利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

67 条记录 (耗时 0.039 秒)

    Network architecture for intelligent network elements
    3.
    发明申请
    Network architecture for intelligent network elements 有权
    智能网元的网络架构

    公开(公告)号：US20080209494A1

    公开(公告)日：2008-08-28

    申请号：US11894711

    申请日：2007-08-20

    申请人： Subrahmanyam Dravida ,  Dey V. Gupta ,  Frederick Peralta ,  Kiran M. Rege ,  Manas Tandon

    发明人： Subrahmanyam Dravida ,  Dey V. Gupta ,  Frederick Peralta ,  Kiran M. Rege ,  Manas Tandon

    IPC分类号： H04N7/173

    CPC分类号： H04L61/2015 ,  H04L12/2801 ,  H04L12/2856 ,  H04L12/2859 ,  H04L12/2861 ,  H04L12/4641 ,  H04L12/4645 ,  H04L29/12216 ,  H04L41/0806 ,  H04L41/0886 ,  H04L41/12 ,  H04L41/5003 ,  H04L47/10 ,  H04L47/20 ,  H04L47/2416 ,  H04L47/2425 ,  H04L47/2433 ,  H04L47/2441 ,  H04L47/2491 ,  H04L47/32 ,  H04L2012/5605 ,  H04L2012/5606 ,  H04L2012/561 ,  H04L2012/5651 ,  H04L2012/5679 ,  H04N7/10 ,  H04N7/17309 ,  H04Q3/0045

    摘要： Hybrid fiber/coax networks employ the existing cable plant used for cable TV and transmit data signals in a frequency bandwidth above that which is used for cable TV. As this cable plant was deployed in a tree and branch topology, data transmissions may be susceptible to noise, variable transmission loss and frequency dispersion, particularly in the upstream direction. Further, due to the tree and branch topology, homes at the far end of the network experience much greater loss than do the homes that are near to the headend/ONU. The present system, which uses point-to-point data links between intelligent network elements located in the feeder/distribution network to provide reliable, secure, bi-directional broadband access. Digital signals are terminated at the intelligent network elements, switched and regenerated for transmission across additional upstream or downstream data links as needed to connect a home to a headend or router. The intelligent network elements can be co-located with or replace the standard network elements to take advantage of existing network configurations. The standard network elements can be selectively replaced by the intelligent network elements in an incremental approach. A tree-and-branch network architecture is therefore established in which each intelligent network element is assigned a routing ID employed in the point-to-point transmissions while leaving legacy analog signals unimpeded. In this manner, the data links are made over relatively short runs of coax cable, which can provide greater bandwidth than the typical end-to-end feeder/distribution connection between a home and the headend or optical network unit.

    摘要翻译： 混合光纤/同轴电缆网络采用用于有线电视的现有电缆设备，并以高于用于有线电视的频率带宽传输数据信号。 由于该电缆厂部署在树型和分支拓扑结构中，数据传输可能会受到噪声，可变传输损耗和频率分散的影响，特别是在上行方向。 此外，由于树和分支拓扑，网络远端的家庭比靠近头端/ ONU的家庭遭受更大的损失。 该系统使用位于馈线/分配网络中的智能网络元件之间的点对点数据链路来提供可靠，安全的双向宽带接入。 数字信号在智能网络元件处被终止，被切换和再生以用于在将家庭连接到头端或路由器所需的附加上游或下游数据链路上传输。 智能网络元件可以与标准网络元件共同定位或替换，以利用现有的网络配置。 标准网元可以以增量方式由智能网元选择性地替代。 因此，建立了一种树分支网络架构，其中每个智能网络元件被分配在点对点传输中采用的路由ID，同时保持传统模拟信号不受阻碍。 以这种方式，数据链路通过相对较短的同轴电缆运行进行，这可以提供比归属和前端或光网络单元之间的典型端到端馈线/分配连接更大的带宽。

    Subnetwork layer for a multimedia mobile network
    6.
    发明授权
    Subnetwork layer for a multimedia mobile network 有权
    多媒体移动网络的子网层

    公开(公告)号：US07502361B2

    公开(公告)日：2009-03-10

    申请号：US10345034

    申请日：2003-01-15

    申请人： Walid Ahmed ,  Bharat Tarachand Doshi ,  Subrahmanyam Dravida ,  Hong Jiang ,  Kiran M. Rege

    发明人： Walid Ahmed ,  Bharat Tarachand Doshi ,  Subrahmanyam Dravida ,  Hong Jiang ,  Kiran M. Rege

    IPC分类号： H04J3/24

    CPC分类号： H04L29/12311 ,  H04L1/1664 ,  H04L1/1812 ,  H04L61/2084 ,  H04L67/322 ,  H04L69/324 ,  H04L69/325 ,  H04L69/329 ,  H04L69/40 ,  H04W74/00 ,  H04W80/00

    摘要： A new protocol layer is provided as part of a protocol stack associated with a packet-based multiaccess mobile communications system. The protocol layer is preferably located above a medium access control (MAC) protocol layer and a physical protocol layer of the system and below a transport/network protocol layer. Such a subnetwork protocol layer provides, inter alia, the communications system with various mobility management functions, for example, tracking mobile user stations throughout the system, mobile station access to the system, and connection/call continuity within the system. The subnetwork protocol layer of the invention also performs packet routing functions associated with the system. Routing can be accomplished in many ways, for example, via source routing, connectionless routing, or tunneling. Further, the new protocol layer of the invention is preferably located above a data link layer with respect to the protocol stack associated with communications between network nodes.

    摘要翻译： 作为与基于分组的多访问移动通信系统相关联的协议栈的一部分提供了新的协议层。 协议层优选地位于媒体访问控制（MAC）协议层和系统的物理协议层之上，并位于传输/网络协议层之下。 这样的子网协议层尤其提供具有各种移动性管理功能的通信系统，例如，跟踪整个系统中的移动用户站，移动台对系统的访问以及系统内的连接/呼叫连续性。 本发明的子网协议层还执行与系统相关联的分组路由功能。 可以通过许多方式实现路由，例如，通过源路由，无连接路由或隧道。 此外，本发明的新协议层优选地相对于与网络节点之间的通信相关联的协议栈位于数据链路层之上。

    Mobility management for a multimedia mobile network
    7.
    发明授权
    Mobility management for a multimedia mobile network 有权
    多媒体移动网络的移动管理

    公开(公告)号：US6160804A

    公开(公告)日：2000-12-12

    申请号：US191134

    申请日：1998-11-13

    申请人： Walid Ahmed ,  Bharat Tarachand Doshi ,  Subrahmanyam Dravida ,  Hong Jiang ,  Kiran M. Rege

    发明人： Walid Ahmed ,  Bharat Tarachand Doshi ,  Subrahmanyam Dravida ,  Hong Jiang ,  Kiran M. Rege

    IPC分类号： H04L12/56 ,  H04L29/06 ,  H04L29/12 ,  H04J3/24 ,  H04L12/28

    CPC分类号： H04W8/082 ,  H04L29/12009 ,  H04L29/12047 ,  H04L29/12801 ,  H04L61/15 ,  H04L61/6004 ,  H04L69/16 ,  H04L69/161 ,  H04L69/164 ,  H04W80/04

    摘要： Various methodologies and related apparatus associated with mobility management issues within a packet-based multiaccess mobile communications system, which includes a plurality of mobile user stations and a plurality of network nodes, are provided. Location management techniques include tracking and/or locating mobile stations within the system. The invention makes use of home and visiting location registers in which information such as mobile station addresses and/or host names associated with mobile stations are stored. Mobile access methodologies include a complete mobile access method and a direct mobile access method. The former allows a mobile station to preferably include a unique address in the packets being transmitted, while the latter allows the station to merely use the host name of the destination station. The invention also includes various in-call mobility management techniques, including handoffs, which make use of the concept of an anchor.

    摘要翻译： 提供了包括多个移动用户站和多个网络节点的基于分组的多接入移动通信系统内与移动性管理问题相关联的各种方法和相关设备。 位置管理技术包括跟踪和/或定位系统内的移动台。 本发明利用存储与移动台相关联的诸如移动站地址和/或主机名称的信息的归属和访问位置寄存器。 移动接入方法包括完整的移动接入方法和直接移动接入方法。 前者允许移动台优选地在正被发送的分组中包括唯一的地址，而后者允许站仅使用目的站的主机名。 本发明还包括使用锚的概念的各种呼叫移动性管理技术，包括切换。

    Addressing scheme for a multimedia mobile network
    8.
    发明授权
    Addressing scheme for a multimedia mobile network 有权
    多媒体移动网络的寻址方案

    公开(公告)号：US06947398B1

    公开(公告)日：2005-09-20

    申请号：US09191132

    申请日：1998-11-13

    申请人： Walid Ahmed ,  Bharat Tarachand Doshi ,  Subrahmanyam Dravida ,  Hong Jiang ,  Kiran M. Rege

    发明人： Walid Ahmed ,  Bharat Tarachand Doshi ,  Subrahmanyam Dravida ,  Hong Jiang ,  Kiran M. Rege

    IPC分类号： H04W8/04 ,  H04W8/26 ,  H04W80/04 ,  H04Q7/00

    CPC分类号： H04W8/04 ,  H04W8/26 ,  H04W80/04

    摘要： An addressing scheme for a packet-based multiaccess mobile communications system, which includes a plurality of mobile user stations and a plurality of network nodes, is provided. In such addressing scheme, each mobile station is assigned an address which is a combination (preferably, a concatenation) of a unique identifier of a network node with which the mobile station is currently associated and an identifier of the mobile station. The network node identifiers may be uniquely assigned by a network administrator, while the identifiers of the mobile stations may, for example, be set to a universal MAC address assigned to the station. The address may also include a port identifier which indicates the particular application flow associated with the accompanying packets. Similarly, each network node is assigned an address which is a combination (preferably, a concatenation) of its network node identifier and, preferably, an interface identifier. The address may also include a port identifier.

    摘要翻译： 提供了一种用于基于分组的多接入移动通信系统的寻址方案，其包括多个移动用户站和多个网络节点。 在这种寻址方案中，每个移动台被分配地址，该地址是移动台当前与之相关联的网络节点的唯一标识符和移动站的标识符的组合（优选地，级联）。 网络节点标识符可以由网络管理员唯一地分配，而移动站的标识符可以例如被设置为分配给站的通用MAC地址。 地址还可以包括指示与伴随的分组相关联的特定应用流的端口标识符。 类似地，为每个网络节点分配一个地址，该地址是其网络节点标识符的组合（优选地，连接），并且优选地，接口标识符。 地址还可以包括端口标识符。

    Mobility management for a multimedia mobile network
    9.
    发明授权
    Mobility management for a multimedia mobile network 有权
    多媒体移动网络的移动管理

    公开(公告)号：US06747961B1

    公开(公告)日：2004-06-08

    申请号：US09547262

    申请日：2000-04-11

    申请人： Walid Ahmed ,  Bharat Tarachand Doshi ,  Subrahmanyam Dravida ,  Hong Jiang ,  Kiran M. Rege

    发明人： Walid Ahmed ,  Bharat Tarachand Doshi ,  Subrahmanyam Dravida ,  Hong Jiang ,  Kiran M. Rege

    IPC分类号： H04Q700

    CPC分类号： H04W8/082 ,  H04L29/12009 ,  H04L29/12047 ,  H04L29/12801 ,  H04L61/15 ,  H04L61/6004 ,  H04L69/16 ,  H04L69/161 ,  H04L69/164 ,  H04W80/04

    摘要： Various methodologies and related apparatus associated with mobility management issues within a packet-based multiaccess mobile communications system, which includes a plurality of mobile user stations and a plurality of network nodes, are provided. Location management techniques include tracking and/or locating mobile stations within the system. The invention makes use of home and visiting location registers in which information such as mobile station addresses and/or host names associated with mobile stations are stored. Mobile access methodologies include a complete mobile access method and a direct mobile access method. The former allows a mobile station to preferably include a unique address in the packets being transmitted, while the latter allows the station to merely use the host name of the destination station. The invention also includes various in-call mobility management techniques, including handoffs, which make use of the concept of an anchor.

    摘要翻译： 提供了包括多个移动用户站和多个网络节点的基于分组的多接入移动通信系统内与移动性管理问题相关联的各种方法和相关设备。 位置管理技术包括跟踪和/或定位系统内的移动台。 本发明利用存储与移动台相关联的诸如移动站地址和/或主机名称的信息的归属和访问位置寄存器。 移动接入方法包括完整的移动接入方法和直接移动接入方法。 前者允许移动台优选地在正被发送的分组中包括唯一的地址，而后者允许站仅使用目的站的主机名。 本发明还包括使用锚的概念的各种呼叫移动性管理技术，包括切换。

    Mobility management for a multimedia mobile network
    10.
    发明授权
    Mobility management for a multimedia mobile network 有权
    多媒体移动网络的移动管理

    公开(公告)号：US06256300B1

    公开(公告)日：2001-07-03

    申请号：US09547263

    申请日：2000-04-11

    申请人： Walid Ahmed ,  Bharat Tarachand Doshi ,  Subrahmanyam Dravida ,  Hong Jiang ,  Kiran M. Rege

    发明人： Walid Ahmed ,  Bharat Tarachand Doshi ,  Subrahmanyam Dravida ,  Hong Jiang ,  Kiran M. Rege

    IPC分类号： H04Q700

    CPC分类号： H04W8/082 ,  H04L29/12009 ,  H04L29/12047 ,  H04L29/12801 ,  H04L61/15 ,  H04L61/6004 ,  H04L69/16 ,  H04L69/161 ,  H04L69/164 ,  H04W80/04

    摘要： Various methodologies and related apparatus associated with mobility management issues within a packet-based multiaccess mobile communications system, which includes a plurality of mobile user stations and a plurality of network nodes, are provided. Location management techniques include tracking and/or locating mobile stations within the system. The invention makes use of home and visiting location registers in which information such as mobile station addresses and/or host names associated with mobile stations are stored. Mobile access methodologies include a complete mobile access method and a direct mobile access method. The former allows a mobile station to preferably include a unique address in the packets being transmitted, while the latter allows the station to merely use the host name of the destination station. The invention also includes various in-call mobility management techniques, including handoffs, which make use of the concept of an anchor.

    摘要翻译： 提供了包括多个移动用户站和多个网络节点的基于分组的多接入移动通信系统内与移动性管理问题相关联的各种方法和相关设备。 位置管理技术包括跟踪和/或定位系统内的移动台。 本发明利用存储与移动台相关联的诸如移动站地址和/或主机名称的信息的归属和访问位置寄存器。 移动接入方法包括完整的移动接入方法和直接移动接入方法。 前者允许移动台优选地在正被发送的分组中包括唯一的地址，而后者允许站仅使用目的站的主机名。 本发明还包括使用锚的概念的各种呼叫移动性管理技术，包括切换。