公开(公告)号：US20040008643A1

公开(公告)日：2004-01-15

申请号：US10194329

申请日：2002-07-12

Applicant: Nortel Networks Limited

Inventor： Parthasarathy Guturu ,  Abdennaceaur Lachtar

IPC: H04Q007/00

CPC classification number: H04W36/12

Abstract: This invention presents an efficient and efficacious method for an equitable distribution of wireless traffic across the 800 and 1900 MHz bands. Even though traffic distribution across bands is desirable, there is a risk of call failure because of location of the mobile in the vicinity of a BTS group with low capacity in the other band. The method proposed here tells how decisions to migrate calls across bands can be made robust against call failures without imposing unreasonable constraints that make such decisions sparing. It presents: (i) a simple and effective quality measure for carrier-to-carrier comparison; (ii) convergence criteria flagging the convergence of the best carrier determination process for each BTS site using the afore mentioned quality measure; (iii) an effective procedure for their implementation; (iv) a decision procedure for selection of the band and carrier for call setup based on the best carriers of individual sites within the possible reach of the mobile in the two bands; and (v) an overall method that makes use of these components. It also presents method of extending this invention to next generation wireless systems that possibly operate in more than two frequency bands.

Abstract translation: 本发明提出了一种用于在800和1900MHz频带上公平分配无线业务的有效和有效的方法。 即使在频段上的业务分布是可取的，由于移动站在另一频带中具有低容量的BTS组附近，存在呼叫失败的风险。 这里提出的方法说明如何使呼叫跨越频段迁移的决策能够对呼叫失败产生强大的影响，而不会施加不合理的约束，从而使得这种决策得到保护。 它提出：（i）载波与载波比较的简单有效的质量测量; （ii）使用上述质量测量标记每个BTS站点的最佳载波确定过程的收敛的收敛标准; （iii）有效的执行程序; （iv）基于在两个频带内移动台可能达到的各个站点的最佳载波，选择用于呼叫建立的频带和载波的决策程序; 和（v）利用这些组件的整体方法。 它还提出了将本发明扩展到可能在两个以上频带中操作的下一代无线系统的方法。

公开(公告)号：US20030170027A1

公开(公告)日：2003-09-11

申请号：US10323685

申请日：2002-12-20

Applicant: Nortel Networks Limited

Inventor： David Milton ,  Tomas Valis ,  Gino Totti ,  Kexing Liu ,  Michel Pigeon

IPC: H04J014/02

CPC classification number: H04J14/0291 ,  H04J14/0206 ,  H04J14/0209 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0226 ,  H04J14/0227 ,  H04J14/0241 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/028 ,  H04J14/0282 ,  H04J14/0283 ,  H04J14/0284 ,  H04J14/0289 ,  H04J14/0298 ,  H04Q11/0062

Abstract: A communications network has a plurality of nodes interconnected by an optical transmission medium. The transmission medium is capable of a carrying a plurality of wavelengths organized into bands. A filter at each node for drops a band associated therewith and passively forwards other bands through the transmission medium. A device is provided at each node for adding a band to the transmission medium. Communication can be established directly between a pair of nodes in the network sharing a common band without the active intervention of any intervening node. This allows the network to be protocol independent. Also, the low losses incurred by the passive filters permit relatively long path lengths without optical amplification.

公开(公告)号：US20030169729A1

公开(公告)日：2003-09-11

申请号：US10326324

申请日：2002-12-20

Applicant: Nortel Networks Limited

Inventor： Marvin Bienn ,  Jayshree A. Bharatia ,  Amy Pendleton

IPC: H04L012/66

CPC classification number: H04L12/66 ,  H04L12/4633 ,  H04L29/06 ,  H04L69/08

Abstract: A telecommunications system having a first PS network, second PS network and a third circuit-switched core network includes a system for terminating a legacy domain circuit-switched communication upon receipt of a trigger signal requesting termination of communication. The system includes first and second functional entities in each network. The first and second functional entities of the first network can communicate signals over an interface using a PS protocol. The first and second functional entities of the second network include can communicate signals over an interface using a PS protocol. The first functional entity of the first network can communicate packet data to and from the first functional entity of the second network. The second functional entity of the first network communicates a PS protocol signal to the second entity of the second network, which then communicates a circuit-switched protocol signal to and from the third circuit-switched protocol core network to terminate the circuit-switched communication.

Abstract translation: 具有第一PS网络，第二PS网络和第三电路交换核心网络的电信系统包括用于在接收到请求终止通信的触发信号时终止传统域电路交换通信的系统。 该系统包括每个网络中的第一和第二功能实体。 第一网络的第一和第二功能实体可以通过使用PS协议的接口来传送信号。 第二网络的第一和第二功能实体可以通过使用PS协议的接口来传送信号。 第一网络的第一功能实体可以向第二网络的第一功能实体传送分组数据和从第二网络的第一功能实体传送分组数据。 第一网络的第二功能实体将PS协议信号传送到第二网络的第二实体，该第二实体然后将电路交换协议信号传送到第三电路交换协议核心网络并从第三电路交换协议核心网络传送，以终止电路交换通信。

公开(公告)号：US20030161303A1

公开(公告)日：2003-08-28

申请号：US10079559

申请日：2002-02-22

Applicant: Nortel Networks Limited

Inventor： Hamid R. Mehrvar ,  Roland A. Smith ,  Xiaoming Fan ,  Mark Wight

IPC: H04L012/50

CPC classification number: H04L49/30 ,  H04L47/24 ,  H04L47/2433 ,  H04L47/2441 ,  H04L47/50 ,  H04L49/1515 ,  H04L49/153 ,  H04L49/20 ,  H04L49/25 ,  H04L49/3081 ,  H04L2012/5651

Abstract: A method and system for conveying an arbitrary mixture of high and low latency traffic streams across a common switch fabric implements a multi-dimensional traffic classification scheme, in which multiple orthogonal traffic classification methods are successively implemented for each traffic stream traversing the system. At least two diverse paths are mapped through the switch fabric, each path being optimized to satisfy respective different latency requirements. A latency classifier is adapted to route each traffic stream to a selected path optimized to satisfy latency requirements most closely matching a respective latency requirement of the traffic stream. A prioritization classifier independently prioritizes traffic streams in each path. A fairness classifier at an egress of each path can be used to enforce fairness between responsive and non-responsive traffic streams in each path. This arrangement enables traffic streams having similar latency requirements to traverse the system through a path optimized for those latency requirements.

Abstract translation: 用于传送跨越公共交换机结构的高延迟和低等待时间业务流的任意混合的方法和系统实现多维业务分类方案，其中对于遍历系统的每个业务流连续地实现多个正交业务分类方法。 通过交换结构映射至少两个不同的路径，每个路径被优化以满足各自的不同等待时间要求。 延迟分类器适于将每个业务流路由到经过优化的所选路径，以满足与业务流的相应等待时间要求最接近的等待时间要求。 优先级分类器在每个路径中独立地对流量进行优先级排序。 每个路径的出口处的公平分类器可以用于在每个路径中的响应和非响应业务流之间实施公平性。 这种布置使得具有相似等待时间要求的业务流可以通过针对那些等待时间要求而优化的路径来遍历系统。

公开(公告)号：US20030152324A1

公开(公告)日：2003-08-14

申请号：US10073101

申请日：2002-02-12

Applicant: NORTEL NETWORKS LIMITED

Inventor： Ian B. Betty ,  Maxime Poirier

IPC: G02B006/26 ,  G02B006/12

CPC classification number: G02B6/14 ,  G02B6/12004 ,  G02B6/2813 ,  G02B2006/1215

Abstract: Through the introduction of an imaging multimode interference device in an integrated optical circuit, such performance degradations as lateral waveguide field oscillations and backreflections may be suppressed. The suppression of lateral waveguide field oscillations (that may occur due to misaligned optical coupling), in particular, can significantly reduce variations in the power splitting ratio of an optical power splitting structure, such as those employed by a Mach-Zehnder modulator.

Abstract translation: 通过在集成光电路中引入成像多模干扰装置，可以抑制诸如横向波导场振荡和反向反射的性能劣化。 特别是抑制横向波导场振荡（可能由于不对准的光耦合而发生）可以显着地减少诸如由马赫 - 曾德尔调制器采用的光功率分离结构的功率分配比的变化。

公开(公告)号：US20030135468A1

公开(公告)日：2003-07-17

申请号：US10178131

申请日：2002-06-24

Applicant: NORTEL NETWORKS LIMITED

Inventor： Abdulkadev Barbir ,  Nalin Mistry ,  Wayne Ding ,  Reinaldo Penno

IPC: G06F017/60

CPC classification number: H04L63/0272 ,  G06Q20/382

Abstract: An overlay network includes a virtual content server for representing a content provider in a virtual content network and at least a client having a membership in the virtual content network and a content path between the virtual content server and the client. Each node in the content path is also a member of the virtual content network and each link between nodes is provided by a tunnel to ensure trust and integrity at the content level.

公开(公告)号：US20030112819A1

公开(公告)日：2003-06-19

申请号：US10020805

申请日：2001-12-18

Applicant: NORTEL NETWORKS LIMITED

Inventor： Sheldon J. Kofoed ,  Devon S. Lynch ,  Ingrid J. Zorgdrager

IPC: H04J003/16

CPC classification number: H04J3/1611 ,  H04J3/12 ,  H04J2203/0066 ,  H04J2203/0067 ,  H04L69/22 ,  H04L69/32

Abstract: A communications interface on a data path between a plurality of data channels and a single communications port on a processor. The communications interface controls data as it passes on a receive path from the plurality of data channels to the single communications port and on a transmit path from the single communications port to the plurality of data channels and is adapted to use a memory to buffer the data when necessary. The communications interface (i) adds a channel identifier, which identifies to which data channel the data relates, to the data on the receive path so that the processor will be able to determine to which data channel the data relates and (ii) removes a channel identifier from the data on the transmit path so that the data will leave the communications interface in the same format in which it was received.

Abstract translation: 在多个数据信道与处理器上的单个通信端口之间的数据路径上的通信接口。 通信接口控制数据，因为它在从多个数据信道到单个通信端口的接收路径和从单个通信端口到多个数据信道的发送路径上传递数据，并且适于使用存储器来缓冲数据 必要时。 通信接口（i）将识别数据所关联的数据信道的信道标识符添加到接收路径上的数据，使得处理器将能够确定数据与哪个数据信道相关，并且（ii） 来自发送路径上的数据的信道标识符，使得数据将以与其接收的相同格式离开通信接口。

公开(公告)号：US20030108054A1

公开(公告)日：2003-06-12

申请号：US10003520

申请日：2001-12-06

Applicant: Nortel Networks Limited

Inventor： Robert R. Williams ,  Milan M. Kantor

IPC: H04L012/28 ,  H04L012/56

CPC classification number: H04L29/12783 ,  H04L12/4633 ,  H04L29/12009 ,  H04L61/35 ,  H04L69/16 ,  H04L69/169

Abstract: IP packets are conveyed through an OSI network by encapsulating the IP packets in OSI packets. When an IP session is started, an OSI destination address is discovered by broadcasting the encapsulated IP packet to every OSI network element that supports a TCP/IP gateway. Tables are maintained to track IP session data for routing subsequent packets associated with an IP session.

Abstract translation: 通过将IP分组封装在OSI分组中，IP分组通过OSI网络传送。 当IP会话开始时，通过将封装的IP包广播到支持TCP / IP网关的每个OSI网元，发现OSI目的地址。 维护表以跟踪用于路由与IP会话相关联的后续分组的IP会话数据。

公开(公告)号：US20030099231A1

公开(公告)日：2003-05-29

申请号：US09992410

申请日：2001-11-26

Applicant: Nortel Networks Limited

Inventor： Malcolm Betts ,  Kim B. Roberts ,  Ronald J. Gagnon

IPC: H04L012/50

CPC classification number: H04Q11/0478 ,  H04J3/0623 ,  H04J3/1611 ,  H04J2203/0003 ,  H04J2203/0014 ,  Y10S370/907

Abstract: A serial data stream is mapped through a cross-connect via two or more parallel independent shelves. The serial data stream is split into at least two sub-streams. If the lead frame of a sub-stream contains a concatenation indicator, it is replacing by a valid payload pointer, and a split indicator is inserted into the frame. Each of the sub-streams is then mapped through the cross-connect via a respective parallel independent shelf. Finally, the sub-streams are recombined to form an output serial data stream equivalent to the original serial data stream. If the lead frame of a sub-stream contains a split indicator, a concatenation indicator is inserted into the corresponding frame of the output serial data stream to restore the concatenation of the original serial data stream. Otherwise, a payload pointer within the lead frame is replaced by a valid payload pointer in the corresponding frame of the output data stream.

Abstract translation: 串行数据流通过两个或更多个并行独立的架子通过交叉连接进行映射。 串行数据流被分成至少两个子流。 如果子流的引导帧包含级联指示符，则它将替换为有效的有效负载指针，并将分割指示符插入到该帧中。 然后通过交叉连接经由相应的并行独立搁架映射每个子流。 最后，子流被重组以形成等同于原始串行数据流的输出串行数据流。 如果子流的引导帧包含分离指示符，则将串联指示符插入到输出串行数据流的相应帧中，以恢复原始串行数据流的级联。 否则，引导帧内的有效载荷指针将被输出数据流的相应帧中的有效载荷指针所取代。

公开(公告)号：US20030043433A1

公开(公告)日：2003-03-06

申请号：US10191512

申请日：2002-07-10

Applicant: Nortel Networks Limited

Inventor： John Kenton White

IPC: H04B010/00 ,  H04B010/12

CPC classification number: H04L7/0075 ,  H01S5/0656 ,  H01S5/0657

Abstract: All optical clock recovery includes a transmitter for generating an optical timing signal. The transmitter includes a semiconductor laser for the production of a dynamically synchronizable timing signal, the laser having an external resonator for feedback of the timing signal to the laser, the feedback having a delay time greater than a relaxation oscillation time for the laser, and the laser outputting an optical timing signal having a characteristic dynamic. The transmitter supplies the optical timing signal to a receiver configured to receive the timing signal and to synchronize to the laser on receipt of the timing signal, such that the receiver outputs a recovered timing signal having the characteristic dynamic. A number of receivers may be provided in sequence along an optical path, each receiver configured to receive the timing signal originally outputted with the characteristic dynamic from the transmitter, and synchronized to the transmitter on receiving the signal and thereby outputting a recovered timing signal having the characteristic dynamic. All optical clock recovery is provided without increased electronic complexity and avoids thermal drift.

Abstract translation: 所有光时钟恢复包括用于产生光学定时信号的发射机。 发射机包括用于产生动态可同步的定时信号的半导体激光器，该激光器具有外部谐振器，用于向激光器反馈定时信号，反馈具有大于激光器的弛豫振荡时间的延迟时间， 激光输出具有特征动态的光学定时信号。 发射机将光学定时信号提供给被配置为接收定时信号并且在接收到定时信号时与激光器同步的接收机，使得接收机输出具有特征动态的恢复的定时信号。 可以沿着光路顺序地提供多个接收机，每个接收机被配置为从发射机接收原始以特征动态输出的定时信号，并且在接收到信号时同步到发射机，从而输出恢复的定时信号， 特征动态。 提供所有光时钟恢复，而不会增加电子复杂性并避免热漂移。