Bit replacing for low density parity check encoding

A method for wireless communication, comprising:

• receiving a transmission from a first wireless device at a second wireless device;
• decoding the transmission into a first plurality of vectors each comprising a respective set of bits having a first quantity and a second plurality of vectors each comprising a respective set of bits having the first quantity, wherein each vector of the first plurality and the second plurality is associated with a respective index indicating an order of the first plurality of vectors and the second plurality of vectors with respect to a lifted parity check matrix;
• replacing a first set of bits of a first vector of the first plurality of vectors with a first set of information bits of a fourth vector of the second plurality of vectors, wherein the first set of information bits is associated with the first vector;
• and
• identifying a plurality of information bits of the transmission based at least in part on the replacing.

An apparatus for wireless communication, comprising:

• a processor;
• memory coupled with the processor;
• and
• instructions stored in the memory and executable by the processor to cause the apparatus to:
• generate a first plurality of vectors each comprising a respective set of information bits having a first quantity, wherein each vector of the first plurality is associated with a respective index indicating an order of the first plurality of vectors with respect to a lifted parity check matrix;
• replace a first set of information bits of a first vector of the first plurality of vectors with a first set of parity bits having the first quantity, wherein the first set of parity bits is based at least in part on the first set of information bits;
• encode the first plurality of vectors according to the lifted parity check matrix and the replacing;
• and
• perform, at a first wireless device, a transmission to a second wireless device based at least in part on the encoding.

An apparatus for wireless communication, comprising:

• a processor;
• memory coupled with the processor;
• and
• instructions stored in the memory and executable by the processor to cause the apparatus to:
• receive a transmission from a first wireless device at a second wireless device;
• decode the transmission into a first plurality of vectors each comprising a respective set of bits having a first quantity and a second plurality of vectors each comprising a respective set of bits having the first quantity, wherein each vector of the first plurality and the second plurality is associated with a respective index indicating an order of the first plurality of vectors and the second plurality of vectors with respect to a lifted parity check matrix;
• replace a first set of bits of a first vector of the first plurality of vectors with a first set of information bits of a fourth vector of the second plurality of vectors, wherein the first set of information bits associated with the first vector;
• and
• identify a plurality of information bits of the transmission based at least in part on the replacing.