Method and apparatus for channel state information reporting
AssigneeSamsung Electronics Co., Ltd.
InventorsJingxing Fu, Yingyang Li, Yi Wang
Life of this patent
Estimating the term…
Abstract
The present disclosure provides a method for reporting channel state information (CSI), a first set of channel state information-reference signals (CSI-RSs) sent from a base station is measured to obtain a first set of CSI, and the first set of CSI obtained is reported to the base station. A second set of CSI-RSs sent from the base station is measured based on the first set of CSI to obtain a second set of CSI, and the second set of CSI obtained is reported to the base station, in which the second set of CSI-RSs is precoded CSI-RSs determined based on the first set of CSI.
Claims16
A method of a terminal for reporting channel state information (CSI) in a wireless system, the method comprising:
- receiving, from a base station, information configuring a first channel state information reference signal (CSI-RS) and a second CSI-RS, wherein the first CSI-RS is non-precoded CSI-RS and the second CSI-RS is precoded CSI-RS;
- receiving, from the base station, the first CSI-RS;
- generating a first CSI based on the first CSI-RS;
- receiving, from the base station, the second CSI-RS;
- generating a second CSI based on the second CSI-RS;
- and
- transmitting a CSI report including at least one of the first CSI and the second CSI to the base station,
- wherein, in case that an aperiodic CSI report is triggered, CSI included in the aperiodic CSI report among the first CSI generated based on the non-precoded CSI-RS and the second CSI generated based on the precoded CSI-RS, is identified based on a higher layer signaling.
A method of a base station for receiving channel state information (CSI) in a wireless system, the method comprising:
- transmitting, to a terminal, information configuring a first channel state information reference signal (CSI-RS) and a second CSI-RS, wherein the first CSI-RS is non-precoded CSI-RS and the second CSI-RS is precoded CSI-RS;
- transmitting, to the terminal, the first CSI-RS;
- transmitting, to the terminal, the second CSI-RS;
- and
- receiving, from the terminal, a CSI report including at least one of a first CSI and a second CSI, wherein the first CSI is generated based on the first CSI-RS and the second CSI is generated based on the second CSI-RS,
- wherein, in case that an aperiodic CSI report is triggered, CSI included in the aperiodic CSI report among the first CSI generated based on the non-precoded CSI-RS and the second CSI generated based on the precoded CSI-RS, is identified based on a higher layer signaling.
A terminal for reporting channel state information (CSI) in a wireless system, the terminal comprising:
- a transceiver;
- and
- at least one processor configured to:
- receive, from a base station, information configuring a first channel state information reference signal (CSI-RS) and a second CSI-RS, wherein the first CSI-RS is non-precoded CSI-RS and the second CSI-RS is precoded CSI-RS,
- receive, from the base station via the transceiver, the first CSI-RS,
- generate a first CSI based on the first CSI-RS,
- receive, from the base station via the transceiver, the second CSI-RS,
- generate a second CSI based on the second CSI-RS, and
- transmit, via the transceiver, a CSI report including at least one of the first CSI and the second CSI to the base station,
- wherein, in case that an aperiodic CSI report is triggered, CSI included in the aperiodic CSI report among the first CSI generated based on the non-precoded CSI-RS and the second CSI generated based on the precoded CSI-RS, is identified based on a higher layer signaling.
A base station for receiving channel state information (CSI) in a wireless system, the method comprising:
- a transceiver;
- and
- at least one processor configured to:
- transmit, to a terminal via the transceiver, information configuring a first channel state information reference signal (CSI-RS) and a second CSI-RS, wherein the first CSI-RS is non-precoded CSI-RS and the second CSI-RS is precoded CSI-RS;
- transmit, to the terminal via the transceiver, the first CSI-RS;
- transmit, to the terminal via the transceiver, the second CSI-RS;
- and
- receive, from the terminal via the transceiver, a CSI report including at least one of first CSI and second CSI, wherein the first CSI is generated based on the first CSI-RS and the second CSI is generated based on the second CSI-RS,
- wherein, in case that an aperiodic CSI report is triggered, CSI included in the aperiodic CSI report among the first CSI generated based on the non-precoded CSI-RS and the second CSI generated based on the precoded CSI-RS, is identified based on a higher layer signaling.
Dependencies are inferred from the claim text.