公开(公告)号：US06961774B1

公开(公告)日：2005-11-01

申请号：US09922086

申请日：2001-08-02

申请人： Michael L. Shannon ,  Manjari Asawa ,  Roy E. Hanzel

发明人： Michael L. Shannon ,  Manjari Asawa ,  Roy E. Hanzel

IPC分类号： G06F15/16 ,  H04L12/56 ,  H04W36/02 ,  H04W36/14 ,  H04W80/00 ,  H04W88/16 ,  H04W92/02

CPC分类号： H04W36/0066 ,  H04W36/02 ,  H04W80/00 ,  H04W88/16 ,  H04W92/02

摘要： A system for performing a hand-off between two IP core networks in the wireless domain includes a source mobility control function (MCF) within a source IP core network that is coupled to a source access network providing service to a mobile unit. The source MCF is coupled to a source bearer path gateway (BPGW) within the source IP core network. The source BPGW communicates bearer traffic associated with the mobile unit between the source access network and a public switched telephone network (PSTN) gateway within the source IP core network. The PSTN gateway communicates the bearer traffic between the source BPGW and a PSTN coupled to the source IP core network. The source MCF is functionally separate from a call agent (CA) within the source IP core network. The CA is also coupled to the source BPGW. The CA sets up a first segment of a bearer path for the bearer traffic between the source BPGW and the PSTN gateway, and the source MCF sets up a second segment of the bearer path for the bearer traffic between the source access network and the source BPGW. A hand-off occurs between the source IP core network and the target IP core network in the wireless domain when the source MCF takes down the second segment and sets up third and fourth segments of the bearer path for the bearer traffic in response to the mobile unit entering a service area of a target access network coupled to a target IP core network. The third segment is between the source BPGW and a target BPGW within the target IP core network that communicates the bearer traffic between the target access network and the source BPGW, and the fourth bearer segment is between the target access network and the target BPGW.

摘要翻译： 用于在无线域中的两个IP核网络之间执行切换的系统包括源IP核心网内的源移动性控制功能（MCF），其耦合到向移动单元提供服务的源接入网络。 源MCF耦合到源IP核心网内的源承载路径网关（BPGW）。 源BPGW在源IP核心网络内的源接入网络和公共交换电话网（PSTN）网关之间传送与移动单元相关联的承载业务。 PSTN网关在源BPGW和耦合到源IP核心网的PSTN之间传送承载业务。 源MCF与源IP核心网内的呼叫代理（CA）功能分离。 CA也耦合到源BPGW。 CA为源BPGW和PSTN网关之间的承载业务建立承载路径的第一段，源MCF为源接入网与源BPGW之间的承载业务建立承载路径的第二段 。 当源MCF取消第二段并且响应于移动台为承载业务设置承载路径的第三和第四段时，在无线域中的源IP核心网和目标IP核心网之间发生越区切换 单元进入耦合到目标IP核心网络的目标接入网络的服务区域。 第三段在目标IP核心网内的源BPGW和目标BPGW之间，传送目标接入网与源BPGW之间的承载业务，第四承载段在目标接入网与目标BPGW之间。

公开(公告)号：US6108800A

公开(公告)日：2000-08-22

申请号：US21190

申请日：1998-02-10

申请人： Manjari Asawa

发明人： Manjari Asawa

IPC分类号： G06F11/34 ,  G06F11/00

CPC分类号： G06F11/3409

摘要： A method and apparatus for analyzing the performance of an information system which provides useful assessments of performance that apply to an aggregate of user nodes in the information system. The method and apparatus may be embodied in a performance analyzer which bases an assessment of the performance of the information system on a set of measurements of a performance parameter for each of the user nodes. The measurements in raw form apply to individual ones of the user nodes. The performance analyzer determines a set of filtered measurements by removing at least one type of variability in the measurements. The performance analyzer then determines a representative performance indication in response to the filtered measurements such that the representative performance indication applies to an aggregate of the user nodes. Information system operators are provided with indications of confidence in the applicability of filtered measurements to the aggregate of user nodes and are provided with alarms that are weighted by the indications of confidence.

摘要翻译： 一种用于分析信息系统的性能的方法和装置，其提供适用于信息系统中的用户节点的聚合的性能的有用评估。 该方法和装置可以体现在性能分析器中，该性能分析器基于对每个用户节点的性能参数的一组测量结果，对信息系统的性能进行评估。 原始形式的测量结果适用于用户节点中的单个节点。 性能分析器通过消除测量中的至少一种类型的变异性来确定一组滤波测量。 性能分析器然后响应于经滤波的测量确定代表性性能指示，使得代表性能指示适用于用户节点的聚合。 向信息系统运营商提供了对过滤测量对用户节点聚合的适用性的置信度的指示，并提供了由置信度加权的报警。

公开(公告)号：US5913041A

公开(公告)日：1999-06-15

申请号：US762355

申请日：1996-12-09

申请人： Srinivas Ramanathan ,  Tai Jin ,  Manjari Asawa

发明人： Srinivas Ramanathan ,  Tai Jin ,  Manjari Asawa

IPC分类号： H04L12/26 ,  H04L29/06 ,  H04L29/08 ,  G06F13/00

CPC分类号： H04L43/00 ,  H04L12/2602 ,  H04L29/06 ,  H04L63/0245 ,  H04L43/0829 ,  H04L43/0864 ,  H04L43/0888 ,  H04L43/106 ,  H04L43/16 ,  H04L67/00 ,  H04L69/329

摘要： A method and system of monitoring throughput of a data access system includes logging each transfer of data from a content server to a remote site, with each log entry including information indicative of transfer size, date, times, source and destination. The method includes accessing the log information in a passive and non-intrusive manner to evaluate the performance of transfers to a selected subset of the remote sites. In another embodiment, the performance evaluation is implemented for system resource allocation planning. In the preferred embodiment, the data access system is a broadband data system and the content servers utilize Internet applications. Also in the preferred embodiment, the data throughput is measured by the transfer rate of useful data, rather than all data including retransmissions.

摘要翻译： 监视数据访问系统的吞吐量的方法和系统包括记录从内容服务器到远程站点的数据的每次传送，每个日志条目包括指示传送大小，日期，时间，源和目的地的信息。 该方法包括以被动和非侵入的方式访问日志信息，以评估到远程站点的选定子集的传输性能。 在另一个实施例中，对系统资源分配规划进行性能评估。 在优选实施例中，数据访问系统是宽带数据系统，内容服务器利用因特网应用。 同样在优选实施例中，数据吞吐量通过有用数据的传输速率来测量，而不是包括重传的所有数据。