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    Methods and apparatus for improving resiliency of communication networks
    1.
    发明授权
    Methods and apparatus for improving resiliency of communication networks 有权
    提高通信网络弹性的方法和装置

    公开(公告)号：US08036104B2

    公开(公告)日：2011-10-11

    申请号：US10619384

    申请日：2003-07-14

    申请人： M. Scott Corson ,  Samir Kapoor ,  Rajiv Laroia ,  Vincent Park ,  Arthur Stephens

    发明人： M. Scott Corson ,  Samir Kapoor ,  Rajiv Laroia ,  Vincent Park ,  Arthur Stephens

    IPC分类号： G01R31/08

    CPC分类号： G06F11/0709 ,  G06F11/079 ,  H04L41/0213 ,  H04L41/0663 ,  H04L41/5012

    摘要： Techniques for supporting fault tolerance in communications systems are described. Fault notification messages are communicated which may be affected by a detected/reported service disruption. End nodes receiving a fault notification message determine if the message indicates a disruption in a node that is critical to the end node receiving the message. If the indicated disruption is in a critical node, the end node takes action to ameliorate the effect of the reported condition. Fault notification messages indicating disruptions in nodes which are not critical to the end node receiving the fault notification message may be ignored once it is determined that the indicated disruption is in a node which is not critical to the end node receiving the message. The invention described herein minimizes service disruption following fault, failure or outage of critical network nodes, improving overall system robustness and resiliency.

    摘要翻译： 描述了用于支持通信系统中的容错的技术。 故障通知消息被传送，可能受到检测到/报告的服务中断的影响。 接收故障通知消息的端节点确定消息是否指示对于接收消息的终端节点至关重要的节点的中断。 如果指示的中断处于关键节点，则结束节点采取行动来改善报告条件的影响。 一旦确定所指示的中断在对接收消息的最终节点不重要的节点中，则指示对接收到故障通知消息的终端节点不重要的节点中的中断的故障通知消息可以被忽略。 本文描述的发明最大限度地减少关键网络节点的故障，故障或中断之后的服务中断，提高整体系统的鲁棒性和弹性。

    Methods and Apparatus For Uplink Macro-Diversity in Packet-Switched Cellular Networks
    2.
    发明申请
    Methods and Apparatus For Uplink Macro-Diversity in Packet-Switched Cellular Networks 有权
    分组交换蜂窝网络上行宏分集的方法与装置

    公开(公告)号：US20110228690A1

    公开(公告)日：2011-09-22

    申请号：US13118052

    申请日：2011-05-27

    申请人： M. Scott Corson ,  Samir Kapoor ,  Rajiv Laroia ,  Vincent Park

    发明人： M. Scott Corson ,  Samir Kapoor ,  Rajiv Laroia ,  Vincent Park

    IPC分类号： H04W24/00

    CPC分类号： H04W28/06 ,  H04W24/00 ,  H04W36/18 ,  H04W40/02 ,  H04W84/12

    摘要： A method and apparatus for providing uplink macro-diversity in packet-switched networks that allows packets and/or portions of packets, e.g., frames, to be selectively sent from an end node, e.g., wireless communication device or mobile terminal, over a set of multiple communication connections, e.g., physical-layer or link-layer connections, to one or more access nodes, e.g., base stations. Uplink macro-diversity is achieved in part through intelligent selective forwarding over multiple communication connections, where the forwarding decision is controlled by the end node based on a variety of factors, e.g., physical-layer channel conditions and/or higher layer policy. The forwarding decision is executed on a rapid timescale, e.g., on a per packet basis, to adapt to the dynamically varying conditions of the set of communication connections.

    摘要翻译： 一种用于在分组交换网络中提供上行链路宏分集的方法和装置，其允许分组和/或分组（例如，帧）的一部分从终端节点（例如，无线通信设备或移动终端）经由一组 多个通信连接（例如，物理层或链路层连接）连接到一个或多个接入节点，例如基站。 上行链路宏分集部分地通过多个通信连接上的智能选择转发实现，其中转发决策由终端节点基于诸如物理层信道条件和/或更高层策略的各种因素来控制。 转发决定以快速时间尺度（例如，基于每个分组）执行，以适应通信连接集合的动态变化条件。

    METHODS AND APPARATUS FOR DOWNLINK MACRO-DIVERSITY IN CELLULAR NETWORKS
    3.
    发明申请
    METHODS AND APPARATUS FOR DOWNLINK MACRO-DIVERSITY IN CELLULAR NETWORKS 有权
    细胞网络下行宏观分析的方法与装置

    公开(公告)号：US20100027476A1

    公开(公告)日：2010-02-04

    申请号：US12578247

    申请日：2009-10-13

    申请人： M. Scott Corson ,  Samir Kapoor ,  Rajiv Laroia ,  Vincent Park

    发明人： M. Scott Corson ,  Samir Kapoor ,  Rajiv Laroia ,  Vincent Park

    IPC分类号： H04W4/00

    CPC分类号： H04W36/18 ,  H04W24/00 ,  H04W40/02 ,  H04W84/12

    摘要： The invention described herein enables a form of downlink macro-diversity in packet-switched cellular networks. It allows packets to be selectively delivered from a network/internetwork to an end node, e.g., a wireless communication device or terminal, over a set of available link-layer connections to/from the end node, through one or more access nodes, e.g., base stations. Downlink macro-diversity is particularly important when the link-layer connections between the end node and the corresponding access node, e.g., the access links, are subject to independent or partially correlated time variations in signal strength and interference. In accordance with the invention, the end node dynamically selects the downlink to be used out of a set of available access links on a per packet basis subject to prevailing channel conditions, availability of air-link resources and other constraints. The invention improves the robustness and efficiency of communication, overall utilization of air-link resources, and quality of service experienced by the end node.

    摘要翻译： 本文描述的本发明使得能够在分组交换蜂窝网络中形成下行链路宏分集。 它允许分组通过一个或多个接入节点，例如通过一组到终端节点的可用链路层连接的集合，例如，无线通信设备或终端，选择性地从网络/互联网络传送到终端节点，例如 ，基站。 当终端节点和对应的接入节点（例如接入链路）之间的链路层连接受信号强度和干扰的独立或部分相关的时间变化时，下行链路宏分集尤其重要。 根据本发明，终端节点根据主要信道条件，空中链路资源的可用性和其他约束，以每个分组的形式动态地选择要从一组可用接入链路中使用的下行链路。 本发明提高了通信的鲁棒性和效率，空中链路资源的整体利用以及终端节点所经历的业务质量。

    Methods and apparatus for downlink macro-diversity in cellular networks
    4.
    发明授权
    Methods and apparatus for downlink macro-diversity in cellular networks 有权
    蜂窝网络中下行链路宏分集的方法和装置

    公开(公告)号：US07623477B2

    公开(公告)日：2009-11-24

    申请号：US10702000

    申请日：2003-11-05

    申请人： M. Scott Corson ,  Samir Kapoor ,  Rajiv Laroia ,  Vincent Park

    发明人： M. Scott Corson ,  Samir Kapoor ,  Rajiv Laroia ,  Vincent Park

    IPC分类号： H04J1/16 ,  H04L12/56

    CPC分类号： H04W36/18 ,  H04W24/00 ,  H04W40/02 ,  H04W84/12

    摘要： The invention described herein enables a form of downlink macro-diversity in packet-switched cellular networks. It allows packets to be selectively delivered from a network/internetwork to an end node, e.g., a wireless communication device or terminal, over a set of available link-layer connections to/from the end node, through one or more access nodes, e.g., base stations. Downlink macro-diversity is particularly important when the link-layer connections between the end node and the corresponding access node, e.g., the access links, are subject to independent or partially correlated time variations in signal strength and interference. In accordance with the invention, the end node dynamically selects the downlink to be used out of a set of available access links on a per packet basis subject to prevailing channel conditions, availability of air-link resources and other constraints. The invention improves the robustness and efficiency of communication, overall utilization of air-link resources, and quality of service experienced by the end node.

    摘要翻译： 本文描述的本发明使得能够在分组交换蜂窝网络中形成下行链路宏分集。 它允许分组通过一个或多个接入节点，例如通过一组到终端节点的可用链路层连接的集合，例如，无线通信设备或终端，选择性地从网络/互联网络传送到终端节点，例如 ，基站。 当终端节点和对应的接入节点（例如接入链路）之间的链路层连接受信号强度和干扰的独立或部分相关的时间变化时，下行链路宏分集尤其重要。 根据本发明，终端节点根据主要信道条件，空中链路资源的可用性和其他约束，以每个分组的形式动态地选择要从一组可用接入链路中使用的下行链路。 本发明提高了通信的鲁棒性和效率，空中链路资源的整体利用以及终端节点所经历的业务质量。

    Security methods for use in a wireless communications system
    7.
    发明授权
    Security methods for use in a wireless communications system 失效
    用于无线通信系统的安全方法

    公开(公告)号：US07729686B2

    公开(公告)日：2010-06-01

    申请号：US11471062

    申请日：2006-06-19

    申请人： M. Scott Corson ,  Rajiv Laroia ,  Vincent Park ,  Sathyadev Venkata Uppala ,  Michaela Vanderveen

    发明人： M. Scott Corson ,  Rajiv Laroia ,  Vincent Park ,  Sathyadev Venkata Uppala ,  Michaela Vanderveen

    IPC分类号： H04M1/66 ,  H04M1/68 ,  H04M3/16

    CPC分类号： H04L9/3236 ,  H04L63/0807 ,  H04L63/12 ,  H04L2209/80 ,  H04W12/02 ,  H04W12/06 ,  H04W12/10 ,  H04W12/12 ,  H04W88/08

    摘要： Signal, e.g., message, security techniques are described for wireless systems. A first signal is received by an access node via a wireless link. The signal includes a first authenticator that was generated by the transmitting device, e.g., wireless terminal. The access node determines from an attribute of the signal at least some information known to both the access node and transmitting device but which was not transmitted as part of the message content. The determined information was used by the wireless terminal in generating the first authenticator. The access node sends at least a portion of the first signal including the first authenticator and the determined information to another entity. The entity compares the first authenticator to a second authenticator it generates from the determined information and a secure key which it shares with the transmitting device to determine if the first and second authenticators match.

    摘要翻译： 为无线系统描述信号，例如消息，安全技术。 接入节点经由无线链路接收第一信号。 信号包括由发送设备例如无线终端产生的第一认证器。 接入节点根据信号的属性确定接入节点和发送设备都已知的至少一些信息，但是未作为消息内容的一部分发送。 确定的信息被无线终端用于生成第一认证器。 接入节点将包括第一认证器的第一信号的至少一部分和确定的信息发送到另一个实体。 实体将第一鉴别器与其确定的信息产生的第二认证器和与发送设备共享的安全密钥进行比较，以确定第一和第二认证符是否匹配。

    Methods and apparatus for updating mobile node location information
    8.
    发明授权
    Methods and apparatus for updating mobile node location information 失效
    更新移动节点位置信息的方法和装置

    公开(公告)号：US07392056B2

    公开(公告)日：2008-06-24

    申请号：US11327791

    申请日：2006-01-06

    申请人： M. Scott Corson ,  Rajiv Laroia ,  Vincent Park ,  Sathyadev Venkata Uppala ,  Michaela Vanderveen

    发明人： M. Scott Corson ,  Rajiv Laroia ,  Vincent Park ,  Sathyadev Venkata Uppala ,  Michaela Vanderveen

    IPC分类号： H04Q7/20

    CPC分类号： H04W68/00 ,  H04L63/126 ,  H04W12/10 ,  H04W12/12 ,  H04W28/24 ,  H04W60/00 ,  H04W72/04

    摘要： Location update techniques are described. A dormant mobile node updates its location information by sending a first message over a wireless link to an access node. The access node generates a second update message in response to the first message. The second message includes a mobile node identifier and, in some embodiments is directed to the mobile node. The second message is received by a tracking agent, which updates location information corresponding to the mobile node. In the case where second message is an IP message and is routed to the mobile node using Mobile IP, a Mobile IP home agent routes the second message to the mobile node's last point of network attachment where the tracking agent is located and intercepts the message. The tracking agent may send a response message to the access node sending the second message.

    摘要翻译： 描述位置更新技术。 休眠移动节点通过无线链路向接入节点发送第一消息来更新其位置信息。 接入节点响应于第一消息生成第二更新消息。 第二消息包括移动节点标识符，并且在一些实施例中指向移动节点。 第二消息由跟踪代理接收，跟踪代理更新对应于移动节点的位置信息。 在第二消息是IP消息并且使用移动IP路由到移动节点的情况下，移动IP归属代理将第二消息路由到移动节点的最后一个网络附着点，跟踪代理所在的位置并拦截该消息。 跟踪代理可以向发送第二消息的接入节点发送响应消息。

    Security methods for use in a wireless communications system
    9.
    发明授权
    Security methods for use in a wireless communications system 失效
    用于无线通信系统的安全方法

    公开(公告)号：US07069000B1

    公开(公告)日：2006-06-27

    申请号：US10640960

    申请日：2003-08-13

    申请人： M. Scott Corson ,  Rajiv Laroia ,  Vincent Park ,  Sathyadev Venkata Uppala ,  Michaela Vanderveen

    发明人： M. Scott Corson ,  Rajiv Laroia ,  Vincent Park ,  Sathyadev Venkata Uppala ,  Michaela Vanderveen

    IPC分类号： H04M1/66

    CPC分类号： H04L63/08 ,  H04L63/12 ,  H04L63/1408 ,  H04W12/06 ,  H04W12/10 ,  H04W12/12

    摘要： Signal, e.g., message, security techniques are described for wireless systems. A first signal is received by an access node via a wireless link. The signal includes a first authenticator that was generated by the transmitting device, e.g., wireless terminal. The access node determines from an attribute of the signal at least some information known to both the access node and transmitting device but which was not transmitted as part of the message content. The determined information was used by the wireless terminal in generating the first authenticator. The access node sends at least a portion of the first signal including the first authenticator and the determined information to another entity. The entity compares the first authenticator to a second authenticator it generates from the determined information and a secure key which it shares with the transmitting device to determine if the first and second authenticators match.

    摘要翻译： 为无线系统描述信号，例如消息，安全技术。 接入节点经由无线链路接收第一信号。 信号包括由发送设备例如无线终端产生的第一认证器。 接入节点根据信号的属性确定接入节点和发送设备都已知的至少一些信息，但是未作为消息内容的一部分发送。 确定的信息被无线终端用于生成第一认证器。 接入节点将包括第一认证器的第一信号的至少一部分和确定的信息发送到另一个实体。 实体将第一鉴别器与其确定的信息产生的第二认证器和与发送设备共享的安全密钥进行比较，以确定第一和第二认证符是否匹配。