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41. 发明授权

US08547865B2 Rate selection for eigensteering in a MIMO communication system 有权
标题翻译： MIMO通信系统中本征导向的速率选择
公开(公告)号：US08547865B2
公开(公告)日：2013-10-01
申请号：US13008755
申请日：2011-01-18
申请人： Arnaud Meylan , Santosh Paul Abraham , Sanjiv Nanda
发明人： Arnaud Meylan , Santosh Paul Abraham , Sanjiv Nanda
IPC分类号： G01R31/08
CPC分类号： H04B7/0417 , H04B7/0421 , H04B7/0632 , H04B7/0643 , H04L1/0002 , H04L1/0015 , H04L1/0025 , H04L1/0026 , H04L1/06 , H04L1/1671 , H04L25/0204 , H04L25/0228 , H04L25/0248 , H04L25/0398 , H04L2025/03414 , H04L2025/03426 , H04L2025/03802
摘要： Techniques for selecting rates for data transmission on eigenmodes of a MIMO channel are described. An access point transmits an unsteered MIMO pilot via the downlink. A user terminal estimates the downlink channel quality based on the downlink unsteered MIMO pilot and transmits an unsteered MIMO pilot and feedback information via the uplink. The feedback information is indicative of the downlink channel quality. The access point estimates the uplink channel quality and obtains a channel response matrix based on the uplink unsteered MIMO pilot, decomposes the channel response matrix to obtain eigenvectors and channel gains for the eigenmodes of the downlink, and selects rates for the eigenmodes based on the estimated uplink channel quality, the channel gains for the eigenmodes, and the feedback information. The access point processes data based on the selected rates and transmits steered data and a steered MIMO pilot on the eigenmodes with the eigenvectors.
摘要翻译：描述了用于选择MIMO信道的本征模式上的数据传输速率的技术。接入点经由下行链路发送非导向MIMO导频。用户终端基于下行链路非导向MIMO导频来估计下行链路信道质量，并通过上行链路发送非导向MIMO导频和反馈信息。反馈信息表示下行链路信道质量。接入点估计上行链路信道质量，并且基于上行链路非导向MIMO导频获得信道响应矩阵，分解信道响应矩阵以获得用于下行链路本征模式的特征向量和信道增益，并且基于所估计的本征模式选择本征模式的速率上行链路信道质量，本征模式的信道增益和反馈信息。接入点基于所选择的速率处理数据，并在特征向量的本征模式上传输转向数据和转向MIMO导频。

42. 发明授权

US08363674B2 Method and apparatus for scheduling in a wireless communication network 有权
标题翻译：用于在无线通信网络中进行调度的方法和装置
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。

43. 发明授权

US07872981B2 Rate selection for eigensteering in a MIMO communication system 有权
标题翻译： MIMO通信系统中本征导向的速率选择
公开(公告)号：US07872981B2
公开(公告)日：2011-01-18
申请号：US11128843
申请日：2005-05-12
申请人： Arnaud Meylan , Santosh Abraham , Sanjiv Nanda
发明人： Arnaud Meylan , Santosh Abraham , Sanjiv Nanda
IPC分类号： G01R31/08 , H04W4/00 , H03B1/02 , H04B17/00
CPC分类号： H04B7/0417 , H04B7/0421 , H04B7/0632 , H04B7/0643 , H04L1/0002 , H04L1/0015 , H04L1/0025 , H04L1/0026 , H04L1/06 , H04L1/1671 , H04L25/0204 , H04L25/0228 , H04L25/0248 , H04L25/0398 , H04L2025/03414 , H04L2025/03426 , H04L2025/03802
摘要： Techniques for selecting rates for data transmission on eigenmodes of a MIMO channel are described. An access point transmits an unsteered MIMO pilot via the downlink. A user terminal estimates the downlink channel quality based on the downlink unsteered MIMO pilot and transmits an unsteered MIMO pilot and feedback information via the uplink. The feedback information is indicative of the downlink channel quality. The access point estimates the uplink channel quality and obtains a channel response matrix based on the uplink unsteered MIMO pilot, decomposes the channel response matrix to obtain eigenvectors and channel gains for the eigenmodes of the downlink, and selects rates for the eigenmodes based on the estimated uplink channel quality, the channel gains for the eigenmodes, and the feedback information. The access point processes data based on the selected rates and transmits steered data and a steered MIMO pilot on the eigenmodes with the eigenvectors.
摘要翻译：描述了用于选择MIMO信道的本征模式上的数据传输速率的技术。接入点经由下行链路发送非导向MIMO导频。用户终端基于下行链路非导向MIMO导频来估计下行链路信道质量，并通过上行链路发送非导向MIMO导频和反馈信息。反馈信息表示下行链路信道质量。接入点估计上行链路信道质量，并且基于上行链路非导向MIMO导频获得信道响应矩阵，分解信道响应矩阵以获得用于下行链路本征模式的特征向量和信道增益，并且基于所估计的本征模式选择本征模式的速率上行链路信道质量，本征模式的信道增益和反馈信息。接入点基于所选择的速率处理数据，并在本征矢量的本征模式上传输转向数据和转向MIMO导频。

44. 发明申请

US20070161364A1 Method and apparatus for scheduling in a wireless communication network 有权
标题翻译：用于在无线通信网络中进行调度的方法和装置
公开(公告)号：US20070161364A1
公开(公告)日：2007-07-12
申请号：US11388573
申请日：2006-03-24
申请人： Shravan Surineni , Arnaud Meylan , Sanjiv Nanda
发明人： Shravan Surineni , Arnaud Meylan , Sanjiv Nanda
IPC分类号： H04B1/16
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。

45. 发明授权

US08488508B2 Method and apparatus for providing reliable multicast in a wireless communication system 失效
标题翻译：一种用于在无线通信系统中提供可靠多播的方法和装置
公开(公告)号：US08488508B2
公开(公告)日：2013-07-16
申请号：US11937278
申请日：2007-11-08
申请人： Sanjiv Nanda , Arnaud Meylan
发明人： Sanjiv Nanda , Arnaud Meylan
IPC分类号： H04H20/71 , H04L12/56 , H04J3/24
CPC分类号： H04L12/1868
摘要： A method and apparatus is described which provides reliable multicasting in a WLAN. The use of at least two distinct MAC multicast addresses are used to separate the first multicast frame transmissions from subsequent multicast frame re-transmissions. Thereby enabling legacy devices to ignore duplicate retransmitted multicast frames, because the duplicate frames are sent using a multicast address they do not listen to. Thus, the legacy devices are not confused with duplicated frames. In addition, new devices benefit from the retransmissions sent on the second multicast address and can re-order the frames before delivering to the applications or upper layers; thereby improving the QoS for the multicast.
摘要翻译：描述了在WLAN中提供可靠多播的方法和装置。使用至少两个不同的MAC多播地址来分离第一多播帧传输与后续多播帧重传。从而使传统设备能够忽略重复重传的多播帧，因为重复的帧是使用他们不收听的多播地址发送的。因此，传统设备不会与复制的帧混淆。此外，新设备受益于在第二多播地址上发送的重传，并且可以在传送到应用或上层之前重新排序帧; 从而提高组播的QoS。

46. 发明申请

US20120188973A1 SCHEDULING WITH REVERSE DIRECTION GRANT IN WIRELESS COMMUNICATION SYSTEMS 有权
标题翻译：在无线通信系统中安排具有反向方向的授权
公开(公告)号：US20120188973A1
公开(公告)日：2012-07-26
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： H04W74/06 , H04W72/04
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。

47. 发明授权

US07796545B2 Method and apparatus for scheduling in a wireless communication network 有权
标题翻译：用于在无线通信网络中进行调度的方法和装置
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。

48. 发明申请

US20080112350A1 METHOD AND APPARATUS FOR PROVIDING RELIABLE MULTICAST IN A WIRELESS COMMUNICATION SYSTEM 失效
标题翻译：在无线通信系统中提供可靠多播的方法和装置
公开(公告)号：US20080112350A1
公开(公告)日：2008-05-15
申请号：US11937278
申请日：2007-11-08
申请人： Sanjiv Nanda , Arnaud Meylan
发明人： Sanjiv Nanda , Arnaud Meylan
IPC分类号： H04H20/71
CPC分类号： H04L12/1868
摘要： A method and apparatus is described which provides reliable multicasting in a WLAN. The use of at least two distinct MAC multicast addresses are used to separate the first multicast frame transmissions from subsequent multicast frame re-transmissions. Thereby enabling legacy devices to ignore duplicate retransmitted multicast frames, because the duplicate frames are sent using a multicast address they do not listen to. Thus, the legacy devices are not confused with duplicated frames. In addition, new devices benefit from the retransmissions sent on the second multicast address and can re-order the frames before delivering to the applications or upper layers; thereby improving the QoS for the multicast.
摘要翻译：描述了在WLAN中提供可靠多播的方法和装置。使用至少两个不同的MAC多播地址来分离第一多播帧传输与后续多播帧重传。从而使传统设备能够忽略重复重传的多播帧，因为重复的帧是使用他们不收听的多播地址发送的。因此，传统设备不会与复制的帧混淆。此外，新设备受益于在第二多播地址上发送的重传，并且可以在传送到应用或上层之前重新排序帧; 从而提高组播的QoS。

49. 发明申请

US20080056133A1 Concurrent Operation In Multiple Wireless Local Area Networks 有权
标题翻译：多个无线局域网并发运行
公开(公告)号：US20080056133A1
公开(公告)日：2008-03-06
申请号：US11846319
申请日：2007-08-28
申请人： Manoj Deshpande , Sanjiv Nanda , Arnaud Meylan , Atul Suri
发明人： Manoj Deshpande , Sanjiv Nanda , Arnaud Meylan , Atul Suri
IPC分类号： G08C15/00 , H04B7/00
CPC分类号： H04W52/0216 , H04W88/06 , Y02D70/142 , Y02D70/146 , Y02D70/22
摘要： A wireless terminal concurrently associates with multiple wireless local area networks. The wireless terminal may operate in power save mode on both of the WLANs to prevent a disruption of communication on either WLAN. The wireless terminal may adjust the times at which it listens for beacons to enable reception of beacon information even though the beacons for different WLANs may overlap in time. Beacon transmission times also may be scheduled to avoid overlapping transmissions of beacons on different WLANs.
摘要翻译：无线终端同时与多个无线局域网相关联。无线终端可以在两个WLAN上的省电模式下操作，以防止任何WLAN上的通信中断。即使不同WLAN的信标可能在时间上重叠，无线终端也可以调整其监听信标的时间以允许接收信标信息。也可以调度信标传输时间以避免不同WLAN上的信标重叠传输。

50. 发明授权

US09094880B2 Access terminal assisted node identifier confusion resolution using a time gap 有权
标题翻译：接入终端辅助节点标识符混淆分辨率使用时间间隔
公开(公告)号：US09094880B2
公开(公告)日：2015-07-28
申请号：US12486650
申请日：2009-06-17
申请人： Rajat Prakash , Rajarshi Gupta , Parag A. Agashe , Masato Kitazoe , Arnaud Meylan , Gavin B. Horn
发明人： Rajat Prakash , Rajarshi Gupta , Parag A. Agashe , Masato Kitazoe , Arnaud Meylan , Gavin B. Horn
IPC分类号： H04W36/00 , H04W84/04
CPC分类号： H04W36/0088 , H04W84/045
摘要： Confusion resulting from assigning the same node identifier to multiple nodes is resolved through the use of confusion detection techniques and the use of unique identifiers for the nodes. In some aspects a network may provide a time gap (e.g., an asynchronous time gap) during which an access terminal may temporarily cease monitoring transmissions from a source node so that the access terminal may acquire a unique identifier from a target node. In some aspects an access terminal may commence handover operations at a target node after determining whether the access terminal is allowed to access the target node. In some aspects a source node may prepare several target nodes for potential handover in the event confusion is detected or likely. Here, the source node may send information relating to the preparation of the potential target nodes to the access terminal whereby the access terminal uses the handover preparation information to initiate a handover at that target node.
摘要翻译：通过使用混淆检测技术和为节点使用唯一标识符来解决通过将相同的节点标识符分配给多个节点而产生的混淆。在一些方面，网络可以提供时间间隔（例如，异步时间间隔），在此期间，接入终端可能暂时停止监视来自源节点的传输，使得接入终端可以从目标节点获取唯一的标识符。在一些方面，接入终端可以在确定接入终端是否允许接入目标节点之后，在目标节点处开始切换操作。在某些方面，在检测到或可能的混淆的情况下，源节点可以准备若干目标节点用于潜在的切换。这里，源节点可以向接入终端发送与潜在目标节点的准备有关的信息，由此接入终端使用切换准备信息来发起该目标节点处的切换。

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