Channel state information (CSI) reference signal (RS) configuration with cross-component carrier CSI prediction algorithm

1. A method of determining channel state information on a component carrier at a device, comprising:

receiving, from a base station, a channel state information reference signal (CSI-RS) report configuration;

determining a mapping between first time-frequency resources corresponding to a first component carrier and second time-frequency resources corresponding to a second component carrier using a prediction algorithm;

receiving, from the base station, a channel state information reference signal (CSI-RS) on the first time-frequency resources corresponding to the first component carrier;

measuring first channel state information (CSI) on the first time-frequency resources corresponding to the first component carrier based on the received CSI-RS;

predicting second CSI on the second time-frequency resources corresponding to the second component carrier based on the measured first CSI using the prediction algorithm and further based on the mapping;

generating a CSI report based on the predicted second CSI; and

sending the CSI report to the base station,

wherein the CSI report is generated and sent based on the CSI-RS report configuration.

2. The method of claim 1 , wherein no CSI-RS is transmitted on the second time-frequency resources corresponding to the second component carrier and the second time-frequency resources are configured to carry a data transmission on a physical downlink shared channel (PDSCH).

3. The method of claim 1 ,

wherein the receiving CSI-RS report configuration includes receiving a CSI-RS resource configuration.

4. The method of claim 3 , wherein the prediction algorithm is known to the device, and determining the mapping comprises:

sending the mapping to the base station,

wherein the received CSI-RS resource configuration is a reconfigured CSI-RS resource configuration based on the mapping.

5. The method of claim 3 , wherein the prediction algorithm is known to the base station, and determining the mapping comprises:

receiving the prediction algorithm from the base station,

wherein the mapping is determined based on the received prediction algorithm, and

wherein the received CSI-RS resource configuration is an initial CSI-RS resource configuration.

6. The method of claim 3 , wherein the CSI-RS resource configuration includes a shadow CSI-RS resource configuration for the second time-frequency resources corresponding to the second component carrier, and wherein the second time-frequency resources are configured to carry a data transmission on a physical downlink shared channel (PDSCH).

7. The method of claim 3 , wherein the CSI-RS resource configuration includes a resource configuration for a mirrored bandwidth part (BWP) associated with the second time-frequency resources corresponding to the second component carrier.

8. The method of claim 1 , wherein the CSI report is generated and sent to the base station on at least one of:

a periodic basis;

a semi-persistent basis; or

an aperiodic basis.

9. The method of claim 1 , wherein the CSI report is sent via:

third time-frequency resources corresponding to the first component carrier;

fourth time-frequency resources corresponding to the second component carrier; or

both of the third time-frequency resources and the fourth time-frequency resources.

10. A device for determining channel state information on a component carrier, comprising:

at least one processor;

a transceiver communicatively coupled to the at least one processor; and

a memory communicatively coupled to the at least one processor, wherein the at least one processor is configured to:

determine a mapping between first time-frequency resources corresponding to a first component carrier and second time-frequency resources corresponding to a second component carrier using a prediction algorithm,

receive, from a base station, a channel state information reference signal (CSI-RS) report configuration,

receive, from the base station, a channel state information reference signal (CSI-RS) on the first time-frequency resources corresponding to the first component carrier,

measure first channel state information (CSI) on the first time-frequency resources corresponding to the first component carrier based on the received CSI-RS,

predict second CSI on the second time-frequency resources corresponding to the second component carrier based on the measured first CSI using the prediction algorithm and further based on the mapping,

generate a CSI report based on the predicted second CSI, and

send the CSI report to the base station,

wherein the CSI report is generated and sent based on the CSI-RS report configuration.

11. The device of claim 10 ,

wherein the at least one processor configured to receive the CSI-RS report configuration is further configured to receive a CSI-RS resource configuration.

12. The device of claim 11 , wherein the prediction algorithm is known to the device, and the at least one processor is further configured to:

send the mapping to the base station,

wherein the received CSI-RS resource configuration is a reconfigured CSI-RS resource configuration based on the mapping.

13. The device of claim 11 , wherein the prediction algorithm is known to the base station, and the at least one processor is further configured to:

receive the prediction algorithm from the base station,

wherein the mapping is determined based on the received prediction algorithm, and

wherein the received CSI-RS resource configuration is an initial CSI-RS resource configuration.

14. The device of claim 11 , wherein the CSI-RS resource configuration includes:

a shadow CSI-RS resource configuration for the second time-frequency resources corresponding to the second component carrier; or

a resource configuration for a mirrored bandwidth part (BWP) associated with the second time-frequency resources corresponding to the second component carrier.

15. The device of claim 10 , wherein:

the CSI report is generated and sent to the base station on at least one of a periodic basis, a semi-persistent basis, or an aperiodic basis; and

the CSI report is sent via:

third time-frequency resources corresponding to the first component carrier,

fourth time-frequency resources corresponding to the second component carrier, or

both of the third time-frequency resources and the fourth time-frequency resources.

16. A method of receiving channel state information of a component carrier at a base station, comprising:

determining a mapping between first time-frequency resources corresponding to a first component carrier and second time-frequency resources corresponding to a second component carrier, wherein the determining the mapping comprises receiving the mapping from a device;

transmitting a channel state information reference signal (CSI-RS) report configuration to the device;

transmitting, to the device, a channel state information reference signal (CSI-RS) on the first time-frequency resources corresponding to the first component carrier; and

receiving, from the device, a channel state information (CSI) report including predicted CSI on the second time-frequency resources corresponding to the second component carrier, the predicted CSI based on the CSI-RS transmitted on the first time-frequency resources corresponding to the first component carrier, wherein the CSI report is received based on the CSI-RS report configuration.

17. The method of claim 16 , wherein no CSI-RS is transmitted on the second time-frequency resources corresponding to the second component carrier and the second time-frequency resources are configured to carry a data transmission on a physical downlink shared channel (PDSCH).

18. The method of claim 16 ,

wherein the transmitting the CSI-RS report configuration includes transmitting a CSI-RS resource configuration.

19. The method of claim 18 ,

wherein the transmitted CSI-RS resource configuration is a reconfigured CSI-RS resource configuration based on the mapping.

20. The method of claim 18 , wherein the determining the mapping comprises:

determining the mapping based on a prediction algorithm known to the base station; and

transmitting the prediction algorithm to the device,

wherein the transmitted CSI-RS resource configuration is an initial CSI-RS resource configuration if the mapping is determined based on the prediction algorithm.

21. The method of claim 18 , wherein the CSI-RS resource configuration includes a shadow CSI-RS resource configuration for the second time-frequency resources corresponding to the second component carrier, and wherein the second time-frequency resources are configured to carry a data transmission on a physical downlink shared channel (PDSCH).

22. The method of claim 18 , wherein the CSI-RS resource configuration includes a resource configuration for a mirrored bandwidth part (BWP) associated with the second time-frequency resources corresponding to the second component carrier.

23. The method of claim 16 , wherein the CSI report is received from the device on at least one of:

a periodic basis;

a semi-persistent basis; or

an aperiodic basis.

24. The method of claim 16 , wherein the CSI report is received via:

third time-frequency resources corresponding to the first component carrier;

fourth time-frequency resources corresponding to the second component carrier; or

both of the third time-frequency resources and the fourth time-frequency resources.

25. A base station for receiving channel state information of a component carrier, comprising:

at least one processor;

a transceiver communicatively coupled to the at least one processor; and

a memory communicatively coupled to the at least one processor, wherein the at least one processor is configured to:

determine a mapping between first time-frequency resources corresponding to a first component carrier and second time-frequency resources corresponding to a second component carrier, wherein the at least one processor is configured to receive the mapping from a device,

transmit a channel state information reference signal (CSI-RS) report configuration to the device;

transmit, to the device, a channel state information reference signal (CSI-RS) on the first time-frequency resources corresponding to the first component carrier, and

receive, from the device, a channel state information (CSI) report including predicted CSI on the second time-frequency resources corresponding to the second component carrier, the predicted CSI based on the CSI-RS transmitted on the first time-frequency resources corresponding to the first component carrier, wherein the CSI report is received based on the CSI-RS report configuration.

26. The base station of claim 25 ,

wherein the at least one processor configured to transmit the CSI-RS report configuration is further configured to transmit a CSI-RS resource configuration.

27. The base station of claim 26 ,

wherein the transmitted CSI-RS resource configuration is a reconfigured CSI-RS resource configuration based on the mapping.

28. The base station of claim 26 , wherein the at least one processor is further configured to:

determine the mapping based on a prediction algorithm known to the base station; and

transmit the prediction algorithm to the device,

wherein the transmitted CSI-RS resource configuration is an initial CSI-RS resource configuration if the mapping is determined based on the prediction algorithm.

29. The base station of claim 26 , wherein the CSI-RS resource configuration includes:

a shadow CSI-RS resource configuration for the second time-frequency resources corresponding to the second component carrier; or

a resource configuration for a mirrored bandwidth part (BWP) associated with the second time-frequency resources corresponding to the second component carrier.

30. The base station of claim 25 , wherein:

the CSI report is received from the device on at least one of a periodic basis, a semi-persistent basis, or an aperiodic basis; and

the CSI report is received via:

third time-frequency resources corresponding to the first component carrier,

fourth time-frequency resources corresponding to the second component carrier, or

both of the third time-frequency resources and the fourth time-frequency resources.