Method for supporting rate-compatible non-binary LDPC code, and wireless terminal using same
AssigneeLG Electronics Inc.
InventorsKijun Jeon, Sangrim Lee
Life of this patent
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Abstract
A method for supporting a rate-compatible non-binary LDPC code, performed by a wireless device, according to the present embodiment, comprises the steps of: acquiring a kernel part comprising a plurality of first check nodes and a plurality of first variable nodes, the kernel part having a predetermined first code rate applied thereto, and the level of each of the plurality of first variable nodes included in the kernel part being set to 2; and generating, on the basis of the kernel part, a protograph having a second code rate, when a change from the first code rate to the second code rate is required.
Claims10
A method for supporting a rate-compatible nonbinary low density parity check (LDPC) code, by a wireless terminal, comprising:
- obtaining a kernel part including a plurality of first check nodes and a plurality of first variable nodes, wherein a predetermined first code rate is applied to the kernel part, and a degree of each of the plurality of first variable nodes included in the kernel part is set to 2;
- generating a protograph having a second code rate based on the kernel part when the first code rate is changed to the second code rate;
- generating a parity check matrix H based on the protograph having the second code rate;
- performing encoding on an information bit based on the generated parity check matrix H;
- and
- transmitting the encoded information bit to a counterpart device.
A wireless terminal supporting a rate-compatible nonbinary LDPC code, comprising:
- a transceiver configured to transmit and receive radio signals;
- and
- a processor operating in combination with the transceiver,
- wherein the processor is configured to:
- obtain a kernel part including a plurality of first check nodes and a plurality of first variable nodes, wherein a predetermined first code rate is applied to the kernel part, and a degree of each of the plurality of first variable nodes included in the kernel part is set to 2,
- generate a protograph having a second code rate based on the kernel part when the first code rate is changed to the second code rate,
- generate a parity check matrix H based on the protograph having the second code rate,
- perform encoding on an information bit based on the generated parity check matrix H, and
- transmit the encoded information bit to a counterpart device.
Dependencies are inferred from the claim text.