利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

31 条记录 (耗时 0.056 秒)

    Method for mitigating outages in heterogeneous networks
    3.
    发明授权
    Method for mitigating outages in heterogeneous networks 有权
    减少异构网络中断的方法

    公开(公告)号：US08854994B2

    公开(公告)日：2014-10-07

    申请号：US13042757

    申请日：2011-03-08

    申请人： Teck Hu ,  Matthew Baker ,  Fang-Chen Cheng ,  Jung Ah Lee

    发明人： Teck Hu ,  Matthew Baker ,  Fang-Chen Cheng ,  Jung Ah Lee

    IPC分类号： H04W24/00 ,  H04L5/00

    CPC分类号： H04L5/0053 ,  H04L5/00 ,  H04L5/001 ,  H04L5/0057 ,  H04L5/006 ,  H04L5/0091

    摘要： The present invention provides a method for mitigating outages in wireless communication systems using feedback for control channels formed by aggregating groups of resource blocks or resource elements, the method. One embodiment of the method includes generating control channel feedback at user equipment. The control channel feedback is generated using one or more measurements performed on signals received at the user equipment over a downlink control channel at a current aggregation level. The method also includes transmitting the control channel feedback over an uplink channel and using this information for the optimal implementation of Cell range expansion by the network.

    摘要翻译： 本发明提供了一种减轻无线通信系统中断的方法，该方法使用由资源块或资源元素组合形成的控制信道的反馈。 该方法的一个实施例包括在用户设备处产生控制信道反馈。 使用对在当前聚合级别的下行链路控制信道上在用户设备处接收的信号执行的一个或多个测量来生成控制信道反馈。 该方法还包括通过上行链路信道发送控制信道反馈，并使用该信息来最佳地实现由网络扩展的小区范围。

    VIRTUAL SECTORIZATION USING AN ACTIVE ANNTENNA ARRAY
    4.
    发明申请
    VIRTUAL SECTORIZATION USING AN ACTIVE ANNTENNA ARRAY 有权
    使用活动天线阵列进行虚拟分区

    公开(公告)号：US20130235807A1

    公开(公告)日：2013-09-12

    申请号：US13415142

    申请日：2012-03-08

    申请人： Jung Ah Lee ,  Philippe Sehier ,  Jea-Pierre Balech ,  Fang-Chen Cheng

    发明人： Jung Ah Lee ,  Philippe Sehier ,  Jea-Pierre Balech ,  Fang-Chen Cheng

    IPC分类号： H04W72/04

    CPC分类号： H04L1/0026 ,  H01Q1/246 ,  H04L1/0035 ,  H04W16/28 ,  H04W36/06 ,  H04W72/12

    摘要： Embodiments of the claimed subject matter provide a method and apparatus for virtual sectorization using an active antenna array. Embodiments of the apparatus include a transmitter for providing signals to an active antenna array. The signals cause the active antenna array to transmit a first reference signal to a first sector indicated to user equipment within the first sector by a sector identifier. The signals also cause the active antenna array to transmit a plurality of second reference signals into a corresponding plurality of second virtual sectors that overlap the first sector. The apparatus also includes a scheduler for scheduling transmission to user equipment based on feedback generated by the user equipment using the first reference signal or the second reference signals.

    摘要翻译： 所要求保护的主题的实施例提供了一种使用有源天线阵列进行虚拟扇区化的方法和装置。 该装置的实施例包括用于向有源天线阵列提供信号的发射机。 信号使有源天线阵列通过扇区标识符将第一参考信号发送到指示给第一扇区内的用户设备的第一扇区。 信号还使有源天线阵列将多个第二参考信号发送到与第一扇区重叠的对应的多个第二虚拟扇区中。 该装置还包括调度器，用于基于使用第一参考信号或第二参考信号的用户设备产生的反馈来调度对用户设备的传输。

    METHOD FOR RANGE EXTENSION IN WIRELESS COMMUNICATION SYSTEMS
    5.
    发明申请
    METHOD FOR RANGE EXTENSION IN WIRELESS COMMUNICATION SYSTEMS 有权
    无线通信系统范围扩展方法

    公开(公告)号：US20110103499A1

    公开(公告)日：2011-05-05

    申请号：US12909256

    申请日：2010-10-21

    申请人： FANG-CHEN CHENG ,  Jung Ah Lee

    发明人： FANG-CHEN CHENG ,  Jung Ah Lee

    IPC分类号： H04B7/00 ,  H04L27/28

    CPC分类号： H04W56/0005 ,  H04W56/0045 ,  H04W56/006 ,  H04W92/10

    摘要： The present invention provides a method for range extension is wireless communication systems. One embodiment of the method includes determining whether a mobile unit is within a first range corresponding to a range of timing advances supported by a timing advance command. This embodiment also includes transmitting a plurality of timing advance commands to the mobile unit when the mobile unit is outside the first range so that the mobile unit can synchronize with the base station by combining information in the plurality of timing advance commands.

    摘要翻译： 本发明提供一种范围扩展的方法是无线通信系统。 该方法的一个实施例包括确定移动单元是否在与由定时提前命令支持的定时前进的范围相对应的第一范围内。 该实施例还包括当移动单元在第一范围之外时向移动单元发送多个定时提前命令，使得移动单元可以通过组合多个定时提前命令中的信息来与基站同步。

    Method and apparatus for packet wireless telecommunications
    7.
    发明申请
    Method and apparatus for packet wireless telecommunications 有权
    分组无线电信的方法和装置

    公开(公告)号：US20080267157A1

    公开(公告)日：2008-10-30

    申请号：US11796853

    申请日：2007-04-30

    申请人： Jung Ah Lee ,  Said Tatesh ,  Hai Zhou

    发明人： Jung Ah Lee ,  Said Tatesh ,  Hai Zhou

    IPC分类号： H04B7/216

    CPC分类号： H04L27/2602 ,  H04L1/0006 ,  H04L1/1812 ,  H04L27/2626 ,  H04L27/2647

    摘要： In a wireless telecommunications network, a Code Division Multiple Access (CDMA) scheme is applied to data to encode it. The encoded data transmitted in the uplink using an Orthogonal Frequency Division Multiplexing (OFDM) frame structure including a cyclic prefix (CP). The CDMA encoded data may be time multiplexed with Single Carrier-Frequency Division Multiple Access (SC-FDMA) transmissions. The CDMA transmissions may be used for relatively small payloads, such as those associated with voice traffic and control signals, and the SC-FDMA transmissions used for higher date rate transmissions. This enables autonomous transmission, without scheduling, for smaller payloads. A transmitter includes a selector 3 for performing time multiplexing in the uplink, the required mode being indicated by the Hybrid Automatic Repeat Request (HARQ) ID. A first branch 1 carries SC-FDMA data and a second branch 2 carries data to be transmitted as a CDMA scheme. A CAZAC code may be used in encoding the CDMA data.

    摘要翻译： 在无线电信网络中，将码分多址（CDMA）方案应用于数据进行编码。 使用包括循环前缀（CP）的正交频分复用（OFDM）帧结构在上行链路中发送的编码数据。 CDMA编码数据可以与单载波频分多址（SC-FDMA）传输进行时间复用。 CDMA传输可以用于相对小的有效载荷，例如与语音业务和控制信号相关联的那些，以及用于较高日期传输的SC-FDMA传输。 这使得能够进行自主传输，而无需调度，可以实现更小的有效载荷。 发射机包括用于在上行链路中执行时间复用的选择器3，所需模式由混合自动重传请求（HARQ）ID指示。 第一分支1携带SC-FDMA数据，第二分支2携带要作为CDMA方案发送的数据。 可以在编码CDMA数据时使用CAZAC码。

    RACH transmitter and receiver and method thereof
    8.
    发明申请
    RACH transmitter and receiver and method thereof 审中-公开
    RACH发射机和接收机及其方法

    公开(公告)号：US20080080461A1

    公开(公告)日：2008-04-03

    申请号：US11540853

    申请日：2006-09-29

    申请人： Jung Ah Lee

    发明人： Jung Ah Lee

    IPC分类号： H04B7/216

    CPC分类号： H04B7/2637 ,  H04L5/0007 ,  H04L5/0048 ,  H04L5/0053 ,  H04L27/2613 ,  H04L27/2655 ,  H04L27/2675 ,  H04W74/0866

    摘要： Disclosed is a method of, and apparatus for, processing a Random Access Channel (RACH) burst comprising a processed preamble group having at least two processed preambles. The processed preambles may be derived from short preambles, i.e., preamble comprising less than 887 bits, such that the RACH burst may be detected over shorter coherent accumulation time intervals relative to prior art coherent accumulation time intervals, thereby improving RACH burst detection. A transmitter generates a RACH burst comprising two or more processed preambles and transmits the RACH burst to a receiver. The receiver processes the RACH burst by correlating the two or more processed preambles to a plurality of reference signals in a frequency domain to produce a set of two or more frequency domain correlated outputs for each of the plurality of reference signals. The RACH burst is then detected based on energy associated with at least one frequency domain correlated output in the set of two or more frequency domain correlated outputs to a threshold energy value.

    摘要翻译： 公开了一种处理随机接入信道（RACH）突发的方法和装置，其包括具有至少两个经处理的前同步码的经处理的前同步码组。 经处理的前导码可以从短前导码导出，即包含少于887位的前同步码，使得相对于现有技术的相干累积时间间隔，可以在较短的相干累积时间间隔内检测到RACH脉冲串，从而改善了RACH脉冲串检测。 发射机产生包括两个或多个经处理的前同步码的RACH脉冲串，并将RACH脉冲串发射到接收机。 接收机通过将两个或更多个经处理的前导码与频域中的多个参考信号相关联来处理RACH突发，以产生用于多个参考信号中的每一个的两个或多个频域相关输出的集合。 然后基于与两个或多个频域相关输出的集合中的至少一个频域相关输出相关联的能量到阈值能量值来检测RACH突发。

    Configurable random access channel structure for range extension in a wireless communication system
    9.
    发明授权
    Configurable random access channel structure for range extension in a wireless communication system 有权
    无线通信系统范围扩展的可配置随机接入信道结构

    公开(公告)号：US08693412B2

    公开(公告)日：2014-04-08

    申请号：US12671553

    申请日：2007-06-28

    申请人： Iqbal Jarni ,  Jung Ah Lee ,  Said Tatesh

    发明人： Iqbal Jarni ,  Jung Ah Lee ,  Said Tatesh

    IPC分类号： H04W4/00 ,  H04B7/208 ,  H04W72/00 ,  H04W74/00 ,  H04W84/04

    CPC分类号： H04W74/00 ,  H04W16/24 ,  H04W74/004 ,  H04W74/0833 ,  H04W74/0866 ,  H04W84/04

    摘要： The present invention provides a method involving a configurable random access channel structure. One embodiment of the method includes generating a random access channel burst that includes a cyclic prefix and a selected number of repetitions of a preamble. The number of repetitions is selected based on at least one of a cell radius and a radio transmission frequency. This embodiment of the method also includes transmitting the random access channel burst over an air interface.

    摘要翻译： 本发明提供一种涉及可配置的随机接入信道结构的方法。 该方法的一个实施例包括生成随机接入信道突发，该随机接入信道突发包括循环前缀和所选择的重复数量的前同步码。 基于小区半径和无线电发送频率中的至少一个来选择重复次数。 该方法的该实施例还包括通过空中接口发送随机接入信道突发。

    POLYAMIDE-POLY(PHENYLENE ETHER) FIBER, ARTICLE, COMPOSITION, AND METHOD
    10.
    发明申请
    POLYAMIDE-POLY(PHENYLENE ETHER) FIBER, ARTICLE, COMPOSITION, AND METHOD 审中-公开
    聚酰胺 - 聚（苯乙烯醚）纤维，制品，组合物和方法

    公开(公告)号：US20140065405A1

    公开(公告)日：2014-03-06

    申请号：US13650352

    申请日：2012-10-12

    申请人： Jung Ah Lee ,  Sai-Pei Ting ,  Hua Guo

    发明人： Jung Ah Lee ,  Sai-Pei Ting ,  Hua Guo

    IPC分类号： C08L77/06 ,  C08L71/08

    CPC分类号： C08L77/06 ,  C08K5/5313 ,  C08L71/08 ,  C08L71/12 ,  C08L77/02 ,  D01F1/07 ,  D01F6/90 ,  Y10T428/249921

    摘要： A flame retardant polyamide fiber is prepared from a composition containing specific amounts of a polyamide, a poly(phenylene ether), a flame retardant that includes a metal dialkylphosphinate, and a compatibilizing agent. The composition used to form the fiber can be prepared in a process that includes melt blending a portion of the polyamide with all the other ingredients to form an intermediate composition, and then melt blending the intermediate composition with the remainder of the polyamide. The composition has small disperse phase particles that facilitate its use to melt spin fibers.

    摘要翻译： 阻燃聚酰胺纤维由含有特定量的聚酰胺，聚（苯醚），包含二烷基次膦酸金属的阻燃剂和相容剂的组合物制备。 用于形成纤维的组合物可以在包括将一部分聚酰胺与所有其它成分熔融共混以形成中间体组合物，然后将中间体组合物与剩余的聚酰胺熔融共混的方法中制备。 该组合物具有小的分散相颗粒，其有利于其用于熔融纺丝纤维。