APPARATUS AND METHOD FOR CHANNEL-STATE-INFORMATION PILOT DESIGN FOR AN ADVANCED WIRELESS NETWORK
    44.
    发明申请
    APPARATUS AND METHOD FOR CHANNEL-STATE-INFORMATION PILOT DESIGN FOR AN ADVANCED WIRELESS NETWORK 有权
    高级无线网络通道状态信息导航设计的装置和方法

    公开(公告)号:US20130258964A1

    公开(公告)日:2013-10-03

    申请号:US13828530

    申请日:2013-03-14

    Abstract: A base station and mobile station communicate using a multiple input multiple output (MIMO) communication. The base station includes a two dimensional (2D) antenna array comprising a number N of antenna elements configured in a 2D grid. The 2D antenna array is configured to communicate with at least one subscriber station. The base station also includes a controller configured to transmit N channel-state-information reference-signal (CSI-RS) antenna ports (APs) associated with each of the N antenna elements. The subscriber station includes an antenna array configured to communicate with at least one base station. The subscriber station also includes processing circuitry configured receives physical downlink shared channels (PDSCHs) from a 2D active antenna array at the at least one base station. The 2D active antenna array includes a number N antenna elements. The processing circuitry further configured to estimate a full CSI associated with the N antenna elements.

    Abstract translation: 基站和移动台使用多输入多输出(MIMO)通信进行通信。 基站包括二维(2D)天线阵列,其包括以2D网格配置的N个天线元件。 2D天线阵列被配置为与至少一个用户台进行通信。 基站还包括被配置为发送与N个天线元件中的每一个相关联的N个信道状态信息参考信号(CSI-RS)天线端口(AP)的控制器。 用户站包括被配置为与至少一个基站进行通信的天线阵列。 订户站还包括配置为在至少一个基站处从2D有源天线阵列接收物理下行链路共享信道(PDSCH)的处理电路。 2D有源天线阵列包括N个天线元件。 处理电路还被配置为估计与N个天线元件相关联的完整CSI。

    METHODS AND APPARATUS FOR DOWNLINK CONTROL CHANNELS TRANSMISSIONS IN WIRELESS COMMUNICATIONS SYSTEMS
    45.
    发明申请
    METHODS AND APPARATUS FOR DOWNLINK CONTROL CHANNELS TRANSMISSIONS IN WIRELESS COMMUNICATIONS SYSTEMS 有权
    无线通信系统中下行链路控制信道传输的方法与装置

    公开(公告)号:US20130215842A1

    公开(公告)日:2013-08-22

    申请号:US13759807

    申请日:2013-02-05

    Abstract: An antenna port for an extended Physical Downlink Control CHannel (ePDCCH) transmission is determined based on at least an identifier for a leading extended Control Channel Element (eCCE) within the ePDCCH and an identifier for a user equipment (UE) to receive the ePDCCH transmission, and based on whether the ePDCCH transmission is localized or distributed. The determined antenna port is a DeModulation Reference Signal (DMRS) port to which the UE is assigned. Symbols are mapped in sequence to resource elements (REs) and transmitted via the determined antenna port to the UE.

    Abstract translation: 用于扩展物理下行链路控制信道(ePDCCH)传输的天线端口至少基于ePDCCH内的前导扩展控制信道元素(eCCE)的标识符和用于接收ePDCCH传输的用户设备(UE)的标识符来确定 并且基于ePDCCH传输是定位还是分布。 确定的天线端口是分配了UE的去调制参考信号(DMRS)端口。 符号被顺序地映射到资源元素(RE),并通过确定的天线端口发送到UE。

    Method and apparatus for supporting multiple reference signals in OFDMA communication systems

    公开(公告)号:USRE47485E1

    公开(公告)日:2019-07-02

    申请号:US14877458

    申请日:2015-10-07

    Abstract: Methods and apparatuses are described for a Node B to transmit Reference Signals (RS) from multiple antennas to enable User Equipments (UEs) to perform demodulation of received information signals and to estimate Channel Quality Indication (CQI) metrics. To minimize overhead and enable backward compatible operation with legacy systems, RS from a first set of Node B antennas are transmitted in every transmission time interval and substantially over the whole operating BandWidth (BW). RS from a second set of Node B antennas serving for CQI estimation are periodically transmitted, substantially over the whole operating BW, with transmission period informed to UEs through broadcast signaling by the Node B and starting transmission sub-frame determined from the identity of the cell served by the Node B. RS from the second set of antennas, and new RS from the first set of antennas, serving for demodulation of information signals have substantially the same BW as the information signals which can be smaller than the operating BW.

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