Non-binary low density parity check (NB-LDPC) codes for communication systems

SVS Ranganathan, BZ Shen - US Patent 9,692,451, 2017 - Google Patents
(57) ABSTRACT A communication device (alternatively, device) includes a processor
configured to Support communications with other communication device (s) and to generate …

QC LDPC code rate matching method and device therefor

J Kim, J Shin, B Kim, NOH Kwangseok - US Patent 10,804,933, 2020 - Google Patents
A quasi-cyclic low density parity check (QC LDPC) code rate matching method is disclosed.
According to the rate matching method in the present disclosure, the minimum lifting value …

Method and system for reliable data communications with adaptive multi-dimensional modulations for variable-iteration decoding

T Koike-Akino - US Patent 9,722,633, 2017 - Google Patents
In an advanced adaptive modulation and coding (AMC) scheme, the code rate and the parity-
check matrix (PCM) for low-density parity-check (LDPC) codes are adapted according to …

HARQ for advanced channel codes

C Ye, NB Shah, F Xi, KJL Pan - US Patent 10,790,934, 2020 - Google Patents
A method (2200) and apparatus for transmitting data using low density parity check, LDPC,
encoding and hybrid automatic repeat request-incremental redundancy, HARQ-IR, is …

Method for determining an encoding scheme and symbol mapping

I Marsland, R Balogun, R Gohary… - US Patent …, 2020 - Google Patents
According to embodiments, there is provided a method apparatus for determining an
encoding scheme for transmis sion of encoded data across a communications channel. The …

Techniques for rate matching and interleaving in wireless communications

V Loncke, R Kalavai, Y Cao, T Richardson… - US Patent …, 2020 - Google Patents
Various aspects described herein relate to techniques for rate matching and interleaving in
wireless communications (eg, 5G NR). In an example, a method described herein includes …

Parity check matrix

NE Tunali, RM Rao, RN Mazahreh… - US Patent …, 2015 - Google Patents
An apparatus is disclosed. In this apparatus, at least one coder block has a parity check
matrix. The parity check matrix comprises each element of an H matrix expanded by a …

Method for transmitting a digital signal for a marc system with a plurality of dynamic half-duplex relays, corresponding program product and relay device

A Mohamad, R Visoz, A Berthet - US Patent 10,135,568, 2018 - Google Patents
A relaying method performed by a half-duplex relay for a telecommunications system
includes a reception stage of receiving codewords from sources during N uses of the …

Time shared protograph LDPC decoder

RW Hinton, JD Gunn - US Patent 9,374,107, 2016 - Google Patents
Digital data communications are ubiquitous in today's modern Society. Such communication
can take one or more of a number of different forms. For example, communications may take …

HARQ for advanced channel codes

C Ye, NB Shah, F Xi, KJL Pan - US Patent 11,323,206, 2022 - Google Patents
A method may comprise transmitting a first signal derived from a first subset of a set of LDPC
coded bits and transmitting a second signal derived from a second subset of the set of LDPC …