公开(公告)号：US20230149802A1

公开(公告)日：2023-05-18

申请号：US18154441

申请日：2023-01-13

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Yi-Pin Eric WANG ,  Magnus ÅSTRÖM ,  Yutao SUI

IPC: A63F13/217 ,  H04L1/08 ,  H04L1/00 ,  H04L5/00 ,  B63B32/70 ,  H04L1/1867 ,  H04W72/0446 ,  A63F13/803

CPC classification number: A63F13/217 ,  H04L1/08 ,  H04L1/00 ,  H04L1/0069 ,  H04L1/0066 ,  H04L5/0044 ,  B63B32/70 ,  H04L1/1874 ,  H04L5/0053 ,  H04W72/0446 ,  A63F13/803 ,  H04W48/12

Abstract: According to certain embodiments, a method performed by a network node comprises transmitting a transmission of system information. The transmission comprises coded bins obtained by reading from a circular buffer. The transmission is transmitted in a first set of subframes corresponding to subframes #4 of a plurality of radio frames. The method further comprises transmitting an additional transmission of the system information. The additional transmission comprises additional coded bits obtained by continuing reading from the circular buffer. The additional transmission is transmitted in a second set of subframes corresponding to subframes of the plurality of radio frames other than subframes #4.

公开(公告)号：US20190207703A1

公开(公告)日：2019-07-04

申请号：US16298560

申请日：2019-03-11

Applicant: Texas Instruments Incorporated

Inventor： June Chul Roh ,  Pierre Bartand

IPC: H04L1/00 ,  H03M13/09 ,  H03M13/15 ,  H04L27/26 ,  H03M13/27 ,  H03M13/29 ,  H04L1/18 ,  H03M13/00

CPC classification number: H04L1/004 ,  H03M13/09 ,  H03M13/1515 ,  H03M13/27 ,  H03M13/2792 ,  H03M13/2906 ,  H03M13/2966 ,  H03M13/618 ,  H03M13/635 ,  H03M13/6516 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0061 ,  H04L1/0064 ,  H04L1/0066 ,  H04L1/0071 ,  H04L1/0075 ,  H04L1/1812 ,  H04L27/26 ,  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：US20190068332A1

公开(公告)日：2019-02-28

申请号：US16082369

申请日：2017-01-11

Applicant: VOLKSWAGEN AKTIENGESELLSCHAFT

Inventor： Thorsten HEHN

IPC: H04L1/18 ,  H04L1/00 ,  H03M13/25

CPC classification number: H04L1/1819 ,  H03M13/258 ,  H04L1/00 ,  H04L1/0054 ,  H04L1/0059 ,  H04L1/0066 ,  H04L1/1864

Abstract: Modern mobile communication systems transfer data by error protection measures including the use of a forward error correction code for the channel coding and a HARQ (hybrid automatic repeat request) system for the repeated transfer of incorrect transport blocks in response to the error protection mechanisms failing. When a turbo code is used as an error protection code, two decoders work on the decoding of the turbo code. Disclosed is an expanded HARQ system wherein the receiving side determines which of the decoders was more greatly challenged in the decoding of the turbo code and reports this to the transmitting side. Instead of uniformly providing more redundancy data to both decoders, more redundancy data are targetedly provided to the more greatly challenged decoder in the expanded HARQ process than in the case of the repetition operation according to the typical HARQ process reducing the latency of the data transfer.

公开(公告)号：US20180317055A1

公开(公告)日：2018-11-01

申请号：US16029981

申请日：2018-07-09

Applicant: Coherent Logix, Incorporated ,  Sinclair Television Group, Inc.

Inventor： Kevin A. Shelby ,  Michael J. Simon

IPC: H04W4/06 ,  H04N21/61 ,  H04L1/18 ,  H04L1/00 ,  H04L1/16 ,  H04H20/72 ,  H04L29/06

CPC classification number: H04W4/06 ,  H04H20/72 ,  H04L1/0003 ,  H04L1/0007 ,  H04L1/0009 ,  H04L1/0017 ,  H04L1/0066 ,  H04L1/1678 ,  H04L1/1877 ,  H04L65/4076 ,  H04L65/4084 ,  H04L65/80 ,  H04L2001/0093 ,  H04N21/6125 ,  H04N21/6131

Abstract: In a next generation broadcast architecture, a broadcast gateway may send segments of a data file to a broadcast transmission system and to a server. The broadcast transmission system wirelessly transmits the segments to a user equipment (UE) device. When the UE device fails to decode a segment, it sends a request for re-transmission of the segment to the server via an IP network. The server re-transmits the requested segment to the UE device via the IP network. Furthermore, the gateway may receive one or more IP data flows (e.g., video streams) having variable bit rate. The gateway may apply dynamically-variable coding to the IP data flows so that the resulting coded IP data flows have an aggregate bit rate that matches a constant physical transport rate of the broadcast transmission system.

公开(公告)号：US20180212627A1

公开(公告)日：2018-07-26

申请号：US15874804

申请日：2018-01-18

Applicant: QUALCOMM Incorporated

Inventor： Seyedkianoush HOSSEINI ,  Alberto RICO ALVARINO ,  Wanshi CHEN

IPC: H03M13/27 ,  H03M13/09 ,  H03M13/29 ,  H03M13/23

CPC classification number: H03M13/2771 ,  H03M13/09 ,  H03M13/091 ,  H03M13/235 ,  H03M13/2942 ,  H03M13/2966 ,  H03M13/35 ,  H03M13/611 ,  H03M13/6306 ,  H03M13/635 ,  H04L1/005 ,  H04L1/0066 ,  H04L1/0067 ,  H04L1/0071 ,  H04L1/1819

Abstract: In an aspect, an apparatus may receive content to be transmitted and generate a first turbo encoded codeword from the content through use of a first turbo encoder. The apparatus maybe further configured to generate an interleaved codeword based on the first turbo encoded codeword through use of an interleaver, generate a second turbo encoded codeword from the interleaved codeword through use of a second turbo encoder, and transmit at least a portion of the second turbo encoded codeword. In an aspect, an apparatus may receive data including outer turbo encoded, interleaved, inner turbo encoded content. The apparatus may generate a first decoded instance of the data, generate a de-interleaved instance of the data based on the first decoded instance of the data, generate a second decoded instance of the data from the de-interleaved instance of the data, and perform a CRC on the second decoded instance of the data.

公开(公告)号：US09893842B2

公开(公告)日：2018-02-13

申请号：US14368371

申请日：2011-12-28

Applicant: Franz Eder ,  Stefan Mueller-Weinfurtner

Inventor： Franz Eder ,  Stefan Mueller-Weinfurtner

IPC: H04L1/00 ,  H04L1/16 ,  H04L1/18

CPC classification number: H04L1/0091 ,  H04L1/0054 ,  H04L1/0057 ,  H04L1/0066 ,  H04L1/0071 ,  H04L1/1671 ,  H04L1/1812 ,  H04L1/1819 ,  H04L1/1845

Abstract: A technique of processing an Automatic Repeat Request (ARQ) transmission is disclosed. As to a method aspect of the technique, the method comprises the steps of requesting a retransmission of a transport block; receiving the retransmission of the transport block; and detecting modulation symbols. The retransmission is requested in response to an error-detecting code indicating an error in the transport block as received in at least one previous transmission. The modulation symbols are detected based on at least a part of the received retransmission and information from the at least one previous transmission. At least in some embodiments, a detection rate is thus improved.

公开(公告)号：US20170373809A1

公开(公告)日：2017-12-28

申请号：US15628265

申请日：2017-06-20

Applicant: LG ELECTRONICS INC.

Inventor： Bonghoe KIM ,  Soocheol KYEONG ,  Kijun KIM ,  Byounghoon KIM ,  Jinwoo KIM ,  Kwangseok NOH ,  Ilmu BYUN ,  Joonkui AHN ,  Seunggye HWANG

IPC: H04L5/00 ,  H03M13/00 ,  H03M13/11 ,  H04L1/00

CPC classification number: H04L5/0044 ,  H03M13/1148 ,  H03M13/296 ,  H03M13/2993 ,  H03M13/6362 ,  H04L1/0058 ,  H04L1/0059 ,  H04L1/0066 ,  H04L1/0067 ,  H04L1/0071 ,  H04L1/1819 ,  H04L5/001 ,  H04L5/0023

Abstract: A method for processing a data block by a user equipment in a wireless communication system comprises generating tail bits of 18 bits by performing trellis termination in a turbo encoder of code rate 1/5 containing a plurality of constituent encoders; and deploying the tail bits of 18 bits to 5 encoded bit sequences of the turbo encoder according to a prescribed rule, wherein 4 tail bits are deployed to a systematic bit sequence among the 5 encoded bit sequences according to the prescribed rule, and 4 tail bits are deployed to each of specific 2 parity bit sequences among 4 parity bit sequences according to the prescribed rule.

公开(公告)号：US20170242747A1

公开(公告)日：2017-08-24

申请号：US15046666

申请日：2016-02-18

Applicant: Micron Technology, Inc.

Inventor： Deping He ,  Sampath K. Ratnam

IPC: G06F11/10 ,  H03M13/11 ,  H03M13/15 ,  G11C29/52

CPC classification number: G06F11/1068 ,  G11C29/52 ,  G11C2029/0411 ,  H03M13/1102 ,  H03M13/13 ,  H03M13/1515 ,  H03M13/152 ,  H03M13/29 ,  H03M13/2936 ,  H03M13/2966 ,  H03M13/356 ,  H03M13/6356 ,  H04L1/0057 ,  H04L1/0066 ,  H04L1/007 ,  H04L2001/0098

Abstract: The present disclosure includes apparatuses and methods for error rate reduction. One example method comprises adding an amount of error rate reduction (ERR) data to an amount of received user data, and writing the amount of user data along with the amount of ERR data to a memory.

公开(公告)号：US20170230139A1

公开(公告)日：2017-08-10

申请号：US15438439

申请日：2017-02-21

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sung-Hee HWANG ,  Kyung-Mo PARK ,  Sung-Ryeul RHYU ,  Hyun-Koo YANG ,  Sung-Oh HWANG

IPC: H04L1/00 ,  H04N19/89

CPC classification number: H04L1/0041 ,  H03M13/1102 ,  H03M13/1515 ,  H03M13/2906 ,  H03M13/35 ,  H03M13/3761 ,  H03M13/618 ,  H03M13/6356 ,  H03M13/6362 ,  H04L1/0017 ,  H04L1/0066 ,  H04L1/007 ,  H04L1/0075 ,  H04L1/008 ,  H04L1/0083 ,  H04N19/30 ,  H04N19/89

Abstract: The present invention relates to a device and method for transmitting/receiving a packet in a communication system. The present invention includes: the processes of determining at least one MPEG media transport (MMT) asset protected by an application layer forward error correction (AL-FEC); determining at least one FEC flow for transmitting the at least one MMT asset; determining the MMT asset transmitted from the at least one FEC flow in each case and determining an FEC coding structure to apply to the at least one FEC flow; producing at least one source flow by dividing the MMT asset transmitted from the at least one FEC flow on a transmission unit basis; and producing and transmitting at least one parity flow by performing AL-FEC encoding on the at least one source flow according to the FEC coding structure.

公开(公告)号：US09647733B2

公开(公告)日：2017-05-09

申请号：US14885787

申请日：2015-10-16

Applicant: QUALCOMM Incorporated

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

IPC: H04B7/02 ,  H04B7/0417 ,  H04B7/06 ,  H04L1/00 ,  H04L27/34 ,  H04L25/03 ,  H04L5/00

CPC classification number: H04B7/0417 ,  H04B7/0632 ,  H04L1/0009 ,  H04L1/0041 ,  H04L1/005 ,  H04L1/0055 ,  H04L1/0066 ,  H04L1/0068 ,  H04L1/0071 ,  H04L5/0023 ,  H04L5/0046 ,  H04L5/0048 ,  H04L5/006 ,  H04L25/03171 ,  H04L27/3488

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.