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    Techniques for network traffic engineering
    2.
    发明申请
    Techniques for network traffic engineering 审中-公开
    网络流量工程技术

    公开(公告)号：US20050008014A1

    公开(公告)日：2005-01-13

    申请号：US10614738

    申请日：2003-07-07

    申请人： Debasis Mitra ,  Iraj Saniee ,  Anwar Walid ,  Indra Widjaja

    发明人： Debasis Mitra ,  Iraj Saniee ,  Anwar Walid ,  Indra Widjaja

    IPC分类号： H04L12/28 ,  H04L12/56

    CPC分类号： H04L45/00 ,  H04L45/124

    摘要： In a traffic engineering technique, a determination is made as to whether any path of a number of predetermined paths meets requirements corresponding to a request. The predetermined paths are determined by substantially maximizing carried demand using at least traffic demand estimates and network topology information and by performing routing for the substantially maximized carried demand. If a given path meeting the requirements is found, a connection on the given path is created, if possible. The predetermined paths are determined through offline TE techniques referred to herein as offline design-based routing (DBR). The requirements for the path may include a destination address and a bandwidth. The offline DBR techniques can include uncertain static demand information or dynamic connections. The offline DBR techniques may be used with adaptive DBR techniques, such that paths are determined offline if possible but can also use shortest path first (SPF), constrained SPF (CSPF) or other techniques during an online path determination. An improvement to a conventional CSPF technique is also presented.

    摘要翻译： 在交通工程技术中，确定多个预定路径的任何路径是否满足与请求相对应的要求。 通过使用至少业务需求估计和网络拓扑信息并且通过执行基本上最大化的携带需求的路由，基本上最大化承载需求来确定预定路径。 如果找到满足要求的给定路径，则可以创建给定路径上的连接。 通过本文中称为基于离线设计的路由（DBR）的离线TE技术确定预定路径。 路径的要求可以包括目的地址和带宽。 离线DBR技术可以包括不确定的静态需求信息或动态连接。 离线DBR技术可以与自适应DBR技术一起使用，使得如果可能的话，路径被确定离线，但是在线路径确定期间也可以使用最短路径优先（SPF），约束SPF（CSPF）或其他技术。 还提出了对常规CSPF技术的改进。

    System and method for WDM communication with interleaving of optical signals for efficient wavelength utilization
    4.
    发明授权
    System and method for WDM communication with interleaving of optical signals for efficient wavelength utilization 失效
    用于WDM通信与光信号交错的系统和方法，用于有效的波长利用

    公开(公告)号：US07283753B2

    公开(公告)日：2007-10-16

    申请号：US10426388

    申请日：2003-04-30

    申请人： Randy Clinton Giles ,  Debasis Mitra ,  Iraj Saniee ,  Indra Widjaja ,  Martin Zirngibl

    发明人： Randy Clinton Giles ,  Debasis Mitra ,  Iraj Saniee ,  Indra Widjaja ,  Martin Zirngibl

    IPC分类号： H04B10/00

    CPC分类号： H04Q11/0066 ,  H04Q2011/0064

    摘要： In a system and method of optical communication, optical signals are generated in multiple wavelength channels. Each optical signal is passively transported from an origination node of a network to a destination node. The destination node is determined by the signal wavelength. For at least some signals, the passive transport includes transport through a branch point of the network, such that the signal wavelength determines the output branch through which the signal is routed. In certain embodiments, signals are generated according to a schedule devised to substantially prevent the concurrent arrival, at the same destination node, of signals having the same wavelength but coming from different origination nodes.

    摘要翻译： 在光通信的系统和方法中，在多个波长信道中产生光信号。 每个光信号被动地从网络的始发节点传送到目的地节点。 目的地节点由信号波长决定。 对于至少一些信号，被动传输包括通过网络的分支点的传输，使得信号波长确定信号被路由的输出分支。 在某些实施例中，根据设计的基本上防止在相同目的地节点处同时到达具有相同波长但来自不同起始节点的信号的调度的信号被生成。

    Intelligent media gateway selection for multimedia communication sessions
    7.
    发明授权
    Intelligent media gateway selection for multimedia communication sessions 有权
    智能媒体网关选择多媒体通信会话

    公开(公告)号：US08937957B2

    公开(公告)日：2015-01-20

    申请号：US11351367

    申请日：2006-02-10

    申请人： Debasis Mitra ,  Iraj Saniee ,  Anwar I. Walid ,  Indra Widjaja

    发明人： Debasis Mitra ,  Iraj Saniee ,  Anwar I. Walid ,  Indra Widjaja

    IPC分类号： H04L12/28 ,  H04L29/06

    CPC分类号： H04L29/06027 ,  H04L65/103 ,  H04L65/104 ,  H04L65/80

    摘要： A method of operating a packet network includes the step of selecting one of a plurality of candidate gateways to connect a multimedia communication session between the packet network and a TDM network. The packet network has a source node of the multimedia communication session, and the TDM network has a destination of the multimedia communication session. The candidate gateways interconnect the packet network and the TDM network. The selecting step includes comparing end-to-end congestions for bearer traffic between the source node and different candidate gateways of the plurality.

    摘要翻译： 操作分组网络的方法包括选择多个候选网关中的一个连接分组网络和TDM网络之间的多媒体通信会话的步骤。 分组网络具有多媒体通信会话的源节点，TDM网络具有多媒体通信会话的目的地。 候选网关将分组网络和TDM网络互连。 所述选择步骤包括比较所述源节点与所述多个节点的不同候选网关之间的承载业务的端对端拥塞。

    Flow control and congestion management for random scheduling in time-domain wavelength interleaved networks
    9.
    发明授权
    Flow control and congestion management for random scheduling in time-domain wavelength interleaved networks 有权
    用于时域波长交织网络中随机调度的流量控制和拥塞管理

    公开(公告)号：US07573815B2

    公开(公告)日：2009-08-11

    申请号：US11072163

    申请日：2005-03-04

    申请人： Andrew Brzezinski ,  Iraj Saniee ,  Indra Widjaja

    发明人： Andrew Brzezinski ,  Iraj Saniee ,  Indra Widjaja

    IPC分类号： H04L12/26

    CPC分类号： H04L47/10 ,  H04L47/263 ,  H04Q11/0066 ,  H04Q2011/0033 ,  H04Q2011/0064 ,  H04Q2011/0086

    摘要： Flow control techniques are disclosed for use in data communications networks such as those implementing a time-domain wavelength interleaved network (TWIN) architecture or other suitable architectures. Such techniques may provide for congestion management and scheduling for asynchronous traffic. For example, in one aspect, a technique comprises collecting information at a node of an optical-based communications network, wherein at least a portion of the collected information pertains to congestion in the optical-based communications network, and adjusting a transmission rate of the node in response to at least a portion of the collected information such that the node operates under a substantially stable transmission schedule with respect to asynchronous data bursts. The transmission rate adjusting step/operation may further comprise adjusting the transmission rate such that the node operates under a substantially fair transmission schedule. The node may operate under a random transmission schedule.

    摘要翻译： 公开了用于数据通信网络中的流控制技术，例如实现时域波长交织网络（TWIN）架构或其他合适架构的流量控制技术。 这样的技术可以提供用于异步业务的拥塞管理和调度。 例如，在一个方面，一种技术包括在基于光学的通信网络的节点处收集信息，其中所收集的信息的至少一部分涉及基于光学的通信网络中的拥塞，并且调整所述光通信网络的传输速率 响应于所收集的信息的至少一部分，使得节点在相对于异步数据突发的基本上稳定的传输调度下操作。 传输速率调整步骤/操作可以进一步包括调整传输速率，使得节点在基本公平的传输调度下运行。 节点可以在随机传输调度下操作。

    Intelligent media gateway selection for multimedia communication sessions
    10.
    发明申请
    Intelligent media gateway selection for multimedia communication sessions 有权
    智能媒体网关选择多媒体通信会话

    公开(公告)号：US20070189268A1

    公开(公告)日：2007-08-16

    申请号：US11351367

    申请日：2006-02-10

    申请人： Debasis Mitra ,  Iraj Saniee ,  Anwar Walid ,  Indra Widjaja

    发明人： Debasis Mitra ,  Iraj Saniee ,  Anwar Walid ,  Indra Widjaja

    IPC分类号： H04L12/66 ,  H04L12/56

    CPC分类号： H04L29/06027 ,  H04L65/103 ,  H04L65/104 ,  H04L65/80

    摘要： A method of operating a packet network includes the step of selecting one of a plurality of candidate gateways to connect a multimedia communication session between the packet network and a TDM network. The packet network has a source node of the multimedia communication session, and the TDM network has a destination of the multimedia communication session. The candidate gateways interconnect the packet network and the TDM network. The selecting step includes comparing end-to-end congestions for bearer traffic between the source node and different candidate gateways of the plurality.

    摘要翻译： 操作分组网络的方法包括选择多个候选网关中的一个连接分组网络和TDM网络之间的多媒体通信会话的步骤。 分组网络具有多媒体通信会话的源节点，TDM网络具有多媒体通信会话的目的地。 候选网关将分组网络和TDM网络互连。 所述选择步骤包括比较所述源节点与所述多个节点的不同候选网关之间的承载业务的端对端拥塞。