System and method for fast start-up of live multicast streams transmitted over a packet network
    2.
    发明授权
    System and method for fast start-up of live multicast streams transmitted over a packet network 有权
    通过分组网络快速启动实时组播流的系统和方法

    公开(公告)号:US08495688B2

    公开(公告)日:2013-07-23

    申请号:US12930063

    申请日:2010-12-27

    CPC分类号: H04L12/2854

    摘要: A system for multicast streaming of programs over a packet network includes a node having a processor that conditions a video bitstream such that packets containing an I-frame are located near program specific information (PSI) packets, the processor marking a random join point (RJP) in the video bitstream immediately preceding the I-frame and PSI packets, the node outputting the conditioned and marked video bitstream across the packet network. An edge device of the network includes a buffer that caches packets of the conditioned and marked video bitstream video starting at the RJP, and sends the cached packets to a client receiver.

    摘要翻译: 用于通过分组网络的节目的多播流的系统包括具有处理器的节点,所述处理器调整视频比特流,使得包含I帧的分组位于节目特定信息(PSI)分组附近,处理器标记随机连接点(RJP )在紧邻I帧和PSI分组之前的视频比特流中,节点通过分组网络输出经调节和标记的视频比特流。 该网络的边缘设备包括一个缓冲器,该缓冲器缓存从RJP开始的经调节和标记的视频比特流视频的分组,并将缓存的分组发送到客户机接收机。

    System and method for fast start-up of live multicast streams transmitted over a packet network
    3.
    发明授权
    System and method for fast start-up of live multicast streams transmitted over a packet network 有权
    通过分组网络快速启动实时组播流的系统和方法

    公开(公告)号:US07870590B2

    公开(公告)日:2011-01-11

    申请号:US10969113

    申请日:2004-10-20

    CPC分类号: H04L12/2854

    摘要: A system for multicast streaming of programs over a packet network includes a node having a processor that conditions a video bitstream such that packets containing an I-frame are located near program specific information (PSI) packets, the processor marking a random join point (RJP) in the video bitstream immediately preceding the I-frame and PSI packets, the node outputting the conditioned and marked video bitstream across the packet network. An edge device of the network includes a buffer that caches packets of the conditioned and marked video bitstream video starting at the RJP, and sends the cached packets to a client receiver.

    摘要翻译: 用于通过分组网络的节目的多播流的系统包括具有处理器的节点,所述处理器调整视频比特流,使得包含I帧的分组位于节目特定信息(PSI)分组附近,处理器标记随机连接点(RJP )在紧邻I帧和PSI分组之前的视频比特流中,节点通过分组网络输出经调节和标记的视频比特流。 该网络的边缘设备包括一个缓冲器,该缓冲器缓存从RJP开始的经调节和标记的视频比特流视频的分组,并将缓存的分组发送到客户机接收机。

    Method and system for triggering handoff of a call between networks
    5.
    发明授权
    Method and system for triggering handoff of a call between networks 有权
    用于触发网络之间呼叫切换的方法和系统

    公开(公告)号:US07738873B2

    公开(公告)日:2010-06-15

    申请号:US11944950

    申请日:2007-11-26

    IPC分类号: H04W36/00

    摘要: A method for handing off a call between networks includes monitoring a quality of a first link between a mobile station and a wireless local area network (WLAN) when the mobile station is actively connected with the WLAN on a call and monitoring a quality of a second link between the mobile station and a cellular network when the mobile station is actively connected with the WLAN on the call. The method also includes handing off the call from the WLAN to the cellular network when the quality of the first link is less than a handoff trigger threshold for a drop count duration and when the quality of the second link is greater than a minimum cellular link quality threshold.

    摘要翻译: 一种用于在网络之间切换呼叫的方法包括当移动台在呼叫上与WLAN主动连接时监视移动台与无线局域网(WLAN)之间的第一链路的质量,并监视第二个 当移动台与呼叫中的WLAN主动连接时,移动台与蜂窝网络之间的链路。 当第一链路的质量小于丢弃计数持续时间的切换触发阈值时,以及当第二链路的质量大于最小蜂窝链路质量时,该方法还包括将呼叫从WLAN切换到蜂窝网络 阈。

    Location based handoff
    7.
    发明授权
    Location based handoff 有权
    基于位置的切换

    公开(公告)号:US08249596B2

    公开(公告)日:2012-08-21

    申请号:US12030050

    申请日:2008-02-12

    IPC分类号: H04W36/00

    CPC分类号: H04W36/32

    摘要: A method includes determining a coverage area for each of a plurality of base stations. The method also includes receiving a first location parameter indicative of a mobile unit's location. The method further includes transitioning a first connection between the mobile unit and a first base station of the plurality of base stations to a second connection between the mobile unit and a second base station of the plurality of base stations. The transition is based on the coverage areas of the first base station and the second base station and the first location parameter.

    摘要翻译: 一种方法包括确定多个基站中的每一个的覆盖区域。 该方法还包括接收指示移动单元位置的第一位置参数。 该方法还包括将移动单元与多个基站中的第一基站之间的第一连接转换到移动单元与多个基站中的第二基站之间的第二连接。 该转换基于第一基站和第二基站的覆盖区域以及第一位置参数。