Dynamic switching between common reference signal interference cancellation and resource element puncturing in a co-channel heterogeneous network

An apparatus for wireless communications, comprising:

• means for identifying subframes with interference between transmissions of a serving Node B and one or more non-serving Node Bs, wherein the subframes are identified based on cooperative partitioning of resources between the serving Node B and the one or more non-serving Node Bs;
• means for measuring a parameter related to the interference;
• and
• based on the measured parameter, means for determining to puncture resource elements (REs) of the subframes to reduce the interference, wherein puncturing the REs of the subframes comprises multiplying log-likelihood ratios (LLRs) generated from REs of the subframes that are subject to the interference by a factor.

An apparatus for wireless communications, comprising:

• at least one processor configured to:
• identify subframes with interference between transmissions of a serving Node B and one or more non-serving Node Bs, wherein the subframes are identified based on cooperative partitioning of resources between the serving Node B and the one or more non-serving Node Bs;
• measure a parameter related to the interference;
• and
• based on the measured parameter, determine to puncture resource elements (REs) of the subframes to reduce the interference, wherein puncturing the REs of the subframes comprises multiplying log-likelihood ratios (LLRs) generated from REs of the subframes that are subject to the interference by a factor;
• and
• a memory coupled to the at least one processor.

A computer-program product for wireless communications, the computer-program product comprising:

• a non-transitory computer-readable medium having code, executable by a processor, for:
• identifying subframes with interference between transmissions of a serving Node B and one or more non-serving Node Bs, wherein the subframes are identified based on cooperative partitioning of resources between the serving Node B and the one or more non-serving Node Bs;
• measuring a parameter related to the interference;
• and
• based on the measured, parameter, determining to puncture resource elements (REs) of the subframes or to reduce the interference, wherein puncturing the REs of the subframes comprises multiplying log-likelihood ratios (LLRs) generated from REs of the subframes that are subject to the interference by a factor.