Apparatus and method for beam management based on channel state indicator-reference signal
Provided is an apparatus and method for beam management based on a channel state indicator (CSI)-reference signal (RS). A method for a user equipment (UE) to receive a CSI-RS from a base station (BS) includes receiving configuration information of a CSI-RS resource set including one or more CSI-RS resources, and receiving a CSI-RS from a BS through CSI-RS resources included in the CSI-RS resource set. The configuration information of the CSI-RS resource set includes indication information indicating beam configurations for the respective CSI-RS resources included in the CSI-RS resource set.
1. A method for a user equipment (UE) to receive a channel state indicator (CSI)-reference signal (RS) from a base station (BS), the method comprising:
receiving configuration information of a CSI-RS resource set including one or more CSI-RS resources; and
receiving a CSI-RS from the BS through CSI-RS resources included in the CSI-RS resource set,
wherein the configuration information of the CSI-RS resource set includes indication information that indicates beam configurations for the respective CSI-RS resources included in the CSI-RS resource set,
wherein one of the CSI-RS resources in the CSI-RS resource set is composed of a symbol different from that of the others in the CSI-RS resource set, and
wherein each of the CSI-RS resources is composed of one symbol.
2. The method of claim 1 , wherein the respective CSI-RS resources are configured based on the configuration information, and all the CSI-RS resources are set for fixed transmission (Tx) beams.
3. The method of claim 1 , wherein the respective CSI-RS resources are configured based on the configuration information and set for different transmission (Tx) beams.
4. The method of claim 1 , wherein the configuration information is received from the BS through higher layer signaling.
5. A method for a base station (BS) to transmit a channel state indicator (CSI)-reference signal (RS) to a user equipment (UE), the method comprising:
configuring a CSI-RS resource set with one or more CSI-RS resources;
transmitting configuration information of the CSI-RS resource set to the UE; and
transmitting a CSI-RS to the UE by using CSI-RS resources included in the CSI-RS resource set,
wherein the configuration information of the CSI-RS resource set includes indication information indicating beam configurations for the respective CSI-RS resources included in the CSI-RS resource set,
wherein one of the CSI-RS resources of the CSI-RS resource set is composed of a symbol different from that of the others in the CSI-RS resource set, and
wherein each of the CSI-RS resources is composed of one symbol.
6. The method of claim 5 , wherein the respective CSI-RS resources are configured based on the configuration information, and all the CSI-RS resources are set for fixed transmission (Tx) beams.
7. The method of claim 5 , wherein the respective CSI-RS resources are configured based on the configuration information and set for different transmission (Tx) beams.
8. The method of claim 5 , wherein the configuration information is transmitted to the UE through higher layer signaling.
9. A user equipment (UE) for receiving a channel state indicator (CSI)-reference signal (RS) from a base station (BS), the UE comprising:
a receiver configured to receive configuration information of a CSI-RS resource set including one or more CSI-RS resources and receive a CSI-RS from the BS through CSI-RS resources included in the CSI-RS resource set,
wherein the configuration information of the CSI-RS resource set includes indication information indicating beam configurations for the respective CSI-RS resources included in the CSI-RS resource set,
wherein one of the CSI-RS resources in the CSI-RS resource set is composed of a symbol different from that of the others in the CSI-RS resource set, and
wherein each of the CSI-RS resources is composed of one symbol.
10. The UE of claim 9 , wherein the respective CSI-RS resources are configured based on the configuration information, and all the CSI-RS resources are set for fixed transmission (Tx) beams.
11. The UE of claim 9 , wherein the respective CSI-RS resources are configured based on the configuration information and set for different transmission (Tx) beams.
12. The UE of claim 9 , wherein the configuration information is received from the BS through higher layer signaling.