公开(公告)号：US20120057515A1

公开(公告)日：2012-03-08

申请号：US13319342

申请日：2009-05-21

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： H04W4/06 ,  H04B7/14

CPC分类号： H04L12/18 ,  H04L12/189

摘要： A method and apparatus are described including communicating with neighbor nodes in a wireless network, determining one-hop neighbor nodes and two-hop neighbor nodes responsive to the communication, determining a minimum multipoint relay set responsive to the first working channel determination and communicating over the wireless network using the minimum multipoint relay set.

摘要翻译： 描述了一种方法和装置，包括与无线网络中的邻居节点通信，响应于通信确定一跳邻居节点和两跳邻居节点，响应于第一工作信道确定确定最小多点中继集，并通过 无线网络使用最小多点中继集。

公开(公告)号：US08705379B2

公开(公告)日：2014-04-22

申请号：US13319342

申请日：2009-05-21

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： H04L12/28

CPC分类号： H04L12/18 ,  H04L12/189

摘要： A method and apparatus are described including communicating with neighbor nodes in a wireless network, determining one-hop neighbor nodes and two-hop neighbor nodes responsive to the communication, determining a minimum multipoint relay set responsive to the first working channel determination and communicating over the wireless network using the minimum multipoint relay set.

摘要翻译： 描述了一种方法和装置，包括与无线网络中的邻居节点通信，响应于通信确定一跳邻居节点和两跳邻居节点，响应于第一工作信道确定确定最小多点中继集，并通过 无线网络使用最小多点中继集。

公开(公告)号：US08588113B2

公开(公告)日：2013-11-19

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： H04B7/005 ,  H04W4/00

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.

公开(公告)号：US20110167291A1

公开(公告)日：2011-07-07

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： G06F1/26

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的发射功率电平，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。

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。

公开(公告)号：US20110292897A1

公开(公告)日：2011-12-01

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

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：US08705383B2

公开(公告)日：2014-04-22

申请号：US12736831

申请日：2008-06-18

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： G01R31/08

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：US08553548B2

公开(公告)日：2013-10-08

申请号：US12736846

申请日：2008-06-23

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： H04L12/26

CPC分类号： H04W4/06 ,  H04L1/1685 ,  H04L12/1863 ,  H04L12/189 ,  H04W72/005 ,  H04W74/0816

摘要： A method and apparatus are described including determining if a communications medium is idle; determining a time interval for a reservation of said communications medium; multicasting a message for reserving said communications medium; receiving responses to said message for reserving said communications medium; and determining if a number of said received responses compared to an expected number of responses exceeds a value; performing one of initiating pending frame exchanges and multicasting data or management frames during said time interval for said reservation of said communications medium if said comparison exceeds said value; repeating said first determining act if said comparison does not exceed said value. Also described are a method and apparatus including receiving a message for a reservation of a communications medium; determining if said message specifies a receiver of the message in a list of receivers from which a response is requested; determining if said communications medium is idle; determining a time period in which to transmit said response responsive to an order in said list, wherein said list of receivers is one of a reply list of receiver addresses and a combination of a bitmap control field and a partial virtual bitmap; and transmitting said response to said message responsive to said second determination.

摘要翻译： 描述了确定通信介质是否空闲的方法和装置; 确定所述通信介质的预留的时间间隔; 组播用于保留所述通信介质的消息; 接收对所述消息的响应以保留所述通信介质; 以及确定与预期响应数量相比较的所述接收到的响应的数量是否超过一个值; 如果所述比较超过所述值，则执行在所述时间间隔期间启动等待的帧交换和组播数据或管理帧以用于所述通信介质的所述预留; 如果所述比较不超过所述值，则重复所述第一确定动作。 还描述了一种方法和装置，包括接收用于通信介质的预留的消息; 确定所述消息是否在请求响应的接收者的列表中指定消息的接收者; 确定所述通信介质是否空闲; 响应于所述列表中的顺序确定发送所述响应的时间段，其中所述接收机列表是接收机地址的答复列表和位图控制字段和部分虚拟位图的组合之一; 以及响应于所述第二确定，向所述消息发送所述响应。

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：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。