reporting channel state information (CSI) to a base station by a terminal in a wireless communication system is disclosed. Specifically, the method includes configuring feedback chains corresponding to a plurality of CSI-reference signals (RSs) through upper layer signaling, receiving the plurality of CSI-RSs from the base station, calculating a complete channel quality indicator (CQI) for a whole channel using the plurality of CSI-RSs and dividing the complete CQI into partial CQIs corresponding to the respective feedback chains, and reporting CSI items including the partial CQIs to the base station through the feedback chains.
Claims11
A method of reporting channel state information (CSI) to a base station by a terminal in a wireless communication system, the method comprising:
- configuring feedback chains corresponding to a plurality of CSI-reference signals (RSs) through upper layer signaling;
- receiving the plurality of CSI-RSs from the base station;
- calculating a complete channel quality indicator (CQI) for a whole channel using the plurality of CSI-RSs and dividing the complete CQI into partial CQIs corresponding to the respective feedback chains;
- and
- reporting CSI items including the partial CQIs to the base station through the feedback chains.
A method of receiving channel state information (CSI) from a terminal by a base station in a wireless communication system, the method comprising:
- configuring feedback chains corresponding to a plurality of CSI-reference signals (RSs) through upper layer signaling;
- transmitting the plurality of CSI-RSs to the terminal;
- receiving partial channel quality indicators (CQIs) of a complete CQI for a whole channel calculated using the plurality of CSI-RSs from the terminal through the feedback chains;
- and
- acquiring the complete CQI for the whole channel using the partial CQIs.
Dependencies are inferred from the claim text.