UPLINK MIMO TRANSMISSION FROM MOBILE COMMUNICATIONS DEVICES
    21.
    发明申请
    UPLINK MIMO TRANSMISSION FROM MOBILE COMMUNICATIONS DEVICES 有权
    来自移动通信设备的UPLINK MIMO传输

    公开(公告)号:US20110051835A1

    公开(公告)日:2011-03-03

    申请号:US12827626

    申请日:2010-06-30

    IPC分类号: H04B7/02 H04B1/02 H04L27/00

    摘要: A method of uplink transmission from a mobile device having multiple antennas to a base station having multiple antennas includes transmitting in an open-loop single-user MIMO mode when the mobile device is at high speed, transmitting in a closed-loop single-user MIMO mode when the mobile device is at low speed, and, upon request, transmitting in a multi-user collaborative MIMO mode. The method also includes controlling uplink transmissions in a selected one of the open-loop single-user MIMO, the closed-loop single-user MIMO and the multi-user collaborative MIMO modes. Uplink transmissions from the mobile device may be transmitted using multiple antennas of the mobile device. Upon request, the mobile device may switch to transmitting in multi-user collaborative MIMO mode with a subset of the multiple antennas.

    摘要翻译: 从具有多个天线的移动设备到具有多个天线的基站的上行链路传输的方法包括当移动设备处于高速时以开环单用户MIMO模式进行发送,以闭环单用户MIMO 当移动设备处于低速时,并且在请求时以多用户协作MIMO模式进行发送。 该方法还包括在开环单用户MIMO,闭环单用户MIMO和多用户协作MIMO模式中选择的一个中控制上行链路传输。 可以使用移动设备的多个天线来发送来自移动设备的上行链路传输。 根据请求,移动设备可以利用多个天线的子集切换到以多用户协作MIMO模式发送。

    Wireless feedback system and method
    22.
    发明授权
    Wireless feedback system and method 有权
    无线反馈系统及方法

    公开(公告)号:US08189714B2

    公开(公告)日:2012-05-29

    申请号:US12066322

    申请日:2006-05-04

    IPC分类号: H04L27/00

    摘要: A codebook C is provided in a MIMO transmitter as well as a MIMO receiver. The codebook C will include M codewords ci, where i is a unique codeword index for each codeword ci. Each codeword defines weighting factors to apply to the MIMO signals, and may correspond to channel matrices or vectors to apply to the MIMO signals prior to transmission from the respective antennas of the MIMO transmitter. The present invention creates codeword subsets Si for each codeword ci of the codebook C. Each codeword subset Si defines L codewords cj, which are selected from all the codewords ci in the codebook C. The codewords cj in a codeword subset Si are the L codewords in the entire codebook that best correlate with the corresponding codeword ci.

    摘要翻译: 码本C被提供在MIMO发射机以及MIMO接收机中。 码本C将包括M个码字ci,其中i是每个码字ci的唯一码字索引。 每个码字定义了应用于MIMO信号的加权因子,并且可以对应于在从MIMO发射机的各个天线发送之前应用于MIMO信号的信道矩阵或向量。 本发明为码本C的每个码字ci创建码字子集Si。每个码字子集Si定义了从码本C中的所有码字ci中选择的L个码字cj。码字子集Si中的码字cj是L个码字 在整个码本中与相应的码字ci最相关。

    WIRELESS FEEDBACK SYSTEM AND METHOD
    23.
    发明申请
    WIRELESS FEEDBACK SYSTEM AND METHOD 有权
    无线反馈系统及方法

    公开(公告)号:US20090129502A1

    公开(公告)日:2009-05-21

    申请号:US12066322

    申请日:2006-05-04

    IPC分类号: H04L27/00

    摘要: A codebook C is provided in a MIMO transmitter as well as a MIMO receiver. The codebook C will include M codewords ci, where i is a unique codeword index for each codeword ci. Each codeword defines weighting factors to apply to the MIMO signals, and may correspond to channel matrices or vectors to apply to the MIMO signals prior to transmission from the respective antennas of the MIMO transmitter. The present invention creates codeword subsets Si for each codeword ci of the codebook C. Each codeword subset Si defines L codewords cj, which are selected from all the codewords ci in the codebook C. The codewords cj in a codeword subset Si are the L codewords in the entire codebook that best correlate with the corresponding codeword ci.

    摘要翻译: 码本C被提供在MIMO发射机以及MIMO接收机中。 码本C将包括M个码字ci,其中i是每个码字ci的唯一码字索引。 每个码字定义了应用于MIMO信号的加权因子,并且可以对应于在从MIMO发射机的各个天线发送之前应用于MIMO信号的信道矩阵或向量。 本发明为码本C的每个码字ci创建码字子集Si。每个码字子集Si定义了从码本C中的所有码字ci中选择的L个码字cj。码字子集Si中的码字cj是L个码字 在整个码本中与相应的码字ci最相关。

    POWER ALLOCATION IN CLOSED-LOOP DOWNLINK COOPERATIVE MULTIPLE POINT (COMP) TRANSMISSION
    24.
    发明申请
    POWER ALLOCATION IN CLOSED-LOOP DOWNLINK COOPERATIVE MULTIPLE POINT (COMP) TRANSMISSION 审中-公开
    闭环关联功能分配合作多点(COMP)传输

    公开(公告)号:US20120044849A1

    公开(公告)日:2012-02-23

    申请号:US13147000

    申请日:2010-02-02

    IPC分类号: H04W72/04 H04W52/16 H04W4/06

    摘要: Techniques for power allocation among a plurality of network nodes in a communication network for cooperative downlink transmission to a mobile terminal are provided. Cooperative transmission to a mobile terminal is done in a selected one of a plurality of frequency bands allocated for cooperative downlink transmission, wherein each network node has a respective predetermined frequency band transmission power level for each of the plurality of frequency bands allocated for cooperative downlink transmission. Selection of the frequency band on which the mobile terminal will be cooperatively transmitted to is based on channel state information indicative of the channel between the mobile terminal and each of the network nodes and, for each of the frequency bands, the respective plurality of predetermined frequency band transmission power levels corresponding to the plurality of network nodes.

    摘要翻译: 提供了用于向移动终端进行协同下行链路传输的通信网络中的多个网络节点之间的功率分配技术。 在分配用于协同下行链路传输的多个频带中的选定的一个中进行到移动终端的协作传输,其中每个网络节点具有针对分配用于协作下行链路传输的多个频带中的每个频带的相应的预定频带传输功率电平 。 基于指示移动终端和每个网络节点之间的信道的信道状态信息,并且对于频带中的每一个,相应的多个预定频率 对应于多个网络节点的频带发射功率电平。

    WIRELESS FEEDBACK SYSTEM AND METHOD
    26.
    发明申请
    WIRELESS FEEDBACK SYSTEM AND METHOD 有权
    无线反馈系统及方法

    公开(公告)号:US20120219083A1

    公开(公告)日:2012-08-30

    申请号:US13464640

    申请日:2012-05-04

    IPC分类号: H04B7/04 H04L27/28

    摘要: A codebook C is provided in a MIMO transmitter as well as a MIMO receiver. The codebook C will include M codewords ci, where i is a unique codeword index for each codeword ci. Each codeword defines weighting factors to apply to the MIMO signals, and may correspond to channel matrices or vectors to apply to the MIMO signals prior to transmission from the respective antennas of the MIMO transmitter. The present invention creates codeword subsets Sl for each codeword cl of the codebook C. Each codeword subset Sl defines L codewords cj, which are selected from all the codewords ci in the codebook C. The codewords cj in a codeword subset Sl are the L codewords in the entire codebook that best correlate with the corresponding codeword ci.

    摘要翻译: 码本C被提供在MIMO发射机以及MIMO接收机中。 码本C将包括M个码字ci,其中i是每个码字ci的唯一码字索引。 每个码字定义了应用于MIMO信号的加权因子,并且可以对应于在从MIMO发射机的各个天线发送之前应用于MIMO信号的信道矩阵或向量。 本发明为码本C的每个码字cl创建码字子集S1。每个码字子集S1定义从码本C中的所有码字ci中选择的L个码字cj。码字子集S1中的码字cj是L个码字 在整个码本中与相应的码字ci最相关。