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76 条记录 (耗时 0.017 秒)

    CLOSED LOOP PRECODING WEIGHT ESTIMATION
    5.
    发明授权
    CLOSED LOOP PRECODING WEIGHT ESTIMATION 有权

    公开(公告)号：EP2529489B1

    公开(公告)日：2018-10-17

    申请号：EP10844841.6

    申请日：2010-12-29

    申请人： Telefonaktiebolaget LM Ericsson (publ)

    发明人： ÖKVIST, Peter ,  SIMONSSON, Arne ,  ASPLUND, Henrik ,  FRÖBERG OLSSON, Jonas

    IPC分类号： H04B7/04 ,  H04B7/06 ,  H04L1/20 ,  H04L25/02 ,  H04W72/12

    CPC分类号： H04W72/1231 ,  H04L1/0023 ,  H04L1/0026 ,  H04L1/20 ,  H04L25/0226 ,  H04W28/04

    摘要： Embodiments herein relate to a method in a first communication node (201) for estimating pre-coding weights for transmission on a radio channel (205) between the first node (201) and a second communication node (203) in a communication network (200). The first node (201) comprises at least two transmit antennas. Each transmit antenna is configured to transmit on each of at least two sub-bands. The first node (201) obtains at least two pre-coding reports. Each pre-coding report is for a different time instance. Each pre-coding report comprises pre-coding weights or indications to pre-coding weights. The pre-coding weights are associated with each transmit antenna and with each sub-band. For each transmit antenna, the first node (201) estimates pre-coding weights for at least one of the sub-bands based on the pre-coding weights in the obtained pre-coding reports. The estimated pre-coding weights are different from a most resent of the obtained pre-coding reports.

    ESTABLISHING USEFULNESS OF REMOTE ANTENNA UNITS IN A WIRELESS COMMUNICATIONS SYSTEM
    6.
    发明公开
    ESTABLISHING USEFULNESS OF REMOTE ANTENNA UNITS IN A WIRELESS COMMUNICATIONS SYSTEM 审中-公开
    在无线通信系统中建立远程天线单元的有效性

    公开(公告)号：EP3304966A1

    公开(公告)日：2018-04-11

    申请号：EP15726576.0

    申请日：2015-05-28

    申请人： Telefonaktiebolaget LM Ericsson (publ)

    发明人： SÖDER, Johan ,  ASPLUND, Henrik ,  SIMONSSON, Arne ,  ERICSSON, Mårten

    IPC分类号： H04W24/08 ,  H04W16/20

    摘要： A method (10) performed in a wireless communications system (10) for establishing usefulness of remote units is provided. The wireless communications system (10) monitors one or more remote units (2i, 2j, . . . , 2N) of a distributed antenna system (1). The method (10) comprises: establishing (11), per remote unit (2i, 2j, . . . , 2N), received signal strength of a wireless communication; establishing (12), per remote unit (2i, 2j, . . . , 2N), a quantity related to the obtained received signal strength; and establishing (13) a measure on usefulness of each of two or more remote units (2i, 2j, . . . , 2N) based on the received signal strength and on the quantity. A corresponding wireless communications system, computer programs, and computer program products are also provided.

    ANTENNA DEVICE
    7.
    发明公开
    ANTENNA DEVICE 审中-公开

    公开(公告)号：EP3197066A1

    公开(公告)日：2017-07-26

    申请号：EP17160523.1

    申请日：2009-12-15

    申请人： Telefonaktiebolaget LM Ericsson (publ)

    发明人： GÖRANSSON, Bo ,  OVESJÖ, Fredrik ,  ASPLUND, Henrik ,  RINGSTRÖM, Markus

    IPC分类号： H04B7/04 ,  H04L1/06

    CPC分类号： H04L1/06 ,  H04B7/0417 ,  H04B7/0469 ,  H04B7/0634 ,  H04B7/10

    摘要： The invention relates to the technical field of radio communications, and in particular to an antenna device for a radio base station, and a method for precoding data in a Multiple-Input Multiple-Output (MIMO) system. Embodiments of the invention disclose a secondary precoder 24 in series with a multiple-input multiple-output precoder 22. The secondary precoder 24 has a plurality of inputs 34, 36 and a plurality of outputs 38, 40. The second plurality of inputs being in communication with each plurality of outputs 38, 40 such that one or more signals input to a respective one or more of the second plurality of inputs 34, 36 provides a substantially equal power of signals at the second plurality of outputs 38, 40.

    MIMO COVERAGE OVER BI-DIRECTIONAL LEAKY CABLES
    8.
    发明授权
    MIMO COVERAGE OVER BI-DIRECTIONAL LEAKY CABLES 有权
    MIMO方向覆盖双向漏电电缆

    公开(公告)号：EP2795719B1

    公开(公告)日：2017-05-24

    申请号：EP11810597.2

    申请日：2011-12-22

    申请人： Telefonaktiebolaget LM Ericsson (publ)

    发明人： COLDREY, Mikael ,  ASPLUND, Henrik ,  JOHANSSON, Martin ,  NILSSON, Andreas

    IPC分类号： H01Q1/00 ,  H01Q13/20 ,  H04B5/00 ,  H04B7/0413

    CPC分类号： H04B7/0413 ,  H01Q1/007 ,  H01Q13/203 ,  H04B5/0018

    摘要： The invention relates to a wireless communications system for communicating with user equipment located inside a physical structure. The system comprise a node having at least two antenna ports and being adapted for wireless communication with the user equipment, and at least one leaky cable having two ends wherein each end of the at least one leaky cable is connected to one of the antenna ports of the node. The at least one leaky cable is provided at least partially inside the physical structure and being adapted for wireless communication over a radio channel with the user equipment.

    摘要翻译： 本发明涉及一种用于与位于物理结构内的用户设备进行通信的无线通信系统。 该系统包括具有至少两个天线端口并适于与用户设备进行无线通信的节点，以及具有两个端部的至少一个泄漏电缆，其中至少一个泄漏电缆的每个端部连接到天线端口之一 节点。 所述至少一个泄漏电缆至少部分地设置在所述物理结构的内部并且适于通过无线电信道与所述用户设备进行无线通信。

    A DEVICE FOR IMPROVED ISOLATION CHARACTERISTICS IN A TELECOMMUNICATIONS SYSTEM
    10.
    发明公开
    A DEVICE FOR IMPROVED ISOLATION CHARACTERISTICS IN A TELECOMMUNICATIONS SYSTEM 审中-公开
    一种改进电信系统隔离特性的装置

    公开(公告)号：EP3043490A1

    公开(公告)日：2016-07-13

    申请号：EP16158666.4

    申请日：2006-07-06

    申请人： Telefonaktiebolaget LM Ericsson (publ)

    发明人： FELTER, Stefan ,  BERG, Jan-Erik ,  ASPLUND, Henrik ,  JOHANSSON, Martin ,  PETERSSON, Sven

    IPC分类号： H04B7/10 ,  H04B7/06

    CPC分类号： H04B7/10

    摘要： The invention discloses an apparatus (100) in a wireless telecommunications system, comprising at least a first antenna (110) of a first polarization and a second antenna (120) of a second polarization. The apparatus (100) additionally comprises a receiver (130) and a transmitter (140), and is intended for communication with at least one other device in the wireless telecommunications system. The apparatus (100) is equipped with means (150, 204) for estimating the polarization state of a signal which is received from the one other device, and the apparatus (100) additionally comprises means (160, 206) for adapting the polarization state of signals transmitted from the apparatus (100) to the one other device on the basis of said estimate of the received signal.

    摘要翻译： 本发明公开了一种无线电信系统中的设备（100），其至少包括第一极化的第一天线（110）和第二极化的第二天线（120）。 设备（100）另外包括接收器（130）和发射器（140），并且旨在用于与无线电信系统中的至少一个其他设备进行通信。 装置（100）配备有用于估计从另一个装置接收的信号的极化状态的装置（150,204），并且装置（100）另外包括用于适配极化状态的装置（160,206） 基于接收信号的所述估计，从设备（100）发送到另一个设备的信号。