Channel state information decoding

A first network entity for wireless communication, comprising:

• a memory;
• and
• one or more processors coupled to the memory, wherein the first network entity is configured to:
• transmit, to a second network entity, an indication of one or more parameters for decoding channel state information (CSI) that includes a CSI part 1 and a CSI part 2, the CSI part 2 having a length that is based at least in part on a payload of the CSI part 1, wherein the one or more parameters comprise one or more of:
• one or more numbers of nonzero coefficients for precoding matrix indicators associated with CSI reports within the CSI part 1,
• an indication of priorities of elements of the CSI part 2 corresponding to the CSI part 1, or
• a mapping between at least one non-singular subset of parameter values or sizes and CSI part 2 lengths;
• and
• receive, from the second network entity, the payload of the CSI part 1 and a decoded payload of the CSI part 2.

A method of wireless communication performed by a first network entity, comprising:

• receiving, from a user equipment, channel state information (CSI) that includes a CSI part 1 and a CSI part 2, the CSI part 2 having a length that is based at least in part on a payload of the CSI part 1;
• and
• decoding a payload of the CSI part 2 based at least in part on a payload of the CSI part 1 and one or more parameters indicated by a second network entity associated with the first network entity, wherein the one or more parameters comprise one or more of:
• one or more numbers of nonzero coefficients for precoding matrix indicators associated with CSI reports within the CSI part 1,
• an indication of priorities of elements of the CSI part 2 corresponding to the CSI part 1, or
• a mapping between at least one non-singular subset of parameter values or sizes and CSI part 2 lengths;
• and
• providing, to the second network entity, the payload of the CSI part 2 after decoding the payload of the CSI part.

A method of wireless communication performed by a first network entity, comprising:

• transmitting, to a second network entity, an indication of one or more parameters for decoding channel state information (CSI) that includes a CSI part 1 and a CSI part 2, the CSI part 2 having a length that is based at least in part on a payload of the CSI part 1, wherein the one or more parameters comprise one or more of:
• one or more numbers of nonzero coefficients for precoding matrix indicators associated with CSI reports within the CSI part 1,
• an indication of priorities of elements of the CSI part 2 corresponding to the CSI part 1, or
• a mapping between at least one non-singular subset of parameter values or sizes and CSI part 2 lengths;
• and
• receiving, from the second network entity, the payload of the CSI part 1 and a decoded payload of the CSI part 2.