利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

8 条记录 (耗时 0.024 秒)

    Method and system for error correction in transmitting data using low complexity systematic encoder
    1.
    发明授权
    Method and system for error correction in transmitting data using low complexity systematic encoder 有权

    公开(公告)号：US10404291B2

    公开(公告)日：2019-09-03

    申请号：US15826335

    申请日：2017-11-29

    申请人： Polaran Yazilim Bilisim Danismanlik Ithalat Ihracat Sanayi Ticaret Limited Sirketi

    发明人： Erdal Arikan

    IPC分类号： H04L1/00 ,  H03M13/00 ,  H03M13/05 ,  H03M13/11 ,  H03M13/13

    摘要： A systematic polar encoder with data checks includes a data mapper receiving input data containing information to be polar coded for transmission and generating modified data, and a nonsystematic polar encoder implementing a transform matrix encoding the modified data to produce a codeword x such that, for some sub-sequence of coordinates S, xS=d. For nonsystematic encoding, a transform input u includes first and second parts for words independent of the data, the second part for an inverse puncture word, a third part carrying the modified data, and a non-null part carrying a check word derived from the modified data. A transform output includes a punctured part for a puncture word, a part carrying the data, and a part serving as redundant symbols, with the codeword x related to the transform output by x=zQ where Q is the complement of the punctured part P.

    METHOD AND SYSTEM FOR DECODING DATA USING COMPRESSED CHANNEL OUTPUT INFORMATION
    5.
    发明申请
    METHOD AND SYSTEM FOR DECODING DATA USING COMPRESSED CHANNEL OUTPUT INFORMATION 审中-公开

    公开(公告)号：US20200067528A1

    公开(公告)日：2020-02-27

    申请号：US16114001

    申请日：2018-08-27

    申请人： Polaran Yazilim Bilisim Danismanlik Ithalat Ihracat Sanayi Ticaret Limited Sirketi

    发明人： Erdal Arikan

    IPC分类号： H03M13/13 ,  H03M13/11 ,  G06F11/10 ,  H04L1/00

    摘要： A split decoder apparatus in a communication system provides reliable transfer of a transmitted message from a source to a destination. A channel encoder encodes the transmitted message into a transmitted codeword from a channel code and transmits the transmitted codeword over a channel. The channel produces a channel output in response to the transmitted codeword. In the split decoder apparatus, a decode client receives the channel output and generates a compressed error information, and a decode server receives the compressed error information and generates a compressed error estimate. The decode client receives the compressed error estimate and generates a message estimate. Communication complexity between the decode client and the decode server is reduced. The split decoder apparatus optionally generates a no-errors signal from the channel output, where the decode server is not activated if the no-errors signal indicates that the hard decisions correspond to a valid transmitted codeword.

    Method and system for retransmitting data using systematic polar coding
    7.
    发明授权
    Method and system for retransmitting data using systematic polar coding 有权

    公开(公告)号：US10312948B1

    公开(公告)日：2019-06-04

    申请号：US15967138

    申请日：2018-04-30

    申请人： Polaran Yazilim Bilisim Danismanlik Ithalat Ihracat Sanayi Ticaret Limited Sirketi

    发明人： Erdal Arikan

    IPC分类号： H03M13/00 ,  H04L1/18

    摘要： A hybrid automatic repeat request (HARQ) transmitter in a communications system employing a HARQ process, wherein a primary codeword from an arbitrary forward error correction (FEC) code is sent over a communications channel and negatively acknowledged by a HARQ receiver, includes a polar code retransmission apparatus. A primary codeword buffer stores the primary codeword, and a systematic incremental redundancy (IR) encoder receives a first segment of the primary codeword and encodes the first segment into a first IR codeword. The first segment of the primary codeword excludes at least one symbol of the primary codeword, and the systematic IR encoder comprises a systematic polar encoder. Primary codeword segments, received in response to decoding errors, are encoded into IR codewords, with a kth segment xSk of the primary codeword is excluded from retransmission of the kth IR codeword and the IR codewords may be permuted before transmission.