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    • 6. 发明申请
    • METHOD OF TRANSMITTING FEEDBACK INFORMATION IN A MIMO COMMUNICATION SYSTEM AND DEVICE THEREOF
    • 在MIMO通信系统中传送反馈信息的方法及其装置
    • WO2012020310A3
    • 2012-04-05
    • PCT/IB2011002065
    • 2011-07-27
    • ALCATEL LUCENTLIU HAO
    • LIU HAO
    • H04B7/04H04B7/06
    • H04B7/0478H04B7/0417H04B7/0641H04B7/065
    • The present invention provides a method of providing feedback information in a user equipment of a communication system based on MIMO, comprising: determining a first latest measured long-term covariance matrix according to a downlink channel matrix model; transmitting the quantization of a first latest estimated long-term covariance matrix corresponding to the first latest measured long-term covariance matrix to the base station; determining a second latest measured long-term covariance matrix according to a downlink channel matrix model; determining the variation information of a second latest estimated long-term covariance matrix with respect to an estimated long-term covariance matrix of the last-time reset point; and transmitting the quantization of the variation information to the base station. With such a solution, overhead during the feedback of long-term covariance matrix is greatly reduced in MIMO scenario.
    • 本发明提供了一种在基于MIMO的通信系统的用户设备中提供反馈信息的方法,包括:根据下行信道矩阵模型确定第一最新测量的长期协方差矩阵; 将对应于所述第一最近测量的长期协方差矩阵的第一最新估计的长期协方差矩阵的量化发送到所述基站; 根据下行链路信道矩阵模型确定第二最新测量的长期协方差矩阵; 确定第二最新估计的长期协方差矩阵相对于最后一次重置点的估计的长期协方差矩阵的变化信息; 并且将变化信息的量化发送到基站。 采用这种解决方案,在MIMO情况下,长期协方差矩阵反馈期间的开销大大降低。
    • 9. 发明申请
    • TRIPOD HEAD WITH FOLDING HANDLE
    • 三折头与折叠手柄
    • WO2011056498A2
    • 2011-05-12
    • PCT/US2010053926
    • 2010-10-25
    • MAMIYA AMERICA CORPLIU HAOROSE ROBERT M
    • LIU HAOROSE ROBERT M
    • F16M11/18F16M11/06F16M11/14G03B17/56
    • G03B17/563F16M11/08F16M11/18F16M11/2071
    • A tripod head comprises a mount and an angle adjustment mechanism for adjusting and locking the angle of the mount with respect to a tripod. The mechanism comprises an elongated handle. The handle is adapted to rotate around its longitudinal axis to lock the angle of the mechanism when rotated in one direction and unlock the angle of the mechanism when rotated in the other direction. The handle comprises a proximal portion and a distal portion. The distal portion is attached at a pivot point whereby the distal portion can pivot between an operative position in line with the proximal portion and a storage position generally perpendicular to the proximal portion. The handle further comprises a locking device for releasably locking the distal portion in the operative position.
    • 三脚架头包括安装件和角度调节机构,用于调节和锁定安装座相对于三脚架的角度。 该机构包括细长手柄。 手柄适于围绕其纵向轴线旋转以锁定机构在一个方向上旋转时的角度,并且在沿另一方向旋转时解锁机构的角度。 手柄包括近端部分和远端部分。 远端部分附接在枢转点处,由此远侧部分可以在与近端部分成直线的操作位置和大致垂直于近端部分的存储位置之间枢转。 手柄还包括用于将远端部分可释放地锁定在操作位置的锁定装置。