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    Interference cancellation in wireless communication
    1.
    发明授权
    Interference cancellation in wireless communication 失效
    无线通信中的干扰消除

    公开(公告)号：US08493942B2

    公开(公告)日：2013-07-23

    申请号：US11492609

    申请日：2006-07-24

    申请人： Tao Luo ,  Durga Prasad Malladi ,  Sharad Deepak Sambhwani ,  Waleed M. Younis

    发明人： Tao Luo ,  Durga Prasad Malladi ,  Sharad Deepak Sambhwani ,  Waleed M. Younis

    IPC分类号： H04B7/216

    CPC分类号： H04L25/0236 ,  H04B1/7107 ,  H04B2201/70701

    摘要： Techniques for recovering transmissions on data and control channels with interference cancellation are described. A receiver derives a first interference estimate for a first channel based on a first channel estimate and cancels the first interference estimate from an input signal. The receiver thereafter derives a second interference estimate for the first channel based on a second channel estimate and cancels the second interference estimate in place of the first interference estimate from the input signal. The receiver may derive the first channel estimate based on pilot symbols and may derive the second channel estimate based on a correctly decoded packet. The second channel estimate may be of higher quality than the first channel estimate.

    摘要翻译： 描述了用于在具有干扰消除的数据和控制信道上恢复传输的技术。 接收机基于第一信道估计导出第一信道的第一干扰估计，并从输入信号中消除第一干扰估计。 接收机此后基于第二信道估计得出第一信道的第二干扰估计，并且从输入信号中取代第二干扰估计代替第一干扰估计。 接收机可以基于导频符号导出第一信道估计，并且可以基于正确解码的分组导出第二信道估计。 第二信道估计可以具有比第一信道估计更高的质量。

    Transmission and reception of proximity detection signal for peer discovery
    4.
    发明授权
    Transmission and reception of proximity detection signal for peer discovery 有权
    用于对等体发现的接近检测信号的发送和接收

    公开(公告)号：US09485069B2

    公开(公告)日：2016-11-01

    申请号：US13085337

    申请日：2011-04-12

    申请人： Renqiu Wang ,  Siddhartha Mallik ,  Ravi Palanki ,  Naga Bhushan ,  Tao Luo ,  Durga Prasad Malladi

    发明人： Renqiu Wang ,  Siddhartha Mallik ,  Ravi Palanki ,  Naga Bhushan ,  Tao Luo ,  Durga Prasad Malladi

    IPC分类号： H04B7/208 ,  H04L5/00 ,  H04W8/00 ,  H04W56/00 ,  H04W72/00 ,  H04W76/02 ,  H04W92/18

    CPC分类号： H04W8/005 ,  H04L5/0053 ,  H04L67/104 ,  H04W4/02 ,  H04W56/002 ,  H04W56/0025 ,  H04W72/00 ,  H04W72/0453 ,  H04W76/10 ,  H04W92/18

    摘要： Techniques for performing peer discovery to enable peer-to-peer (P2P) communication are disclosed. In an aspect, a proximity detection signal used for peer discovery may be generated based on one or more physical channels and/or signals used in a wireless network. In one design, a user equipment (UE) may generate a proximity detection signal occupying at least one resource block based on a SC-FDMA modulation technique. In another design, the UE may generate a proximity detection signal occupying at least one resource block based on an OFDMA modulation technique. The UE may generate SC-FDMA symbols or OFDMA symbols in different manners for different physical channels. In yet another design, the UE may generate a proximity detection signal including a primary synchronization signal and a secondary synchronization signal. For all designs, the UE may transmit the proximity detection signal to indicate its presence and to enable other UEs to detect the UE.

    摘要翻译： 公开了用于执行对等体发现以实现对等（P2P）通信的技术。 在一方面，可以基于在无线网络中使用的一个或多个物理信道和/或信号来生成用于对等体发现的接近检测信号。 在一种设计中，用户设备（UE）可以基于SC-FDMA调制技术生成占用至少一个资源块的接近检测信号。 在另一种设计中，UE可以基于OFDMA调制技术生成占用至少一个资源块的接近检测信号。 UE可以针对不同的物理信道以不同的方式生成SC-FDMA符号或OFDMA符号。 在又一设计中，UE可以产生包括主同步信号和次同步信号的接近检测信号。 对于所有设计，UE可以发送接近检测信号以指示其存在并使其他UE能够检测UE。

    Determination of network synchronization
    5.
    发明授权
    Determination of network synchronization 有权
    确定网络同步

    公开(公告)号：US09178640B2

    公开(公告)日：2015-11-03

    申请号：US13212829

    申请日：2011-08-18

    申请人： Kapil Bhattad ,  Tao Luo ,  Taesang Yoo ,  Xiaoxia Zhang ,  Xiliang Luo ,  Ke Liu ,  Durga Prasad Malladi

    发明人： Kapil Bhattad ,  Tao Luo ,  Taesang Yoo ,  Xiaoxia Zhang ,  Xiliang Luo ,  Ke Liu ,  Durga Prasad Malladi

    IPC分类号： H04W56/00 ,  H04J11/00 ,  H04B1/707 ,  H04L5/00 ,  H04W28/04 ,  H04W48/16 ,  H04W88/02

    CPC分类号： H04J11/0083 ,  H04B1/70718 ,  H04L5/0007 ,  H04W28/04 ,  H04W48/16 ,  H04W88/02

    摘要： User equipment (UE) associated with synchronous networks operate in a synchronous mode while UEs associated with asynchronous networks operate in an asynchronous mode. When operating in a synchronous mode, a UE can significantly improve performance of synchronization signal detection, data decoding, and tracking loop management by using the interference cancellation (IC) techniques that are not available in an asynchronous mode of operation. Obtaining synchronization indicators and determining the synchronization status of the current network by UE is disclosed. The determination may be based on the synchronization indicator, whether detected through signal detection, signal measurements, signal analysis, or the like.

    摘要翻译： 与同步网络相关联的用户设备（UE）以同步模式工作，而与异步网络相关联的UE以异步模式工作。 当在同步模式下工作时，UE可以通过使用在异步操作模式中不可用的干扰消除（IC）技术来显着提高同步信号检测，数据解码和跟踪环路管理的性能。 公开了获取同步指示符并确定UE当前网络的同步状态。 该确定可以基于通过信号检测，信号测量，信号分析等检测的同步指示器。

    Wireless communication having reduced feedback delay
    6.
    发明授权
    Wireless communication having reduced feedback delay 有权
    无线通信具有减少的反馈延迟

    公开(公告)号：US08942208B2

    公开(公告)日：2015-01-27

    申请号：US12819355

    申请日：2010-06-21

    申请人： Tao Luo ,  Durga Prasad Malladi ,  Xiaoxia Zhang ,  Juan Montojo ,  Sai Yiu Duncan Ho ,  Nathan Edward Tenny

    发明人： Tao Luo ,  Durga Prasad Malladi ,  Xiaoxia Zhang ,  Juan Montojo ,  Sai Yiu Duncan Ho ,  Nathan Edward Tenny

    IPC分类号： H04W4/00 ,  H04L1/18

    CPC分类号： H04L1/1825 ,  H04L1/189

    摘要： Providing for improved error control signaling in wireless communications is disclosed herein. By way of example, multiple transmissions can be conducted for a HARQ process prior to a scheduled feedback signal on the HARQ process, causing a receiving device to combine the multiple transmissions, rather than treat them as separate transmissions. In this manner, multiple transmissions can be employed to increase overall receive energy, without violating maximum transmit power constraints in a wireless communication. Further, these multiple transmissions can be configured based on prevailing signal strength at the receiving device, or based on processing capabilities of the receiving device, providing flexible protocols that can accommodate advanced as well as legacy UEs in wide range of wireless conditions.

    摘要翻译： 本文公开了在无线通信中提供改进的差错控制信令。 作为示例，可以在HARQ过程之前的调度的反馈信号之前对HARQ进程进行多个传输，使得接收设备组合多个传输，而不是将其作为单独的传输。 以这种方式，可以采用多个传输来增加总体接收能量，而不违反无线通信中的最大发射功率约束。 此外，可以基于接收设备处的主要信号强度或基于接收设备的处理能力来配置这些多个传输，从而提供可在宽范围的无线条件下适应高级以及传统UE的灵活协议。

    Robust UE receiver
    7.
    发明授权
    Robust UE receiver 有权
    稳健的UE接收机

    公开(公告)号：US08514721B2

    公开(公告)日：2013-08-20

    申请号：US12816102

    申请日：2010-06-15

    申请人： Tao Luo ,  Durga Prasad Malladi ,  Juan Montojo ,  Nathan Edward Tenny ,  Sai Yiu Duncan Ho

    发明人： Tao Luo ,  Durga Prasad Malladi ,  Juan Montojo ,  Nathan Edward Tenny ,  Sai Yiu Duncan Ho

    IPC分类号： H04L12/26

    CPC分类号： H04L1/1822 ,  H04L1/1835 ,  H04L1/1896

    摘要： Methods, systems, apparatus and computer program products are provided to improve the reliability of data reception. In one provided embodiment, a communication signal is parsed by a communication device to identify repeat request identifiers. The device determines an inter-arrival time of two instances of the same identifier and processes the communication signal based on a comparison between the inter-arrival time and a predetermined time. This Abstract is provided for the sole purpose of complying with the Abstract requirement rules that allow a reader to quickly ascertain the disclosed subject matter. Therefore, it is to be understood that it should not be used to interpret or limit the scope or the meaning of the claims.

    摘要翻译： 提供方法，系统，装置和计算机程序产品以提高数据接收的可靠性。 在一个所提供的实施例中，通信信号由通信设备解析以识别重复请求标识符。 设备确定相同标识符的两个实例的到达之间的时间，并且基于到达之间的时间与预定时间之间的比较来处理通信信号。 本摘要仅用于遵守允许读者快速确定所披露的主题的抽象要求规则。 因此，应当理解，它不应用于解释或限制权利要求书的范围或含义。

    PHYSICAL DOWNLINK SHARED CHANNEL (PDSCH) PROTECTION
    10.
    发明申请
    PHYSICAL DOWNLINK SHARED CHANNEL (PDSCH) PROTECTION 有权
    物理下行共享信道（PDSCH）保护

    公开(公告)号：US20110235601A1

    公开(公告)日：2011-09-29

    申请号：US13071145

    申请日：2011-03-24

    申请人： Taesang Yoo ,  Tao Luo ,  Yongbin Wei ,  Durga Prasad Malladi

    发明人： Taesang Yoo ,  Tao Luo ,  Yongbin Wei ,  Durga Prasad Malladi

    IPC分类号： H04W72/04

    CPC分类号： H04L5/0053 ,  H04L5/0073 ,  H04W72/082

    摘要： According to certain aspects, resource blocks used for physical downlink shared channel (PDSCH) transmissions may be allocated in a manner to manage interference in neighboring cells. According to certain aspects, one or more guard RBs may be utilized when transmitting PDSCH in a first cell an effort to reduce interference by transmissions in a second cell.

    摘要翻译： 根据某些方面，可以以管理相邻小区中的干扰的方式来分配用于物理下行链路共享信道（PDSCH）传输的资源块。 根据某些方面，当在第一小区中发送PDSCH时，可以利用一个或多个保护RB来努力减少第二小区中的传输的干扰。