Tuning congestion control in IP multicast to mitigate the impact of blockage
    1.
    发明授权
    Tuning congestion control in IP multicast to mitigate the impact of blockage 有权
    调整IP组播中的拥塞控制,减轻阻塞的影响

    公开(公告)号:US08248936B2

    公开(公告)日:2012-08-21

    申请号:US12588811

    申请日:2009-10-28

    IPC分类号: H04L12/26 H04J3/22

    摘要: An IP multicast broadcast device, an IP multicast receiver device, and a method of congestion control in reliable IP multicast are described that mitigate the impact of signal blockage in radio-based IP multicast networks. In one example multicast network, the IP multicast broadcast device, and the IP multicast receiver devices may be configured to support an IGMP-based multicast protocol in which a NORM protocol, a congested packet marking protocol, e.g., such as the ECN protocol described above, and a router congestion prediction protocol, e.g., such as the RED protocol, have been implemented. In addition, the implemented NORM protocol may implement a TCP congestion control algorithm that generates adjusted transmission rates based, at least in part, on a count of ECN congestion marked packets and a count of dropped packets at a selected receiver. As a result, the generated transmission rates are not unduly affected blockage of the radio-based transmission signal.

    摘要翻译: 描述了一种IP组播广播设备,IP组播接收设备和可靠IP组播中的拥塞控制方法,以减轻基于无线电的IP组播网络中信号阻塞的影响。 在一个示例性组播网络中,IP组播广播设备和IP组播接收机设备可以被配置为支持基于IGMP的多播协议,其中,NORM协议,诸如上述的ECN协议的拥塞分组标记协议 ,并且已经实现了诸如RED协议的路由器拥塞预测协议。 另外,实施的NORM协议可以实现一个TCP拥塞控制算法,该算法至少部分地基于ECN拥塞标记分组的计数和所选择的接收机处的丢弃分组的计数来生成调整的传输速率。 结果,生成的传输速率不会对基于无线电的传输信号的阻塞造成不适当的影响。

    Tuning congestion control in IP multicast to mitigate the impact of blockage
    2.
    发明申请
    Tuning congestion control in IP multicast to mitigate the impact of blockage 有权
    调整IP组播中的拥塞控制,减轻阻塞的影响

    公开(公告)号:US20100254262A1

    公开(公告)日:2010-10-07

    申请号:US12588811

    申请日:2009-10-28

    IPC分类号: H04L12/56

    摘要: An IP multicast broadcast device, an IP multicast receiver device, and a method of congestion control in reliable IP multicast are described that mitigate the impact of signal blockage in radio-based IP multicast networks. In one example multicast network, the IP multicast broadcast device, and the IP multicast receiver devices may be configured to support an IGMP-based multicast protocol in which a NORM protocol, a congested packet marking protocol, e.g., such as the ECN protocol described above, and a router congestion prediction protocol, e.g., such as the RED protocol, have been implemented. In addition, the implemented NORM protocol may implement a TCP congestion control algorithm that generates adjusted transmission rates based, at least in part, on a count of ECN congestion marked packets and a count of dropped packets at a selected receiver. As a result, the generated transmission rates are not unduly affected blockage of the radio-based transmission signal.

    摘要翻译: 描述了一种IP组播广播设备,IP组播接收设备和可靠IP组播中的拥塞控制方法,以减轻基于无线电的IP组播网络中信号阻塞的影响。 在一个示例性组播网络中,IP组播广播设备和IP组播接收机设备可以被配置为支持基于IGMP的多播协议,其中,NORM协议,诸如上述的ECN协议的拥塞分组标记协议 ,并且已经实现了诸如RED协议的路由器拥塞预测协议。 另外,实施的NORM协议可以实现一个TCP拥塞控制算法,该算法至少部分地基于ECN拥塞标记分组的计数和所选择的接收机处的丢弃分组的计数来生成调整的传输速率。 结果,生成的传输速率不会对基于无线电的传输信号的阻塞造成不适当的影响。

    Dynamic allocation of network resources in a multiple-user communication system
    3.
    发明授权
    Dynamic allocation of network resources in a multiple-user communication system 失效
    在多用户通信系统中动态分配网络资源

    公开(公告)号:US07366134B2

    公开(公告)日:2008-04-29

    申请号:US10362560

    申请日:2001-08-17

    IPC分类号: H04Q7/00

    摘要: In a multiple-user network communication system such as a satellite-based system, or in cable or wireless systems, the system resources, such as bandwidth, code allocation, and or slot timing, are allocated to users based in part on their class of service. The allocation provides for immediate allocation of the requested resources to a user having a verified high class of service so long as the resources are abatable or can be made available by tapping a resource reserve. If only a portion of the requested resources are available, they are made available immediately. From time to time, the resources available to at least one class of service are allocated among the users of that class of service, either equally, equally up to the requested resources, equitably, or in some systematic manner.

    摘要翻译: 在诸如基于卫星的系统或有线或无线系统的多用户网络通信系统中,诸如带宽,代码分配和时隙定时等系统资源被分配给用户,部分基于它们的类别 服务。 只要资源可靠,或者可以通过点击资源储备,该分配就可以将所请求的资源立即分配给具有经过验证的高等级服务的用户。 如果只有一部分所请求的资源可用,则它们将立即可用。 可以不时地将可用于至少一类服务的资源分配给该等级的服务的用户,平等地等同于所请求的资源,公平地或以某种系统的方式。

    Technique for improving asynchronous transfer mode operation over a
communications link with bursty bit errors
    4.
    发明授权
    Technique for improving asynchronous transfer mode operation over a communications link with bursty bit errors 失效
    通过具有突发位错误的通信链路改进异步传输模式操作的技术

    公开(公告)号:US5600653A

    公开(公告)日:1997-02-04

    申请号:US315485

    申请日:1994-09-30

    IPC分类号: H04L1/00 H04L12/56 H04Q11/04

    摘要: In an asynchronous transfer mode (ATM) system, interleaved cells are formed at the transmit end by combining into each interleaved cell certain bits from each of plural different original ATM cells, the interleaved cells are transmitted over the communications link, and then deinterleaved at the receive end. Any bursty errors occurring on the communications link will, after deinterleaving, be spread out over multiple original ATM cells, maximizing the error correction for ATM cells and error detection for AAL capability and minimizing loss of data. The C1 byte in the Physical Layer Convergence Protocol (PLCP), which indicates the location of end of the PLCP frame, is protected against the burst errors by replication of C1 byte through inserting them in the growth bytes Z1 through Z4.

    摘要翻译: 在异步传输模式(ATM)系统中,在发送端通过将多个不同的原始ATM信元中的每一个组合成特定的比特,在发送端形成交织的小区,通过通信链路传送交织的小区,然后在 接收结束 通信链路上发生的任何突发性错误将在解交织之后分散在多个原始ATM信元上,最大化ATM信元的纠错和AAL能力的错误检测,并最大限度地减少数据丢失。 通过将C1字节插入到增长字节Z1到Z4中,通过复制C1字节来保护表示PLCP帧结束位置的物理层汇聚协议(PLCP)中的C1字节。