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1. 发明授权

US06771908B2 Fast protection switching by snooping on downstream signals in an optical network 有权
标题翻译：通过窥探光网络中的下行信号进行快速保护切换
公开(公告)号：US06771908B2
公开(公告)日：2004-08-03
申请号：US09781863
申请日：2001-02-12
申请人： Peter Van Eijk , Reed K. Even , Piet Van Heyningen , Song Jiang , Kyeong-Soo Kim , Woojune Kim , Fengkun Liu , Yong-Kwan Park
发明人： Peter Van Eijk , Reed K. Even , Piet Van Heyningen , Song Jiang , Kyeong-Soo Kim , Woojune Kim , Fengkun Liu , Yong-Kwan Park
IPC分类号： H04B1008
CPC分类号： H04J14/0291 , H04B10/032 , H04B10/272 , H04J3/0682 , H04J14/0282 , H04Q11/0066 , H04Q11/0067 , H04Q2011/0079 , H04Q2011/0081 , H04Q2011/0083
摘要： An optical network has an optical splitter connected to (1) a working optical subscriber unit (OSU) of a working circuit, (2) a protection OSU of a protection circuit, and (3) one or more optical network terminals (ONTs), where an ONT has (i) a working line termination (LT) unit of the working circuit and connected to the optical splitter via a working optical fiber and (ii) a protection LT unit of the protection circuit and connected to the optical splitter via a protection optical fiber. The present invention enables fast protection switching from the working circuit to the protection circuit. The arrival times of corresponding downstream cells are measured at both the working and protection LT units of the ONT, and information related to the arrival times is transmitted from the ONT to the protection OSU. A propagation delay value is generated based on the transmitted information for use by the protection OSU for communications with the ONT if and when protection switching is implemented upon detection of a failure in the working circuit.
摘要翻译：光网络具有连接到（1）工作电路的工作光用户单元（OSU）的光分路器，（2）保护电路的保护OSU，以及（3）一个或多个光网络终端（ONT）其中ONT具有（i）工作电路的工作线路终端（LT）单元，并且经由工作光纤连接到分光器，以及（ii）保护电路的保护LT单元，并经由保护光纤。本发明能够从工作电路到保护电路的快速保护切换。在ONT的工作和保护LT单元上测量相应下游单元的到达时间，并且与ONT相关的信息从ONT发送到保护OSU。如果在检测到工作电路中的故障时实现保护切换，则基于被保护OSU用于与ONT通信的传输信息生成传播延迟值。

2. 发明授权

US06778781B2 Health check algorithm for protection circuit in optical network 有权
标题翻译：光网络保护电路的健康检查算法
公开(公告)号：US06778781B2
公开(公告)日：2004-08-17
申请号：US09781862
申请日：2001-02-12
申请人： Peter Van Eijk , Reed K. Even , Piet Van Heyningen , Song Jiang , Kyeong-Soo Kim , Woojune Kim , Fengkun Liu , Yong-Kwan Park
发明人： Peter Van Eijk , Reed K. Even , Piet Van Heyningen , Song Jiang , Kyeong-Soo Kim , Woojune Kim , Fengkun Liu , Yong-Kwan Park
IPC分类号： H04B1008
CPC分类号： H04B10/272 , H04B10/077 , H04B10/07955 , H04B10/27 , H04J3/0682
摘要： An optical network has an optical splitter connected to (1) a working optical subscriber unit (OSU) of a working circuit via a working optical fiber, (2) a protection OSU of a protection circuit via a protection optical fiber, and (3) one or more optical network terminals (ONTs), where the protection OSU has a protection burst mode receiver (BMR) configured to receive an upstream optical signal from the optical splitter. The algorithm determines whether the protection OSU is functioning improperly. A reset pulse is applied at the protection BMR at a particular timing position and an attempt is made to interpret the current upstream cell received at the protection BMR. This process is repeated using different timing positions for the BMR reset pulse until the current upstream cell is correctly interpreted, e.g., based on the correct identification of an ATM header error correction (HEC) byte in the upstream cell. If, after a specified number of cycles, no upstream cells are correctly interpreted, then the protection circuit is determined to have failed. In one embodiment, the algorithm is based on a cell delineation procedure implemented as a state machine.
摘要翻译：光网络具有通过工作光纤连接到（1）工作电路的工作光用户单元（OSU）的光分路器，（2）经由保护光纤的保护电路的保护OSU，以及（3）一个或多个光网络终端（ONT），其中保护OSU具有被配置为从光分路器接收上行光信号的保护突发模式接收器（BMR）。该算法确定保护OSU是否正常工作。在特定定时位置处的保护BMR处施加复位脉冲，并尝试解释在保护BMR处接收到的当前上行单元。使用不同的BMR复位脉冲的定时位置重复该过程，直到例如基于上游单元中的ATM标题纠错（HEC）字节的正确识别来正确解释当前上行单元。如果在指定数量的周期之后没有正确解释上游单元，则确定保护电路发生故障。在一个实施例中，该算法基于实现为状态机的小区描绘过程。

3. 发明授权

US06868232B2 Fast protection switching by snooping on upstream signals in an optical network 有权
标题翻译：通过窥探光网络上的上行信号进行快速保护切换
公开(公告)号：US06868232B2
公开(公告)日：2005-03-15
申请号：US09781864
申请日：2001-02-12
申请人： Peter Van Eijk , Reed K. Even , Piet Van Hevingen , Song Jiang , Kyeong-Soo Kim , Woojune Kim , Fengkun Liu , Yong-Kwan Park
发明人： Peter Van Eijk , Reed K. Even , Piet Van Hevingen , Song Jiang , Kyeong-Soo Kim , Woojune Kim , Fengkun Liu , Yong-Kwan Park
IPC分类号： H04B10/08 , H04B1/74 , H04B10/00 , H04J3/00 , H04L12/44 , H04Q11/00
CPC分类号： H04J14/0291 , H04B10/032 , H04J3/0682 , H04J14/0282 , H04Q11/0066 , H04Q11/0067 , H04Q2011/0079 , H04Q2011/0081 , H04Q2011/0083
摘要： An optical network has an optical splitter connected to (1) a working optical subscriber unit (OSU) of a working circuit via a working optical fiber, (2) a protection OSU of a protection circuit via a protection optical fiber, and (3) one or more optical network terminals (ONTs). The present invention enables fast protection switching from the working OSU to the protection OSU. In one embodiment, the arrival times of corresponding upstream ranging reply PLOAM cells are measured at both the working and protection OSUs during ranging operations of the working OSU. In another embodiment, a cell delineation procedure is initiated at the protection OSU during normal, non-ranging operations of the working OSU to enable the protection OSU to correctly delineate upstream cells and the arrival times of corresponding upstream cells are then measured at both the working and protection OSUs. In either case, a propagation delay value is generated based on the measured arrival times for use by the protection OSU for communications with the one or more ONTs if and when protection switching is implemented upon detection of a failure in the working circuit, possibly without requiring the protection OSU to perform any ranging for the one or more ONTs.
摘要翻译：光网络具有通过工作光纤连接到（1）工作电路的工作光用户单元（OSU）的光分路器，（2）经由保护光纤的保护电路的保护OSU，以及（3）一个或多个光网络终端（ONT）。本发明能够从工作OSU到保护OSU的快速保护切换。在一个实施例中，相应的上游测距答复PLOAM小区的到达时间在工作OSU的测距操作期间在工作和保护OSU两者处测量。在另一个实施例中，在正常的非工作OSU的非测距操作期间，在保护OSU处启动小区描述过程，以使得保护OSU能够正确地描绘上游小区，然后在工作OSU上测量相应的上行小区的到达时间和保护OSU。在任一情况下，如果在检测到工作电路中的故障时实施保护切换，则可以基于所保护的OSU用于与一个或多个ONT通信的测量到达时间来生成传播延迟值，可能不需要保护OSU为一个或多个ONT执行任何测距。

4. 发明授权

US06359885B1 Multi-channel packet switching apparatus having traffic flow controlling and checking functions 失效
标题翻译：具有业务流控制和检查功能的多信道分组交换设备
公开(公告)号：US06359885B1
公开(公告)日：2002-03-19
申请号：US09138310
申请日：1998-08-21
申请人： Keun Bae Kim , Paul S. Min , Kyeong-Soo Kim , Otto Schmid
发明人： Keun Bae Kim , Paul S. Min , Kyeong-Soo Kim , Otto Schmid
IPC分类号： H04L1256
CPC分类号： H04L47/29 , H04L45/38 , H04L47/10 , H04L47/26
摘要： A multi-channel packet switching apparatus having traffic flow controlling and checking functions which is capable of simply controlling the system and having a simpler construction by concurrently performing a cell copy function and a cell routing function for providing a multi-casting function. The apparatus includes a synchronizing unit for synchronizing the cells recirculated through the recirculation link with the cells newly inputted into the routing unit based on time and providing to the routing unit, a reverse direction flow control requesting unit for counting the number of cells which are recirculated at every cell time and requesting a reverse direction flow control to a traffic providing source when the thusly counted number exceeds a threshold value, a reverse direction buffering control unit for restricting a cell output to the output port through which a request signal is outputted when a reverse direction flow control request signal is received from the traffic receiving source until the request signal is released, an error cell removing unit for removing an error cell based on the routing tag error among the cells from the bypass link by the routing unit within a predetermined time, and a cell loss counting unit for counting the cell loss which are not recirculated by the recirculation path setting unit by the input port.
摘要翻译：一种具有业务流控制和检查功能的多信道分组交换设备，其能够简单地控制系统并且通过同时执行小区复制功能和用于提供多播功能的小区路由功能具有更简单的结构。该装置包括：同步单元，用于基于时间将再循环链路再循环的单元与新输入到路由单元中的单元同步，并向路由单元提供反向流控制请求单元，用于对再循环的单元数进行计数在每个小区时间，并且当这样计数的数量超过阈值时向流量提供源请求反向流量控制;反向缓冲控制单元，用于将小区输出限制到输出端口，通过该输出端口输出请求信号从业务接收源接收到逆向流量控制请求信号，直到请求信号被释放为止，在预定的路由单元内，基于来自旁路链路的小区中的路由标签错误去除错误小区的差错小区删除单元时间，以及用于计数不再循环的细胞损失的细胞损失计数单元由再循环路径设定单元由输入端口填充。

5. 发明申请

US20080205332A1 HYBRID PROACTIVE ON-DEMAND ROUTING IN WIRELESS NETWORKS 审中-公开
标题翻译：无线网络中的混合自适应路由选择
公开(公告)号：US20080205332A1
公开(公告)日：2008-08-28
申请号：US12035291
申请日：2008-02-21
申请人： Kyeong-Soo Kim
发明人： Kyeong-Soo Kim
IPC分类号： H04Q7/00
CPC分类号： H04W40/26 , H04W84/22
摘要： Key scalability issues in the management of routing information at each node in wireless networks running a proactive routing protocol have been identified and a solution is set forth based on hybrid proactive on-demand routing with focus on the STA association information management at each MP in a WLAN mesh. A fisheye-scope-based GAB management scheme is described where the priority of an entry is the reverse of the hop count of its associated MAP/MPP from the MP, which can be easily applicable to the case of management of general routing information. For example, the GAB proposed can maintain only those entries whose associated MAPs/MPPs are two or less hops away from the MP.
摘要翻译：已经确定了在运行主动路由协议的无线网络中的每个节点处的路由信息的管理中的关键可扩展性问题，并且基于混合主动按需路由提出了一种解决方案，其中集中在每个MP处的STA关联信息管理 WLAN网格。描述了基于鱼眼镜的GAB管理方案，其中条目的优先级与MP相关联的MAP / MPP的跳数相反，这可以容易地应用于一般路由信息的管理的情况。例如，所提出的GAB可以仅保留与MP相关联的MAP / MPP距离MP两个或更少跳的那些条目。

6. 发明授权

US06980519B1 Multi-table based grant generator for improved granularity in an ATM-PON 有权
标题翻译：基于多表的授权生成器，用于改进ATM-PON中的粒度
公开(公告)号：US06980519B1
公开(公告)日：2005-12-27
申请号：US09616408
申请日：2000-07-14
申请人： David N Horn , Kyeong-Soo Kim , J H J Maessen
发明人： David N Horn , Kyeong-Soo Kim , J H J Maessen
IPC分类号： H04L12/44 , H04L12/56 , G01R31/08
CPC分类号： H04Q11/0067 , H04L12/5602 , H04L2012/5605 , H04L2012/561 , H04L2012/5615 , H04L2012/5679 , H04Q2011/0064
摘要： A multi-table-based grant generator in accordance with the present invention solves the issue of bandwidth granularity, while maintaining the simplicity of a table approach. The present invention grant generator provides grants of fine granularity for regulation of upstream transmission of cells in an ATM PON. Multiple grant tables having differing bandwidth granularities are linked together through a simple grant distribution mechanism. The grant tables and grant distribution mechanisms can be recursively linked to achieve a number of different granularities. The grant generator of the present invention is based on multiple grant tables with a combination of multiplexers, dividers, and address counters. The grant generator provides both larger and smaller bandwidths for data grants as well as PLOAM grants without large size grant tables. In one exemplary embodiment of the present invention, improved granularity is achieved, where a first grant table is used for one size of bandwidth grant, e.g., data grants, and the second grant table is used for another size of bandwidth grant, e.g., low bandwidth data grants as well as PLOAM grants. A simple clock divider couples to each of the grant tables through corresponding address counters. The clock divider provides a set number of bandwidth grants from each table over a complete cycle. The clock divider also selects an appropriate input port of a multiplexer through which the grants from each grant table are respectively transmitted. By having the ability to issue variable sized bandwidth grants, the granularity is significantly improved, thereby translating to a more efficient use of the bandwidth. More specifically, grants of a finer granularity can be issued without the need for an excessively large grant table usually thought to be necessary to produce fine granularities.
摘要翻译：根据本发明的基于多表的授权生成器解决了带宽粒度的问题，同时保持了表方法的简单性。本发明的授权生成器提供用于调整ATM PON中的小区的上行传输的细粒度的准许。具有不同带宽粒度的多个授权表通过简单的授权分配机制链接在一起。授权表和授权分配机制可以递归链接以实现多个不同的粒度。本发明的授权生成器基于具有多路复用器，分频器和地址计数器的组合的多个授权表。授权生成器为数据授予提供较大和较小的带宽以及无大容量授权表的PLOAM授权。在本发明的一个示例性实施例中，实现了改进的粒度，其中第一授权表用于一个大小的带宽授权，例如数据许可，并且第二许可表用于另一大小的带宽授权，例如低带宽数据授权以及PLOAM资助。简单的时钟分频器通过相应的地址计数器耦合到每个授权表。时钟分频器在一个完整的周期内提供每个表的一组数量的带宽授权。时钟分频器还选择分配了来自每个授权表的授权的多路复用器的适当输入端口。通过具有发布可变大小的带宽授权的能力，显着提高了粒度，从而转化为更有效地使用带宽。更具体地，可以发出更细粒度的授予，而不需要通常被认为是产生细粒度所必需的过大的授权表。

7. 发明授权

US06721797B1 Partial back pressure (PBP) transmission technique for ATM-PON using rate controllers to reduce a maximum output rate from a peak rate to a controlled rate 失效
标题翻译：使用速率控制器的ATM-PON的部分背压（PBP）传输技术将最大输出速率从峰值速率降低到受控速率
公开(公告)号：US06721797B1
公开(公告)日：2004-04-13
申请号：US09571929
申请日：2000-05-16
申请人： Kyeong-Soo Kim
发明人： Kyeong-Soo Kim
IPC分类号： G06F1516
CPC分类号： H04L12/5602 , H04L2012/5605 , H04L2012/5615 , H04L2012/5616 , H04L2012/5635 , H04L2012/5682 , H04Q11/0067 , H04Q11/0478
摘要： Efficient transmission and fairness guarantees for upstream traffic in ATM-PONs are achieved using a partial back pressure (PBP) technique for traffic generated from user network interface (UNI) cards, e.g. Ethernet UNI cards or other network interface cards for non-constant bit rate sources. The PBP technique utilizes a feedback flow control mechanism between priority queues and UNI cards in a customer-side interface device, e.g. an Optical Network Termination unit, to achieve improved transmission efficiency and fairness guarantees of incoming traffic. The peak upstream rate of the UNI cards is dynamically controlled based on feedback information from the interface device where a queue status monitor observes the traffic level in the priority queue. Upon reaching a designated threshold level in the priority queue, the status monitor triggers activation of rate controllers in the upstream output of the UNI cards. The rate controllers reduce the peak output of the UNI cards to a controlled peak rate. Once the queue level is reduced beyond a second threshold level, the status monitor deactivates the rate controllers.
摘要翻译：使用用于从用户网络接口（UNI）卡产生的流量的部分背压（PBP）技术来实现对ATM-PON中的上行流量的有效传输和公平性保证。以太网UNI卡或其他网络接口卡，用于非恒定比特率源。 PBP技术利用客户侧接口设备中的优先级队列和UNI卡之间的反馈流控制机制，例如。光网络终端单元，实现传输效率的提高和公平的保证流量。基于来自接口设备的反馈信息动态地控制UNI卡的上行速率，其中队列状态监视器观察优先级队列中的流量级别。在达到优先级队列中的指定阈值级别时，状态监视器触发UNI卡的上游输出中的速率控制器的激活。速率控制器将UNI卡的峰值输出降低到受控的峰值速率。一旦队列级别减少到超过第二阈值级别，状态监视器将停用速率控制器。

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