Method and arrangement for local sychronization in master-slave distributed communication systems
    2.
    发明授权
    Method and arrangement for local sychronization in master-slave distributed communication systems 有权
    主从分布式通信系统中本地同步的方法和布置

    公开(公告)号:US08009702B2

    公开(公告)日:2011-08-30

    申请号:US12777439

    申请日:2010-05-11

    IPC分类号: H04J3/06

    摘要: A communication system which consists of several modules—operating in parallel on segments of a packet—to increase speed and handling capacity. One module acts as master, the others are slave modules controlled by control signals derived by the master module. It is important that in each module the data segment and the respective control signal of each packet are correctly synchronized, because in large systems the data paths carrying packet segments and the control signal paths may have substantially different delays. The invention provides for measurement of the propagation delay differences and for introducing a controlled delay in each slave module, so that data segments and control signals can be correctly correlated by delaying either the one or the other. Synchronization packets are transmitted besides normal data packets, for obtaining time stamps which are used to determine the delay difference.

    摘要翻译: 一种通信系统,由多个模块组成,在分组的分段上并行运行,以提高速度和处理能力。 一个模块作为主机,其他模块由主模块导出的控制信号控制的从模块。 重要的是,在每个模块中,数据段和每个分组的相应控制信号被正确同步,因为在大系统中,承载分组段和控制信号路径的数据路径可能具有显着不同的延迟。 本发明提供了传播延迟差的测量和用于在每个从模块中引入受控延迟,使得数据段和控制信号可以通过延迟其中一个或另一个来正确地相关。 同步数据包除正常数据包之外传输,用于获取用于确定延迟差的时间戳。

    Method to operate a crossbar switch
    3.
    发明申请
    Method to operate a crossbar switch 有权
    操纵交叉开关的方法

    公开(公告)号:US20080247411A1

    公开(公告)日:2008-10-09

    申请号:US12079854

    申请日:2008-03-28

    IPC分类号: H04L12/56

    CPC分类号: H04L49/552 H04L49/101

    摘要: A method is described to operate a crossbar switch comprising a crossbar fabric with N sending and M receiving ports, with port cards connected to at least one sending and/or receiving port each of the crossbar fabric, said crossbar switch further comprising a control unit connected with the port cards via discrete control channel links, wherein C ports are clustered on a single receiving port card so that such a receiving port card in a single time-step can receive up to C data cells from C sending port cards simultaneously. According to said method the control channel links are used to relay up to C acknowledgements between at least one receiving port card and at least one sending port card.

    摘要翻译: 描述了一种方法来操作包括具有N个发送和M个接收端口的交叉结构的交叉开关,其中端口卡连接到每个横梁结构的至少一个发送和/或接收端口,所述交叉开关还包括连接到控制单元 通过离散控制信道链路通过端口卡,其中C端口聚集在单个接收端口卡上,使得在单个时间步骤中的这种接收端口卡可以同时从C个发送端口卡接收多达C个数据信元。 根据所述方法,控制信道链路用于中继至少一个接收端口卡和至少一个发送端口卡之间的C个确认。

    Method and device for scheduling unicast and multicast traffic in an interconnecting fabric
    7.
    发明授权
    Method and device for scheduling unicast and multicast traffic in an interconnecting fabric 有权
    在互连结构中调度单播和组播流量的方法和设备

    公开(公告)号:US08121122B2

    公开(公告)日:2012-02-21

    申请号:US12047146

    申请日:2008-03-12

    IPC分类号: H04L12/28

    CPC分类号: H04L12/66

    摘要: A method for scheduling unicast and multicast traffic in an interconnecting fabric performs within each time slot the following steps. First a multicast cell scheduling (61) and independently thereof a unicast cell scheduling (62) is performed. Then, the unicast cell schedule and the multicast cell schedule are merged to a merged schedule (63), wherein in the case a scheduled connection cannot be included in the merged schedule the scheduled connection is included in the merged schedule in a later time slot (66, 63).

    摘要翻译: 在互连结构中调度单播和组播流量的方法在每个时隙内执行以下步骤。 首先,进行多播小区调度(61),并且独立地执行单播小区调度(62)。 然后,单播小区调度和多播小区调度被合并到合并的调度(63),其中在所述合并的调度中不能包括调度的连接的情况下,所调度的连接被包括在后面的时隙中的合并的调度中 66,63)。

    METHOD AND DEVICE FOR SCHEDULING UNICAST AND MULTICAST TRAFFIC IN AN INTERCONNECTING FABRIC
    8.
    发明申请
    METHOD AND DEVICE FOR SCHEDULING UNICAST AND MULTICAST TRAFFIC IN AN INTERCONNECTING FABRIC 有权
    用于在互连织物中排列间隔和多媒体交通的方法和装置

    公开(公告)号:US20080219269A1

    公开(公告)日:2008-09-11

    申请号:US12047146

    申请日:2008-03-12

    IPC分类号: H04L12/28

    CPC分类号: H04L12/66

    摘要: A method for scheduling unicast and multicast traffic in an interconnecting fabric performs within each time slot the following steps. First a multicast cell scheduling (61) and independently thereof a unicast cell scheduling (62) is performed. Then, the unicast cell schedule and the multicast cell schedule are merged to a merged schedule (63), wherein in the case a scheduled connection cannot be included in the merged schedule the scheduled connection is included in the merged schedule in a later time slot (66, 63).

    摘要翻译: 在互连结构中调度单播和组播流量的方法在每个时隙内执行以下步骤。 首先,进行多播小区调度(61),并且独立地执行单播小区调度(62)。 然后,单播小区调度和多播小区调度被合并到合并的调度(63),其中在所述合并的调度中不能包括调度的连接的情况下,所调度的连接被包括在后面的时隙中的合并的调度中 66,63)。

    METHOD AND ARRANGEMENT FOR LOCAL SYCHRONIZATION IN MASTER-SLAVE DISTRIBUTED COMMUNICATION SYSTEMS
    9.
    发明申请
    METHOD AND ARRANGEMENT FOR LOCAL SYCHRONIZATION IN MASTER-SLAVE DISTRIBUTED COMMUNICATION SYSTEMS 有权
    主从分布式通信系统中的本地协议的方法和布置

    公开(公告)号:US20100220749A1

    公开(公告)日:2010-09-02

    申请号:US12777439

    申请日:2010-05-11

    IPC分类号: H04J3/06

    摘要: A communication system which consists of several modules—operating in parallel on segments of a packet—to increase speed and handling capacity. One module acts as master, the others are slave modules controlled by control signals derived by the master module. It is important that in each module the data segment and the respective control signal of each packet are correctly synchronized, because in large systems the data paths carrying packet segments and the control signal paths may have substantially different delays. The invention provides for measurement of the propagation delay differences and for introducing a controlled delay in each slave module, so that data segments and control signals can be correctly correlated by delaying either the one or the other. Synchronization packets are transmitted besides normal data packets, for obtaining time stamps which are used to determine the delay difference.

    摘要翻译: 一种通信系统,由多个模块组成,在分组的分段上并行运行,以提高速度和处理能力。 一个模块作为主机,其他模块由主模块导出的控制信号控制的从模块。 重要的是,在每个模块中,数据段和每个分组的相应控制信号被正确同步,因为在大系统中,承载分组段和控制信号路径的数据路径可能具有显着不同的延迟。 本发明提供了传播延迟差的测量和用于在每个从模块中引入受控延迟,使得数据段和控制信号可以通过延迟其中一个或另一个来正确地相关。 同步数据包除正常数据包之外传输,用于获取用于确定延迟差的时间戳。

    Method and arrangement for local synchronization in master-slave distributed communication systems
    10.
    发明授权
    Method and arrangement for local synchronization in master-slave distributed communication systems 失效
    主从分布式通信系统中本地同步的方法和布置

    公开(公告)号:US07720105B2

    公开(公告)日:2010-05-18

    申请号:US10512671

    申请日:2003-03-31

    IPC分类号: H04L7/00

    摘要: For switching or transmitting data packets, one can provide communication systems which consist of several modules —operating in parallel on segments of a packet —to increase speed and handling capacity. One module acts as master, others are slave modules controlled by control signals derived by the master module. It is important to correctly synchronize in each module the data segment and the respective control signal of each packet, because in large systems the data paths carrying packet segments and the control signal paths may have substantially different delays. The invention provides for measurement of the propagation delay differences and for introducing a controlled delay in each slave module, so that data segments and control signals can be correctly correlated by delaying either the one or the other. Synchronization packets are transmitted besides normal data packets, for obtaining time stamps which are used to determine the delay difference.

    摘要翻译: 对于切换或传输数据分组,可以提供由多个模块组成的通信系统,这些模块在分组的段上并行运行,以提高速度和处理能力。 一个模块作为主机,另一个模块是由主模块导出的控制信号控制的从模块。 在每个模块中正确同步数据段和每个数据包的相应控制信号是很重要的,因为在大型系统中,携带数据包的数据路径和控制信号路径可能具有显着不同的延迟。 本发明提供了传播延迟差的测量和用于在每个从模块中引入受控延迟,使得数据段和控制信号可以通过延迟其中一个或另一个来正确地相关。 同步数据包除正常数据包之外传输,用于获取用于确定延迟差的时间戳。