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    PILOT SIGNAL TRANSMISSION METHOD, AND CHANNEL ESTIMATION METHOD, DEVICE AND SYSTEM
    71.
    发明公开
    PILOT SIGNAL TRANSMISSION METHOD, AND CHANNEL ESTIMATION METHOD, DEVICE AND SYSTEM 审中-公开
    导频信号传输方法以及信道估计方法，装置和系统

    公开(公告)号：EP2849398A1

    公开(公告)日：2015-03-18

    申请号：EP13787111.7

    申请日：2013-05-10

    申请人： Huawei Technologies Co., Ltd

    发明人： TIE, Xiaolei ,  MA, Xueli ,  HUA, Meng ,  FAN, Shuju

    IPC分类号： H04L25/02 ,  H04B7/04

    CPC分类号： H04L27/2626 ,  H04B1/0483 ,  H04B7/0413 ,  H04B7/0667 ,  H04B7/0684 ,  H04L1/0643 ,  H04L5/0025 ,  H04L5/0048 ,  H04L25/0204 ,  H04L25/0226 ,  Y02D70/1242 ,  Y02D70/444

    摘要： Embodiments of the present invention disclose a pilot signal transmitting method, and a channel estimation method, an apparatus, and a system. The method includes: within a transmission time interval TTI, transmitting a first pilot signal CPICH1 on a first antenna, and transmitting a second pilot signal CPICH2 on a second antenna; when no first-type terminal is scheduled within coverage of the MIMO system within the TTI, transmitting a third pilot signal CPICH3 on a third antenna, and transmitting a fourth pilot signal CPICH4 on a fourth antenna; and when a first-type terminal is scheduled within the coverage of the MIMO system within the TTI, transmitting the CPICH3 and a fifth pilot signal CPICH5 on the third antenna, and transmitting the CPICH4 and a sixth pilot signal CPICH6 on the fourth antenna. By using the method in the present invention, interference of a pilot signal to a legacy terminal can be greatly reduced, and while it is ensured that a first-type terminal can work well in a MIMO system, performance of the legacy terminal is also ensured, and power consumption for pilot transmitting can also be effectively reduced.

    摘要翻译： 本发明的实施例公开了一种导频信号发送方法，以及信道估计方法，装置和系统。 该方法包括：在传输时间间隔TTI内，在第一天线上传输第一导频信号CPICH1，并在第二天线上传输第二导频信号CPICH2; 当在TTI内的MIMO系统的覆盖范围内没有调度第一类终端时，在第三天线上发送第三导频信号CPICH3，并在第四天线上发送第四导频信号CPICH4; 当在TTI内的MIMO系统的覆盖范围内调度第一类终端时，在第三天线上发送CPICH3和第五导频信号CPICH5，并在第四天线上发送CPICH4和第六导频信号CPICH6。 通过使用本发明的方法，可以大大减少导频信号对传统终端的干扰，同时确保第一类终端在MIMO系统中能够很好地工作，同时保证了传统终端的性能 ，还可以有效降低导频发射的功耗。

    APPARATUS AND METHOD FOR CONTROL CHANNEL BEAM MANAGEMENT IN A WIRELESS SYSTEM WITH A LARGE NUMBER OF ANTENNAS
    72.
    发明公开
    APPARATUS AND METHOD FOR CONTROL CHANNEL BEAM MANAGEMENT IN A WIRELESS SYSTEM WITH A LARGE NUMBER OF ANTENNAS 审中-公开
    用于控制具有大量天线的无线系统中的信道波束管理的设备和方法

    公开(公告)号：EP2845356A1

    公开(公告)日：2015-03-11

    申请号：EP13784357.9

    申请日：2013-04-30

    申请人： Samsung Electronics Co., Ltd.

    发明人： LI, Ying ,  PI, Zhouyue ,  JOSIAM, Kaushik ,  NUGGEHALLI, Pavan

    IPC分类号： H04L27/26 ,  H04L1/06

    CPC分类号： H04W72/042 ,  H04B7/024 ,  H04B7/0417 ,  H04B7/0617 ,  H04B7/0684 ,  H04B7/0848 ,  H04W72/046

    摘要： A base stations (BS) are configured to perform a coordinated transmission to at least one user equipment (UE). The BS includes a plurality of antenna configured to communicate with the UE. The BS also includes processing circuitry coupled to the plurality of antennas and configured to transmit physical downlink control channel (PDCCH) to the at least one user equipment. The UE includes a plurality of antennas configured to communicate with the BS. The UE also includes a processing circuitry coupled to the plurality of antennas and configured to receive PDCCH from the BS. The PDCCH is included in one or more transmit (Tx) beams. A Tx beam is defined by the cell specific reference signal (CRS) transmitted through the Tx beam. A Tx beam is configured to carry a beam identifier, and the PDCCH is configured to include resource allocation information for the user equipment.

    摘要翻译： 基站（BS）被配置为执行到至少一个用户设备（UE）的协调传输。 BS包括配置成与UE通信的多个天线。 BS还包括耦合到多个天线并且被配置为向至少一个用户设备传送物理下行链路控制信道（PDCCH）的处理电路。 UE包括被配置为与BS通信的多个天线。 UE还包括耦合到多个天线并被配置为从BS接收PDCCH的处理电路。 PDCCH包含在一个或多个发射（Tx）波束中。 Tx波束由通过Tx波束发送的小区特定参考信号（CRS）定义。 Tx波束被配置为承载波束标识符，并且PDCCH被配置为包括用于用户设备的资源分配信息。

    METHOD AND DEVICE FOR IMPLEMENTING DATA TRANSMISSION
    77.
    发明公开
    METHOD AND DEVICE FOR IMPLEMENTING DATA TRANSMISSION 审中-公开
    用于实现数据传输的方法和设备

    公开(公告)号：EP2760149A1

    公开(公告)日：2014-07-30

    申请号：EP12841217.8

    申请日：2012-08-27

    申请人： Huawei Technologies Co., Ltd. ,  David, Mazzarese ,  Ren, Xiaotao

    发明人： DAVID, Mazzarese ,  REN, Xiaotao

    IPC分类号： H04L1/00 ,  H04L27/26

    CPC分类号： H04L5/0073 ,  H04B7/024 ,  H04B7/0456 ,  H04B7/0684 ,  H04J11/0053 ,  H04L5/0035 ,  H04L5/0044 ,  H04L5/0048 ,  H04L5/005 ,  H04L25/03891

    摘要： A method and an apparatus for implementing data transmission are disclosed. In the method and the apparatus according to embodiments of the present invention, a base station maps modulation symbols to resource elements, and sends precoded modulation symbols to a UE, so that the UE can use the reference signal frequency shift information and a mapping rule according to which the modulation symbols are mapped to the REs to complete data demodulation; and compared with an existing muting solution, in the method and the apparatus, all the REs can be used to complete data transmission, thereby avoiding waste of REs, and further improving throughput of service data, and improving spectrum efficiency of a system.

    摘要翻译： 公开了一种实现数据传输的方法和装置。 在根据本发明实施例的方法和装置中，基站将调制符号映射到资源单元，并将预编码后的调制符号发送给UE，使得UE可以使用参考信号频移信息和映射规则 调制符号映射到RE以完成数据解调; 并与现有的静音方案进行比较，在该方法和装置中，可以使用所有的RE完成数据传输，避免了RE的浪费，进一步提高了业务数据的吞吐量，提高了系统的频谱效率。

    SYSTEM AND METHOD FOR CHANNEL ESTIMATION IN A DELAY DIVERSITY WIRELESS COMMUNICATION SYSTEM
    79.
    发明公开
    SYSTEM AND METHOD FOR CHANNEL ESTIMATION IN A DELAY DIVERSITY WIRELESS COMMUNICATION SYSTEM 审中-公开
    SYSTEM AND METHOD FOR信道估计研究延迟分集无线通信系统

    公开(公告)号：EP1886454A4

    公开(公告)日：2014-02-26

    申请号：EP06732907

    申请日：2006-05-08

    申请人： SAMSUNG ELECTRONICS CO LTD

    发明人： KHAN FAROOQ

    IPC分类号： H04L25/03 ,  H04B7/06 ,  H04L27/26

    CPC分类号： H04L27/2601 ,  H04B7/0671 ,  H04B7/0684 ,  H04B7/12 ,  H04L5/0048 ,  H04L25/022 ,  H04L25/0228 ,  H04L25/03955 ,  H04L27/261 ,  H04L27/2647

    摘要： A method of controlling downlink transmissions to a subscriber station capable of communicating with a base station of an orthogonal frequency division multiplexing (OFDM) network. The method comprises the steps of: receiving a first pilot signal from a first base station antenna; receiving a second pilot signal from a second base station antenna; and estimating the channel between the base station and subscriber station based on the received first and second pilot signals. The method also comprises determining a set of OFDM symbol processing parameters based on the step of estimating the channel and transmitting the OFDM symbol processing parameters to the base station. The base station uses the OFDM symbol processing parameters to control the relative gains and the relative delays of OFDM symbols transmitted from the first and second antennas.