NAICS signaling for advanced LTE features
A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus may be a user equipment that receives interference cancellation information from a base station. Various aspects are described for employing interference cancellation information perform interference suppression in the presence of interference associated with different component carriers when employing carrier aggregation, small cell discovery signals, variations in data channel transmissions associated with certain transmission modes, and higher order QAM rates.
1. A method of wireless communication of a user equipment (UE), comprising:
receiving interference suppression information from a base station;
receiving a transmission through at least one component carrier of a plurality of component carriers; and
for each component carrier of the at least one component carrier, determining
whether to perform interference suppression on a particular component carrier, and
a type of interference suppression to perform on the particular component carrier based on a configuration associated with the particular component carrier and the interference suppression information when it is determined to perform interference suppression on the particular component carrier.
2. The method of claim 1 , wherein the determining further comprises
determining whether the UE has allocated processing resources for performing interference suppression on the particular component carrier based on at least one of:
prior processing resources allocated to perform interference suppression,
a number of component carriers in the a plurality of component carriers, or
a priority associated with the particular component carrier; and
performing interference suppression on the particular component carrier when it is determined that the UE has the allocated processing resources.
3. The method of claim 1 , wherein the interference suppression information includes a priority associated with the particular component carrier.
4. The method of claim 1 , wherein the determining further comprises
determining whether the particular component carrier is a primary component carrier or a secondary component carrier, and
the method further comprises:
performing interference suppression on the particular component carrier when the particular component carrier is determined to be a secondary component carrier.
5. The method of claim 4 , further comprising:
refraining from performing interference suppression on the particular component carrier when the particular component carrier is determined to be a primary component carrier; and
processing the primary component carrier in accordance with an enhanced inter-cell interference coordination (eICIC).
6. The method of claim 1 , wherein the determining further comprises
determining an antenna configuration associated with the particular component carrier, and
wherein determining whether to perform the interference suppression on the particular component carrier or a type of interference suppression to perform on the particular component carrier is based on the determined antenna configuration.
7. The method of claim 1 , wherein the determining further comprises
determining whether the particular component carrier uses a cell-specific reference signal (CRS) based transmission mode (TM) or a UE-specific reference signal (UE-RS) based TM, and
determining whether to perform the interference suppression or a type of interference suppression to perform based on whether the particular component carrier uses a CRS-based TM or a UE-RS based TM.
8. The method of claim 1 , wherein the determining further comprises
determining whether the particular component carrier uses a cell-specific reference signal (CRS) based transmission scheme or a demodulation reference signal (DMRS) based transmission scheme, and
determining whether to perform the interference suppression or a type of interference suppression to perform based on whether the particular component carrier uses a CRS-based transmission scheme or a DMRS based transmission scheme.
9. The method of claim 1 , wherein the determining further comprises
determining, based on the transmission mode of the particular component carrier, at least one of:
whether to perform the interference suppression; or
a type of interference suppression to perform.
10. The method of claim 1 , wherein the determining further comprises
determining a type of services provided through the particular component carrier, and
determining whether to perform the interference suppression or a type of interference suppression to perform based on the determined type of services provided through the particular component carrier.
11. The method of claim 1 , wherein the determining further comprises
determining whether the particular component carrier utilizes licensed spectrum or unlicensed spectrum, and
determining whether to perform the interference suppression or a type of interference suppression to perform based on whether the particular component carrier utilizes licensed spectrum or unlicensed spectrum.
12. The method of claim 1 , wherein:
a first type of interference suppression comprises network assisted interference cancellation and suppression (NAICS) that is associated with at least one first component carrier of the plurality of component carriers, and
a second type of interference suppression comprises enhanced inter-cell interference coordination (eICIC) that is associated with at least one second component carrier of the plurality of component carriers.
13. An apparatus for wireless communication, the apparatus including a user equipment (UE), the apparatus comprising:
means for receiving interference suppression information from a base station;
means for receiving a transmission through at least one component carrier of a plurality of component carriers; and
means for determining for each component carrier of the at least one component carrier
whether to perform interference suppression on a particular component carrier, and
a type of interference suppression to perform on the particular component carrier based on a configuration associated with the particular component carrier and the interference suppression information when it is determined to perform interference suppression on the particular component carrier.
14. The apparatus of claim 13 , wherein the means for determining is configured to:
determine whether the UE has allocated processing resources for performing interference suppression on the particular component carrier based on at least one of
prior processing resources allocated to perform interference suppression,
a number of component carriers in the a plurality of component carriers, or
a priority associated with the particular component carrier, wherein the apparatus further comprises
means for performing interference suppression on the particular component carrier when it is determined that the UE has the allocated resources.
15. The apparatus of claim 13 , wherein the interference suppression information includes a priority associated with the particular component carrier.
16. The apparatus of claim 13 , wherein
the means for determining is configured to determine whether the particular component carrier is a primary component carrier or a secondary component carrier, and
the apparatus further comprises means for performing interference suppression on the particular component carrier when the particular component carrier is determined to be a secondary component carrier.
17. The apparatus of claim 16 , further comprising:
means for refraining from performing interference suppression on the particular component carrier when the particular component carrier is determined to be a primary component carrier; and
means for processing the primary component carrier in accordance with an enhanced inter-cell interference coordination (eICIC).
18. The apparatus of claim 13 , wherein the means for determining is configured to determine an antenna configuration associated with the particular component carrier, and is configured to determine whether to perform the interference suppression or a type of interference suppression to perform based on a determined antenna configuration.
19. The apparatus of claim 13 , wherein the means for determining is configured to determine whether the particular component carrier uses a cell-specific reference signal (CRS) based transmission mode (TM) or a UE-specific reference signal (UE-RS) based TM, and is configured to determine whether to perform the interference suppression or a type of interference suppression to perform based on whether the particular component carrier uses a CRS-based TM or a UE-RS based TM.
20. The apparatus of claim 13 , wherein the means for determining is configured to determine whether the particular component carrier uses a cell-specific reference signal (CRS) based transmission scheme or a demodulation reference signal (DMRS) based transmission scheme, and is configured to determine whether to perform the interference suppression or a type of interference suppression to perform based on whether the particular component carrier uses a CRS-based transmission scheme or a DMRS based transmission scheme.
21. The apparatus of claim 13 , wherein the means for determining is configured to determine, based on the transmission mode of the particular component carrier, at least one of:
whether to perform the interference suppression; or
a type of interference suppression to perform.
22. The apparatus of claim 13 , wherein the means for determining is configured to determine a type of services provided through the particular component carrier, and is configured to determine whether to perform the interference suppression or a type of interference suppression to perform based on the determined type of services provided through the particular component carrier.
23. The apparatus of claim 13 , wherein the means for determining is configured to determine whether the particular component carrier utilizes licensed spectrum or unlicensed spectrum, and is configured to determine whether to perform the interference suppression or a type of interference suppression to perform based on whether the particular component carrier utilizes licensed spectrum or unlicensed spectrum.
24. An apparatus for wireless communication, the apparatus including a user equipment (UE), the apparatus comprising:
a memory; and
at least one processor coupled to the memory and configured to:
receive interference suppression information from a base station;
receive a transmission through at least one component carrier of a plurality of component carriers; and
for each component carrier of the at least one component carrier, determine
whether to perform interference suppression on a particular component carrier, and
a type of interference suppression to perform on the particular component carrier based on a configuration associated with the particular component carrier and the interference suppression information when it is determined to perform interference suppression on the particular component carrier.
25. The apparatus of claim 24 , wherein the at least one processor is configured to determine by
determining whether the UE has allocated processing resources for performing interference suppression on the particular component carrier based on at least one of:
prior processing resources allocated to perform interference suppression,
a number of component carriers in the a plurality of component carriers, or
a priority associated with the particular component carrier and, wherein the at least one processor is further configured to
perform interference suppression on the particular component carrier when it is determined that the UE has the allocated processing resources.
26. The apparatus of claim 24 , wherein the at least one processor is configured to determine by
determining whether the particular component carrier is a primary component carrier or a secondary component carrier, and
the at least one processor is further configured to:
perform interference suppression on the particular component carrier when the particular component carrier is determined to be a secondary component carrier.
27. The apparatus of claim 26 , wherein the at least one processor is further configured to:
refrain from performing interference suppression on the particular component carrier when the particular component carrier is determined to be a primary component carrier; and
process the primary component carrier in accordance with an enhanced inter-cell interference coordination (eICIC).
28. A non-transitory computer-readable medium storing computer executable code at a user equipment (UE), comprising code to:
receive interference suppression information from a base station;
receive a transmission through at least one component carrier of a plurality of component carriers; and
for each component carrier of the at least one component carrier, determine
whether to perform interference suppression on a particular component carrier, and
a type of interference suppression to perform on the particular component carrier based on a configuration associated with the particular component carrier and the interference suppression information when it is determined to perform interference suppression on the particular component carrier.
29. The non-transitory computer-readable medium of claim 28 , wherein the code is further configured to
determine whether the UE has allocated processing resources for performing interference suppression on the particular component carrier based on at least one of:
prior processing resources allocated to perform interference suppression,
a number of component carriers in the a plurality of component carriers, or
a priority associated with the particular component carrier, wherein the code is further configured to
perform interference suppression on the particular component carrier when it is determined that the UE has the allocated processing resources.
30. The non-transitory computer-readable medium of claim 28 , wherein the code is configured to determine by
determining whether the particular component carrier is a primary component carrier or a
secondary component carrier, and
the code is further configured to:
perform interference suppression on the particular component carrier when the particular component carrier is determined to be a secondary component carrier.