US Patent Application 18327765. METHODS AND APPARATUS FOR COMPACTLY DESCRIBING LIFTED LOW-DENSITY PARITY-CHECK (LDPC) CODES simplified abstract

METHODS AND APPARATUS FOR COMPACTLY DESCRIBING LIFTED LOW-DENSITY PARITY-CHECK (LDPC) CODES

Inventors

Shrinivas KUDEKAR of Roswell GA (US)

Thomas Joseph RICHARDSON of South Orange NJ (US)

METHODS AND APPARATUS FOR COMPACTLY DESCRIBING LIFTED LOW-DENSITY PARITY-CHECK (LDPC) CODES - A simplified explanation of the abstract

• This abstract for appeared for patent application number 18327765 Titled 'METHODS AND APPARATUS FOR COMPACTLY DESCRIBING LIFTED LOW-DENSITY PARITY-CHECK (LDPC) CODES'

Simplified Explanation

The abstract describes a method for efficiently describing lifted low-density parity-check (LDPC) codes. These codes are used for error correction in data transmission. The method involves selecting lifting size values and lifting values, generating lifted LDPC codes by applying these values to a parity check matrix, determining additional lifting values for different lifting size values, encoding information bits using the lifted LDPC codes, and transmitting the resulting code word.

Original Abstract Submitted

Certain aspects of the present disclosure generally relate to techniques for compactly describing lifted low-density parity-check (LDPC) codes. A method by a transmitting device generally includes selecting a first lifting size value and a first set of lifting values; generating a first lifted LDPC code by applying the first set of lifting values to interconnect edges in copies of a parity check matrix (PCM) having a first number of variable nodes and a second number of check nodes; determining a second set of lifting values for generating a second lifted LDPC code for a second lifting size value based on the first lifted PCM and the first set of lifting values; encoding a set of information bits based the first lifted LDPC code or the second lifted LDPC code to produce a code word; and transmitting the code word.