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    • 7. 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。
    • 9. 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。