Hybrid-QRD-SIC and imbalanced MCS system and method for MIMO

1. A method for multiple input, multiple output (MIMO) detection and channel decoding comprising:

decomposing a channel complex gain matrix into a unitary matrix and an upper right hand triangular matrix;

providing a received signal to a complex conjugate transpose of the unitary matrix, thereby creating a plurality of signals;

normalizing a last of the plurality of signals;

channel decoding the normalized last of the plurality of signals, thereby recovering a last codeword signal; encoding the last codeword signal;

utilizing the encoded last codeword signal to recover a second last codeword signal;

and repeating the utilizing until all codeword signals are recovered.

2. The method of claim 1 , wherein a modulation and coding scheme for the received signal is imbalanced between codewords.

3. The method of 2 , wherein decoding order is based on a preconfigured rule.

4. The method of claim 2 , wherein decoding order is associated with resource allocation on a downlink traffic channel.

5. The method of claim 2 , wherein the imbalanced modulation and coding scheme is signaled between an evolved node B and user equipment.

6. The method of claim 5 , wherein the signaling is done on a per user equipment basis.

7. The method of claim 5 , wherein the signaling is done based on modulation and coding scheme levels.

8. The method of claim 2 , wherein a receiver type is signaled to an evolved node B.

9. The method of claim 2 , wherein a user equipment category associated with a receiver type is signaled to an evolved node B.

10. The method of claim 2 , wherein an evolved node B determines receiver type by providing the imbalanced modulation and coding scheme and monitoring acknowledgments and negative acknowledgments from a user equipment.

11. A computer program product encoded on a non-transitory medium, the product comprising computer readable instructions for causing one or more processors to perform operations comprising:

decomposing a channel complex gain matrix into a unitary matrix and an upper right hand triangular matrix;

providing a received signal to a complex conjugate transpose of the unitary matrix, thereby creating a plurality of signals;

normalizing a last of the plurality of signals;

channel decoding the normalized last of the plurality of signals, thereby recovering a last codeword signal; encoding the last codeword signal;

utilizing the encoded last codeword signal to recover a second last codeword signal; and repeating the utilizing until all codeword signals are recovered.

12. The computer program product of claim 11 , wherein a modulation and coding scheme for the received signal is imbalanced between codewords.

13. The computer program product of 12 , wherein decoding order is based on a preconfigured rule.

14. The computer program product of claim 12 , wherein decoding order is associated with resource allocation on a downlink traffic channel.

15. The computer program product of claim 12 , wherein the imbalanced modulation and coding scheme is signaled between an evolved node B and user equipment.

16. The computer program product of claim 15 , wherein the signaling is done on a per user equipment basis.

17. The computer program product of claim 15 , wherein the signaling is done based on modulation and coding scheme levels.

18. The computer program product of claim 12 , wherein a receiver type is signaled to an evolved node B.

19. The computer program product of claim 12 , wherein a user equipment category associated with a receiver type is signaled to an evolved node B.

20. The computer program product of claim 12 , wherein an evolved node B determines receiver type by providing the imbalanced modulation and coding scheme and monitoring acknowledgments and negative acknowledgments from a user equipment.

21. An apparatus, comprising:

one or more processors configured to:

decompose a channel complex gain matrix into a unitary matrix and an upper right hand triangular matrix;

provide a received signal to a complex conjugate transpose of the unitary

matrix, thereby creating a plurality of signals;

normalize a last of the plurality of signals;

channel decoding the normalized last of the plurality of signals, thereby recovering

a last codeword signal; encoding the last codeword signal;

utilize the encoded last codeword signal to recover a second last codeword signal;

and repeat the utilizing until all codeword signals are recovered.

22. The apparatus of claim 21 , wherein a modulation and coding scheme for the received signal is imbalanced between codewords.

23. The apparatus of 22 , wherein decoding order is based on a preconfigured rule.

24. The apparatus of claim 22 , wherein decoding order is associated with resource allocation on a downlink traffic channel.

25. The apparatus of claim 22 , wherein the imbalanced modulation and coding scheme is signaled between an evolved node B and user equipment.

26. The apparatus of claim 25 , wherein the signaling is done on a per user equipment basis.

27. The apparatus of claim 25 , wherein the signaling is done based on modulation and coding scheme levels.

28. The apparatus of claim 22 , wherein a receiver type is signaled to an evolved node B.

29. The apparatus of claim 22 , wherein a user equipment category associated with a receiver type is signaled to an evolved node B.

30. The apparatus of claim 22 , wherein an evolved node B determines receiver type by providing the imbalanced modulation and coding scheme and monitoring acknowledgments and negative acknowledgments from a user equipment.