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1. 发明授权

US07522632B2 Multiple-protocol home location register and method of use 有权
公开(公告)号：US07522632B2
公开(公告)日：2009-04-21
申请号：US09813016
申请日：2001-03-19
申请人： Thomas F. La Porta , Kazutaka Murakami , Krishan Kumar Sabnani , Robert Shaw Sellinger
发明人： Thomas F. La Porta , Kazutaka Murakami , Krishan Kumar Sabnani , Robert Shaw Sellinger
IPC分类号： H04L12/64
CPC分类号： H04W8/04 , H04W92/02
摘要： A multiple-protocol home location register (MP HLR) comprises a processor, that generates network messages according to two or more network protocols and processes network requests and other messages to obtain information requested by two or more networks that support the two or more network protocols. One embodiment of the MP HLR (101) utilizes protocol gateways (211) that interpret network requests and generate, utilizing a common control procedures for multiple network protocols, queries to a database that provides a common source of data for supported networks. Another embodiment of an MP HLR (101) utilizes a mediation device (405) that generates and/or translates network messages according to multiple different network protocols and utilizes multiple HLRs (401, 403) or home agents, each supporting a different network protocol.

2. 发明授权

US5953331A Wireless packet system for efficient wide area bandwidth utilization 失效
标题翻译：无线分组系统，用于有效的广域带宽利用率
公开(公告)号：US5953331A
公开(公告)日：1999-09-14
申请号：US925876
申请日：1997-09-09
申请人： Thomas Duncan , Richard Dennis Gitlin , Thomas F. La Porta , Kazutaka Murakami , Krishan Kumar Sabnani , Anil S. Sawkar , David E. Smith
发明人： Thomas Duncan , Richard Dennis Gitlin , Thomas F. La Porta , Kazutaka Murakami , Krishan Kumar Sabnani , Anil S. Sawkar , David E. Smith
IPC分类号： H04M3/00 , H04B7/26 , H04L12/66 , H04Q3/00 , H04W88/18 , H04L12/20
CPC分类号： H04W88/181
摘要： A telecommunications system is arranged to efficiently route digital information from a mobile network to a Public Switched Telephone Network (PSTN) and vice versa by interposing a packet network between the mobile network and PSTN so that digital information originating from the wireless network at a first data rate may be forwarded over the packet network at that rate and then sent over a direct connection from the packet network to the PSTN at a second data rate expected by the PSTN. In this way the conversion of the digital information from the first to the second data rate is performed only when needed, i.e., at the ATM switch connected to the PSTN.
摘要翻译：电信系统被布置为通过在移动网络和PSTN之间插入分组网络来有效地将数字信息从移动网络路由到公共交换电话网（PSTN），反之亦然，使得以第一数据来自无线网络的数字信息速率可以以该速率通过分组网络转发，然后以由PSTN预期的第二数据速率通过直接连接从分组网络发送到PSTN。以这种方式，数字信息从第一数据速率到第二数据速率的转换仅在需要时进行，即在连接到PSTN的ATM交换机上进行。

3. 发明授权

US06654359B1 Wireless access to packet-based networks 失效
标题翻译：无线接入基于分组的网络
公开(公告)号：US06654359B1
公开(公告)日：2003-11-25
申请号：US09210072
申请日：1998-12-11
申请人： Thomas F. La Porta , Kazutaka Murakami , Ramachandran Ramjee , Sandra R. Thuel , Kannan Varadhan
发明人： Thomas F. La Porta , Kazutaka Murakami , Ramachandran Ramjee , Sandra R. Thuel , Kannan Varadhan
IPC分类号： H04J1228
CPC分类号： H04L61/2015 , H04L29/12216 , H04L29/12301 , H04L29/12311 , H04L29/12801 , H04L61/2076 , H04L61/2084 , H04L61/6004 , H04W40/248 , H04W40/28 , H04W40/36 , H04W80/04 , H04W88/005
摘要： Domains are defined to incorporate a subnet including a plurality of base stations and routers. Base stations are used by mobile devices to attach to the wired portion of a packet-based network, such as the Internet, and exchange packets thereover with a correspondent node. Local mobility between domain base stations is provided by including and updating routing table entries at domain routers and base stations for forwarding packets having a mobile device's address as a destination address to the mobile device. Packets are delivered to the mobile device regardless of the domain base station to which the mobile device is attached. When a mobile device is attached to a base station included within a foreign domain, a care-of address is assigned, and packets are tunneled for delivery of packets to the mobile device. Only one care-of address is required per mobile device per foreign domain. Routing table entries used for packet delivery are updated on a purely local subnet basis within domains, whether home domain or foreign domain, making handoffs between base stations substantially transparent to the home agent and the correspondent node.
摘要翻译：域被定义为并入包括多个基站和路由器的子网。移动设备使用基站来附加到诸如因特网的基于分组的网络的有线部分，并且与对应节点交换分组。通过在域路由器和基站处包括和更新路由表条目来提供域基站之间的本地移动，用于将具有移动设备地址的分组转发到移动设备。无论移动设备连接到的域基站如何，都将数据包传送到移动设备。当移动设备附接到包含在外部域中的基站时，分配转交地址，并且分组被隧道传送到移动设备的分组。每个移动设备每个外国域只需要一个转交地址。用于分组传递的路由表条目在域内纯属于本地子网进行更新，无论是归属域还是外部域，使基站之间的切换对归属代理和通信节点基本上是透明的。

4. 发明授权

US07239618B1 Single phase local mobility scheme for wireless access to packet-based networks 失效
标题翻译：用于无线接入基于分组的网络的单相本地移动性方案
公开(公告)号：US07239618B1
公开(公告)日：2007-07-03
申请号：US09210213
申请日：1998-12-11
申请人： Thomas F. La Porta , Kazutaka Murakami , Ramachandran Ramjee , Sandra R. Thuel , Kannan Varadhan
发明人： Thomas F. La Porta , Kazutaka Murakami , Ramachandran Ramjee , Sandra R. Thuel , Kannan Varadhan
IPC分类号： H04Q7/00
CPC分类号： H04L61/2015 , H04L29/06 , H04L29/12018 , H04L29/12216 , H04L29/12301 , H04L29/12311 , H04L29/12801 , H04L61/10 , H04L61/2076 , H04L61/2084 , H04L61/6004 , H04W8/087 , H04W36/04 , H04W80/04
摘要： Local mobility within a subnet is supported by classifying wireless base stations, and the routers used to forward packets to those base stations, within defined domains. Domains are defined to incorporate a subnet having a plurality of base stations. Base stations are used by mobile devices to attach to the wired portion of a packet-based network, such as the Internet, and exchange packets thereover with a correspondent node. Packets sent from the correspondent node to the mobile device have a packet destination address corresponding to the mobile device. The mobile device retains this address for the duration of time it is powered up and attached to the Internet via any base station within a given domain. Host-based routing is utilized to update routing table entries corresponding to the mobile device at routers incorporated within a single domain. The routing table entries are established and updated via path setup schemes to convey packets destined for the mobile device along the proper established path through the domain routers and base stations, regardless of the domain base station through which the mobile device is attached. Path setup schemes utilize power up, refresh, and handoff path setup messages to maintain the proper relationship between router interfaces and packet addresses for routing table entries.
摘要翻译：通过对无线基站进行分类来支持子网内的本地移动性，并且用于将数据包转发到定义域内的那些基站的路由器。域定义为包含具有多个基站的子网。移动设备使用基站来附加到诸如因特网的基于分组的网络的有线部分，并且与对应节点交换分组。从通信节点发送到移动设备的分组具有对应于移动设备的分组目的地地址。移动设备在其被加电并且经由给定域内的任何基站连接到因特网的时间内保留该地址。基于主机的路由用于在单个域内的路由器上更新与移动设备相对应的路由表条目。通过路径设置方案建立和更新路由表条目，以便通过域路由器和基站传送去往移动设备的分组沿着适当的建立路径，而不管移动设备通过哪个域基站。路径设置方案利用上电，刷新和切换路径建立消息来维护路由器接口和路由表条目的包地址之间的适当关系。

5. 发明授权

US06298039B1 High availability distributed call processing method and apparatus 失效
标题翻译：高可用性分布式呼叫处理方法和装置
公开(公告)号：US06298039B1
公开(公告)日：2001-10-02
申请号：US09017105
申请日：1998-01-31
申请人： Richard Wayne Buskens , Thomas F. La Porta , Yow-Jian Lin , Kazutaka Murakami , Ramachandran Ramjee
发明人： Richard Wayne Buskens , Thomas F. La Porta , Yow-Jian Lin , Kazutaka Murakami , Ramachandran Ramjee
IPC分类号： H04L1250
CPC分类号： H04Q3/0037 , G06F11/1482 , G06F11/2097 , H04L69/40
摘要： A method of delivering highly-reliable, fault-tolerant communications services in a telecommunications network of distributed call processing systems. The method advantageously identifies a set of objects within the telecommunications network requiring checkpointing; checkpoints the objects; and subsequently restores the checkpointed objects in the event of a failure. Various aspects of the method are disclosed, including restoration strategies.
摘要翻译：在分布式呼叫处理系统的电信网络中提供高度可靠的容错通信服务的方法。该方法有利地识别需要检查点的电信网络内的一组对象; 检查对象; 并在随后的故障情况下恢复检查点对象。公开了该方法的各个方面，包括恢复策略。

6. 发明授权

US06763007B1 Two phase local mobility scheme for wireless access to packet based networks 有权
标题翻译：用于无线接入基于分组的网络的两相本地移动性方案
公开(公告)号：US06763007B1
公开(公告)日：2004-07-13
申请号：US09209705
申请日：1998-12-11
申请人： Thomas F. La Porta , Kazutaka Murakami , Ramachandran Ramjee , Sandra R. Thuel , Kannan Varadhan
发明人： Thomas F. La Porta , Kazutaka Murakami , Ramachandran Ramjee , Sandra R. Thuel , Kannan Varadhan
IPC分类号： H04Q700
CPC分类号： H04W8/082 , H04L45/02 , H04W8/087 , H04W80/04
摘要： Local mobility within a subnet is supported by classifying wireless base stations, and the routers used to forward packets to those base stations, within defined domains. Domains are defined to incorporate a subnet having a plurality of base stations. Base stations are used by mobile devices to attach to the wired portion of a packet-based network, such as the Internet, and exchange packets thereover with a correspondent node. Packets sent from the correspondent node to the mobile device have a packet destination address corresponding to the mobile device. The mobile device retains this address for the duration of time it is powered up and attached to the Internet via any base station within a given domain. Host-based routing is utilized to update routing table entries corresponding to the mobile device at routers incorporated within a single domain. The routing table entries are established and updated via path setup schemes to convey packets destined for the mobile device along the proper established path through the domain routers and base stations, regardless of the domain base station through which the mobile device is attached. Path setup schemes utilize power up, refresh, and handoff path setup messages to maintain the proper relationship between router interfaces and packet addresses for routing table entries.
摘要翻译：通过对无线基站进行分类来支持子网内的本地移动性，并且用于将数据包转发到定义域内的那些基站的路由器。域定义为包含具有多个基站的子网。移动设备使用基站来附加到诸如因特网的基于分组的网络的有线部分，并且与对应节点交换分组。从通信节点发送到移动设备的分组具有对应于移动设备的分组目的地地址。移动设备在其被加电并且经由给定域内的任何基站连接到因特网的时间内保留该地址。基于主机的路由用于在单个域内的路由器上更新与移动设备相对应的路由表条目。通过路径设置方案建立和更新路由表条目，以便通过域路由器和基站传送去往移动设备的分组沿着适当的建立路径，而不管移动设备通过哪个域基站。路径设置方案利用上电，刷新和切换路径建立消息来维护路由器接口和路由表条目的包地址之间的适当关系。

7. 发明授权

US06192250B1 Cluster mobile switching center 失效
标题翻译：集群移动交换中心
公开(公告)号：US06192250B1
公开(公告)日：2001-02-20
申请号：US09145094
申请日：1998-09-01
申请人： Richard Wayne Buskens , Michael P. Deitz , Thomas F. La Porta , Yow-Jian Lin , Kazutaka Murakami , Ramachandran Ramjee
发明人： Richard Wayne Buskens , Michael P. Deitz , Thomas F. La Porta , Yow-Jian Lin , Kazutaka Murakami , Ramachandran Ramjee
IPC分类号： H04M100
CPC分类号： H04W88/16 , H04W92/14
摘要： A “cluster mobile switching center” (cMSC) is arranged to perform the switching and control functions of a conventional mobile switching center (MSC), including, if desired, the additional functions of a conventional visitor location register (VLR). The cMSC is implemented on distributed processors using modular software. Advantageously, a specific instance of middleware, known as Common Object Request Broker Architecture (CORBA), is used as the communications middleware. Functionally, the cMSC is arranged to have two classes of servers: (1) Interworking managers (IMs) that act as gateways and provide interfaces to external network elements, and (2) core servers that perform call processing (registration, location updates, incoming and outgoing call processing) functions and communicate with each other using CORBA. IMs terminate standard protocols with the external elements and use CORBA to communicate with the core servers. Software objects are defined to perform specific tasks, manage particular resources, and interact to provide end-to-end services.
摘要翻译： “集群移动交换中心”（cMSC）被配置为执行常规移动交换中心（MSC）的切换和控制功能，如果需要，包括常规访问者位置寄存器（VLR）的附加功能。 cMSC使用模块化软件在分布式处理器上实现。有利地，被称为通用对象请求代理体系结构（CORBA）的中间件的特定实例被用作通信中间件。在功能上，cMSC被设置为具有两类服务器：（1）作为网关的互通管理器（IM）并且向外部网元提供接口，以及（2）执行呼叫处理的核心服务器（注册，位置更新，传入和呼出处理）功能并使用CORBA相互通信。 IMs使用外部元素终止标准协议，并使用CORBA与核心服务器进行通信。软件对象被定义为执行特定任务，管理特定资源并进行交互以提供端到端服务。

8. 发明授权

US07558254B2 Method and apparatus for call routing via gateway brokering 有权
标题翻译：通过网关代理进行呼叫路由的方法和装置
公开(公告)号：US07558254B2
公开(公告)日：2009-07-07
申请号：US10915217
申请日：2004-08-10
申请人： Oliver Haase , Kazutaka Murakami
发明人： Oliver Haase , Kazutaka Murakami
IPC分类号： H04L12/66
CPC分类号： H04M7/128 , H04L29/06027 , H04L29/1216 , H04L61/157 , H04L65/1006 , H04L65/103 , H04L65/104 , H04M7/1285 , Y10S379/90
摘要： Method and apparatus for routing telephone calls across different types of networks includes means for and steps of determining a destination IP address of a new call according to initial conditions established in a first network, determining a destination gateway (gateway brokering) based on the destination IP address, the initial conditions and a gateway selection policy, providing routing information of the destination gateway to the first network and completing the new call set up via messages received from the gateway brokering step. The initial conditions in the first network are established by determining if a callee is part of an IP network or part of a CS network and converting the callee phone number to an SIP URL if the callee is part of the IP network. Such determination is made by recognizing a prefix identifying an IP destination in the callee phone number.
摘要翻译：用于在不同类型网络上路由电话呼叫的方法和装置包括根据在第一网络中建立的初始条件来确定新呼叫的目的地IP地址的步骤，基于目的地IP确定目的地网关（网关代理）地址，初始条件和网关选择策略，提供目的地网关到第一网络的路由信息，并通过从网关代理步骤接收到的消息完成新的呼叫建立。第一网络中的初始条件是通过确定被叫方是IP网络还是CS网络的一部分，并且如果被叫方是IP网络的一部分，则将被叫电话号码转换为SIP URL来确定。通过识别在被叫方电话号码中识别IP目的地的前缀来进行这种确定。

9. 发明授权

US08509221B2 Apparatus and method for enabling optimized gateway selection for inter-working between circuit-switched and internet telephony 有权
公开(公告)号：US08509221B2
公开(公告)日：2013-08-13
申请号：US12638113
申请日：2009-12-15
申请人： Parag M. Doshi , Oliver Haase , Jonathan Michael Lennox , Kazutaka Murakami , Ming Xiong
发明人： Parag M. Doshi , Oliver Haase , Jonathan Michael Lennox , Kazutaka Murakami , Ming Xiong
IPC分类号： H04L12/66
CPC分类号： H04L65/1043 , H04L12/66 , H04L29/06027 , H04L29/12094 , H04L29/12188 , H04L61/106 , H04L61/1529 , H04L61/1588 , H04M7/1285 , H04M2207/18 , H04W76/10 , H04W88/16
摘要： An optimized gateway selection process of the present invention is based on a universal mobility manager (UMM), a component for inter-technology location management. The UMM is capable of holding location information for diverse cellular networks, as well as for Internet telephony systems. For cellular networks, UMM acts as a traditional HLR; for an Internet telephony network, it acts as the entities that are responsible for user/terminal registration (registrar in SIP, gatekeeper in H.323) and address resolution (proxy server in SIP, gatekeeper in H.323). An optimal gateway selection is possible based on location related information provided by the UMM which had not previously been available. Utilizing the newly available information enables a gateway to be selected which may, for example, enable the circuit switched portion of a call to now be minimized.

10. 发明授权

US07756122B2 Methods and devices for providing seamless global roaming using an all-IP network 有权
标题翻译：使用全IP网络提供无缝全球漫游的方法和设备
公开(公告)号：US07756122B2
公开(公告)日：2010-07-13
申请号：US10435016
申请日：2003-05-12
申请人： Triantafyllos Alexiou , Parag M. Doshi , Oliver Haase , Ramana Isukapalli , Jonathan M. Lennox , Kazutaka Murakami
发明人： Triantafyllos Alexiou , Parag M. Doshi , Oliver Haase , Ramana Isukapalli , Jonathan M. Lennox , Kazutaka Murakami
IPC分类号： H04L12/66
CPC分类号： H04L67/306 , H04L65/1016 , H04W8/06 , H04W80/10
摘要： A Global Roaming Application Server is adapted to act as an intermediary between all Internet Protocol (IP)-based network(s) and non-IP-based network(s), such as a circuit-switched landline network, an ANSI-41 network, wireless LAN network, a Global System for Mobile Communications network or Universal Mobile Telecommunications System network. In a first or forward direction, the Application Server enables a user in a non-IP network to be located in accordance with user profiles at the request of another user who has chosen to send a message via an all-IP based network. After the user in the non-IP network is so located, the Application Server enables a signaling link to be created between the two users. The Application Server may also be used to enable a signaling link when a message is sent in a second, or reverse direction.
摘要翻译：全球漫游应用服务器适于充当所有基于互联网协议（IP）的网络和非基于IP的网络之间的中介，例如电路交换陆线网络，ANSI-41网络，无线LAN网络，全球移动通信系统网络或通用移动电信系统网络。在第一或向前的方向上，应用服务器使得非IP网络中的用户可以根据另一用户的请求根据用户简档来定位，该用户已经选择通过基于全IP的网络发送消息。在非IP网络中的用户如此定位之后，应用服务器使得能够在两个用户之间创建信令链路。当消息以第二方向或相反方向发送时，应用服务器还可用于启用信令链路。

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