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    • 2. 发明授权
    • Metal spring anchor for advanced packaging
    • US11626312B2
    • 2023-04-11
    • US16987240
    • 2020-08-06
    • Dong LiGe Yi
    • Dong LiGe Yi
    • H01L21/687H01L21/68H01L21/673H01L21/67
    • An Fan-out packaging system, comprising dedicated frame with associated movable metallic spring feature(s) for incoming known-good-die (KGD), is invented. The movable spring anchor(s) along with the boundaries of the frame locks the KGD in its designated position during EMC implementation and subsequent processes. In this system/approach, the position accuracy of KGDs during the wafer reconstitution process will be mostly dominated by the dicing accuracy. The proposed system is a very low cost approach as it does not need the expensive software/tool set and does not have a low throughput site-to-site lithography correction during exposure after metrology is carried out for every flash field. This system is particularly useful for chiplet consisting of component chips from different technologies and from substrate made of different material. The frames can be further used as part of function component for the packaged system either as electromagnetic shield, or heat dissipation/heat sink, or even RF antenna as well as other passive devices or active components.
    • 4. 发明授权
    • Method and apparatus for MIMO-based multiple base station collaborative communication
    • 用于基于MIMO的多基站协作通信的方法和装置
    • US09071291B2
    • 2015-06-30
    • US13125304
    • 2008-10-31
    • Xiaolong ZhuDong LiYang Song
    • Xiaolong ZhuDong LiYang Song
    • H04W36/00H04B7/02H04W72/12H04L5/00
    • H04B7/024H04L5/0014H04L5/0035H04L5/0094H04W72/1278
    • A solution for multiple base station collaborative communication in TDD (Time Division Duplex) and FDD (Frequency Division Duplex) systems is provided. To be specific, a serving base station and coordinating base station transmit detection signals with specific Multiple Input Multiple Output (MIMO) features on one or more communication resources. The mobile station measures the detection signals on the one or more communication resources and generates indication information of the recommended collaborative communication modes based on the measurement results. Preferably the indexes of the time-frequency resources corresponding to the recommended collaborative communication modes are reported to the serving base station. Then the serving base station schedules at least one of the one or more mobile stations according to the indication information reported by the one or more stations and provides MIMO communication manner for the mobile station scheduled. The coverage of the cells is improved, the cell edge user throughput is increased and the inter-cell interference between neighboring base stations is decreased by exploiting the invention. Preferably the amount of uplink feedback information is decreased and the uplink bandwidth is saved.
    • 提供了TDD(时分双工)和FDD(Frequency Division Duplex)系统中多基站协同通信的解决方案。 具体来说,服务基站和协调基站在一个或多个通信资源上传送具有特定多输入多输出(MIMO)特征的检测信号。 移动站测量一个或多个通信资源上的检测信号,并基于测量结果生成推荐的协作通信模式的指示信息。 优选地,将与推荐的协作通信模式相对应的时间 - 频率资源的索引报告给服务基站。 然后,服务基站根据由一个或多个站报告的指示信息来调度一个或多个移动站中的至少一个,并为调度的移动站提供MIMO通信方式。 改善了小区的覆盖范围,通过利用本发明,增加了小区边缘用户吞吐量并减少了相邻基站之间的小区间干扰。 优选地,上行链路反馈信息的量减少,并且保存上行链路带宽。
    • 5. 发明授权
    • Method and device used for feedback of channel information and precoding
    • 用于信道信息和预编码反馈的方法和设备
    • US08817634B2
    • 2014-08-26
    • US13522084
    • 2010-01-13
    • Jinhui ChenDong Li
    • Jinhui ChenDong Li
    • H04L12/26
    • H04L1/0026H04B7/0417H04B7/0421H04B7/0639H04L1/0028H04L1/06
    • The invention proposes a technical scheme (called as explicit feedback (used for feeding the information of downlink channels back to a base station at the user terminal of a wireless communication system, and a technical scheme for precoding the data transmitted to the user terminal based on the information of downlink channels feed back by the user terminal in the base station. The user terminal determines an approximately equivalent matrix of the transmission matrix of downlink channel, based on the transmission matrix of downlink channel, the number of downlink data streams, the spatial correlation matrix of multiple transmitting antennas in the base station and a predetermined codebook; then feeds the information concerning the approximately equivalent matrix back to the base station. The base station recovers the approximately equivalent matrix based on the information concerning the approximately equivalent matrix fed back from the user terminal, and precodes the downlink data transmitted to the user terminal by using the approximately equivalent matrix.
    • 本发明提出了一种技术方案(被称为显式反馈(用于将下行链路信道的信息反馈给无线通信系统的用户终端处的基站,以及用于对根据用户终端发送的用户终端的数据进行预编码的技术方案) 下行链路信道的信息由基站中的用户终端反馈,用户终端基于下行链路信道的传输矩阵,下行链路数据流的数量,空间的数量来确定下行链路信道的传输矩阵的近似等效矩阵 基站中的多个发射天线的相关矩阵和预定的码本;然后将关于近似等效的矩阵的信息反馈给基站,基站基于从大约等效的矩阵反馈的信息来恢复近似等效的矩阵 用户终端,并对下行链路数据t进行预编码 通过使用近似等效的矩阵发送到用户终端。
    • 9. 发明授权
    • Multipoint control unit cascaded system, communications method and device
    • 多点控制单元级联系统,通信方式和设备
    • US08576273B2
    • 2013-11-05
    • US12973173
    • 2010-12-20
    • Dong LiEnkui Wang
    • Dong LiEnkui Wang
    • H04N7/14
    • H04N7/152H04L65/403H04M3/562H04M3/567
    • A Multipoint Control Unit (MCU) cascaded system is provided, which includes a plurality of MCUs under the management of a service management center. The cascade manner between the MCUs in the system is a reticulated cascade. A communications method for an MCU cascaded system, an MCU, and a service management center are also provided. In the embodiments of the present invention, because the connection and networking mode of MCUs in a cascaded system is changed, a transmission path passing the least MCUs can be selected according to a connection situation between the MCUs. Therefore, transmission delay and decrease of video and audio quality due to multiple forwarding by MCUs can be effectively avoided, and thus the media stream transmission time is reduced, and the play quality of the media stream is guaranteed in an overall manner.
    • 提供了多点控制单元(MCU)级联系统,其中包括在服务管理中心的管理下的多个MCU。 系统中的MCU之间的级联方式是网状级联。 还提供了用于MCU级联系统,MCU和服务管理中心的通信方法。 在本发明的实施例中,由于级联系统中的MCU的连接和联网模式改变,所以可以根据MCU之间的连接情况来选择通过最少MCU的传输路径。 因此,可以有效地避免由于MCU的多次转发而导致的视频和音频质量的传输延迟和降低,从而降低了媒体流传输时间,并且整体地保证了媒体流的播放质量。
    • 10. 发明申请
    • Magnetoresistive random access memory cell with independently operating read and write components
    • 具有独立操作的读写组件的磁阻随机存取存储单元
    • US20130114334A1
    • 2013-05-09
    • US13288860
    • 2011-11-03
    • Ge YiShaoping LiDong LiYunjun TangZongrong Liu
    • Ge YiShaoping LiDong LiYunjun TangZongrong Liu
    • G11C11/15
    • H01L43/08G11C11/16G11C11/161G11C11/1675
    • A new class of the memory cell is proposed. There are two separated pulse data writing and sensing current paths. The in-plane pulse current is used to flip the magnetization direction of the perpendicular-anisotropy data storage layer sandwiched between a heavy metal writing current-carrying layer and a dielectric layer. The magnetization state within data storage layer is detected by the patterned perpendicular-anisotropy tunneling magnetoresistive (TMR) stack via the output potential of the stack. Two detailed memory cells are proposed: in one proposed cell, the data storage layer is independent from but kept close to the sensing TMR stack, whose magnetization orientation affects magnetization configuration within the free layer of the TMR stack, therefor ultimately affects the output potential of the stack; in the other proposed cell, the perpendicular-anisotropy data storage layer is the free layer of the sensing TMR stack, whose magnetization state will directly affect the output potential of the stack when sensing current passes through.
    • 提出了一类新的存储单元。 有两个分离的脉冲数据写入和感测电流路径。 面内脉冲电流用于翻转夹在重金属写入载流层和电介质层之间的垂直各向异性数据存储层的磁化方向。 数据存储层内的磁化状态通过图案化的垂直各向异性隧道磁阻(TMR)堆叠通过堆叠的输出电位来检测。 提出了两个详细的存储单元:在一个提出的单元中,数据存储层独立于但保持靠近感测TMR堆栈,其磁化方向影响TMR堆栈自由层内的磁化配置,从而最终影响 堆栈 在另一个提出的单元中,垂直各向异性数据存储层是感测TMR堆栈的自由层,当感测电流通过时,其磁化状态将直接影响堆叠的输出电位。