Computation of channel state feedback in systems using common interference signal interference cancelation

1. A method of wireless communication, comprising:

determining a channel state feedback value;

determining that a neighboring cell will transmit data by at least one of:

obtaining semi-static resource partitioning information for the neighboring cell;

receiving indication that the neighboring cell is transmitting data from a broadcast signal of the neighboring cell;

determining the neighboring cell is transmitting data based on a cell identifier obtained for the neighboring cell; or

detecting transmission characteristics for the neighboring cell;

canceling interfering reference signals from the neighboring cell; and

generating an adjusted channel state feedback value in response to the determining that the neighbor cell will transmit data, wherein the generating includes adjusting the channel state feedback value based on the interfering reference signals.

2. The method of claim 1 , wherein the determining the neighboring cell will transmit based on the cell identifier comprises:

identifying a power class associated with the cell identifier;

comparing the power class associated with the cell identifier to a serving cell power class; and

identifying, in response to the power class and the serving cell power class being the same class, the neighboring cell as transmitting data.

3. The method of claim 1 , wherein the determining the channel state feedback value occurs after canceling the interfering reference signals from the neighboring cell.

4. A method of wireless communication, comprising:

determining a channel state feedback value;

determining that a neighboring cell will transmit data during a time period by at least one of:

obtaining semi-static resource partitioning information for the neighboring cell;

receiving indication that the neighboring cell is transmitting data from a broadcast signal of the neighboring cell;

determining the neighboring cell is transmitting data based on a cell identifier obtained for the neighboring cell; or

detecting transmission characteristics for the neighboring cell;

generating an adjusted channel state feedback value for the time period, after canceling a second interfering reference signal from a second neighboring cell, in response to the determining that the neighbor cell will transmit data;

determining that the second neighboring cell will transmit data; and

adjusting the channel state feedback value in response to the determining that the second neighboring cell will transmit data.

5. The method of claim 4 , wherein the determining that the second neighboring cell will transmit data includes determining that the second neighboring cell will transmit during the time period, and wherein the adjusting the channel state feedback value in response to the determining that the second neighboring cell will transmit data includes adjusting the channel state feedback value for the time period based on the canceled second interfering reference signal.

6. The method of claim 1 , further comprising:

transmitting the adjusted channel state feedback value to a serving cell.

7. The method of claim 1 , further comprising:

generating a signal quality metric using the adjusted channel state feedback value; and

transmitting the signal quality metric to a serving cell.

8. A user equipment (UE) configured for wireless communication, comprising:

means for determining a channel state feedback value;

means for determining that a neighboring cell will transmit data by at least one of:

obtaining semi-static resource partitioning information for the neighboring cell;

receiving indication that the neighboring cell is transmitting data from a broadcast signal of the neighboring cell;

determining the neighboring cell is transmitting data based on a cell identifier obtained for the neighboring cell; or

detecting transmission characteristics for the neighboring cell;

means for canceling interfering reference signals from the neighboring cell; and

means for generating an adjusted channel state feedback value, based on the interfering reference signals, in response to the determining that the neighboring cell will transmit data.

9. The UE of claim 8 , wherein the means for determining the neighboring cell will transmit based on the cell identifier comprises:

means for identifying a power class associated with the cell identifier;

means for comparing the power class associated with the cell identifier to a serving cell power class; and

means for identifying, in response to the power class and the serving cell power class being the same class, the neighboring cell as transmitting data.

10. The UE of claim 8 , wherein the means for determining the channel state feedback value includes means for determining the channel state feedback value after canceling the interfering reference signals from the neighboring cell.

11. The UE of claim 8 , further comprising:

means for transmitting the adjusted channel state feedback value to a serving cell.

12. The UE of claim 8 , further comprising:

means for generating a signal quality metric using the adjusted channel state feedback value; and

means for transmitting the signal quality metric to a serving cell.

13. A user equipment (UE) configured for wireless communication, comprising:

means for determining a channel state feedback value;

means for determining that a neighboring cell will transmit data during a time period by at least one of:

obtaining semi-static resource partitioning information for the neighboring cell;

receiving indication that the neighboring cell is transmitting data from a broadcast signal of the neighboring cell;

determining the neighboring cell is transmitting data based on a cell identifier obtained for the neighboring cell; or

detecting transmission characteristics for the neighboring cell;

means for generating an adjusted channel state feedback value for the time period after canceling a second interfering reference signal from a second neighboring cell, in response to the determining that the neighbor cell will transmit data;

means for determining that the second neighboring cell will transmit data; and

means for adjusting the channel state feedback value in response to the means for determining that the second neighboring cell will transmit data.

14. The UE of claim 13 , wherein the means for determining that the second neighboring cell will transmit data includes means for determining that the second neighboring cell will transmit during the time period, and wherein the means for adjusting the channel state feedback value in response to the determining that the second neighboring cell will transmit data includes means for adjusting the channel state feedback value for the time period based on the canceled second interfering reference signal.

15. A computer program product for wireless communications in a wireless network stored on a non-transitory computer-readable medium and comprising program code for causing a computer to:

determine a channel state feedback value;

determine that a neighboring cell will transmit data by at least one of:

obtaining semi-static resource partitioning information for the neighboring cell;

receiving and indication that the neighboring cell is transmitting data from a broadcast signal of the neighboring cell;

determining that the neighboring cell is transmitting data based on a cell identifier obtained for the neighboring cell; or

detecting transmission characteristics for the neighboring cell;

cancel interfering reference signals from a neighboring cell; and

generate an adjusted channel state feedback value, based on the interfering reference signals, in response to the determination that the neighboring cell will transmit data.

16. The computer program product of claim 15 , wherein the code for causing a computer to determine the neighboring cell will transmit based on the cell identifier comprises code for causing a computer to:

identify a power class associated with the cell identifier;

compare the power class associated with the cell identifier to a serving cell power class; and

identify, in response to the power class and the serving cell power class being the same class, the neighboring cell as transmitting data.

17. The computer program product of claim 15 , wherein the code for causing a computer to determine the channel state feedback value includes code for causing a computer to determine the channel state feedback value after canceling the interfering reference signals from the neighboring cell.

18. The computer program product of claim 15 , wherein the program code further comprises code for causing a computer to:

transmit the adjusted channel state feedback value to a serving cell.

19. The computer program product of claim 15 , wherein the program code further comprises:

generate a signal quality metric using the adjusted channel state feedback value; and

transmit the signal quality metric to a serving cell.

20. A computer program product for wireless communications in a wireless network stored on a non-transitory computer-readable medium having program code for causing a computer to:

determine a channel state feedback value;

determine that a neighboring cell will transmit data during a time period by at least one of:

obtaining semi-static resource partitioning information for the neighboring cell;

receiving indication that the neighboring cell is transmitting data from a broadcast signal of the neighboring cell;

determining the neighboring cell is transmitting data based on a cell identifier obtained for the neighboring cell; or

detecting transmission characteristics for the neighboring cell;

generate an adjusted channel state feedback value for the time period, after canceling a second interfering reference signal from a second neighboring cell, in response to the determining that the neighbor cell will transmit data;

determine that the second neighboring cell will transmit data; and

adjust the channel state feedback value in response to the determination that the second neighboring cell will transmit data.

21. The computer program product of claim 20 , wherein the code for causing a computer to determine that the second neighboring cell will transmit data includes code for causing a computer to determine that the second neighboring cell will transmit during the time period, and wherein the code for causing a computer to adjust the channel state feedback value in response to the code for causing a computer to determine that the second neighboring cell will transmit data includes code for causing a computer to adjust the channel state feedback value for the time period based on the canceled second interfering reference signal.

22. A user equipment (UE) configured for wireless communication, the UE comprising:

at least one processor; and

a memory coupled to the at least one processor,

wherein the at least one processor is configured to:

determine a channel state feedback value;

determine that a neighboring cell will transmit data by at least one of:

obtaining semi-static resource partitioning information for the neighboring cell;

receiving indication that the neighboring cell is transmitting data from a broadcast signal of the neighboring cell;

determining the neighboring cell is transmitting data based on a cell identifier obtained for the neighboring cell; or

detecting transmission characteristics for the neighboring cell;

cancel interfering reference signals from a neighboring cell; and

generate an adjusted channel state feedback value, based on the interfering reference signals, in response to determining that the neighbor cell will transmit data.

23. The UE of claim 22 , wherein the at least one processor is further configured to determine the neighboring cell will transmit based on the cell identifier by:

identifying a power class associated with the cell identifier;

comparing the power class associated with the cell identifier to a serving cell power class; and

identifying, in response to the power class and the serving cell power class being the same class, the neighboring cell as transmitting data.

24. The UE of claim 22 , wherein the at least one processor is configured to determine the channel state feedback value after canceling the interfering reference signals from the neighboring cell.

25. The UE of claim 22 , wherein the at least one processor is further configured to:

transmit the adjusted channel state feedback value to a serving cell.

26. The UE of claim 22 , wherein the at least one processor is further configured to:

generate a signal quality metric using the adjusted channel state feedback value; and

transmit the signal quality metric to a serving cell.

27. A user equipment (UE) configured for wireless communication, the UE comprising:

at least one processor; and

a memory coupled to the at least one processor,

wherein the at least one processor is configured to:

determine a channel state feedback value;

determine that a neighboring cell will transmit data during a time period by at least one of:

obtaining semi-static resource partitioning information for the neighboring cell;

receiving indication that the neighboring cell is transmitting data from a broadcast signal of the neighboring cell;

determining the neighboring cell is transmitting data based on a cell identifier obtained for the neighboring cell; or

detecting transmission characteristics for the neighboring cell; and

generate an adjusted channel state feedback value for the time period, after canceling a second interfering reference signal from a second neighboring cell, in response to determining that the neighbor cell will transmit data;

determine that the second neighboring cell will transmit data; and

adjust the channel state feedback value in response to the determining that the second neighboring cell will transmit data.

28. The UE of claim 27 , wherein the at least one processor is further configured to:

determine that the second neighboring cell will transmit data during the time period; and

adjust the channel state feedback value for the time period based on the canceled second interfering reference signal.