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1. 发明授权

US07535841B1 Flow-rate-regulated burst switches 失效
标题翻译：流量调节突发交换机
公开(公告)号：US07535841B1
公开(公告)日：2009-05-19
申请号：US10437628
申请日：2003-05-14
申请人： Maged E. Beshai , Bilel N. Jamoussi
发明人： Maged E. Beshai , Bilel N. Jamoussi
IPC分类号： H04L12/26
CPC分类号： H04Q11/0066 , H04L47/70 , H04L49/103 , H04L49/254 , H04L49/3072 , H04L49/357 , H04Q11/0071 , H04Q2011/0064
摘要： Burst-switching nodes using a common-memory or a time shared space switch and employing flow-rate control are disclosed. Within a switching node, data bursts are segmented into data segments of a fixed size with some segments containing information bits as well as null bits. A switching node handles data streams allocated different flow rates and, for any data stream, the internal flow rate through the switching node can be higher than the external flow rate due to null padding of segmented data. The switching node is provided with a sufficient internal capacity expansion in order to offset the effect of null padding. A controller of the switching node is provided with a flow-rate-regulation apparatus to enable scheduling the transfer of data segments across the switching node in a manner that guarantees adherence to the allocated information flow rates.
摘要翻译：公开了使用公共存储器或时间共享空间交换机并采用流量控制的突发交换节点。在切换节点内，数据脉冲串被分段成固定大小的数据段，其中一些段包含信息位以及空位。交换节点处理分配不同流量的数据流，并且对于任何数据流，通过交换节点的内部流量可能高于由于分段数据的零填充导致的外部流量。交换节点具有足够的内部容量扩展，以便抵消空填充的影响。交换节点的控制器设置有流量调节装置，以使得能够以保证遵守分配的信息流速的方式调度跨越交换节点的数据段的传送。

2. 发明授权

US07212551B1 Time-coordination in a burst-switching network 有权
标题翻译：突发交换网络中的时间协调
公开(公告)号：US07212551B1
公开(公告)日：2007-05-01
申请号：US10054509
申请日：2001-11-13
申请人： Maged E. Beshai , Bilel N. Jamoussi
发明人： Maged E. Beshai , Bilel N. Jamoussi
IPC分类号： H04J3/06
CPC分类号： H04J14/0282 , H04J3/0664 , H04J14/0227 , H04J14/0238 , H04J14/0245 , H04J14/0249 , H04Q11/0066 , H04Q2011/0084 , H04Q2011/0088
摘要： In a wide-coverage network comprising electronic edge nodes interconnected by bufferless core nodes, where each edge node comprises a source node and a sink node, both sharing an edge-node controller and having means for data storage and managing data buffers, the transfer of bursts from source nodes to sink nodes via the core nodes requires precise time coordination to prevent contention at the bufferless core nodes. A core node preferably comprises a plurality of optical switches each of which may switch entire channels or individual bursts.Each source node has a time counter and each core node has at least one time counter. All time counters have the same period and time-coordination can be realized through an exchange of time-counter readings between each source node and its adjacent core nodes. The time-counter readings are carried in-band, alongside payload data bursts destined to sink nodes, and each must be timed to arrive at a corresponding core node during a designated time interval. The difficulty of securing time-coordination arises from two interdependent requirements: communicating a time-counter reading from a controller of a source node to a controller of a core node requires that the source node be time-locked to the core node, and time-locking a source node to a core node necessitates that a controller of the core node be able to receive a time-counter reading from the source-node controller during a designated interval of time. To initiate or restore time locking, a secondary mechanism is required for directing upstream signals received from source nodes toward said master controller. The present disclosure provides such mechanisms.
摘要翻译：在包括由无缓冲核心节点互连的电子边缘节点的广泛覆盖网络中，其中每个边缘节点包括源节点和汇聚节点，共享边缘节点控制器并具有用于数据存储和管理数据缓冲器的装置，通过核心节点从源节点到宿节点的突发需要精确的时间协调，以防止无缓冲核心节点的竞争。核心节点优选地包括多个光开关，每个光开关可以切换整个信道或单个突发。每个源节点具有时间计数器，并且每个核心节点具有至少一个时间计数器。所有时间计数器具有相同的时间段，并且可以通过在每个源节点及其相邻核心节点之间交换时间计数器读数来实现时间协调。时间计数器读数与带内的有效载荷数据突发携带，并且每个定时器必须在指定的时间间隔期间定时到达对应的核心节点。确保时间协调的难度来自两个相互依赖的要求：将源节点的控制器的时间计数器读取传达到核心节点的控制器需要源节点被锁定到核心节点，将源节点锁定到核心节点需要核心节点的控制器能够在指定的时间间隔期间从源节点控制器接收时间计数器读取。为了启动或恢复时间锁定，需要辅助机制来将从源节点接收的上行信号引导到主控制器。本公开提供了这样的机制。

3. 发明授权

US07756141B1 Bimodal burst switching 失效
标题翻译：双模突发切换
公开(公告)号：US07756141B1
公开(公告)日：2010-07-13
申请号：US11858373
申请日：2007-09-20
申请人： Maged E. Beshai , Bilel N. Jamoussi
发明人： Maged E. Beshai , Bilel N. Jamoussi
IPC分类号： H04L12/28
CPC分类号： H04Q11/0066 , H04L47/10 , H04Q2011/0064
摘要： In a first mode of burst communication in a telecommunication network comprising electronic edge nodes interconnected by bufferless core nodes, data bursts are formulated at the edge nodes, respective burst descriptors are communicated to a controller of a core node, and burst-transfer schedules are sent from the core node to respective edge nodes. In a second mode, each burst-stream is allocated a flow rate and a core node determines burst sizes and schedules burst-transfer permits.In a bimodal burst-switching network comprising edge nodes interconnected by core nodes, an edge node selects to send to a core node burst-transfer requests according to the first mode, or flow-rate-allocation requests according to the second mode, depending on proximity, storage capacity at the edge node, and delay-tolerance specifications.
摘要翻译：在包括由无缓冲核心节点互连的电子边缘节点的电信网络中的突发通信的第一模式中，在边缘节点处形成数据突发，相应的突发描述符被传送到核心节点的控制器，并且发送突发传送调度从核心节点到相应的边缘节点。在第二模式中，每个突发流被分配流率，并且核心节点确定突发大小并计划突发传送许可。在包括由核心节点互连的边缘节点的双模突发交换网络中，边缘节点选择根据第一模式或根据第二模式的流量分配请求向核心节点发送突发传送请求，这取决于边缘节点处的接近度，存储容量以及延迟容差规范。

4. 发明申请

US20080165688A1 Regulating Data-Burst Transfer 有权
标题翻译：调节数据突发传输
公开(公告)号：US20080165688A1
公开(公告)日：2008-07-10
申请号：US12051317
申请日：2008-03-19
申请人： Maged E. Beshai , Bilel N. Jamoussi
发明人： Maged E. Beshai , Bilel N. Jamoussi
IPC分类号： G08C15/06
CPC分类号： H04Q11/0066 , H04Q2011/0064
摘要： The invention discloses methods and apparatus for regulating the transfer of data bursts across a data network comprising electronic edge nodes interconnected by fast-switching optical core nodes. To facilitate switching at an electronic edge node, data bursts are organized into data segments of equal size. A data segment may include null data in addition to information bits. The null data are removed at the output of an edge node and the information data is collated into bursts, each carrying only information bits in addition to a header necessary for downstream processing. To ensure loss-free transfer of bursts from the edge to the core, burst transfer permits are generated at controllers of the optical core and sent to respective edge nodes based on flow-rate-allocation requests. Null-padding is not visible outside the edge nodes and only the information content is subject to transfer rate regulation to ensure high efficiency and high service quality.
摘要翻译：本发明公开了一种用于调节跨数据网络的数据突发传输的方法和装置，该数据网络包括通过快速切换光核心节点互联的电子边缘节点。为了便于在电子边缘节点处的切换，数据突发被组织成相等大小的数据段。除了信息位之外，数据段可以包括空数据。空值数据在边缘节点的输出处被去除，并且信息数据被对照成突发，除了下游处理所需的标题之外，它们仅携带信息位。为了确保从边缘到核心的脉冲串的无损传输，在光核心的控制器处产生突发传送许可，并基于流速分配请求发送到相应的边缘节点。在边缘节点外部看不到零填充，只有信息内容受到传输速率调节，以确保高效率和高服务质量。

5. 发明授权

US07397792B1 Virtual burst-switching networks 失效
标题翻译：虚拟突发交换网络
公开(公告)号：US07397792B1
公开(公告)日：2008-07-08
申请号：US10682467
申请日：2003-10-09
申请人： Maged E. Beshai , Bilel N. Jamoussi
发明人： Maged E. Beshai , Bilel N. Jamoussi
IPC分类号： H04L12/66
CPC分类号： H04Q11/0066 , H04L12/56 , H04L45/122 , H04L45/124 , H04L45/20 , H04L45/302 , H04L45/40 , H04L45/62 , H04Q2011/0045 , H04Q2011/0064
摘要： A time-shared network comprising edge nodes and optical core nodes may be dynamically divided into several embedded networks, each of which covering selected edge nodes. At least one of the edge nodes may host an embedded-network controller operable to form multiple-source flow-rate allocation requests each of the requests specifying flow-rate allocations to a plurality of paths from several source nodes to several sink nodes. A core node may also host an embedded-network controller or several embedded-network controllers. The time-shared network may use both time-division multiplexing and burst switching.
摘要翻译：包括边缘节点和光核心节点的时间共享网络可以被动态划分成几个嵌入式网络，每个嵌入式网络覆盖所选择的边缘节点。至少一个边缘节点可以托管嵌入式网络控制器，其可操作以形成多个源流量分配请求，每个请求指定流量分配到从多个源节点到多个汇聚节点的多个路径。核心节点还可以托管嵌入式网络控制器或多个嵌入式网络控制器。时分复用网络可以同时使用时分复用和突发交换。

6. 发明授权

US07359396B1 Optical-core network with selective signal queueing 失效
标题翻译：具有选择性信号排队的光核网络
公开(公告)号：US07359396B1
公开(公告)日：2008-04-15
申请号：US10682472
申请日：2003-10-09
申请人： Maged E. Beshai , Bilel N. Jamoussi
发明人： Maged E. Beshai , Bilel N. Jamoussi
IPC分类号： H04L12/28
CPC分类号： H04Q11/0066 , H04Q11/0005 , H04Q2011/002 , H04Q2011/0033 , H04Q2011/0039 , H04Q2011/0045 , H04Q2011/0088
摘要： A core network shared by a large number of edge nodes comprises core nodes interconnected by core channels. Selected core channels are provided with buffers to enable temporal alignment of signals arriving at any core node from several other core nodes. A buffer may be provided at either end of a core channel. Otherwise, all other ports of the core node may be bufferless. Providing such buffers enables the construction of high-capacity wide-coverage network comprising a large number of core nodes shared by numerous edge nodes. Methods of temporal coordination among the network nodes are disclosed.
摘要翻译：由大量边缘节点共享的核心网络包括由核心信道互连的核心节点。所选择的核心通道具有缓冲器，以使得到达来自若干其他核心节点的任何核心节点的信号的时间对准。可以在核心通道的任一端提供缓冲器。否则，核心节点的所有其他端口可能是无缓冲的。提供这样的缓冲器使得能够构建包括大量边缘节点共享的大量核心节点的高容量宽覆盖网络。公布了网络节点间时间协调的方法。

7. 发明授权

US08406246B2 Rate-controlled optical burst switching 失效
标题翻译：速率控制光突发交换
公开(公告)号：US08406246B2
公开(公告)日：2013-03-26
申请号：US11625949
申请日：2007-01-23
申请人： Maged E. Beshai , Bilel N. Jamoussi
发明人： Maged E. Beshai , Bilel N. Jamoussi
IPC分类号： H04L12/28
CPC分类号： H04W28/0257 , H04L45/44 , H04L47/724 , H04L47/781 , H04L47/783 , H04Q11/0066 , H04Q2011/0064 , H04Q2011/0083 , H04Q2011/0088 , H04W28/0252 , H04W28/16 , H04W28/18 , H04W28/20 , H04W28/22 , H04W72/0406 , H04W72/0413 , H04W72/042 , H04W72/1205 , H04W72/1257 , H04W72/1263 , H04W72/1268 , H04W72/1273 , H04W72/1278 , H04W72/1284 , H04W72/1289 , H04W72/1294 , H04W72/14 , H04W74/002 , H04W74/004 , H04W74/006
摘要： The invention provides a method and network communication equipment for low latency loss-free burst switching. Burst-transfer schedules are determined by controllers of bufferless core nodes according to specified bitrate allocations and distributed to respective edge nodes. In a composite-star network, burst schedules are initiated by any core node. Burst formation takes place at source edge nodes and a permissible burst size is determined according to an allocated bitrate of a burst stream to which the burst belongs. The permissible burst size is subject to constraints such as permissible burst-formation delay, a minimum guard-time requirement, and permissible delay jitter. A method of control-burst exchange between each edge node and each bufferless core node enables burst scheduling, time coordination, and loss-free burst switching. Both the payload bursts and control bursts are carried by optical channels connecting the edge nodes and the core nodes.
摘要翻译：本发明提供了一种低延迟无损脉冲串切换的方法和网络通信设备。突发传输调度由无缓冲核心节点的控制器根据指定的比特率分配确定并分发给相应的边缘节点。在复合星形网络中，突发计划由任何核心节点启动。突发形成发生在源边缘节点处，并且根据突发所属的突发流的分配比特率来确定允许的突发大小。允许的突发尺寸受到诸如允许的突发形成延迟，最小保护时间要求和允许的延迟抖动等约束。每个边缘节点和每个无缓冲核心节点之间的控制 - 突发交换的方法使能脉冲串调度，时间协调和无损脉冲串切换。有效载荷突发和控制突发都由连接边缘节点和核心节点的光信道承载。

8. 发明授权

US07889723B2 Virtual burst-switching networks 有权
标题翻译：虚拟突发交换网络
公开(公告)号：US07889723B2
公开(公告)日：2011-02-15
申请号：US12135526
申请日：2008-06-09
申请人： Maged E. Beshai , Bilel N. Jamoussi
发明人： Maged E. Beshai , Bilel N. Jamoussi
IPC分类号： H04L12/66
CPC分类号： H04Q11/0066 , H04L12/56 , H04L45/122 , H04L45/124 , H04L45/20 , H04L45/302 , H04L45/40 , H04L45/62 , H04Q2011/0045 , H04Q2011/0064
摘要： A time-shared network comprising edge nodes and optical core nodes may be dynamically divided into several embedded networks, each of which covering selected edge nodes. At least one of the edge nodes may host an embedded-network controller operable to form multiple-source flow-rate allocation requests each of the requests specifying flow-rate allocations to a plurality of paths from several source nodes to several sink nodes. A core node may also host an embedded-network controller or several embedded-network controllers. The time-shared network may use both time-division multiplexing and burst switching.
摘要翻译：包括边缘节点和光核心节点的时间共享网络可以被动态划分成几个嵌入式网络，每个嵌入式网络覆盖所选择的边缘节点。至少一个边缘节点可以托管嵌入式网络控制器，其可操作以形成多个源流量分配请求，每个请求指定流量分配到从多个源节点到多个汇聚节点的多个路径。核心节点还可以托管嵌入式网络控制器或多个嵌入式网络控制器。时分复用网络可以同时使用时分复用和突发交换。

9. 发明授权

US07187654B1 Rate-controlled optical burst switching 有权
标题翻译：速率控制光突发交换
公开(公告)号：US07187654B1
公开(公告)日：2007-03-06
申请号：US10054512
申请日：2001-11-13
申请人： Maged E. Beshai , Bilel N. Jamoussi
发明人： Maged E. Beshai , Bilel N. Jamoussi
IPC分类号： G01R31/08
CPC分类号： H04W28/0257 , H04L45/44 , H04L47/724 , H04L47/781 , H04L47/783 , H04Q11/0066 , H04Q2011/0064 , H04Q2011/0083 , H04Q2011/0088 , H04W28/0252 , H04W28/16 , H04W28/18 , H04W28/20 , H04W28/22 , H04W72/0406 , H04W72/0413 , H04W72/042 , H04W72/1205 , H04W72/1257 , H04W72/1263 , H04W72/1268 , H04W72/1273 , H04W72/1278 , H04W72/1284 , H04W72/1289 , H04W72/1294 , H04W72/14 , H04W74/002 , H04W74/004 , H04W74/006
摘要： A method and apparatus are provided for low latency loss-free burst switching. Burst schedules are initiated by controllers of bufferless core nodes and distributed to respective edge nodes. In a composite-star network, the burst schedules are initiated by any of a plurality of bufferless core nodes and distributed to respective edge nodes. Burst formation takes place at source nodes and a burst size is determined according to an allocated bitrate of a burst stream to which the burst belongs. An allocated bitrate of a burst stream may be modified according to observed usage of scheduled bursts of a burst stream. A method of control-burst exchange between each of a plurality of edge nodes and each of a plurality of bufferless core nodes enables burst scheduling, time coordination, and loss-free burst switching. Both the payload bursts and control bursts are carried by optical channels connecting the edge nodes and the core nodes. A method and a circuit are provided for generating burst descriptors wherein each burst is associated with a burst stream and each burst stream is allocated a service bitrate. The generated burst descriptors are used in each master controller in each core node to create the burst schedules. In a conventional burst-scheduling process, the burst queues at a master controller of an optical switch receives burst descriptors from the source nodes and schedules the burst switching times. In a distinct departure, according to the present invention, the burst descriptors are generated by a master controller of an optical switch in a core node, the switching times of the corresponding bursts are scheduled, and the schedules are distributed to the respective edge nodes. The burst-descriptor generation is based on burst-stream bitrate-allocation defined by the source nodes.
摘要翻译：提供了一种低延迟无损脉冲串切换的方法和装置。突发时间表由无缓冲核心节点的控制器启动并分发到相应的边缘节点。在复合星形网络中，突发计划由多个无缓冲核心节点中的任何一个发起，并分发给相应的边缘节点。突发形成发生在源节点处，并且突发大小根据突发所属的突发流的分配比特率来确定。突发流的分配比特率可以根据观察到的突发流的调度突发的使用而被修改。多个边缘节点和多个无缓冲核心节点中的每一个之间的控制 - 突发交换的方法使得能够进行突发调度，时间协调和无损脉冲切换。有效载荷突发和控制突发都由连接边缘节点和核心节点的光信道承载。提供了一种用于产生突发描述符的方法和电路，其中每个突发与突发流相关联，并且每个突发流被分配服务比特率。在每个核心节点的每个主控制器中使用所生成的突发描述符来创建突发时间表。在传统的突发调度过程中，光交换机的主控制器处的突发队列从源节点接收脉冲串描述符并且调度脉冲串切换时间。根据本发明，根据本发明，由核心节点中的光交换机的主控制器生成突发描述符，调度相应突发的切换时间，并将该调度分配给各个边缘节点。突发描述符生成基于由源节点定义的突发流比特率分配。

10. 发明申请

US20090207859A1 Flow-Rate-Regulated Burst Switches 有权
标题翻译：流量调节突发开关
公开(公告)号：US20090207859A1
公开(公告)日：2009-08-20
申请号：US12427106
申请日：2009-04-21
申请人： Maged E. Beshai , Bilel N. Jamoussi
发明人： Maged E. Beshai , Bilel N. Jamoussi
IPC分类号： H04J3/24
CPC分类号： H04Q11/0066 , H04L47/70 , H04L49/103 , H04L49/254 , H04L49/3072 , H04L49/357 , H04Q11/0071 , H04Q2011/0064
摘要： Burst-switching nodes using a common-memory or a time shared space switch and employing flow-rate control are disclosed. Within a switching node, data bursts are segmented into data segments of a fixed size with some segments containing information bits as well as null bits. A switching node handles data streams allocated different flow rates and, for any data stream, the internal flow rate through the switching node can be higher than the external flow rate due to null padding of segmented data. The switching node is provided with a sufficient internal capacity expansion in order to offset the effect of null padding. A controller of the switching node is provided with a flow-rate-regulation apparatus to enable scheduling the transfer of data segments across the switching node in a manner that guarantees adherence to the allocated information flow rates.
摘要翻译：公开了使用公共存储器或时间共享空间交换机并采用流量控制的突发交换节点。在切换节点内，数据脉冲串被分段成固定大小的数据段，其中一些段包含信息位以及空位。交换节点处理分配不同流量的数据流，并且对于任何数据流，通过交换节点的内部流量可能高于由于分段数据的零填充导致的外部流量。交换节点具有足够的内部容量扩展，以便抵消空填充的影响。交换节点的控制器设置有流量调节装置，以使得能够以保证遵守分配的信息流速的方式调度跨越交换节点的数据段的传送。

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