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    • 2. 发明申请
    • METHOD FOR TRANSMITTING/RECEIVING A COMP REFERENCE SIGNAL
    • 用于发送/接收COMP参考信号的方法
    • WO2011010904A3
    • 2011-06-30
    • PCT/KR2010004880
    • 2010-07-26
    • LG ELECTRONICS INCKOO JA HOHAN SEUNG HEEKO HYUN SOOCHUNG JAE HOONIHM BIN CHULLEE MOON IL
    • KOO JA HOHAN SEUNG HEEKO HYUN SOOCHUNG JAE HOONIHM BIN CHULLEE MOON IL
    • H04L27/26
    • H04L5/0035H04L5/0048H04L25/0226H04L27/2613H04W72/042
    • Disclosed is a method for transmitting a CoMP reference signal for accurate channel estimation. The CoMP reference signal to be transmitted to a terminal which performs a CoMP operation in a multi-cell environment is a cell-specific reference signal or a CoMP-zone-specific reference signal. A method for transmitting the cell-specific reference signal uses an ID of a CoMP set constituted by cells that perform a CoMP operation, or does not apply a frequency shift value while using the ID of a relevant cell, or uses an ID of a serving cell or a frequency shift value of the serving cell. The cell-specific reference signal is transmitted using a preset specific resource region. A method for transmitting the CoMP-zone-specific reference signal is configured such that the pattern of the sequence of CoMP reference signals varies in each of the CoMP zones, and the pattern can be set in advance. In addition, the reference signal is multiplexed and transmitted using an orthogonal code resource in the event the reference signal is transmitted to a plurality of terminals using the same CoMP zone.
    • 公开了一种用于发送用于准确信道估计的CoMP参考信号的方法。 要发送到在多小区环境中执行CoMP操作的终端的CoMP参考信号是小区特定参考信号或CoMP特定区域参考信号。 用于发送小区特定参考信号的方法使用由执行CoMP操作的小区构成的CoMP集合的ID,或者在使用相关小区的ID时不应用频移值,或者使用服务的ID 小区或服务小区的频移值。 使用预设的特定资源区域发送小区特定参考信号。 配置用于发送CoMP区专用参考信号的方法被配置为使得CoMP参考信号序列的模式在每个CoMP区域中变化,并且可以预先设置模式。 此外,在使用相同的CoMP区域将参考信号发送到多个终端的情况下,使用正交码资源来复用和发送参考信号。
    • 6. 发明申请
    • METHOD FOR TRANSMITTING A REFERENCE SIGNAL IN A DOWNLINK MIMO SYSTEM
    • 在下行链路MIMO系统中发送参考信号的方法
    • WO2010104321A3
    • 2010-12-16
    • PCT/KR2010001474
    • 2010-03-09
    • LG ELECTRONICS INCLEE MOON ILKOO JA HOCHUNG JAE HOONIHM BIN CHULKO HYUN SOO
    • LEE MOON ILKOO JA HOCHUNG JAE HOONIHM BIN CHULKO HYUN SOO
    • H04B7/06H04L27/26
    • H04B7/0413
    • The present invention relates to a method for transmitting a CRS (Common Reference Signal) for channel measurement in a downlink MIMO (Multi Input Multi Output) system which supports first user equipment that supports N transmitting antennas from among M transmitting antennas in total, and second user equipment that supports said M (wherein, M>N) transmitting antennas. The method comprises: a step in which a base station maps the CRS (Common Reference Signal) for said M transmitting antennas to a RE (Resource Element) of a subframe; and a step in which the base station transmits the subframe. The position of the RE to which the CRS for said M transmitting antennas is mapped in the subframe falls within the random even-numbered REs which are consecutively arranged in a frequency domain, excluding the RE to which a DRS (dedicated reference signal) for the first user equipment is mapped.
    • 本发明涉及一种用于在支持总共M个发射天线中的支持N个发射天线的第一用户设备的下行链路MIMO(多输入多输出)系统中用于信道测量的CRS(公共参考信号)的方法,并且第二 支持所述M个(其中M> N个)发射天线的用户设备。 该方法包括:基站将所述M个发射天线的CRS(公共参考信号)映射到子帧的RE(资源元素)的步骤; 以及基站发送该子帧的步骤。 所述M个发射天线的CRS在该子帧中映射到的RE的位置落入在频域中连续排列的随机偶数RE内,除了DRS(专用基准信号)用于 第一个用户设备被映射。
    • 7. 发明申请
    • METHOD FOR PILOT SYMBOL TRANSMISSION IN DOWNLINK MIMO SYSTEM
    • 下行MIMO系统中的引导符号传输方法
    • WO2010038999A3
    • 2010-06-24
    • PCT/KR2009005646
    • 2009-10-01
    • LG ELECTRONICS INCLEE MOON ILHAN SEUNG HEEKOO JA HOKO HYUN SOOCHUNG JAE HOONIHM BIN CHUL
    • LEE MOON ILHAN SEUNG HEEKOO JA HOKO HYUN SOOCHUNG JAE HOONIHM BIN CHUL
    • H04B7/04H04L27/26H04W16/24H04W48/12
    • H04W48/12H04B7/0413H04L5/0023H04L5/0037H04L5/005H04L5/0051
    • The present invention relates to a method for transmitting a pilot signal in a downlink MIMO (Multi Input Multi Output) system that supports a first UE (User Equipment) supporting N number of transmission antennae out of a total of M transmission antennae and supports a second UE supporting said M (M > N) number of transmission antennae. Said method comprises a step wherein a pilot symbol is placed as an image in the resource block (RB) region on a subframe that enables the transmission of a user-specific pilot symbol to said second UE in a base station; and a step wherein the subframe whereon said pilot symbol has been placed as an image is transmitted, wherein said RB region includes a first region and a second region, and the first region and second region each include a certain number of continuous OFDM symbols on a respective time axis, and on said first region is placed as an image a cell-specific pilot symbol with respect to the transmission antenna ports 0 to N-1 that can recognize both said first UE and said second UE, and on said second region is placed as an image a user-specific pilot symbol with respect to the transmission antenna ports 0 to M that can recognize said UE only.
    • 本发明涉及一种用于在支持在总共M个传输天线中支持N个发射天线的第一UE(用户设备)的下行链路MIMO(多输入多输出))系统中发送导频信号的方法,并且支持第二 UE支持所述M(M> N)个发射天线。 所述方法包括一个步骤,其中导频符号作为图像被放置在能够在基站中向所述第二UE发送用户专用导频符号的子帧上的资源块(RB)区域中; 并且发送其中所述导频符号已被放置为图像的子帧的步骤,其中所述RB区域包括第一区域和第二区域,并且所述第一区域和第二区域各自包括一定数量的连续OFDM符号 相对于能够识别所述第一UE和所述第二UE的发送天线端口0至N-1,并且在所述第一区域上将所述第一区域作为图像放置为小区特定导频符号,并且在所述第二区域 作为图像被放置为相对于仅能识别所述UE的发送天线端口0至M的用户特定导频符号。
    • 8. 发明申请
    • METHOD AND APPARATUS FOR TRANSMITTING DOWNLINK SIGNAL IN A MIMO WIRELESS COMMUNICAITON SYSTEM
    • 用于在MIMO无线通信系统中发送下行信号的方法和装置
    • WO2011031019A2
    • 2011-03-17
    • PCT/KR2010005625
    • 2010-08-24
    • LG ELECTRONICS INCKO HYUN SOOLEE MOON ILKOO JA HOCHUNG JAE HOONIHM BIN CHUL
    • KO HYUN SOOLEE MOON ILKOO JA HOCHUNG JAE HOONIHM BIN CHUL
    • H04B7/04
    • H04W72/042H04B7/04H04B7/0413H04W88/02H04W88/08
    • A method and apparatus for transmitting a downlink signal in a multiple input multiple output (MIMO) wireless communication system is disclosed. A method for receiving a downlink signal from a base station to a user equipment in a multiple input multiple output (MIMO) system, which supports dual layer transmission based on first and second antenna ports, comprises receiving downlink control information (DCI) through a downlink control channel; and receiving downlink data through a downlink data channel, the downlink data including one or more of a first transport block and a second transport block, wherein the downlink control information includes a new data indicator (NDI) for each of the first and second transport blocks, and if the first transport block is disabled and the second transport block is enabled, the new data indicator for the first transport block indicates an antenna port through which the second transport block is received.
    • 公开了一种用于在多输入多输出(MIMO)无线通信系统中发送下行链路信号的方法和装置。 一种用于在支持基于第一和第二天线端口的双层传输的多输入多输出(MIMO)系统中从基站向用户设备接收下行链路信号的方法包括通过下行链路接收下行链路控制信息(DCI) 控制通道; 并且通过下行链路数据信道接收下行链路数据,所述下行链路数据包括第一传输块和第二传输块中的一个或多个,其中所述下行链路控制信息包括用于所述第一和第二传输块中的每一个的新数据指示符(NDI) ,并且如果第一传输块被禁用并且第二传输块被使能,则用于第一传输块的新数据指示符指示接收第二传输块的天线端口。