Carrier aggregation capability framework
Certain aspects of the present disclosure provide techniques for indicating carrier aggregation capabilities. An example method generally includes signaling, to a base station (BS), carrier aggregation capability information indicating a capability for performing separate operations concurrently on a plurality of component carriers; receiving a carrier aggregation configuration indicating component carriers designated for the separate operations; and receiving or transmitting transmissions based on the carrier aggregation configuration.
1. An apparatus for wireless communication, comprising:
a transceiver configured to:
transmit, to a base station (BS), carrier aggregation capability information indicating a capability for performing separate operations concurrently on a plurality of component carriers, wherein the capability information include at least one of a first number of component carriers for communicating with a single transmission-reception point (TRP), or a second number of component carriers indicated by a first ratio for communicating with multiple TRPs, the capability information further include at least one of a third number of component carriers, indicated by a maximum number of component carriers designated for processing in-order transmissions, a fourth number of component carriers indicated by a second ratio or a maximum number of component carries designated for processing out-of-order transmissions, or a fifth number of component carriers for processing transmissions according to a priority level,
receive a carrier aggregation configuration indicating component carriers designated for the separate operations, and
receive or transmit transmissions based on the carrier aggregation configuration.
2. The apparatus of claim 1 , wherein:
the first number of component carriers is indicated by a maximum number of component carriers designated for communication with the single TRP; and
the second number of component carriers is indicated by the first ratio of the maximum number of component carriers designed for communication with the single TRP.
3. The apparatus of claim 1 , wherein:
the fourth number of component carriers is indicated by the second ratio of component
carriers designated for processing in-order transmissions.
4. The apparatus of claim 1 , wherein the fifth number of component carriers is indicated by a third ratio of the number of component carries designed for processing out-of-order transmissions.
5. The apparatus of claim 1 , wherein the capability for performing the separate operations is indicated by a set of component carrier combinations, wherein each of the component carrier combinations includes a number of component carriers for each of the separate operations.
6. The apparatus of claim 5 , wherein each of the component carrier combinations includes a first number of component carriers designated for a first operation and a second number of component carriers designated for a second operation.
7. The apparatus of claim 5 , wherein a first number of component carriers is designated for communication with the single TRP, and a second number of component carriers is designated for communication with multiple TRPs.
8. The apparatus of claim 1 , wherein the carrier aggregation configuration exceeds the carrier aggregation capability information signaled to the BS.
9. The apparatus of claim 8 , further comprising a processing system configured to determine to drop a first transmission and process a second transmission out of order, if the carrier aggregation configuration exceeds the carrier aggregation capability information signaled to the BS.
10. The apparatus of claim 9 , wherein the first transmission is from or to a first TRP and the second transmission is from or to a second TRP.
11. The apparatus of claim 9 , wherein the second transmission has a higher priority than the first transmission.
12. The apparatus of claim 9 , wherein the first and second transmissions are from or to a same TRP.
13. The apparatus of claim 9 , wherein the transceiver is configured to receive, from the BS, one or more rules for dropping a transmission, wherein determining to drop the first transmission is based at least in part on the one or more rules.
14. An apparatus for wireless communication, comprising:
a transceiver configured to receive, from a user equipment (UE), carrier aggregation capability information indicating a capability for performing separate operations concurrently on a plurality of component carriers by the UE, wherein the capability information include at least one of a first number of component carriers for communicating with a single transmission-reception point (TRP), or a second number of component carriers indicated by a first ratio for communicating with multiple TRPs, the capability information further include at least one of a third number of component carriers indicated by a maximum number of component carries designated for processing in-order transmissions, a fourth number of component carriers indicated by a second ratio or a maximum number of component carries designated for processing out-of-order transmissions, or a fifth number of component carriers for processing transmissions according to a priority level; and
a processing system configured to determine a carrier aggregation configuration for the UE based on the carrier aggregation capability information;
wherein the transceiver is configured to transmit, to the UE, the carrier aggregation configuration and transmit or receive transmissions based at least in part on the carrier aggregation configuration.
15. The apparatus of claim 14 , wherein:
the first number of component carriers is indicated by a maximum number of component carriers designated for communication with the single TRP;
the second number of component carriers is indicated by the first ratio of the maximum number of component carriers designed for communication with the single TRP; and
the processing system is configured to determine that a sum of component carriers based on the first ratio is less than or equal to the maximum number of component carriers designated for communication with the single TRP.
16. The apparatus of claim 14 , wherein:
the fourth number of component carriers is indicated by the second ratio of a maximum number of component carriers designated for processing in-order transmissions.
17. The apparatus of claim 16 , wherein the processing system is configured to determine that a sum of component carriers based on the second ratio is less than or equal to the maximum number of component carriers designated for processing in-order transmissions.
18. The apparatus of claim 16 , where the processing system is configured to identify that a total of component carriers for processing in-order transmissions is less than or equal to the maximum number of component carriers designated for processing in-order transmissions and a total of component carriers for out-of-order transmissions is less than or equal to the maximum number of component carriers designated for processing out-of-order transmissions.
19. The apparatus of claim 16 , wherein:
the fifth number of component carriers is indicated by a third ratio of the number of component carriers designed for processing out-of-order transmissions;
the processing system is configured to determine that a sum of component carriers based on the second ratio and the third ratio is less than or equal to the maximum number of component carriers designated for processing in-order transmissions.
20. The apparatus of claim 14 , wherein:
the capability for performing the separate operations is indicated by a set of component carrier combinations, wherein each of the component carrier combinations includes a number of component carriers for each of the separate operations; and
the processing system is configured to determine component carriers that satisfy at least one of the component carrier combinations.
21. The apparatus of claim 20 , wherein each of the component carrier combinations includes a first number of component carriers designated for a first operation and a second number of component carriers designated for a second operation.
22. The apparatus of claim 21 , wherein the first number of component carriers is designated for communication with a single TRP, and the second number of component carriers is designated for communication with multiple TRPs.
23. The apparatus of claim 14 , wherein:
the capability for performing the separate operations is indicated by a maximum number of component carriers designated for communication with a single TRP, a first ratio of the maximum number of component carriers designated for communicating with the single TRP for supporting communication with multiple TRPs versus a single TRP, and a second ratio of the maximum number of component carriers designated for processing in-order transmissions for supporting out-of-order transmissions; and
the processing system is configured to determine that a sum of component carriers based on the first ratio and the second ratio is less than the maximum number of component carriers.
24. The apparatus of claim 14 , wherein the carrier aggregation configuration exceeds the carrier aggregation capability information received by the BS.
25. The apparatus of claim 24 , wherein the transceiver is configured to signal, to the UE, one or more rules for dropping a transmission in a processing pipeline when the carrier aggregation configuration exceeds a processing capability of the UE.
26. A method of wireless communication by a user equipment (UE), comprising:
signaling, to a base station (BS), carrier aggregation capability information indicating a capability for performing separate operations concurrently on a plurality of component carriers, wherein the capability information include at least one of a first number of component carriers for communicating with a single transmission-reception point (TRP), or a second number of component carriers indicated by a first ratio for communicating with multiple TRPs, the capability information further include at least one of a third number of component carries indicated by a maximum number of component carries designated for processing in-order transmissions, a fourth number of component carriers indicated by a second ratio or a maximum number of component carries designated for processing out-of-order transmissions, or a fifth number of component carriers for processing transmissions according to a priority level;
receiving a carrier aggregation configuration indicating component carriers designated for the separate operations; and
receiving or transmitting transmissions based on the carrier aggregation configuration.
27. The method of claim 26 , wherein:
the first number of component carriers is indicated by a maximum number of component carriers designated for communication with a single TRP;
the second number of component carriers is indicated by the first ratio of the maximum number of component carriers designated for communication with the single TRP;
the third number of component carriers is indicated by a maximum number of component carriers designated for processing in-order transmissions;
the fourth number of component carriers is indicated by the second ratio of the maximum number of component carriers designed for processing in-order transmissions or a maximum number of component carriers designated for processing out-of-order transmissions; and
the fifth number of component carriers is indicated by a third ratio of the number of component carriers designed for processing out-of-order transmissions.
28. The method of claim 26 , wherein the capability for performing the separate operations is indicated by a set of component carrier combinations, wherein each of the component carrier combinations includes a number of component carriers for each of the separate operations.
29. The method of claim 26 , wherein the capability for performing the separate operations is indicated by a maximum number of component carriers designated for communication with the single TRP, the first ratio for supporting communication with multiple TRPs versus single TRP, and the second ratio for supporting out-of-order transmissions.
30. The apparatus of claim 26 , wherein the carrier aggregation configuration exceeds the carrier aggregation capability information signaled to the BS.
31. The method of claim 30 , further comprising a processing system configured to determine to drop a first transmission and process a second transmission out of order, if the carrier aggregation configuration exceeds the carrier aggregation capability information signaled to the BS.
32. The method of claim 31 , wherein the transceiver is configured to receive, from the BS, one or more rules for dropping a transmission, wherein determining to drop the first transmission is based at least in part on the one or more rules.
33. A method of wireless communication by a base station (BS), comprising:
receiving, from a user equipment (UE), carrier aggregation capability information indicating a capability for performing separate operations concurrently on a plurality of component carriers by the UE, wherein the capability information include at least one of a first number of component carriers for communicating with a single transmission-reception point (TRP), or a second number of component carriers indicated by a first ratio for communicating with multiple TRPs, the capability information further include at least one of a third number of component carriers indicated by a maximum number component carries designated for processing in-order transmissions, a fourth number of component carriers indicated by a second ratio or a maximum number of component carriers designated for processing out-of-order transmissions, or a fifth number of component carriers for processing transmissions according to a priority level;
determining a carrier aggregation configuration for the UE based on the carrier aggregation capability information;
signaling, to the UE, the carrier aggregation configuration; and
transmitting or receiving transmissions based at least in part on the carrier aggregation configuration.
34. The method of claim 33 , wherein:
the first number of component carriers is indicated by a maximum number of component carriers designated for communication with a single TRP;
the second number of component carriers is indicated by the first ratio of the maximum number of component carriers designated for communication with the single TRP;
the third number of component carriers is indicated by a maximum number of component carriers designated for processing in-order transmissions;
the fourth number of component carriers is indicated by the second ratio of the maximum number of component carriers designated for processing in-order transmissions or a maximum number of component carriers designated for processing out-of-order transmissions; and
the fifth number of component carriers is indicated by a third ratio of the number of component carriers designed for processing out-of-order transmissions.
35. The method of claim 34 , wherein the processing system is configured to:
determine that a sum of component carriers based on the first ratio is less than or equal to the maximum number of component carriers designated for communication with the single TRP,
determine that a sum of component carriers based on the second ratio is less than or equal to the maximum number of component carriers designated for processing in-order transmissions,
identify that a total of component carriers for processing in-order transmissions is less than or equal to the maximum number of component carriers designated for processing in-order transmissions and a total of component carriers for out-of-order transmissions is less than or equal to the maximum number of component carriers designated for processing out-of-order transmissions, or
determine that a sum of component carriers based on the second ratio and the third ratio is less than or equal to the maximum number of component carriers designated for processing in-order transmissions.
36. The method of claim 33 , wherein:
the capability for performing the separate operations is indicated by a set of component carrier combinations, wherein each of the component carrier combinations includes a number of component carriers for each of the separate operations; and
a processing system configured to determine component carriers that satisfy at least one of the component carrier combinations.
37. The method of claim 33 , wherein:
the capability for performing the separate operations is indicated by a maximum number of component carriers designated for communication with the single TRP, the first ratio for supporting communication with multiple TRPs versus a single TRP, and the second ratio for supporting out-of-order transmissions; and
the processing system is configured to determine that a sum of component carriers based on the first ratio and the second ratio is less than the maximum number of component carriers.
38. The method of claim 33 , wherein the carrier aggregation configuration exceeds the carrier aggregation capability information received by the BS.