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1. 发明专利

CA2182455C DIGITAL SIGNAL BROADCASTING 未知
公开(公告)号：CA2182455C
公开(公告)日：2000-08-15
申请号：CA2182455
申请日：1996-07-31
申请人： CASEY LIAM M , ALLAN DAVID I
发明人： CASEY LIAM M , ALLAN DAVID I
IPC分类号： H04H20/95 , H04H60/23 , H04L29/06 , H04N19/61 , H04L12/56 , H04N7/50
摘要： A distribution network groups television program signals into service tiers. To provide these from unsynchronized MPEG streams without resynchronization, each stream, representing a single program signal is encapsulated into ATM cells with a virtual path(VP) identification of each ATM cell corresponding to the service tier and a virtual channel (VC) identification corresponding to the respective program signal. Payloads in cells having the same VP are scrambled using a scrambling key allocated to that VP and hence to the corresponding service tier, and are unscrambled by entitled subscribers using the scrambling key which is supplied to them individually using public/private encryption techniques.

2. 发明申请

WO2010071978A1 A METHOD FOR OPERATING MULTI-DOMAIN PROVIDER ETHERNET NETWORKS 审中-公开
标题翻译：一种用于操作多域提供商以太网网络的方法
公开(公告)号：WO2010071978A1
公开(公告)日：2010-07-01
申请号：PCT/CA2009/001676
申请日：2009-11-25
申请人： NORTEL NETWORKS LIMITED , CASEY, Liam
发明人： CASEY, Liam
IPC分类号： H04L12/66 , H04L12/40
CPC分类号： H04L63/10 , H04L12/2856 , H04L12/4633 , H04L12/4658 , H04L12/4662 , H04L63/02 , H04L63/08
摘要： A method of enabling extension of a network service of a first domain to a remote customer site hosted by an Access Gateway (AG) in a Provider Ethernet domain. In the first domain, the remote customer site is represented as being hosted by a border gateway (BG) connected to the Provider Ethernet domain, such that subscriber packets associated with the network service are forwarded to or from the remote customer site via the BG. In the Provider Ethernet domain, a trunk connection is instantiated through the Provider Ethernet domain between the host AG and the BG A trunk cross-connection function is installed in the host AG, for transferring subscriber packets associated with the network service between a respective attachment virtual circuit (AVC) through which the remote customer site is connected to the host AG and an extended AVC tunnelled through the trunk connection. A common service instance identifier (I-SID) is used to identity both the AVC between the host AG and the remote customer site and the extended AVC between the host AG and the BG
摘要翻译：一种能够将第一域的网络服务扩展到由提供商以太网域中的接入网关（AG）托管的远程客户站点的方法。在第一域中，远程客户站点被表示为由连接到提供商以太网域的边界网关（BG）托管，使得与网络服务相关联的用户分组经由BG被转发到远程客户站点或从远程客户站点转发。在提供商以太网域中，通过主机AG和BG之间的提供商以太网域实例化中继线连接在主机AG中安装中继交叉连接功能，用于将相关联的网络服务的用户分组传送到相应的附件虚拟电路（AVC），远程客户站点通过该电路连接到主机AG，并通过中继线连接隧道扩展的AVC。公共服务实例标识符（I-SID）用于标识主机AG和远程客户站点之间的AVC以及主机AG与BG之间的扩展AVC

3. 发明申请

WO2008070957A1 PINNING THE ROUTE OF IP BEARER FLOWS IN A NEXT GENERATION NETWORK 审中-公开
标题翻译：在下一代网络中密封IP承载流的路由
公开(公告)号：WO2008070957A1
公开(公告)日：2008-06-19
申请号：PCT/CA2007/002045
申请日：2007-11-15
申请人： NORTEL NETWORKS LIMITED , CASEY, Liam
发明人： CASEY, Liam
IPC分类号： H04L12/12 , H04L29/06
CPC分类号： H04L65/104 , H04L12/14 , H04L12/1446 , H04L12/1485 , H04L29/125 , H04L45/00 , H04L61/2564 , H04L65/1016 , H04L65/80
摘要： Methods and systems for extending the IMS/SIP architecture of the NGN to provide QoS service to generic bearer flows. More particularly, a method is provided for establishing an bearer end-to-end path of a communication session in a multi-domain communication network in which an out of band signalling protocol is used to establish communications sessions. The method comprises receiving an out-of-band signalling message including information representative of at least an opposite end point of a first bearer segment of the end-to-end path. The information is used to define a cross-connect mapping through a node of the network between respective local endpoints of the first bearer segment and a second bearer segment hosted by the node. Information representative of the cross-connect mapping is then inserted into the out-of-band signalling message, and the out-of-band signalling message forwarded.
摘要翻译：用于扩展NGN的IMS / SIP架构以向通用承载流提供QoS服务的方法和系统。更具体地，提供了一种用于在多域通信网络中建立通信会话的承载端到端路径的方法，其中使用带外信令协议来建立通信会话。该方法包括：接收带外信令消息，该消息包括表示端对端路径的第一承载段的至少相对端点的信息。该信息用于定义通过第一承载段的相应本地端点与由该节点托管的第二承载段之间的网络节点的交叉连接映射。然后将代表交叉连接映射的信息插入到带外信令消息中，并且转发带外信令消息。

4. 发明申请

WO2015077878A1 SWITCHED PATH AGGREGATION FOR DATA CENTERS 审中-公开
标题翻译：数据中心切换路径聚合
公开(公告)号：WO2015077878A1
公开(公告)日：2015-06-04
申请号：PCT/CA2014/051121
申请日：2014-11-25
申请人： ROCKSTAR CONSORTIUM US LP , CASEY, Liam
发明人： CASEY, Liam
IPC分类号： H04L12/723 , H04L12/28 , H04L12/751
CPC分类号： H04L12/4633 , H04L12/462 , H04L45/50 , H04L45/66 , H04Q11/0005 , Y02D30/30
摘要： Techniques for forwarding packets across a hierarchical organization of switches constituting a network for the purpose of interconnecting a large number of client systems. The network includes at least two layers of packet switching elements, each switching element of one layer being connected to switching elements of another layer. The method may be performed by a control system which is distinct from the packet switching elements. A topology of the network is acquired, and one or more paths are calculated between a respective pairs of packet switching elements of one layer, via at least one packet switching element of another layer. Forwarding state is installed in each packet switching element traversed by a path, such that packets can be forwarded via the path. The paths are analyzed to find paths that can be aggregated, and aggregating at least two paths into a switched path aggregation group.
摘要翻译：用于在构成网络的交换机的分层组织中转发分组以用于互连大量客户端系统的技术。该网络包括至少两层分组交换单元，一层的每个开关元件连接到另一层的开关元件。该方法可以由与分组交换元件不同的控制系统来执行。获取网络的拓扑，并且通过另一层的至少一个分组交换元件在一层的各个分组交换单元对之间计算一个或多个路径。转发状态安装在由路径遍历的每个分组交换元件中，使得分组可以经由路径转发。分析路径以查找可聚合的路径，并将至少两条路径聚合到交换路径聚合组中。

5. 发明申请

WO2009137928A1 A MECHANISM TO DIVERT AN IP FLOW OVER A NON-IP TRANSPORT 审中-公开
标题翻译：通过非IP传输传播IP流的机制
公开(公告)号：WO2009137928A1
公开(公告)日：2009-11-19
申请号：PCT/CA2009/000659
申请日：2009-05-12
申请人： NORTEL NETWORKS LIMITED , CASEY, Liam
发明人： CASEY, Liam
IPC分类号： H04L12/66 , H04L29/06 , H04N7/16
CPC分类号： H04N21/4363 , H04L65/103 , H04L65/4076 , H04N21/64322 , H04N21/64707 , H04N21/6587
摘要： Session flows between a client (1) and a server (2) are pinned through a receiving interworking unit (7) and a transmitting interworking unit (11) connected via the non-IP based communications path (9). The receiving interworking unit (7) and transmitting interworking unit (11) are then configured to convert received data between IP and a non-IP based communications protocols. Subsequently, when the transmitting interworking unit (11) receives IP protocol based data for the client (1) from the server (2) the data is converted and transmitted via the non-IP based communications link to the receiving interworking unit (7). Upon receipt, the receiving interworking unit (7) converts the data back into an IP-protocol based format and forwards the converted data on to the client (1). The disclosed approach enables the client (1), to receive a regular IP packet stream from the server (2), where: one segment (9) of the path between server (2) and client (1) transports the data in a non-IP format; and neither IP client (1) nor the server (2) is aware of the non IP segment and no change in their all IP network mode of operation is required.
摘要翻译：在客户端（1）和服务器（2）之间的会话流经由经由非基于IP的通信路径（9）连接的接收互通单元（7）和传输互通单元（11）固定。然后，接收互通单元（7）和发送互通单元（11）被配置为在IP和非基于IP的通信协议之间转换接收的数据。随后，当发送互通单元（11）从服务器（2）接收到用于客户端（1）的基于IP协议的数据时，数据经由非基于IP的通信链路被转换和发送到接收交互单元（7）。接收到的接收互通单元（7）将数据转换成基于IP协议的格式，并将转换的数据转发给客户端（1）。所公开的方法使得客户端（1）能够从服务器（2）接收常规的IP分组流，其中：服务器（2）和客户端（1）之间的路径的一个段（9）以非 - -IP格式; 并且IP客户端（1）和服务器（2）都不知道非IP段，并且不需要其所有IP网络运行模式的改变。

6. 发明申请

WO2008070959A1 PROVIDING SIP INTERWORKING IN A NEXT GENERATION NETWORK 审中-公开
标题翻译：在下一代网络中提供SIP交互
公开(公告)号：WO2008070959A1
公开(公告)日：2008-06-19
申请号：PCT/CA2007/002047
申请日：2007-11-15
申请人： NORTEL NETWORKS LIMITED , CASEY, Liam
发明人： CASEY, Liam
IPC分类号： H04L12/12 , H04L29/02 , H04L29/06
CPC分类号： H04L65/1036 , H04L65/1006 , H04L65/1016 , H04L65/1033 , H04L65/1069 , H04L65/80
摘要： Methods and systems for extending the IMS/SIP architecture of the NGN to provide QoS service to generic bearer flows. Providing QoS treatment of a bearer flow within a communication session established between two end devices using a different in-band signalling protocol is supported. A Signalling Inter-Working Function (SIWF) is provided in a path of the in-band signalling between the two end devices. The SIWF is operative to: detect at least a signal state of the in-band signalling; and establish a communications session with QoS treatment of bearer flows spanning at least a portion of an end-to-end path between the two end points, based on the detected signal state.
摘要翻译：用于扩展NGN的IMS / SIP架构的方法和系统，以向通用承载流提供QoS服务。在使用不同带内信令协议的两个终端设备之间建立的通信会话中提供对承载流的QoS处理。在两个终端设备之间的带内信令的路径中提供信令互用功能（SIWF）。 SIWF可操作用于：至少检测带内信令的信号状态; 并且基于检测到的信号状态，建立与跨越两个端点之间的端到端路径的至少一部分的承载流的QoS处理的通信会话。

7. 发明申请

WO2004102445A2 METHOD AND SYSTEM FOR SUPPLY CHAIN MANAGEMENT EMPLOYING A VIZUALIZATION INTERFACE 审中-公开
标题翻译：供应链管理方法与系统采用视角界面
公开(公告)号：WO2004102445A2
公开(公告)日：2004-11-25
申请号：PCT/IB2004/002407
申请日：2004-05-14
申请人： PCH INTERNATIONAL LTD. , CASEY, Liam
发明人： CASEY, Liam
IPC分类号： G06F17/60
CPC分类号： G06Q10/08 , G06Q10/0833 , G06Q10/087
摘要： Systems and methods for tracking various goods/services are disclosed. Status information is provided from a plurality of nodes on a supply chain to a database where it is stored in real-time. Suppliers, consumers, and intermediaries can access the information through a display that graphically and intuitively represents each of the plurality of nodes and the status data. By providing an end-to-end view of goods/services, embodiments of the invention allow users to efficiently track and manage various supply, procurement, and business processes.
摘要翻译：公开了跟踪各种商品/服务的系统和方法。从供应链上的多个节点向实时存储的数据库提供状态信息。供应商，消费者和中间人可以通过以图形和直观地表示多个节点中的每个节点和状态数据的显示器来访问信息。通过提供商品/服务的端到端视图，本发明的实施例允许用户有效地跟踪和管理各种供应，采购和业务流程。

8. 发明申请

WO2003005648A2 METROPOLITAN ACCESS VIA TUNNEL TRANSPORTS 审中-公开
标题翻译： METROPOLITAN通过隧道运输
公开(公告)号：WO2003005648A2
公开(公告)日：2003-01-16
申请号：PCT/CA2002/001028
申请日：2002-07-05
申请人： NORTEL NETWORKS LIMITED , CASEY, Liam, L.
发明人： CASEY, Liam, L.
IPC分类号： H04L12/46
CPC分类号： H04L63/0272 , H04L12/2898 , H04L12/4633 , H04L45/50 , H04L63/162 , H04L69/324
摘要： A method is provided of accessing a service network via a Layer 2 transport. The Layer 2 transport includes a customer facing and a core-facing device coupled to the service network. The method includes the steps of providing multi-protocol label switching (MPLS) label switched path between the customer-facing device and the core-facing device and establishing a Layer 2 tunneling protocol (L2TP) tunnel over the label switched path to transport traffic between the entity and the service network. The core-facing device includes module for an L2TP Network Server (LNS) functions that provides label swapping between the L2TP tunnel and an MPLS tunnel to the service network. The customer-facing device includes module for an L2TP Access Concentrator (LAC) function. The MPLS may be carried over an Ethernet network, such that the LAC and LNS are MPLS adjacent routes and use penultimate hop label stack popping to reduce the number of labels in the stack to a single label. The L2TP payload is also Ethernet and Layer 2 VPN services realized by the PE are one of LAN extension, Transparent LAN service, VLAN switched services and like Virtual Private Ethernet services.
摘要翻译：提供了通过第2层传输访问服务网络的方法。第2层传输包括耦合到服务网络的面向客户和面向核心的设备。该方法包括以下步骤：在面向客户的设备和面向核心的设备之间提供多协议标签交换（MPLS）标签交换路径，并在标签交换路径之间建立二层隧道协议（L2TP）隧道，以便在实体和服务网络。核心设备包括用于L2TP网络服务器（LNS）功能的模块，其在L2TP隧道和到服务网络的MPLS隧道之间提供标签交换。面向客户的设备包括用于L2TP访问集中器（LAC）功能的模块。 MPLS可以通过以太网进行传输，使得LAC和LNS是MPLS相邻的路由，并使用倒数第二跳标签栈弹出将堆栈中的标签数量减少到单个标签。 L2TP有效载荷也是以太网，PE实现的二层VPN业务是LAN扩展，透明局域网业务，VLAN交换业务和虚拟专用以太网业务之一。

9. 发明申请

WO2011041895A1 METHOD AND APPARATUS FOR EXCHANGING ROUTING INFORMATION AND ESTABLISHING CONNECTIVITY ACROSS MULTIPLE NETWORK AREAS 审中-公开
标题翻译：交换路由信息的方法和装置，并建立多个网络区域的连通性
公开(公告)号：WO2011041895A1
公开(公告)日：2011-04-14
申请号：PCT/CA2010/001587
申请日：2010-10-06
申请人： NORTEL NETWORKS LIMITED , CASEY, Liam M. , ALLAN, David Ian , BRAGG, Nigel Lawrence , CHIABAUT, Jerome
发明人： CASEY, Liam M. , ALLAN, David Ian , BRAGG, Nigel Lawrence , CHIABAUT, Jerome
IPC分类号： H04L12/56 , H04L12/40 , H04L12/46
CPC分类号： H04L12/462 , H04L12/4641 , H04L45/02 , H04L45/026 , H04L45/04 , H04L45/16 , H04L45/18 , H04L45/66
摘要： A method ensures that multicast packets follow the same loop-free path followed by unicast packets in a packet communication network. The communication network includes at least one first area interconnected through at least one area border node ("ABN") to a second area. Each ABN has a first level port connected to each first area and a second level port connected to the second area. Each multicast packet forwarded includes a header having a root-id identifying a root of a multicast tree. A data packet is received at an ABN. Responsive to receiving a multicast packet at a second level port of an area border node, the root-id of the multicast packet is examined and if the multicast packet is to be forwarded over at least one of the first level ports, a different root-id is substituted into the packet before the packet is forwarded over the first level port.
摘要翻译：一种方法可以确保组播数据包遵循相同的无循环路径，随后是分组通信网络中的单播数据包。通信网络包括通过至少一个区域边界节点（“ABN”）互连到第二区域的至少一个第一区域。每个ABN具有连接到每个第一区域的第一级端口和连接到第二区域的第二级端口。转发的每个组播数据包包括一个具有标识多播树根的根ID的报头。在ABN处接收数据分组。响应于在区域边界节点的第二级端口处接收到组播数据包，检查组播数据包的根ID，如果要通过至少一个第一级端口转发组播数据包，在通过第一级端口转发数据包之前，将id替换为数据包。

10. 发明申请

WO2010069041A1 RESILIENT ATTACHMENT TO PROVIDER LINK STATE BRIDGING (PLSB) NETWORKS 审中-公开
标题翻译：提供链路状态桥梁（PLSB）网络的强制性附件
公开(公告)号：WO2010069041A1
公开(公告)日：2010-06-24
申请号：PCT/CA2009/001674
申请日：2009-11-24
申请人： NORTEL NETWORKS LIMITED , CASEY, Liam , ALLAN, David , BRAGG, Nigel, L. , CHIABAUT, Jerome , ASHWOOD SMITH, Peter
发明人： CASEY, Liam , ALLAN, David , BRAGG, Nigel, L. , CHIABAUT, Jerome , ASHWOOD SMITH, Peter
IPC分类号： H04L12/24 , H04L29/10
CPC分类号： H04L41/0654 , H04L12/66 , H04L45/02 , H04L45/22 , H04L45/245 , H04L45/48 , H04L45/74 , H04L47/41 , H04L2212/00 , Y02D50/30
摘要： A method system for interfacing a client system in a first network domain with a Provider Link State Bridging (PLSB) network domain. At least two Backbone Edge Bridges (BEBs) of the PLSB domain 20 are provided. Each BEB is an end-point of a connection in the first network domain to the client system and an end-point of at least a unicast path defined within the PLSB domain 20. An inter-node trunk is provided in the PLSB domain 20 for interconnecting the at least two BEBs. A phantom node is defined in the PLSB domain 20. The phantom node has a unique address in the PLSB domain 20 and is notionally located on the inter-node trunk one hop from each of the BEBs. Each of the BEBs is configured such that: an ingress packet received from the client system via the connection in the first network domain is forwarded through a path notionally rooted at the phantom node; and an egress subscriber packet destined for the client system is forwarded to the client system through the connection in the first network domain.
摘要翻译：一种用于将第一网络域中的客户端系统与提供商链路状态桥接（PLSB）网络接口的方法系统。提供了PLSB域20的至少两个骨干边缘桥（BEB）。每个BEB是在第一网络域中到客户端系统的连接的端点以及在PLSB域20内定义的至少单播路径的端点。在PLSB域20中提供节点间中继，用于互连所述至少两个BEB。在PLSB域20中定义了虚拟节点。虚拟节点在PLSB域20中具有唯一的地址，并且从每个BEB中概念地位于节点间中继一跳。每个BEB被配置为使得经由第一网络域中的连接从客户端系统接收的入口分组通过一个有意识地根植于虚拟节点的路径转发; 并且去往客户端系统的出口订户分组通过第一网络域中的连接被转发到客户端系统。

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