Single codeword, multi-layer serial interference cancellation (sic) for spatial multiplexing

A device, comprising:

• a processing system including a processor;
• and
• a memory that stores executable instructions that, when executed by the processing system, facilitate performance of operations, comprising:
• associating a first logical codeword based on a first plurality of channel-encoded codewords of a first plurality of transport data blocks, with a hybrid automatic-receive-request (HARQ) process identifier;
• mapping the first logical codeword to a plurality of layers of a multiple-input-multiple-output (MIMO) spatial multiplexing system to obtain a logical codeword mapping, wherein a MIMO signal is wirelessly transmitted to a receiver configured to perform MIMO detection of the MIMO signal and to obtain error detection results for each of the channel-encoded codewords of the first logical codeword;
• and
• in response to a detection of an error in a channel-encoded codeword of the first plurality of channel-encoded codewords of the first logical codeword:
• determining a modified first logical codeword based on the channel-encoded codeword of the first plurality of channel-encoded codewords, wherein the modified first logical codeword is associated with the HARQ process identifier, and wherein the modified first logical codeword is mapped to the plurality of layers of the MIMO spatial multiplexing system for transmission to the receiver for further processing associated with the HARQ process identifier.

A machine-readable storage medium, comprising executable instructions that, when executed by a processing system including a processor, facilitate performance of operations, comprising:

• associating a first logical codeword based on a first plurality of channel-encoded codewords of a first plurality of transport data blocks, with a hybrid automatic-receive-request (HARQ) process identifier;
• associating the first logical codeword with a plurality of layers of a multiple-input-multiple-output (MIMO) spatial multiplexing system to obtain a logical codeword mapping, wherein a MIMO signal is wirelessly transmitted to a receiver configured to perform MIMO detection of the MIMO signal and to obtain independent error detection results for each of the channel-encoded codewords of the first logical codeword;
• and
• in response to the independent error detection results identifying an error in a channel-encoded codeword of the first plurality of channel-encoded codewords of the first logical codeword:
• generating a modified first logical codeword based on the channel-encoded codeword of the first plurality of channel-encoded codewords, wherein the modified first logical codeword is associated with the HARQ process identifier, and wherein the modified first logical codeword is mapped to the plurality of layers of the MIMO spatial multiplexing system for transmission to the receiver for further processing associated with the HARQ process identifier.