METHOD FOR CHANNEL INFORMATION FEEDBACK IN MULTI-ANTENNA SYSTEM, AND TERMINAL

    公开(公告)号:US20190020396A1

    公开(公告)日:2019-01-17

    申请号:US16068748

    申请日:2017-02-10

    CPC classification number: H04B7/0626 H04B7/06 H04B7/063 H04B7/0639

    Abstract: Provided are a method for channel information feedback in a multi-antenna system, and a terminal. The method comprises: a terminal receives CSI-RSs of M ports sent by a base station, and performs estimation according to the CSI-RSs to obtain M-dimensional downlink channel information; the terminal uses a transformation function Fk to perform a linear transformation on the M-dimensional downlink channel information, and obtains Nk-dimensional kth type channels, wherein k is greater than or equal to 1 and less than or equal to K, M≥Nk, and K≥1; the terminal uses a preset Nk-dimensional codebook to respectively perform channel information quantisation on the kth type channels, and determines a corresponding precoding matrix and precoding matrix indicator information (PMIk); the terminal selects S type channels from within K type channels, and feeds index numbers of the selected channels and corresponding PMI back to the base station.

    Routing Lookup Method and Device, and Construction Method for B-tree Structure
    3.
    发明申请
    Routing Lookup Method and Device, and Construction Method for B-tree Structure 有权
    路由查找方法和设备,以及B树结构的构建方法

    公开(公告)号:US20160294693A1

    公开(公告)日:2016-10-06

    申请号:US14917773

    申请日:2014-05-21

    CPC classification number: H04L45/745 H04L45/60 H04L45/748

    Abstract: Provided are a routing lookup method and device, and a method for constructing a B-Tree structure, wherein the device includes a routing lookup algorithm software component, a routing update interface component and a routing lookup hardware component, the routing lookup algorithm software component is configured to execute software calculation for a routing entry and issue an entry update instruction, the routing update interface component is configured to control, after receiving the entry update instruction issued by the routing lookup algorithm software component, a data stream of the routing lookup hardware component according to an actual working state of the routing lookup hardware component, and write an updated entry into a memory of the routing lookup hardware component, and the routing lookup hardware component is configured to respond to a routing lookup request of a hardware system, and return a lookup result matched with a longest prefix to the hardware system.

    Abstract translation: 提供了一种路由查找方法和设备,以及一种用于构建B-Tree结构的方法,其中该设备包括路由查找算法软件组件,路由更新接口组件和路由查找硬件组件,路由查找算法软件组件 被配置为对路由条目执行软件计算并发出条目更新指令,所述路由更新接口组件被配置为在路由查找算法软件组件接收到条目更新指令之后控制路由查找硬件组件的数据流 根据所述路由查找硬件组件的实际工作状态,并将更新的条目写入所述路由查找硬件组件的存储器中,并且所述路由查找硬件组件被配置为响应硬件系统的路由查找请求并返回 与硬件系统的最长前缀匹配的查找结果。

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