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    Digital communications system
    1.
    发明授权
    Digital communications system 失效
    数字通信系统

    公开(公告)号：US08457241B2

    公开(公告)日：2013-06-04

    申请号：US11998936

    申请日：2007-12-03

    Applicant: Yutaka Asanuma ,  Shigeo Terabe ,  Kengo Kurose

    Inventor： Yutaka Asanuma ,  Shigeo Terabe ,  Kengo Kurose

    IPC: H04L1/0003

    CPC classification number: H04L1/0046 ,  H04L1/0038 ,  H04L1/0054 ,  H04L1/0059 ,  H04L1/0061 ,  H04L5/0007

    Abstract: In a base station, after CRC is added to transmission data as a detection code, the transmission data is subjected to error-correcting coding using a convolutional code based on tail biting, divided into four frames of P-BCH and transmitted. For this reason, at a mobile station, even if reception (synthesis) is started from any frame of P-BCH represented as (b-1) to (b-4), a cyclic structure of the transmission signal is maintained due to the tail biting and reception data shifted by unit of frame can be obtained. For this reason, at the mobile station, even if a leading frame is unknown, decoding can be executed by one-time error-correcting decoding. A result of the decoding is subjected to CRC detection in four frame timings, the leading frame is detected and the transmission data is restored.

    Abstract translation: 在基站中，在将CRC作为检测码添加到发送数据之后，使用基于尾部咬合的卷积码将发送数据进行纠错编码，分割成4个P-BCH帧并进行发送。 因此，在移动站中，即使从（b-1）〜（b-4）所示的P-BCH的任意帧开始接收（合成），由于发送信号的循环结构 可以获得以帧为单位移动的尾部咬合和接收数据。 因此，在移动站中，即使领先帧未知，也可以通过一次纠错解码来进行解码。 解码的结果在四帧定时中进行CRC检测，检测前导帧并恢复发送数据。

    DATA INVERSION TECHNIQUES
    5.
    发明申请
    DATA INVERSION TECHNIQUES 审中-公开

    公开(公告)号：WO2021150441A1

    公开(公告)日：2021-07-29

    申请号：PCT/US2021/013626

    申请日：2021-01-15

    Applicant: MICRON TECHNOLOGY, INC.

    Inventor： DIETRICH, Stefan ,  HEIN, Thomas ,  JOVANOVIC, Natalija ,  SCHNEIDER, Ronny ,  RICHTER, Michael, Dieter ,  BROX, Martin

    IPC: G11C7/10 ,  G06F3/06 ,  G06F12/02 ,  H04L1/0003

    Abstract: Methods, systems, and devices for data inversion techniques are described to enable a memory device to transmit or receive a multi-symbol signal that includes more than two (2) physical levels. Some portions of some multi-symbol signals may be inverted. A transmitting device may determine to invert one or more data symbols based on one or more parameters. A receiving device may determine that one or more data symbols are inverted and may re-invert the one or more data symbols (e.g., to an original value). When receiving or transmitting a multi-symbol signal, a device may invert or re-invert a data symbol by changing a value of one bit of the data symbol. Additionally or alternatively, a device may invert or re-invert a data symbol of a multi-symbol signal by inverting a physical level of the signal across an axis located between or associated with one or more physical levels.

    LINK ADAPTATION
    7.
    发明申请
    LINK ADAPTATION 审中-公开

    公开(公告)号：WO2023274522A1

    公开(公告)日：2023-01-05

    申请号：PCT/EP2021/068002

    申请日：2021-06-30

    Applicant: NOKIA TECHNOLOGIES OY

    Inventor： MANDELLI, Silvio ,  WEBER, Andreas ,  BARACCA, Paolo ,  MOHAMMADI, Jafar ,  KELA, Kalle Petteri ,  VEIJALAINEN, Teemu Mikael

    IPC: H04L1/00 ,  H04L1/20 ,  H04L1/0003 ,  H04L1/0025 ,  H04L1/0026 ,  H04L1/203

    Abstract: An apparatus, method and computer program is described comprising: generating a channel quality metric offset; summing a channel quality metric and the channel quality metric offset to generate an adjusted channel quality metric of a channel of a mobile communication system; setting a modulation and coding scheme for transmitting data over the channel based, at least in part, on the adjusted channel quality metric; obtaining feedback data relating to the success of data transfer over said channel; compiling a loss/reward function based, at least in part, on said feedback data; and updating a model using the loss/reward function, wherein the model is used in the generation of said channel quality metric offset.

    METHOD AND APPARATUS FOR OPTIMIZED OFDMA SUBCARRIER ALLOCATION
    8.
    发明申请
    METHOD AND APPARATUS FOR OPTIMIZED OFDMA SUBCARRIER ALLOCATION 审中-公开

    公开(公告)号：WO2022031347A1

    公开(公告)日：2022-02-10

    申请号：PCT/US2021/034428

    申请日：2021-05-27

    Applicant: ARRIS ENTERPRISES LLC

    Inventor： STRATER, Jay William ,  NAKANISHI, Gregory Nobutaka ,  LO, Kwoktung Brian

    IPC: H04L5/00 ,  H04L1/0003 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0044 ,  H04L5/0064 ,  H04W28/0278 ,  H04W28/0812 ,  H04W84/12 ,  H04W88/14 ,  H04W88/16

    Abstract: A method of OFDMA sub carrier allocation for stations in a wireless network includes determining a total downlink buffered traffic load for downlink traffic from a gateway device to the stations, and receiving a total uplink buffered traffic load for uplink traffic from the stations to the gateway device. The method further includes determining a first ratio of total downlink buffered traffic load for each station in relation to total downlink buffered traffic load for all stations, determining a second ratio of total uplink buffered traffic load for each station in relation to total uplink buffered traffic load for all stations, performing OFDMA subcarrier allocation for the downlink traffic by assigning available channel bandwidth proportional to the first ratio for each station, and performing OFDMA subcarrier allocation for the uplink traffic by assigning available channel bandwidth proportional to the second ratio for each station.

    METHOD AND DEVICE IN A NODE USED FOR WIRELESS COMMUNICATION
    9.
    发明申请
    METHOD AND DEVICE IN A NODE USED FOR WIRELESS COMMUNICATION 审中-公开

    公开(公告)号：WO2021254364A1

    公开(公告)日：2021-12-23

    申请号：PCT/CN2021/100274

    申请日：2021-06-16

    Applicant: SHANGHAI LANGBO COMMUNICATION TECHNOLOGY COMPANY LIMITED

    Inventor： JIANG, Qi ,  ZHANG, Xiaobo

    IPC: H04L1/00 ,  H04L1/18 ,  H04L5/00 ,  H04W72/00 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0023 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0094

    Abstract: A method and a device in a node used for wireless communications are disclosed in the present disclosure. A node transmits a first signal, a first reference signal and a second reference signal on a first channel; small-scale fading channel parameters experienced by the second reference signal are used to infer small-scale fading channel parameters experienced by the first signal; the first reference signal is associated with at least one antenna port of the second reference signal, a first MCS is used to determine time-domain density of the first reference signal, and the first MCS is different from an MCS employed by the first signal. The present disclosure associates an MCS to which the resource mapping of PTRS refers with an MCS employed by data, making it easier for the base station to acquire the mapping of PTRS in non-scheduling-based uplink transmission, thus enhancing the overall system performance.

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