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1. 发明授权

US08665795B2 Method and system for providing beamforming feedback in wireless communication systems 有权
标题翻译：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。

2. 发明申请

US20110299417A1 MULTIPLE FREQUENCY BAND OPERATION IN WIRELESS NETWORKS 有权
标题翻译：无线网络中的多频带操作
公开(公告)号：US20110299417A1
公开(公告)日：2011-12-08
申请号：US13156109
申请日：2011-06-08
申请人： Sanjiv Nanda , Shravan K. Surineni , Jay Rodney Walton
发明人： Sanjiv Nanda , Shravan K. Surineni , Jay Rodney Walton
IPC分类号： H04W24/00
CPC分类号： H04W72/02 , H04W16/14 , H04W24/00 , H04W76/10
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。

3. 发明申请

US20070298742A1 METHOD AND SYSTEM FOR PROVIDING BEAMFORMING FEEDBACK IN WIRELESS COMMUNICATION SYSTEMS 有权
标题翻译：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。

4. 发明授权

US09883486B2 Multiple frequency band operation in wireless networks 有权
公开(公告)号：US09883486B2
公开(公告)日：2018-01-30
申请号：US13156109
申请日：2011-06-08
申请人： Sanjiv Nanda , Shravan K. Surineni , Jay Rodney Walton
发明人： Sanjiv Nanda , Shravan K. Surineni , Jay Rodney Walton
IPC分类号： H04L12/26 , H04W72/02 , H04W16/14 , H04W24/00 , H04W76/02
CPC分类号： H04W72/02 , H04W16/14 , H04W24/00 , H04W76/10
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.

5. 发明授权

US08364148B2 Methods and devices for interworking of wireless wide area networks and wireless local area networks or wireless personal area networks 有权
公开(公告)号：US08364148B2
公开(公告)日：2013-01-29
申请号：US11240725
申请日：2005-09-30
申请人： Subrahmanyam Dravida , Jay Rodney Walton , Sanjiv Nanda , Shravan K. Surineni
发明人： Subrahmanyam Dravida , Jay Rodney Walton , Sanjiv Nanda , Shravan K. Surineni
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.

6. 发明授权

US08311543B2 Methods and devices for interworking of wireless wide area networks and wireless local area networks or wireless personal area networks 有权
标题翻译：无线广域网和无线局域网或无线个人区域网互通的方法和装置
公开(公告)号：US08311543B2
公开(公告)日：2012-11-13
申请号：US11240045
申请日：2005-09-30
申请人： Subrahmanyam Dravida , Jay Rodney Walton , Sanjiv Nanda , Shravan K. Surineni
发明人： Subrahmanyam Dravida , Jay Rodney Walton , Sanjiv Nanda , Shravan K. Surineni
IPC分类号： H04W36/00 , H04W4/00
CPC分类号： H04W36/30 , H04W36/14 , H04W36/36 , H04W88/06
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。

7. 发明申请

US20120127899A1 METHOD AND SYSTEM FOR PROVIDING BEAMFORMING FEEDBACK IN WIRELESS COMMUNICATION SYSTEMS 有权
标题翻译：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
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。

8. 发明授权

US08126477B2 Methods and devices for interworking of wireless wide area networks and wireless local area networks or wireless personal area networks 有权
标题翻译：无线广域网和无线局域网或无线个人区域网互通的方法和装置
公开(公告)号：US08126477B2
公开(公告)日：2012-02-28
申请号：US11240323
申请日：2005-09-30
申请人： Subrahmanyam Dravida , Jay Rodney Walton , Sanjiv Nanda , Shravan K. Surineni
发明人： Subrahmanyam Dravida , Jay Rodney Walton , Sanjiv Nanda , Shravan K. Surineni
IPC分类号： H04W24/00
CPC分类号： G01S5/0009 , H04L12/5692 , H04L67/18 , H04L67/306 , H04W4/02 , H04W4/20 , H04W8/245 , H04W48/08 , H04W48/20 , H04W64/00 , H04W84/12 , H04W88/08
摘要： Embodiments describe methods, systems, and devices that utilize positional information to determine location of other device and/or to provide a location-based message. A method can include receiving a location information of a mobile device and using an access point to transmit location information to one or more other devices that do not include location functionality that are in communication with the mobile device. The method can further include transmitting a message to the mobile device based at least in part on the received access location information. In another embodiment, the method can include receiving a user preference data from the mobile device or one or more other devices and transmitting a communication to the mobile device or one or more other devices that conforms to the user preference data.
摘要翻译：实施例描述利用位置信息来确定其他设备的位置和/或提供基于位置的消息的方法，系统和设备。一种方法可以包括接收移动设备的位置信息并且使用接入点将位置信息发送到不包括与移动设备通信的位置功能的一个或多个其他设备。该方法还可以包括至少部分地基于所接收的访问位置信息向移动设备发送消息。在另一个实施例中，该方法可以包括从移动设备或一个或多个其他设备接收用户偏好数据，并向移动设备或符合用户偏好数据的一个或多个其他设备发送通信。

9. 发明申请

US20090285116A1 MULTIPLE FREQUENCY BAND OPERATION IN WIRELESS NETWORKS 有权
标题翻译：无线网络中的多频带操作
公开(公告)号：US20090285116A1
公开(公告)日：2009-11-19
申请号：US12507850
申请日：2009-07-23
申请人： Sanjiv Nanda , Shravan K. Surineni , Jay Rodney Walton
发明人： Sanjiv Nanda , Shravan K. Surineni , Jay Rodney Walton
IPC分类号： H04L12/26 , H04B17/00 , H04L12/413
CPC分类号： H04W72/02 , H04W16/14 , H04W24/00 , H04W76/10
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。

10. 发明授权

US08462709B2 Multiple frequency band operation in wireless networks 有权
标题翻译：无线网络中的多频段操作
公开(公告)号：US08462709B2
公开(公告)日：2013-06-11
申请号：US12507850
申请日：2009-07-23
申请人： Sanjiv Nanda , Shravan K. Surineni , J. Rodney Walton
发明人： Sanjiv Nanda , Shravan K. Surineni , J. Rodney Walton
IPC分类号： H04W4/00
CPC分类号： H04W72/02 , H04W16/14 , H04W24/00 , H04W76/10
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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