NON-UNIFORM CONSTELLATIONS
    81.
    发明申请

    公开(公告)号:US20200076669A1

    公开(公告)日:2020-03-05

    申请号:US16678536

    申请日:2019-11-08

    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 MAPPING METHOD THEREOF

    公开(公告)号:US20190363734A1

    公开(公告)日:2019-11-28

    申请号:US16538132

    申请日:2019-08-12

    Abstract: A transmitting apparatus is disclosed. The transmitting apparatus includes an encoder to perform channel encoding with respect to bits and generate a codeword, an interleaver to interleave the codeword, and a modulator to map the interleaved codeword onto a non-uniform constellation according to a modulation scheme, and the constellation may include constellation points defined based on various tables according to the modulation scheme.

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