Feedback method and apparatus for cooperative communication system

摘要

Methods and apparatuses are provided for transmitting channel information, by a UE. Information for at least one first type CSI-RS and information for at least one second type CSI-RS are identified. First channel information is generated based on a first type CSI-RS and a second type CSI-RS, among the at least one first type CSI-RS and the at least one second type CSI-RS. The first channel information is reported by PUCCH-based periodic channel information feedback. If a PDCCH including an indicator is received, second channel information is generated based on the first type CSI-RS and the second type CSI-RS. The second channel information is reported through a PUSCH. The indicator triggers a channel information report associated with the first type CSI-RS and the second type CSI-RS, among the at least one first type CSI-RS and the at least one second type CSI-RS.

主权项

1. A method for transmitting channel information, by a User Equipment (UE), comprising:
identifying information for at least one first type Channel Status Information Reference Signal (CSI-RS) and information for at least one second type CSI-RS from an eNB; generating first channel information based on a first type CSI-RS and a second type CSI-RS, among the at least one first type CSI-RS and the at least one second type CSI-RS; reporting the first channel information by Physical Uplink Control Channel (PUCCH)-based periodic channel information feedback; if a Physical Downlink Control Channel (PDCCH) including an indicator is received, generating second channel information based on the first type CSI-RS and the second type CSI-RS; and reporting the second channel information through a Physical Uplink Shared Channel (PUSCH), wherein the indicator triggers a channel information report associated with the first type CSI-RS and the second type CSI-RS, among the at least one first type CSI-RS and the at least one second type CSI-RS.