METHOD FOR SETTING PRECODER IN OPEN LOOP MIMO SYSTEM
    91.
    发明申请
    METHOD FOR SETTING PRECODER IN OPEN LOOP MIMO SYSTEM 审中-公开
    用于在开环MIMO系统中设置预编码器的方法

    公开(公告)号:US20100278278A1

    公开(公告)日:2010-11-04

    申请号:US12770140

    申请日:2010-04-29

    IPC分类号: H04B7/02

    摘要: A feedback method of a user equipment in an open loop Multiple-Input Multiple-Output (MIMO) system is disclosed. The method includes, receiving one of a plurality of modes determined according to types of resources to be used for performing feedback from a base station, and selecting a precoding matrix from a codebook subset corresponding to the received mode, applying the selected precoding matrix, and transmitting feedback information. Different codebook subsets are configured with respect to the plurality of modes, and the codebook subset is configured by extracting a predetermined number of elements from a base codebook based on a predetermined criterion considering the characteristics of the modes.

    摘要翻译: 公开了一种开环多输入多输出(MIMO)系统中的用户设备的反馈方法。 该方法包括:接收根据要用于从基站执行反馈的资源类型确定的多个模式之一,以及从对应于接收模式的码本子集中选择预编码矩阵,应用所选择的预编码矩阵;以及 发送反馈信息。 针对多个模式配置不同的码本子集,并且通过考虑模式的特征,基于预定标准从基本码本中提取预定数量的元素来配置码本子集。

    TECHNIQUE FOR TRANSMITTING AND RECEIVING DOWNLINK REFERENCE SIGNALS
    92.
    发明申请
    TECHNIQUE FOR TRANSMITTING AND RECEIVING DOWNLINK REFERENCE SIGNALS 有权
    发送和接收下行链路参考信号的技术

    公开(公告)号:US20100195615A1

    公开(公告)日:2010-08-05

    申请号:US12698869

    申请日:2010-02-02

    IPC分类号: H04W72/04

    摘要: A technique for receiving and transmitting downlink reference signals is disclosed. When transmitting downlink data demodulation reference signals (DMRS) (or reference signals for downlink data demodulation) by using two or more layers, the DMRS of each layer may be multiplexed by using a code division multiplexing method and then transmitted. The DMRS for each of the two or more layers may be used for one user equipment or for two or more user equipments. And, downlink control signals for transmitting and receiving such DMRS may be configured to have the same format regardless of a single-user mode (or SU-MIMO mode) or a multi-user mode (or MU-MIMO mode), thereby being used.

    摘要翻译: 公开了一种用于接收和发送下行链路参考信号的技术。 当通过使用两层或更多层来发送下行链路数据解调参考信号(DMRS)(或下行链路数据解调的参考信号)时,可以通过使用码分复用方法来复用每层的DMRS,然后发送。 两层或更多层中的每一层的DMRS可以用于一个用户设备或两个或更多个用户设备。 并且,无论单用户模式(或SU-MIMO模式)还是多用户模式(或MU-MIMO模式),都可以将用于发送和接收这样的DMRS的下行链路控制信号配置为具有相同的格式,从而被使用 。

    Method for transmitting data using phase shift based precoding and transceiver supporting the same
    93.
    发明申请
    Method for transmitting data using phase shift based precoding and transceiver supporting the same 有权
    使用基于相移的预编码发送数据的方法和支持该预编码的收发器

    公开(公告)号:US20100061482A1

    公开(公告)日:2010-03-11

    申请号:US12312255

    申请日:2007-11-02

    IPC分类号: H04L27/20 H04L25/03

    摘要: A method of transmitting data using cyclic delay in a multi-antenna system using a plurality of subcarriers and a transceiver supporting the same are disclosed. More particularly, a method of selecting a matrix (second matrix) for transforming a precoding matrix (first matrix) into a unitary matrix from a codebook by a prescribed reference is disclosed. An index for selecting the second matrix is calculated by a prescribed modulo operation in an open loop system or delivered as feedback information in a closed loop system. Diversity can be obtained by switching each column of the selected second matrix in accordance with time. In a multi-user system, a single second matrix can be determined by combining columns of the second matrix selected by each user.

    摘要翻译: 公开了一种使用多个子载波在多天线系统中使用循环延迟发送数据的方法以及支持其的收发机。 更具体地,公开了一种选择用于将预编码矩阵(第一矩阵)从码本转换为规定参考的酉矩阵的矩阵(第二矩阵)的方法。 用于选择第二矩阵的索引通过在开环系统中的规定的模运算来计算,或者作为闭环系统中的反馈信息递送。 通过根据时间切换所选择的第二矩阵的每列,可以获得分集。 在多用户系统中,可以通过组合由每个用户选择的第二矩阵的列来确定单个第二矩阵。

    Method for transmitting reference signal in downlink multi-input multi-output system
    95.
    发明授权
    Method for transmitting reference signal in downlink multi-input multi-output system 失效
    在下行多输入多输出系统中发送参考信号的方法

    公开(公告)号:US08750402B2

    公开(公告)日:2014-06-10

    申请号:US13145557

    申请日:2010-01-29

    IPC分类号: H04B7/02 H04L1/02

    摘要: Provided is a method for transmitting a reference signal (RS) in a downlink multi-input multi-output (MIMO) system which supports a first user equipment (UE) for supporting N transmission antennas from among a total of M transmitting antennas and a second UE for supporting M transmitting antennas (wherein, M>N). The method comprises the steps of: generating a subframe for simultaneously supporting the first UE and the second UE at a base station; transmitting the subframe; and mapping a common reference signal (CRS) for antenna port 0 to antenna port N−1, mapping a CRS for antenna port N to antenna port M−1, and controlling a power level of a CRS for antenna port 0 to antenna port N−1 and a power level of CRS for antenna port N to antenna port M−1, independently from one another, at the subframe.

    摘要翻译: 提供了一种用于在下行链路多输入多输出(MIMO)系统中发送参考信号(RS)的方法,所述下行链路多输入多输出(MIMO)系统支持从总共M个发送天线中支持N个发送天线的第一用户设备(UE) UE支持M个发射天线(其中,M> N)。 该方法包括以下步骤:生成用于在基站处同时支持第一UE和第二UE的子帧; 发送子帧; 并将天线端口0的公共参考信号(CRS)映射到天线端口N-1,将天线端口N的CRS映射到天线端口M-1,并将天线端口0的CRS的功率电平控制到天线端口N -1,并且天线端口N到天线端口M-1的CRS的功率电平彼此独立,在子帧处。

    TECHNIQUE FOR TRANSMITTING AND RECEIVING DOWNLINK REFERENCE SIGNALS
    96.
    发明申请
    TECHNIQUE FOR TRANSMITTING AND RECEIVING DOWNLINK REFERENCE SIGNALS 有权
    发送和接收下行链路参考信号的技术

    公开(公告)号:US20130279466A9

    公开(公告)日:2013-10-24

    申请号:US12698869

    申请日:2010-02-02

    IPC分类号: H04W72/04

    摘要: A technique for receiving and transmitting downlink reference signals is disclosed. When transmitting downlink data demodulation reference signals (DMRS) (or reference signals for downlink data demodulation) by using two or more layers, the DMRS of each layer may be multiplexed by using a code division multiplexing method and then transmitted. The DMRS for each of the two or more layers may be used for one user equipment or for two or more user equipments. And, downlink control signals for transmitting and receiving such DMRS may be configured to have the same format regardless of a single-user mode (or SU-MIMO mode) or a multi-user mode (or MU-MIMO mode), thereby being used.

    摘要翻译: 公开了一种用于接收和发送下行链路参考信号的技术。 当通过使用两层或更多层来发送下行链路数据解调参考信号(DMRS)(或下行链路数据解调的参考信号)时,可以通过使用码分复用方法来复用每层的DMRS,然后发送。 两层或更多层中的每一层的DMRS可以用于一个用户设备或两个或更多个用户设备。 并且,无论单用户模式(或SU-MIMO模式)还是多用户模式(或MU-MIMO模式),都可以将用于发送和接收这样的DMRS的下行链路控制信号配置为具有相同的格式,从而被使用 。

    Method of transmitting codebook index in wireless communication system
    100.
    发明授权
    Method of transmitting codebook index in wireless communication system 失效
    无线通信系统中码本索引的传输方法

    公开(公告)号:US08781012B2

    公开(公告)日:2014-07-15

    申请号:US12448599

    申请日:2008-03-21

    IPC分类号: H04B7/02 H04L1/02

    摘要: A method of transmitting a codebook index in a wireless communication system includes receiving a feedback index regarding an entity selected from a plurality of entities belonging to a feedback codebook, selecting a precoder from a precoding codebook using the feedback index, the precoding codebook comprising a plurality of precoders and transmitting a precoder index of the selected precoder. Flexibility can be given to codebook designs, and overhead due to the feedback of codebook indices can be reduced.

    摘要翻译: 一种在无线通信系统中发送码本索引的方法包括接收关于从属于反馈码本的多个实体中选择的实体的反馈索引,使用反馈索引从预编码码本中选择预编码器,预编码码本包括多个 并传送所选择的预编码器的预编码器索引。 可以对码本设计提供灵活性,并且可以减少由于码本索引的反馈而导致的开销。