利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

177 条记录 (耗时 0.022 秒)

    METHOD FOR IMPROVING DATA THROUGHPUT IN WIRELESS NETWORKS
    21.
    发明授权
    METHOD FOR IMPROVING DATA THROUGHPUT IN WIRELESS NETWORKS 有权

    公开(公告)号：EP3108622B1

    公开(公告)日：2018-12-12

    申请号：EP15712679.8

    申请日：2015-02-15

    申请人： Telefonaktiebolaget LM Ericsson (publ)

    发明人： MARIC, Ivana ,  HUI, Dennis

    IPC分类号： H04L12/701 ,  H04W40/00 ,  H04W40/12 ,  H04W40/22

    CPC分类号： H04W40/04 ,  H04W40/12 ,  H04W40/22

    摘要： The proposed layer solution defines two or more layers of relay nodes to convey traffic data from a source node to a destination node. All of the nodes in a given layer were selected for that layer because they each satisfied a signal quality requirement specified for that layer, where all relay nodes defined in one layer simultaneously start transmitting in response to a received transmission. Due to the layered approach, the destination node may be configured to decode only the traffic data relayed by the relay nodes in the immediately preceding (final) layer while treating any remaining received signals as noise. As a result, only those access nodes most likely to significantly contribute to and improve the signal quality of traffic data received at the destination node are selected as relay nodes for a particular source-destination node pair.

    BEAM-SCAN TIME INDICATOR
    22.
    发明公开
    BEAM-SCAN TIME INDICATOR 审中-公开

    公开(公告)号：EP3369275A1

    公开(公告)日：2018-09-05

    申请号：EP15807716.4

    申请日：2015-11-09

    申请人： Telefonaktiebolaget LM Ericsson (PUBL)

    发明人： AXNÄS, Johan ,  HUI, Dennis ,  BALACHANDRAN, Kumar ,  SAHLIN, Henrik ,  RUNE, Johan ,  DA SILVA, Icaro L. J. ,  REIAL, Andres

    IPC分类号： H04W56/00 ,  H04W72/00

    CPC分类号： H04W56/0015 ,  H04W72/0446

    摘要： The present disclosure relates to transmitting synchronization signals and in particular to so called beam sweep. In particular the disclosure relates to methods for providing synchronization using synchronization sequences that are transmitted at different points in time. The disclosure also relates to corresponding devices and computer programs. A method in a network node, for transmitting synchronization sequences of a synchronization signal to one or more receiving wireless devices, comprises determining multiple synchronization sequences, such that each synchronization sequence comprises a respective timing indication, whereby each synchronization sequence enables determination of a time of an event in a receiving wireless device and transmitting the synchronization sequences to the one or more wireless devices, at different points in time.

    ENERGY EFFICIENT OPERATION FOR DENSE DEPLOYMENT OF WIRELESS ACCESS NODES
    24.
    发明授权
    ENERGY EFFICIENT OPERATION FOR DENSE DEPLOYMENT OF WIRELESS ACCESS NODES 有权
    无线接入节点密集部署的高效节能操作

    公开(公告)号：EP2783536B1

    公开(公告)日：2017-08-02

    申请号：EP12813110.9

    申请日：2012-11-19

    申请人： Telefonaktiebolaget LM Ericsson (publ)

    发明人： HUI, Dennis ,  BALACHANDRAN, Kumar ,  GUEY, Jiann-Ching

    IPC分类号： H04W52/02 ,  H04W88/08 ,  H04W76/04

    CPC分类号： H04W52/0206 ,  H04W76/28 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/166 ,  Y02D70/24 ,  Y02D70/25

    摘要： Systems and methods are disclosed for providing energy efficient operation for wireless access nodes in a dense deployment of wireless access nodes in a cellular communication network. In one particular embodiment, wireless access nodes form a super dense network. In one embodiment, a wireless access node in a dense deployment of wireless access nodes in a cellular communication network includes a transmitter and a receiver that are operated according to a discontinuous transmit and a discontinuous receive mode of operation. The wireless access node controls one or more duty cycles for the discontinuous transmit and discontinuous receive mode of operation based on an alertness state of the wireless access node. In one embodiment, the one or more duty cycles increase as the alertness state of the wireless access node increases. In this manner, the wireless access node is operated in an energy efficient manner.

    摘要翻译： 公开了用于在蜂窝通信网络中密集部署无线接入节点中为无线接入节点提供节能操作的系统和方法。 在一个特定实施例中，无线接入节点形成超密集网络。 在一个实施例中，蜂窝通信网络中密集部署的无线接入节点中的无线接入节点包括根据不连续接收操作模式和不连续接收操作模式操作的发射机和接收机。 基于无线接入节点的清醒状态，无线接入节点控制用于不连续发射和不连续接收操作模式的一个或多个占空比。 在一个实施例中，随着无线接入节点的清醒状态增加，一个或多个占空比增加。 以这种方式，无线接入节点以节能方式运行。

    COMMUNICATING OVER A DESIRED TONE IN THE PRESENCE OF INTERFERENCE HAVING AN UNKNOWN MAGNITUDE THAT IS SUBSTANTIALLY CONSTANT
    25.
    发明公开
    COMMUNICATING OVER A DESIRED TONE IN THE PRESENCE OF INTERFERENCE HAVING AN UNKNOWN MAGNITUDE THAT IS SUBSTANTIALLY CONSTANT 有权
    ÜBERTRAGUNGIN EINEM NULLRAUM EINER VORGEGEBENEN FREQUENZ

    公开(公告)号：EP2896175A2

    公开(公告)日：2015-07-22

    申请号：EP13783669.8

    申请日：2013-08-12

    申请人： Telefonaktiebolaget LM Ericsson (PUBL)

    发明人： HUI, Dennis

    IPC分类号： H04L27/26 ,  H04L27/32

    CPC分类号： H04B1/0475 ,  H04L27/2627 ,  H04L27/2697 ,  H04L27/32

    摘要： Methods and systems are disclosed for transmitting data over a desired frequency tone in the presence of an interference that has an unknown magnitude that is substantially constant, in general, data symbols are transmitted in a null space of the desired frequency tone, The null space of the desired frequency tone is orthogonal to the desired frequency tone. As such, the data symbols transmitted in the null space of the desired frequency tone are not interfered with by the interference at the desired frequency tone regardless of the magnitude of the interference. The data symbols transmitted in the null space of the desired frequency tone can then be recovered by a receiver without estimation of or compensation for the interference at the desired frequency tone.

    摘要翻译： 公开了用于在存在具有基本恒定的未知幅度的干扰的情况下通过期望的频率音调发送数据的方法和系统。 通常，数据符号在所需频率音的零空间中发送。 所需频率音调的零空间与期望的频率音调正交。 这样，在期望的频率音调的零空间中发送的数据符号不受干扰的干扰，而不受干扰的大小的干扰。 然后可以在接收机中恢复在期望频率音调的零空间中发送的数据符号，而不对所需频率音频下的干扰进行估计或补偿。

    DISTRIBUTED COMPUTATION OF PRECODING WEIGHTS FOR COORDINATED MULTIPOINT TRANSMISSION ON THE DOWNLINK
    26.
    发明公开
    DISTRIBUTED COMPUTATION OF PRECODING WEIGHTS FOR COORDINATED MULTIPOINT TRANSMISSION ON THE DOWNLINK 审中-公开
    协调一致的下行链路多点的传输VORKODIERUNGSGEWICHTEN的分布式计算

    公开(公告)号：EP2792082A2

    公开(公告)日：2014-10-22

    申请号：EP12823007.5

    申请日：2012-12-17

    申请人： Telefonaktiebolaget LM Ericsson (PUBL)

    发明人： HUI, Dennis ,  ZANGI, Kambiz

    IPC分类号： H04B7/02 ,  H04B7/04 ,  H04W52/34 ,  H04W52/36

    CPC分类号： H04B7/024 ,  H04B7/0465 ,  H04W52/346 ,  H04W52/365

    摘要： In a Coordinated Multi-point (CoMP) system, the base station (BS) in each serving cell (or sector) is allowed to use not only its own antennas, but also the antennas of neighboring BSs to transmit to mobile terminals in the serving cell to form a floating CoMP cell. The serving BS in each floating CoMP cell computes tentative linear precoding weights for transmissions from the coordinating BSs in the floating CoMP cell to users in the serving cell of the floating CoMP cell. The serving BS determines the power availability for transmit antennas in the floating CoMP cell that are shared with other floating CoMP cells, and scales the tentative precoding weights based on the power availability of the shared transmit antennas to determine final precoding weights so that the power constraints of the shared transmit antennas will not be violated.

    EXTENDED COORDINATED MULTIPOINT CELLS TO MITIGATE INTER-COMP-CELL DOWNLINK INTERFERENCE
    29.
    发明公开
    EXTENDED COORDINATED MULTIPOINT CELLS TO MITIGATE INTER-COMP-CELL DOWNLINK INTERFERENCE 有权
    扩展协作多点细胞减少之间的CoMP小区DOWN范围问题

    公开(公告)号：EP2430872A1

    公开(公告)日：2012-03-21

    申请号：EP10726583.7

    申请日：2010-05-13

    申请人： Telefonaktiebolaget LM Ericsson (publ)

    发明人： ZANGI, Kambiz ,  GUEY, Jiann-Ching ,  HUI, Dennis

    IPC分类号： H04W72/12

    CPC分类号： H04W72/1231 ,  H04B7/024 ,  H04L5/0066 ,  H04L5/0091

    摘要： Inter-CoMP cell interference is reduced by "extending" at least one CoMP cell to include UEs served by a neighboring CoMP ceil in the extended CoMP cell's transmission calculations, so as to minimize interference to the UEs served by other CoMP ceils. Each UE in a border sub-cell identifies neighboring CoMP cells from which it receives interference in excess of a threshold value, and includes the interfering CoMP cells in a close-neighbor set. The close-neighbor set is transmitted to the UE's serving CoMP cell controller. When downlink transmissions are scheduled to the target UE, the controller notifies the neighboring CoMP cells in the close-neighbor set, identifying the target UE, Those CoM P cells then use information about the channel conditions from their transmit antennas to the target UE receive antennas to compute transmissions to UEs they serve, with the constraint that interference to the target UE is below a predetermined level.