公开(公告)号：US10075941B2

公开(公告)日：2018-09-11

申请号：US15082878

申请日：2016-03-28

Applicant: Neocific, Inc.

Inventor： Xiaodong Li ,  Titus Lo ,  Kemin Li ,  Haiming Huang

IPC: H04B7/00 ,  H04W72/04 ,  H04L5/00 ,  H04L27/26 ,  H04B7/0413 ,  H04L1/00 ,  H04W52/26

CPC classification number: H04W72/0406 ,  H04B7/0413 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/0029 ,  H04L1/0068 ,  H04L1/0073 ,  H04L5/0007 ,  H04L5/0046 ,  H04L5/0048 ,  H04L5/006 ,  H04L5/0091 ,  H04L27/2608 ,  H04W52/26 ,  H04W72/044

Abstract: An arrangement is disclosed where in a multi-carrier communication system, the modulation scheme, coding attributes, training pilots, and signal power may be adjusted to adapt to channel conditions in order to maximize the overall system capacity and spectral efficiency without wasting radio resources or compromising error probability performance, etc.

公开(公告)号：US20180248655A1

公开(公告)日：2018-08-30

申请号：US15875766

申请日：2018-01-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jean-Claude Belfiore ,  Yiqun Ge ,  Gaoning He ,  Ran Zhang ,  Ingmar LAND ,  Wuxian Shi ,  Wen Tong

IPC: H04L1/00

CPC classification number: H04L1/0058 ,  H03M13/033 ,  H03M13/13 ,  H03M13/618 ,  H03M13/6362 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0068

Abstract: A number K of N sub-channels that are defined by a code and that have associated reliabilities for input bits at N input bit positions, are to be selected to carry bits that are to be encoded. A localization area that includes multiple sub-channels and is located below fewer than K of the N sub-channels in a partial order of the N sub-channels is determined based on one or more coding parameters. The fewer than K sub-channels of the N sub-channels above the localization area in the partial order are selected, and a number of sub-channels from those in the localization area are also selected. The selected fewer than K sub-channels and the number of sub-channels selected from those in the localization area together include K sub-channels to carry the bits that are to be encoded.

公开(公告)号：US20180227397A1

公开(公告)日：2018-08-09

申请号：US15943170

申请日：2018-04-02

Applicant: Marvell World Trade Ltd.

Inventor： Sudhir SRINIVASA ,  Hongyuan ZHANG

IPC: H04L29/06 ,  H04L1/06 ,  H04L1/00 ,  H04L5/00 ,  H04L27/00 ,  H04W28/18 ,  H04W84/12

CPC classification number: H04L69/22 ,  H04L1/0056 ,  H04L1/0057 ,  H04L1/0059 ,  H04L1/0068 ,  H04L1/007 ,  H04L1/0625 ,  H04L5/00 ,  H04L27/00 ,  H04L29/0653 ,  H04W28/18 ,  H04W84/12

Abstract: In generating a physical layer (PHY) data unit for transmission via a communication channel, information bits to be included in the PHY data unit are received. A number of padding bits are added to the information bits. The number of padding bits is determined based on respective virtual values of each of one or more encoding parameters. The information bits are parsed to a number of encoders and are encoded, using the number of encoders, to generate coded bits. The coded bits are padded such that padded coded bits correspond to respective true values of each of the one or more encoding parameters. The PHY data unit is generated to include the padded coded bits.

公开(公告)号：US09979580B2

公开(公告)日：2018-05-22

申请号：US15588007

申请日：2017-05-05

Applicant: QUALCOMM Incorporated

Inventor： Fuyun Ling ,  J. Rodney Walton ,  Mark Wallace ,  Ivan Jesus Fernandez Corbaton ,  Naga Bhushan

IPC: H04B7/02 ,  H04L27/26 ,  H04B7/0413

CPC classification number: H04L27/2649 ,  H04B7/0413 ,  H04L1/0009 ,  H04L1/0041 ,  H04L1/005 ,  H04L1/0055 ,  H04L1/0066 ,  H04L1/0068 ,  H04L1/0071 ,  H04L5/0023 ,  H04L5/0044 ,  H04L25/03171 ,  H04L27/2601 ,  H04L27/38

Abstract: Coding techniques for a (e.g., OFDM) communication system capable of transmitting data on a number of “transmission channels” at different information bit rates based on the channels' achieved SNR. A base code is used in combination with common or variable puncturing to achieve different coding rates required by the transmission channels. The data (i.e., information bits) for a data transmission is encoded with the base code, and the coded bits for each channel (or group of channels with the similar transmission capabilities) are punctured to achieve the required coding rate. The coded bits may be interleaved (e.g., to combat fading and remove correlation between coded bits in each modulation symbol) prior to puncturing. The unpunctured coded bits are grouped into non-binary symbols and mapped to modulation symbols (e.g., using Gray mapping). The modulation symbol may be “pre-conditioned” and prior to transmission.

公开(公告)号：US09936053B2

公开(公告)日：2018-04-03

申请号：US15043237

申请日：2016-02-12

Applicant: Marvell World Trade Ltd.

Inventor： Sudhir Srinivasa ,  Hongyuan Zhang

IPC: H04J3/24 ,  H04L29/06 ,  H04L5/00 ,  H04L27/00 ,  H04L1/06 ,  H04W28/18 ,  H04W84/12 ,  H04L1/00

CPC classification number: H04L69/22 ,  H04L1/0056 ,  H04L1/0057 ,  H04L1/0059 ,  H04L1/0068 ,  H04L1/007 ,  H04L1/0625 ,  H04L5/00 ,  H04L27/00 ,  H04L29/0653 ,  H04W28/18 ,  H04W84/12

Abstract: In a method for generating a physical layer (PHY) data unit for transmission via a communication channel, information bits to be included in the PHY data unit are received. A number of padding bits are added to the information bits. The number of padding bits is determined based on respective virtual values of each of one or more encoding parameters. The information bits are parsed to a number of encoders and are encoded, using the number of encoders, to generate coded bits. The coded bits are padded such that padded coded bits correspond to respective true values of each of the one or more encoding parameters. The PHY data unit is generated to include the padded coded bits.

公开(公告)号：US20180062789A1

公开(公告)日：2018-03-01

申请号：US15439697

申请日：2017-02-22

Applicant: NATIONAL CHIAO TUNG UNIVERSITY

Inventor： Hsie-Chia CHANG ,  Chen-Yang LIN

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

CPC classification number: H04L1/0047 ,  H03M13/005 ,  H03M13/258 ,  H03M13/6508 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0066 ,  H04L1/0068

Abstract: A turbo decoder system decodes L-length digital data consisting of a systematic code and 1st and 2nd parity check codes, and includes a trellis controller obtaining the ratio of the bit-number Ep of the 1st/2nd parity check code to the bit-number D of an original systematic code and generating, based on the code rate of the digital data, a trellis control output indicating a target decoding trellis, which is selected by a turbo decoder to perform decoding operations. A zero-patch module patches zeros into the systematic code, and patches, based on the value of Ep/D, one or more zeros into the 1st/2nd parity check code so that parity check bits of the 1st/2nd parity check code and the zero-bit(s) form a periodically depunctured parity check code.

公开(公告)号：US20180034592A1

公开(公告)日：2018-02-01

申请号：US15662138

申请日：2017-07-27

Applicant: ZTE Wistron Telecom AB

Inventor： Aijun CAO ,  Yonghong GAO ,  Jan JOHANSSON

IPC: H04L1/00 ,  H04L5/22

CPC classification number: H04L1/0073 ,  H04L1/0068 ,  H04L1/12 ,  H04L1/1819 ,  H04L5/225 ,  H04W72/0413 ,  H04W72/042

Abstract: A system and method for robust data retransmission is disclosed. In one embodiment, a method performed by a first communication node includes: transmitting a first signal, the first signal comprising a transport block comprising a plurality of coding blocks; receiving a feedback signal, the feedback signal associated with a plurality of groups, each of the groups in the plurality of groups comprising at least one of the coding blocks; and puncturing at each of the groups in accordance with the feedback signal to produce a plurality of punctured groups.

公开(公告)号：US20180026663A1

公开(公告)日：2018-01-25

申请号：US15653048

申请日：2017-07-18

Applicant: MEDIATEK INC.

Inventor： Wei-De WU ,  Chia-Wei TAI ,  Mao-Ching CHIU

IPC: H03M13/00 ,  H03M13/15 ,  H04L1/00 ,  H04B1/04

CPC classification number: H03M13/6362 ,  H03M13/13 ,  H03M13/155 ,  H03M13/618 ,  H04B1/04 ,  H04L1/0058 ,  H04L1/0068

Abstract: Aspects of the disclosure provide polar code rate matching methods. A first method can include determining whether to puncture or shorten a mother polar code according to a mother code rate and/or a rate matched code rate, and selecting K positions in the sequence of N input bits for input of K information bits to a polar encoder according to an offline prepared index list ordered according to the reliabilities of respective synthesized channels. Frozen input bits caused by puncturing or shortening are skipped during the selection. A second method includes generating a mother polar code, rearranging code bits of the mother polar code to form a rearranged sequence that can be stored in a circular buffer, and performing, in a unified way, one of puncturing, shortening, or repetition on the rearranged sequence to obtain a rate matched code.

公开(公告)号：US20180019840A1

公开(公告)日：2018-01-18

申请号：US15388187

申请日：2016-12-22

Applicant: INTEL CORPORATION

Inventor： Artyom Lomayev ,  Iaroslav P. Gagiev ,  Alexander Maltsev ,  Michael Genossar ,  Carlos Cordeiro

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

CPC classification number: H04L1/0058 ,  H03M13/1102 ,  H03M13/616 ,  H04B7/0413 ,  H04B7/0452 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0068

Abstract: Some demonstrative embodiments include apparatus, system and method of communicating a transmission encoded according to a Low-Density Parity-Check (LDPC) code. For example, an apparatus may include logic and circuitry configured to cause a wireless station to encode a plurality of data bits into a plurality of codewords according to an LDPC code having an encoding rate of ⅞ and a codeword length of 1248 bits; and to transmit a transmission over a millimeter Wave (mmWave) frequency band based on the plurality of codewords.

公开(公告)号：US20170353196A1

公开(公告)日：2017-12-07

申请号：US15653016

申请日：2017-07-18

Applicant: LG Electronics Inc.

Inventor： Woo Suk KO ,  Sang Chul MOON

IPC: H03M13/27 ,  H04H20/00 ,  H04H20/71 ,  H04L27/26 ,  H04L25/02 ,  H03M13/11 ,  H04L1/00 ,  H04H40/00 ,  H04L1/08

CPC classification number: H03M13/2792 ,  H03M13/1102 ,  H04H20/00 ,  H04H20/71 ,  H04H40/00 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0065 ,  H04L1/0068 ,  H04L1/0071 ,  H04L1/0072 ,  H04L1/08 ,  H04L25/0204 ,  H04L25/0226 ,  H04L25/0232 ,  H04L27/2613 ,  H04L27/2614 ,  H04L27/2618 ,  H04L27/2626 ,  H04L27/2647

Abstract: The present invention relates to a method of transmitting and a method of receiving signals and corresponding apparatus. One aspect of the present invention relates to an efficient L1 signaling method for an efficient transmitter and an efficient receiver using the efficient L1 signaling method for an efficient cable broadcasting.