公开(公告)号：US20030103445A1

公开(公告)日：2003-06-05

申请号：US09998193

申请日：2001-12-03

Applicant: NORTEL NETWORKS LIMITED

Inventor： David G. Steer ,  Koon Hoo Teo ,  William R. Kirkland

IPC: H04J011/00

CPC classification number: H04L27/2602 ,  H04L5/143

Abstract: Wireless communication is improved by simultaneously transmitting signals that are orthogonal to received signals. This technique is referred to as Orthogonal Division Duplexing or ODD. Channel characteristics may be estimated based on an analysis of the received signals. Subsequently, techniques used in the transmitting of signals may be adjusted based on the estimated channel characteristics. By using interleaved pilot sub-carriers, each end of a communications link may take measurements of channel conditions. These measurements may be used to adapt the transmission techniques used in the transmitter to the measured channel conditions. Advantageously, this adaptation can occur without the delay in reporting conditions that is characteristic of traditional adaptive communications systems.

Abstract translation: 通过同时发送与接收信号正交的信号来提高无线通信。 该技术被称为正交分割双工或ODD。 可以基于对接收到的信号的分析来估计信道特性。 随后，可以基于估计的信道特性来调整用于发送信号的技术。 通过使用交织的导频子载波，通信链路的每一端可以进行信道条件的测量。 这些测量可以用于使发射机中使用的传输技术适应测量的信道条件。 有利地，这种适应可以在没有传统自适应通信系统的特征的报告条件的延迟的情况下发生。

公开(公告)号：US20030090758A1

公开(公告)日：2003-05-15

申请号：US09987164

申请日：2001-11-13

Applicant: NORTEL NETWORKS LIMITED

Inventor： Adrian P. Sparks ,  Alan T.R. Briggs ,  Frederick J. Lalonde ,  H.D. Wade Macleod ,  Douglas W. Fisher

IPC: H04J014/00 ,  H04B010/20

CPC classification number: H04Q11/0005 ,  H04J14/0283 ,  H04J14/0284 ,  H04J14/0295 ,  H04Q11/0071 ,  H04Q2011/0081

Abstract: A system for hybrid electronic/photonic switching of traffic in a node of a communications network includes a plurality of interfaces; an electronic cross-connect (EXC); and a photonic cross-connect (PXC). Each interface is designed to translate a respective traffic stream between corresponding electronic and optical signals. The EXC selectively maps an electronic signal through a selected one of the interfaces, and the PXC selectively couples an optical signal between the selected interface and a selected one of at least two optical channels of the communications network.

Abstract translation: 用于在通信网络的节点中的业务的混合电子/光子交换的系统包括多个接口; 电子交叉连接（EXC）; 和光子交叉连接（PXC）。 每个接口被设计成在相应的电子和光学信号之间转换相应的业务流。 EXC通过所选择的一个接口选择性地映射电子信号，并且PXC选择性地将所选接口之间的光信号与通信网络的至少两个光信道中的选定的一个耦合。

公开(公告)号：US20030081759A1

公开(公告)日：2003-05-01

申请号：US09742317

申请日：2000-12-22

Applicant: Nortel Networks Limited

Inventor： G. Kate Harris

IPC: H04M009/00 ,  H04M007/00 ,  H04M001/76

CPC classification number: H04M11/062 ,  H04M1/74 ,  H04M3/18 ,  H04M3/2272

Abstract: In a splitterless xDSL communications services set-up providing data and voice services to co-connected equipment, data signals may cause audible interference in POTs handsets. The degree of the interference varies widely due to a wide variation of customer tolerance and of susceptibility of the handsets. Reducing data channel transmission power during an off-hook event may reduce interference. A method and system are provided for user adjusted cutback. While making a POTs call, data channel power may be adjusted until acceptable performance is obtained. The customer selected power cutback influences both ATU-R and ATU-C transmit levels.

Abstract translation: 在将无数据xDSL通信服务设置为共同连接的设备提供数据和语音服务时，数据信号可能会导致POT手机中的可听干扰。 由于客户容忍度和手机敏感度的变化很大，干扰程度差异很大。 在摘机事件期间减少数据信道传输功率可能会降低干扰。 提供了一种用于用户调整的裁剪的方法和系统。 在进行POT呼叫时，可以调整数据信道功率，直到获得可接受的性能。 客户选择掉电影响ATU-R和ATU-C的传输电平。

公开(公告)号：US20030053417A1

公开(公告)日：2003-03-20

申请号：US09954192

申请日：2001-09-18

Applicant: NORTEL NETWORKS LIMITED

Inventor： Ernst A. Munter ,  Delfin Y. Montuno ,  James Aweya

IPC: H04L012/50

CPC classification number: H04L49/10 ,  H04L49/25 ,  H04L49/90

Abstract: A rotator switch includes active and redundant tandem buffers used to switch information units through the switch. The tandem buffers are interconnected to inputs and outputs by way of commutators. Information provided to one or more of the active buffers is provided to a redundant buffer. If an active tandem buffer fails, the switch may use the redundant buffer in place of the failed active buffer. A further rotator switch is formed using a plurality of switching blocks. Each switching block includes its own set of tandem buffers, and ingress and egress commutators to interconnect the tandem buffers to inputs and outputs. The plurality of switching blocks is interconnected using additional commutators. At least one of these switching blocks is redundant and is provided with information provided to an active switching block. In the event of failure of an active block, the switch may use a redundant switching block in place of the failed or replaced active block.

Abstract translation: 旋转开关包括用于通过开关切换信息单元的主动和冗余串联缓冲器。 串联缓冲器通过换向器与输入和输出互连。 提供给一个或多个活动缓冲器的信息被提供给冗余缓冲器。 如果主动串联缓冲区出现故障，则交换机可能会使用冗余缓冲区来代替故障的主动缓冲区。 使用多个切换块形成另外的旋转开关。 每个切换块包括其自己的串联缓冲器集合，以及用于将串联缓冲器互连到输入和输出的入口和出口换向器。 多个切换块使用附加换向器互连。 这些切换块中的至少一个是冗余的并且被提供有提供给有源切换块的信息。 在活动块发生故障的情况下，交换机可以使用冗余交换块来代替故障或更换的活动块。

公开(公告)号：US20030038849A1

公开(公告)日：2003-02-27

申请号：US10192780

申请日：2002-07-10

Applicant: Nortel Networks Limited

Inventor： Jeffrey Alan Craven ,  Marek Bugajski

IPC: G09G005/00

CPC classification number: H04L12/282 ,  G08C2201/41 ,  H04B1/202 ,  H04L12/2801 ,  H04L12/2803

Abstract: A method for interfacing a gateway with a plurality of electronic devices provided in a home networking environment includes establishing a communications link between the gateway and an intermediate device as well as providing input and output features at the intermediate device. A gateway in accordance with the disclosed technology may, for example, correspond to a cable modem, DSL interface, or other wireless home gateway that interfaces multiple data lines in a home networking environment. The remote intermediate device is outfitted with at least one wireless transmitter/receiver for communicating with a gateway and optionally with the networked electronic devices or appliances. Input features include a keypad with multiple user input buttons which may be actuated by a user's single hand when the remote device is held in the same single hand. Output features include a visual display such as an LCD matrix display. The visual display may be outfitted with touchscreen capabilities providing such output feature with an ability to dually function as an input feature. Additional functional components of the remote intermediate device include a processor and associated operating system, volatile and nonvolatile memory modules, an infrared transmitter/receiver, audio element, and smart battery with a recharging interface.

Abstract translation: 用于将网关与家庭联网环境中提供的多个电子设备进行接口的方法包括建立网关与中间设备之间的通信链路，以及在中间设备处提供输入和输出特征。 根据所公开的技术的网关可以例如对应于在家庭联网环境中接入多条数据线的电缆调制解调器，DSL接口或其他无线家庭网关。 远程中间设备配备有至少一个无线发射机/接收机，用于与网关进行通信，以及可选地与网络化的电子设备或设备进行通信。 输入功能包括具有多个用户输入按钮的键盘，当远程设备被保持在同一单手中时，可以由用户单手激活。 输出功能包括诸如LCD矩阵显示器之类的可视显示器。 视觉显示可以配备触摸屏功能，从而提供具有双重功能作为输入特征的能力的输出特征。 远程中间设备的附加功能部件包括处理器和相关联的操作系统，易失性和非易失性存储器模块，红外发射器/接收器，音频元件和具有充电接口的智能电池。

公开(公告)号：US20030025960A1

公开(公告)日：2003-02-06

申请号：US09961297

申请日：2001-09-25

Applicant: NORTEL NETWORKS LIMITED

Inventor： Nicola Benvenuti ,  James R. Mattson ,  Leroy A. Pick ,  Peter W. Phelps

IPC: H04J003/06

CPC classification number: H04L1/0026 ,  H04J3/12 ,  H04J3/1611 ,  H04L1/0079 ,  H04L1/24

Abstract: It is proposed that currently unused portions of transport overhead in frames sent on a high-speed outgoing channel be used to carry error count information from each of four low-speed input channels. At a 4:1 combiner, error monitoring bytes are extracted from transport overhead of frames received on each of the four input channels. Error counts are determined and accumulated for each input channel before being passed to a transport overhead generator for the outgoing channel, where they are inserted as bit patterns in unused portions of the transport overhead. At a receiving demultiplexer, the error counts are extracted from the transport overhead of incoming frames. The extracted error counts are then used to alter the error monitoring bytes included in the transport overhead of frames sent on each of four outgoing channels such that, at the far end of those outgoing channels, a correct number of errors for the three part path may be determined.

Abstract translation: 提出了在高速输出信道上发送的帧中的目前未使用的传输开销部分用于承载来自四个低速输入信道中的每一个的错误计数信息。 在4：1组合器中，从在四个输入通道中的每一个上接收的帧的传输开销中提取错误监视字节。 在传递给输出通道的传输开销生成器之前，为每个输入通道确定和累加错误计数，将其作为位模式插入到传输开销的未使用部分。 在接收解复用器处，从输入帧的传输开销中提取错误计数。 所提取的错误计数然后用于改变在四个输出信道中的每一个上发送的帧的传输开销中包括的错误监视字节，使得在这些输出信道的远端，三部分路径的正确数量的错误 确定。

公开(公告)号：US20030018820A1

公开(公告)日：2003-01-23

申请号：US10191660

申请日：2002-07-09

Applicant: NORTEL NETWORKS LIMITED

Inventor： Hamid Ould-Brahim ,  Vasile Radoaca ,  Dinesh Mohan ,  Michael Chen

IPC: G06F015/16 ,  H04L012/28 ,  H04L012/56

CPC classification number: H04L45/00 ,  H04L12/4675 ,  H04L45/50 ,  Y02D30/32

Abstract: A network can be organized for providing virtual private network services to customers into two regions. A network core for providing layer 2 transport and an associated number of logical provider edges. Each logical provider edge is partitioned into first and second portions. The first portion provides virtual private network services to customers. The second portion works with the core network to communicate with any other logical provider edge within the network. The first portion designated as the PE-Edge includes a group of functions such as a function for configuring optical Ethernet layer 2 virtual private network service, a function for service labeling, a function for ingress traffic management, and a function for information exchange between local VPN and core VPN. The second portion designated as PE-Core includes a group of functions such as a function for distributing service labels, a function for distributing information on transport tunnels, a function for information exchange between local and core VPN. Within the logical provider edge or Logical PE, the PE-Edge and PE-Core communicate via a layer 2 network.

Abstract translation: 可以组织一个网络，为客户提供虚拟专用网络服务到两个地区。 用于提供第2层传输和相关数量的逻辑提供商边缘的网络核心。 每个逻辑提供商边缘被分割成第一和第二部分。 第一部分为客户提供虚拟专用网络服务。 第二部分与核心网络一起工作，以与网络内的任何其他逻辑提供商边缘进行通信。 指定为PE边缘的第一部分包括一组功能，例如用于配置光以太网层2虚拟专网服务的功能，服务标签功能，入口业务管理功能，以及本地 VPN和核心VPN。 指定为PE-Core的第二部分包括一组功能，例如用于分发服务标签的功能，用于分发传输隧道信息的功能，本地和核心VPN之间的信息交换功能。 在逻辑提供者边缘或逻辑PE中，PE-Edge和PE-Core通过第2层网络进行通信。

公开(公告)号：US20030016808A1

公开(公告)日：2003-01-23

申请号：US09745525

申请日：2000-12-26

Applicant: NORTEL NETWORKS LIMITED

Inventor： Qingwen Hu ,  Michael L. Aalders ,  Darek R. Skalecki

IPC: H04M007/00 ,  H04L012/28

CPC classification number: H04M3/2263 ,  H04L45/10 ,  H04L45/22 ,  H04M7/0096

Abstract: Dynamic adaptation of connection-oriented networks is introduced wherein, once congestion is encountered, dynamic adaptation steps may be performed. Four adaptation steps are proposed for reacting to various network congestion scenarios. It is further recommended that the steps are performed in a particular order such that the higher severity and longer sustentation of the network congestion the more strict step is performed to alleviate the network congestion. At a switch in the connection-oriented network, utilization of a trunk carried on a link connected to the switch is monitored and, if said utilization of said trunk exceeds a first threshold, a first degree of adaptation is initialized wherein use of the trunk by further connections is prevented. Subsequent degrees of adaptation are triggered when high utilization continues and surpasses higher thresholds. The subsequent degrees of adaptation involve rerouting connections that make use of the trunk.

Abstract translation: 引入面向连接的网络的动态适配，其中一旦遇到拥塞，可以执行动态适应步骤。 提出了四种适应步骤来对各种网络拥塞场景做出反应。 还建议以特定的顺序执行这些步骤，使得网络拥塞的较高的严重性和较长的维持进行更严格的步骤来减轻网络拥塞。 在面向连接的网络中的交换机处，监视与连接到交换机的链路上携带的中继线的利用率，并且如果所述中继线的所述利用超过第一阈值，则初始化第一自适应度，其中，通过 防止进一步的连接。 当高利用率持续并超过更高的阈值时，随后的适应度被触发。 随后的适应度涉及重新路由使用中继线的连接。

公开(公告)号：US20020183020A1

公开(公告)日：2002-12-05

申请号：US10161913

申请日：2002-06-04

Applicant: Nortel Networks Limited

Inventor： Peiying Zhu ,  Wen Tong ,  Claude C. Royer

IPC: H04B001/02

CPC classification number: H04L1/1887 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0068 ,  H04L1/1854 ,  H04L27/0012

Abstract: The present invention provides a unique feedback system in a wireless communication system wherein the transmission channel is always overloaded with data, which is configured and modulated at a select order of modulation. Based on the channel conditions, only a portion of the data can be successfully received. As such, the receiver will attempt to receive the data using demodulation techniques corresponding to the different levels of modulation used to encode the data transmitted. The receiver will determine the data that is recovered, or the highest order of modulation at which the data is recovered, and provide feedback to the transmitter. The transmitter will then retransmit the data that was not properly received. By overloading the channel at all times, the maximum amount of data capable of being transmitted over the channel is optimized without requiring or heavily relying on the receiver feeding back channel condition information to the transmitter.

Abstract translation: 本发明提供了一种在无线通信系统中的独特的反馈系统，其中传输信道总是被以按调制次序配置和调制的数据过载。 基于信道条件，只有一部分数据可以被成功接收。 因此，接收机将尝试使用对应于用于对发送的数据进行编码的不同调制电平的解调技术来接收数据。 接收机将确定恢复的数据，或恢复数据的最高调制阶段，并向发射机提供反馈。 然后，发射机将重传未正确接收的数据。 通过任何时候重载信道，可以优化通过信道传输的最大数据量，而不需要或严重依赖接收机向发射机反馈信道条件信息。

公开(公告)号：US20020141381A1

公开(公告)日：2002-10-03

申请号：US09725921

申请日：2000-11-30

Applicant: Nortel Networks Limited

Inventor： Michael M. Gawargy ,  Johanna Pearl Ruth Nicoletta

IPC: H04L012/66 ,  H04L012/28 ,  H04L012/56

CPC classification number: H04L65/1096 ,  H04L29/06027 ,  H04L65/1006 ,  H04L65/4007 ,  H04M7/006 ,  H04Q3/0029

Abstract: A method and system enables distributed transaction oriented telephony functionality for telephony services in a broadband packet network. Exemplary distributed transaction oriented telephony functionality includes Intelligent Network (IN) and Advanced Intelligent Network (AIN) functionality accessed through the legacy Common Channel Signaling (CCS) network using transaction-based messaging protocols, such as Intelligent Network Application Part (INAP) and/or Transaction Capability Application Part (TCAP) protocols. A functional content of a transaction message, such as a TCAP message, is encapsulated in a Protocol Data Unit (PDU) of the broadband packet network. The PDU is forwarded through the broadband packet network to a second network element. The functionality is then invoked using the encapsulated transaction message functional content. In preferred embodiments the PDU is a Session Initiation Protocol (SIP) envelope, into which TCAP message functional content can be mapped.

Abstract translation: 方法和系统为宽带分组网络中的电话服务实现分布式面向事务的电话功能。 示例性的分布式面向事务的电话功能包括通过使用基于事务的消息传递协议（例如智能网络应用部分（INAP））和/或（例如）的基于传统公共信道信令（CCS）网络的智能网（IN）和高级智能网（AIN） 交易能力应用部分（TCAP）协议。 诸如TCAP消息的交易消息的功能内容被封装在宽带分组网络的协议数据单元（PDU）中。 PDU通过宽带分组网络转发到第二网络单元。 然后使用封装的事务消息功能内容来调用该功能。 在优选实施例中，PDU是可以映射TCAP消息功能内容的会话发起协议（SIP）包络。