Scheduling algorithms for multi-user (MU) multiple-input multiple-output (MIMO) communication systems
    3.
    发明授权
    Scheduling algorithms for multi-user (MU) multiple-input multiple-output (MIMO) communication systems 有权
    多用户(MU)多输入多输出(MIMO)通信系统的调度算法

    公开(公告)号:US09184810B2

    公开(公告)日:2015-11-10

    申请号:US13465522

    申请日:2012-05-07

    IPC分类号: H04W4/00 H04B7/04 H04W72/12

    摘要: A method is provided for wirelessly transmitting from a transmitter to one or more receivers within a multi-user (MU) multiple-input and multiple-output (MIMO) communication system. A number of concurrent (spatial) streams are dynamically allocated in a MU-MIMO transmission to each of a plurality of served receivers to maximize total data transmitted on each transmission. Streams are allocated according to a corresponding transmission queue length for each receiver and the number of receive antennas used by each of the served receivers. A transmission timer is started upon sending the transmission. A random backoff counter is also started upon one of either: (a) expiration of the transmission timer or (b) receipt of data at a transmission queue. A new transmission is sent upon expiration of the random backoff counter if the transmission timer has expired. Otherwise, the random backoff counter is restarted one or more times until the transmission timer has expired.

    摘要翻译: 提供了一种用于从多用户(MU)多输入(MIMO)通信系统中的发射机向一个或多个接收机进行无线发射的方法。 在MU-MIMO传输中动态地将多个并行(空间)流分配给多个服务接收机中的每一个,以最大化在每个传输上传输的总数据。 流根据每个接收机的相应传输队列长度和每个被服务接收机使用的接收天线的数量来分配。 传送定时器在发送传输时开始。 以下之一也开始随机退避计数器:(a)传输定时器到期或(b)在传输队列处接收数据。 如果发送定时器已经到期,则在随机退避计数器到期时发送新的传输。 否则,随机退避计数器重新启动一次或多次,直到传输定时器到期。

    Network setup in wide channel wireless local area networks (WLANs)
    10.
    发明授权
    Network setup in wide channel wireless local area networks (WLANs) 有权
    广域无线局域网(WLAN)中的网络设置

    公开(公告)号:US09326153B2

    公开(公告)日:2016-04-26

    申请号:US13176648

    申请日:2011-07-05

    IPC分类号: H04W4/00 H04W16/14 H04W16/02

    摘要: Methods and apparatus for network setup in wide channel WLANs are provided. Techniques for co-existence of 20 MHz and 40 MHz networks (e.g., as defined by IEEE 802.11n) may be extended to 80 MHz and 160 MHz networks. For example, a primary channel of an existing network may be designated as the primary channel of a new network. Further, a primary channel of the existing network may not be used as a secondary channel in the new network. Intolerance operation between networks may include a first network releasing one or more channels in response to an intolerance indication received from a second network. Furthermore, in response to the intolerance indication from the second network, the first network may utilize one or more channels for communicating in the first network using a first set of access parameters. The access parameters may depend on the intolerance indication.

    摘要翻译: 提供了广域WLAN网络建立的方法和装置。 用于共存20MHz和40MHz网络(例如,由IEEE 802.11n定义)的技术可以扩展到80MHz和160MHz网络。 例如,现有网络的主要信道可以被指定为新网络的主要信道。 此外,现有网络的主要信道可能不被用作新网络中的辅助信道。 网络之间的不耐受操作可以包括响应于从第二网络接收到的不耐受指示而释放一个或多个信道的第一网络。 此外,响应于来自第二网络的不允许指示,第一网络可以使用一个或多个信道来使用第一组接入参数在第一网络中进行通信。 访问参数可能取决于不耐受指示。