Method and device for transmitting reference signal in wireless communication system
    102.
    发明授权
    Method and device for transmitting reference signal in wireless communication system 有权
    用于在无线通信系统中发送参考信号的方法和装置

    公开(公告)号:US09179464B2

    公开(公告)日:2015-11-03

    申请号:US13642498

    申请日:2011-04-20

    IPC分类号: H04W72/04 H04L5/00 H04L27/26

    摘要: A method and device for transmitting a reference signal in a wireless communication system is provided. A base station maps each demodulation reference signal (DMRS) of each of a plurality of layers into a first resource element (RE) set and a second RE set including four REs over four orthogonal frequency division multiplexing (OFDM) symbols within a subframe, allocates first orthogonal cover codes (OCCs) having a length of 4 to each DMRS mapped into the first RE set, allocates second OCCs having a length of 4 to each DMRS mapped into the second resource element set and transmits each DMRS mapped into the first RE set and the second RE set. The subframe includes two slots and each slot includes six OFDM symbols. The second OCC are formed by swapping positions of bits that constitute the first OCCs.

    摘要翻译: 提供了一种在无线通信系统中发送参考信号的方法和装置。 基站将多个层中的每一层的每个解调参考信号(DMRS)映射到第一资源单元(RE)集合中,并且在子帧内的四个正交频分复用(OFDM)符号上包括四个RE的第二RE集合分配 向映射到第一RE集合的每个DMRS的长度为4的第一正交覆盖码(OCC)向映射到第二资源元素集合的每个DMRS分配具有长度为4的第二OCC,并将映射到第一RE集合中的每个DMRS 和第二RE集。 子帧包括两个时隙,每个时隙包括六个OFDM符号。 第二个OCC通过交换构成第一个OCC的位的位置来形成。

    Apparatus and method for transmitting reference signals in wireless communication system
    104.
    发明授权
    Apparatus and method for transmitting reference signals in wireless communication system 有权
    在无线通信系统中传输参考信号的装置和方法

    公开(公告)号:US09048976B2

    公开(公告)日:2015-06-02

    申请号:US13379635

    申请日:2010-06-21

    IPC分类号: H04W4/00 H04L5/00 H04J13/00

    摘要: Provided are a method and apparatus for transmitting reference signals in a wireless communication system. A first set of reference signals and a second set of reference signals are generated and mapped to a first resource block (RB) in accordance with a first reference signal pattern and a second RB which is close to the first RB in accordance with a second reference signal pattern. The first RB and the second RB are transmitted from a base station to user equipment. Each of the first reference signal pattern and the second reference signal pattern is formed of one sub-frame and on RB unit. In addition, resource elements (Rs) to which the first set of reference signals and the second set of reference signals are respectively mapped in accordance with the second reference signal pattern are REs to which the second set of reference signals and the first set of reference signals are respectively mapped in accordance with the first reference signal pattern.

    摘要翻译: 提供一种用于在无线通信系统中发送参考信号的方法和装置。 生成第一组参考信号和第二组参考信号,并根据第一参考信号模式将其映射到第一资源块(RB),并且根据第二参考将其映射到靠近第一RB的第二RB 信号模式。 第一RB和第二RB从基站发送到用户设备。 第一参考信号图案和第二参考信号图案中的每一个由一个子帧和RB单元形成。 此外,根据第二参考信号模式分别映射第一组参考信号和参考信号的第二组的资源元素(Rs)是第二组参考信号和第一参考集合的RE 根据第一参考信号模式分别映射信号。

    Method for transmitting/receiving a comp reference signal
    105.
    发明授权
    Method for transmitting/receiving a comp reference signal 有权
    用于发送/接收comp参考信号的方法

    公开(公告)号:US09014108B2

    公开(公告)日:2015-04-21

    申请号:US13386384

    申请日:2010-07-26

    摘要: Disclosed is a method for transmitting a CoMP reference signal for accurate channel estimation. The CoMP reference signal is a cell-specific reference signal or a CoMP-zone-specific reference signal. A method for transmitting the cell-specific reference signal uses a CoMP set ID or does not apply a frequency shift value, or uses a serving cell ID or a frequency shift value of the serving cell. The cell-specific reference signal is transmitted using a preset 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. The reference signal is multiplexed using an orthogonal code and transmitted to plural terminals using the same CoMP zone.

    摘要翻译: 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。 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CoMP集合ID或不应用频移值,或者使用服务小区的服务小区ID或频移值。 使用预设的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。 使用正交码对参考信号进行复用,并使用相同的CoMP区域发送到多个终端。

    Method and apparatus for transmitting a reference signal in a multi-antenna system
    107.
    发明授权
    Method and apparatus for transmitting a reference signal in a multi-antenna system 有权
    用于在多天线系统中发送参考信号的方法和装置

    公开(公告)号:US08902849B2

    公开(公告)日:2014-12-02

    申请号:US13496365

    申请日:2010-09-16

    摘要: Provided are a method and apparatus for transmitting a reference signal in a multi-antenna system. A terminal generates a plurality of reference signal sequences in which cyclic shift values different from each other are allocated to the respective plurality of layers, and generates a single carrier-frequency division multiple access (SC-FDMA) symbol to which the plurality of reference signal sequences are mapped. The SC-FDMA symbol is transmitted to a base station via a plurality of antennas. The cyclic shift values allocated to the respective layers are determined on the basis of a first cyclic shift value, which is a cyclic shift value allocated to a first layer from among the plurality of layers, and cyclic shift offsets which are allocated to the respective layers and which are different from each other.

    摘要翻译: 提供了一种用于在多天线系统中发送参考信号的方法和装置。 终端产生多个参考信号序列,其中相互不同的循环移位值分配给相应的多个层,并且生成单个载波频分多址(SC-FDMA)符号,多个参考信号 序列被映射。 SC-FDMA符号经由多个天线被发送到基站。 基于分配给多个层中的第一层的循环移位值的第一循环移位值和分配给各个层的循环移位偏移来确定分配给各层的循环移位值 并且彼此不同。

    Method and device for providing control information for uplink transmission in wireless communication system supporting uplink multi-antenna transmission
    110.
    发明授权
    Method and device for providing control information for uplink transmission in wireless communication system supporting uplink multi-antenna transmission 有权
    用于在支持上行链路多天线传输的无线通信系统中提供用于上行链路传输的控制信息的方法和装置

    公开(公告)号:US08848672B2

    公开(公告)日:2014-09-30

    申请号:US13580357

    申请日:2011-02-23

    摘要: The present invention relates to a wireless communication system, and more particularly, a method and device providing control information for uplink transmission in a wireless communication system supporting uplink multi-antenna transmission. An uplink multi-antenna transmission scheduling method, according to one embodiment of the present invention, comprises the following steps: creating downlink control information (DCI), which includes precoding information showing a transmission rank and a precoding matrix of an uplink transmission; transmitting said created downlink control information, which schedules the transmission of an uplink, through a downlink control channel; and receiving said uplink transmission, which is scheduled according to said downlink control information, through an uplink data channel, wherein the size of said precoding information can be determined with respect to the available number of precoding matrices, according to the number of said multi-antennas and uplink transmission rank.

    摘要翻译: 无线通信系统技术领域本发明涉及一种无线通信系统,更具体地,涉及在支持上行链路多天线发送的无线通信系统中提供用于上行链路传输的控制信息的方法和装置。 根据本发明的一个实施例的上行链路多天线传输调度方法包括以下步骤:创建下行链路控制信息(DCI),其包括表示上行链路传输的传输秩和预编码矩阵的预编码信息; 通过下行链路控制信道发送所述创建的下行链路控制信息,其调度上行链路的传输; 以及根据所述下行链路控制信息调度的所述上行链路传输通过上行链路数据信道,其中可以根据所述多个预编码矩阵的数量相对于可用数量的预编码矩阵来确定所述预编码信息的大小, 天线和上行传输等级。