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1.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
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。
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2.发明授权Method and apparatus 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装置公开(公告)号：US08542589B2
公开(公告)日：2013-09-24
申请号：US11753798
申请日：2007-05-25
IPC分类号： G08C15/00
CPC分类号： H04B7/0636 , H04B7/0417 , H04B7/0634 , H04L1/1671
摘要： Techniques for quickly sending feedback information for beamforming are described. A transmitter/initiator sends a first frame comprising training symbols. A receiver/responder receives the first frame, determines the amount of time to generate feedback information, and determines the amount of time to send the feedback information. The receiver then determines the length of a second frame carrying the feedback information based on the amounts of time to generate and send the feedback information. The receiver sends the second frame after waiting a short interframe space (SIFS) period from the end of the first frame, without performing channel access. The receiver generates the feedback information based on the training symbols and sends the information in the second frame when ready. The transmitter receives the second frame, derives at least one steering matrix based on the feedback information, and sends a third frame with the at least one steering matrix.
摘要翻译： 描述了用于快速发送用于波束成形的反馈信息的技术。 发射机/发起者发送包括训练符号的第一帧。 接收器/响应器接收第一帧，确定产生反馈信息的时间量，并确定发送反馈信息的时间量。 然后，接收机基于生成和发送反馈信息的时间量确定承载反馈信息的第二帧的长度。 接收机在等待来自第一帧结束的短帧间间隔（SIFS）周期之后发送第二帧，而不执行信道接入。 接收机根据训练符号生成反馈信息，并在准备就绪时发送第二帧中的信息。 所述发射机接收所述第二帧，基于所述反馈信息导出至少一个导引矩阵，并且发送具有所述至少一个导引矩阵的第三帧。
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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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4.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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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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7.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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公开(公告)号：US09883486B2
公开(公告)日：2018-01-30
申请号：US13156109
申请日：2011-06-08
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.
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公开(公告)号：US08364148B2
公开(公告)日：2013-01-29
申请号：US11240725
申请日：2005-09-30
IPC分类号： H04W4/00
CPC分类号： H04W84/18 , H04M7/0075 , H04W24/08 , H04W40/02 , H04W40/20 , H04W60/00 , H04W84/04 , H04W84/12 , H04W88/08 , H04W92/02
摘要： Embodiments describe registration in a wireless communication system. A method includes wirelessly transmitting over a WWAN a first registration message from a mobile device, wirelessly transmitting through the WWAN a second registration message to a WLAN access point and receiving at the mobile device access through the WLAN access point. According to another embodiment is a method for constructing a self-configuring ad-hoc network. The method can include receiving a GPS coordinate from a WWAN channel node at a management system and creating an initial topography based at least in part on the GPS coordinate to achieve a network connectivity with diverse routes between a plurality of nodes.
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10.发明授权公开(公告)号：US08311543B2
公开(公告)日：2012-11-13
申请号：US11240045
申请日：2005-09-30
摘要： Embodiments describe utilizing time-based information to improve communication in a wireless network. A method can include receiving beacon information from at least one access point and utilizing time-stamp information associated with the beacon information to determine whether to hand off communication with a second access point. According to other embodiments the method can further include detecting beacon quality is below a threshold level and transmitting a poor beacon quality message. Information relating to a plurality of alternate access points can be received in response to the transmitted poor beacon quality message.
摘要翻译： 实施例描述了利用基于时间的信息来改善无线网络中的通信。 一种方法可以包括从至少一个接入点接收信标信息，并利用与信标信息相关联的时间戳信息来确定是否切断与第二接入点的通信。 根据其他实施例，该方法还可以包括检测信标质量低于阈值水平并发送不良信标质量消息。 可以响应于所发送的差信标质量消息而接收与多个替代接入点相关的信息。
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