Method and apparatus for beam management and training

1. A user equipment (UE) comprising:

a transceiver configured to:

receive configuration information related to a code point included in a downlink (DL)-related DL control information (DCI); and

receive, based on the configuration information, the DL-related DCI; and

a processor operably coupled to the transceiver, the processor configured to:

identify a value of the code point; and

determine, based on the value of the code point, whether to generate a beam report;

wherein when the value of the code point is a first value, the code point corresponds to a trigger for a beam report, and

wherein when the value of the code point is a second value, the code point corresponds to indicating at least one TCI state for DL reception or uplink (UL) transmission.

2. The UE of claim 1 , wherein when the value of the code point is the first value:

the processor is configured, based on the code point, to determine a set of K 1 measurement reference signal (RS) resources comprising one of or both of channel state information reference signals (CSI-RSs) or synchronization signal blocks (SSBs);

the transceiver is configured to receive the set of K 1 measurement RS resources;

the processor is further configured, based on a measurement of the set of K 1 measurement RS resources, to determine the beam report; and

the transceiver is further configured to transmit the beam report, wherein the beam report includes at least one resource indicator and a beam metric associated with the at least one resource indicator.

3. The UE of claim 2 , wherein:

the DL DCI includes M TCI states, where M≥1, and

each of the M TCI states maps to a set of measurement RS resources, and a union of the sets of measurement RS resources mapped to each of the M TCI states corresponds to the set of K 1 measurement RS resources.

4. The UE of claim 2 , wherein the transceiver receives a configuration about the set of K 1 measurement RS resources.

5. The UE of claim 1 , wherein information indicating whether the value of the code point is the first value or the second value is via a separate signaling included in the DL-related DCI.

6. The UE of claim 1 , wherein when the value of the code point is the second value:

the processor is configured to determine a beam based on the at least one TCI state indicated via the code point; and

the transceiver is configured to use the beam to receive the DL reception or to transmit the UL transmission,

wherein the beam refers to spatial quasi co-location (QCL) information used to transmit or receive at least one source reference signal (RS) included in the at least one TCI state.

7. A base station (BS) comprising:

a processor configured to:

generate configuration information including information related to a code point included in a downlink (DL)-related DL control information (DCI), wherein when a value of the code point is a first value, the code point corresponds to a trigger for a

a beam report, and

wherein when the value of the code point is a second value, the code point corresponds to indicating at least one TCI state for downlink (DL) transmission or uplink (UL) reception; and

a transceiver operably coupled to the processor, the transceiver configured to:

transmit the configuration information; and

transmit the DL-related DCI.

8. The BS of claim 7 , wherein when the value of the code point is the first value:

the transceiver is configured to:

transmit a set of K 1 measurement reference signal (RS) resources comprising one of or both of channel state information reference signals (CSI-RSs) or synchronization signal blocks (SSBs); and

receive the beam report, wherein the beam report includes at least one resource indicator and a beam metric associated with the at least one resource indicator.

9. The BS of claim 8 , wherein:

the DL-related DCI includes M TCI states, where M≥1, and

each of the M TCI states maps to a set of measurement RS resources, and a union of the sets of measurement RS resources mapped to each of the M TCI states corresponds to the set of K 1 measurement RS resources.

10. The BS of claim 8 , wherein the transceiver transmits a configuration about the set of K 1 measurement RS resources.

11. The BS of claim 7 , wherein information on whether the value of the code point is the first value or the second value is via a separate signaling included in the DL-related DCI.

12. The BS of claim 7 , wherein when the value of the code point is the second value:

the transceiver is configured to transmit the DL transmission or to receive the UL reception via a beam associated with the at least one TCI state indicated via the code point,

wherein the beam refers to spatial quasi co-location (QCL) information used to transmit or receive at least one source reference signal (RS) included in the at least one TCI state.

13. A method for operating a user equipment (UE), the method comprising:

receiving configuration information related to a code point included in a downlink (DL)-related DL control information (DCI);

receiving, based on the configuration information, the DL-related DCI

identifying a value of the code point; and

determining, based on the value of the code point, whether to generate a beam report;

wherein when the value of the code point is a first value, the code point corresponds to a trigger for a beam report, and

wherein when the value of the code point is a second value, the code point corresponds to indicating at least one TCI state for DL reception or uplink (UL) transmission.

14. The method of claim 13 , further comprising:

when the value of the code point is the first value:

based on the code point, determining a set of K 1 measurement reference signal (RS) resources comprising one of or both of channel state information reference signals (CSI-RSs) or synchronization signal blocks (SSBs);

receiving the set of K 1 measurement RS resources;

based on a measurement of the set of K 1 measurement RS resources, determining the beam report; and

transmitting the beam report, wherein the beam report includes at least one resource indicator and a beam metric associated with the at least one resource indicator.

15. The method of claim 14 , wherein:

the DL-related DCI includes M TCI states, where M≥1, and

each of the M TCI states maps to a set of measurement RS resources, and a union of the sets of measurement RS resources mapped to each of the M TCI states corresponds to the set of K 1 measurement RS resources.

16. The method of claim 14 , further comprising receiving a configuration about the set of K 1 measurement RS resources.

17. The method of claim 13 , wherein information indicating whether the value of the code point is the first value or the second value is via a separate signaling included in the DL-related DCI.

18. The method of claim 13 , further comprising:

when the value of the code point is the second value:

determining a beam based on the at least one TCI state indicated via the code point; and

using the beam to receive the DL reception or to transmit the UL transmission, wherein the beam refers to spatial quasi co-location (QCL) information used to transmit or receive at least one source reference signal (RS) included in the at least one TCI state.