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公开(公告)号：US07620273B2
公开(公告)日：2009-11-17
申请号：US10073931
申请日：2002-02-14
申请人： Bharat Tarachand Doshi , Stefan Hunsche , Ramesh Nagarajan , Srinivasa Prasanna , Narayan Raman , Meenakshi Sharma
发明人： Bharat Tarachand Doshi , Stefan Hunsche , Ramesh Nagarajan , Srinivasa Prasanna , Narayan Raman , Meenakshi Sharma
CPC分类号： H04Q11/0005 , H04Q2011/0049 , H04Q2011/0079
摘要： A technique for improving optical cross-connections comprises placing a switch in front of a number of processing units. So configured, the units are no longer dedicated to a specific link or signal. When necessary, a unit is connected/disconnected to one or more optical links by the switch to carry out any number of processing functions, such as regeneration, Raman pumping, dispersion equalization/compensation or performance monitoring. Because the units are no longer dedicated to specific links the cost of the cross-connections and the network it is a part of can be reduced.
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公开(公告)号：US07096275B1
公开(公告)日：2006-08-22
申请号：US09588490
申请日：2000-06-06
IPC分类号： G06F13/00
CPC分类号： H04Q11/0478 , H04J2203/0032 , H04J2203/0053 , H04J2203/006 , H04J2203/0098 , H04Q11/0062 , H04Q2011/0081
摘要： Units of traffic are routed between nodes in a network on corresponding sets of trunks, such that the traffic is balanced between disjoint paths. A restoration process for the traffic is implemented using service layer or transport layer switching. In a first embodiment, first and second nodes are connected by first and second sets of trunks, with each of the trunks in a given set of trunks supporting a designated portion of a given one of the units of traffic. The units of traffic are then routed such that a first half of a given one of the units of traffic is routed on a first one of the trunks in a given one of the sets of trunks, and a second half of the given unit is routed on a second one of the trunks in the given set of trunks. In other embodiments, the first and second nodes are connected by first and second sets of trunks so as to form a four-trunk ring, with each of the first and second sets of trunks including a primary trunk and a backup trunk. A given one of the units of traffic is then routed on either an upper or lower portion of the ring. The four trunk ring may be in the form of an IP/optical hybrid ring, in which case the restoration process is implemented using service layer switching, or a SONET/optical ring, in which case the restoration process is implemented using transport layer switching.
摘要翻译： 流量单位在相应组的中继线上的网络中的节点之间路由，使得流量在不相交路径之间平衡。 使用业务层或传输层交换实现业务的恢复过程。 在第一实施例中，第一和第二节点通过第一组和第二组中继线连接，其中一组中继线中的每个中继线支持给定的一个业务单元的指定部分。 然后，路由单元被路由使得给定的一个业务单元的前半部分在路由组中的给定组中的第一个中继路由，给定单元的后半部分被路由 在给定的一组树干中的第二个树干中。 在其他实施例中，第一和第二节点通过第一和第二组中继线连接，以便形成四中继环，其中第一和第二组干线包括主干线和备用干线。 然后，给定的一个交通单元在环的上部或下部路由。 四个中继环可以是IP /光混合环的形式，在这种情况下，使用业务层交换或SONET /光环实现恢复过程，在这种情况下，使用传输层交换来实现恢复过程。
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3.发明授权Address option for use in an internet protocol-based multimedia mobile network 有权地址选项用于基于互联网协议的多媒体移动网络公开(公告)号：US06765896B1
公开(公告)日：2004-07-20
申请号：US09480763
申请日：2000-01-10
IPC分类号： H04Q724
摘要： In an IP addressing aspect of the invention, a method for use in facilitating transfer of packets in an Internet Protocol (IP) based communications system, wherein the communications system includes a plurality of network nodes and a plurality of mobile user stations, comprises the steps of: (i) inserting an address option field in a packet header of a packet to be transferred in the communications system, the address option field including supplemental address related data for facilitating transfer of packets in the communications system; and processing the packet within at least one of a network node and a mobile user station in the communications system in accordance with the supplemental address related data in the address option field of the packet header. The address option field may comprise an address type field, an address length field and an address data field. Various address related data may be included in the address data field to facilitate transfer of packets in an IP-based communications system.
摘要翻译： 在本发明的IP寻址方面，一种用于促进基于因特网协议（IP）的通信系统中的分组传输的方法，其中所述通信系统包括多个网络节点和多个移动用户站，包括步骤 （i）在通信系统中要传送的分组的分组报头中插入地址选项字段，地址选项字段包括用于促进通信系统中的分组传送的补充地址相关数据; 以及根据分组报头的地址选项字段中的补充地址相关数据来处理通信系统中的网络节点和移动用户站中的至少一个中的分组。 地址选项字段可以包括地址类型字段，地址长度字段和地址数据字段。 各种地址相关数据可以包括在地址数据字段中以便于在基于IP的通信系统中传送分组。
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4.发明授权Application-level switching server for internet protocol (IP) based networks 有权基于互联网协议（IP）的网络的应用层交换服务器公开(公告)号：US06704311B1
公开(公告)日：2004-03-09
申请号：US09344781
申请日：1999-06-25
IPC分类号： H04L1256
CPC分类号： H04L65/4084 , H04L12/6418 , H04L29/06027 , H04L65/608 , H04L67/00 , H04L69/16 , H04L69/329
摘要： An Internet Protocol (IP)-based network incorporates an application level switching server and a number of packet endpoints. A packet endpoint multiplexes application sessions destined for different packet endpoints into one multiplexed session that is terminated with the application level switching server. The latter extracts each application session (or packets associated therewith) and repackages, or switches, them into other multiplexed sessions such that at least two switched packets are transmitted to different packet endpoints. The multiplexed sessions utilize either RTP/UDP/IP or UDP/IP encapsulation.
摘要翻译： 基于互联网协议（IP）的网络集成了应用级交换服务器和多个分组端点。 分组端点将发往不同分组端点的应用会话复用到由应用级交换服务器终止的一个多路复用会话中。 后者提取每个应用程序会话（或与之相关的数据包）和重新包装，或者将它们切换到其他复用的会话中，使得至少两个交换分组被发送到不同的分组端点。 复用的会话使用RTP / UDP / IP或UDP / IP封装。
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5.发明授权Addressing techniques for use in an internet protocol-based multimedia mobile network 有权用于基于互联网协议的多媒体移动网络中的寻址技术公开(公告)号：US06690659B1
公开(公告)日：2004-02-10
申请号：US09480025
申请日：2000-01-10
IPC分类号： H04Q700
摘要： In an IP addressing aspect of the invention, a method for use in an Internet Protocol (IP) based communications system, comprises the steps of: (i) assigning a temporary location IP address (e.g., LIPA) to a mobile user station in the communications system, the address being a combination of an identifier of the mobile user station (e.g., MID) and an identifier of a network node in the communications system with which the mobile user station is currently associated (e.g., RID); and transferring packets to and from the mobile user station in accordance with the temporary location IP address. The method may further comprise the step of changing the temporary location IP address assigned to the mobile user station when the station becomes associated with another network node of the communications system, the changed address being a combination of the identifier of the mobile user station and an identifier of the new network node. The method may further comprise the step of assigning a location IP address to a network node in the communications system, the address being a combination of an identifier of the network node and a common identifier of mobile user stations in the communications system.
摘要翻译： 在本发明的IP寻址方面，一种在基于因特网协议（IP）的通信系统中使用的方法包括以下步骤：（i）将临时位置IP地址（例如，LIPA）分配给移动用户站 通信系统，该地址是移动用户站（例如，MID）的标识符与移动用户站当前关联的通信系统中的网络节点的标识符（例如，RID）的组合; 并且根据临时位置IP地址将数据包传送到移动用户站和从移动用户站传送分组。 该方法还可以包括当站与通信系统的另一个网络节点相关联时，改变分配给移动用户站的临时位置IP地址的步骤，改变的地址是移动用户站的标识符和 新网络节点的标识符。 该方法还可以包括将通信系统中的网络节点分配位置IP地址的步骤，该地址是通信系统中网络节点的标识符和移动用户站的公共标识符的组合。
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公开(公告)号：US6130875A
公开(公告)日：2000-10-10
申请号：US959800
申请日：1997-10-29
CPC分类号： H04J14/0227 , H04J14/0241 , H04L41/0659 , H04L45/02 , H04L45/22 , H04L45/28 , H04L45/302 , H04L45/42 , H04L45/44 , H04L45/62 , H04Q11/0062 , H04J14/0278 , H04J14/0284 , H04L41/12 , H04Q2011/0073 , H04Q2011/0081 , H04Q2011/0086
摘要： Precomputation techniques for determining primary and/or restoration paths in an optical or electrical network. A hybrid centralized/distributed approach is provided in which certain information used in distributed precomputation is downloaded from a central controller of the network. The downloaded information is used as an input to a distributed precomputation algorithm implemented by the network nodes in order to provide improved performance. The central controller makes use of its knowledge of global network topology in computing the information to be downloaded to the nodes. The downloaded information generally represents network information which changes with less frequency than other network information processed by the nodes as part of the distributed precomputation algorithm. The information downloaded from the central controller may include, for example, network connectivity information, capacities for at least a subset of the links in the network, a subset of all possible routes between a source node and a destination node in the network arranged in an appropriate initial search order, a link contention index for each of the links in the network, and indices assigned to one or more of the nodes and links of the network, wherein the indices are used to determine an order of processing operations involving the one or more nodes and links of the network.
摘要翻译： 用于确定光或电网络中的主路径和/或恢复路径的预计算技术。 提供了一种混合集中/分布式方法，其中从分布式预计算中使用的某些信息从网络的中央控制器下载。 下载的信息被用作由网络节点实现的分布式预计算算法的输入，以提供改进的性能。 中央控制器利用其全球网络拓扑知识计算要下载到节点的信息。 所下载的信息通常表示作为分布式预计算算法的一部分而以节点处理的其他网络信息的频率更少的网络信息。 从中央控制器下载的信息可以包括例如网络连通性信息，网络中链路的至少一个子集的容量，网络中的源节点和目的地节点之间的所有可能路由的子集， 适当的初始搜索顺序，网络中每个链路的链路争用索引以及分配给网络中的一个或多个节点和链路的索引，其中，索引用于确定涉及该一个或多个网络的处理操作的顺序 更多的网络节点和链接。
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公开(公告)号：US07502361B2
公开(公告)日：2009-03-10
申请号：US10345034
申请日：2003-01-15
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。
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公开(公告)号：US6160804A
公开(公告)日：2000-12-12
申请号：US191134
申请日：1998-11-13
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。
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公开(公告)号：US5936967A
公开(公告)日：1999-08-10
申请号：US757208
申请日：1996-11-27
申请人： John H. Baldwin , Behram Homi Bharucha , Bharat Tarachand Doshi , Subrahmanyam Dravida , Sanjiv Nanda
发明人： John H. Baldwin , Behram Homi Bharucha , Bharat Tarachand Doshi , Subrahmanyam Dravida , Sanjiv Nanda
CPC分类号： H04Q11/0478 , H04L2012/5607 , H04L2012/5652 , H04L2012/5672
摘要： A method and apparatus for transmitting and/or receiving variable-length packets (e.g., CDMA packets, CDPD packets) that are associated with different channels and which are multiplexed via a single virtual circuit (e.g., an ATM virtual circuit).
摘要翻译： 用于发送和/或接收与不同信道相关联并且经由单个虚拟电路（例如，ATM虚拟电路）复用的可变长度分组（例如，CDMA分组，CDPD分组）的方法和装置。
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公开(公告)号：US5729536A
公开(公告)日：1998-03-17
申请号：US630147
申请日：1996-04-10
申请人： Bharat Tarachand Doshi , Subrahmanyam Dravida , Richard Paul Ejzak , Sanjiv Nanda , Anil Sawkar , Philip Andrew Treventi
发明人： Bharat Tarachand Doshi , Subrahmanyam Dravida , Richard Paul Ejzak , Sanjiv Nanda , Anil Sawkar , Philip Andrew Treventi
CPC分类号： H04W88/181 , H04L49/255 , H04L49/3081 , H04Q11/0478 , H04L2012/5607 , H04L2012/5619 , H04L2012/5639
摘要： Four stages of digital cellular architecture are presented which reuse much of the existing voice infrastructure while allowing graceful introduction of data and integrated voice/data services over industry standard, low cost platforms. First, a separate ATM-based infrastructure is introduced that supports data services. A new data call control is introduced on industry standard hardware platforms using object oriented and modular programming. Second, ATM is introduced at radio ports and call control functions are migrated to the new ATM-based call control platforms. Third, vocoders are introduced at the DCS. Fourth, the cellular functions of the legacy cellular switch are phased out and replaced by the ATM-based target architecture.
摘要翻译： 提出了四个阶段的数字蜂窝架构，其重用了大量现有的语音基础设施，同时允许在行业标准，低成本平台上优雅地引入数据和集成语音/数据服务。 首先，引入了支持数据服务的单独的基于ATM的基础设施。 在面向对象和模块化编程的行业标准硬件平台上引入了新的数据呼叫控制。 第二，在无线端口引入ATM，呼叫控制功能迁移到新的基于ATM的呼叫控制平台。 第三，在DCS中引入声码器。 第四，传统蜂窝交换机的蜂窝功能被淘汰，并被基于ATM的目标架构所取代。
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