EPDCCH resource and quasi-co-location management in LTE

1. A method of wireless communication at a user equipment (UE), comprising:

determining, at the UE, at least a first resource set and a second resource set configured for an enhanced physical downlink control channel (EPDCCH);

determining, at the UE, a common set of aggregation levels based on a first set of aggregation levels for the first resource set and a second, different set of aggregation levels for the second resource set;

determining, at the UE, first rate-matching parameters for the first resource set and second rate-matching parameters for the second resource set, the first rate-matching parameters being different from the second rate-matching parameters; and

processing the control channel, at the UE, using at least the common set of aggregation levels and the first rate-matching parameters and second rate-matching parameters.

2. The method of claim 1 , wherein the determining the common set of aggregation levels for the first resource set and the second resource sets comprises determining:

a first number of available resources in the first resource set,

a second number of available resources in the second resource set,

or both.

3. The method of claim 2 , wherein the determining the common set of aggregation levels further comprises:

comparing the first number of available resources to a threshold value, the second number of available resources to the threshold value, or both; and

selecting the common set of aggregation levels based on the comparison.

4. The method of claim 1 , wherein the first rate-matching parameters are configured to rate-match around all channel state information reference signals (CSI-RS) in the first resource set or rate-match around a subset of the CSI-RS in the first resource set, and

wherein the second rate-matching parameters are configured to rate-match around all of the CSI-RS on the second resource set or rate-match around a subset of the CSI-RS on the second resource set.

5. The method of claim 1 , wherein the first rate-matching parameters are configured to rate-match around all cell-specific reference signals (CRS) in the first resource set or rate-match around a subset of the CRS on the first resource set, and

wherein the second rate-matching parameters are configured to rate-match around all of the CRS on the second resource set or rate-match around a subset of the CRS in the second resource set.

6. The method of claim 1 , wherein the first rate-matching parameters are determined based on a first radio resource control (RRC) configuration and the second rate-matching parameters are determined based on a second RRC configuration.

7. An apparatus for wireless communication at a user equipment (UE), comprising:

means for determining, at the UE, at least a first resource set and a second resource set configured for an enhanced physical downlink control channel (EPDCCH);

means for determining, at the UE, a common set of aggregation levels based on a first set of aggregation levels for the first resource set and a second, different set of aggregation levels for the second resource set;

means for determining, at the UE, first rate-matching parameters for the first resource set and second rate-matching parameters for the second resource set, the first rate-matching parameters being different from the second rate-matching parameters; and

means for processing, at the UE, the control channel using at least the common set of aggregation levels and the first rate-matching parameters and second rate-matching parameters.

8. The apparatus of claim 7 , wherein the means for determining the common set of aggregation levels for the first resource set and the second resource sets determines:

a first number of available resources in the first resource set,

a second number of available resources in the second resource set,

or both.

9. The apparatus of claim 8 , wherein the means for determining the common set of aggregation levels is further configured to:

compare the first number of available resources to a threshold value, the second number of available resources to the threshold value, or both; and

select the common set of aggregation levels based on the comparison.

10. An apparatus for wireless communication at a user equipment (UE), comprising:

a memory; and

at least one processor coupled to the memory and configured to:

determine, at the UE, at least a first resource set and a second resource set configured for an enhanced physical downlink control channel (EPDCCH);

determine, at the UE, a common set of aggregation levels based on a first set of aggregation levels for the first resource set and a second, different set of aggregation levels for the second resource set;

determine, at the UE, first rate-matching parameters for the first resource set and second rate-matching parameters for the second resource set, the first rate-matching parameters being different from the second rate-matching parameters; and

process, at the UE, the control channel using at least the common set of aggregation levels and the first rate-matching parameters and second rate-matching parameters.

11. The apparatus of claim 10 , wherein the determining the common set of aggregation levels for the first resource set and the second resource sets comprises determining:

a first number of available resources in the first resource set,

a second number of available resources in the second resource set,

or both.

12. The apparatus of claim 11 , wherein the determining the common set of aggregation levels further comprises:

comparing the first number of available resources to a threshold value, the second number of available resources to the threshold value, or both; and

selecting the common set of aggregation levels based on the comparison.

13. The apparatus of claim 10 , wherein the first rate-matching parameters are configured to rate-match around all channel state information reference signals (CSI-RS) in the first resource set or rate-match around a subset of the CSI-RS in the first resource set, and

wherein the second rate-matching parameters are configured to rate-match around all of the CSI-RS on the second resource set or rate-match around a subset of the CSI-RS on the second resource set.

14. The apparatus of claim 10 , wherein the first rate-matching parameters are configured to rate-match around all cell-specific reference signals (CRS) in the first resource set or rate-match around a subset of the CRS on the first resource set, and

wherein the second rate-matching parameters are configured to rate-match around all of the CRS on the second resource set or rate-match around a subset of the CRS in the second resource set.

15. The apparatus of claim 10 , wherein the first rate-matching parameters are determined based on a first radio resource control (RRC) configuration and the second rate-matching parameters are determined based on a second RRC configuration.

16. A non-transitory computer-readable medium storing computer executable code for wireless communication at a user equipment (UE), comprising code for:

determining, at the UE, at least a first resource set and a second resource set configured for an enhanced physical downlink control channel (EPDCCH);

determining, at the UE, a common set of aggregation levels based on a first set of aggregation levels for the first resource set and a second, different set of aggregation levels for the second resource set;

determining, at the UE, first rate-matching parameters for the first resource set and second rate-matching parameters for the second resource set, the first rate-matching parameters being different from the second rate-matching parameters; and

processing, at the UE, the control channel using at least the common set of aggregation levels and the first rate-matching parameters and second rate-matching parameters.

17. The computer-readable medium of claim 16 , wherein the determining the common set of aggregation levels for the first resource set and the second resource sets comprises determining:

a first number of available resources in the first resource set,

a second number of available resources in the second resource set,

or both.

18. The computer-readable medium of claim 17 , wherein the determining the common set of aggregation levels further comprises:

comparing the first number of available resources to a threshold value, the second number of available resources to the threshold value, or both; and

selecting the common set of aggregation levels based on the comparison.