利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

397 条记录 (耗时 0.037 秒)

    METHODS AND APPARATUS FOR DELAYED BLOCK ACKNOWLEDGEMENT IN A WIRELESS LOCAL AREA NETWORK (WLAN)
    72.
    发明申请
    METHODS AND APPARATUS FOR DELAYED BLOCK ACKNOWLEDGEMENT IN A WIRELESS LOCAL AREA NETWORK (WLAN) 有权
    在无线局域网（WLAN）中延迟块确认的方法和装置

    公开(公告)号：US20090252143A1

    公开(公告)日：2009-10-08

    申请号：US12277770

    申请日：2008-11-25

    申请人： Vinay Sridhara ,  Sanjiv Nanda ,  Srinivas Kandala

    发明人： Vinay Sridhara ,  Sanjiv Nanda ,  Srinivas Kandala

    IPC分类号： H04J3/00

    CPC分类号： H04L1/1685 ,  H04L1/1635 ,  H04L1/1854 ,  H04L1/1887 ,  H04L2001/0093

    摘要： Methods and apparatus for delayed block acknowledgments in a WLAN. In an aspect, a method is provided for communication with one or more nodes. The method includes transmitting to the one or more nodes a block comprising data and a first bit indicating no acknowledgements for the data are to be transmitted from the one or more nodes. The method also includes determining whether a selected time location within a transmit time duration has been reached, wherein if the selected time location has been reached, transmitting to the one or more nodes a second bit indicating that the one or more nodes are to transmit one or more acknowledgements, respectively, for the data. The method also includes receiving at least one acknowledgment for the data within a remaining portion of the transmit time duration.

    摘要翻译： WLAN中延迟块确认的方法和装置。 在一方面，提供了一种用于与一个或多个节点进行通信的方法。 该方法包括向一个或多个节点发送包含数据的块，并且从一个或多个节点发送指示不对数据进行确认的第一比特。 该方法还包括确定是否已经达到发送持续时间内的所选择的时间位置，其中如果已经到达所选择的时间位置，则向一个或多个节点发送指示一个或多个节点要发送一个的第二比特 或更多的确认数据。 该方法还包括在传输持续时间的剩余部分内接收数据的至少一个确认。

    METHOD AND APPARTUS FOR EXTENDED REVERSE DIRECTION GRANT IN A WIRELESS LOCAL AREA NETWORK (WLAN)
    74.
    发明申请
    METHOD AND APPARTUS FOR EXTENDED REVERSE DIRECTION GRANT IN A WIRELESS LOCAL AREA NETWORK (WLAN) 有权
    在无线局域网（WLAN）中扩展反向方向授权的方法和应用

    公开(公告)号：US20090252110A1

    公开(公告)日：2009-10-08

    申请号：US12361773

    申请日：2009-01-29

    申请人： Vinay Sridhara ,  Sanjiv Nanda ,  Santosh P. Abraham ,  Srinivas Kandala

    发明人： Vinay Sridhara ,  Sanjiv Nanda ,  Santosh P. Abraham ,  Srinivas Kandala

    IPC分类号： H04J3/00 ,  H04J1/00 ,  H04W84/12

    CPC分类号： H04L1/1854 ,  H04L1/1614 ,  H04L2001/0093 ,  H04W74/06 ,  H04W84/12

    摘要： Methods and apparatus for extended reverse direction grant in a WLAN. In an aspect, a method includes transmitting data within a transmit interval to a plurality of the nodes, wherein the data comprises a first indicator. The method also includes receiving, in response to the first indicator, a data transmission from at least one of the nodes, wherein the data transmission was transmitted using a selected transmission resource and is received within the transmit interval. In an aspect, an apparatus includes a receiver to receive, within a time interval, first data over a common channel, the first data being decodable by other nodes. The apparatus also includes a controller to determine whether the first data comprises a first indicator, and a transmitter to transmit second data within the time interval using selected transmission resources, if the first data comprises the first indicator.

    摘要翻译： WLAN中扩展逆向授权的方法和装置。 在一方面，一种方法包括在发送间隔内向多个节点发送数据，其中所述数据包括第一指示符。 该方法还包括响应于第一指示符接收来自至少一个节点的数据传输，其中使用所选择的传输资源发送数据传输并在发送间隔内接收数​​据传输。 在一方面，一种装置包括：接收机，用于在一个时间间隔内在公共信道上接收第一数据，该第一数据可由其他节点解码。 所述装置还包括控制器，用于确定所述第一数据是否包括第一指示符，以及发射机，如果所述第一数据包括所述第一指示符，则在所述时间间隔内使用所选择的传输资源来发送第二数据。

    Scheduling with reverse direction grant in wireless communication systems
    75.
    发明授权
    Scheduling with reverse direction grant in wireless communication systems 有权
    在无线通信系统中进行逆向授权调度

    公开(公告)号：US09198194B2

    公开(公告)日：2015-11-24

    申请号：US13440666

    申请日：2012-04-05

    申请人： Arnaud Meylan ,  Sanjiv Nanda

    发明人： Arnaud Meylan ,  Sanjiv Nanda

    IPC分类号： H04B1/14 ,  H04W74/06 ,  H04W72/04 ,  H04W72/14

    CPC分类号： H04W72/04 ,  H04W72/0406 ,  H04W72/14 ,  H04W74/06

    摘要： Systems and methodologies are described that facilitate increased communication channel bandwidth efficiency in association with scheduled time periods that allocate channel access to particular stations. According to various aspects, systems and methods are described that facilitate providing and/or utilizing reverse direction grants in connection with scheduled channel access. Such systems and/or method can mitigate an amount of unused channel access time after a station completes data transmission prior to an end of the allocated period.

    摘要翻译： 描述了与分配对特定站的信道访问的调度时间段相关联的促进增加的通信信道带宽效率的系统和方法。 根据各个方面，描述了有助于提供和/或利用与调度的信道接入有关的反向授权的系统和方法。 这样的系统和/或方法可以在站在分配的周期结束之前完成数据传输之后减轻未使用的信道访问时间量。

    Method and system for providing beamforming feedback in wireless communication systems
    76.
    发明授权
    Method and system for providing beamforming feedback in wireless communication systems 有权
    在无线通信系统中提供波束成形反馈的方法和系统

    公开(公告)号：US08665795B2

    公开(公告)日：2014-03-04

    申请号：US13277450

    申请日：2011-10-20

    申请人： John W Ketchum ,  Sanjiv Nanda ,  Arnaud Meylan ,  Shravan K Surineni

    发明人： John W Ketchum ,  Sanjiv Nanda ,  Arnaud Meylan ,  Shravan K Surineni

    IPC分类号： H04Q7/00

    CPC分类号： H04B7/0643 ,  H04B7/0421 ,  H04B7/0617 ,  H04B7/0634 ,  H04B7/0636 ,  H04L25/0204 ,  H04L25/0228 ,  H04L25/03343 ,  H04L2025/03414 ,  H04L2025/03426 ,  H04L2025/03802

    摘要： Techniques to support beamforming for stations in a wireless network are described. A station may support beamforming with implicit or explicit feedback by having capabilities to transmit and receive sounding frames, responding to training request by sending a sounding frame, and responding to request for explicit feedback. In one explicit beamforming embodiment, the station may send a first frame with an explicit feedback request and may also send a Null Data Packet (NDP) having at least one training field but no data field. The station may receive a second frame with explicit feedback, which may be derived based on the NDP. The station may derive steering information based on explicit feedback and may then send a steered frame with beamforming based on steering information. Other aspects, embodiments, and features are also claimed and described.

    摘要翻译： 描述了支持无线网络中的站的波束成形的技术。 站可以通过具有发送和接收探测帧的能力来支持具有隐式或显式反馈的波束成形，通过发送探测帧来响应训练请求，以及响应对显式反馈的请求。 在一个明确的波束形成实施例中，站可以发送具有显式反馈请求的第一帧，并且还可以发送具有至少一个训练场但不包括数据字段的空数据分组（NDP）。 该站可以接收具有显式反馈的第二帧，其可以基于NDP导出。 该站可以基于显式反馈导出转向信息，然后可以基于转向信息发送具有波束成形的转向帧。 还要求和描述其它方面，实施例和特征。

    METHOD AND SYSTEM FOR PROVIDING BEAMFORMING FEEDBACK IN WIRELESS COMMUNICATION SYSTEMS
    78.
    发明申请
    METHOD AND SYSTEM FOR PROVIDING BEAMFORMING FEEDBACK IN WIRELESS COMMUNICATION SYSTEMS 有权
    在无线通信系统中提供波束形成反馈的方法和系统

    公开(公告)号：US20070298742A1

    公开(公告)日：2007-12-27

    申请号：US11768329

    申请日：2007-06-26

    申请人： John W. Ketchum ,  Sanjiv Nanda ,  Arnaud Meylan ,  Shravan K. Surineni

    发明人： John W. Ketchum ,  Sanjiv Nanda ,  Arnaud Meylan ,  Shravan K. Surineni

    IPC分类号： H04B1/18

    CPC分类号： H04B7/0643 ,  H04B7/0421 ,  H04B7/0617 ,  H04B7/0634 ,  H04B7/0636 ,  H04L25/0204 ,  H04L25/0228 ,  H04L25/03343 ,  H04L2025/03414 ,  H04L2025/03426 ,  H04L2025/03802

    摘要： Techniques to support beamforming for stations in a wireless network are described. In one aspect, a station may support beamforming with implicit feedback or explicit feedback by having capabilities to transmit and receive sounding frames, respond to training request by sending a sounding frame, and respond to request for explicit feedback. In one design of explicit beamforming, the station may send a first frame with a request for explicit feedback and may also send a Null Data Packet (NDP) having at least one training field but no data field. The station may receive a second frame with the explicit feedback, which may be derived based on the NDP. The station may derive steering information (e.g., steering matrices) based on the explicit feedback and may then send a steered frame with beamforming based on the steering information. The station may also perform implicit beamforming using NDP for sounding.

    摘要翻译： 描述了支持无线网络中的站的波束成形的技术。 在一个方面，站可以通过具有发送和接收探测帧的能力来支持具有隐式反馈或显式反馈的波束成形，通过发送探测帧来响应训练请求，以及响应对显式反馈的请求。 在显式波束形成的一种设计中，站可以发送具有对显式反馈的请求的第一帧，并且还可以发送具有至少一个训练场但不包括数据场的空数据分组（NDP）。 该站可以接收具有显式反馈的第二帧，其可以基于NDP导出。 基站可以基于显式反馈导出转向信息（例如，导引矩阵），然后可以基于转向信息发送具有波束成形的转向帧。 该站还可以使用NDP进行声音执行隐式波束成形。

    STANDBY TIME IMPROVEMENTS FOR STATIONS IN A WIRELESS NETWORK
    79.
    发明申请
    STANDBY TIME IMPROVEMENTS FOR STATIONS IN A WIRELESS NETWORK 有权
    无线网络中的站点的待机时间改进

    公开(公告)号：US20070297438A1

    公开(公告)日：2007-12-27

    申请号：US11680302

    申请日：2007-02-28

    申请人： Arnaud Meylan ,  Manoj Deshpande ,  Sanjiv Nanda

    发明人： Arnaud Meylan ,  Manoj Deshpande ,  Sanjiv Nanda

    IPC分类号： H04L12/413

    CPC分类号： H04W52/0225 ,  H04W52/0216 ,  H04W84/12 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/23

    摘要： Techniques to improve the standby time of a station in a wireless network are described. An access point may advertise or convey a maximum listen interval and/or an association timeout supported by that access point. A station may operate in a power-save mode and may wake up every listen interval to receive a beacon and any potential traffic for the station. The station may select a suitable listen interval based on the maximum listen interval. The station may be dormant for a longer duration than the listen interval and may become active at least once in every association timeout in order to keep the association with the access point alive. The access point may also send broadcast and multicast traffic that might be of interest to stations in the power-save mode less frequently and using a special indication message.

    摘要翻译： 描述了改善无线网络中的站的待机时间的技术。 接入点可以通告或传达由该接入点支持的最大监听间隔和/或关联超时。 站可以在省电模式下操作，并且可以在每个监听间隔中唤醒以接收该信标和该站的任何潜在业务。 该站可以基于最大监听间隔来选择合适的监听间隔。 该站可以比监听间隔更长的持续时间休眠，并且可以在每个关联超时中至少活动一次，以便保持与接入点的关联。 接入点还可以频发地发送节电模式中的站可能感兴趣的广播和组播流量，并使用特殊的指示消息。