Method and apparatus for transmitting and receiving feedback information in a mobile communication system
AssigneeSamsung Electronics Co., Ltd.
InventorsHyo-Jin Lee, Youn-Sun Kim, Ki-Il Kim
Life of this patent
Estimating the term…
Abstract
A method and apparatus for transmitting feedback information by a User Equipment (UE) in a mobile communication system are provided. The method includes receiving information about at least one Channel State Information Reference Signal (CSI-RS); performing channel estimation based on the information about at least one CSI-RS; receiving information about at least one feedback; and transmitting at least one feedback including a channel estimation result using the information about at least one feedback, wherein the information about at least one feedback includes information about a transmission timing and a feedback mode for at least one feedback.
Claims20
A method for transmitting feedback information by a user equipment (UE) in a mobile communication system, the method comprising:
- receiving information about at least one channel state information reference signal (CSI-RS), information about at least one interference measurement resource (IMR), information about at least one CSI feedback representative of combination of a transmission period and an offset, and at least one CSI feedback index being mapped to the information about at least one IMR and the information about at least one CSI-RS;
- deriving the at least one CSI feedback from channel measurement based on the information about at least one CSI-RS and interference measurement based on the information about at least one IMR;
- and
- transmitting the at least one CSI feedback using the information about at least one CSI feedback representative of the combination of the transmission period and the offset.
A method for receiving feedback information by a central control device in a mobile communication system, the method comprising:
- transmitting, to a user equipment (UE), information about at least one channel state information reference signal (CSI-RS), information about at least one interference measurement resource (IMR), information about at least one CSI feedback representative of combination of a transmission period and an offset, and at least one CSI feedback index being mapped to the information about at least one IMR and the information about at least one CSI-RS;
- and
- receiving the at least one CSI feedback from the UE,
- wherein the at least one CSI feedback is derived from channel measurement based on the information about at least one CSI-RS and interference measurement based on the information about at least one IMR, and
- wherein the at least one CSI feedback is transmitted by using the information about at least one CSI feedback representative of the combination of the transmission period and the offset.
A user equipment (UE) in a mobile communication system, the UE comprising:
- a receiver configured to receive information about at least one Channel State Information Reference Signal (CSI-RS) information about at least one interference measurement resource (IMR), information about at least one CSI feedback representative of combination of a transmission period and an offset, and at least one CSI feedback index being mapped to the information about at least one IMR and the information about at least one CSI-RS;
- and
- a controller configured to derive the at least one CSI feedback from channel measurement based on the information about at least one CSI-RS and interference measurement based on the information about at least one IMR;
- and
- a transmitter configured to transmit the at least one CSI feedback using the information about at least one CSI feedback representative of the combination of the transmission period and the offset.
A central control device in a mobile communication system, the central control device comprising:
- a transmitter configured to transmit, to a user equipment (UE), information about at least one channel state information reference signal (CSI-RS), information about at least one interference measurement resource (IMR), information about at least one CSI feedback representative of combination of a transmission period and an offset, and at least one CSI feedback index being mapped to the information about at least one IMR and the information about at least one CSI-RS;
- and
- a receiver configured to receive at least one CSI feedback from the UE,
- wherein the at least one CSI feedback is derived from channel measurement based on the information about at least one CSI-RS and interference measurement based on the information about at least one IMR, and
- wherein the at least one CSI feedback is transmitted by using the information about at least one CSI feedback representative of the combination of the transmission period and the offset.
Dependencies are inferred from the claim text.