Media access control for MIMO wireless network
    1.
    发明授权
    Media access control for MIMO wireless network 有权
    MIMO无线网络的媒体访问控制

    公开(公告)号:US08625507B1

    公开(公告)日:2014-01-07

    申请号:US12932801

    申请日:2011-03-07

    IPC分类号: H04W4/00 H04J3/16

    摘要: An apparatus and method for operating a Multiple Input Multiple Output (MIMO)-capable subscriber node are disclosed. In one embodiment, an apparatus includes a MIMO-capable physical layer transceiver and a Medium Access Control (MAC) layer block that measures a received transmission to determine channel conditions. Upon receiving a transmission wherein said channel conditions meet specified conditions, the MAC layer block transmits a message to an access point indicating that the apparatus wants to switch between a non-MIMO mode and a MIMO mode, and upon receiving an acknowledgement, the MAC layer block switches between the non-MIMO mode and the MIMO mode. An apparatus for operating an access node is also disclosed.

    摘要翻译: 公开了一种用于操作多输入多输出(MIMO)能力的用户节点的装置和方法。 在一个实施例中,一种装置包括MIMO能力的物理层收发机和媒体接入控制(MAC)层块,其测量接收到的传输以确定信道状况。 在接收到所述信道条件满足指定条件的传输时,MAC层块向接入点发送指示设备在非MIMO模式和MIMO模式之间切换的消息,并且在接收到确认时,MAC层 在非MIMO模式和MIMO模式之间进行块切换。 还公开了一种用于操作接入节点的装置。

    Media access control for MIMO wireless network
    3.
    发明授权
    Media access control for MIMO wireless network 有权
    MIMO无线网络的媒体访问控制

    公开(公告)号:US07929412B1

    公开(公告)日:2011-04-19

    申请号:US11974848

    申请日:2007-10-16

    IPC分类号: H04J11/00 H04L1/02 H04J3/16

    摘要: An apparatus and method for operating a Multiple Input Multiple Output (MIMO)-capable subscriber node are disclosed. In one embodiment, an apparatus includes a MIMO-capable physical layer transceiver and a Medium Access Control (MAC) layer block that measures a received transmission to determine channel conditions. Upon receiving a transmission wherein said channel conditions meet specified conditions, the MAC layer block requests an access point for permission to switch between a non-MIMO mode and a MIMO mode, and upon receiving permission, the MAC layer block switches between the non-MIMO mode and the MIMO mode. An apparatus for operating an access node is also disclosed.

    摘要翻译: 公开了一种用于操作多输入多输出(MIMO)能力的用户节点的装置和方法。 在一个实施例中,一种装置包括MIMO能力的物理层收发机和媒体接入控制(MAC)层块,其测量接收到的传输以确定信道状况。 在接收到其中所述信道条件满足指定条件的传输时,MAC层块请求接入点以允许在非MIMO模式和MIMO模式之间切换,并且在接收到许可后,MAC层块在非MIMO 模式和MIMO模式。 还公开了一种用于操作接入节点的装置。

    Centralized wireless QoS architecture
    9.
    发明申请
    Centralized wireless QoS architecture 有权
    集中无线QoS架构

    公开(公告)号:US20070171909A1

    公开(公告)日:2007-07-26

    申请号:US11335991

    申请日:2006-01-20

    申请人: David Pignatelli

    发明人: David Pignatelli

    IPC分类号: H04L12/56

    摘要: A QoS mechanism that evaluates congestion in one or more network nodes along the wireless delivery path to optimize the processing priority at the centralized wireless network controller. The QoS mechanism determines an idealized processing time for a given client packet, within a rich set of configurable QoS attributes, for a given defined flow and then adjusts the expectation of delivering the packet based on resource congestion measurements of the wireless infrastructure.

    摘要翻译: 一种评估沿着无线传送路径的一个或多个网络节点拥塞的QoS机制,以优化集中式无线网络控制器处理优先级。 针对给定的定义的流程,QoS机制确定在一组丰富的可配置QoS属性中的给定客户端分组的理想化处理时间,然后基于无线基础设施的资源拥塞测量来调整递送分组的期望。

    OFDM channel identification
    10.
    发明授权
    OFDM channel identification 有权
    OFDM信道识别

    公开(公告)号:US06611551B1

    公开(公告)日:2003-08-26

    申请号:US09234929

    申请日:1999-01-21

    IPC分类号: H03B138

    CPC分类号: H04L25/0226 H04L27/2647

    摘要: A system and method for characterizing a channel used by a digital communication system. In an OFDM system, the number of training symbols used to characterize a channel may be decreased by taking advantage of knowledge of certain channel components, e.g., transmitter and/or receiver digital filters. The number of training symbols used may be less than v, the duration of the impulse response of the overall channel.

    摘要翻译: 一种用于表征数字通信系统使用的信道的系统和方法。 在OFDM系统中,可以通过利用某些信道分量的知识(例如,发射机和/或接收机数字滤波器)来减少用于表征信道的训练符号的数量。 使用的训练符号的数量可以小于v,整个信道的脉冲响应的持续时间。