Method for reporting channel state information, method for supporting same, and apparatus for said methods
First Claim
1. A method for receiving, by a mobile terminal, a channel state information (CSI)-reference signal (RS) in a wireless communication system, the method comprising:
- receiving CSI-RS resource configuration information through higher layer signaling and receiving the CSI-RS according to the CSI-RS resource configuration information;
deriving CSI based on the CSI-RS; and
reporting the derived CSI to a base station,wherein the CSI-RS resource configuration information includes information on one or more cell specific-RS (CRS) antenna ports assumed to be quasi-co-located with one or more antenna ports used to transmit the CSI-RS.
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Abstract
According to one embodiment of the present invention, the method for receiving a channel state information (CSI)-reference signal (RS) from a wireless communication system by a user device comprises the steps of: receiving resource configuration information on the CSI-RS; and receiving the CSI-RS on the basis of the resource configuration information on the CIS-RS, wherein the resource configuration information on the CSI-RS includes information on a cell specific-RS (CRS) related to the CSI-RS, and the user device can assume that an antenna port related to information on the CRS and an antenna port used for transmitting CSI-RS corresponding to the resource configuration information on the CSI-RS are quasi co-located.
20 Citations
18 Claims
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1. A method for receiving, by a mobile terminal, a channel state information (CSI)-reference signal (RS) in a wireless communication system, the method comprising:
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receiving CSI-RS resource configuration information through higher layer signaling and receiving the CSI-RS according to the CSI-RS resource configuration information; deriving CSI based on the CSI-RS; and reporting the derived CSI to a base station, wherein the CSI-RS resource configuration information includes information on one or more cell specific-RS (CRS) antenna ports assumed to be quasi-co-located with one or more antenna ports used to transmit the CSI-RS. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for transmitting, by a base station, a channel state information (CSI)-reference signal (RS) in a wireless communication system, the method comprising:
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transmitting CSI-RS resource configuration information through higher layer signaling to a mobile terminal and transmitting the CSI-RS according to the CSI-RS resource configuration information; and receiving, from the mobile terminal, CSI derived based on the CSI-RS, wherein the CSI-RS resource configuration information includes information on one or more cell specific-RS (CRS) antenna ports used to transmit the CSI-RS.
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10. A mobile terminal configured to receive a channel state information (CSI)-reference signal (RS) in a wireless communication system, the mobile terminal comprising:
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a radio frequency (RF) unit; and a processor configured to control the RF unit, wherein the processor is further configured to; receive CSI-RS resource configuration information through higher layer signaling and receive the CSI-RS according to the CSI-RS resource configuration information, derive CSI based on the CSI-RS, and report the derived CSI to a base station, and wherein the CSI-RS resource configuration information includes information on one or more cell specific-RS (CRS) antenna ports assumed to be quasi-co-located with one or more antenna ports used to transmit the CSI-RS. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A base station configured to transmit a channel state information (CSI)-reference signal (RS) in a wireless communication system, the base station comprising:
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a radio frequency (RF) unit; and a processor configured to control the RE unit, wherein the processor is further configured to; transmit CSI-RS resource configuration information through higher layer signaling to a mobile terminal and transmit the CSI-RS according to the CSI-RS resource configuration information, and receive, from the mobile terminal, CSI derived based on the CSI-RS, and wherein the CSI-RS resource configuration information includes information on one or more cell specific-RS (CRS) antenna ports assumed to be quasi-co-located with one or more antenna ports used to transmit the CSI-RS.
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Specification