METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING A REFERENCE SIGNAL IN A WIRELESS COMMUNICATION SYSTEM
    1.
    发明申请
    METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING A REFERENCE SIGNAL IN A WIRELESS COMMUNICATION SYSTEM 有权
    用于在无线通信系统中发送/接收参考信号的方法和装置

    公开(公告)号:US20110044250A1

    公开(公告)日:2011-02-24

    申请号:US12862389

    申请日:2010-08-24

    IPC分类号: H04W40/00

    摘要: A method and apparatus for transmitting/receiving reference signals in Long Term Evolution (LTE) and LTE-Advanced (LTE-A) systems includes determining whether a dedicated reference signal is detected in a current subframe; estimating, if a dedicated reference signal is detected in the current subframe, a data channel using the dedicated reference signal to receive data; and estimating, if no dedicated reference signal is detected in the current subframe, a data channel using a common reference signal detected in the current subframe to receive data. The transmission scheme uses a DeModulation Reference Signal (DM-RS) for channel response estimation. To secure backward compatibility of the LTE-A system, a Common Reference Signal is transmitted in normal subframes.

    摘要翻译: 一种用于在长期演进(LTE)和LTE高级(LTE-A)系统中发送/接收参考信号的方法和装置,包括确定在当前子帧中是否检测到专用参考信号; 如果在当前子帧中检测到专用参考信号,则估计使用专用参考信号接收数据的数据信道; 以及如果在当前子帧中没有检测到专用参考信号,则估计使用当前子帧中检测到的公共参考信号的数据信道来接收数据。 传输方案使用解调参考信号(DM-RS)进行信道响应估计。 为了确保LTE-A系统的向后兼容性,在普通子帧中传送公共参考信号。

    METHOD AND APPARATUS FOR TRANSMITTING CSI-RS AND DATA USING PARTIAL MUTING OF CSI-RS
    4.
    发明申请
    METHOD AND APPARATUS FOR TRANSMITTING CSI-RS AND DATA USING PARTIAL MUTING OF CSI-RS 有权
    用CSI-RS发送CSI-RS和数据的方法和装置

    公开(公告)号:US20110305295A1

    公开(公告)日:2011-12-15

    申请号:US13156685

    申请日:2011-06-09

    IPC分类号: H04L27/00

    摘要: A method and apparatus for transmitting Channel State Information Reference Symbol (CSI-RS) and data with partial muting of the CSI-RS are proposed. The method includes determining a CSI-RS pattern to be used among CSI-RS pattern candidates, determining a muting pattern for muting some resource elements constituting CSI-RS pattern candidates except for the determined CSI-RS pattern, mapping data symbols and CSI-RS to resource elements in a resource grid with rate patching in consideration of the CSI-RS pattern and muting pattern, and transmitting the data symbols and CSI-RS to a terminal.

    摘要翻译: 提出了一种用于发送信道状态信息参考符号(CSI-RS)的方法和装置以及具有CSI-RS的部分静噪的数据。 该方法包括确定在CSI-RS模式候选中要使用的CSI-RS模式,确定用于使构成除了确定的CSI-RS模式之外的CSI-RS模式候选的一些资源元素静噪的静噪模式,映射数据符号和CSI-RS 考虑到CSI-RS模式和静噪模式,利用速率修补的资源网格中的资源元素,并将数据符号和CSI-RS发送到终端。

    METHOD AND APPARATUS FOR DOWNLINK TRANSMISSION BASED ON MIMO PRECODING IN WIRELESS COMMUNICATION SYSTEM EMPLOYING DISTRIBUTED ANTENNA SYSTEMS
    5.
    发明申请
    METHOD AND APPARATUS FOR DOWNLINK TRANSMISSION BASED ON MIMO PRECODING IN WIRELESS COMMUNICATION SYSTEM EMPLOYING DISTRIBUTED ANTENNA SYSTEMS 有权
    基于分布式天线系统的无线通信系统中基于MIMO预测的下行链路传输的方法和装置

    公开(公告)号:US20120207145A1

    公开(公告)日:2012-08-16

    申请号:US13371935

    申请日:2012-02-13

    IPC分类号: H04B7/216 H04W8/00

    摘要: A transmission method and apparatus utilizing Multiple-Input and Multiple-Output (MIMO) precoding based on Distributed Antenna Systems (DASs) are provided. The transmission method includes determining active antenna ports, for a User Equipment (UE) having multiple receive antennas, from among a plurality of Distributed Antenna Ports (DAPs) evenly placed in a service area; assigning a Multiple-Input and Multiple-Output (MIMO) mode to the UE and notifying the UE of the MIMO mode assignment; determining a signal precoding vector on a basis of feedback information for the MIMO mode received from the UE; and precoding a signal using the signal precoding vector and transmitting the precoded signal through the active antenna ports.

    摘要翻译: 提供了一种利用基于分布式天线系统(DAS)的多输入多输出(MIMO)预编码的传输方法和装置。 传输方法包括从均匀放置在服务区域中的多个分布式天线端口(DAP)中确定用于具有多个接收天线的用户设备(UE)的有源天线端口; 向所述UE分配多输入多输出(MIMO)模式,并向所述UE通知所述MIMO模式分配; 基于从UE接收的MIMO模式的反馈信息,确定信号预编码矢量; 并使用信号预编码矢量对信号进行预编码,并通过有源天线端口发送预编码信号。

    METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING DATA
    7.
    发明申请
    METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING DATA 有权
    用于发送和接收数据的方法和装置

    公开(公告)号:US20120087321A1

    公开(公告)日:2012-04-12

    申请号:US13267402

    申请日:2011-10-06

    IPC分类号: H04W72/04 H04W24/00

    摘要: A transmission scheme newly adds a Demodulation Reference Signal (DM-RS) to estimate a channel response for demodulation. When a transmission scheme based on Long Term Evolution Common Reference Signal (LTE CRS) is set in a user, a corresponding user cannot receive data in a Multimedia Broadcast Multicast Service Single Frequency Network (MBSFN) sub-frame. To solve this problem, the present scheme separates and sets a transmission mode for sub-frame and a transmission mode for MBSFN.

    摘要翻译: 传输方案新增加解调参考信号(DM-RS)以估计用于解调的信道响应。 当在用户中设置基于长期演进公共参考信号(LTE CRS)的传输方案时,相应的用户不能在多媒体广播多播服务单频网络(MBSFN)子帧中接收数据。 为了解决这个问题,本方案分离并设置用于子帧的传输模式和用于MBSFN的传输模式。

    APPARATUS AND METHODS OF ENHANCERS FOR LOW POWER NODES IN WIRELESS COMMUNICATION
    9.
    发明申请
    APPARATUS AND METHODS OF ENHANCERS FOR LOW POWER NODES IN WIRELESS COMMUNICATION 有权
    无线通信中低功率增强器的装置和方法

    公开(公告)号:US20120040683A1

    公开(公告)日:2012-02-16

    申请号:US13208790

    申请日:2011-08-12

    IPC分类号: H04W72/04

    CPC分类号: H04W16/14 Y02D70/00

    摘要: An apparatus and method of communicating with a first plurality of nodes and a second plurality of nodes in wireless communication systems are provided. The apparatus includes a communication unit for receiving node information from the first plurality of nodes, and a controller for generating joint resource information based on the node information received from the first plurality of nodes, wherein the communication unit sends the joint resource information to the second plurality of nodes.

    摘要翻译: 提供了一种与无线通信系统中的第一多个节点和第二多个节点通信的装置和方法。 该装置包括:用于从第一多个节点接收节点信息的通信单元和基于从第一多个节点接收的节点信息生成联合资源信息的控制器,其中通信单元向第二个节点发送联合资源信息 多个节点。