Reduced complexity encoders and related systems, methods, and devices

An apparatus, comprising:

• a data storage device to store a first data part of a transmit data frame, the transmit data frame received from one or more higher network layers that are higher than a physical layer, the transmit data frame including the first data part and a second data part, the second data part comprising data bits having known values,
• wherein the data storage device is further to store only a subset of a column of a generator matrix used to generate parity vectors, the subset of the column of the generator matrix having fewer bits than an entirety of the column of the generator matrix;
• and
• a processing circuitry to:
• retrieve the first data part of the transmit data frame from the data storage device;
• and
• determine parity vectors for the transmit data frame independently of the second data part responsive to the first data part.

A method of generating parity vectors, the method comprising:

• dividing, at a physical layer device, a first data part from a transmit data frame, the transmit data frame including at least the first data part and a second data part, the second data part comprising data bits having known values, the transmit data frame received from a network layer higher than a physical layer;
• and
• determining parity vectors for the transmit data frame independently of the second data part based, at least in part, on the first data part,
• wherein determining the parity vectors independently of the second data part includes determining a first parity vector responsive to the first data part and a subset of a column of a generator matrix (G-matrix).

A method of generating parity vectors, the method comprising, comprising:

• dividing, at a physical layer device, a first data part from a transmit data frame, the transmit data frame including at least the first data part and a second data part, the second data part comprising data bits having known values, the transmit data frame received from a network layer higher than a physical layer;
• and
• determining parity vectors for the transmit data frame independently of the second data part based, at least in part, on the first data part,
• wherein determining the parity vectors independently of the second data part includes determining a second parity vector, which includes:
• segmenting a subset of an A-matrix, which is a subset of a parity-check matrix, into sub-matrices, a number of ones per row for each of the sub-matrices being less than or equal to five, a final column of the subset of the A-matrix including only five ones;
• storing only 35 bits per each row for each of the sub-matrices, every 7 bits of the 35 bits per each row indicating a location of one of the ones, if any, in a corresponding row;
• and
• multiplying the subset of the A-matrix by a transpose of the first data part responsive to the 35 bits per each row for each of the sub-matrices.

A communication system, comprising:

• a network interface to communicatively interface with a receiver;
• and
• a physical layer device including a reduced complexity encoder to:
• generate a low density parity-check code (LDPC) frame responsive, at least in part, only to a first data part of a transmit data frame independently from a second data part of the transmit data frame, the transmit data frame received from higher network layers that are higher than a physical layer;
• and
• provide the generated LDPC frame through the network interface to the receiver.

A communication system, comprising:

• a network interface to communicatively interface with a receiver;
• and
• a physical layer device including a reduced complexity encoder to:
• generate a low density parity-check code (LDPC) frame responsive to a first data part of a transmit data frame independently from a second data part of the transmit data frame, the transmit data frame received from higher network layers that are higher than a physical layer;
• and
• provide the LDPC frame through the network interface to the receiver,
• wherein the reduced complexity encoder is to use only subsets of a column of a generator matrix and an A-matrix to determine parity vectors of the LDPC frame.

A communication system, comprising:

• a network interface to communicatively interface with a receiver;
• and
• a physical layer device including a reduced complexity encoder to:
• generate a low density parity-check code (LDPC) frame responsive to a first data part of a transmit data frame independently from a second data part of the transmit data frame, the transmit data frame received from higher network layers that are higher than a physical layer;
• and
• provide the LDPC frame through the network interface to the receiver,
• wherein the reduced complexity encoder is to store data indicating locations of ones of a B-matrix and a subset of an A-matrix, the A-matrix and the B-matrix including subsets of a parity check matrix.