公开(公告)号：US20080170550A1

公开(公告)日：2008-07-17

申请号：US11885838

申请日：2005-03-10

申请人： Hang Liu ,  Jun Li ,  Saurabh Mathur

发明人： Hang Liu ,  Jun Li ,  Saurabh Mathur

IPC分类号： H04Q7/24

CPC分类号： H04W40/26 ,  H04L49/201 ,  H04L49/205 ,  H04L49/25 ,  H04L49/3009 ,  H04L49/602

摘要： A method for selecting a route by a node between a source node and a destination node in a wireless mesh network by establishing the route between the source node and the destination node using media access control addresses is described. A method for a node to selecting a route to join a multicast group in a wireless mesh network using media access control addresses, is also described.

摘要翻译： 描述了通过使用媒体访问控制地址在源节点和目的地节点之间建立路由来通过无线网状网络中的源节点和目的地节点之间的节点选择路由的方法。 还描述了使用媒体访问控制地址来节点选择在无线网状网络中加入多播组的路由的方法。

公开(公告)号：US09247459B2

公开(公告)日：2016-01-26

申请号：US13635068

申请日：2010-04-29

申请人： Hang Liu ,  Mingquan Wu ,  John Li ,  Xiuping Lu ,  Ramkumar Perumanam ,  Saurabh Mathur

发明人： Hang Liu ,  Mingquan Wu ,  John Li ,  Xiuping Lu ,  Ramkumar Perumanam ,  Saurabh Mathur

IPC分类号： H04W28/16 ,  H04W16/14 ,  H04W84/12

CPC分类号： H04W28/16 ,  H04W16/14 ,  H04W84/12

摘要： Described herein are a method and apparatus including calculating an aggregate peak total traffic demand for all overlapping access points in an interference range, comparing the aggregate peak total traffic demand to a threshold, rejecting a requested new quality of service traffic stream responsive to results of the comparison, calculating a peak total traffic demand for each overlapping access point in the interference range if the requested new quality of service traffic stream is admissible responsive to results of the comparison, comparing the peak total traffic demand for each overlapping access point in the interference range, if the requested new quality of service traffic stream is admissible, to the threshold and one of accepting the requested new quality of service traffic stream and rejecting the requested new quality of service traffic stream responsive to results of the second comparison.

摘要翻译： 这里描述了一种方法和装置，包括计算干扰范围内所有重叠接入点的总峰值总业务量需求，将总峰值总业务量需求与阈值进行比较，响应于所得到的结果，拒绝所请求的新服务质量业务流 比较，如果响应于比​​较结果允许所请求的新的服务质量服务业务流是可接受的，则计算干扰范围内每个重叠接入点的峰值总业务量需求，比较干扰范围内每个重叠接入点的峰值总业务量需求 如果所请求的新的服务质量业务流被允许，则接收到阈值，并且响应于第二比较的结果，接受所请求的新的服务质量业务流并拒绝所请求的新的服务质量业务流。

公开(公告)号：US09078267B2

公开(公告)日：2015-07-07

申请号：US13138385

申请日：2009-02-18

申请人： Mingquan Wu ,  Hang Liu ,  Ishan Mandrekar ,  Ramkumar Perumanam ,  Saurabh Mathur

发明人： Mingquan Wu ,  Hang Liu ,  Ishan Mandrekar ,  Ramkumar Perumanam ,  Saurabh Mathur

IPC分类号： H04W72/04 ,  H04W72/06

CPC分类号： H04W72/0486

摘要： A method and apparatus are described including categorizing each channel into one of four categories, selecting a channel from a first category of channels, if there are any channels in the first category of channels, selecting a channel from a second category of channels, if there are any channels in the second category of channels and selecting a channel from a third category of channels, if there are any channels in the third category of channels.

摘要翻译： 描述了一种方法和装置，包括将每个信道分类为四个类别中的一个，从第一类别的信道中选择信道，如果在第一类别信道中存在任何信道，则从第二类信道中选择信道，如果有 是第二类信道中的任何信道，并且如果在第三类信道中存在任何信道，则从第三类信道中选择信道。

公开(公告)号：US08472365B2

公开(公告)日：2013-06-25

申请号：US12737070

申请日：2008-06-26

申请人： Hang Liu ,  Ishan Mandrekar ,  Minquan Wu ,  Ramkumar Perumanam ,  Saurabh Mathur

发明人： Hang Liu ,  Ishan Mandrekar ,  Minquan Wu ,  Ramkumar Perumanam ,  Saurabh Mathur

IPC分类号： H04W72/04

CPC分类号： H04L1/1685 ,  H04L1/1664 ,  H04L1/1877 ,  H04L1/188 ,  H04L12/1868 ,  H04L12/189 ,  H04L2001/0093

摘要： A method and apparatus are described including multicasting a plurality of data units and multicasting a request for acknowledging receipt of the plurality of data units, receiving signals responsive to the request. Also described are a method and apparatus including receiving a multicast request to acknowledge receipt of data, determining if a response to the request is required, determining status of the data, preparing the response based on the determining acts and transmitting the response.

摘要翻译： 描述了一种方法和装置，其包括多播数据单元并且多播用于确认多个数据单元的接收的请求，响应于该请求接收信号。 还描述了一种方法和装置，包括接收多播请求以确认数据的接收，确定是否需要对请求的响应，确定数据的状态，基于确定动作准备响应并发送响应。

公开(公告)号：US08462686B2

公开(公告)日：2013-06-11

申请号：US12737226

申请日：2008-06-30

申请人： Hang Liu ,  Ishan Mandrekar ,  Mingquan Wu ,  Ramkumar Perumanam ,  Saurabh Mathur

发明人： Hang Liu ,  Ishan Mandrekar ,  Mingquan Wu ,  Ramkumar Perumanam ,  Saurabh Mathur

IPC分类号： H04H20/71

CPC分类号： H04W74/008 ,  H04W74/0816

摘要： Message formats and apparatus are described that reserve access to a communication medium in a multicast system. A first message, a multicast request-to-send message, includes a duration field having information representing the reserved time for a communication medium, multicast receiver and transmitter address fields, and bits that specifies a destination that is expected to reply to the multicast digital message. The bits that specify a destination can be extended to a plurality of fields that each contain different destination identifiers. Example destination identifiers include association identifiers or media access control addresses. Alternately, the bits that specify a destination can have a first field containing an offset and a second field indicating destinations with respect to the offset. A second message includes a duration field and multicast receiver and transmitter address fields. The second message is used to cancel a data transmission resulting from a multicast request-to-send message.

摘要翻译： 描述了消息格式和装置，其保留对组播系统中的通信介质的访问。 第一消息，即组播请求发送消息，包括具有表示通信介质的保留时间的信息的持续时间字段，多播接收器和发送器地址字段以及指定期望回复多播数字的目的地的位 信息。 指定目的地的位可以扩展到多个字段，每个字段包含不同的目的地标识符。 示例目的地标识符包括关联标识符或媒体访问控制地址。 或者，指定目的地的位可以具有包含偏移的第一字段和指示相对于偏移的目的地的第二字段。 第二个消息包括持续时间字段和多播接收器和发送器地址字段。 第二个消息用于取消由多播请求发送消息导致的数据传输。

公开(公告)号：US20120170445A1

公开(公告)日：2012-07-05

申请号：US13395796

申请日：2009-10-07

申请人： Ramkumar Perumanam ,  Ishan Uday Mandrekar ,  Mingquan Wu ,  Hang Liu ,  Saurabh Mathur

发明人： Ramkumar Perumanam ,  Ishan Uday Mandrekar ,  Mingquan Wu ,  Hang Liu ,  Saurabh Mathur

IPC分类号： H04L12/24

CPC分类号： H04L1/1838 ,  H04L1/1848 ,  H04L1/1854 ,  H04L65/4084 ,  H04L65/80

摘要： A method and apparatus are described including buffering data to be transmitted, transmitting data retrieved from a buffer via a datagram protocol, receiving a request for retransmission of data, determining if the requested data is in the buffer and retransmitting the requested data via a protocol that provides end-to-end acknowledgement of data and error recovery.

摘要翻译： 描述了一种方法和装置，包括缓冲要发送的数据，经由数据报协议发送从缓冲器检索的数据，接收数据重传请求，确定所请求的数据是否在缓冲器中，并通过协议重传所请求的数据 提供端到端的数据确认和错误恢复。

公开(公告)号：US20110292898A1

公开(公告)日：2011-12-01

申请号：US13138387

申请日：2009-02-18

申请人： Mingquan Wu ,  Hang Liu ,  Ishan Mandrekar ,  Ramkumar Perumanam ,  Saurabh Mathur

发明人： Mingquan Wu ,  Hang Liu ,  Ishan Mandrekar ,  Ramkumar Perumanam ,  Saurabh Mathur

IPC分类号： H04W72/04 ,  H04W84/12

CPC分类号： H04W72/082 ,  H04W24/10 ,  H04W48/16 ,  H04W72/042 ,  H04W72/044 ,  H04W74/0808

摘要： A method and apparatus are described including scanning a channel, generating a report for the scanned channel, transmitting the channel report to an associated access point and receiving a channel assignment responsive to said channel report. Also described are a method and apparatus including scanning a channel, generating a first channel report, receiving a second channel report from an associated client, transmitting the first channel report and the second channel report to a server, receiving a channel assignment message from the server responsive to the first and second channel reports and transmitting the channel assignment message to the associated client. Further described are a method and apparatus including receiving a channel report from an associated access point, building an interference graph responsive to the channel report, determining channel assignments based on the interference graph and transmitting a channel assignment message to the associated access point.

摘要翻译： 描述了一种方法和装置，包括扫描信道，生成扫描信道的报告，将信道报告发送到相关联的接入点，以及响应于所述信道报告接收信道分配。 还描述了一种方法和装置，包括扫描信道，生成第一信道报告，从相关联的客户端接收第二信道报告，向服务器发送第一信道报告和第二信道报告，从服务器接收信道分配消息 响应于第一和第二信道报告并将信道分配消息发送到相关联的客户端。 进一步描述了一种方法和装置，包括从相关接入点接收信道报告，响应于信道报告构建干扰图，基于干扰图确定信道分配，并向相关联的接入点发送信道分配消息。

公开(公告)号：US20110069628A1

公开(公告)日：2011-03-24

申请号：US12736831

申请日：2008-06-18

申请人： Hang Liu ,  Ishan Mandrekar ,  Minquan Wu ,  Ramkumar Perumanam ,  Saurabh Mathur

发明人： Hang Liu ,  Ishan Mandrekar ,  Minquan Wu ,  Ramkumar Perumanam ,  Saurabh Mathur

IPC分类号： H04L12/26 ,  H04H20/71

CPC分类号： H04W74/0816 ,  H04W72/005

摘要： A method and apparatus are described including multicasting a medium reservation message and receiving a response to the medium reservation message. Also described are a method and apparatus including receiving a medium reservation message, determining if a medium is idle and transmitting a response to the medium reservation message responsive to the determination. Further described are a method and apparatus including receiving a medium reservation message, determining if a received network allocation vector in the medium reservation message has a value greater than a current network allocation vector, determining if transmission over a medium during a time interval is detected and resetting the current network allocation vector responsive to the determination of transmission. Yet further described are a method and apparatus including receiving a response to a medium reservation message, determining if a network allocation vector in the response is greater than a current network allocation vector and updating the current network allocation vector responsive to the determination.

摘要翻译： 描述了一种方法和装置，包括组播媒体预约消息并接收对媒体预留消息的响应。 还描述了一种方法和装置，包括接收介质预留消息，确定介质是否空闲并响应于该确定向媒体预留消息发送响应。 进一步描述了一种方法和装置，包括：接收介质预留消息，确定所述介质预留消息中的接收到的网络分配向量是否具有大于当前网络分配向量的值，确定是否检测到在时间间隔内的介质上的传输; 响应于传输的确定重置当前网络分配向量。 还进一步描述了一种方法和装置，包括接收对介质预留消息的响应，确定响应中的网络分配向量是否大于当前网络分配向量，并响应于确定更新当前网络分配向量。

公开(公告)号：US20090319824A1

公开(公告)日：2009-12-24

申请号：US12312236

申请日：2006-10-31

申请人： Hang Liu ,  Saurabh Mathur

发明人： Hang Liu ,  Saurabh Mathur

IPC分类号： G06F11/20

CPC分类号： H04L12/1868 ,  H04L12/189 ,  H04W4/06

摘要： A method and apparatus for recovering data, comprising establishing a secondary recovery network with a device, detecting data loss and recovering via the secondary recovery network the lost data from the device, the device having correctly received the data, are described. The lost data was sent in a primary wireless multicast network. A method and apparatus for recovering data, comprising receiving data, establishing a secondary recovery network with device and recovering the lost data via said secondary recovery network, are also described. The received data was sent in a primary wireless multicast network.

摘要翻译： 一种用于恢复数据的方法和装置，包括用设备建立辅助恢复网络，检测数据丢失并经由次级恢复网络恢复已经正确接收到数据的设备丢失的数据。 丢失的数据在主要无线组播网络中发送。 还描述了一种用于恢复数据的方法和装置，包括接收数据，建立具有设备的辅助恢复网络以及经由所述辅助恢复网络恢复丢失的数据。 接收到的数据是在主要无线组播网络中发送的。

公开(公告)号：US09215666B2

公开(公告)日：2015-12-15

申请号：US13061663

申请日：2008-09-03

申请人： Hang Liu ,  Ishan Mandrekar ,  Mingquan Wu ,  Ramkumar Perumanam ,  Saurabh Mathur

发明人： Hang Liu ,  Ishan Mandrekar ,  Mingquan Wu ,  Ramkumar Perumanam ,  Saurabh Mathur

IPC分类号： H04W52/08 ,  H04W52/20 ,  H04W52/24

CPC分类号： H04W52/20 ,  H04W52/08 ,  H04W52/245

摘要： A method and apparatus are described including receiving, by a transmitter, a report from an associated client, setting and using a downlink transmit power level responsive to the report for data transmissions to the associated client, determining a downlink data loss rate and adjusting the downlink transmit power level responsive to the downlink data loss rate, wherein said report includes received signal strength, client transmit power level and one of link margin and receiver sensitivity. Also described are a method and apparatus including receiving, by a receiver, a request for a report, transmitting the requested report, receiving an instruction to use an uplink transmit power level, setting and using the uplink transmit power level, determining an uplink data loss rate and adjusting the uplink transmit power level responsive to the uplink data loss rate, wherein said report includes said received signal strength, client transmit power level and one of said link margin and said receiver sensitivity.

摘要翻译： 描述了一种方法和装置，包括由发射机从相关联的客户端接收报告，响应于所述报告来设置和使用下行链路发射功率电平，以便向相关联的客户端发送数据，确定下行链路数据丢失率并调整下行链路 响应于下行链路数据丢失率发送功率电平，其中所述报告包括接收信号强度，客户端发射功率电平以及链路余量和接收机灵敏度之一。 还描述了一种方法和装置，包括由接收机接收对报告的请求，发送所请求的报告，接收使用上行链路发射功率电平的指令，设置和使用上行链路发射功率电平，确定上行链路数据丢失 响应于上行链路数据丢失率来速率和调整上行链路发射功率电平，其中所述报告包括所述接收信号强度，客户端发射功率电平以及所述链路余量和所述接收机灵敏度之一。