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12 条记录 (耗时 0.017 秒)

    CHANNEL COVARIANCE FEEDBACK FOR ENHANCED FD-MIMO
    1.
    发明申请
    CHANNEL COVARIANCE FEEDBACK FOR ENHANCED FD-MIMO 审中-公开

    公开(公告)号：US20190058560A1

    公开(公告)日：2019-02-21

    申请号：US16078434

    申请日：2017-02-17

    申请人： Bo CHEN ,  Chao WEI ,  Liangming WU ,  Neng WANG ,  QUALCOMM Incorporated

    发明人： Bo CHEN ,  Chao WEI ,  Liangming WU ,  Neng WANG

    IPC分类号： H04L5/00 ,  H04W24/08 ,  H04B7/0413 ,  H04W24/10

    摘要： Channel covariance feedback is disclosed for enhanced full-dimension multiple input, multiple output (eFD-MIMO) systems. Channel state information (CSI) reference signal (CSI-RS) feedback operations are implemented using spatial covariance feedback of a covariance estimate. After obtaining a set of orthogonal basis vectors, a user equipment (UE) measures the CSI-RS from a base station and determines the spatial covariance matrix from the signal. The UE may then compress the spatial covariance matrix into a lower-dimension covariance estimate matrix using the orthogonal basis vectors. The lower-dimension matrix along with element-wise quantization allows for feedback of spatial covariance for eFD-MIMO systems without excessive feedback overhead.

    METHOD, DEVICE AND SYSTEM FOR UPDATING SECURITY ALGORITHM OF MOBILE TERMINAL
    3.
    发明申请
    METHOD, DEVICE AND SYSTEM FOR UPDATING SECURITY ALGORITHM OF MOBILE TERMINAL 审中-公开
    用于更新移动终端安全算法的方法，装置和系统

    公开(公告)号：US20120225641A1

    公开(公告)日：2012-09-06

    申请号：US13471644

    申请日：2012-05-15

    申请人： Bo CHEN ,  Fei Ju ,  Lei Yuan ,  Hanling Yang

    发明人： Bo CHEN ,  Fei Ju ,  Lei Yuan ,  Hanling Yang

    IPC分类号： H04W12/08

    CPC分类号： H04L63/20 ,  H04L41/082 ,  H04W4/50 ,  H04W8/245 ,  H04W12/0023 ,  H04W12/06 ,  H04W12/12

    摘要： A method, device and system for updating a security algorithm of a mobile terminal are disclosed in the present invention. The method includes the steps of when a communication connection between a mobile terminal and a network side is established, transmitting a Device Management (DM) request message for obtaining state related information on a designated type to the mobile terminal; receiving the state related information on the designated type returned by the mobile terminal; and obtaining an algorithm identifier corresponding to the state related information and indicating the mobile terminal to update the security algorithm used locally according to the algorithm identifier. It is able to ensure the usage security of mobile terminals according to the present invention.

    摘要翻译： 在本发明中公开了一种用于更新移动终端的安全算法的方法，装置和系统。 该方法包括以下步骤：当建立移动终端和网络侧之间的通信连接时，向移动终端发送用于获得关于指定类型的状态相关信息的设备管理（DM）请求消息; 接收由移动终端返回的指定类型的状态相关信息; 并获得与状态相关信息相对应的算法标识符，并指示移动终端根据算法标识符更新本地使用的安全算法。 能够确保根据本发明的移动终端的使用安全性。

    DATA STORAGE DEVICE AND METHOD FOR ACCESSING FLASH MEMORY
    4.
    发明申请
    DATA STORAGE DEVICE AND METHOD FOR ACCESSING FLASH MEMORY 有权
    数据存储设备和用于访问闪速存储器的方法

    公开(公告)号：US20100217918A1

    公开(公告)日：2010-08-26

    申请号：US12497665

    申请日：2009-07-04

    申请人： Bo CHEN

    发明人： Bo CHEN

    IPC分类号： G06F12/02 ,  G06F12/00

    CPC分类号： G06F12/0246 ,  G06F2212/1044 ,  G06F2212/401 ,  G06F2212/7202

    摘要： The invention provides a method for accessing a flash memory. In one embodiment, the flash memory comprises a plurality of memory units, each of the memory units has a physical address, and an address link table records a mapping relationship between a plurality of logical addresses and a plurality of physical addresses. First, first data to be written to a first logical address is received from a host. Whether the first data is predetermined data is the determined. Whether the first logical address is mapped to a null physical address is then determined according to the address link table. When the first data is the predetermined data and the first logical address is not mapped to the null physical address according to the address link table, the address link table is modified to map the first logical address to the null physical address.

    摘要翻译： 本发明提供了一种访问闪存的方法。 在一个实施例中，闪速存储器包括多个存储器单元，每个存储器单元都具有物理地址，并且地址链接表记录多个逻辑地址与多个物理地址之间的映射关系。 首先，从主机接收到要写入第一逻辑地址的第一数据。 确定第一数据是否为预定数据。 然后根据地址链接表确定第一逻辑地址是否映射到空物理地址。 当第一数据是预定数据，并且第一逻辑地址根据地址链接表未映射到空物理地址时，地址链接表被修改以将第一逻辑地址映射到空物理地址。

    ENHANCED HYBRID CSI-RS FOR FD-MIMO
    6.
    发明申请
    ENHANCED HYBRID CSI-RS FOR FD-MIMO 审中-公开

    公开(公告)号：US20190036579A1

    公开(公告)日：2019-01-31

    申请号：US16077272

    申请日：2017-03-10

    申请人： Chao WEI ,  Bo CHEN ,  Liangming WU ,  Jilei HOU ,  QUALCOMM Incorporated

    发明人： Chao WEI ,  Bo CHEN ,  Liangming WU ,  Jilei HOU

    IPC分类号： H04B7/0456 ,  H04B7/06 ,  H04L5/00

    摘要： Enhanced hybrid channel state information (CSI) reference signal (CSI-RS) for full dimension multiple input, multiple output (FD-MIMO) is discussed in which a base station configures a first CSI-RS resource for non-precoded CSI-RS and a second CSI-RS resource for beamformed CSI-RS. The first and second CSI-RS resources are associated with the same CSI process in a hybrid CSI-RS operation. The UE provides a first CSI report including a first rank and precoding matrix indicator (PMI) based on measurement of the non-precoded CSI-RS. The base station may use this first CSI process. CSI report for the beamforming of the beamformed CSI-RS. The UE further provides a second CSI report including a second rank, second PMI, and CQI based on measurement of the beamformed CSI-RS. Additional aspects may provide for a base station to aggregate multiple two-port CSI-RS resource configurations into a single multiport CSI-RS resource configuration that may be dynamically shared between different UEs.

    UPLINK CARRIER SWITCHING FOR WIRELESS DEVICES
    8.
    发明申请
    UPLINK CARRIER SWITCHING FOR WIRELESS DEVICES 有权

    公开(公告)号：US20220386337A1

    公开(公告)日：2022-12-01

    申请号：US17768539

    申请日：2019-11-01

    申请人： Chenxi HAO ,  Yiqing CAO ,  Bo CHEN ,  Peter GAAL ,  Hao XU ,  QUALCOMM INCORPORATED

    发明人： Chenxi HAO ,  Yiqing CAO ,  Bo CHEN ,  Peter GAAL ,  Hao XU

    IPC分类号： H04W72/12

    摘要： Methods, systems, and devices for wireless communications are described. In some cases, a user equipment (UE) may In support multiple component carriers that may be used to transmit uplink transmissions. One carrier may be used at a time such that the may switch between the carriers based on an uplink transmission schedule. In some cases, switching may be limited by a consecutive uplink switching rule or UE capability. In some cases, the gap between two consecutive uplink carrier switching operations may be limited to a resource (e.g., slot, symbol), such that the UE may expect to perform at most one switching operation per resource. In some implementations, the gap between two consecutive uplink carrier switching operations may be limited to a duration (e. g., 14 symbols, 4 symbols), such that the UE may expect to perform at most one switching operation per a duration less than or equal to a threshold.