专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

111. 发明授权

US08472365B2 Method and system for acknowledgement and retransmission of multicast data in wireless local area networks 有权
标题翻译：无线局域网中组播数据的确认和重传方法及系统
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。

112. 发明授权

US08462686B2 Apparatus for collision mitigation of multicast transmissions in wireless networks 有权
标题翻译：用于在无线网络中进行组播传输的冲突缓解的装置
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。

113. 发明申请

US20130007186A1 CONTROLLING CONTENT CACHING AND RETRIEVAL 审中-公开
标题翻译：控制内容缓存和检索
公开(公告)号：US20130007186A1
公开(公告)日：2013-01-03
申请号：US13536491
申请日：2012-06-28
申请人： Hang Liu , Xavier De Foy , Osama Lotfallah , Serhad Doken , Milan Patel , Kamel M. Shaheen
发明人： Hang Liu , Xavier De Foy , Osama Lotfallah , Serhad Doken , Milan Patel , Kamel M. Shaheen
IPC分类号： G06F15/167
CPC分类号： H04L67/1008 , H04L67/101 , H04L67/1021 , H04L67/1046 , H04L67/1063 , H04L67/1076 , H04L67/1078 , H04L67/1091 , H04L67/2842 , H04L67/289
摘要： A tracker application server (AS) instructs a content cache server (CCS) to join a peer-to-peer (P2P) swarm based on the status of the P2P swarm. The tracker AS determines whether to invite a CCS to join the P2P swarm be based on an underlying network condition change, a peer node joining or leaving the P2P swarm, change(s) in traffic condition, location, capability or workload of the peer node(s) in the swarm. The tracker AS sends an invitation message to the CCS, indicating the content of interest and a peer list identifying the peer nodes of the P2P swarm. Upon receiving the invitation message from the tracker AS, the CCS sends a response to the tracker AS. Upon receiving a response indicating the acceptance of the invitation, the tracker AS puts the CCS into the P2P swarm, and the CCS joins the swarm using a P2P protocol.
摘要翻译：跟踪应用服务器（AS）根据P2P群的状态指示内容缓存服务器（CCS）加入对等（P2P）群。跟踪器AS基于底层网络状况变化，对等节点加入或离开P2P群组，决定是否邀请CCS加入P2P群组，改变对等节点的流量状况，位置，能力或工作量（s）在群中。跟踪器AS向CCS发送邀请消息，指示感兴趣的内容和标识P2P群的对等节点的对等体列表。在从跟踪器AS接收到邀请消息时，CCS向跟踪器AS发送响应。跟踪器AS收到指示接受邀请的响应后，将CCS放入P2P群中，CCS使用P2P协议加入群组。

114. 发明申请

US20130003579A1 METHOD AND APPARATUS FOR PARSING A NETWORK ABSTRACTION-LAYER FOR RELIABLE DATA COMMUNICATION 审中-公开
标题翻译：用于分配用于可靠数据通信的网络摘要层的方法和装置
公开(公告)号：US20130003579A1
公开(公告)日：2013-01-03
申请号：US13575653
申请日：2010-01-28
申请人： Xiuping Lu , Ishan Uday Mandrekar , Ramkumar Perumanam , Hang Liu
发明人： Xiuping Lu , Ishan Uday Mandrekar , Ramkumar Perumanam , Hang Liu
IPC分类号： H04L12/26 , H04L12/56
CPC分类号： H04L65/608 , H04L47/10 , H04L47/18 , H04L47/2408 , H04N21/234327 , H04N21/2662 , H04N21/631 , H04N21/6375 , H04N21/6405 , H04N21/6437 , H04N21/8451
摘要： A method and apparatus are described including parsing an abstraction-layer header, assigning a priority to a packet to be transmitted, buffering the 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. A network monitor of a transmitter is connected between a network interface and a retransmission decision maker for deciding which packets to retransmit, for example, based on the assigned priority and collected network statistics. A network monitor may also be provided at a receiver for collecting current network statistics and reporting them to transmitter.
摘要翻译：描述了一种方法和装置，包括解析抽象层报头，为要发送的分组分配优先级，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，接收数据重发请求，确定所请求的数据是否在缓冲器中，并且经由提供数据和错误恢复的端到端确认的协议来重传所请求的数据。发送器的网络监视器连接在网络接口和重发决策器之间，用于基于分配的优先级和收集的网络统计来决定哪些分组被重传。还可以在接收机处提供网络监视器以收集当前网络统计信息并将其报告给发射机。

115. 发明授权

US08320472B2 Method for efficient feedback of receiving channel conditions in adaptive video multicast and broadcast systems 有权
标题翻译：用于在自适应视频组播和广播系统中接收信道条件的有效反馈的方法
公开(公告)号：US08320472B2
公开(公告)日：2012-11-27
申请号：US12449807
申请日：2007-03-09
申请人： Hang Liu
发明人： Hang Liu
IPC分类号： H04B7/00
CPC分类号： H04L29/06027 , H04L12/1868 , H04L12/189 , H04L47/10 , H04L47/12 , H04L47/15 , H04L47/283 , H04L47/32 , H04L65/4076 , H04L65/605 , H04L65/608 , H04L65/80 , H04N21/44209 , H04N21/6405 , H04N21/6582
摘要： A method and apparatus for providing channel condition feedback in a multicast network are described including estimating a indication of channel condition, determining a receiver class based on the estimated indication of channel condition, calculating a delay, delaying transmission of the estimated indication of channel condition for the calculated delay, receiving a report from another receiver in the determined receiver class, the report including an indication of channel condition and canceling the delay if the received indication of channel condition is one of greater than and equal to the estimated indication of channel condition. The method and apparatus further include transmitting a single report for the calculated receiver class to a server including a worst indication of channel condition for the determined receiver class.
摘要翻译：描述了一种用于在多播网络中提供信道状态反馈的方法和装置，包括：估计信道条件的指示，基于所估计的信道状态指示，计算延迟，延迟所估计的信道条件指示的传输，所计算的延迟，在所确定的接收机类别中从另一接收机接收报告，所述报告包括信道条件的指示，并且如果所接收的信道条件的指示是大于等于所述信道条件的估计指示之一，则取消所述延迟。所述方法和装置还包括向所述服务器发送所计算的接收机类的单个报告，所述服务器包括所确定的接收机类的信道条件的最差指示。

116. 发明申请

US20120281621A1 WIRELESS PEER-TO-PEER NETWORK TOPOLOGY 有权
标题翻译：无线对等网络拓扑
公开(公告)号：US20120281621A1
公开(公告)日：2012-11-08
申请号：US13439982
申请日：2012-04-05
申请人： Osama Lotfallah , Milan Patel , Xavier De Foy , Debashish Purkayastha , Hang Liu , Kamel M. Shaheen
发明人： Osama Lotfallah , Milan Patel , Xavier De Foy , Debashish Purkayastha , Hang Liu , Kamel M. Shaheen
IPC分类号： G06F15/16 , H04W88/02
CPC分类号： H04L65/1016 , H04L12/145 , H04L41/0896 , H04L65/80 , H04W4/02 , H04W92/18
摘要： A method and apparatus for generating a topology for wireless peer-to-peer (P2P) networks. A network architecture comprises a traffic optimization service including a traffic optimization server and an adaptor to effect bi-directional translation of a request-response protocol of the traffic optimization service and a signaling protocol of a multimedia network. The traffic optimization server stores information related to wireless communication systems comprising user/location id information including cache proxies, media gateways, and network peers of multiple access networks and cost metric information including maximum bit rate, guaranteed bit rate, storage capacity, CPU capabilities, number of clients serving, battery capabilities, reliability of path, and supported video/audio codec.
摘要翻译：一种用于生成用于无线对等（P2P）网络的拓扑的方法和装置。网络架构包括流量优化服务，包括流量优化服务器和适配器，以实现流量优化服务的请求 - 响应协议和多媒体网络的信令协议的双向转换。流量优化服务器存储与无线通信系统有关的信息，包括包括高速缓存代理，媒体网关和多个接入网络的网络对等体的用户/位置id信息，以及包括最大比特率，保证比特率，存储容量，CPU能力的成本度量信息，服务的客户数量，电池功能，路径可靠性以及支持的视频/音频编解码器。

117. 发明授权

US08234547B2 Seamless handover of multicast sessions in internet protocol based wireless networks using staggercasting 有权
标题翻译：基于互联网协议的无线网络中组播会话的无缝切换使用交错
公开(公告)号：US08234547B2
公开(公告)日：2012-07-31
申请号：US12226799
申请日：2006-04-29
申请人： Hang Liu , Kumar Ramaswamy
发明人： Hang Liu , Kumar Ramaswamy
IPC分类号： H03M13/00
CPC分类号： H03M13/3761 , H04L1/0002 , H04L1/1819 , H04L2001/0093
摘要： A method and apparatus are described for recovering from loss of an original data packet, including detecting data packet loss, joining a delayed multicast group, receiving a delayed data packet and using the delayed data packet to recover the original data packet that was lost. The delayed data packet is one of a copy of the original data packet, a copy of the original data packet encoded at a lower bit rate or a parity packet. Also described are a method and apparatus for staggercasting including encoding and compressing a first data sequence, packetizing the compressed encoded data sequence to form a data packet, multicasting the data packet to a first multicast group, encoding and compressing a second data sequence, packetizing the compressed encoded second data sequence to form a packet and multicasting the packet delayed by an offset time to a second multicast group.
摘要翻译：描述了用于从原始数据分组丢失中恢复的方法和装置，包括检测数据分组丢失，加入延迟的多播组，接收延迟的数据分组，并使用延迟的数据分组来恢复丢失的原始数据分组。延迟的数据分组是原始数据分组的副本之一，以较低比特率编码的原始数据分组的副本或奇偶校验分组。还描述了一种用于交错广播的方法和装置，包括对第一数据序列进行编码和压缩，将压缩的编码数据序列打包以形成数据分组，将数据分组多播到第一多播组，对第二数据序列进行编码和压缩，压缩编码的第二数据序列以形成分组，并且将延迟偏移时间的分组多播到第二多播组。

118. 发明申请

US20120170445A1 EFFICIENT APPLICATION-LAYER AUTOMATIC REPEAT REQUEST RETRANSMISSION METHOD FOR RELIABLE REAL-TIME DATA STREAMING IN NETWORKS 审中-公开
标题翻译：网络中可靠的实时数据流的高效应用层自动重传请求重传方法
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。

119. 外观设计

USD651999S1 Handset 有权
公开(公告)号：USD651999S1
公开(公告)日：2012-01-10
申请号：US29383988
申请日：2011-01-25
申请人： Hang Liu
设计人： Hang Liu

120. 发明授权

US08081628B2 Multicast distribution tree establishment and maintenance in a wireless multi-hop relay communication system 有权
标题翻译：无线多跳中继通信系统中的组播分布树建立与维护
公开(公告)号：US08081628B2
公开(公告)日：2011-12-20
申请号：US12450669
申请日：2007-04-04
申请人： Mingquan Wu , Hang Liu
发明人： Mingquan Wu , Hang Liu
IPC分类号： H04L12/28
CPC分类号： H04L12/189 , H04L45/16 , H04L45/48 , H04W8/26 , H04W40/22 , H04W40/24 , H04W72/005 , H04W76/10 , H04W88/04
摘要： A method and apparatus for multicast communications in a multi-hop relay network are described including sending an extended request message, wherein the request message includes a multicast connection identification, multicast distribution tree information and a path identification and receiving an extended response message. Correspondingly, a method and apparatus for multicast communications in a multi-hop relay network are described including receiving an extended request message, wherein the request message includes a multicast connection identification, multicast distribution tree information and a path identification and sending an extended response message.
摘要翻译：描述了一种多跳中继网络中的组播通信的方法和装置，包括：发送扩展请求消息，其中所述请求消息包括多播连接标识，组播分发树信息和路径标识，并接收扩展响应消息。相应地，描述了一种多跳中继网络中的组播通信的方法和装置，包括接收扩展请求消息，其中请求消息包括组播连接标识，组播分配树信息和路径标识，并发送扩展响应消息。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式