Method and apparatus for managing data flow through a mesh network
    11.
    发明授权
    Method and apparatus for managing data flow through a mesh network 有权
    用于通过网状网络管理数据流的方法和装置

    公开(公告)号:US09521584B2

    公开(公告)日:2016-12-13

    申请号:US11549849

    申请日:2006-10-16

    摘要: Traffic streams through mesh points in a mesh network are managed. Data arriving at the mesh point are aggregated in packet queues. The packet queues segregate arriving data by the data's Quality of Service (QoS) requirement. An appropriate communication channel is selected. The communication channel is accessed through a contention access schema. An M-Request-To-Send (MRTS) message is sent to potential receiving mesh points with receiving mesh points responding with an M-Clear-to-Send (MCTS) message. Data from the packet queues is transmitted to the next mesh point. A mesh point power save mode allows battery operated mesh points to sleep preserving power.

    摘要翻译: 通过网状网络中的网点进行流量管理。 到达网格点的数据被聚合在数据包队列中。 数据包队列根据数据的服务质量(QoS)要求隔离到达的数据。 选择适当的通信通道。 通信通道是通过争用访问模式访问的。 将M-Request-To-Send(MRTS)消息发送到具有以M-Clear-to-Send(MCTS)消息响应的接收网点的潜在接收网点。 来自分组队列的数据被发送到下一个网格点。 网点省电模式允许电池操作的网点保持功率睡眠。

    Power control for wireless LAN stations
    12.
    发明授权
    Power control for wireless LAN stations 有权
    无线局域网站功率控制

    公开(公告)号:US09031044B2

    公开(公告)日:2015-05-12

    申请号:US12352733

    申请日:2009-01-13

    IPC分类号: H04W52/24 H04W52/08 H04W52/14

    摘要: Techniques and apparatus for controlling the transmit power of an uplink (UL) signal from a user terminal in a wireless communications system in an effort to achieve some target characteristic, such as a target carrier-to-interference (C/I) ratio, at an access point (AP) are provided. In this manner, such a user terminal may help avoid or compensate for imbalances in received radio frequency (RF) power between UL signals received from multiple user terminals by the AP. For example, the transmit power at each user terminal may be controlled in an effort to achieve a target post-processing C/I ratio of 28 dB per spatial stream in an effort to reduce large power imbalances and optimize throughput per user terminal. The user terminal and the AP may compose part of a multiple-input multiple-output (MIMO) communication system utilizing spatial-division multiple access (SDMA) techniques.

    摘要翻译: 用于在无线通信系统中用于控制来自用户终端的上行链路(UL)信号的发射功率的技术和装置,以努力实现诸如目标载波干扰(C / I)比等目标特性 提供接入点(AP)。 以这种方式,这样的用户终端可以帮助避免或补偿由AP从多个用户终端接收的UL信号之间的接收射频(RF)功率的不平衡。 例如,可以控制每个用户终端处的发射功率,以努力实现每个空间流28dB的目标后处理C / I比,以减少大的功率不平衡并优化每个用户终端的吞吐量。 用户终端和AP可以利用空分多址(SDMA)技术构成多输入多输出(MIMO)通信系统的一部分。

    Signaling methods for MMSE precoding with eigenmode selection
    14.
    发明授权
    Signaling methods for MMSE precoding with eigenmode selection 有权
    用于本征模式选择的MMSE预编码的信令方法

    公开(公告)号:US08363587B2

    公开(公告)日:2013-01-29

    申请号:US12408938

    申请日:2009-03-23

    IPC分类号: H04H20/71

    摘要: Different methods of signaling between an access point and user terminals in a multiuser wireless system for performing a minimum mean square error (MMSE) precoding at the access point preceded with eigenmode selection are provided. For one embodiment of the present disclosure, a compact feedback may be utilized between a plurality of user terminals and the access point. For another embodiment of the present disclosure, a hybrid feedback may be utilized between the plurality of user terminals and the access point. For yet another embodiment of the present disclosure, a full feedback may be utilized between the plurality of user terminals and the access point.

    摘要翻译: 提供了在多用户无线系统中的接入点和用户终端之间用于在本征模式选择之前的接入点执行最小均方误差(MMSE)预编码的不同的信令方法。 对于本公开的一个实施例,可以在多个用户终端和接入点之间使用紧凑的反馈。 对于本公开的另一实施例,可以在多个用户终端和接入点之间使用混合反馈。 对于本公开的另一个实施例,可以在多个用户终端和接入点之间使用完全反馈。

    DYNAMIC CARRIER SENSING THRESHOLDS
    15.
    发明申请
    DYNAMIC CARRIER SENSING THRESHOLDS 有权
    动态载波感测门限

    公开(公告)号:US20070242621A1

    公开(公告)日:2007-10-18

    申请号:US11734785

    申请日:2007-04-12

    IPC分类号: H04L12/28 H04L12/413

    摘要: Systems and methodologies are described that facilitate communication in a wireless network environment. In particular, access points can dynamically adjust transmit power and/or carrier-sensing thresholds to allow multiple access points to communicate concurrently. In aspects, access points exchange node information, including RSSI and node addresses, of nearby nodes. The node information can be utilized to detect hidden nodes and estimate interference levels. Transmit power and/or carrier-sensing thresholds can be modified as a function of distance between source and destination access points, interference from hidden nodes, transmission rates, and/or path loss.

    摘要翻译: 描述了促进无线网络环境中的通信的系统和方法。 特别地,接入点可以动态地调整发射功率和/或载波感测阈值,以允许多个接入点同时通信。 在方面,接入点交换附近节点的节点信息,包括RSSI和节点地址。 节点信息可用于检测隐藏节点并估计干扰电平。 可以将发射功率和/或载波感测阈值修改为源和目的地接入点之间的距离,来自隐藏节点的干扰,传输速率和/或路径损耗的函数。

    METHOD AND APPARATUS FOR FLOW CONTROL OF DATA IN A MESH NETWORK
    16.
    发明申请
    METHOD AND APPARATUS FOR FLOW CONTROL OF DATA IN A MESH NETWORK 有权
    网络流量控制数据的方法和装置

    公开(公告)号:US20070127380A1

    公开(公告)日:2007-06-07

    申请号:US11549823

    申请日:2006-10-16

    IPC分类号: H04L12/26 H04J1/16

    摘要: Flows admitted to a mesh node may be controlled through contention access parameters. The admitting node may determine a desired transmission opportunity duration, and a transmission opportunity frequency. Furthermore, the node may achieve the flow rate and delay bound requirements of the admitted flow based at least in part upon the desired transmission opportunity duration, and the transmission opportunity frequency. The data rate and the access frequency of the admitted node may be monitored at the physical access level. The flow rate requirement may be accomplished based at least in part upon an adjustment to the transmission opportunity duration. The delay bound requirement may be accomplished at least in part upon manipulation of the contention access parameters. The transmission opportunity duration and the access parameters may be determined by the upstream admitting nodes, which may reduce congestion near mesh portals, and accomplish increased data transfer.

    摘要翻译: 可以通过争用访问参数来控制进入网状节点的流。 接纳节点可以确定期望的传输机会持续时间和传输机会频率。 此外,节点可以至少部分地基于期望的传输机会持续时间和传输机会频率来实现允许的流的流速和延迟约束要求。 可以在物理访问级别监视允许的节点的数据速率和访问频率。 流量要求可以至少部分地基于对传输机会持续时间的调整来实现。 延迟限制要求可以至少部分地基于争用访问参数的操纵来实现。 传输机会持续时间和访问参数可以由上游准入节点确定,这可以减少网格门户附近的拥塞,并且实现增加的数据传输。

    Method and apparatus for scheduling in a wireless network
    17.
    发明授权
    Method and apparatus for scheduling in a wireless network 有权
    用于在无线网络中进行调度的方法和装置

    公开(公告)号:US08401018B2

    公开(公告)日:2013-03-19

    申请号:US11086085

    申请日:2005-03-21

    IPC分类号: H04W72/00

    摘要: Techniques for scheduling flows and links for transmission are described. Each link is an oriented source-destination pair and carries one or more flows. Each flow may be associated with throughput, delay, feedback (e.g., acknowledgments (ACKs)) and/or other requirements. A serving interval is determined for each flow based on the requirements for the flow. A serving interval is determined for each link based on the serving intervals for all of the flows sent on the link. Each link is scheduled for transmission at least once in each serving interval, if system resources are available, to ensure that the requirements for all flows sent on the link are met. The links are also scheduled in a manner to facilitate closed loop rate control. The links are further scheduled such that ACKs for one or more layers in a protocol stack are sent at sufficiently fast rates.

    摘要翻译: 描述用于调度流和用于传输的链路的技术。 每个链路是一个定向的源 - 目的地对,并携带一个或多个流。 每个流程可以与吞吐量,延迟,反馈(例如确认(ACK))和/或其他要求相关联。 根据流量的要求为每个流量确定服务间隔。 基于在链路上发送的所有流的服务间隔,为每个链路确定服务间隔。 如果系统资源可用,则每个链路被调度至少在每个服务间隔中传输一次,以确保满足在链路上发送的所有流的要求。 这些链路的安排也是为了方便闭环速率控制。 进一步调度链路,使得以足够快的速率发送协议栈中的一个或多个层的ACK。

    Method and apparatus for resolving blinded-node problems in wireless networks
    18.
    发明授权
    Method and apparatus for resolving blinded-node problems in wireless networks 有权
    解决无线网络盲节点问题的方法和装置

    公开(公告)号:US08320358B2

    公开(公告)日:2012-11-27

    申请号:US11955257

    申请日:2007-12-12

    IPC分类号: H04J3/24 H04L12/56

    CPC分类号: H04W74/0841

    摘要: Techniques for resolving blinded-node problems are described herein. One aspect operates on the physical (PHY) layer only, which a second layer operates on the medium access control (MAC) layer. Both aspects involve having a node stop processing a data packet that is not destined for it so as to be able to reserve its resources to detect control and other packets. An apparatus for implementing the techniques are also disclosed.

    摘要翻译: 本文描述了用于解决盲节点问题的技术。 一个方面仅在物理(PHY)层上操作,第二层在介质访问控制(MAC)层上操作。 这两个方面涉及使节点停止处理不发往其的数据分组,以便能够保留其资源以检测控制和其他分组。 还公开了一种用于实现该技术的装置。

    SIGNALING METHODS FOR MMSE PRECODING WITH EIGENMODE SELECTION
    19.
    发明申请
    SIGNALING METHODS FOR MMSE PRECODING WITH EIGENMODE SELECTION 有权
    用于MMSE预编码与信号选择的信令方法

    公开(公告)号:US20100238912A1

    公开(公告)日:2010-09-23

    申请号:US12408938

    申请日:2009-03-23

    IPC分类号: H04W4/00 H04B7/00

    摘要: Different methods of signaling between an access point and user terminals in a multiuser wireless system for performing a minimum mean square error (MMSE) precoding at the access point preceded with eigenmode selection are provided. For one embodiment of the present disclosure, a compact feedback may be utilized between a plurality of user terminals and the access point. For another embodiment of the present disclosure, a hybrid feedback may be utilized between the plurality of user terminals and the access point. For yet another embodiment of the present disclosure, a full feedback may be utilized between the plurality of user terminals and the access point.

    摘要翻译: 提供了在多用户无线系统中的接入点和用户终端之间用于在本征模式选择之前的接入点执行最小均方误差(MMSE)预编码的不同的信令方法。 对于本公开的一个实施例,可以在多个用户终端和接入点之间使用紧凑的反馈。 对于本公开的另一实施例,可以在多个用户终端和接入点之间使用混合反馈。 对于本公开的另一个实施例,可以在多个用户终端和接入点之间使用完全反馈。