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    Forward Error Correction (FEC) to Support Successive Interference Cancellation (SIC)
    12.
    发明申请
    Forward Error Correction (FEC) to Support Successive Interference Cancellation (SIC) 有权
    前向纠错（FEC）支持连续干扰消除（SIC）

    公开(公告)号：US20160105256A1

    公开(公告)日：2016-04-14

    申请号：US14970837

    申请日：2015-12-16

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Aaron James Callard ,  Mohammadhadi Baligh

    IPC: H04L1/00 ,  G06F11/10 ,  H03M13/11

    CPC classification number: H04L1/0048 ,  G06F11/10 ,  H03M13/1102 ,  H03M13/1148 ,  H03M13/23 ,  H03M13/27 ,  H03M13/29 ,  H03M13/2909 ,  H03M13/2957 ,  H03M13/356 ,  H03M13/3707 ,  H03M13/3761 ,  H03M13/6525 ,  H04L1/0041 ,  H04L1/0071

    Abstract: Forward Error Correction (FEC) techniques that generate independently decodable resource blocks are beneficial for Successive Interference Cancellation (SIC) demodulation. One FEC technique for generating independently decodable resource blocks includes mapping locally decodable FEC codeblocks into unique resource blocks such that substantially all of the bits of the FEC codeblock are carried within a single resource block. The locally decodable FEC codeblocks can be generated from different FEC encoding modules or from a common FEC encoding module. Another technique for generating independently decodable resource blocks includes encoding a stream of information bits into low-density parity-check (LDPC) codeblocks having high ratios of inward peering parity bits. These high ratios of inward peering parity bits allow substantial portions of each LDPC codeblock to be decoded independently from information carried by other LDPC codeblocks.

    Abstract translation: 产生独立可解码资源块的前向纠错（FEC）技术有利于连续干扰消除（SIC）解调。 用于产生可独立解码的资源块的一种FEC技术包括将本地可解码的FEC码块映射到唯一的资源块中，使得FEC码块的基本上所有位都被携带在单个资源块内。 本地可解码FEC码块可以从不同的FEC编码模块或公共FEC编码模块生成。 用于产生可独立解码的资源块的另一种技术包括将信息比特流编码为具有高比例的向内对等奇偶校验位的低密度奇偶校验（LDPC）码块。 这些高比例的向内对等奇偶校验位允许每个LDPC码块的实质部分被独立于由其他LDPC码块携带的信息解码。

    Higher layer compression with lower layer signaling
    14.
    发明授权
    Higher layer compression with lower layer signaling 有权
    较高层压缩与较低层信令

    公开(公告)号：US09473600B2

    公开(公告)日：2016-10-18

    申请号：US14459105

    申请日：2014-08-13

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Aaron James Callard ,  Peiying Zhu ,  Hang Zhang ,  Petar Djukic ,  Vipul Desai ,  Peter Ashwood-Smith

    IPC: H04J3/16 ,  H04L29/08 ,  H04L12/823 ,  H04L12/24 ,  H04L29/06 ,  H04W24/00 ,  H04L12/801 ,  H04W28/06

    CPC classification number: H04W28/06 ,  H04L41/147 ,  H04L47/14 ,  H04L47/323 ,  H04L67/02 ,  H04L67/2819 ,  H04L69/04 ,  H04L69/168 ,  H04L69/18 ,  H04L69/321 ,  H04L69/322 ,  H04W24/00 ,  H04W28/0289

    Abstract: Methods and devices for reducing traffic over a wireless link through the compression or suppression of high layer packets carrying predictable background data prior to transportation over a wireless link. The methods include intercepting application layer protocol packets carrying the predictable background data. In embodiments where the background data is periodic in nature, the high layer packets may be compressed into low-layer signaling indicators for communication over a low-layer control channel (e.g., an on off keying (OOK) channel). Alternatively, the high layer packets may be suppressed entirely (not transported over the wireless link) when a receiver side daemon is configured to autonomously replicate the periodic background nature according to a projected interval. In other embodiments, compression techniques may be used to reduce overhead attributable to non-periodic background data that is predictable in context.

    Abstract translation: 用于通过在通过无线链路传输之前通过压缩或抑制携带可预测背景数据的高层分组来减少无线链路上的业务的方法和设备。 这些方法包括拦截携带可预测背景数据的应用层协议报文。 在背景数据本质上是周期性的实施例中，高层分组可以被压缩成低层信令指示符，用于通过低层控制信道（例如，断开键控（OOK）信道）进行通信。 或者，当接收器侧守护进程被配置为根据投影的间隔自动复制周期性背景特性时，可以完全抑制高层分组（不通过无线链路传输）。 在其他实施例中，可以使用压缩技术来减少归因于上下文中可预测的非周期性背景数据的开销。

    Systems and methods for pilot signal and control data retransmission
    17.
    发明授权
    Systems and methods for pilot signal and control data retransmission 有权
    导频信号和控制数据重传的系统和方法

    公开(公告)号：US09226196B2

    公开(公告)日：2015-12-29

    申请号：US13679266

    申请日：2012-11-16

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Aaron James Callard ,  Hamidreza Farmanbar

    IPC: H04W28/06 ,  H04L1/18 ,  H04L1/00

    CPC classification number: H04L1/0045 ,  H04L1/0026 ,  H04L1/1819 ,  H04L1/1845 ,  H04L25/0202 ,  H04W28/06 ,  H04W28/065

    Abstract: Historical decoding can be performed in accordance with pilot signal retransmission or control information retransmission to reduce the amount network resources consumed during data recovery. In one example, historical decoding is achieved through retransmitting a sub-set of coded bits carried by an earlier transmission, which are compared with a corresponding portion of the original signal (stored in memory) to obtain improved channel state information (CSI) relating to that earlier transmission. In another example, historical decoding is achieved through communicating parity information related to a sub-set of the coded bits carried by an earlier transmission, which are used in accordance with a data aided CSI technique to obtain the improved CSI relating to that earlier transmission. In yet another example, historical decoding is achieved by re-transmitting control information carried by an earlier transmission.

    Abstract translation: 可以根据导频信号重传或控制信息重传来执行历史解码，以减少在数据恢复期间消耗的网络资源量。 在一个示例中，历史解码通过重传由较早传输携带的编码比特的子集来实现，其与原始信号（存储在存储器中）的对应部分进行比较，以获得改进的信道状态信息 那个早期的传播。 在另一示例中，通过传送与由较早传输携带的编码比特的子集相关的奇偶校验信息来实现历史解码，这是根据数据辅助CSI技术使用的，以获得与该较早传输相关的改进的CSI。 在又一个例子中，历史解码是通过重传由较早传输所携带的控制信息来实现的。

    System and method for forward error correction
    18.
    发明授权
    System and method for forward error correction 有权

    公开(公告)号：US10601545B2

    公开(公告)日：2020-03-24

    申请号：US15890746

    申请日：2018-02-07

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Aaron James Callard ,  Alex Stephenne ,  Mohammadhadi Baligh ,  Kelvin Kar Kin Au

    IPC: H04L1/00 ,  H04L1/18 ,  H04W28/04

    Abstract: A method includes receiving, by a first device from a second device, a plurality of encoded messages on a plurality of transmission time intervals (TTIs), where the plurality of encoded messages are forward error correction (FEC) encoded, and where the FEC spans the plurality of encoded messages and decoding the plurality of encoded messages using FEC. The method also includes determining a plurality of decoding status messages in accordance with decoding the plurality of encoded messages and transmitting, by the first device to the second device, the plurality of decoding status messages less often than once every TTI.

    System and method for power control
    19.
    发明授权
    System and method for power control 有权

    公开(公告)号：US10334535B2

    公开(公告)日：2019-06-25

    申请号：US14679816

    申请日：2015-04-06

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Nimal Gamini Senarath ,  Israfil Bahceci ,  Peiying Zhu ,  Aaron James Callard

    IPC: H04L1/00 ,  H04W52/24 ,  H04W88/02 ,  H04W88/08 ,  H04W52/14 ,  H04W74/00 ,  H04W52/36

    Abstract: A user equipment (UE) may compute uplink power control levels as a function of a downlink signal to noise ratio (SNIR). For example, the UE may determine an uplink transmit power level by summing a full power control (FPC) transmit power level, a product of a first adjustment factor (β) and the downlink SNIR, and a negative of a second adjustment factor (Δ2) when the product of the first adjustment factor (β) and the downlink SNIR is greater than or equal to the second adjustment factor (Δ2). A UE may also compute an uplink power control level as a function of target and/or current interference levels associated with neighboring base stations. A UE may also iteratively reduce a transmit power level until an interference level experienced by a neighboring base station has fallen below a threshold.

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