Methods and apparatus for successive interference cancellation (SIC)

1. A method, comprising:

receiving symbols from a plurality of user equipment (UE);

identify a target UE and one or more non-target UEs;

decoding code blocks from the symbols received from the non-target UEs to generate decoded bits for each code block;

performing a cyclic redundancy check (CRC) check on the decoded bits for each code block to generate a tag, and wherein the tag for each code block has a first state (0) when the CRC check passes and a second state (1) when the CRC check fails;

re-encoding the decoded bits to generate re-encoded code blocks, and wherein tags associated with the code blocks are attached to the re-encoded code blocks, respectively;

reconstructing symbols from the re-encoded code blocks, and wherein symbols reconstructed from re-encoded code blocks having tag (0) are reconstructed with data and symbols reconstructed from re-encoded code blocks having tag (1) are reconstructed as zero value symbols; and

utilizing the reconstructed symbols to cancel interference on symbols from the target UE.

2. The method of claim 1 , further comprising receiving the symbols in a plurality of uplink transmissions from the plurality of UE, respectively.

3. The method of claim 1 , further comprising determining the code blocks from transport blocks received from the non-target UEs.

4. The method of claim 1 , wherein the operation of utilizing further comprises performing successive interference cancelling to cancel interference from the reconstructed symbols on the symbols from the target UE.

5. The method of claim 1 , wherein the operation of utilizing further comprises generating an inference-canceled signal that is input to an equalizer that removes inter-symbol-interference (ISI) on the symbols from the target UE.

6. An apparatus, comprising:

a receiver that receives symbols from a plurality of user equipment (UE);

a decoder that decodes code blocks from the symbols received from non-target UE to generate decoded bits for each code block, and where the decoder performs a cyclic redundancy check (CRC) check on the decoded bits for each code block to generate a tag, and wherein the tag for each code block has a first state (0) when the CRC check passes and a second state (1) when the CRC check fails;

a re-encoder that re-encodes the decoded bits to generate re-encoded code blocks, and wherein tags associated with the code blocks are attached to the re-encoded code blocks, respectively;

a symbol reconstruction circuit that reconstructs symbols from the re-encoded code blocks, and wherein symbols reconstructed from re-encoded code blocks having tag (0) are reconstructed with data and symbols reconstructed from re-encoded code blocks having tag (1) are reconstructed as zero value symbols; and

a successive interference canceller (SIC) that utilizes the reconstructed symbols to cancel interference on the symbols from a target UE.

7. The apparatus of claim 6 , wherein the receiver receives the symbols in a plurality of uplink transmissions from the plurality of UE, respectively.

8. The apparatus of claim 6 , wherein the decoder obtains the code blocks from transport blocks received in the symbols from the non-target UEs.

9. The apparatus of claim 6 , wherein the successive interference canceller performs successive interference cancelling to cancel interference from the reconstructed symbols on the symbols from the target UE.

10. The apparatus of claim 6 , wherein the successive interference canceller generates an inference-canceled signal that is input to an equalizer that removes inter-symbol-interference (ISI) on the symbols from the target UE.

11. An apparatus, comprising:

means for receiving symbols from a plurality of user equipment (UE);

means for identifying a target UE and one or more non-target UEs;

means for decoding code blocks from the symbols received from the non-target UEs to generate decoded bits for each code block;

means for performing a cyclic redundancy check (CRC) check on the decoded bits for each code block to generate a tag, and wherein the tag for each code block has a first state (0) when the CRC check passes and a second state (1) when the CRC check fails;

means for re-encoding the decoded bits to generate re-encoded code blocks, and wherein tags associated with the code blocks are attached to the re-encoded code blocks, respectively;

means for reconstructing symbols from the re-encoded code blocks, and wherein symbols reconstructed from re-encoded code blocks having tag (0) are reconstructed with data and symbols reconstructed from re-encoded code blocks having tag (1) are reconstructed as zero value symbols; and

means for utilizing the reconstructed symbols to cancel interference on symbols from the target UE.

12. The apparatus of claim 11 , wherein the means for receiving receives the symbols in a plurality of uplink transmissions from the plurality of UE, respectively.

13. The apparatus of claim 11 , wherein the means for decoding determines the code blocks from transport blocks received from the non-target UEs.

14. The apparatus of claim 11 , wherein the means for utilizing performs successive interference cancelling to cancel interference from the reconstructed symbols on the symbols from the target UE.

15. The apparatus of claim 11 , wherein the means for utilizing generates an inference-canceled signal that is input to an equalizer that removes inter-symbol-interference (ISI) on the symbols from the target UE.