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    NON-UNIFORM CONSTELLATIONS
    64.
    发明公开
    NON-UNIFORM CONSTELLATIONS 审中-公开

    公开(公告)号：US20230421427A1

    公开(公告)日：2023-12-28

    申请号：US18201897

    申请日：2023-05-25

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Belkacem MOUHOUCHE ,  Daniel Ansorregui LOBETE ,  Hong-sil JEONG

    IPC: H04L27/34 ,  H04L1/00

    CPC classification number: H04L27/3483 ,  H04L1/0063 ,  H04L27/3405

    Abstract: A method for generating a non-uniform constellation is provided. The method comprises the step of performing a first process, the first process comprising the steps of: obtaining a first constellation defined by one or more parameter values; and generating a second constellation based on the first constellation using a second process. The second process comprises the steps of: obtaining a set of candidate constellations, wherein the set of candidate constellations comprises the first constellation and one or more modified constellations, wherein each modified constellation is obtained by modifying the parameter values defining the first constellation; determining the performance of each candidate constellation according to a predetermined performance measure; selecting the candidate constellation having the best performance as the second constellation.

    TRANSMITTING APPARATUS AND INTERLEAVING METHOD THEREOF
    68.
    发明申请
    TRANSMITTING APPARATUS AND INTERLEAVING METHOD THEREOF 审中-公开

    公开(公告)号：US20190312599A1

    公开(公告)日：2019-10-10

    申请号：US16446697

    申请日：2019-06-20

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Kyung-joong KIM ,  Se-ho MYUNG ,  Hong-sil JEONG ,  Daniel Ansorregui LOBETE ,  Belkacem MOUHOUCHE

    IPC: H03M13/27 ,  H04L1/00 ,  H03M13/11 ,  H03M13/25 ,  H03M13/00

    Abstract: A transmitting apparatus is provided. The transmitting apparatus includes: an encoder configured to generate a low-density parity check (LDPC) codeword by LDPC encoding of input bits based on a parity check matrix including information word bits and parity bits, the LDPC codeword including a plurality of bit groups each including a plurality of bits; an interleaver configured to interleave the LDPC codeword; and a modulator configured to map the interleaved LDPC codeword onto a modulation symbol, wherein the interleaver is further configured to interleave the LDPC codeword such that a bit included in a predetermined bit group from among the plurality of bit groups constituting the LDPC codeword onto a predetermined bit of the modulation symbol.

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