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    Methods and procedures for polar encoding and decoding with low latency
    41.
    发明授权
    Methods and procedures for polar encoding and decoding with low latency 有权

    公开(公告)号：US11848778B2

    公开(公告)日：2023-12-19

    申请号：US17310249

    申请日：2020-01-29

    Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

    Inventor： Sungkwon Hong ,  Onur Sahin

    IPC: H04L1/00 ,  H03M13/13 ,  H03M13/27

    CPC classification number: H04L1/0072 ,  H03M13/13 ,  H03M13/27 ,  H04L1/0041 ,  H04L1/0046 ,  H04L1/0057 ,  H04L1/0071

    Abstract: A polar code may be initially divided into multiple polar component codes where the features of these component codes, such as the number of component codes and the size of the component codes, are determined based on parameters such as the number of available timing units within a transmission interval, interleaving depth, and decoder capability. For each selected component code, the order of code bit generation and their indexes may be determined. The determined indexes may be assigned into different, unique groups according to the order of code bit generation. An interleaving operation may be configured and then executed according to the determined index grouping. In the transmission phase, the code bits may be transmitted based on the identified order of the bit generation in the component polar codes, such as the determined index grouping.

    HYBRID PHY WITH INTERLEAVED AND NON-INTERLEAVED RS-FEC AND FEC MODE DETERMINATION DURING ADAPTIVE LINK TRAINING PROTOCOL
    45.
    发明公开
    HYBRID PHY WITH INTERLEAVED AND NON-INTERLEAVED RS-FEC AND FEC MODE DETERMINATION DURING ADAPTIVE LINK TRAINING PROTOCOL 审中-公开

    公开(公告)号：US20230388049A1

    公开(公告)日：2023-11-30

    申请号：US18199697

    申请日：2023-05-19

    Applicant: Intel Corporation

    Inventor： Kent Lusted

    IPC: H04L1/00 ,  H03M13/17 ,  H03M13/15

    CPC classification number: H04L1/0061 ,  H04L1/0041 ,  H03M13/17 ,  H04L1/0071 ,  H03M13/1515 ,  H04L1/0045

    Abstract: Apparatus and methods for implementing high-speed Ethernet links using a hybrid PHY (Physical layer) selectively configurable to employ a non-interleaved RS-FEC (Reed Solomon Forward Error Correction) sublayer or an interleaved RS-FEC sublayer. An adaptive link training protocol is used during link training to determine whether to employ the non-interleaved or interleaved RS-FEC during link DATA mode. Training frames are exchanged between link partners including control and status fields used to respectfully request a non-interleaved or interleaved FEC mode and confirm the requested FEC mode is to be used during link DATA mode. The hybrid PHY includes interleaved RS-FEC and non-interleaved RS-FEC sublayers for transmitter and receiver operations. During link training, a determination is made to whether a local receiver is likely to see decision feedback equalizer (DFE) burst errors. If so, the interleaved FEC mode is selected; otherwise the non-interleaved FEC mode is selected or is the default FEC mode. The apparatus and methods may be implemented for 100 GB ASE-CR1 and 100 GB ASE-KR1 Ethernet links and interfaces.

    HYBRID AUTOMATIC REPEAT REQUEST HARQ-BASED COMMUNICATION METHOD AND APPARATUS
    46.
    发明公开
    HYBRID AUTOMATIC REPEAT REQUEST HARQ-BASED COMMUNICATION METHOD AND APPARATUS 审中-公开

    公开(公告)号：US20230336273A1

    公开(公告)日：2023-10-19

    申请号：US18212345

    申请日：2023-06-21

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Bin LI ,  Jiaqi GU ,  Huazi ZHANG ,  Wen TONG

    IPC: H04L1/00 ,  H04L1/1812 ,  H04L1/1822

    CPC classification number: H04L1/0071 ,  H04L1/1812 ,  H04L1/1822

    Abstract: This application discloses a communication method includes: obtaining a plurality of information bits in first transmission; grouping the plurality of information bits into m groups of first information bit sequences K1, . . . , Km; encoding the m groups of first information bit sequences to obtain a first target encoded codeword; sending the first target encoded codeword to a receive end; performing interleaving processing on n groups of first information bit sequences in the m groups of first information bit sequences in tth retransmission if the first transmission fails, to obtain m groups of first bit sequences X1, . . . , Xm; encoding the m groups of first bit sequences to obtain a second target encoded codeword; and sending the second target encoded codeword to the receive end. In this way, in a HARQ-based implementation, interleaving processing is performed on some information bit sequences in a retransmission process.

    Data encoding method and device, storage medium, and processor
    47.
    发明授权
    Data encoding method and device, storage medium, and processor 有权

    公开(公告)号：US11791933B2

    公开(公告)日：2023-10-17

    申请号：US17588056

    申请日：2022-01-28

    Applicant: ZTE Corporation

    Inventor： Liguang Li ,  Jun Xu ,  Jin Xu

    IPC: H04L1/00 ,  H04L1/1812

    CPC classification number: H04L1/0057 ,  H04L1/0013 ,  H04L1/0041 ,  H04L1/0071 ,  H04L1/1819

    Abstract: Provided are a data encoding method and device, a storage medium, and a processor. The method includes: obtaining data to be sent; performing quasi-cyclic low-density parity check (LDPC) encoding on the data to be sent to obtain an LDPC codeword sequence, and interleaving the LDPC codeword sequence to obtain an interleaved LDPC codeword sequence; performing cyclic bit selection on the interleaved LDPC codeword sequence from a starting position to obtain a rate-matched codeword sequence, where the starting position is determined according to a predetermined parameter; and sending the rate-matched codeword sequence. The solution above resolves the problem in the related art of unstable transmission after performing quasi-cyclic LDPC encoding on data to be transmitted, and achieves stable transmission after the quasi-cyclic LDPC encoding.

    METHOD FOR CODING ON TIME SPACE TWO DIMENSIONAL CHANNEL
    50.
    发明公开
    METHOD FOR CODING ON TIME SPACE TWO DIMENSIONAL CHANNEL 审中-公开

    公开(公告)号：US20230318745A1

    公开(公告)日：2023-10-05

    申请号：US18044126

    申请日：2022-06-01

    Applicant: Southeast University

    Inventor： Xiaohu YOU ,  Yongming HUANG ,  Bin SHENG

    IPC: H04L1/06 ,  H04L1/00

    CPC classification number: H04L1/0625 ,  H04L1/0631 ,  H04L1/0071

    Abstract: The present disclosure relates to a method for coding on a time-space two-dimensional channels, in which the data bits to be transmitted are coded from the time-domain and the space-domain, respectively, to form time-space two-dimensional coding. the proposed coding operation in the space-domain and the time-domain can adopt different coding structures, coding rates and modulation constellations; subsequently, the system expresses each coding method with code words, merges the code words to form a space-time two-dimensional codebook, stores the codebook at both ends of the sending terminal and the receiving terminal; next, the sending terminal selects the coding structure according to the code words of the time-domain, and encodes each data stream according to time-domain coding rates, and eventually forms data blocks of an equal length in the time-domain through the rate matching. Then, the system selects different code word serial numbers, rate matching tables and space time slicing modes according to the requirements of different scenarios for transmission rates, latency and code error rate, as well as channel states and size of data blocks to be transmitted; eventually, when a Time Space Concatenated Coding Mode is adopted, the sending terminal firstly performs time-domain coding according to the time-domain slicing mode and the time-domain code words.

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