公开(公告)号：US20240348368A1

公开(公告)日：2024-10-17

申请号：US18755334

申请日：2024-06-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Fedor IVANOV ,  Kangjian QIN ,  Yue ZHOU ,  Rong LI ,  Jun WANG

IPC: H04L1/00

CPC classification number: H04L1/0064 ,  H04L1/0057 ,  H04L1/0061

Abstract: This application provides example concatenated code encoding and decoding methods. In one example method, polar code encoding is performed on a to-be-encoded message bit sequence based on a frozen bit set and a message bit set that are of a first polar code, to obtain a first encoded code word whose length is N_o. The first encoded code word is interleaved to obtain a second encoded code word, and optimized low-density parity-check (LDPC) code encoding is performed on the second encoded code word to obtain a concatenated code word. Interleaving includes both outer interleaving and inner interleaving. The concatenated code word is then outputted.

公开(公告)号：US12057938B2

公开(公告)日：2024-08-06

申请号：US17651087

申请日：2022-02-15

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Jing Sun ,  Kapil Bhattad

IPC: H04L1/00 ,  H04J13/00 ,  H04J13/12 ,  H04L27/26

CPC classification number: H04L1/0064 ,  H04J13/0074 ,  H04J13/12 ,  H04L27/2636

Abstract: Wireless communications systems and methods related user multiplexing with discrete Fourier transform (DFT) precoded frequency interlaces are provided. A first wireless communication device identifies a first block-spreading code from a set of block-spreading codes associated with user multiplexing. The first wireless communication device communicates, with a second wireless communication device using a frequency interlace in a frequency spectrum, a first communication signal including a first block of information symbols spread across a set of resource blocks (RBs) within the frequency interlace based on the first block-spreading code. The first communication signal is generated by block-spreading the first block of information symbols based on the first block-spreading code to produce a first block of spread information symbols, performing a DFT on the first block of spread information symbols, and mapping the first block of spread information symbols to the set of RBs.

公开(公告)号：US20240224268A1

公开(公告)日：2024-07-04

申请号：US18558158

申请日：2022-09-29

Applicant: Intel Corporation

Inventor： Gregory ERMOLAEV ,  Gang XIONG ,  Sergey SOSNIN

IPC: H04W72/1268 ,  H04L1/00 ,  H04W72/0446 ,  H04W72/21

CPC classification number: H04W72/1268 ,  H04L1/0064 ,  H04L1/0071 ,  H04W72/0446 ,  H04W72/21

Abstract: Various embodiments herein provide techniques for uplink transport block transmission over multiple slots, e.g. using bit interleaving and/or rate matching. Other embodiments may be described and claimed.

公开(公告)号：US20240113804A1

公开(公告)日：2024-04-04

申请号：US18527738

申请日：2023-12-04

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： June Chul Roh ,  Pierre Bertrand

IPC: H04L1/00 ,  H03M13/00 ,  H03M13/09 ,  H03M13/15 ,  H03M13/25 ,  H03M13/27 ,  H03M13/29 ,  H04L1/1812 ,  H04L27/26

CPC classification number: H04L1/004 ,  H03M13/09 ,  H03M13/1515 ,  H03M13/258 ,  H03M13/27 ,  H03M13/2792 ,  H03M13/2906 ,  H03M13/2966 ,  H03M13/618 ,  H03M13/635 ,  H03M13/6516 ,  H04L1/0003 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0061 ,  H04L1/0064 ,  H04L1/0066 ,  H04L1/0071 ,  H04L1/1812 ,  H04L27/26 ,  H04L1/0075 ,  H04W84/042

Abstract: A method for performing code block segmentation for wireless transmission using concatenated forward error correction encoding includes receiving a transport block of data for transmission having a transport block size, along with one or more parameters that define a target code rate. A number N of inner code blocks needed to transmit the transport block is determined. A number M—outer code blocks may be calculated based on the number of inner code blocks and on encoding parameters for the outer code blocks. The transport block may then be segmented and encoded according to the calculated encoding parameters.

公开(公告)号：US20230421290A1

公开(公告)日：2023-12-28

申请号：US18462124

申请日：2023-09-06

Applicant: David E. Newman ,  R. Kemp Massengill

Inventor： David E. Newman ,  R. Kemp Massengill

IPC: H04L1/00

CPC classification number: H04L1/0046 ,  H04L1/0064 ,  H04L1/0061

Abstract: Message faults are expected to be an increasing problem in 5G and 6G, due to signal fading at high frequencies, heavy background interference, and high user densities. Retransmissions are expensive in time, power, and the additional background they generate. Prior art includes “soft-combining” among multiple copies, an especially ineffective fault mitigation procedure when SNR is low. Nevertheless, the waveform signals of even badly faulted message elements are rich with information about the correct value. Therefore, procedures are disclosed herein for determining which message elements of a corrupted message, or its associated error-detection code, are faulted, by measuring characteristic parameters of the signal waveform of each message element, and correlating those parameters with the associated error-detection code. In many cases, the corrupted message may be corrected without a retransmission, according to some embodiments.

公开(公告)号：US11838122B2

公开(公告)日：2023-12-05

申请号：US17582976

申请日：2022-01-24

Applicant: Texas Instruments Incorporated

Inventor： June Chul Roh ,  Pierre Bertrand

IPC: H04L1/00 ,  H03M13/09 ,  H03M13/15 ,  H03M13/27 ,  H03M13/29 ,  H03M13/00 ,  H03M13/25 ,  H04L1/1812 ,  H04L27/26 ,  H04W84/04

CPC classification number: H04L1/004 ,  H03M13/09 ,  H03M13/1515 ,  H03M13/258 ,  H03M13/27 ,  H03M13/2792 ,  H03M13/2906 ,  H03M13/2966 ,  H03M13/618 ,  H03M13/635 ,  H03M13/6516 ,  H04L1/0003 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0061 ,  H04L1/0064 ,  H04L1/0066 ,  H04L1/0071 ,  H04L1/1812 ,  H04L27/26 ,  H04L1/0075 ,  H04W84/042

Abstract: A method for performing code block segmentation for wireless transmission using concatenated forward error correction encoding includes receiving a transport block of data for transmission having a transport block size, along with one or more parameters that define a target code rate. A number N of inner code blocks needed to transmit the transport block is determined. A number M—outer code blocks may be calculated based on the number of inner code blocks and on encoding parameters for the outer code blocks. The transport block may then be segmented and encoded according to the calculated encoding parameters.

公开(公告)号：US20190199376A1

公开(公告)日：2019-06-27

申请号：US16284821

申请日：2019-02-25

Applicant: Infineon Technologies AG

Inventor： Dirk Hammerschmidt ,  Friedrich Rasbornig ,  Wolfgang Scheibenzuber ,  Wolfgang Scherr ,  Thomas Zettler

IPC: H03M13/29 ,  H04L1/00 ,  H03M13/35 ,  H03M13/00

CPC classification number: H03M13/2909 ,  G06F11/08 ,  G06F11/10 ,  G06F11/102 ,  H03M13/13 ,  H03M13/136 ,  H03M13/155 ,  H03M13/1555 ,  H03M13/1595 ,  H03M13/29 ,  H03M13/2903 ,  H03M13/2906 ,  H03M13/2942 ,  H03M13/353 ,  H03M13/611 ,  H03M13/6356 ,  H04L1/0041 ,  H04L1/0043 ,  H04L1/0056 ,  H04L1/0057 ,  H04L1/0064 ,  H04L1/0076 ,  H04L1/0077

Abstract: An apparatus (100) for providing an joint error correction code (140) for a combined data frame (254) comprising first data (112) of a first data channel and second data (122) of a second data channel comprises a first error code generator (110) configured to provide, based on a linear code, information on a first error correction code (114a, 114b) using the first data (112). The apparatus further comprises a second error code generator (120) configured to provide, based on the linear code, information on a second error correction code (124) using the second data (122). The apparatus is configured to provide the joint error correction code (140) using the information on the first error correction code (114a, 114b) and the information on the second error correction code (124).

公开(公告)号：US20180227076A1

公开(公告)日：2018-08-09

申请号：US15467369

申请日：2017-03-23

Applicant: Mitsubishi Electric Research Laboratories, Inc.

Inventor： Toshiaki Koike-Akino ,  Ye Wang ,  Stark C. Draper

IPC: H04L1/00 ,  H03M13/27 ,  H03M13/29 ,  H03M13/00

CPC classification number: H03M13/3961 ,  H03M13/09 ,  H03M13/13 ,  H03M13/251 ,  H03M13/27 ,  H03M13/2739 ,  H03M13/2792 ,  H03M13/2906 ,  H03M13/2909 ,  H03M13/2918 ,  H03M13/2927 ,  H03M13/2963 ,  H03M13/353 ,  H03M13/356 ,  H03M13/3753 ,  H03M13/3784 ,  H03M13/458 ,  H03M13/6502 ,  H03M13/6577 ,  H03M13/658 ,  H03M13/6594 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0058 ,  H04L1/0064 ,  H04L1/0071

Abstract: A transmitter for transmitting an encoded codeword over a communication channel includes a source to accept source data, an irregular polar encoder operated by a processor to encode the source data with at least one polar code to produce the encoded codeword, a modulator to modulate the encoded codeword, and a front end to transmit the modulated and encoded codeword over the communication channel. The polar code is specified by a set of regular parameters including one or combination of parameters defining a number of data bits in the codeword, a parameter defining a data index set specifying locations of frozen bits in the encoded codeword, and a parameter defining a number of parity bits in the encoded codeword. The polar code is further specified by a set of irregular parameters including one or combination of parameters defining an irregularity of values of at least one regular parameter of the polar code, a parameter defining an irregularity of permutation of the encoded bits, a parameter defining an irregularity of polarization kernels in the polar code, and a parameter defining an irregularity in selection of de-activated exclusive-or operations on different stages of the polar encoding, and wherein the irregular polar encoder encodes the codeword using the regular and the irregular parameters of the polar code.

公开(公告)号：US20180198559A1

公开(公告)日：2018-07-12

申请号：US15109827

申请日：2016-05-25

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Miguel Lopez ,  Dennis Sundman ,  Leif Wilhelmsson

IPC: H04L1/00

CPC classification number: H04L1/0064 ,  H03M13/09 ,  H03M13/098 ,  H03M13/1102 ,  H03M13/23 ,  H03M13/29 ,  H03M13/2906 ,  H03M13/373 ,  H03M13/3761 ,  H03M13/6516 ,  H04J11/00 ,  H04L1/0013 ,  H04L1/0053 ,  H04L1/0063 ,  H04L1/0065 ,  H04L1/0075 ,  H04L5/0007 ,  H04L27/2607 ,  H04L27/2628 ,  H04W84/12

Abstract: A Transmitting Node (TN) 102 and a method therein for providing enhanced channel coding of a packet transmitted in a communications network 100. The TN applies, to payload data, an outer channel encoder resulting in a plurality of outer code bits. Further the TN applies an inner channel encoder to the plurality of outer code bits. Furthermore, the TN divides resulting code bits of the inner channel encoder into a first group and one or more second groups. Yet further, the TN generates a first set of OFDM symbols carrying at least a part of the first group, and second sets of OFDM symbols carrying at least a part of the one or more second groups. The TN transmits a packet comprising the first set of OFDM symbols followed by the second sets of OFDM symbols, whereby an enhanced channel coding of the transmitted packet is provided.

公开(公告)号：US20180198518A1

公开(公告)日：2018-07-12

申请号：US15874361

申请日：2018-01-18

Applicant: QUALCOMM Incorporated

Inventor： Qiang WU ,  Peter John BLACK

IPC: H04B7/185 ,  H04W72/04 ,  H03M13/09 ,  H04L1/18 ,  H04L1/00 ,  H03M13/29 ,  H03M13/25 ,  H04L5/00

CPC classification number: H04B7/18582 ,  H03M13/09 ,  H03M13/258 ,  H03M13/2906 ,  H04B7/18517 ,  H04B7/18519 ,  H04B7/1858 ,  H04L1/00 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0041 ,  H04L1/0058 ,  H04L1/0064 ,  H04L1/0065 ,  H04L1/18 ,  H04L1/1867 ,  H04L5/0055 ,  H04W72/0446

Abstract: A communication satellite system provides for spectral efficient data transmissions by a gateway to multiple user terminals by way of a satellite. The gateway transmits multiple blocks in a single slot, each block intended for one of the user terminals, where each block is encoded and modulated according to a scheme that may be different for each intended user terminal. Upon re-transmission of a block if that block is lost or received in error, the block may be encoded and modulated according to another scheme that is less spectrally efficient than in the first transmission of the block.