公开(公告)号：US08374192B2

公开(公告)日：2013-02-12

申请号：US11871874

申请日：2007-10-12

申请人： Shravan K. Surineni ,  Arnaud Meylan ,  Ajay Dassu

发明人： Shravan K. Surineni ,  Arnaud Meylan ,  Ajay Dassu

IPC分类号： H04L12/42

CPC分类号： H04W52/0225 ,  H04W88/02 ,  Y02D70/122 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/22

摘要： Techniques for improving power saving by stations in wireless networks are described. In an aspect, a source station sends a frame with a buffer status for a recipient station during an awake time for both stations and sends one or more data frames to the recipient station as indicated by the buffer status. The recipient station knows how many data frames to expect based on the buffer status and can go to sleep after receiving the expected number of data frames. In another aspect, a source station receives a frame with information on transmission opportunity (TXOP) bursting receive capability of a recipient station operating in a power save mode. The source station performs channel access at the start of a TXOP and sends multiple data frames in the TXOP to the recipient station based on the TXOP bursting receive capability of the recipient station.

摘要翻译： 描述了用于改善无线网络中的站节能的技术。 在一个方面，源站在两个站的唤醒时间期间发送具有用于接收站的缓冲器状态的帧，并且如缓冲器状态所指示的那样向接收站发送一个或多个数据帧。 接收站根据缓冲区状态知道要预期的数据帧数，并且可以在接收到预期的数据帧数后进入睡眠状态。 在另一方面，源站接收具有以节电模式操作的接收站的发送机会（TXOP）突发接收能力的信息的帧。 源站在TXOP的开始处执行信道接入，并且基于接收站的TXOP突发接收能力，将TXOP中的多个数据帧发送到接收站。

公开(公告)号：US20080095091A1

公开(公告)日：2008-04-24

申请号：US11871874

申请日：2007-10-12

申请人： Shravan K. Surineni ,  Arnaud Meylan ,  Ajay Dassu

发明人： Shravan K. Surineni ,  Arnaud Meylan ,  Ajay Dassu

IPC分类号： G08C17/02

CPC分类号： H04W52/0225 ,  H04W88/02 ,  Y02D70/122 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/22

摘要： Techniques for improving power saving by stations in wireless networks are described. In an aspect, a source station sends a frame with a buffer status for a recipient station during an awake time for both stations and sends one or more data frames to the recipient station as indicated by the buffer status. The recipient station knows how many data frames to expect based on the buffer status and can go to sleep after receiving the expected number of data frames. In another aspect, a source station receives a frame with information on transmission opportunity (TXOP) bursting receive capability of a recipient station operating in a power save mode. The source station performs channel access at the start of a TXOP and sends multiple data frames in the TXOP to the recipient station based on the TXOP bursting receive capability of the recipient station.

摘要翻译： 描述了用于改善无线网络中的站节能的技术。 在一个方面，源站在两个站的唤醒时间期间发送具有用于接收站的缓冲器状态的帧，并且如缓冲器状态所指示的那样向接收站发送一个或多个数据帧。 接收站根据缓冲区状态知道要预期的数据帧数，并且可以在接收到预期的数据帧数后进入睡眠状态。 在另一方面，源站接收具有以节电模式操作的接收站的发送机会（TXOP）突发接收能力的信息的帧。 源站在TXOP的开始处执行信道接入，并且基于接收站的TXOP突发接收能力，将TXOP中的多个数据帧发送到接收站。

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。

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。

公开(公告)号：US20120127899A1

公开(公告)日：2012-05-24

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： H04W4/00

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 the 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。

公开(公告)号：US07796545B2

公开(公告)日：2010-09-14

申请号：US11388573

申请日：2006-03-24

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

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

IPC分类号： H04L12/56 ,  H04B7/212

CPC分类号： H04W52/0225 ,  H04W74/04 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/23

摘要： Techniques to efficiently schedule and serve stations in a wireless network are described. An access point may aggregate stations with flows carrying traffic having similar characteristics, e.g., VoIP flows. The access point may schedule these stations together in an overall service period. The access point may serve each station in a respective service period within the overall service period. The access point may send a multi poll frame at the start of the overall service period to indicate the start time and/or service period for each station. Each station may decide to power down until its start time. The service periods for the stations may overlap one another. The service period for each station may cover an initial transmission as well as additional transmission and/or retransmission. If additional transmission and/or retransmission are not needed for a given station, then the next station may be served right away.

摘要翻译： 描述了在无线网络中有效地调度和服务站的技术。 接入点可以聚合具有携带具有类似特征的流量的流的站，例如VoIP流。 接入点可以在整个服务周期内将这些站安排在一起。 接入点可以在整个服务周期内的相应服务周期内为每个站服务。 接入点可以在整个服务周期开始时发送多轮询帧，以指示每个车站的起始时间和/或服务周期。 每个工作站可能决定关闭电源直到其开始时间。 站点的服务周期可能彼此重叠。 每个站的服务周期可以覆盖初始传输以及额外的传输和/或重传。 如果对于给定的站不需要额外的传输和/或重传，则可以立即提供下一个站。

公开(公告)号：US20100315979A1

公开(公告)日：2010-12-16

申请号：US12766519

申请日：2010-04-23

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

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

IPC分类号： H04B7/00 ,  H04L12/66

CPC分类号： H04W52/0225 ,  H04W74/04 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/23

摘要： Techniques to efficiently schedule and serve stations in a wireless network are described. An access point may aggregate stations with flows carrying traffic having similar characteristics, e.g., VoIP flows. The access point may schedule these stations together in an overall service period. The access point may serve each station in a respective service period within the overall service period. The access point may send a multi poll frame at the start of the overall service period to indicate the start time and/or service period for each station. Each station may decide to power down until its start time. The service periods for the stations may overlap one another. The service period for each station may cover an initial transmission as well as additional transmission and/or retransmission. If additional transmission and/or retransmission are not needed for a given station, then the next station may be served right away.

摘要翻译： 描述了在无线网络中有效地调度和服务站的技术。 接入点可以聚合具有携带具有类似特征的流量的流的站，例如VoIP流。 接入点可以在整个服务周期内将这些站安排在一起。 接入点可以在整个服务周期内的相应服务周期内为每个站服务。 接入点可以在整个服务周期开始时发送多轮询帧，以指示每个车站的起始时间和/或服务周期。 每个工作站可能决定关闭电源直到其开始时间。 站点的服务周期可能彼此重叠。 每个站的服务周期可以覆盖初始传输以及额外的传输和/或重传。 如果对于给定的站不需要额外的传输和/或重传，则可以立即提供下一个站。

公开(公告)号：US20080205340A1

公开(公告)日：2008-08-28

申请号：US11680455

申请日：2007-02-28

申请人： Arnaud Meylan ,  Santosh Abraham ,  Shravan K. Surineni ,  Sanjiv Nanda

发明人： Arnaud Meylan ,  Santosh Abraham ,  Shravan K. Surineni ,  Sanjiv Nanda

IPC分类号： H04Q7/00

CPC分类号： H04W8/005 ,  H04W48/12 ,  H04W48/18 ,  H04W52/0216 ,  H04W92/20 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/22

摘要： Beacons may be grouped to facilitate neighbor discovery in a wireless network. For example, neighboring access devices such as IEEE 802.11 access points may cooperate to transmit beacons in a group. In this way, a wireless device seeking to discover the neighboring access devices may scan for the beacons for a shorter period of time. An indication may be provided to enable a wireless device to more efficiently scan the beacons. For example, the indication may indicate the channel the wireless device should scan to receive the next beacon that is to be transmitted. In addition, the indication may include information relating to the transmission time of the next beacon.

摘要翻译： 信标可以被分组以便于无线网络中的邻居发现。 例如，诸如IEEE 802.11接入点之类的相邻接入设备可以协作来传送组中的信标。 以这种方式，寻求发现相邻接入设备的无线设备可以在更短的时间段内扫描信标。 可以提供指示以使得无线设备能够更有效地扫描信标。 例如，该指示可以指示无线设备应扫描的频道以接收将被发送的下一个信标。 此外，该指示可以包括与下一个信标的发送时间有关的信息。

公开(公告)号：US08787841B2

公开(公告)日：2014-07-22

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： H04B1/00 ,  H04B7/06 ,  H04L25/03 ,  H04L25/02 ,  H04B7/04

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。

公开(公告)号：US08363674B2

公开(公告)日：2013-01-29

申请号：US12766519

申请日：2010-04-23

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

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

IPC分类号： H04J3/16 ,  H04J3/00 ,  H04L12/42

CPC分类号： H04W52/0225 ,  H04W74/04 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/23

摘要： Techniques to efficiently schedule and serve stations in a wireless network are described. An access point may aggregate stations with flows carrying traffic having similar characteristics, e.g., VoIP flows. The access point may schedule these stations together in an overall service period. The access point may serve each station in a respective service period within the overall service period. The access point may send a multi poll frame at the start of the overall service period to indicate the start time and/or service period for each station. Each station may decide to power down until its start time. The service periods for the stations may overlap one another. The service period for each station may cover an initial transmission as well as additional transmission and/or retransmission. If additional transmission and/or retransmission are not needed for a given station, then the next station may be served right away.

摘要翻译： 描述了在无线网络中有效地调度和服务站的技术。 接入点可以聚合具有携带具有类似特征的流量的流的站，例如VoIP流。 接入点可以在整个服务周期内将这些站安排在一起。 接入点可以在整个服务周期内的相应服务周期内为每个站服务。 接入点可以在整个服务周期开始时发送多轮询帧，以指示每个车站的起始时间和/或服务周期。 每个工作站可能决定关闭电源直到其开始时间。 站点的服务周期可能彼此重叠。 每个站的服务周期可以覆盖初始传输以及额外的传输和/或重传。 如果对于给定的站不需要额外的传输和/或重传，则可以立即提供下一个站。