公开(公告)号：US10439786B2

公开(公告)日：2019-10-08

申请号：US13023311

申请日：2011-02-08

申请人： Tao Luo ,  Wanshi Chen ,  Juan Montojo

发明人： Tao Luo ,  Wanshi Chen ,  Juan Montojo

IPC分类号： H04W72/14 ,  H04L29/08 ,  H04L27/00 ,  H04W72/04 ,  H04L5/00 ,  H04L1/00

摘要： In a method of wireless communication, a UE receives a configuration to receive a CIF for a serving cell of a plurality of serving cells. In addition, the UE monitors a PDCCH on a primary cell of the plurality of serving cells. Said primary cell is different than said serving cell. Furthermore, the UE assumes information received in the PDCCH is for said primary cell when the received information has a common payload size and is in a common search space with a first CCE index in the common search space being equal to a first CCE index in a UE specific search space.

公开(公告)号：US10389479B2

公开(公告)日：2019-08-20

申请号：US13016837

申请日：2011-01-28

申请人： Taesang Yoo ,  Siddhartha Mallik ,  Tao Luo

发明人： Taesang Yoo ,  Siddhartha Mallik ,  Tao Luo

IPC分类号： H04W4/00 ,  H04W72/04 ,  H04L1/00 ,  H04L1/18

摘要： Certain aspects of the present disclosure provide for signaling to expanded capability UEs that may limit the interruption of legacy UEs. According to certain aspects, a base station (e.g., an eNB) may generate and transmit one or more signals containing information that is recognizable by at least one expanded capability UE and identified as invalid by at least one legacy UE. An expanded capability UE may receive such signaling and identifying supplemental information in the signaling, while a legacy UE may regard the signaling as invalid.

公开(公告)号：US09674802B2

公开(公告)日：2017-06-06

申请号：US13214602

申请日：2011-08-22

申请人： Tao Luo ,  Peter Gaal ,  Ke Liu ,  Arun Kannu

发明人： Tao Luo ,  Peter Gaal ,  Ke Liu ,  Arun Kannu

IPC分类号： H04J11/00 ,  H04W56/00 ,  H04L27/26 ,  H04J13/00 ,  H04L5/00

CPC分类号： H04W56/001 ,  H04J11/0069 ,  H04J11/0073 ,  H04J11/0076 ,  H04J13/0003 ,  H04J13/10 ,  H04J2011/0096 ,  H04J2013/0096 ,  H04L5/0053 ,  H04L27/2613 ,  H04L27/2626

摘要： Providing for secondary synchronization encoding utilizing a primary synchronization channel (P-SCH)-related scrambling code is described herein. Scrambled secondary synchronization codes (SSCs) can be assigned to multiple base stations of a radio access network (RAN). By way of example, PSC-based scrambling codes can be created from a plurality of M-sequences generated from a common polynomial expression. Further, an SSC codebook is provided that selects sequence pairs of a sequence matrix for generating SSCs. Selection can be based on transmission characteristics of resulting SSCs, providing reduced interference in planned, semi-planned and/or unplanned mobile deployments.

公开(公告)号：US09544776B2

公开(公告)日：2017-01-10

申请号：US12409963

申请日：2009-03-24

申请人： Tao Luo ,  Juan Montojo ,  Peter Gaal ,  Sandip Sarkar

发明人： Tao Luo ,  Juan Montojo ,  Peter Gaal ,  Sandip Sarkar

IPC分类号： H04W16/02 ,  H04J11/00 ,  H04L5/00 ,  H04W48/12

CPC分类号： H04W16/02 ,  H04J11/0069 ,  H04L5/0007 ,  H04L5/0048 ,  H04L5/0058 ,  H04W48/12

摘要： Providing a coding scheme for wireless communication downlink reference signals is described herein. By way of example, a dedicated reference signal is mapped to resources of a wireless channel as a function of an identifier (ID) of a cell in which the reference signal is transmitted. The function can be similar to mapping functions employed for common reference signals, or can be distinct from such functions. As one example of the latter, a dedicated reference signal mapping function can be shifted in time or frequency with respect to the common reference signal mapping function. By employing a mapping function based on cell ID, noise caused by concurrent transmission of reference signals can be mitigated in a manner readily determined by terminals in a wireless network.

摘要翻译： 本文描述了提供无线通信下行链路参考信号的编码方案。 作为示例，专用参考信号被映射到作为发送参考信号的小区的标识符（ID）的函数的无线信道的资源。 该功能可以类似于用于公共参考信号的映射函数，或者可以与这些功能不同。 作为后者的一个例子，相对于公共参考信号映射函数，专用参考信号映射函数可以在时间或频率上移位。 通过采用基于小区ID的映射功能，可以以无线网络中的终端容易确定的方式来减轻由参考信号的并发传输引起的噪声。

公开(公告)号：US09503285B2

公开(公告)日：2016-11-22

申请号：US13195711

申请日：2011-08-01

申请人： Taesang Yoo ,  Tao Luo

发明人： Taesang Yoo ,  Tao Luo

IPC分类号： H04W52/02 ,  H04L25/02 ,  H04J11/00

CPC分类号： H04L25/0204 ,  H04J11/005 ,  H04L25/0224 ,  H04W52/02 ,  Y02D70/00 ,  Y02D70/1222 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146

摘要： Various aspects disclosed are directed to improvements to channel estimation through more efficient cancelation of neighboring common reference signals (CRS). Cancelation of CRS from other cells allows the user equipment (UE) a better opportunity for accurately detecting the reference signal of the current cell. Alternative aspects have a recursive element that uses previous estimates as the basis for the current channel estimate. The various aspects of the present disclosure generally have two alternative embodiments: (1) initializing the channel estimation for all cells with a previous channel estimate and cancellation of reference signals of non-target cells to accurately update channel estimate of the target cell; and (2) initializing the channel estimate for all cells with a previous channel estimate and cancelation of reference signals of all cells to accurately estimate residual channel estimate of the target cell and update its channel estimate.

摘要翻译： 所公开的各个方面旨在通过更有效地消除相邻公共参考信号（CRS）来改进信道估计。 从其他小区中取消CRS允许用户设备（UE）更准确地检测当前小区的参考信号。 替代方面具有使用先前估计作为当前信道估计的基础的递归因子。 本公开的各个方面通常具有两个替代实施例：（1）利用先前的信道估计和非目标小区的参考信号的消除来初始化所有小区的信道估计，以准确地更新目标小区的信道估计; 和（2）利用先前的信道估计和所有小区的参考信号的消除来初始化所有小区的信道估计，以精确估计目标小区的剩余信道估计并更新其信道估计。

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。

公开(公告)号：US09363769B2

公开(公告)日：2016-06-07

申请号：US13100252

申请日：2011-05-03

申请人： Tao Luo ,  Wanshi Chen ,  Juan Montojo

发明人： Tao Luo ,  Wanshi Chen ,  Juan Montojo

IPC分类号： H04W52/28 ,  H04W52/34 ,  H04W52/36 ,  H04W52/14 ,  H04W52/42

CPC分类号： H04W52/281 ,  H04W52/146 ,  H04W52/34 ,  H04W52/346 ,  H04W52/367 ,  H04W52/42

摘要： Certain aspects of the present disclosure relate to techniques for scaling transmission power. According to certain aspects, a technique for scaling transmission power may include scaling transmission power of one or more uplink channel symbols to be transmitted in a subframe, utilizing a first set of one or more scaling coefficients, scaling transmission power of one or more sounding reference signal (SRS) symbols to be transmitted in the same subframe, utilizing a second set of one or more scaling coefficients, wherein the first set of scaling coefficients is different from the second set of scaling coefficients, and transmitting the scaled one or more uplink channel symbols and the scaled one or more SRS symbols utilizing the scaled transmission power values.

摘要翻译： 本公开的某些方面涉及用于缩放传输功率的技术。 根据某些方面，用于缩放发送功率的技术可以包括：利用第一组一个或多个缩放系数来缩放在子帧中发送的一个或多个上行链路信道符号的发射功率，缩放一个或多个探测参考的发射功率 信号（SRS）符号，利用第二组一个或多个缩放系数在同一子帧中传输，其中第一组缩放系数不同于第二组缩放系数，并且传送缩放的一个或多个上行链路信道 符号和经缩放的发射功率值的经缩放的一个或多个SRS符号。

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。

公开(公告)号：US09165745B2

公开(公告)日：2015-10-20

申请号：US14196190

申请日：2014-03-04

申请人： Tao Luo

发明人： Tao Luo

IPC分类号： H01J37/145 ,  H01J37/14 ,  H01J37/143 ,  H01J3/20

CPC分类号： H01J37/14 ,  H01J3/20 ,  H01J37/143 ,  H01J37/145 ,  H01J2237/1405

摘要： An apparatus includes a magnetic adjustment lens positioned at the electron beam path between the electron source and sample, the magnetic adjustment lens excited by an electric coil, and a permanent magnet lens positioned below the magnetic adjustment lens to focus the electron beam onto the sample surface, the permanent magnet lens excited by one or more permanent ring magnets enclosed except on a bottom surface by a magnetic field conductor. The magnetic adjustment lens may be excited to eliminate magnetic field leakage of the permanent magnet lens.

摘要翻译： 一种设备包括位于电子源和样品之间的电子束路径处的磁调节透镜，由电线圈激励的磁调节透镜和位于磁调节透镜下方的永磁体透镜，以将电子束聚焦到样品表面上 由一个或多个永久环形磁体激励的永磁体透镜，除了在磁场表面之外被磁场导体所包围。 可以激励磁调节透镜以消除永磁体透镜的磁场泄漏。

公开(公告)号：US09144037B2

公开(公告)日：2015-09-22

申请号：US12853168

申请日：2010-08-09

申请人： Kibeom Seong ,  Tao Luo ,  Taesang Yoo ,  Xiaoxia Zhang ,  Dung Ngoc Doan

发明人： Kibeom Seong ,  Tao Luo ,  Taesang Yoo ,  Xiaoxia Zhang ,  Dung Ngoc Doan

IPC分类号： H04B7/00 ,  H04W52/32 ,  H04L1/00 ,  H04W52/24 ,  H04W72/08 ,  H04W84/04

CPC分类号： H04W52/322 ,  H04L1/0045 ,  H04L1/0069 ,  H04L1/0072 ,  H04W52/244 ,  H04W72/082 ,  H04W84/045

摘要： Systems and methodologies are described that facilitate controlling interference in a heterogeneous wireless communication environment. A Physical Broadcast Channel (PBCH) transmission from an interfering base station can be punctured based upon a puncturing pattern as a function of a cell identifier (ID) and a transmit time. Puncturing can be effectuated by applying power control. Thus, a punctured symbol or subframe can have a reduced transmit power or a transmit power set to zero. Further, the puncturing pattern can be defined on a subframe basis or on a symbol basis.

摘要翻译： 描述了便于控制异构无线通信环境中的干扰的系统和方法。 可以基于作为小区标识符（ID）和发送时间的函数的删截模式来对来自干扰基站的物理广播信道（PBCH）传输进行删截。 通过施加电源控制可以实现穿刺。 因此，打孔的符号或子帧可以具有降低的发射功率或设置为零的发射功率。 此外，可以基于子帧或基于符号来定义删截图案。