EPDCCH resource and quasi-co-location management in LTE
A method, an apparatus, and a computer program product for wireless communication are provided. In an aspect, the apparatus may configure at least a first resource set and a second resource set for a control channel. The first and second resource sets may be configured with a common reference signal configuration. The apparatus also configures first rate-matching parameters for the first resource set and second rate-matching parameters for the second resource set. Then, the apparatus transmits the first rate-matching parameters and the second rate-matching parameters and transmits the control channel using the first resource set and the second resource set.
1. A method of wireless communication at a user equipment, comprising:
receiving a configuration of at least a first resource set and a second resource set for an enhanced physical downlink control channel (EPDCCH), wherein the first and second resource sets are configured with a common channel state information reference signals (CSI-RS) configuration;
receiving resource set dependent rate matching parameters for the EPDCCH having the common CSI-RS configuration, the resource set dependent rate matching parameters including first rate-matching parameters configured for the first resource set and second rate-matching parameters configured for the second resource set, the first rate-matching parameters being different from the second rate-matching parameters; and
receiving the EPDCCH based on the first resource set and the second resource set,
wherein the first rate-matching parameters correspond to a first CSI-RS comprised in the common CSI-RS configuration, wherein EPDCCH resource elements (REs) in the first resource set are rate-matched around the first CSI-RS, and
wherein the second rate-matching parameters correspond to a second CSI-RS comprised in the common CSI-RS configuration, wherein EPDCCH REs in the second resource set are rate-matched around the second CSI-RS.
2. The method of claim 1 , wherein the first and second resource sets are further configured using a common reference signals (CRS) configuration.
3. The method of claim 1 , wherein the first rate-matching parameters are configured via a first radio resource control (RRC) configuration and the second rate-matching parameters are configured via a second RRC configuration.
4. A method of wireless communication at a user equipment, comprising:
receiving a configuration of at least a first resource set and a second resource set for an enhanced physical downlink control channel (EPDCCH), wherein the first and second resource sets are configured with a common cell-specific reference signal (CRS) configuration;
receiving resource set dependent rate matching parameters for the EPDCCH having the common CRS configuration, the resource set dependent rate matching parameters including first rate-matching parameters configured for the first resource set and second rate-matching parameters configured for the second resource set, the first rate-matching parameters being different from the second rate-matching parameters; and
receiving the EPDCCH using the first resource set and the second resource set,
wherein the first rate-matching parameters correspond to a first CRS comprised in the common CRS configuration, wherein EPDCCH resource elements (REs) in the first resource set are rate-matched around the first CRS, and
wherein the second rate-matching parameters correspond to a second CRS comprised in the common CRS configuration , wherein EPDCCH REs in the second resource set are rate-matched around the second CRS.
5. The method of claim 4 , wherein the first and second resource sets are further configured using a common CSI-RS configuration.
6. The method of claim 4 , wherein the first rate-matching parameters are configured via a first radio resource control (RRC) configuration and the second rate-matching parameters are configured via a second RRC configuration.
7. An apparatus for wireless communication at a user equipment, comprising:
means for receiving a configuration of at least a first resource set and a second resource set for an enhanced physical downlink control channel (EPDCCH), wherein the first and second resource sets are configured with a common channel state information reference signals (CSI-RS) configuration;
means for receiving resource set dependent rate matching parameters for the EPDCCH having the common CSI-RS configuration, the resource set dependent rate matching parameters including first rate-matching parameters configured for the first resource set and second rate-matching parameters configured for the second resource set, the first rate-matching parameters being different from the second rate-matching parameters; and
means for receiving the EPDCCH based on the first resource set and the second resource set,
wherein the first rate-matching parameters correspond to a first CSI-RS comprised in the common CSI-RS configuration, wherein EPDCCH resource elements (REs) in the first resource set are rate-matched around the first CSI-RS, and
wherein the second rate-matching parameters correspond to a second CSI-RS comprised in the common CSI-RS configuration, wherein EPDCCH REs in the second resource set are rate-matched around the second CSI-RS.
8. The apparatus of claim 7 , wherein the first and second resource sets are further configured using a common reference signals (CRS) configuration.
9. The apparatus of claim 7 , wherein the first rate-matching parameters are configured via a first radio resource control (RRC) configuration and the second rate-matching parameters are configured via a second RRC configuration.
10. An apparatus of wireless communication at a user equipment, comprising:
means for receiving a configuration of at least a first resource set and a second resource set for an enhanced physical downlink control channel (EPDCCH), wherein the first and second resource sets are configured with a common cell-specific reference signal (CRS) configuration;
means for receiving resource set dependent rate matching parameters for the EPDCCH having the common CRS configuration, the resource set dependent rate matching parameters including first rate-matching parameters configured for the first resource set and second rate-matching parameters configured for the second resource set, the first rate-matching parameters being different from the second rate-matching parameters; and
means for receiving the EPDCCH using the first resource set and the second resource set,
wherein the first rate-matching parameters correspond to a first CRS comprised in the common CRS configuration, wherein EPDCCH resource elements (REs) in the first resource set are rate-matched around the first CRS, and
wherein the second rate-matching parameters correspond to a second CRS comprised in the common CRS configuration, wherein EPDCCH REs in the second resource set are rate-matched around the second CRS.
11. The apparatus of claim 10 , wherein the first and second resource sets are further configured using a common CSI-RS configuration.
12. The apparatus of claim 10 , wherein the first rate-matching parameters are configured via a first radio resource control (RRC) configuration and the second rate-matching parameters are configured via a second RRC configuration.
13. An apparatus for wireless communication at a user equipment, comprising:
a memory; and
at least one processor coupled to the memory and configured to:
receive a configuration of at least a first resource set and a second resource set for an enhanced physical downlink control channel (EPDCCH), wherein the first and second resource sets are configured with a common channel state information reference signals (CSI-RS) configuration;
receive resource set dependent rate matching parameters for the EPDCCH having the common CSI-RS configuration, the resource set dependent rate matching parameters including first rate-matching parameters configured for the first resource set and second rate-matching parameters configured for the second resource set, the first rate-matching parameters being different from the second rate-matching parameters; and
receive the EPDCCH based on the first resource set and the second resource set,
wherein the first rate-matching parameters correspond to a first CSI-RS comprised in the common CSI-RS configuration, wherein EPDCCH resource elements (REs) in the first resource set are rate-matched around the first CSI-RS, and
wherein the second rate-matching parameters correspond to a second CSI-RS comprised in the common CSI-RS configuration, wherein EPDCCH REs in the second resource set are rate-matched around the second CSI-RS.
14. The apparatus of claim 13 , wherein the first and second resource sets are further configured using a common reference signals (CRS) configuration.
15. The apparatus of claim 13 , wherein the first rate-matching parameters are configured via a first radio resource control (RRC) configuration and the second rate-matching parameters are configured via a second RRC configuration.
16. An apparatus for wireless communication at a user equipment, comprising:
a memory; and
at least one processor coupled to the memory and configured to:
receive a configuration of at least a first resource set and a second resource set an enhanced physical downlink control channel (EPDCCH), wherein the first and second resource sets are configured with a common cell-specific reference signal (CRS) configuration;
receive resource set dependent rate matching parameters for the EPDCCH having the common CRS configuration, the resource set dependent rate matching parameters including first rate-matching parameters configured for the first resource set and second rate-matching parameters configured for the second resource set, the first rate-matching parameters being different from the second rate-matching parameters; and
receive the EPDCCH using the first resource set and the second resource set,
wherein the first rate-matching parameters correspond to a first CRS comprised in the common CRS configuration, wherein EPDCCH resource elements (REs) in the first resource set are rate-matched around the first CRS, and
wherein the second rate-matching parameters correspond to a second CRS comprised in the common CRS configuration, wherein EPDCCH REs in the second resource set are rate-matched around the second CRS.
17. The apparatus of claim 16 , wherein the first and second resource sets are further configured using a common CSI-RS configuration.
18. The apparatus of claim 16 , wherein the first rate-matching parameters are configured via a first radio resource control (RRC) configuration and the second rate-matching parameters are configured via a second RRC configuration.
19. A non-transitory computer-readable medium storing computer executable code for wireless communication at a user equipment, comprising code to:
receive a configuration of at least a first resource set and a second resource set for an enhanced physical downlink control channel (EPDCCH), wherein the first and second resource sets are configured with a common channel state information reference signals (CSI-RS) configuration;
receive resource set dependent rate matching parameters for the EPDCCH having the common CSI-RS configuration, the resource set dependent rate matching parameters including first rate-matching parameters configured for the first resource set and second rate-matching parameters configured for the second resource set, the first rate-matching parameters being different from the second rate-matching parameters; and
receive the EPDCCH based on the first resource set and the second resource set,
wherein the first rate-matching parameters correspond to a first CSI-RS comprised in the common CSI-RS configuration, wherein EPDCCH resource elements (REs) in the first resource set are rate-matched around the first CSI-RS, and
wherein the second rate-matching parameters correspond to a second CSI-RS comprised in the common CSI-RS configuration, wherein EPDCCH REs in the second resource set are rate-matched around the second CSI-RS.
20. The non-transitory computer-readable medium of claim 19 , wherein the first and second resource sets are further configured using a common reference signals (CRS) configuration.
21. The non-transitory computer-readable medium of claim 19 , wherein the first rate-matching parameters are configured via a first radio resource control (RRC) configuration and the second rate-matching parameters are configured via a second RRC configuration.
22. A non-transitory computer-readable medium storing computer executable code for wireless communication at a user equipment, comprising code to:
receive a configuration of at least a first resource set and a second resource set for an enhanced physical downlink control channel (EPDCCH), wherein the first and second resource sets are configured with a common cell-specific reference signal (CRS) configuration;
receive resource set dependent rate matching parameters for the EPDCCH having the common CRS configuration, the resource set dependent rate matching parameters including first rate-matching parameters configured for the first resource set and second rate-matching parameters configured for the second resource set, the first rate-matching parameters being different from the second rate-matching parameters; and
receive the EPDCCH using the first resource set and the second resource set,
wherein the first rate-matching parameters correspond to a first CRS comprised in the common CRS configuration, wherein EPDCCH resource elements (REs) in the first resource set are rate-matched around the first CRS, and
wherein the second rate-matching parameters correspond to a second CRS comprised in the common CRS configuration, wherein EPDCCH REs in the second resource set are rate-matched around the second CRS.
23. The non-transitory computer-readable medium of claim 22 , wherein the first and second resource sets are further configured using a common CSI-RS configuration.
24. The non-transitory computer-readable medium of claim 22 , wherein the first rate-matching parameters are configured via a first radio resource control (RRC) configuration and the second rate-matching parameters are configured via a second RRC configuration.