公开(公告)号：US20110268435A1

公开(公告)日：2011-11-03

申请号：US13144253

申请日：2009-01-13

申请人： Masahiko Mizutani ,  Yusuke Yajima ,  Nobuyuki Yamamoto ,  Yoshihiro Ashi

发明人： Masahiko Mizutani ,  Yusuke Yajima ,  Nobuyuki Yamamoto ,  Yoshihiro Ashi

IPC分类号： H04B10/08

CPC分类号： H04J14/0227 ,  H04L43/0817 ,  H04L43/0852 ,  H04L45/22 ,  H04L45/28 ,  H04Q11/0067 ,  H04Q2011/0081

摘要： Switching process at the occurrence of a path trouble is performed more quickly to reduce the number of packet discards during a traffic transition from a currently used system path to a standby system path within a section to be protected. An OLT (210-W) refers to the DBA information of a PON section and, if receiving no CCM frame at a timing at which the same should be received, then determines that some trouble has occurred on the path (S801) and transmits, to an OAM-compliant NE (200-Z), an application-for-switching frame (1501) to notify the OAM-compliant NE (200-Z) of the abnormal condition. The OAM-compliant NE (200-Z) monitors the occurrence of the trouble within the PON section nearly in real time, starts a switching process (S802) and generates and transmits a standby-system delivery request (321) (S302, S803). An OAM-compliant NE (200-A) switches the communication path to the standby-system passing through an OLT (210-P).

摘要翻译： 在发生路径故障时的切换过程被执行得更快以减少从当前使用的系统路径到要保护的区段内的备用系统路径的业务转换期间的丢弃丢弃数量。 OLT（210-W）是指PON部分的DBA信息，并且如果在接收相同的定时不接收到CCM帧，则确定在路径上发生了一些故障（S801） 到符合OAM的NE（200-Z），用于切换交换帧（1501）的OAM兼容NE（200-Z）通知异常状态。 符合OAM标准的NE（200-Z）几乎实时监控PON部分内的故障发生，开始切换处理（S802），生成并发送备用系统传送请求（321）（S302，S803） 。 符合OAM标准的网元（200-A）将通信路径切换到通过OLT（210-P）的备用系统。

公开(公告)号：US08554075B2

公开(公告)日：2013-10-08

申请号：US13144253

申请日：2009-01-13

申请人： Masahiko Mizutani ,  Yusuke Yajima ,  Nobuyuki Yamamoto ,  Yoshihiro Ashi

发明人： Masahiko Mizutani ,  Yusuke Yajima ,  Nobuyuki Yamamoto ,  Yoshihiro Ashi

IPC分类号： H04J14/00 ,  H04J14/02

CPC分类号： H04J14/0227 ,  H04L43/0817 ,  H04L43/0852 ,  H04L45/22 ,  H04L45/28 ,  H04Q11/0067 ,  H04Q2011/0081

摘要： Switching process at the occurrence of a path trouble is performed more quickly to reduce the number of packet discards during a traffic transition from a currently used system path to a standby system path within a section to be protected. An OLT (210-W) refers to the DBA information of a PON section and, if receiving no CCM frame at a timing at which the same should be received, then determines that some trouble has occurred on the path (S801) and transmits, to an OAM-compliant NE (200-Z), an application-for-switching frame (1501) to notify the OAM-compliant NE (200-Z) of the abnormal condition. The OAM-compliant NE (200-Z) monitors the occurrence of the trouble within the PON section nearly in real time, starts a switching process (S802) and generates and transmits a standby-system delivery request (321) (S302, S803). An OAM-compliant NE (200-A) switches the communication path to the standby-system passing through an OLT (210-P).

摘要翻译： 在发生路径故障时的切换过程被执行得更快以减少从当前使用的系统路径到要保护的区段内的备用系统路径的业务转换期间的丢弃丢弃数量。 OLT（210-W）是指PON部分的DBA信息，并且如果在接收相同的定时不接收到CCM帧，则确定在路径上发生了一些故障（S801） 到符合OAM的NE（200-Z），用于切换交换帧（1501）的OAM兼容NE（200-Z）通知异常状态。 符合OAM标准的NE（200-Z）几乎实时监控PON部分内的故障发生，开始切换处理（S802），生成并发送备用系统传送请求（321）（S302，S803） 。 符合OAM标准的网元（200-A）将通信路径切换到通过OLT（210-P）的备用系统。

公开(公告)号：US20100067901A1

公开(公告)日：2010-03-18

申请号：US12379634

申请日：2009-02-26

申请人： Masahiko Mizutani ,  Yusuke Yajima ,  Yoshihiro Ashi

发明人： Masahiko Mizutani ,  Yusuke Yajima ,  Yoshihiro Ashi

IPC分类号： H04B10/08 ,  H04J14/02

CPC分类号： H04B10/03 ,  H04B10/07955 ,  H04B10/272 ,  H04L25/0298 ,  H04Q11/0067 ,  H04Q2011/0081 ,  H04Q2011/0083

摘要： In a passive optical network system, a parent station includes a reception circuit that receives an optical signal from each of child stations using a threshold used to identify if the optical signal is 0 or 1; a bandwidth setting unit that determines a time at which each child station sends an optical signal; a storage unit that stores thresholds and intensities of optical signals received from the child stations; and a control unit that sets a threshold, stored corresponding to a sending time, in,the reception circuit to control a reception of an optical signal. The control unit has a function that compares an intensity of a signal received from each child station at an optical signal reception time with information stored in the storage unit to detect and determine a fault in the child station or in the optical fiber connected to the child station.

摘要翻译： 在无源光网络系统中，母站包括接收电路，其使用用于识别光信号是0或1的阈值从每个子站接收光信号; 带宽设定单元，确定每个子站发送光信号的时间; 存储单元，其存储从所述子站接收的光信号的阈值和强度; 以及控制单元，其将接收电路中相应于发送时间存储的阈值设置为控制光信号的接收。 控制单元具有将在光信号接收时刻从每个子站接收的信号的强度与存储在存储单元中的信息进行比较的功能，以检测和确定子站中或连接到该小孩的光纤中的故障 站。

公开(公告)号：US08254780B2

公开(公告)日：2012-08-28

申请号：US12379634

申请日：2009-02-26

申请人： Masahiko Mizutani ,  Yusuke Yajima ,  Yoshihiro Ashi

发明人： Masahiko Mizutani ,  Yusuke Yajima ,  Yoshihiro Ashi

IPC分类号： H04B10/00

CPC分类号： H04B10/03 ,  H04B10/07955 ,  H04B10/272 ,  H04L25/0298 ,  H04Q11/0067 ,  H04Q2011/0081 ,  H04Q2011/0083

摘要： In a passive optical network system, a parent station includes a reception circuit that receives an optical signal from each of child stations using a threshold used to identify if the optical signal is 0 or 1; a bandwidth setting unit that determines a time at which each child station sends an optical signal; a storage unit that stores thresholds and intensities of optical signals received from the child stations; and a control unit that sets a threshold, stored corresponding to a sending time, in the reception circuit to control a reception of an optical signal. The control unit has a function that compares an intensity of a signal received from each child station at an optical signal reception time with information stored in the storage unit to detect and determine a fault in the child station or in the optical fiber connected to the child station.

摘要翻译： 在无源光网络系统中，母站包括接收电路，其使用用于识别光信号是0或1的阈值从每个子站接收光信号; 带宽设定单元，确定每个子站发送光信号的时间; 存储单元，其存储从所述子站接收的光信号的阈值和强度; 以及控制单元，其在接收电路中设置对应于发送时间存储的阈值，以控制光信号的接收。 控制单元具有将在光信号接收时刻从每个子站接收的信号的强度与存储在存储单元中的信息进行比较的功能，以检测和确定子站中或连接到该小孩的光纤中的故障 站。

公开(公告)号：US20070237177A1

公开(公告)日：2007-10-11

申请号：US11702155

申请日：2007-02-05

申请人： Hideki Endo ,  Masahiko Mizutani ,  Masayuki Takase ,  Kenichi Sakamoto ,  Yoshihiro Ashi ,  Takayuki Kanno ,  Nobuyuki Yamamoto

发明人： Hideki Endo ,  Masahiko Mizutani ,  Masayuki Takase ,  Kenichi Sakamoto ,  Yoshihiro Ashi ,  Takayuki Kanno ,  Nobuyuki Yamamoto

IPC分类号： H04J3/22

CPC分类号： H04Q11/0067 ,  H04L47/115 ,  H04L47/263 ,  H04Q11/0071 ,  H04Q2011/0064

摘要： Disclosed herewith is a PON system and a bandwidth controlling method capable of controlling congestion with use of an upstream bandwidth in a PON section efficiently when congestion occurs in a gateway (GW) connected to an OLT. An OLT connected to a plurality of ONUs through a passive optical network (PON) and to a gateway (GW) through a communication line, when receiving a congestion occurrence notice indicating a congestion occurred output number from a GW, identifies the identifier of the ONU that is using a GW output line having the congestion output port number and shifts the bandwidth controlling of the PON section in a normal mode for allocating a bandwidth to each ONU normally to that in a bandwidth suppression mode for allocating a congestion time allowable bandwidth that is less than the current bandwidth to the ONU having the identified ONU identifier and a bandwidth to each of other ONUs according to its transmission queue length.

摘要翻译： 这里公开了一种PON系统和带宽控制方法，其能够在连接到OLT的网关（GW）中发生拥塞时有效地控制在PON部分中使用上行带宽的拥塞。 当从GW接收到指示发生拥塞发生拥塞的拥塞发生通知时，通过无线光网络（PON）连接到多个ONU并通过通信线路连接到网关（GW），识别ONU的标识符 正在使用具有拥塞输出端口号的GW输出线，并且以正常模式移动PON部分的带宽控制，以将每个ONU的带宽正常分配给带宽抑制模式中的带宽，以分配拥塞时间允许带宽 小于根据其传输队列长度具有所识别的ONU标识符的ONU的当前带宽和对于每个其他ONU的带宽。

公开(公告)号：US20100021161A1

公开(公告)日：2010-01-28

申请号：US12572695

申请日：2009-10-02

申请人： Hideki Endo ,  Masahiko Mizutani ,  Masayuki Takase ,  Kenichi Sakamoto ,  Yoshihiro Ashi ,  Takayuki Kanno ,  Nobuyuki YAMAMOTO

发明人： Hideki Endo ,  Masahiko Mizutani ,  Masayuki Takase ,  Kenichi Sakamoto ,  Yoshihiro Ashi ,  Takayuki Kanno ,  Nobuyuki YAMAMOTO

IPC分类号： H04J14/00 ,  H04L12/24

CPC分类号： H04Q11/0067 ,  H04L47/115 ,  H04L47/263 ,  H04Q11/0071 ,  H04Q2011/0064

摘要： Disclosed herewith is a PON system and a bandwidth controlling method capable of controlling congestion with use of an upstream bandwidth in a PON section efficiently when congestion occurs in a gateway (GW) connected to an OLT. An OLT connected to a plurality of ONUs through a passive optical network (PON) and to a gateway (GW) through a communication line, when receiving a congestion occurrence notice indicating a congestion occurred output number from a GW, identifies the identifier of the ONU that is using a GW output line having the congestion output port number and shifts the bandwidth controlling of the PON section in a normal mode for allocating a bandwidth to each ONU normally to that in a bandwidth suppression mode for allocating a congestion time allowable bandwidth that is less than the current bandwidth to the ONU having the identified ONU identifier and a bandwidth to each of other ONUs according to its transmission queue length.

摘要翻译： 这里公开了一种PON系统和带宽控制方法，其能够在连接到OLT的网关（GW）中发生拥塞时有效地控制在PON部分中使用上行带宽的拥塞。 当从GW接收到指示发生拥塞发生拥塞的拥塞发生通知时，通过无线光网络（PON）连接到多个ONU并通过通信线路连接到网关（GW），识别ONU的标识符 正在使用具有拥塞输出端口号的GW输出线，并且以正常模式移动PON部分的带宽控制，以将每个ONU的带宽正常分配给带宽抑制模式中的带宽，以分配拥塞时间允许带宽 小于根据其传输队列长度具有所识别的ONU标识符的ONU的当前带宽和对于每个其他ONU的带宽。

公开(公告)号：US08098678B2

公开(公告)日：2012-01-17

申请号：US12572695

申请日：2009-10-02

申请人： Hideki Endo ,  Masahiko Mizutani ,  Masayuki Takase ,  Kenichi Sakamoto ,  Yoshihiro Ashi ,  Takayuki Kanno ,  Nobuyuki Yamamoto

发明人： Hideki Endo ,  Masahiko Mizutani ,  Masayuki Takase ,  Kenichi Sakamoto ,  Yoshihiro Ashi ,  Takayuki Kanno ,  Nobuyuki Yamamoto

IPC分类号： H04L12/28

CPC分类号： H04Q11/0067 ,  H04L47/115 ,  H04L47/263 ,  H04Q11/0071 ,  H04Q2011/0064

摘要： Disclosed herewith is a PON system and a bandwidth controlling method capable of controlling congestion with use of an upstream bandwidth in a PON section efficiently when congestion occurs in a gateway (GW) connected to an OLT. An OLT connected to a plurality of ONUs through a passive optical network (PON) and to a gateway (GW) through a communication line, when receiving a congestion occurrence notice indicating a congestion occurred output number from a GW, identifies the identifier of the ONU that is using a GW output line having the congestion output port number and shifts the bandwidth controlling of the PON section in a normal mode for allocating a bandwidth to each ONU normally to that in a bandwidth suppression mode for allocating a congestion time allowable bandwidth that is less than the current bandwidth to the ONU having the identified ONU identifier and a bandwidth to each of other ONUs according to its transmission queue length.

摘要翻译： 这里公开了一种PON系统和带宽控制方法，其能够在连接到OLT的网关（GW）中发生拥塞时有效地控制在PON部分中使用上行带宽的拥塞。 当从GW接收到指示发生拥塞发生拥塞的拥塞发生通知时，通过无线光网络（PON）连接到多个ONU并通过通信线路连接到网关（GW），识别ONU的标识符 正在使用具有拥塞输出端口号的GW输出线，并且以正常模式移动PON部分的带宽控制，以将每个ONU的带宽正常分配给带宽抑制模式中的带宽，以分配拥塞时间允许带宽 小于根据其传输队列长度具有所识别的ONU标识符的ONU的当前带宽和对于每个其他ONU的带宽。

公开(公告)号：US07602800B2

公开(公告)日：2009-10-13

申请号：US11702155

申请日：2007-02-05

申请人： Hideki Endo ,  Masahiko Mizutani ,  Masayuki Takase ,  Kenichi Sakamoto ,  Yoshihiro Ashi ,  Takayuki Kanno ,  Nobuyuki Yamamoto

发明人： Hideki Endo ,  Masahiko Mizutani ,  Masayuki Takase ,  Kenichi Sakamoto ,  Yoshihiro Ashi ,  Takayuki Kanno ,  Nobuyuki Yamamoto

IPC分类号： H04L12/28

CPC分类号： H04Q11/0067 ,  H04L47/115 ,  H04L47/263 ,  H04Q11/0071 ,  H04Q2011/0064

摘要： Disclosed herewith is a PON system and a bandwidth controlling method capable of controlling congestion with use of an upstream bandwidth in a PON section efficiently when congestion occurs in a gateway (GW) connected to an OLT. An OLT connected to a plurality of ONUs through a passive optical network (PON) and to a gateway (GW) through a communication line, when receiving a congestion occurrence notice indicating a congestion occurred output number from a GW, identifies the identifier of the ONU that is using a GW output line having the congestion output port number and shifts the bandwidth controlling of the PON section in a normal mode for allocating a bandwidth to each ONU normally to that in a bandwidth suppression mode for allocating a congestion time allowable bandwidth that is less than the current bandwidth to the ONU having the identified ONU identifier and a bandwidth to each of other ONUs according to its transmission queue length.

摘要翻译： 这里公开了一种PON系统和带宽控制方法，其能够在连接到OLT的网关（GW）中发生拥塞时有效地控制在PON部分中使用上行带宽的拥塞。 当从GW接收到指示发生拥塞发生拥塞的拥塞发生通知时，通过无线光网络（PON）连接到多个ONU并通过通信线路连接到网关（GW），识别ONU的标识符 正在使用具有拥塞输出端口号的GW输出线，并且以正常模式移动PON部分的带宽控制，以将每个ONU的带宽正常分配给带宽抑制模式中的带宽，以分配拥塞时间允许带宽 小于根据其传输队列长度具有所识别的ONU标识符的ONU的当前带宽和对于每个其他ONU的带宽。

公开(公告)号：US20070242604A1

公开(公告)日：2007-10-18

申请号：US11703769

申请日：2007-02-08

申请人： Masayuki Takase ,  Kenichi Sakamoto ,  Masahiko Mizutani ,  Hideki Endo ,  Yoshihiro Ashi ,  Takayuki Kanno ,  Nobuyuki Yamamoto

发明人： Masayuki Takase ,  Kenichi Sakamoto ,  Masahiko Mizutani ,  Hideki Endo ,  Yoshihiro Ashi ,  Takayuki Kanno ,  Nobuyuki Yamamoto

IPC分类号： H04J3/14

CPC分类号： H04J3/14

摘要： The invention realizes defect indication on a multipoint logical path and switching of the logical path when the multipoint logical path is configured using a transfer protocol of configuring a logical path, typified by MPLS etc., in a ring network. Two routes of the multipoint logical paths, a working path and a backup path, are set up. Each of them not only transmits a frame transmitted from a transmitting end node to multicast receiving end nodes but also forwards the frame to the transmitting end node and terminates it also at the transmitting end node after making it go around the ring. Any node that detects a defect transmits a forward defect indication frame to a multipoint logical path in which the defect occurs. The transmitting end node having received the forward defect indication frame halts the use of the notified multipoint logical path, and transmits a frame in another path in which the forward defect indication frame is not received within a fixed time period. Moreover, when the forward defect indication frame is received from the both multipoint logical paths, the transmitting end node copies the frame and forwards them to the both multipoint logical paths.

摘要翻译： 本发明在环路网络中使用以MPLS等为代表的逻辑路径的配置传输协议来配置多点逻辑路径时，实现多点逻辑路径上的缺陷指示和逻辑路径的切换。 设置了多路逻辑路径的两条路由，即工作路径和备份路径。 它们中的每一个不仅将从发送端节点发送的帧发送到多播接收端节点，而且还将帧转发到发送端节点，并且在使其绕环之后也将其发送到发送端节点。 检测缺陷的任何节点将前向缺陷指示帧发送到发生缺陷的多点逻辑路径。 已经接收到前向缺陷指示帧的发送端节点停止所通知的多点逻辑路径的使用，并且在固定时间段内发送未接收到前向缺陷指示帧的另一路径中的帧。 此外，当从两个多点逻辑路径接收到前向缺陷指示帧时，发送端节点复制该帧并将其转发到两个多点逻辑路径。

公开(公告)号：US08169895B2

公开(公告)日：2012-05-01

申请号：US11703769

申请日：2007-02-08

申请人： Masayuki Takase ,  Kenichi Sakamoto ,  Masahiko Mizutani ,  Hideki Endo ,  Yoshihiro Ashi ,  Takayuki Kanno ,  Nobuyuki Yamamoto

发明人： Masayuki Takase ,  Kenichi Sakamoto ,  Masahiko Mizutani ,  Hideki Endo ,  Yoshihiro Ashi ,  Takayuki Kanno ,  Nobuyuki Yamamoto

IPC分类号： G06F11/07

CPC分类号： H04J3/14

摘要： The invention realizes defect indication on a multipoint logical path and switching of the logical path using a transfer protocol of configuring a logical path in a ring network. A working path and a backup path are set up where each transmits a frame from a transmitting end node to multicast receiving end nodes, forwards the frame to the transmitting end node and terminates it at the transmitting end node after going around the ring. Any node detecting a defect transmits a forward defect indication frame to a multipoint logical path in which the defect occurs. The transmitting end node receiving the forward defect indication frame halts the use of the notified multipoint logical path, and transmits a frame in another path where the forward defect indication frame is not received. When received from both multipoint logical paths, the transmitting end node copies the frame and forwards them to both paths.

摘要翻译： 本发明使用在环形网络中配置逻辑路径的传输协议来实现多点逻辑路径上的缺陷指示和逻辑路径的切换。 建立工作路径和备用路径，其中每个发送帧从发送端节点发送到多播接收端节点，将帧转发到发送端节点，并在环绕环后在发送端节点终止它。 检测到缺陷的任何节点将前向缺陷指示帧发送到发生缺陷的多点逻辑路径。 接收前向缺陷指示帧的发送端节点停止使用所通知的多点逻辑路径，并且在未接收到前向缺陷指示帧的另一路径中发送帧。 当从两个多点逻辑路径接收时，发送端节点复制帧并将它们转发到两个路径。