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1.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
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。
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2.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：US20120127899A1
公开(公告)日：2012-05-24
申请号：US13277450
申请日：2011-10-20
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。
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3.发明授权公开(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
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。
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4.发明申请公开(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
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。
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公开(公告)号：US20080205340A1
公开(公告)日：2008-08-28
申请号：US11680455
申请日：2007-02-28
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。
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6.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：US08787841B2
公开(公告)日：2014-07-22
申请号：US11768329
申请日：2007-06-26
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。
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7.发明授权公开(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
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。
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公开(公告)号：US20110299417A1
公开(公告)日：2011-12-08
申请号：US13156109
申请日：2011-06-08
IPC分类号： H04W24/00
摘要： Embodiments for bandwidth allocation methods, detecting interference with other systems, and/or redeploying in alternate bandwidth are described. Higher bandwidth channels may be deployed at channel boundaries (410), which are a subset of those for lower bandwidth channels (310), and may be restricted from overlapping. Interference may be detected (930) on primary, secondary, or a combination of channels, and may be detected in response to energy measurements (910) of the various channels. When interference is detected, a higher bandwidth Basic Service Set (BSS)(100) may be relocated to an alternate channel, or may have its bandwidth reduced to avoid interference. Interference may be detected based on energy measured on the primary or secondary channel, and/or a difference between the two. An FFT (1010) may be used in energy measurement in either or both of the primary and secondary channels. Stations may also monitor messages from alternate systems to make channel allocation decisions. Various other aspects are also presented.
摘要翻译： 描述带宽分配方法的实施例，检测与其他系统的干扰和/或以备用带宽重新部署。 较高带宽信道可以部署在作为较低带宽信道（310）的子集的信道边界（410）处，并且可以被限制以重叠。 可以在主要，次要或信道的组合上检测（930）干扰，并且可以响应于各种信道的能量测量（910）来检测干扰。 当检测到干扰时，可以将更高带宽的基本业务集（BSS）（100）重新定位到备用信道，或者可以减少其带宽以避免干扰。 可以基于在主要或次要信道上测量的能量和/或两者之间的差异来检测干扰。 可以在主要和次要信道中的一个或两个中的能量测量中使用FFT（1010）。 站点还可以监视来自备用系统的消息以进行信道分配决定。 还提出了各种其他方面。
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公开(公告)号：US08462709B2
公开(公告)日：2013-06-11
申请号：US12507850
申请日：2009-07-23
IPC分类号： H04W4/00
摘要： Embodiments for bandwidth allocation methods, detecting interference with other systems, and/or redeploying in alternate bandwidth are described. Higher bandwidth channels may be deployed at channel boundaries (410), which are a subset of those for lower bandwidth channels (310), and may be restricted from overlapping. Interference may be detected (930) on primary, secondary, or a combination of channels, and may be detected in response to energy measurements (910) of the various channels. When interference is detected, a higher bandwidth Basic Service Set (BSS)(100) may be relocated to an alternate channel, or may have its bandwidth reduced to avoid interference. Interference may be detected based on energy measured on the primary or secondary channel, and/or a difference between the two. An FFT (1010) may be used in energy measurement in either or both of the primary and secondary channels. Stations may also monitor messages from alternate systems to make channel allocation decisions. Various other aspects are also presented.
摘要翻译： 描述带宽分配方法的实施例，检测与其他系统的干扰和/或以备用带宽重新部署。 较高带宽信道可以部署在作为较低带宽信道（310）的子集的信道边界（410）处，并且可以被限制以重叠。 可以在主要，次要或信道的组合上检测（930）干扰，并且可以响应于各种信道的能量测量（910）来检测干扰。 当检测到干扰时，可以将更高带宽的基本业务集（BSS）（100）重新定位到备用信道，或者可以减少其带宽以避免干扰。 可以基于在主要或次要信道上测量的能量和/或两者之间的差异来检测干扰。 可以在主要和次要信道中的一个或两个中的能量测量中使用FFT（1010）。 站点还可以监视来自备用系统的消息以进行信道分配决定。 还提出了各种其他方面。
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公开(公告)号：US08169980B2
公开(公告)日：2012-05-01
申请号：US11412578
申请日：2006-04-26
IPC分类号： H04J3/00
摘要： Apparatuses and methodologies are described that coordinate multiple wireless communication protocols within a mobile device. A single mobile device can contain multiple communication components (e.g., a Bluetooth component, an IEEE 802.11b/g component). To prevent interference and possible loss of data, one communication component may be prevented from transmitting or receiving data packets while the other communication component is either transmitting or receiving. The components may be coordinated by a central controller located in the mobile device. Alternatively, the communication components may exchange messages to determine transmission or reception priority. In addition, one communication component may monitor the status of the other communication component to determine unused communication slots.
摘要翻译： 描述了协调移动设备内的多个无线通信协议的装置和方法。 单个移动设备可以包含多个通信组件（例如，蓝牙组件，IEEE 802.11b / g组件）。 为了防止数据的干扰和可能的丢失，可以防止一个通信组件在其他通信组件正在发送或接收时发送或接收数据分组。 组件可以由位于移动设备中的中央控制器进行协调。 或者，通信组件可以交换消息以确定发送或接收优先级。 此外，一个通信组件可以监视另一通信组件的状态以确定未使用的通信时隙。
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