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    • 13. 发明申请
    • PILOT SENDING METHOD AND APPARATUS
    • 飞行发送方法和装置
    • US20120236909A1
    • 2012-09-20
    • US13481412
    • 2012-05-25
    • Jie MAChuanfeng HEHuan ZHOULiang XIAYue LI
    • Jie MAChuanfeng HEHuan ZHOULiang XIAYue LI
    • H04B1/707
    • H04B7/0413H04L5/0051H04L25/03904H04L25/03949H04L25/03974
    • Embodiments of the present invention provide a pilot sending method and an apparatus, which relate to the communication field and can save network resources. The solution is: performing spreading on at least two signature sequences by using a spreading code, where each signature sequence of the at least two signature sequences corresponds to at least one user equipment (UE), and is used as a dedicated pilot of at least one data stream of the at least one UE, and the dedicated pilot is used by the UE to perform precoding matrix estimation; and performing precoding on the spread signature sequences, and sending the precoded spread signature sequences to the UE. The embodiments of the present invention are applicable to the sending of pilots in MU-MIMO.
    • 本发明的实施例提供了一种与通信领域相关并且可以节省网络资源的导频发送方法和装置。 解决方案是:通过使用扩展码在至少两个签名序列上执行扩展,其中至少两个签名序列的每个签名序列对应于至少一个用户设备(UE),并且被用作至少一个专用导频 所述至少一个UE的一个数据流和所述专用导频由所述UE用于执行预编码矩阵估计; 对扩展签名序列执行预编码,并向UE发送预编码的扩展签名序列。 本发明的实施例可应用于在MU-MIMO中发送导频。
    • 18. 发明申请
    • MOTOR
    • 发动机
    • US20100295404A1
    • 2010-11-25
    • US12784248
    • 2010-05-20
    • Yue LIBao Ting LiuJi Dong Chai
    • Yue LIBao Ting LiuJi Dong Chai
    • H02K23/64
    • H02K23/08H02K3/28H02K23/26H02K23/64H02K27/04
    • A motor comprises: a stator having a stator core and field windings; brush gear including a plurality of brushes, a rotor comprising a shaft, a rotor core fixed to the shaft, a commutator fixed to the shaft adjacent the rotor core and rotor windings wound about teeth of the rotor core and connected to the commutator. The stator core comprises a yoke, 2P primary poles about which the field windings are wound, and 2P auxiliary poles. A control device controls the electrical connecting state of the field windings and the brushes so that 2P or 4P magnetic poles are selectively formed on the stator when the field windings are electrified. P is an integer equal to or greater than 1.
    • 电动机包括:具有定子铁芯和励磁绕组的定子; 包括多个电刷的转子,包括轴的转子,固定在轴上的转子芯,与转子芯相邻的固定在轴上的换向器,以及缠绕在转子芯上的齿并连接到换向器的转子绕组。 定子铁心包括磁轭,励磁绕组围绕其缠绕的2P主极和2P辅助极。 控制装置控制励磁绕组和电刷的电连接状态,使得当励磁绕组通电时,在定子上选择性地形成2P或4P磁极。 P是等于或大于1的整数。