公开(公告)号：US09014170B2

公开(公告)日：2015-04-21

申请号：US13370028

申请日：2012-02-09

申请人： Xavier De Foy ,  Milan Patel ,  Kamel M. Shaheen ,  Debashish Purkayastha ,  Osama Lotfallah ,  Hang Liu

发明人： Xavier De Foy ,  Milan Patel ,  Kamel M. Shaheen ,  Debashish Purkayastha ,  Osama Lotfallah ,  Hang Liu

IPC分类号： H04W56/00 ,  H04L29/06 ,  H04L29/08

CPC分类号： H04W4/08 ,  H04L7/0008 ,  H04L65/1016 ,  H04L65/1063 ,  H04L65/1089 ,  H04L65/1093 ,  H04L65/4015 ,  H04L65/403 ,  H04L65/4084 ,  H04L67/10 ,  H04L67/14 ,  H04L67/141 ,  H04W56/001

摘要： A method and apparatus are described for synchronizing mobile station (i.e., wireless transmit/receive unit (WTRU)) media flows during a collaboration session. Inter-WTRU transfer request messages, flow addition request messages and session update request messages may be exchanged between a plurality of WTRUs and a session continuity control application server (SCC-AS). Each of the messages may include a session description protocol (SDP) attribute line containing time synchronization information (e.g., a presentation time offset (PTO) information element (IE), a media flow group identity (ID) and a synchronization tolerance IE). The SCC-AS may update the time synchronization information and include the updated information in messages it sends to the WTRUs, which may re-synchronize their respective media flows based on the updated time synchronization information.

摘要翻译： 描述了在协作会话期间同步移动台（即，无线发射/接收单元（WTRU））媒体流的方法和装置。 可以在多个WTRU和会话连续性控制应用服务器（SCC-AS）之间交换WTRU间传输请求消息，流添加请求消息和会话更新请求消息。 每个消息可以包括包含时间同步信息（例如，呈现时间偏移（PTO）信息元素（IE）），媒体流组标识（ID）和同步容限IE）的会话描述协议（SDP）属性行。 SCC-AS可以更新时间同步信息，并将更新的信息包括在其发送到WTRU的消息中，其可以基于更新的时间同步信息重新同步其各自的媒体流。

公开(公告)号：US08989080B2

公开(公告)日：2015-03-24

申请号：US13811293

申请日：2010-07-27

申请人： Hang Liu ,  Sha Hua ,  Mingquan Wu ,  Jun Li

发明人： Hang Liu ,  Sha Hua ,  Mingquan Wu ,  Jun Li

IPC分类号： H04W16/14 ,  H04B7/02 ,  H04B7/155 ,  H04B7/26 ,  H04W84/04

CPC分类号： H04W16/14 ,  H04B7/024 ,  H04B7/15542 ,  H04B7/2656 ,  H04W84/047

摘要： A method and apparatus are described including competing by a secondary transmitter with a plurality of secondary nodes in a cognitive radio network to become a relay node for a primary transmitter, the secondary nodes being secondary transmitters and secondary receivers, receiving data transmitted by the primary transmitter in a first time slot if the secondary transmitter was successful in the competition, relaying the received data transmitted by the primary transmitter to a primary receiver in a second time slot, transmitting secondary data to a corresponding secondary receiver in a subslot of the second time slot and transmitting the secondary data to the corresponding secondary receiver in a subslot of the first time slot if the secondary transmitter was not successful in the competition and if the corresponding secondary receiver was successful in the competition.

摘要翻译： 描述了一种方法和装置，包括由认知无线电网络中的多个辅助节点与辅助发射机竞争成为主发射机的中继节点，次要节点是次要发射机和次要接收机，接收由主发射机发射的数据 在第一时隙中，如果次要发射机在比赛中成功，则在第二时隙中将由主发射机发送的接收数据中继到主接收机，在第二时隙的子时隙中将辅助数据发送到对应的辅助接收机 以及如果次要发射机在比赛中不成功，并且相应的次要接收机在比赛中是否成功，则在第一时隙的子时隙中将辅助数据发送到相应的辅助接收机。

公开(公告)号：US08732559B2

公开(公告)日：2014-05-20

申请号：US12309507

申请日：2006-07-25

申请人： Hang Liu ,  Liqiao Han ,  Mingquan Wu ,  Dekai Li ,  Kumar Ramaswamy

发明人： Hang Liu ,  Liqiao Han ,  Mingquan Wu ,  Dekai Li ,  Kumar Ramaswamy

IPC分类号： H03M13/00

CPC分类号： H04L1/0042 ,  H03M13/05 ,  H03M13/154 ,  H03M13/6312 ,  H03M13/6527 ,  H04L1/0031 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0047 ,  H04L1/0057 ,  H04L1/0075 ,  H04L1/0079 ,  H04L1/008 ,  H04L1/0083 ,  H04L12/18 ,  H04L65/4076 ,  H04N19/164 ,  H04N19/61 ,  H04N19/89 ,  H04N21/2381 ,  H04N21/26275 ,  H04N21/41407 ,  H04N21/4382 ,  H04N21/4425 ,  H04N21/6437 ,  H04W80/04

摘要： A method and system for transmitting data are described including packetizing the data, performing forward error correction (FEC) encoding on the packetized data in order to generate a parity packet, appending FEC information as padding to the end of payload data of the packetized data and transmitting the packetized data and the at least one parity packet. Also described are a method and system for recovering from loss of a packet including receiving a data packet, receiving a parity packet, buffering the received data packet, detecting packet loss, forward error correction decoding the parity packet to recover from packet loss using forward error correction information extracted from the data packet and from the parity packet and forwarding the recovered packet via an internal socket. Also described is a method for staggercasting.

摘要翻译： 描述了用于发送数据的方法和系统，包括对数据进行打包，对分组化数据执行前向纠错（FEC）编码，以便生成奇偶分组，将FEC信息作为填充附加到分组化数据的有效载荷数据的末尾; 发送分组化数据和至少一个奇偶校验分组。 还描述了一种用于从数据包丢失中恢复的方法和系统，包括接收数据分组，接收奇偶分组，缓冲接收到的数据分组，检测分组丢失，前向纠错解码奇偶分组，以使用前向误差从分组丢失中恢复 从数据分组和奇偶分组提取的修正信息，并通过内部套接字转发恢复的分组。 还描述了一种交错广播的方法。

公开(公告)号：US08625515B2

公开(公告)日：2014-01-07

申请号：US13147409

申请日：2009-02-03

申请人： Hang Liu ,  Lin Luo

发明人： Hang Liu ,  Lin Luo

IPC分类号： H04W4/00 ,  H04W72/00

CPC分类号： H04L45/125 ,  H04W40/22 ,  H04W72/04 ,  H04W72/12

摘要： A method and apparatus are described for determining a route, channel assignment, multiple-in, multiple out stream control and a transmission schedule in a network, including determining the route responsive to long term network conditions and long term traffic conditions of the network, determining the channel assignment, the multiple-in multiple-out stream control, and the transmission schedule responsive to local channel conditions, local link conditions and local traffic conditions of the network and determining if there has been a change in one of the long tem network conditions and the long term traffic conditions of the network.

摘要翻译： 描述了一种用于确定网络中的路由，信道分配，多进入，多出流控制和传输调度的方法和装置，包括响应于网络的长期网络条件和长期业务状况来确定路由，确定 响应于本地信道条件，本地链路状况和网络的本地业务状况的信道分配，多输入多输出流控制和传输调度，并且确定长期网络条件之一是否存在变化 和网络的长期交通状况。

公开(公告)号：US08451762B2

公开(公告)日：2013-05-28

申请号：US12227550

申请日：2006-06-27

申请人： Hang Liu ,  Kumar Ramaswamy ,  Jill MacDonald Boyce

发明人： Hang Liu ,  Kumar Ramaswamy ,  Jill MacDonald Boyce

IPC分类号： H04H20/71

CPC分类号： H04L12/66 ,  H04L1/0001 ,  H04L12/1863 ,  H04L29/12349 ,  H04L45/00 ,  H04L45/16 ,  H04L47/14 ,  H04L47/15 ,  H04L61/2507 ,  H04L65/4076 ,  H04L2001/0093

摘要： A method and apparatus are described including mapping a multicast connection to a unicast uniform resource identifier, establishing a state for a multicast-to-unicast conversion, allocating ports, receiving multicast addressed data packets and converting the multicast addressed data packets to unicast addressed data the packets.

摘要翻译： 描述了一种方法和装置，包括将多播连接映射到单播统一资源标识符，建立多播到单播转换的状态，分配端口，接收组播寻址数据分组，以及将多播寻址数据分组转换为单播寻址数据 数据包

公开(公告)号：US08335164B2

公开(公告)日：2012-12-18

申请号：US12084271

申请日：2005-11-02

申请人： Hang Liu

发明人： Hang Liu

IPC分类号： H04L12/26

CPC分类号： H04W40/02 ,  H04L45/124 ,  H04L45/125 ,  H04W40/14

摘要： A method and apparatus for calculating a routing metric for a wireless network including retrieving configured system parameters, selecting a form of a first weight factor based on channel load/utilization and parameters of the first weight factor, selecting a form of a second weight factor based on frame/packet error rate and parameters of the second weight factor, retrieving estimated link bit rate, measuring a channel/link busy time, estimating a channel/link load, estimating a packet/frame error rate of the link and calculating the metric are described. A method and system for determining a route/path between two nodes of a wireless network including calculating a weighted radio and load aware metric by each node in the wireless network, storing the metric and using the metric to select the route/path for communication between two nodes of the wireless network based on a sum of the metrics calculated by each node of the wireless network are also described.

摘要翻译： 一种用于计算无线网络的路由度量的方法和装置，包括检索配置的系统参数，基于信道负载/利用率和第一权重因子的参数选择第一权重因子的形式，基于第二权重因子的形式 关于帧/分组错误率和第二加权因子的参数，检索估计的链路比特率，测量信道/链路繁忙时间，估计信道/链路负载，估计链路的分组/帧错误率和计算度量 描述。 一种用于确定无线网络的两个节点之间的路由/路径的方法和系统，包括由无线网络中的每个节点计算加权的无线电和负载感知度量，存储度量并使用度量来选择用于在无线网络 还描述了基于由无线网络的每个节点计算的度量的总和的无线网络的两个节点。

公开(公告)号：US20120317197A1

公开(公告)日：2012-12-13

申请号：US13490045

申请日：2012-06-06

申请人： Xavier De Foy ,  Hang Liu ,  Shamim A. Rahman ,  Milan Patel ,  Serhad Doken ,  Osama Lotfallah

发明人： Xavier De Foy ,  Hang Liu ,  Shamim A. Rahman ,  Milan Patel ,  Serhad Doken ,  Osama Lotfallah

IPC分类号： G06F15/16

CPC分类号： H04L67/1093 ,  H04L12/66 ,  H04L67/1046 ,  H04L67/1063 ,  H04L67/1091 ,  H04L67/14 ,  H04L67/2852

摘要： A method and apparatus for use in a network storage control peer (NSCP) supporting peer to peer (P2P) operation are disclosed. The method includes receiving information from a tracker, wherein the information includes swarm stats, selecting and joining a swarm based on the received information, receiving a first stat report from the tracker, wherein the stat report includes additional swarm stats, determining whether to upload information to an ingestion gateway based on the received first stat report, transmitting an upload request message to the ingestion gateway, receiving an upload response from the ingestion gateway, and transmitting a second stat report to the tracker; wherein the second stat report includes a uniform resource identifier (URI) for the uploaded information.

摘要翻译： 公开了一种在支持对等（P2P）操作的网络存储控制对等体（NSCP）中使用的方法和装置。 该方法包括从跟踪器接收信息，其中所述信息包括群体统计，基于所接收的信息选择和加入群组，从跟踪者接收第一统计报告，其中所述统计报告包括额外的群体统计信息，确定是否上传信息 基于所接收的第一统计报告到摄取网关，向所述摄取网关发送上传请求消息，从所述摄取网关接收上传响应，以及向所述跟踪者发送第二统计报告; 其中所述第二统计报告包括所述上传信息的统一资源标识符（URI）。

公开(公告)号：US20120300663A1

公开(公告)日：2012-11-29

申请号：US13575646

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

CPC分类号： H04L1/1838 ,  H04L1/1671 ,  H04L1/1877

摘要： A method and apparatus are described including parsing an abstraction-layer header and assigning a priority to a packet to be transmitted. 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 or conditions, for example, packet loss rate. A network monitor may also be provided at a receiver for collecting current network statistics such as cumulative number of packets lost and for providing such statistics to a transmitter. The method further includes buffering the data to be transmitted along with the assigned priority, 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，包括解析抽象层报头并且为要发送的分组分配优先级。 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或条件（例如，丢包率）来决定哪些分组被重传。 也可以在接收机处提供网络监视器，用于收集当前网络统计信息，例如丢失的分组的累积数目和用于将这种统计信息提供给发射机。 该方法还包括缓冲要发送的数据与分配的优先级，经由数据报协议传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，并通过 提供数据端口到终端确认和错误恢复的协议。

公开(公告)号：US20120236842A1

公开(公告)日：2012-09-20

申请号：US13370028

申请日：2012-02-09

申请人： Xavier De Foy ,  Milan Patel ,  Kamel M. Shaheen ,  Debashish Purkayastha ,  Osama Lotfallah ,  Hang Liu

发明人： Xavier De Foy ,  Milan Patel ,  Kamel M. Shaheen ,  Debashish Purkayastha ,  Osama Lotfallah ,  Hang Liu

IPC分类号： H04W56/00

CPC分类号： H04W4/08 ,  H04L7/0008 ,  H04L65/1016 ,  H04L65/1063 ,  H04L65/1089 ,  H04L65/1093 ,  H04L65/4015 ,  H04L65/403 ,  H04L65/4084 ,  H04L67/10 ,  H04L67/14 ,  H04L67/141 ,  H04W56/001

摘要： A method and apparatus are described for synchronizing mobile station (i.e., wireless transmit/receive unit (WTRU)) media flows during a collaboration session. Inter-WTRU transfer request messages, flow addition request messages and session update request messages may be exchanged between a plurality of WTRUs and a session continuity control application server (SCC-AS). Each of the messages may include a session description protocol (SDP) attribute line containing time synchronization information (e.g., a presentation time offset (PTO) information element (IE), a media flow group identity (ID) and a synchronization tolerance IE). The SCC-AS may update the time synchronization information and include the updated information in messages it sends to the WTRUs, which may re-synchronize their respective media flows based on the updated time synchronization information.

摘要翻译： 描述了在协作会话期间同步移动台（即，无线发射/接收单元（WTRU））媒体流的方法和装置。 可以在多个WTRU和会话连续性控制应用服务器（SCC-AS）之间交换WTRU间传输请求消息，流添加请求消息和会话更新请求消息。 每个消息可以包括包含时间同步信息（例如，呈现时间偏移（PTO）信息元素（IE）），媒体流组标识（ID）和同步容限IE）的会话描述协议（SDP）属性行。 SCC-AS可以更新时间同步信息，并将更新的信息包括在其发送到WTRU的消息中，其可以基于更新的时间同步信息重新同步其各自的媒体流。

公开(公告)号：US20120207088A1

公开(公告)日：2012-08-16

申请号：US13369657

申请日：2012-02-09

申请人： Hang Liu ,  Xavier De Foy

发明人： Hang Liu ,  Xavier De Foy

IPC分类号： H04W4/00

CPC分类号： H04L67/2804 ,  H04L65/608 ,  H04L67/02 ,  H04W4/00

摘要： A method and apparatus are described for updating metadata, (e.g., media presentation descriptions (MPDs)). A wireless transmit/receive unit (WTRU) may transmit a hypertext transport protocol (HTTP) request message and receive an HTTP response message including metadata requested by the HTTP request message. The WTRU may then register with at least one server to establish a metadata update service based on information included in the metadata. The WTRU may fetch updated metadata in response to receiving a metadata update signal provided by the metadata update service. The information may identify a uniform resource identifier (URI) or a fully qualified domain name (FQDN) associated with an event server used to provide the metadata update service.

摘要翻译： 描述了用于更新元数据（例如，媒体呈现描述（MPD））的方法和装置。 无线发射/接收单元（WTRU）可以发送超文本传输​​协议（HTTP）请求消息，并且接收包括由HTTP请求消息请求的元数据的HTTP响应消息。 然后WTRU可以基于元数据中包含的信息，向至少一个服务器注册以建立元数据更新服务。 响应于接收到由元数据更新服务提供的元数据更新信号，WTRU可以获取更新的元数据。 信息可以标识与用于提供元数据更新服务的事件服务器相关联的统一资源标识符（URI）或完全限定域名（FQDN）。