Precoder resource bundling information for interference cancellation in LTE

A wireless communications user equipment (UE) device, comprising:

• at least one processor, and
• a memory coupled with the processor embodying instructions executable by the processor to cause the processor to:
• identify a neighboring base station scheduled to transmit interfering signals during transmission of a subframe from a serving base station;
• receive a signal from the neighboring base station;
• estimate a channel characteristic for one or more of adjacent physical resource blocks (PRBs) or adjacent subframes of the received signal;
• determine that precoder resource bundling is present when a difference in channel estimates is below a threshold;
• evaluate whether precoder resource bundling is used for the interfering signals based on the determination that precoder resource bundling is present, wherein a number and a location of bundled PRBs of the precoder resource bundling are based at least in part on channel bandwidth;
• modify interference cancellation/interference suppression (IC/IS) operations for the subframe responsive to the evaluating;
• and
• perform the modified IC/IS operations on received symbols from a received signal of the subframe.

An apparatus for wireless communications performed by a user equipment (UE), comprising:

• means for identifying a neighboring base station scheduled to transmit interfering signals during transmission of a subframe from a serving base station;
• means for receiving a signal from the neighboring base station;
• means for estimating a channel characteristic for one or more of adjacent physical resource blocks (PRBs) or adjacent subframes of the received signal;
• means for determining that precoder resource bundling is present when a difference in channel estimates is below a threshold;
• means for evaluating whether precoder resource bundling is used for the interfering signals based on the determination that precoder resource bundling is present, wherein a number and a location of bundled PRBs of the precoder resource bundling are based at least in part on channel bandwidth;
• means for modifying interference cancellation/interference suppression (IC/IS) operations for the subframe responsive to the evaluating;
• and
• means for performing the modified IC/IS operations on received symbols from a received signal of the subframe.

A computer program product for performing wireless communications by a user equipment (UE), the computer program product comprising a non-transitory computer-readable medium storing instructions executable by a processor to:

• identify a neighboring base station scheduled to transmit interfering signals during transmission of a subframe from a serving base station;
• receive a signal from the neighboring base station;
• estimate a channel characteristic for one or more of adjacent physical resource blocks (PRBs) or adjacent subframes of the received signal;
• determine that precoder resource bundling is present when a difference in channel estimates is below a threshold;
• evaluate whether precoder resource bundling is used for the interfering signals based on the determination that precoder resource bundling is present, wherein a number and a location of bundled PRBs of the precoder resource bundling are based at least in part on channel bandwidth;
• modify interference cancellation/interference suppression (IC/IS) operations for the subframe responsive to the evaluating;
• and
• perform the modified IC/IS operations on received symbols from a received signal of the subframe.