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    Management of message transmission using forward error correction
    1.
    发明授权
    Management of message transmission using forward error correction 有权

    公开(公告)号：US12040895B1

    公开(公告)日：2024-07-16

    申请号：US18069575

    申请日：2022-12-21

    Applicant: ITRON, INC.

    Inventor： Thomas F. Uhling ,  Keith Wayne Barnes ,  Danny Ray Seely

    IPC: H04L1/00

    CPC classification number: H04L1/0045 ,  H04L1/0006 ,  H04L1/0041 ,  H04L1/0048 ,  H04L1/0056 ,  H04L1/0057 ,  H04L1/0059 ,  H04L1/0078

    Abstract: Various embodiments disclosed herein provide techniques for deciding when to use FEC to transmit a message between node devices in a mesh network. In various embodiments, a method includes receiving, by a communication application executing on a first node of a mesh network, a message; determining, by the communication application, a second node in the mesh network to transmit the message to, the second node being a neighbor of the first node; determining, by the communication application based on a history of forward error correction (FEC) and non-FEC transmissions with the second node, that FEC or non-FEC should be used to transmit the message; and transmitting, by the communication application, in response to determining that FEC or non-FEC should be used to transmit the message, the message to the second node using FEC or non-FEC.

    DOWNLINK SIGNALING IN A HIGH EFFICIENCY WIRELESS LOCAL AREA NETWORK (WLAN)
    8.
    发明申请
    DOWNLINK SIGNALING IN A HIGH EFFICIENCY WIRELESS LOCAL AREA NETWORK (WLAN) 审中-公开

    公开(公告)号：US20190245659A1

    公开(公告)日：2019-08-08

    申请号：US16384418

    申请日：2019-04-15

    Applicant: Marvell World Trade Ltd.

    Inventor： Yakun SUN ,  Lei WANG ,  Jinjing JIANG ,  Liwen CHU ,  Hongyuan ZHANG

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

    CPC classification number: H04L5/0007 ,  H04L1/0042 ,  H04L1/0059 ,  H04L5/0044 ,  H04L27/12 ,  H04L27/2613 ,  H04W84/12

    Abstract: A first communication device generates a physical layer (PHY) preamble of a PHY data unit. A signal field of the PHY preamble includes i) a common block of information bits having information for multiple second communication devices and ii) a plurality of user blocks of information bits, each user block having information for a respective one of the multiple second communication devices. The common block includes a frequency resource unit allocation field that defines a plurality of frequency resource units corresponding to a PHY payload of the PHY data unit. The user blocks respectively correspond to frequency resource units defined by the frequency resource unit allocation field. Each user block includes an indication of a modulation and coding scheme (MCS) used in the corresponding frequency resource unit. Each group of two user blocks is encoded as a respective second encoded block to allow the multiple second communication devices to efficiently decode the signal field.

    METHOD FOR TRANSFERRING DATA VIA A DISRUPTED RADIO CHANNEL AND RECEIVING UNIT AND TRANSMITTING UNIT FOR USE IN THE METHOD
    10.
    发明申请
    METHOD FOR TRANSFERRING DATA VIA A DISRUPTED RADIO CHANNEL AND RECEIVING UNIT AND TRANSMITTING UNIT FOR USE IN THE METHOD 审中-公开

    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.

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