公开(公告)号：US12074696B2

公开(公告)日：2024-08-27

申请号：US17165835

申请日：2021-02-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Desheng Sun ,  Qiwen Zhong

IPC: H04L1/00

CPC classification number: H04L1/0011 ,  H04L1/0057

Abstract: An embodiment provides a constant bit rate (CBR) service bitstream processing method. In that embodiment, the CBR service bitstream is received; a code block stream is obtained based on the service bitstream. An encoding type of the code block stream is M bit/N bit encoding, M is a positive integer, N is an integer not less than M, the code block stream includes a first-type code block and a second-type code block, the first-type code block includes M service bits, the second-type code block includes L service bits, and L is an integer less than M and not less than 0. The ode block stream is sent. A quantity of service bits carried in the second-type code block may be flexibly adjusted.

公开(公告)号：US12046247B2

公开(公告)日：2024-07-23

申请号：US17702698

申请日：2022-03-23

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Shen Huang ,  Michael Eckert ,  Glenn N. Dickins

IPC: G10L19/005 ,  G10L19/008 ,  G10L19/02 ,  H04L1/00 ,  H04S3/00

CPC classification number: G10L19/005 ,  G10L19/008 ,  G10L19/0212 ,  H04L1/0011 ,  H04L1/0041 ,  H04S3/008 ,  H04S2400/01

Abstract: Systems and methods for providing forward error correction for a multi-channel audio signal are described. Blocks of an audio stream are buffered into a frame. A transformation can be applied that compacts the energy of each block into a plurality of transformed channels. The energy compaction transform may compact the most energy of a block into the first transformed channel and to compact decreasing amounts of energy into each subsequent transformed channel. The transformed frame may be encoded using any suitable codec and transmitted in a packet over a network. Improved forward error correction may be provided by attaching a low bit rate encoding of the first transformed channel to a subsequent packet. To reconstruct a lost packet, the low bit rate encoding of the first channel for the lost packet may be combined with a packet loss concealment version of the other channels, constructed from a previously-received packet.

公开(公告)号：US20240204912A1

公开(公告)日：2024-06-20

申请号：US18395536

申请日：2023-12-23

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： Anders Wesslén ,  Dennis Hui ,  Yufei Blankenship

IPC: H04L1/00 ,  H03M13/09 ,  H03M13/13

CPC classification number: H04L1/0042 ,  H03M13/13 ,  H04L1/0011 ,  H04L1/0058 ,  H04L1/0061 ,  H04L1/0071 ,  H03M13/09

Abstract: Systems and methods are described herein that allow information carrying bits of a transmission block to be placed at higher-reliability positions prior to transmission. An exemplary method includes generating a set of payload bits to be encoded for transmission, wherein the set of payload bits includes at least one known bit, interleaving the set of payload bits to generate an interleaved set of payload bits, wherein the interleaved set includes the at least one known bit in a predetermined position in the interleaved set, providing the interleaved set to a cyclic redundancy check (CRC) encoder to generate CRC-interleaved set of payload bits, wherein the CRC-interleaved set includes the at least one known bit in a predetermined position within the CRC-interleaved set, and encoding the CRC-interleaved set for transmission to a wireless device. Associated network nodes and wireless devices are included.

公开(公告)号：US20230328131A1

公开(公告)日：2023-10-12

申请号：US18152730

申请日：2023-01-10

Applicant: VIASAT, Inc.

Inventor： David LERNER

IPC: H04L67/10 ,  H04B7/185 ,  H04L69/04 ,  H04L67/06 ,  H04L12/18 ,  H03M7/30 ,  H04L67/01 ,  H04L67/56 ,  H04L65/75 ,  H04L67/568 ,  H04L67/5683 ,  H04L47/43 ,  H04L67/2885 ,  H04L49/901 ,  H04L49/9057

CPC classification number: H04L67/10 ,  H04B7/18595 ,  H04L69/04 ,  H04L67/06 ,  H04L12/1881 ,  H03M7/3091 ,  H04L67/01 ,  H04L67/56 ,  H04L65/765 ,  H04L67/568 ,  H04L67/5683 ,  H04L47/43 ,  H04L67/2885 ,  H04L49/901 ,  H04L49/9057 ,  H04L12/18 ,  H04L1/0011

Abstract: Systems and methods are described for avoiding redundant data transfers using delta coding techniques when reliably and opportunistically communicating data to multiple user systems. According to embodiments, user systems track received block sequences for locally stored content blocks. An intermediate server intercepts content requests between user systems and target hosts, and deterministically chucks and fingerprints content data received in response to those requests. A fingerprint of a received content block is communicated to the requesting user system, and the user system determines based on the fingerprint whether the corresponding content block matches a content block that is already locally stored. If so, the user system returns a set of fingerprints representing a sequence of next content blocks that were previously stored after the matching content block. The intermediate server can then send only those content data blocks that are not already locally stored at the user system according to the returned set of fingerprints.

公开(公告)号：US11694698B2

公开(公告)日：2023-07-04

申请号：US17335227

申请日：2021-06-01

Applicant: Cypress Semiconductor Corporation

Inventor： Robert Zopf

IPC: G10L19/005 ,  H04L29/06 ,  H04N19/895 ,  H04N19/60 ,  H04L65/60 ,  H04L1/00 ,  H04S3/00 ,  H04L65/70 ,  H04L65/75 ,  G10L19/008 ,  H04S1/00

CPC classification number: G10L19/005 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0071 ,  H04L65/60 ,  H04L65/70 ,  H04L65/764 ,  H04N19/60 ,  H04N19/895 ,  H04S3/008 ,  G10L19/008 ,  H04L1/0011 ,  H04S1/00

Abstract: In a reliable multi-cast, a concealment scheme may be applied to recover or conceal lost or otherwise corrupted packets of audio information for one channel based on the audio information of other channels in the reliable multi-cast. The concealment scheme may employ correction factors for channels derived from the channel relationships.

公开(公告)号：US20190229836A1

公开(公告)日：2019-07-25

申请号：US16374268

申请日：2019-04-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Alberto Giuseppe PEROTTI

IPC: H04L1/00 ,  H04L1/20 ,  H04L27/34 ,  H04L5/00

CPC classification number: H04L1/0005 ,  H04L1/0006 ,  H04L1/0009 ,  H04L1/0011 ,  H04L1/0016 ,  H04L1/0026 ,  H04L1/206 ,  H04L5/0057 ,  H04L27/3405

Abstract: A network node for a wireless communication system including a processor and a transceiver are provided. The processor is configured to determine that a first channel quality indication for a first user equipment is higher than a second channel quality indication for a second user equipment, determine a first modulation and coding scheme index (IMCS,N) for the first user equipment based on a first set of modulation and coding schemes. The first set of modulation and coding schemes includes a first range of transport block sizes [n0 . . . n1] mapped to a first modulation order Qm=q0, and at least a second range of transport block sizes [n2 . . . n3] mapped to a second modulation order Qm=g1, where q1>q0, and n3>=n1 and n2

公开(公告)号：US20190222385A1

公开(公告)日：2019-07-18

申请号：US16367440

申请日：2019-03-28

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Martin Hessler ,  Mattias Frenne ,  Peter Hammarberg ,  Lars Lindbom ,  Vincent Molés Cases ,  Zhao Wang

IPC: H04L5/00 ,  H04L1/00 ,  H04L27/26 ,  H04W72/12

CPC classification number: H04L5/0048 ,  H04B7/0452 ,  H04B7/10 ,  H04L1/0005 ,  H04L1/0011 ,  H04L1/0027 ,  H04L5/0007 ,  H04L5/0053 ,  H04L5/0094 ,  H04L27/2613 ,  H04L27/2655 ,  H04L27/2657 ,  H04L2027/0026 ,  H04W56/00 ,  H04W72/1268 ,  H04W72/1289

Abstract: A transmitting node for a Radio Access Network, the transmitting node being adapted for transmitting, based on one or more transmission parameters, of reference signaling, and/or signaling including reference signaling, wherein the reference signaling comprises phase tracking reference signaling, and the one or more transmission parameters comprise a Modulation and Coding Scheme, MCS. The disclosure also pertains to related devices and methods.

公开(公告)号：US20190199467A1

公开(公告)日：2019-06-27

申请号：US15852833

申请日：2017-12-22

Applicant: Advanced Micro Devices, Inc.

Inventor： Ngoc Vinh Vu

IPC: H04L1/00 ,  H04N19/85

CPC classification number: H04L1/0003 ,  G06T11/60 ,  H04B7/0617 ,  H04L1/0009 ,  H04L1/0011 ,  H04L1/0017 ,  H04N19/51 ,  H04N19/85

Abstract: Systems, apparatuses, and methods for implementing data recovery techniques for lossy wireless links are disclosed. A transmitter is configured to encode a video stream and wirelessly transmit the encoded video stream to a receiver, with the video stream representing a virtual reality (VR) rendered environment. The transmitter partitions the video stream into a plurality of substream components based on frequency. Motion vector parameters are calculated for the lowest frequency substream component of the video stream only, and the motion vector parameters are sent to the receiver using a low MCS level. When the receiver receives the motion vector parameters, but the receiver does not receive the lowest frequency component of a given chunk, the receiver uses the motion vector parameters to reconstruct the lowest frequency component of the given chunk by extrapolating from a corresponding chunk of the previous video frame.

公开(公告)号：US20180034593A1

公开(公告)日：2018-02-01

申请号：US15643003

申请日：2017-07-06

Applicant: QUALCOMM Incorporated

Inventor： Changlong XU ,  Jian LI ,  Chao WEI ,  Jilei HOU

IPC: H04L1/08 ,  H04L1/20 ,  H04L1/18 ,  H04L1/00

CPC classification number: H04L1/08 ,  H04L1/0011 ,  H04L1/0058 ,  H04L1/0061 ,  H04L1/0079 ,  H04L1/1671 ,  H04L1/1812 ,  H04L1/1896 ,  H04L1/203

Abstract: Certain aspects of the present disclosure relate to techniques and apparatus for design of hybrid automatic repeat request (HARQ) feedback bits. The method generally includes obtaining a payload to be transmitted, partitioning the payload into a plurality of blocks, and partitioning each block of the plurality of blocks into a plurality of sections. The method also includes deriving redundancy check information for each section of the plurality of sections, and generating a plurality of codewords, each comprising a block of the plurality of blocks and the redundancy check information for each section of the block, wherein a location of each of the sections in the codewords is determined based on an error rate corresponding to each of the sections.

公开(公告)号：US09876604B2

公开(公告)日：2018-01-23

申请号：US15135388

申请日：2016-04-21

Applicant: QUALCOMM Incorporated

Inventor： Alecsander Eitan

IPC: H04W4/00 ,  H04L1/00 ,  H04L29/06 ,  H04W74/08 ,  H04W84/12

CPC classification number: H04L1/0011 ,  H04L69/22 ,  H04W74/0816 ,  H04W84/12

Abstract: In certain aspects of the present disclosure, an apparatus for wireless communications comprises a processing system configured to generate a frame comprising first information indicating a plurality of channels to be used by the apparatus for a transmission and second information indicating a time duration of the transmission. The apparatus also comprises an interface configured to output the frame for wireless transmission on at least one of the plurality of channels. In certain aspects of the present disclosure, another apparatus receiving the frame may determine the plurality of channels based on the first information, compute a time duration based on the second information, and avoid transmitting on the plurality of channels for at least the computed time duration (e.g., to avoid collision).