Polar multi-layer coding multiple input multiple output scheme

1 . An apparatus for wireless communications at a user equipment (UE), comprising:

one or more memories; and

one or more processors coupled with the one or more memories and configured to cause the UE to:

transmit an indication of a capability of the UE to communicate in accordance with a polar multi-layer coding (MLC) multiple input multiple output (MIMO) communication scheme, wherein the indication of the capability of the UE to communicate in accordance with the polar MLC MIMO communication scheme comprises a sub-block size capability;

receive a configuration for communication in accordance with the polar MLC MIMO communication scheme, wherein the configuration indicates a sub-block size threshold that is based at least in part on the sub-block size capability; and

communicate a message in accordance with the polar MLC MIMO communication scheme based at least in part on a determination that a sub-block size for the message satisfies the sub-block size threshold.

2 . The apparatus of claim 1 , wherein the sub-block size for the message is based at least in part on a code block length associated with the message, a quantity of communication layers associated with the message, a quantity of modulation bits associated with the message, a coding rate associated with the message, or any combination thereof.

3 . The apparatus of claim 1 , wherein:

the configuration indicates a first configuration of a plurality of valid configurations for the polar MLC MIMO communication scheme; and

respective sub-block sizes of the plurality of valid configurations each satisfy the sub-block size threshold.

4 . The apparatus of claim 1 , wherein the configuration indicates a quantity of layers associated with the polar MLC MIMO communication scheme, a modulation and coding scheme, or any combination thereof.

5 . The apparatus of claim 1 , wherein the sub-block size is less than the sub-block size threshold.

6 . The apparatus of claim 1 , wherein the capability of the UE is associated with a UE category to which the UE belongs.

7 . The apparatus of claim 1 , wherein:

the polar MLC MIMO communication scheme comprises constellation-level MLC or layer-level MLC.

8 . An apparatus for wireless communications at a user equipment (UE), comprising:

one or more memories; and

one or more processors coupled with the one or more memories and configured to cause the UE to:

transmit an indication of a capability of the UE to communicate in accordance with a polar multi-layer coding (MLC) multiple input multiple output MIMO) communication scheme, wherein the polar MLC MIMO communication scheme comprises application of a plurality of polar codes to sub-blocks of a message, wherein bit indices of respective polar codes of the plurality of polar codes are associated with different combinations of bit positions associated with a modulation order and layers of a plurality of communication layers of the polar MLC MIMO communication scheme;

receive a configuration for communication in accordance with the polar MLC MIMO communication scheme, wherein the configuration indicates a sub-block size threshold; and

communicate the message in accordance with the polar MLC MIMO communication scheme based at least in part on a determination that a sub-block size for the message satisfies the sub-block size threshold.

9 . An apparatus for wireless communications at a network entity, comprising:

one or more memories; and

one or more processors coupled with the one or more memories and configured to cause the network entity to:

obtain an indication of a capability of a user equipment (UE) to communicate in accordance with a polar multi-layer coding (MLC) multiple input multiple output (MIMO) communication scheme, wherein the indication of the capability of the UE to communicate in accordance with the polar MLC MIMO communication scheme comprises a sub-block size capability;

output a configuration for communication in accordance with the polar MLC MIMO communication scheme, wherein the configuration indicates a sub-block size threshold that is based at least in part on the sub-block size capability; and

communicate a message in accordance with the polar MLC MIMO communication scheme based at least in part on a determination that a sub-block size for the message satisfies the sub-block size threshold.

10 . The apparatus of claim 9 , wherein the sub-block size for the message is based at least in part on a code block length associated with the message, a quantity of communication layers associated with the message, a quantity of modulation bits associated with the message, a coding rate associated with the message, or any combination thereof.

11 . The apparatus of claim 9 , wherein:

the configuration indicates a first configuration of a plurality of valid configurations for the polar MLC MIMO communication scheme; and

respective sub-block sizes of the plurality of valid configurations each satisfy the sub-block size threshold.

12 . The apparatus of claim 9 , wherein the configuration indicates a quantity of layers associated with the polar MLC MIMO communication scheme, a modulation and coding scheme, or any combination thereof.

13 . The apparatus of claim 9 , wherein the sub-block size is less than the sub-block size threshold.

14 . The apparatus of claim 9 , wherein the capability of the UE is associated with a UE category to which the UE belongs.

15 . The apparatus of claim 9 , wherein:

the polar MLC MIMO communication scheme comprises constellation-level MLC or layer-level MLC.

16 . An apparatus for wireless communications at a network entity, comprising:

one or more memories; and

one or more processors coupled with the one or more memories and configured to cause the network entity to:

obtain an indication of a capability of a user equipment (UE) to communicate in accordance with a polar multi-layer coding (MLC) multiple input multiple output (MIMO) communication scheme, wherein the polar MLC MIMO communication scheme comprises application of a plurality of polar codes to sub-blocks of a message, wherein bit indices of respective polar codes of the plurality of polar codes are associated with different combinations of bit positions associated with a modulation order and layers of a plurality of communication layers of the polar MLC MIMO communication scheme:

output a configuration for communication in accordance with the polar MLC MIMO communication scheme, wherein the configuration indicates a sub-block size threshold; and

communicate the message in accordance with the polar MLC MIMO communication scheme based at least in part on a determination that a sub-block size for the message satisfies the sub-block size threshold.

17 . A method for wireless communications at a user equipment (UE), comprising:

transmitting an indication of a capability of the UE to communicate in accordance with a polar multi-layer coding (MLC) multiple input multiple output (MIMO) communication scheme, wherein the indication of the capability of the UE to communicate in accordance with the polar MLC MIMO communication scheme comprises a sub-block size capability;

receiving a configuration for communication in accordance with the polar MLC MIMO communication scheme, wherein the configuration indicates a sub-block size threshold that is based at least in part on the sub-block size capability; and

communicating a message in accordance with the polar MLC MIMO communication scheme based at least in part on a determination that a sub-block size for the message satisfies the sub-block size threshold.

18 . The method of claim 17 , wherein the sub-block size for the message is based at least in part on a code block length associated with the message, a quantity of communication layers associated with the message, a quantity of modulation bits associated with the message, a coding rate associated with the message, or any combination thereof.

19 . The method of claim 17 , wherein:

the configuration indicates a first configuration of a plurality of valid configurations for the polar MLC MIMO communication scheme; and

respective sub-block sizes of the plurality of valid configurations each satisfy the sub-block size threshold.

20 . The method of claim 17 , wherein the configuration indicates a quantity of layers associated with the polar MLC MIMO communication scheme, a modulation and coding scheme, or any combination thereof.

21 . The method of claim 17 , wherein the polar MLC MIMO communication scheme comprises application of a plurality of polar codes to sub-blocks of the message, wherein bit indices of respective polar codes of the plurality of polar codes are associated with different combinations of bit positions associated with a modulation order and layers of a plurality of communication layers of the polar MLC MIMO communication scheme.

22 . A method for wireless communications at a network entity, comprising:

obtaining an indication of a capability of a user equipment (UE) to communicate in accordance with a polar multi-layer coding (MLC) multiple input multiple output (MIMO) communication scheme, wherein the indication of the capability of the UE to communicate in accordance with the polar MLC MIMO communication scheme comprises a sub-block size capability;

outputting a configuration for communication in accordance with the polar MLC MIMO communication scheme, wherein the configuration indicates a sub-block size threshold that is based at least in part on the sub-block size capability; and

communicating a message in accordance with the polar MLC MIMO communication scheme based at least in part on a determination that a sub-block size for the message satisfies the sub-block size threshold.

23 . The method of claim 22 , wherein the sub-block size for the message is based at least in part on a code block length associated with the message, a quantity of communication layers associated with the message, a quantity of modulation bits associated with the message, a coding rate associated with the message, or any combination thereof.

24 . The method of claim 22 , wherein:

the configuration indicates a first configuration of a plurality of valid configurations for the polar MLC MIMO communication scheme; and

respective sub-block sizes of the plurality of valid configurations each satisfy the sub-block size threshold.

25 . The method of claim 22 , wherein the configuration indicates a quantity of layers associated with the polar MLC MIMO communication scheme, a modulation and coding scheme, or any combination thereof.

26 . The method of claim 22 , wherein the polar MLC MIMO communication scheme comprises application of a plurality of polar codes to sub-blocks of the message, wherein bit indices of respective polar codes of the plurality of polar codes are associated with different combinations of bit positions associated with a modulation order and layers of a plurality of communication layers of the polar MLC MIMO communication scheme.