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公开(公告)号：US06710913B1
公开(公告)日：2004-03-23
申请号：US10326125
申请日：2002-12-23
IPC分类号： G02F202
CPC分类号： H04J14/0227 , H04J14/0238 , H04J14/0241 , H04J14/0278
摘要： A technique for wave-mixing frequency translation is disclosed. In one particular exemplary embodiment, the technique may be realized as a general construction for multi-log wave-mixing unicast or multicast cross-connects, with b×b space-switching elements, where b≧2. The resulting cross-connects support all-optical frequency-conversion, and they exploit multi-stage wave-mixing bulk frequency-translation In these cross-connects, for any light-path the worst case number of cascaded frequency-conversions is O(logb W), where W is the number of wavelengths per fiber. The wavelength-converter requirements are of between O(F) and O(F logb W), per stage and per plane, where F is the number of fibers.
摘要翻译： 公开了一种波混频技术。 在一个特定的示例性实施例中，该技术可以被实现为用于多对数波混合单播或多播交叉连接的一般结构，其中b×b空间切换元件，其中b> = 2。 所产生的交叉连接支持全光频率转换，并且它们利用多级波混频体频转换在这些交叉连接中，对于任何光路，最差情况下的级联频率转换数为O（logb W），其中W是每个光纤的波长数。 波长转换器要求在O（F）和O（F logb W）之间，每级和每平面，其中F是纤维数。
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公开(公告)号：US06825971B1
公开(公告)日：2004-11-30
申请号：US10325978
申请日：2002-12-23
IPC分类号： G02F202
CPC分类号： G02F1/3534 , G02F2/002
摘要： A technique for wave-mixing bulk frequency conversion in a network comprising one or more channels is disclosed that enables cost-effective wavelength-conversion. In one particular exemplary embodiment, the technique may be realized by a new class of multi-log wave-mixing-cross-connects that are based on arbitrary b×b space-switching elements, where b>2. In such cross-connects, for any light-path, the worst case number of cascaded frequency-conversions is O(logb(FW)), F being the number of fibers. One benefit of the new design may be maximized when W=O(F), b=O(F), and the worst-case number of cascaded conversions is O(1).
摘要翻译： 公开了一种用于在包括一个或多个信道的网络中进行波混频体频率转换的技术，其实现成本有效的波长转换。 在一个特定的示例性实施例中，该技术可以通过基于任意bxb空间切换元件的新类别的多对数波混合交叉连接来实现，其中b> 2。 在这种交叉连接中，对于任何光路，级联频率转换的最坏情况数量为O（logb（FW）），F为光纤数。 当W = O（F），b = O（F）时，新设计的一个好处可能会最大化，最坏情况下级联转换次数为O（1）。
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3.发明授权Technique for selectively frequency translating optical channels in an optical network 失效在光网络中选择性地频率转换光信道的技术公开(公告)号：US06762877B1
公开(公告)日：2004-07-13
申请号：US10094655
申请日：2002-03-12
IPC分类号： G02F1365
CPC分类号： H04Q11/0005 , H04Q2011/0011 , H04Q2011/0024 , H04Q2011/0052
摘要： A technique for selectively frequency translating optical channels in an optical network is disclosed. In one exemplary embodiment, the technique is realized as a method for selectively frequency translating optical channels in a system having W optical frequencies. The method comprises selectively directing an optical channel operating at a respective one of the W optical frequencies based at least in part upon the respective optical frequency of the optical channel. The method also comprises shifting the respective optical frequency of the selectively directed optical channel by an amount defined by ±2i&Dgr;f, wherein &Dgr;f is an optical frequency spacing between adjacent optical channels, and i=0, 1, . . . log2W−1.
摘要翻译： 公开了一种用于在光网络中选择性地频率转换光信道的技术。 在一个示例性实施例中，该技术被实现为用于在具有W个光频率的系统中选择性地频率转换光信道的方法。 该方法包括至少部分地基于光信道的相应光频率来选择性地引导在W个光频率中的相应一个上操作的光信道。 该方法还包括将选择性定向的光通道的相应光频率移动由±2 Deltaf定义的量，其中Deltaf是相邻光通道之间的光频间隔，i = 0,1。 。 。 log2W-1。
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4.发明授权Techniques for dilating and reverse dilating optical channels in an optical system 失效用于在光学系统中扩张和反向扩展光通道的技术公开(公告)号：US07068935B1
公开(公告)日：2006-06-27
申请号：US10195531
申请日：2002-07-16
申请人： Abel C. Dasylva , Delfin Y. Montuno
发明人： Abel C. Dasylva , Delfin Y. Montuno
IPC分类号： H04J14/00
CPC分类号： H04J14/0227 , H04J14/0241 , H04J14/0279
摘要： Techniques for dilating and reverse dilating optical channels in an optical system are disclosed. In one particular exemplary embodiment, a technique for dilating optical channels may be realized as a method for dilating optical channels in a system having W optical frequencies. The method comprises receiving a plurality of optical channels each operating at a respective one of the W optical frequencies. The method also comprises converting the optical frequency of each of the plurality of optical channels into a respective converted optical frequency defined by Δ+δ.f, wherein f represents the optical frequency of each of the plurality of optical channels, and wherein δ=±1 and Δ are constant for all of the plurality of optical channels. The method further comprises directing each of the plurality of optical channels based at least in part upon the respective converted optical frequency of each of the plurality of optical channels.
摘要翻译： 公开了用于在光学系统中扩张和反向扩展光通道的技术。 在一个特定示例性实施例中，用于扩展光通道的技术可以被实现为用于在具有W个光频率的系统中扩展光通道的方法。 该方法包括接收多个光通道，每个光通道在W光频率的相应一个处工作。 该方法还包括将多个光通道中的每一个的光频率转换成由Delta + delta.f限定的相应转换的光频率，其中f表示多个光通道中的每一个的光频率，并且其中δ=± 1和Delta对于所有多个光通道是恒定的。 该方法还包括至少部分地基于多个光信道中的每一个的相应转换的光频率来指引多个光信道中的每一个。
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5.发明授权公开(公告)号：US06999682B2
公开(公告)日：2006-02-14
申请号：US09750304
申请日：2000-12-29
IPC分类号： H04B10/00
CPC分类号： H04J14/02
摘要： A technique for optically converting wavelengths in a multi-wavelength system is disclosed. In one embodiment, wherein the multi-wavelength system has W wavelength channels, wherein W=2N, the technique is realized by selectively directing a received frequency channel corresponding to a respective wavelength channel based upon a predetermined frequency mapping. Then, the frequency of the selectively directed frequency channel is shifted at least once by an amount defined by ±2iΔf, wherein Δf is the frequency spacing between adjacent frequency channels, and i=0, 1, . . . N−1.
摘要翻译： 公开了一种用于光学转换多波长系统中的波长的技术。 在一个实施例中，其中多波长系统具有W波长信道，其中W = 2 N，该技术通过基于预定频率选择性地指向对应于相应波长信道的接收频率信道来实现 映射。 然后，选择性定向的频道的频率至少移动一次由±2ΔDttaf定义的量，其中Deltaf是相邻频道之间的频率间隔，i = 0,1， 。 。 。 N-1。
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6.发明授权公开(公告)号：US07106977B1
公开(公告)日：2006-09-12
申请号：US10303015
申请日：2002-11-25
申请人： Abel C. Dasylva , Delfin Y. Montuno
发明人： Abel C. Dasylva , Delfin Y. Montuno
IPC分类号： H04B10/00
CPC分类号： H04Q11/0005 , H04J14/0227 , H04J14/0278 , H04Q2011/0011
摘要： A technique for multicasting an optical frequency channel in a multi-channel optical system is disclosed. In one particular exemplary embodiment, the technique may be realized as a method for multicasting an optical frequency channel in a multi-channel optical system. The method comprises splitting a first optical frequency channel in a pair of adjacent optical frequency channels into a first split optical frequency channel and a second split optical frequency channel. The method also comprises converting the optical frequency of the second split optical frequency channel to the optical frequency of the second optical frequency channel in the pair of adjacent optical frequency channels. The method further comprises selectively directing the first split optical frequency channel and the converted second split optical frequency channel to separate destinations.
摘要翻译： 公开了一种在多通道光学系统中组播光频道的技术。 在一个特定的示例性实施例中，该技术可以被实现为用于在多信道光学系统中多播光信道的方法。 该方法包括将一对相邻光频道中的第一光频道分解为第一分裂光频道和第二分裂光频道。 该方法还包括将第二分裂光频道的光频率转换成该对相邻光频道中的第二光频道的光频率。 该方法还包括选择性地将第一分裂光频道和转换的第二分裂光频信道引导到分离的目的地。
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公开(公告)号：US07010225B1
公开(公告)日：2006-03-07
申请号：US09749946
申请日：2000-12-29
IPC分类号： H04B10/00
CPC分类号： H04Q11/0005 , H04J14/0227 , H04J14/0278 , H04Q2011/0011
摘要： A technique for interchanging wavelengths in a multi-wavelength system having W wavelength channels is disclosed. In one embodiment, the technique is realized by selectively directing a pair of adjacent frequency channels corresponding to a respective pair of adjacent wavelength channels based upon a routing algorithm. The frequencies of the selectively directed pair of adjacent frequency channels are then interchanged. The interchanged frequencies of the selectively directed pair of adjacent frequency channels are then selectively shifted based upon a binary representation of each interchanged frequency.
摘要翻译： 公开了一种用于交换具有W个波长信道的多波长系统中的波长的技术。 在一个实施例中，该技术通过基于路由算法选择性地引导对应于相应的一对相邻波长信道的一对相邻频率信道来实现。 然后，有选择地定向的一对相邻频道的频率被互换。 然后，基于每个互换频率的二进制表示，有选择地定向的一对相邻频道的互换频率被选择性地移位。
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公开(公告)号：US07054557B1
公开(公告)日：2006-05-30
申请号：US09685090
申请日：2000-10-11
申请人： Abel C. Dasylva , Delfin Y. Montuno , Yanhe Fan
发明人： Abel C. Dasylva , Delfin Y. Montuno , Yanhe Fan
IPC分类号： H04J14/00
CPC分类号： H04J14/0227 , H04J14/0241 , H04J14/0284 , H04L45/00 , H04L45/50 , H04L45/62 , H04Q11/0062 , H04Q2011/0073 , H04Q2011/0077
摘要： A technique for routing data within an optical network having a plurality of network nodes is disclosed. In one embodiment, the technique is realized by receiving data at a first network node via a first optical signal having a first wavelength. The first wavelength corresponds to a first optical frequency, and the first optical frequency is mapped to a first binary representation. The first binary representation is divided into a first plurality of fields, wherein at least one of the first plurality of fields corresponds to a routing label in a first label stack. A top routing label in the first label stack indicates a second network node. Based at least partially upon the top routing label, the data is transmitted from the first network node to the second network node via a second optical signal having a second wavelength. The first wavelength may be either the same as or different from the second wavelength.
摘要翻译： 公开了一种在具有多个网络节点的光网络内路由数据的技术。 在一个实施例中，该技术通过经由具有第一波长的第一光信号在第一网络节点处接收数据来实现。 第一波长对应于第一光频率，第一光频率被映射到第一二进制表示。 第一二进制表示被分成第一多个字段，其中第一多个字段中的至少一个字段对应于第一标签栈中的路由标签。 第一个标签堆栈中的顶部路由标签指示第二个网络节点。 至少部分地基于顶部路由标签，数据经由具有第二波长的第二光信号从第一网络节点传送到第二网络节点。 第一波长可以与第二波长相同或不同。
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公开(公告)号：US07336672B1
公开(公告)日：2008-02-26
申请号：US10422796
申请日：2003-04-25
IPC分类号： H04L12/28
CPC分类号： H04L47/10 , H04L47/283 , H04L47/30 , H04L47/32
摘要： Various techniques for queue management based on random early detection (RED) are disclosed herein. In particular, a method for generating a drop probability for an incoming packet in a device having a queue to buffer packets between segments of a network is provided. The method comprises determining, upon receipt of an incoming packet, a size of the queue and determining an error based at least in part on a difference between the queue size and a threshold. The method further comprises determining a drop probability for the incoming packet based at least in part on the error and a constant gain factor. The constant gain factor may be based at least in part on a linearized second order dynamic model of the network.
摘要翻译： 本文中公开了基于随机早期检测（RED）的队列管理的各种技术。 特别地，提供了一种用于在具有队列以在网络的段之间缓冲分组的设备中生成用于输入分组的丢弃概率的方法。 该方法包括在接收到传入分组时确定队列的大小并且至少部分地基于队列大小与阈值之间的差异来确定错误。 该方法还包括至少部分地基于误差和恒定增益因子确定输入分组的丢弃概率。 恒定增益因子可以至少部分地基于网络的线性化二阶动态模型。
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公开(公告)号：US07130926B1
公开(公告)日：2006-10-31
申请号：US09891011
申请日：2001-06-25
申请人： Jing Wu , Delfin Y. Montuno , Guoqiang Wang
发明人： Jing Wu , Delfin Y. Montuno , Guoqiang Wang
IPC分类号： G06F15/16
摘要： Label information used by a downstream LSR is mirrored on an upstream LSR. In particular, a copy of the label information database in the downstream LSR from LDP sessions is stored on the upstream LSR. The label information database and corresponding mirror are synchronized. The mirror is employed to facilitate recovery from control plane failure through comparison of the label information database with the mirror. For example, the intersection of the label information database and the mirror may be calculated and employed as the updated label information database and mirror.
摘要翻译： 下游LSR使用的标签信息在上游LSR上镜像。 具体来说，LDP会话的下游LSR中的标签信息数据库的副本存储在上游LSR中。 标签信息数据库和相应的镜像同步。 通过将标签信息数据库与镜像进行比较，可以使用镜子来方便从控制平面故障恢复。 例如，可以计算标签信息数据库和镜像的交集，并将其用作更新的标签信息数据库和镜像。
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