利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

417 条记录 (耗时 0.04 秒)

    Method and apparatus for inter-system handover
    21.
    发明授权
    Method and apparatus for inter-system handover 有权
    系统间切换的方法和装置

    公开(公告)号：US08208925B2

    公开(公告)日：2012-06-26

    申请号：US13100802

    申请日：2011-05-04

    申请人： Rashid Ahmed Akbar Attar ,  Durga Prasad Malladi ,  Francesco Grilli ,  Kirti Gupta ,  Lorenzo Casaccia ,  Nathan Edward Tenny ,  Oronzo Flore

    发明人： Rashid Ahmed Akbar Attar ,  Durga Prasad Malladi ,  Francesco Grilli ,  Kirti Gupta ,  Lorenzo Casaccia ,  Nathan Edward Tenny ,  Oronzo Flore

    IPC分类号： H04W36/00

    CPC分类号： H04W36/0061 ,  H04W36/38

    摘要： An inter-system handover system for a wireless communication system supports hand-down and hand-up of user equipment (UE) to different radio access technologies, including synchronous and asynchronous systems. Latency and handover connection failures are reduced by an access node (nodeB) broadcasting information about neighboring systems (targets) when the UE reception (RX) capability is both inside or outside the reception range of the target. A single RX chain is sufficient, although transitioning between a wireless wide area network (WWAN) to a wireless local area network may (WLAN) may advantageously benefit from simultaneous operation on two Rx chains. Optimized list of neighboring RAT systems (targets) are broadcast from the network, including measurement parameters and reporting instructions. Thereby, UE-driven reporting minimizes latencies. UE reports other-system searches to network only if needed for a handover. In addition, handover requests can be bundled with other-system measurement information, if necessary, for additional efficiencies.

    摘要翻译： 用于无线通信系统的系统间切换系统支持用户设备（UE）向包括同步和异步系统的不同无线电接入技术的切换和交换。 当UE接收（RX）能力在目标的接收范围内部或外部时，接入节点（节点B）广播关于相邻系统（目标）的信息的延迟和切换连接故障被减少。 单个RX链是足够的，尽管在无线广域网（WWAN）到无线局域网（WLAN）之间的转换可以有利地受益于在两个Rx链上的同时操作。 相邻RAT系统（目标）的优化列表从网络广播，包括测量参数和报告指令。 因此，UE驱动的报告使延迟最小化。 只有在切换需要时，UE才会将其他系统搜索报告给网络。 此外，如果需要，可以将切换请求与其他系统的测量信息捆绑在一起以用于附加的效率。

    Data and control multiplexing in wireless communications
    22.
    发明授权
    Data and control multiplexing in wireless communications 有权

    公开(公告)号：US09622228B2

    公开(公告)日：2017-04-11

    申请号：US12764736

    申请日：2010-04-21

    申请人： Durga Prasad Malladi ,  Juan Montojo ,  Jelena M. Damnjanovic

    发明人： Durga Prasad Malladi ,  Juan Montojo ,  Jelena M. Damnjanovic

    IPC分类号： H04B7/212 ,  H04W72/04 ,  H04B1/713

    CPC分类号： H04W72/042 ,  H04B1/713

    摘要： Systems and methodologies are described that facilitate defining a new control region over resources allocated for communicating general non-control data in a legacy network specification. The new control region can comprise multiple control channels, which can be multiplexed together and/or with general data channels. Devices can receive control data over the new control region as well as information regarding the region, such as location of the region, location of specific resources, multiplexing schemes, frequency hopping patterns, and/or the like to appropriately decode relevant control data. This allows for expanded control resources to support multicarrier assignments, large numbers of devices being addressed, special operation modes, new downlink control information (DCI) formats, and/or the like.

    Continuous mode operation for wireless communications systems
    24.
    发明授权
    Continuous mode operation for wireless communications systems 有权
    无线通信系统的连续模式操作

    公开(公告)号：US09337962B2

    公开(公告)日：2016-05-10

    申请号：US13029072

    申请日：2011-02-16

    申请人： Hao Xu ,  Madhavan S. Vajapeyam ,  Naga Bhushan ,  Wanshi Chen ,  Durga Prasad Malladi

    发明人： Hao Xu ,  Madhavan S. Vajapeyam ,  Naga Bhushan ,  Wanshi Chen ,  Durga Prasad Malladi

    IPC分类号： H04L1/16 ,  H04L1/18

    CPC分类号： H04L1/1657 ,  H04L1/1854 ,  H04L1/1887

    摘要： Certain aspects of the present disclosure propose techniques for a continuous communications mode in a wireless communications system. The technique may involve processing bundles of transmission time interval (TTI) transmissions having transmission times that are mapped to voice-over-internet-protocol (VOIP) arrival times, wherein the bundled TTI transmissions are processed without acknowledgements to indicate the bundled TTI transmissions have been successfully received.

    摘要翻译： 本公开的某些方面提出了用于无线通信系统中的连续通信模式的技术。 该技术可以涉及处理具有映射到互联网协议（VOIP）到达时间的传输时间的传输时间间隔（TTI）传输束，其中，经过捆绑的TTI传输被处理而没有确认以指示捆绑的TTI传输具有 已成功收到。

    Method and apparatus for control and data multiplexing in a MIMO communication system
    25.
    发明授权
    Method and apparatus for control and data multiplexing in a MIMO communication system 有权
    用于MIMO通信系统中的控制和数据复用的方法和装置

    公开(公告)号：US09236985B2

    公开(公告)日：2016-01-12

    申请号：US12764871

    申请日：2010-04-21

    申请人： Wanshi Chen ,  Xiaoxia Zhang ,  Juan Montojo ,  Durga Prasad Malladi

    发明人： Wanshi Chen ,  Xiaoxia Zhang ,  Juan Montojo ,  Durga Prasad Malladi

    IPC分类号： H04W4/00 ,  H04L5/00 ,  H04L1/06 ,  H04B7/04 ,  H04B7/06 ,  H04L1/00 ,  H04L1/18

    CPC分类号： H04L5/0044 ,  H04B7/0404 ,  H04B7/0689 ,  H04L1/007 ,  H04L1/06 ,  H04L1/1812 ,  H04L5/0053

    摘要： Systems and methodologies are described herein that facilitate control and data multiplexing for uplink (UL) multiple-input-multiple-output (MIMO) communication within a wireless communication system. As described herein, a device conducting uplink MIMO communication in a wireless communication system can multiplex control signaling and data across one or more of a plurality of layers (e.g., corresponding to spatial layers, codewords, etc.) associated with an uplink transmission. Techniques are described herein for selecting layers of a transmission on which to schedule control signaling and selecting offsets to apply to the control signaling scheduled on selected layers. Further, techniques are described herein for leveraging a multi-layer transmission to increase the efficiency of acknowledgement communication. In addition, techniques are described for selecting a modulation and coding scheme (MCS) to apply to control signaling that is combined with data in an uplink multi-layer transmission.

    摘要翻译： 本文描述了便于无线通信系统内的上行链路（UL）多输入多输出（MIMO）通信的控制和数据多路复用的系统和方法。 如本文所述，在无线通信系统中进行上行链路MIMO通信的设备可以跨越与上行链路传输相关联的多个层（例如，对应于空间层，码字等）中的一个或多个层来复用控制信令和数据。 这里描述了用于选择传输的层的技术，其中调度控制信令和选择偏移以应用于在所选择的层上调度的控制信令。 此外，本文描述了用于利用多层传输来提高确认通信的效率的技术。 此外，描述了用于选择适用于与上行链路多层传输中的数据组合的控制信令的调制和编码方案（MCS）的技术。

    Efficient system identification schemes for communication systems
    27.
    发明授权
    Efficient system identification schemes for communication systems 有权
    通信系统的高效系统识别方案

    公开(公告)号：US09119132B2

    公开(公告)日：2015-08-25

    申请号：US12248303

    申请日：2008-10-09

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

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

    IPC分类号： H04J3/06 ,  H04W48/12 ,  H04J11/00 ,  H04L27/26

    CPC分类号： H04W48/12 ,  H04J11/0069 ,  H04L27/2602 ,  H04W56/001

    摘要： Systems and methodologies are described that facilitate efficiently indicating parameter(s) associated with a base station utilizing synchronization signals in a wireless communication environment. For instance, relative locations of a PSC and a SSC in a radio frame can be a function of a parameter. Further, a PSC sequence utilized to generate PSCs can be selected based upon a parameter. Moreover, inclusion or exclusion of PSCs from a radio frame can be a function of a parameter. Additionally or alternatively, pseudo random sequence mappings (e.g., to cell IDs, tone locations) can be a function of a parameter. Example parameters can be whether the base station is part of a TDD or a FDD system, whether the radio frame employs FS1 or FS2, whether the base station is associated with a macro or a femto cell, or whether the base station is associated with a unicast or a multicast system.

    摘要翻译： 描述了在无线通信环境中利用同步信号有助于有效地指示与基站相关联的参数的系统和方法。 例如，无线电帧中的PSC和SSC的相对位置可以是参数的函数。 此外，可以基于参数来选择用于生成PSC的PSC序列。 此外，从无线电帧中包含或排除PSC可以是参数的函数。 另外或替代地，伪随机序列映射（例如，到小区ID，音调位置）可以是参数的函数。 示例性参数可以是基站是TDD或FDD系统的一部分，无线电帧是使用FS1还是FS2，基站是与宏还是毫微微小区相关联，还是基站是否与 单播或多播系统。