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1. 发明授权

US5568475A ATM network architecture employing an out-of-band signaling network 失效
标题翻译：采用带外信令网络的ATM网络架构
公开(公告)号：US5568475A
公开(公告)日：1996-10-22
申请号：US360897
申请日：1994-12-21
申请人： Bharat T. Doshi , N. Farber , P. Harshavardhana , Rajiv Kapoor , Arik Kashper , Steven S. Katz , Kathleen S. Meier-Hellstern , Thomas S. Guiffrida
发明人： Bharat T. Doshi , N. Farber , P. Harshavardhana , Rajiv Kapoor , Arik Kashper , Steven S. Katz , Kathleen S. Meier-Hellstern , Thomas S. Guiffrida
IPC分类号： H04Q3/545 , H04L12/56 , H04L12/64 , H04M3/00 , H04M7/00 , H04M7/06 , H04Q3/00 , H04Q11/04
CPC分类号： H04L49/105 , H04L12/6402 , H04L49/15 , H04L49/253 , H04L49/3081 , H04Q11/0478 , H04J2203/0012 , H04J2203/0066 , H04L2012/563 , H04L49/30
摘要： An Asynchronous Transfer(ATM) network comprising a plurality of ATM switches may be arranged so that it receives calls from Synchronous Transfer Mode (STM) switches that employ out-of-band signaling such that the ATM switches communicate telephone call signaling information between each other and the STM switches via an out-of-band signaling network associated with the ATM network and interface with out-of-band networks associated with the STM switches.
摘要翻译：可以布置包括多个ATM交换机的异步传输（ATM）网络，以便它接收来自使用带外信令的同步传输模式（STM）交换机的呼叫，使得ATM交换机在彼此之间传送电话呼叫信令信息并且STM通过与ATM网络相关联的带外信令网络切换，并与与STM交换机相关联的带外网络进行接口。

2. 发明授权

US5483527A Terminal adapter for interfacing an ATM network with a STM network 失效
标题翻译：用于将ATM网络与STM网络连接的终端适配器
公开(公告)号：US5483527A
公开(公告)日：1996-01-09
申请号：US360896
申请日：1994-12-21
申请人： Bharat T. Doshi , N. Farber , P. Harshavardhana , Rajiv Kapoor , Arik Kashper , Steven S. Katz , Kathleen S. Meier-Hellstern
发明人： Bharat T. Doshi , N. Farber , P. Harshavardhana , Rajiv Kapoor , Arik Kashper , Steven S. Katz , Kathleen S. Meier-Hellstern
IPC分类号： H04L12/56 , H04L12/66 , H04Q11/04
CPC分类号： H04L49/3081 , H04L12/66 , H04Q11/0478 , H04J2203/0066 , H04J2203/0089 , H04L2012/5619 , H04L2012/563 , H04L2012/5652
摘要： An Asynchronous Transfer Mode (ATM) network comprising a plurality of ATM switches may be arranged so that it may receive for routing telephone calls originating at Synchronous Transfer Mode (STM) switches. This may be done in the ATM network by accumulating voice signals as they are received from a STM switch and forming an ATM data-cell payload when the accumulation includes a predetermined number of the voice signals, e.g., 48 voice signals. The payload and a header, including a virtual channel identifier determined as a function of the identity of the STM trunk over which the voice signals were received, may then be supplied to an associated ATM switch for routing to an intended destination.
摘要翻译：可以布置包括多个ATM交换机的异步传输模式（ATM）网络，使得其可以接收用于路由以同步传输模式（STM）交换机发起的电话呼叫。这可以在ATM网络中通过在从STM交换机接收到的语音信号中累积并且当累积包括预定数量的语音信号（例如48个语音信号）时形成ATM数据信元有效载荷来完成。然后，有效载荷和包括被确定为接收到语音信号的STM中继线的身份的函数的虚拟信道标识符的报头可以被提供给相关联的ATM交换机以路由到预期目的地。

3. 发明授权

US06324179B1 ATM network arranged to interface with STM in-band signaling 失效
标题翻译： ATM网络布置成与STM带内信令进行接口
公开(公告)号：US06324179B1
公开(公告)日：2001-11-27
申请号：US08360894
申请日：1994-12-21
申请人： Bharat Tarachand Doshi , N. Farber , P. Harshavardhana , Rajiv Kapoor , Arik Kashper , Steven S. Katz , Kathleen S. Meier-Hellstern , Thomas S. Giuffrida
发明人： Bharat Tarachand Doshi , N. Farber , P. Harshavardhana , Rajiv Kapoor , Arik Kashper , Steven S. Katz , Kathleen S. Meier-Hellstern , Thomas S. Giuffrida
IPC分类号： H04L1228
CPC分类号： H04Q11/0478 , H04J2203/0066 , H04L2012/563
摘要： An Asynchronous Transfer Mode (ATM) network comprising a plurality of ATM switches may be arranged so that it receives calls from Synchronous Transfer Mode (STM) switches that employ in-band signaling by first converting in-band signals received from an STM switch to an out-of-band signaling message and then transmitting the message to the ATM switch that will route the associated call toward its destination. At an interface which interfaces the ATM switch with the out-of-band signaling network, the contents of the received message are converted to a form suitable for presentation to the ATM switch. For example, the identity of the trunk over which the call will be routed from the STM switch to the ATM switch is converted to a virtual channel identifier.
摘要翻译：包括多个ATM交换机的异步传输模式（ATM）网络可以被布置成使得它接收来自使用带内信令的同步传输模式（STM）交换机的呼叫，首先将从STM交换机接收的带内信号转换为带外信令消息，然后将消息发送到ATM交换机，ATM交换机将将相关联的呼叫路由到其目的地。在将ATM交换机与带外信令网络接口的接口上，将接收到的消息的内容转换成适合呈现给ATM交换机的形式。例如，呼叫将从STM交换机路由到ATM交换机的中继线的身份被转换为虚拟信道标识符。

4. 发明授权

US5291481A Congestion control for high speed packet networks 失效
标题翻译：高速分组网络的拥塞控制
公开(公告)号：US5291481A
公开(公告)日：1994-03-01
申请号：US771578
申请日：1991-10-04
申请人： Bharat T. Doshi , Subrahmanyam Dravida , David S. Einstein , P. Harshavardhana
发明人： Bharat T. Doshi , Subrahmanyam Dravida , David S. Einstein , P. Harshavardhana
IPC分类号： H04M3/00 , H04L12/56 , H04Q11/04 , H04J3/14
CPC分类号： H04L12/5602 , H04L49/1553 , H04Q11/0478 , H04L2012/5619 , H04L2012/563 , H04L2012/5632 , H04L2012/5634 , H04L2012/5651 , H04L2012/5652
摘要： Congestion in a high speed connection oriented packet network carrying bursty data and real time service is avoided by a novel in-call negotiation scheme for reserving bandwidth for real time calls and reserving buffer capacity for bursty calls.For a real time call, a centralized call controller in each switch in the network determines which of its outgoing trunks has available to it the peak bandwidth needed to accommodate the call. Once one of these trunks is found, the call routing is set up so that the call is directed through that trunk and the peak bandwidth requirement of the call is allocated on that output trunk for the duration of the call.The network contains one or more switches, each of which has a centralized call controller and a plurality of trunk controllers. The call controller routes calls from a plurality of input trunks to a plurality of output trunks, identifies kinds of calls, and allocates bandwidth on the output trunks. The trunk controllers perform in-call buffer reservation independent of the routing, identification, and bandwidth allocation performed by the call controller. This relieves the call controller of the extra burden of performing buffer reservation and it permits buffer reservation to be accomplished in a shorter period of time.
摘要翻译：通过一种用于为实时呼叫预留带宽和为突发呼叫预留缓冲器容量的新颖的呼叫协商方案，避免了承载突发数据和实时业务的高速连接定向分组网络中的拥塞。对于实时呼叫，网络中每个交换机中的集中式呼叫控制器确定其出站中继线可用于其适应呼叫所需的峰值带宽。一旦找到这些中继线之一，则建立呼叫路由，使得呼叫被引导通过该中继线，并且呼叫的峰值带宽需求在该呼叫的持续时间内被分配在该输出中继线上。网络包含一个或多个交换机，每个交换机具有集中呼叫控制器和多个中继控制器。呼叫控制器将来自多个输入中继线的呼叫路由到多个输出中继线，识别呼叫类型，并在输出中继线上分配带宽。中继控制器执行呼叫缓冲区预留，独立于由呼叫控制器执行的路由，标识和带宽分配。这减轻了呼叫控制器执行缓冲区预留的额外负担，并允许呼叫控制器在更短的时间内完成缓冲区预留。

5. 发明授权

US5253248A Congestion control for connectionless traffic in data networks via alternate routing 失效
标题翻译：拥塞控制通过备用路由在数据网络中实现无连接流量
公开(公告)号：US5253248A
公开(公告)日：1993-10-12
申请号：US548457
申请日：1990-07-03
申请人： Subrahmanyam Dravida , P. Harshavardhana
发明人： Subrahmanyam Dravida , P. Harshavardhana
IPC分类号： H04L12/56 , H04Q3/66
CPC分类号： H04Q3/665 , H04L45/00 , H04L45/122 , H04L45/18 , H04L45/22 , H04L47/10 , H04L47/122 , H04L47/29 , H04L47/30
摘要： A congestion control scheme for connectionless networks relieves congestion by routing a portion of traffic on a congested primary path onto a predefined alternate path constructed such that loop-freedom is guaranteed. Explicit care is taken to avoid spreading congestion onto alternate paths. The control actions are taken in a completely distributed manner, based on local measurements only and therefore no signaling messages need to be exchanged between nodes.If desired, lower loss priority may be assigned to alternate routed traffic. Congestion is monitored locally and thresholds defined to declare the onset and abatement of congestion. The present invention affords at least an order of magnitude improvement in end-to-end cell blocking under sustained focussed overload.

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