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    Seamless Handover of Multicast Sessions in Internet Protocol Based Wireless Networks Using Staggercasting
    4.
    发明申请
    Seamless Handover of Multicast Sessions in Internet Protocol Based Wireless Networks Using Staggercasting 有权
    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广播

    公开(公告)号：US20090319845A1

    公开(公告)日：2009-12-24

    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： H04L1/00 ,  G06F11/07 ,  H03M13/05 ,  G06F11/10

    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。

    Seamless handover of multicast sessions in internet protocol based wireless networks using staggercasting
    8.
    发明授权
    Seamless handover of multicast sessions in internet protocol based wireless networks using staggercasting 有权
    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。

    Combining bandwidth aware routing with channel selection and switching in a multi-hop wireless home network
    10.
    发明授权
    Combining bandwidth aware routing with channel selection and switching in a multi-hop wireless home network 有权
    将带宽感知路由与多跳无线家庭网络中的信道选择和交换相结合

    公开(公告)号：US09155019B2

    公开(公告)日：2015-10-06

    申请号：US13814868

    申请日：2010-08-11

    申请人： Mingquan Wu ,  Hang Liu ,  Saurabh Mathur

    发明人： Mingquan Wu ,  Hang Liu ,  Saurabh Mathur

    IPC分类号： H04W40/12 ,  H04W36/06 ,  H04L12/729 ,  H04W40/28

    CPC分类号： H04W40/12 ,  H04L45/125 ,  H04W36/06 ,  H04W40/28

    摘要： A method and apparatus are described including selecting a first route between a source node and a destination node using a bandwidth-aware routing protocol, determining if the selected first route satisfies a bandwidth requirement of an application of the source node, initiating a switch to a new channel selected from a back-up channel list if the bandwidth requirement of the application is not satisfied by the selected route, selecting a second route over the new channel using the bandwidth-aware routing protocol, determining if the selected second route over the new channel satisfies the bandwidth requirement of the application of the source node and streaming data from the source node to the destination node if the selected first route satisfies the bandwidth requirement of the application or if the selected second route over the new channel satisfies the bandwidth requirement of the application.

    摘要翻译： 描述了一种方法和装置，其包括使用带宽感知路由协议选择源节点和目的地节点之间的第一路由，确定所选择的第一路由是否满足源节点的应用的带宽需求，发起切换到 如果所选择的路由不满足应用的带宽需求，则从备用频道列表中选择新的频道，通过使用带宽感知路由协议在新频道上选择第二路由，确定所选新的第二路由 如果所选择的第一路由满足应用的带宽需求，或者如果新信道上所选择的第二路由满足带宽要求，则满足源节点应用的带宽需求和从源节点到目的节点的流数据 应用程序。